[Q] USB Audio Stream Pops & Clicks - Nexus 6 Q&A, Help & Troubleshooting

Hi All,
I have an AT&T Nexus 6 and I am trying to stream USB audio out to my car stereo. When doing so I am hearing clicking and popping in the audio. I thought it was possibly a ROM/kernel issue but I am fully back to stock & locked and the problem still exists. Audio via mini stereo jack (aux) works fine of course, as does sound coming out of the phone's speakers, headphones, etc. I have tested 2 other android devices (Nexus 4 and Samsung Nexus 10) and USB audio is working perfectly fine in my car.
If anyone has any guidance on how to troubleshoot this it would be great. This is strange to me as USB audio out was added as a software update, so I find it very odd that it works on my older devices and but not the N6. If I can't get this figured out I will have to schedule an appointment at an AT&T warranty center to likely exchange my 35-day-old phone for a fecking refurb
Thanks for any help guys, cheers!

I RMA'd my Nexus 6 and the replacement behaves the exact same way. Other non-Nexus 6 devices tested work just fine.
Has anyone actually used streaming USB audio other than me?

rbross3030 said:
I RMA'd my Nexus 6 and the replacement behaves the exact same way. Other non-Nexus 6 devices tested work just fine.
Has anyone actually used streaming USB audio other than me?
Click to expand...
Click to collapse
What app are you using to stream? I tried, but do t know if my radio wont accept it or not. I know I can't read movies from my phone or flash drive.
Sent from my Nexus 6

Casper34 said:
What app are you using to stream? I tried, but do t know if my radio wont accept it or not. I know I can't read movies from my phone or flash drive.
Click to expand...
Click to collapse
The idea behind USB audio streaming is that you don't need to use an app. The device streams any and all audio out of the phone via USB rather than out of the speakers. This means that you can use Spotify, Youtube, Pandora, PlayerPro, etc. while connected to your car stereo via USB and have the audio in your phone played through your car speakers in lossless digital. This is a feature that was introduced in Android 4.4 but seemingly is saught out by nobody but me.
Prior to USB audio out, these were common options/solutions, all with drawbacks:
1. Plug into the headphone jack which is an analog signal prone to noise, interference, and muddy EQ.
2. Plug into USB and Android will automatically mount your phones sdcard partition the same way as USB thumb drive. This only works for playing media files that are saved directly to the phone. All other sounds/apps do not work through as the phone's audio hardware is not being used. This means no Pandora, Spotify, etc. and no controlling music from the phone. Casper, your radio is probably trying to mount your N6 this way – most car stereos do and are not expecting have a device connected that is outputting its own hardware-driven digital audio stream.
3. Bluetooth. This was the best solution as it uses the phones audio hardware and thus all audio is output the same way as the new USB out feature. The drawback to this is that bluetooth uses lossy-compression and so is lower fidelity than option #2, though A2DP has made quality far better than it once was.
If you can't already tell, I'm sort of a fidelity nazi and this is why I'm so desperate to find a solution to this issue at hand with the Nexus 6 USB audio out that noone seems to know exists.

Any update on this? I just got my Project Fi Nexus 6 and I am regretting not doing more research on the USB streaming in the car. The iPhone 6 worked flawlessly and I could change songs with my car (I just lacked good service). The car usb won't even recognize my google play albums downloaded to my phone BUT it will pull up my zedge ringtones. Every time I try to fool around with it, it just keeps looping my Mario ringtone through my car speakers lol. But seriously, any suggestions. I am so desperate.

ericajm85 said:
Any update on this? I just got my Project Fi Nexus 6 and I am regretting not doing more research on the USB streaming in the car. The iPhone 6 worked flawlessly and I could change songs with my car (I just lacked good service). The car usb won't even recognize my google play albums downloaded to my phone BUT it will pull up my zedge ringtones. Every time I try to fool around with it, it just keeps looping my Mario ringtone through my car speakers lol. But seriously, any suggestions. I am so desperate.
Click to expand...
Click to collapse
I gave up and went with using bluetooth. Cost me another $120 in bull**** hardware that Grom Audio sells to make this "upgrade" possible. Quality is **** compared to what it could've been as well... sigh... first world problems

I have a Grom USB2 and a Galaxy S4 that I just upgraded from 4.4.1 to 5.0.1 (Goldeneye ROM). I successfully streamed USB with KitKat (Grom has a configure file that enables their unit to do this) but have been unable to do the same thing with Lollipop. I did the *#0808# thing and tried several settings but nothing has worked. Any ideas?

Related

Nexus 7 with 4.2 - Bluetooth issues

Can anyone with a N7 and 4.2 confirm my issue?
I'm using the N7 everday to stream music from TuneIn, Google Music and Spotify to stream to my Bluetooth speakers. I never had issues with Android 4.1, but since 4.2 it's stuttering every few seconds. Especially when the content gets streamed over wifi and is not stored on the N7. To go sure that it's not just my wifi I tried it with my GNex and 4.1 and there I don't have this issue.
MysteriousDiary said:
Can anyone with a N7 and 4.2 confirm my issue?
I'm using the N7 everday to stream music from TuneIn, Google Music and Spotify to stream to my Bluetooth speakers. I never had issues with Android 4.1, but since 4.2 it's stuttering every few seconds. Especially when the content gets streamed over wifi and is not stored on the N7. To go sure that it's not just my wifi I tried it with my GNex and 4.1 and there I don't have this issue.
Click to expand...
Click to collapse
Yes, I believe all Nexus 7's will be affected, too. Check out this Google Code bugreport:
http://code.google.com/p/android/issues/detail?id=39633
I am highly disappointed in Google for this. This is a HUGE use-case for me, and it has essentially made my $150 headphones worthless, as well as essentially ruined my use of the Nexus 7 in public, as I cannot listen to music/videos at a public shop/location with the BT headset/headphones that I always have with me. Wired headphones? Ick.
Yes, I've created that issue in the bug tracker. Please star it if you've the same issue. I'm now thinking of going back to 4.1 since I used this feature daily.
MysteriousDiary said:
Yes, I've created that issue in the bug tracker. Please star it if you've the same issue. I'm now thinking of going back to 4.1 since I used this feature daily.
Click to expand...
Click to collapse
I did star it, haha. Small world, I suppose. Did you see this too: http://code.google.com/p/android/issues/detail?id=39632
Very similar to what happens on my N7 on the odd few seconds I have uninterrupted BT audio output. WTF does Google keep doing with their BT stack? This is ridiculous. It is affected BOTH of their flagship devices. I will all but guarantee that the N4 is affected too.
Well since the 4.2 update my nexus has become quite useless to me. I used to use the bluetooth tethering feature on my phone (which I pay for).
Since the update this feature no longer works
http://code.google.com/p/android/issues/detail?id=39637&thanks=39637&ts=1352902123
just tried my bluetooth headset. crackling/studdering issues.
nexus 7, 32gb.
I can confirm the bluetooth tethering issue as well. Sound is stuttering and tethering over bluetooth is impossible. So now we've two big bluetooth issues :/
I have the same issue. What's weird is that it's fine when playing through my creative bluetooth speakers in my kitchen but affects my philips fidelo bluetooth speakers in my bedroom!
MysteriousDiary said:
I can confirm the bluetooth tethering issue as well. Sound is stuttering and tethering over bluetooth is impossible. So now we've two big bluetooth issues :/
Click to expand...
Click to collapse
Have you checked "connect to device for internet access"?
I'm having no issues tethering to my HTC desire since upgrading to 4.2, but I did notice that i have to check this box every time that I connect via Bluetooth now.
Sent from my Nexus 7 using xda app-developers app
I just tested BT tethering to my Galaxy Note, all is well there too. The audio problems are not acceptable, though. I am not happy at all.
mrchiggles said:
I have the same issue. What's weird is that it's fine when playing through my creative bluetooth speakers in my kitchen but affects my philips fidelo bluetooth speakers in my bedroom!
Click to expand...
Click to collapse
I have a Creative D3X and got the issue since 4.2 :/
roonster said:
Have you checked "connect to device for internet access"?
I'm having no issues tethering to my HTC desire since upgrading to 4.2, but I did notice that i have to check this box every time that I connect via Bluetooth now.Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
I can't even activate that flag. It's there, but nothinig happens when I try to check it.
roonster said:
Have you checked "connect to device for internet access"?
I'm having no issues tethering to my HTC desire since upgrading to 4.2, but I did notice that i have to check this box every time that I connect via Bluetooth now.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Worked for me, thankyou.
robyr said:
Yes, I believe all Nexus 7's will be affected, too. Check out this Google Code bugreport:
http://code.google.com/p/android/issues/detail?id=39633
I am highly disappointed in Google for this. This is a HUGE use-case for me, and it has essentially made my $150 headphones worthless, as well as essentially ruined my use of the Nexus 7 in public, as I cannot listen to music/videos at a public shop/location with the BT headset/headphones that I always have with me. Wired headphones? Ick.
Click to expand...
Click to collapse
Working ok here to Creative D200 speakers.
WibblyW said:
Working ok here to Creative D200 speakers.
Click to expand...
Click to collapse
Are you playing music you have locally loaded on the device? This issue is most prevalent with streaming audio such as Pandora, and streaming videos like YouTube. I have tried: A set of Motorola SF600 headphones, Belkin B51 Audio Bridge, and a Plantronics M155, so I doubt it is an audio-sink specific issue.
robyr said:
Are you playing music you have locally loaded on the device? This issue is most prevalent with streaming audio such as Pandora, and streaming videos like YouTube. I have tried: A set of Motorola SF600 headphones, Belkin B51 Audio Bridge, and a Plantronics M155, so I doubt it is an audio-sink specific issue.
Click to expand...
Click to collapse
I have D200s too which are working fine for amazon cloud streaming. My fidelo dock using the same cloud streaming is breaking up so does seem to affect different devices. Maybe they only tested it on creative speakers!
mrchiggles said:
I have D200s too which are working fine for amazon cloud streaming. My fidelo dock using the same cloud streaming is breaking up so does seem to affect different devices. Maybe they only tested it on creative speakers!
Click to expand...
Click to collapse
It may be a 2.1 vs 3.0 issue? **** at this point I am just sick and tired of doing Google's own testing for them. This is a disgrace.
I am testing this right now.
I am able to get audio from Audible book loaded on N7 to my Plantronic M1100, no problems. Headset is 2.1 EDR
Also, I have just paired my N7 with my work Lenovo X230 Laptop (Win 7) via BT, Audio is being played through with no issue and on screen controls on laptop are working. Laptop has a 4.0 chip built in.
Edit: Just installed Tunein radio, working on BT Headset and laptop still.
My speaker system is using Bluetooth 2.1 + EDR. Flashed the full factory image to go sure that it wasn't caused by the update procedure ... still the same problem. It's stuttering every 2-3 seconds.
robyr said:
Are you playing music you have locally loaded on the device? This issue is most prevalent with streaming audio such as Pandora, and streaming videos like YouTube. I have tried: A set of Motorola SF600 headphones, Belkin B51 Audio Bridge, and a Plantronics M155, so I doubt it is an audio-sink specific issue.
Click to expand...
Click to collapse
Playing Spotify direct from the cloud
Just gave it a go with Sony DR-BT21G headphones. Play Music and YouTube both worked without problem. These headphones are only BT2.0, for what it's worth. My Nexus was stock 4.1.2 and did OTA to 4.2.

Htc One Bluetooth issues

Hello Everyone I am here to find some answers (hopefully)...
So I got the HTC One Coming from the Iphone 5. I've had numerous Android devices before, and apple products. I just recently also purchased a subaru wrx, it has bluetooth radio. When I had my iphone 5, i synced perfectly with the radio, hands free worked Awesome. When i got into the car my spotify or pandora would immediately start playing..
Now i get my htc one, and i pair my phone with the car, but my hands free audio sounds terrible, i can barely understand what the other person is saying. On top of that i have to manually connect the phone to bluetooth everytime i turn on my car, its very annoying. I have tried many different roms, and kernels, and i even went back to stock but i can't seem what the problem is. I am about to change the radio in the car thinking its not very user friendly with android devices.
If anyone can point me in the right direction that would be awesome. I am pulling my hairs, i love the htc one, but i miss my handsfree bluetooth functionality. I have tried searching the forums, but i haven't found any answers that worked.
I am having the same issue with having to manually confirm the Bluetooth connection in my car. Mines on a Toyota 86 with the GPS in dash, I believe it's made by eclipse who supply Subaru?
Sent from my HTC_PN071 using Tapatalk 2
I have to manually connect each time to my bluetooth nakamichi speaker.
I too am having same issues. I also have a 2011 WRX with original radio. With my prior phone (GS2) I connected without problem and automatically every time I started the car. I have to manually connect the HTC one every time. Many others seem to not have this problem with other vehicles, so I'm starting to think it's the Subaru radio not playing nice with the phone. Please post if you find a solution.
Sent from my HTC One using xda app-developers app
I installed an app called Bluetooth file transfer that fixed the issue somehow.
Sent from my HTC_PN071 using Tapatalk 2
I had similar problems in my car with an alpine radio, but with my galaxy s3.
In fact the thing is that when you register a phone on your radio (in my case) the radio just looks for the first one defined and registered to autoconnect.
Now, if in your radio you clear registered devices list, and try to register your htc, i am pretty convinced that it will autoconnect all the time.
Hope it helps,
Regards,
Nicolas.
My HTCone synched immediately with the OEM bluetooth in my 2011 Kia Forte. No problema, in fact, it is a much better connection (clarity) than with the old EVO 4g, which initially required a bit of fiddling to make work. Hands free phone call system on the KIA works very well too. FWIW.
Tobz said:
I installed an app called Bluetooth file transfer that fixed the issue somehow.
Sent from my HTC_PN071 using Tapatalk 2
Click to expand...
Click to collapse
Thanks for that. I sorted out how to BTconnect my HTCone<--> Macbook, but could only do so, one file at a time. The app you mentioned works great (!) and allows me to push multiple files at ne time. Reviews say it is also a great file manager, that I have yet to determine but if so, an added bonus.
I am also having a problem with the HTC One bluetooth in my car. The phone connects to the car’s bluetooth system, pairs properly, although very slow, it uploads the phone book and call history. The problem is the call quality. The people I am calling complain about the sound, they feel the volume is too high and this distorts the sound, as well as there is too much noise added to the voice, or something like that. As soon as I switch to the phone speaker the sound that they hear gets better. This makes me think the bluetooth on this phone sucks. One person suggested the interaction between the noise canceling and main microphone is mixed up, but if I am using my car's sound system it should not use the phone's microphones anyway, or maybe it does? I guess what I am trying to say is that when I am using the car's stereo it should use only the car's microphones and speakers , but sound like the phone noise canceling microphone is still active.
If anybody has ideas for fixes, or suggestion for further tests, I will do it.
P.S. I didn't have any problems with my car's bluetooth with my iPhone 4 or Nexus 4.
Same for me. Sometimes the problem disappears. I assume the problem comes from the BTstack. In fact, the one is the only Android phone I know that use a different BT stack than blueZ. This stack is HTC one. It allows us having avrcp 1.3 (The name of the song displayed on our car audio). I hope the HTC one Google edition use blueZ stack. I will try a Rom based ion that. If the problem disappears, it will confirm the problem come from HTC stack.
ljam said:
I am also having a problem with the HTC One bluetooth in my car. The phone connects to the car’s bluetooth system, pairs properly, although very slow, it uploads the phone book and call history. The problem is the call quality. The people I am calling complain about the sound, they feel the volume is too high and this distorts the sound, as well as there is too much noise added to the voice, or something like that. As soon as I switch to the phone speaker the sound that they hear gets better. This makes me think the bluetooth on this phone sucks. One person suggested the interaction between the noise canceling and main microphone is mixed up, but if I am using my car's sound system it should not use the phone's microphones anyway, or maybe it does? I guess what I am trying to say is that when I am using the car's stereo it should use only the car's microphones and speakers , but sound like the phone noise canceling microphone is still active.
If anybody has ideas for fixes, or suggestion for further tests, I will do it.
P.S. I didn't have any problems with my car's bluetooth with my iPhone 4 or Nexus 4.
Click to expand...
Click to collapse
BT problem
Hi,
I'm also having a problem with my BT while paired to the BT in my awesome Volkswagen sirocco.
I don't see any contact or missed calls or recent calls. The log is empty.
Any help will be much appreciated.
Blankzz said:
Hello Everyone I am here to find some answers (hopefully)...
So I got the HTC One Coming from the Iphone 5. I've had numerous Android devices before, and apple products. I just recently also purchased a subaru wrx, it has bluetooth radio. When I had my iphone 5, i synced perfectly with the radio, hands free worked Awesome. When i got into the car my spotify or pandora would immediately start playing..
Now i get my htc one, and i pair my phone with the car, but my hands free audio sounds terrible, i can barely understand what the other person is saying. On top of that i have to manually connect the phone to bluetooth everytime i turn on my car, its very annoying. I have tried many different roms, and kernels, and i even went back to stock but i can't seem what the problem is. I am about to change the radio in the car thinking its not very user friendly with android devices.
If anyone can point me in the right direction that would be awesome. I am pulling my hairs, i love the htc one, but i miss my handsfree bluetooth functionality. I have tried searching the forums, but i haven't found any answers that worked.
Click to expand...
Click to collapse
I am having the same issue...I had the Motorola Atrix 4g and it paired immediately with my Pioneer deck. That phone always reconnected and like you mentioned, pulled up Pandora etc. Now I have the HTC One, and it paired and connected but it refuses to play audio. Handsfree works (kinda sloppily, also like you mentioned), but the Media Audio portion doesn't work even though the phone reports that it is connected. My stereo says no device detected when I switch to BT Audio. I hope you find a resolution to this issue, I have searched everywhere and of course I saved the best for last and decided to finally check here @ XDA.
I posted earlier in the thread that I was having difficulties pairing my One with my Subaru WRX factory radio. I could not get it to automatically connect with the phone each time I started the car. I could manually get it to connect but that was a pain every time I got in the car. I was able to solve my issue by deleting every other pairing the radio had with other prior phones. I deleted any pairing my One had previously and then paired it with the car radio before any other device. It now connects regularly every time I start the car, and both audio and phone functions work perfectly. I would recommend anyone having blue-tooth issues to try the same. The Subaru radio also had a weird menu system that was different whether I was pairing the phone by using voice commands or trying to do it with physical buttons on the radio. Very confusing but going through the hands free voice command menu seemed to pair both audio and phone functions, where I could only pair audio functions when using the physical buttons on the radio. Seemed like two different systems.
Been having crappy noise issues with my 09 Acura TSX. I emailed HTC regarding this problem but, of course, their response was to 'check with the car manufacturer'. Will try that method and see how it goes.
My problem is a bit different. My htc One connects flawlessly with my JVC unit that too automatically. But it keeps disconnecting and reconnecting. And that is a major issue. The phone also gets insanely hot in this process and today the OS crashed two times and i had to do a Hard Reset.
I am coming from an iPhone 5 on which bluetooth streaming was flawless.
Anyway to stop the auto-disconnect and re-connect going on.
My Bluetooth is mess up.
It can pair up, but the Address Book is not showing up on the car screen menu now. I don't know what happened. When I play music on my phone to the Bluetooth in the car, it is silence.
Does anyone know what is going on?
HTC One Bluetooth Problem in BMW
I am having the same problem.
My HTC One connects, I can make calls from the phone and the calls are clear, but I cannot see my contacts.
I have emailed HTC and they say it is the car (BMW 5 series). I have checked with BMW and there isn't an update for my car available. I am therefore, using the latest software. I previously used the HTC sensation which worked fine in the same car.
I am wondering if one could install an older version of the Bluetooth and A2DP software as the those on the HTC One do not work in my car and I cannot see BMW developing any updates and if they did, the cost could be as much as the phone.
Would appreciate any help
HTC One Bluetooth CONTACT Problem in BMW !!!SOLVED!!!
ulticomp said:
I am having the same problem.
My HTC One connects, I can make calls from the phone and the calls are clear, but I cannot see my contacts.
I have emailed HTC and they say it is the car (BMW 5 series). I have checked with BMW and there isn't an update for my car available. I am therefore, using the latest software. I previously used the HTC sensation which worked fine in the same car.
I am wondering if one could install an older version of the Bluetooth and A2DP software as the those on the HTC One do not work in my car and I cannot see BMW developing any updates and if they did, the cost could be as much as the phone.
Would appreciate any help
Click to expand...
Click to collapse
I can now see my contacts after more than a month!
I did many things, some of which I do not believe had anything to do with the process required.So I will stick with the main points and if this does not work I will include all that I can remember.
I unpaired all phones in the car (including the HTC One)
Pair the HTC One
Look out for the message BMW wants......................... contacts
Select yes
Wait for the contacts to load, this took a couple of minutes at least.
The credits goes to another post somewhere on this forum!!:crying:
have
Been trying to find out for the longest time the definite set of codecs that the One supports over bluetooth. Besides SBC and AptX, does it also support MP3 and AAC??
The reason I'm asking is that I'm coming from a (company supplied) iphone and have been generally very happy with the bluetooth audio quality to my car's audio system (Audi) and Bose Soundlink Mini speaker. I know for sure the iphone supports AAC and due to the quality suspect it is used in both cases.
The Bose at least does *not* support AptX, however getting a definite codec list for the Bose is also impossible. I only managed to find buried in the offfical bluetooth certification pages that it is a BT2.1 device.
Why do all these manufacturer's hide this documentation?
Very disappointed to find out that the Bose Soundlink Mini negotiates a link with the HTC One using SBC...
These are both premium devices for which top dollars are paid, and they still shovel this **** on me.
I'm not sure on where to place the blame here, HTC for only(???) supporting AptX next to SBC, or Bose for only supporting SBC(???)
As mentioned, both are not transparent in their devices capabilities - isn't there an app to find out these things?
Beats is at least more clear: "Bluetooth 2.1 audio and supports SBC, aptX, AAC Codecs for high quality streaming"

Kenwood DDX9902S Ordered

I ordered the Kenwood DDX9902S the other day, should arrived on the 28th and I will install on the weekend.
Going to install in my 2014 Mazda CX-5 Touring with Bose system.
I chose the DDX9902S over the DDX9702S because it's only $50 more and has 2 more bands of EQ and 2 years of warranty vs 1, and some other stuff.
I chose it over the Pioneer AVIC-4100NEX because it can do the screen mirroring and control the Phone from the touchscreen. (Though the damn Nexus 6 doesn't support video out damn it).
It is too bad the Kenwood only has 1 USB input though, and the Pioneer has TWO and also has an SD card slot. Does a USB hub work?
I'll have to do some creative wiring so I can swap out cables for card reader/etc if I want to view movies and such. The Kenwood can playback mkv files, didn't look up if the Pioneer can.
Ordered it from Crutchfield, $749 + $79 for the steering wheel control/wiring harness, free antenna and dash kit. Since it's so new, it's the same price elsewhere on the internet.
The Crutchfield Mastersheet is stupid. It only shows you how to take out factory audio unit and speakers, nothing about wiring at all. If buying stuff is cheaper elsewhere, do it.
Going to wire up my factory rear view camera to the Kenwood, from the Mazda forums, someone detailed how to do it. Got the items today and will get it prepared for next weekend to install by myself. I'll report back, I might also do a YouTube video since this unit is so new and no one has it.
What phone are u currently using???
cerobles1 said:
What phone are u currently using???
Click to expand...
Click to collapse
Nexus 6
nxt said:
it can do the screen mirroring and control the Phone from the touchscreen. (Though the damn Nexus 6 doesn't support video out damn it).
It is too bad the Kenwood only has 1 USB input though, and the Pioneer has TWO and also has an SD card slot. Does a USB hub work?
Click to expand...
Click to collapse
So you expect to mirror, instead of running Android Auto ?
Pioneer is limited in what it can do on each port. I think iPhone/iPod goes to port 2 while firmware updates and Android Auto are port 1.
In theory, anywhere a phone works, a phone plugged into a USB hub should work. But don't underestimate the need to get a quality hub and cables for reliable connections.
I have no idea if the Kenwood supports flash or other USB stuff besides a phone, and at the same time a phone is connected.
mikereidis said:
So you expect to mirror, instead of running Android Auto ?
Pioneer is limited in what it can do on each port. I think iPhone/iPod goes to port 2 while firmware updates and Android Auto are port 1.
In theory, anywhere a phone works, a phone plugged into a USB hub should work. But don't underestimate the need to get a quality hub and cables for reliable connections.
I have no idea if the Kenwood supports flash or other USB stuff besides a phone, and at the same time a phone is connected.
Click to expand...
Click to collapse
No, I will use Android Auto but would like to check out the screen mirroring too, for apps that don't support Auto / 'appradio' yet.
I've downloaded the manual and the Kenwood does support movies and music on a USB flash drive, but no mention of hubs or simultaneously connected to phone.
I just installed the DDX9702s over the weekend. It's a pretty good unit, Android Auto works flawlessly with my Sony Z3, and the external GPS makes it super accurate. Kenwood's interface is so freaking ugly though
Android Auto is also incredibly finicky on my wife's OnePlus with CyanogenMod. I flashed to 12.1 nightlies hoping to resolve some of the issues but it's no better.
The iDatalink Maestro was also fun to install, it requires taping some wires on your ODBII port. My tip there is grab a right-angle generic ODBII to Serial cable on Amazon/Ebay for $10 then cut it up and splice it into the iDatalink Meastro harness. That way you can just plug it in rather than t-taping or hard-wiring the maestro cable to your car. You can also re-pin the ODBII port as well, but splicing an extra ODBII cable seemed like the best option if I ever want to go back to stock.
jonowar said:
Android Auto is also incredibly finicky on my wife's OnePlus with CyanogenMod. I flashed to 12.1 nightlies hoping to resolve some of the issues but it's no better.
Click to expand...
Click to collapse
Doesn't start or what ? Sometimes enabling/disabling USB debugging can help with getting a phone connected.
I saw the news about 1+2 not having NFC. It appears NFC is required to trigger Android Auto over Wifi connections, so that could be an issue for the new 1+2.
mikereidis said:
Doesn't start or what ? Sometimes enabling/disabling USB debugging can help with getting a phone connected.
I saw the news about 1+2 not having NFC. It appears NFC is required to trigger Android Auto over Wifi connections, so that could be an issue for the new 1+2.
Click to expand...
Click to collapse
Yea, it won't start unless I "forget all cars" and go through the acceptance dance again then most of the time it freezes or just shows a blank black screen. I can't believe how much difference the Sony Z3 is, it works flawlessly every time.
jonowar said:
Yea, it won't start unless I "forget all cars" and go through the acceptance dance again then most of the time it freezes or just shows a blank black screen. I can't believe how much difference the Sony Z3 is, it works flawlessly every time.
Click to expand...
Click to collapse
It MIGHT be due to bad USB connections; maybe the USB port isn't tight.
Android Auto tends to freak out if USB isn't a perfect connection.
mikereidis said:
It MIGHT be due to bad USB connections; maybe the USB port isn't tight.
Android Auto tends to freak out if USB isn't a perfect connection.
Click to expand...
Click to collapse
I'm using the same cable for my Sony though, which means it's the port on the OPO which is only a few months old
I'll give it a shot with the official OPO cable just to make sure.
I guess it's time for USB C.
jonowar said:
I'm using the same cable for my Sony though, which means it's the port on the OPO which is only a few months old
I'll give it a shot with the official OPO cable just to make sure.
I guess it's time for USB C.
Click to expand...
Click to collapse
I'm not saying that it IS the port, just that it's a possibility.
I have about 15 test devices and I don't think any ports are bad, even after years of use.
I DO have cheap USB cables that are pretty bad though.
Trying other cables is the best idea I have, besides wiggling the cable a bit to see if Android Auto stops.
mikereidis said:
I'm not saying that it IS the port, just that it's a possibility.
I have about 15 test devices and I don't think any ports are bad, even after years of use.
I DO have cheap USB cables that are pretty bad though.
Trying other cables is the best idea I have, besides wiggling the cable a bit to see if Android Auto stops.
Click to expand...
Click to collapse
Hey, you were right! The OPO cable works perfectly! Thanks for the tip.
Have the same unit... Love it, look on the Kenwood website, there is a firmware upgrade for our units
Frankenberrie said:
Have the same unit... Love it, look on the Kenwood website, there is a firmware upgrade for our units
Click to expand...
Click to collapse
Awesome! thanks for the heads up, 100mb.
It says to do a reset after, is that necessary, kenwood has a ton of settings.
nxt, been eagerly waiting for your DDX9902S in depth review. Did I miss it? If so, please point me in the right direction. If not, I'd love to hear your thoughts now that you've been using it for a few months, especially if you've had a chance to compare it to the 4100NEX and from an Android perspective (mirroring vs Auto). Thanks
Frankenberrie said:
Have the same unit... Love it, look on the Kenwood website, there is a firmware upgrade for our units
Click to expand...
Click to collapse
senseimike said:
nxt, been eagerly waiting for your DDX9902S in depth review. Did I miss it? If so, please point me in the right direction. If not, I'd love to hear your thoughts now that you've been using it for a few months, especially if you've had a chance to compare it to the 4100NEX and from an Android perspective (mirroring vs Auto). Thanks
Click to expand...
Click to collapse
I wrote a pretty long review on Crutchfield but ran out of space. I ended up not making a video review because... it's not that great.
Just like any head unit, the regular UI for radio/settings/menus/audio/etc is ugly.
Anyways, here's some info going from the HU itself then Android Auto.
The Kenwood only has 1 USB. It charges your phone very very slowly, but it can charge it to 100% if you keep it connected long enough even while using Android Auto. (I do 6-7hour drives every other weekend).
1 USB, so 1 USB device connected and that's it. The Pioneers have a dedicated SD card slot, you can store music on it and leave it in there forever.
Putting about 64GB of music on a USB 3.0 Flash drive, the Kenwood took a very long time to get complete ID3 tags. So I'm forced to listen to Adele when it starts up, or manually choosing another folder before I can shuffle ALL songs.
The Kenwood supports various file formats, it can even play video files! Too bad all the .MKV files I have, no audio is decoded.
Bluetooth audio. Very little lag, steering wheel control to skip tracks almost instantly changes the tracks. My stock HU there was 2-3 second delay. ID3 tags show up properly. I primarily use Google Play Music app. I mostly use Android Auto mode when using to music though.
Bluetooth Phone. Works fine, I have a 2014 Mazda CX-5, I put the microphone where the stock microphone was. People can hear me perfectly. Android Auto voice commands have no issues hearing me either.
I have a Nexus 6 and when it was on 5.x.x, the Bluetooth Phonebook on the headunit would be SCREWED UP. No names, and just a ton of phone numbers. I installed Android 6.0 that was released a few days ago and Contacts information show up perfectly.
The Kenwood's backup camera input works really well. I can turn on the car and as the Kenwood is still booting up, if I put the car in reverse, the backup camera would be displayed! I'm pretty surprised with this and love it. The Kenwood takes a while to boot up.
The Kenwood, like most high end HUs have a TON of audio settings. I'm no car stereo buff so I mostly leave everything at default since I don't know half of what the settings mean. Each audio input has it's own audio setting which is great. My car has the factory Bose system and it sounds even better with the Kenwood.
The Kenwood has built in iHeartRadio/Pandora/Aupeo! "apps" that's supposed to work with your phone. It's junk, I've given up trying to make that work and just do regular Bluetooth Streaming.
Kenwood also has a SmartPhone control mode where if you can get your phone to video output into the Kenwood's HDMI or AV input, you can load the Kenwood App, and control your phone from the Kenwood's touchscreen, so you can use Waze or other apps directly. The app sucks and doesn't get my touches correctly. Don't rely on it, it's not reliable.
So yeah it has 1 HDMI input you can use with your iPhone using video adapter, or Android or whatever else.
It has DVD slot for movies/audio cds, I've never used it.
HD Radio. The radio interface really sucks, but it works. The way to change an HD station from HD1 to HD2 is really dumb and annoying. it has 3 different "seek" modes when you press the >> or << button. Seek1 auto scans to the next station that it can grab. Seek2 is manual seek. Then there's Auto where it changes to your next Preset.
Then there's the CHup and CHdown buttons. So if you're locked into an HD station and you want to change to HD2 you press the CHup or CHdown button, but that only works if you're in Seek2 (or maybe Seek1, I forgot), if you're not, all it does is the same as >> or <<. It makes no sense because CHup and CHdown acts EXACTLY like the >> and << buttons.
I have a ZuneHD with a special car aux box for it, I use it in AV1, works and sounds fine but when I put it into video mode I get a lot of interference. Not sure if it's the Kenwood or my aux box for it.
The Kenwood's video controls suck too. It's just hard to adjust and get proper color/brightness/etc.
At night, it's too bright, and lowering Brightness and "Blackness" levels, it gets hard to see/read the screen. So to make things clearly readable, screen has to be a little bright. There is a way to set holding Menu button and the screen will turn off until you press screen or a button.
OK Android Auto, I won't talk about Android Auto itself, there's many reviews and videos about it. I'll talk about how well it works with the Kenwood.
When it works it's great, but it's a coin toss if it'll work great on this drive, or the next.
Plug in USB cable to the phone and you're prompted to press OK on a warning screen on the Kenwood. The Apps icon turns into Android Auto.
Again, when it works, it works. Here's when it doesn't:
On my road trips, I would get into car, search the destination, and start navigation.
About 5 minutes later, Android Auto on the Kenwood would shut off and you're taken back to the main menu and the Apps icon return. Phone's Android Auto app is shutdown. There's no way to relaunch Android Auto without unplugging the USB and plugging it back in. On my last road trip, I did this about 4-5 times, then I decided to start Play Music while navigating, then it worked and had no issues. On my drive home, I started music right away with navigation and it still shutdown every few minutes. Unplugging and plugging back a few more times then it worked with no issues. It's completely random.
On my drive to work and back home, I drive through some low cell signal areas. When my phone looses signal and then catches signal back, Android Auto's screen would BLINK. Navigation wouldn't stop, music wouldn't stop, the screen would just BLINK. It's distracting.
Phone calls go through Bluetooth still, but it works well from the Android Auto screen. I'm sort of impressed how it works.
It's possible to listen to another audio source (HD Radio, CD, etc) while in Android Auto navigation, just press menu button, pick your source, then go back to Android Auto.
Android Auto I believe needs a lot of work. It's still in its infancy and the missing features and odd limitations Google has with it frustrates and confuses me.
Kenwood released a firmware update 9/17/2015.
Changelog is: Changed the specification of Volume function. Improved stability.
I hadn't noticed any improved stability.
That's all for now. Ask your questions and I'll try to answer them.
About Mirroring vs. Android Auto.
My Nexus 6 unfortunately does not support video out. I'm pretty pissed. The new Nexus 6P won't either, damn it Google!
So what I did to test was to hook up a Chromecast to the Kenwood's HDMI input.
Then I would set up my phone to be a hotspot, the Chromecast would connect to it, then I was Cast my Phone's screen to the Chromecast. Totally going in a circle LOL. (This will eat up your cell data FYI).
But it does work and my screen shows up on the Kenwood's screen.
The issue is the Kenwood's SmartPhone Control app like I mentioned in the above post.
It does not sync up properly so my touches on the Kenwood's screen, does not touch the right area of my Phone's screen.
I've never used the Pioneer 4100 so unfortunately I can't compare.
I believe that having TWO USB ports on the Pioneer and a dedicated SD card slot is BIG!
It's so annoying swapping out my Phone with a USB Flash drive.
If I were to do it again, I would probably get the Pioneer because of the TWO USB and SD card slot.
I chose the Kenwood because of the higher audio capability (EQ) and the App Mirroring (which sucks now that I've tried it), also it was cheaper than the comparable Pioneer high end model.
Hello, I ordered a DDX9702S and installed it in my '09 Civic Si. I've got a Nexus 6P and have been experiencing odd audio glitches, and I was wondering if you could test something for me.
When I play music, everything is fine until I get an audible notification or use the Voice Search. After that there is an audible buzzing/frying noise in the tweeters of my stereo when a bassy note hits. Once the noise starts, it doesn't stop until I reboot my head unit. Could you see if you have the same problem? I don't know whether it's Android Auto in general, my Kenwood stereo, or what. I've also reproduced the issue with 2 other Nexus 6P's and a Nexus 5, so I know it's not just my phone or model. I know yours is a different model, but it's worth a try to see if it's just me.
Steps to reproduce:
App to use:
Either Google Play Music All Access or Spotify
Song to use:
Rearrange by Vérité - the beginning of the song is quiet with a bassy beat, making it easy to spot the distortion / static.
Steps:
Turn on the head unit and plug in your phone (I used a Nexus 6P and a Nexus 5)
Once Android Auto is running, go to your music app and play Rearrange by Vérité. I find its easier to play the song if you add it to a playlist titled "1" (without the quotes) first, so it's at the top of your playlists.
You'll notice that the beginning of the song is quiet with a bassy beat. After about 10 seconds, hit the microphone in the top right of the screen to activate the Google Now Voice feature. Once it gives an audible beep, hit the microphone button again to cancel.
Hit back on the screen to start the song over. At this point, on my stereo, every bassy beat is accompanied by a static in the tweeters of my stereo. This happens on every song I play, even the radio, but it's much easier to hear on quiet songs like the one I gave as a suggestion to test with.
The static continues even if you disconnect/reconnect the phone. The only think that stops it is restarting the head unit by turning it off and back on. If you use Google Now again or a notification comes in and makes an audible sound, the static will come back. It seems, to me, that any notifications or audio playback from an Android device will cause the head unit to distort the sound until the head unit is rebooted. If nothing happens to cause the distortion, sound quality is stellar.
Hope you're able to test this, and thanks in advance!
DDX9702S
Sent from my Nexus 6P using XDA-Developers mobile app

Head units with android USB Audio!

TL;DR Auxillary and bluetooth have much lesser quality than USB. Video links below show stereo head units that support Android USB audio with app control for the best quality connection (Spotify, Pandora, Google Play Music via USB in your car!) These are single DIN head units without AA.
For audiophiles such as myself, auxiliary cables or Bluetooth is unacceptable when connecting to my car audio system. With these methods, the phone acts as the digital to audio converter instead of the head unit thus greatly reducing sound quality on a high end system. With a USB connection, the phone only acts as storage and a music player while the head unit acts as the DCA.
Finding head units that have a compatible USB connection to android devices has been very difficult in the past. I resorted to storing all my music on an old iPod touch to get Spotify working with my car through USB. The new Android Open Accessory 2.0 is changing that.
I have found a few of youtube videos demonstrating Android USB plug and play connection with two different modes:
App control: Spotify, Pandora, iHeartRadio, Google Play Music ect. (Yes SPOTIFY!!!)
MTP: browse local music files.
- supports basic functions such as play/pause/next/prev
- should work with android version 4.1+
- beware: some head unit models require a software update which can be installed through usb.
- warning: these videos only show connection to nexus phones, meaning if your phone isn't running google edition AOSP, it could cause problems.
- note: AOA 2.0 is different than the android audio update with lollipop, which was meant to allow connection to a separate external DCA via USB OTG.
- more info about the 3 types of android USB connection found in this thread: http://forums.androidcentral.com/an...3-will-android-l-allow-usb-audio-out-car.html
Videos with demonstration:
Pioneer DEH-X2800UI
https://youtu.be/gssbmXJ2pzw
Pioneer DEH-X3800UI
https://youtu.be/dztgOvrUnSE
Pioneer DEH-X5800HD
https://youtu.be/kReFemy4UmU
JVC KW-R910BT
https://youtu.be/h1n6WVefhKc
There are undoubtedly many other head units that support AOA 2.0, but these have video proof!
I have a Nexus 5x, I just ordered the Pioneer DEH-X3800UI for $75 on Amazon.
Ill have the head unit installed within the next week, and will give an update.
Hello Android USB Audio! Goodbye and good riddance iPod touch!
I'm hoping somebody has bought one of these headunits & can confirm how well it works.
Does it essentially work like a USB DAC would & all audio including waze, Poweramp youtube all play through the headunit and speakers?
edit: I found the answer, yes ALL audio goes through the headunit. See here:
go to 5:15
https://www.youtube.com/watch?v=ZyOh32a-cY8
TL;DR probably All head units with AOA 2.0 support that on the market right now have a clicking/micro pausing problem.
Sorry for a late response, I had to do some research, as explained below.
Now its time for the good, the bad, and the ugly!
The Good: The head unit preformed as promised, it was simple plug and play to rout all audio from the phone to the car speakers, matching Ipod via USB quality. Spotify, Youtube, Soundcloud, and even Maps navigation all worked.
The Bad: Every 5-30 seconds there is a quick high pitch clicking sound accompanied by a micro pause of the audio of about a quarter of a second. This clicking only happens with a constant audio stream such as a song, not with something brief such as a Maps navigation direction, nor when the phone is plugged in without any audio being streamed. Sometimes I would get lucky and the audio would be perfect for a couple minutes, once even for a couple songs. But when it does happen, the clicking is quite loud and high pitch and with micro pause it is easily noticeable during a normal song. I had 3 friends come listen to my "new setup" to ask them how it sounds, and all 3 of them noticed it. Unacceptable for an audiophile such as myself, so i did some research and conducted some experiments.
The Ugly: I devised a way to easily notice and keep track of the clicks. I played a low constant tone of a 40hz sine wave at high volume which made the abrupt high pitch clicks very loud (and annoying) in contrast to the low constant tone, and it made the micro pauses very obvious due to the interruption of the bass. With my phone I would hear random clicks every 5-30 seconds. I then tested 5 different android phones with various ROMs and about 10 different usb cords and many combinations of them. Clicking was reliably random. I changed kernel settings on some of the phones to see if the cpu performance was effecting it. I tried various apps such as sound about and the pioneer music app. Nothing changed.
I then went to an electronics store that had 8 head units available in store that supported Android Open Accessory 2.0. all hooked up for listening and ready for testing. There were 3 Pioneers, 2 JVC's, and 3 Kenwoods. ALL of them had the clicking problem. The Pioneers were the worst: the most frequent and loud clicks, followed closely behind by the JVC's. The Kenwoods, had clicks every 30 seconds to 2 minutes, and were about 40% less loud. I suspect that with the Kenwood head unit the average person might not be able to detect the clicking and micro pauses during a normal song, but I know i could in my high end system, especially after all this nonsense i would be passively listening for it.
Conclusion: I suspect that there is either a fundamental problem with Android Open Accessory 2.0 that causes the clicking, or the stereo manufacturers are cutting corners somewhere, or maybe some incompatibility issue with the software. I just don't know. I tried to do more research but I have found nothing online about this specific issue.
ibCurlyFry said:
TL;DR probably All head units with AOA 2.0 support that on the market right now have a clicking/micro pausing problem.
Sorry for a late response, I had to do some research, as explained below.
Now its time for the good, the bad, and the ugly!
The Good: The head unit preformed as promised, it was simple plug and play to rout all audio from the phone to the car speakers, matching Ipod via USB quality. Spotify, Youtube, Soundcloud, and even Maps navigation all worked.
The Bad: Every 5-30 seconds there is a quick high pitch clicking sound accompanied by a micro pause of the audio of about a quarter of a second. This clicking only happens with a constant audio stream such as a song, not with something brief such as a Maps navigation direction, nor when the phone is plugged in without any audio being streamed. Sometimes I would get lucky and the audio would be perfect for a couple minutes, once even for a couple songs. But when it does happen, the clicking is quite loud and high pitch and with micro pause it is easily noticeable during a normal song. I had 3 friends come listen to my "new setup" to ask them how it sounds, and all 3 of them noticed it. Unacceptable for an audiophile such as myself, so i did some research and conducted some experiments.
The Ugly: I devised a way to easily notice and keep track of the clicks. I played a low constant tone of a 40hz sine wave at high volume which made the abrupt high pitch clicks very loud (and annoying) in contrast to the low constant tone, and it made the micro pauses very obvious due to the interruption of the bass. With my phone I would hear random clicks every 5-30 seconds. I then tested 5 different android phones with various ROMs and about 10 different usb cords and many combinations of them. Clicking was reliably random. I changed kernel settings on some of the phones to see if the cpu performance was effecting it. I tried various apps such as sound about and the pioneer music app. Nothing changed.
I then went to an electronics store that had 8 head units available in store that supported Android Open Accessory 2.0. all hooked up for listening and ready for testing. There were 3 Pioneers, 2 JVC's, and 3 Kenwoods. ALL of them had the clicking problem. The Pioneers were the worst: the most frequent and loud clicks, followed closely behind by the JVC's. The Kenwoods, had clicks every 30 seconds to 2 minutes, and were about 40% less loud. I suspect that with the Kenwood head unit the average person might not be able to detect the clicking and micro pauses during a normal song, but I know i could in my high end system, especially after all this nonsense i would be passively listening for it.
Conclusion: I suspect that there is either a fundamental problem with Android Open Accessory 2.0 that causes the clicking, or the stereo manufacturers are cutting corners somewhere, or maybe some incompatibility issue with the software. I just don't know. I tried to do more research but I have found nothing online about this specific issue.
Click to expand...
Click to collapse
ok wow, I'll try to get to a shop soon& test my tablet.
I'm really hoping I can use an OTG cable + hub & then go into one of these headunits. I need the hub in my car for rear camera & SSD media drive.
s2g-unit said:
ok wow, I'll try to get to a shop soon& test my tablet.
I'm really hoping I can use an OTG cable + hub & then go into one of these headunits. I need the hub in my car for rear camera & SSD media drive.
Click to expand...
Click to collapse
Yeah OTG >> USB DAC is what im going to have to do too, unless i find a fix for the clicks.
This post could help: http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/5430#post_10929191
ibCurlyFry said:
Yeah OTG >> USB DAC is what im going to have to do too, unless i find a fix for the clicks.
This post could help: http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/5430#post_10929191
Click to expand...
Click to collapse
I do actually have a Hifimediy u2 USB DAC.
I'm hoping to go from nexus 7>otg>hub>straight into the AOA 2.0 receiver.
If not my backup will be the USB DAC into a Pioneer 80prs.
Anybody have input?
What would be better in terms of sound quality?
-The aoa 2.0 allows me USB streaming digital into HU
vs
-USB DAC (by passing internal DAC) into Pioneer 80PRS (Amazing Sound quality HU for 250$) but this will have to be done via AUX.
Does the fact I have to use AUX even matter? will it degrade the quality?
s2g-unit said:
I do actually have a Hifimediy u2 USB DAC.
I'm hoping to go from nexus 7>otg>hub>straight into the AOA 2.0 receiver.
If not my backup will be the USB DAC into a Pioneer 80prs.
Anybody have input?
What would be better in terms of sound quality?
-The aoa 2.0 allows me USB streaming digital into HU
vs
-USB DAC (by passing internal DAC) into Pioneer 80PRS (Amazing Sound quality HU for 250$) but this will have to be done via AUX.
Does the fact I have to use AUX even matter? will it degrade the quality?
Click to expand...
Click to collapse
I know using straight AUX from the device tremendously reduces sound quality due to the device acting as a crappy DAC, then sending the audio signal through the AUX to the unit.
But if it goes to a separate DAC then through AUX, i dont know. I would like to find out also
ibCurlyFry said:
I know using straight AUX from the device tremendously reduces sound quality due to the device acting as a crappy DAC, then sending the audio signal through the AUX to the unit.
But if it goes to a separate DAC then through AUX, i dont know. I would like to find out also
Click to expand...
Click to collapse
I've posted on a few car audio boards. Nobody seems to ask this in the past becasue everybody in the past used ipod via usb. Bluetooth if they dont care about quality.
I think in most cases like you said, the response was negative to using AUX but thats because of the headphone jack / internal DAC as you know.
I'm just curious like you to know how much we would loose by using AUX. Maybe some will say it's because of another D/A conversion but can anybody really tell? I'll wait for some answers.
In regards to the OP, if you have a high end car system, why not shell out for an Android Auto head unit? The data for music is sent via USB I'm pretty sure as I can tell a clear difference between my Kenwood's BT vs AA.
(I suppose flac files are an issue but you mentioned spotify, which does have AA support)
Soul0Reaper said:
In regards to the OP, if you have a high end car system, why not shell out for an Android Auto head unit? The data for music is sent via USB I'm pretty sure as I can tell a clear difference between my Kenwood's BT vs AA.
(I suppose flac files are an issue but you mentioned spotify, which does have AA support)
Click to expand...
Click to collapse
I don't get why you think he needs an Android Auto Setup?
Double DIN radio are more for toys. They don't have the EQ or processing power of single DIN's.
s2g-unit said:
I don't get why you think he needs an Android Auto Setup?
Double DIN radio are more for toys. They don't have the EQ or processing power of single DIN's.
Click to expand...
Click to collapse
Uh... I never said that he "needed" AA. I am certainly not an expert on head units and am not a claimed audiophile but based on what the requirements were, I don't see a reason why AA can't work. It is simpler to setup, includes spotify support, as well as a more cohesive and unified interface. Based on the issues getting audio over USB to work I think AA is a good alternative.
I'm not sure how DDs have less processing power but if you need such a thing, just add a DSP. I personally am fine with just an amp. Seems very extreme to claim them as toys. I wouldn't be so prejudiced...
Soul0Reaper said:
In regards to the OP, if you have a high end car system, why not shell out for an Android Auto head unit? The data for music is sent via USB I'm pretty sure as I can tell a clear difference between my Kenwood's BT vs AA.
(I suppose flac files are an issue but you mentioned spotify, which does have AA support)
Click to expand...
Click to collapse
Main reasons:
-Touch screens are difficult to operate while driving
-My car would need modifications to install a double din
-And of course the price. I do have a quite high end system, but It is extremely cost efficient.
I believe AA is a waste of money if all you care about is sound quality because the cheapest solution for usb quality app radio is still just a $70 head unit and a used ipod touch for $50.
This is what I had before I heard about these new head units that still cost $70 but allow usb connection to android with aoa so I could potentially get rid of the ipod and just use my phone, but it hasn't worked out so far lol.
ibCurlyFry said:
Conclusion: I suspect that there is either a fundamental problem with Android Open Accessory 2.0 that causes the clicking, or the stereo manufacturers are cutting corners somewhere, or maybe some incompatibility issue with the software. I just don't know. I tried to do more research but I have found nothing online about this specific issue.
Click to expand...
Click to collapse
AOA only supports 44.1 KHz sampling rate. Maybe a re-sampling issue.
To test I'd try 44.1 source material on a device that is native 44.1.
Note also that Google considers AOA deprecated and discourages it's further use. Very few people used it so Google may not bother fixing bugs, and it may not be a part of their Compatibility Test Suite..
mikereidis said:
AOA only supports 44.1 KHz sampling rate. Maybe a re-sampling issue.
To test I'd try 44.1 source material on a device that is native 44.1.
Note also that Google considers AOA deprecated and discourages it's further use. Very few people used it so Google may not bother fixing bugs, and it may not be a part of their Compatibility Test Suite..
Click to expand...
Click to collapse
Thanks for the info, ill test the sampling rate theory
And its crazy that these head units that support aoa didnt come out until mid-late last year... The stereo companies need to get on track with google and take a break from suckling the teet of Apple
ibCurlyFry said:
Thanks for the info, ill test the sampling rate theory
And its crazy that these head units that support aoa didn't come out until mid-late last year... The stereo companies need to get on track with google and take a break from suckling the teet of Apple
Click to expand...
Click to collapse
None of the shops near me have any of these HU's setup. I'll wait a 1-2 weeks for other peoples developments. If its still the same , I'll just buy a Pioneer 80PRS.
s2g-unit said:
None of the shops near me have any of these HU's setup. I'll wait a 1-2 weeks for other peoples developments. If its still the same , I'll just buy a Pioneer 80PRS.
Click to expand...
Click to collapse
Theres actually alot more than i thought, heres a more complete list:
JVC models: http://www.jvc.net/cs/car/firmware/2014/aoa/
Kenwood models: http://www.kenwood.com/cs/ce/aoa2/
Pioneer models: DEH X2800UI, X32800UI, X3800S, X4800BT, X5800HD, X6800BT, MVH X380BT
ibCurlyFry said:
Main reasons:
-Touch screens are difficult to operate while driving
-My car would need modifications to install a double din
-And of course the price. I do have a quite high end system, but It is extremely cost efficient.
I believe AA is a waste of money if all you care about is sound quality because the cheapest solution for usb quality app radio is still just a $70 head unit and a used ipod touch for $50.
This is what I had before I heard about these new head units that still cost $70 but allow usb connection to android with aoa so I could potentially get rid of the ipod and just use my phone, but it hasn't worked out so far lol.
Click to expand...
Click to collapse
Indeed that is a good point. My unit basically cost the same as what I paid for my speakers and amp. I wish you luck on finding a solution!
With more research i concluded that in the following connection:
Device > USB OTG > DAC > AUX > Head Unit
The aux will not effect the sound quality, but this connection will only be on par with USB if the external DAC is capable of grater or equal sound quality of the Head Unit DAC, AND if the AUX cable is of good quality as well.
That being said, i also concluded that depending on the bit rate of the audio, and the quality of your hardware, bluetooth quality might be indistinguishable from USB, especially in the sound environment of a car. But you would have to test that yourself.
I will be going for the external DAC
ibCurlyFry said:
With more research i concluded that in the following connection:
Device > USB OTG > DAC > AUX > Head Unit
The aux will not effect the sound quality, but this connection will only be on par with USB if the external DAC is capable of grater or equal sound quality of the Head Unit DAC, AND if the AUX cable is of good quality as well.
That being said, i also concluded that depending on the bit rate of the audio, and the quality of your hardware, bluetooth quality might be indistinguishable from USB, especially in the sound environment of a car. But you would have to test that yourself.
I will be going for the external DAC
Click to expand...
Click to collapse
I have one more shop to check out this week hopefully. I want to test these AOA 2.0 headunits myself with otg cable + usb hub to see if I can still control the tabelt via headunit + test for the problems you had.
s2g-unit said:
I have one more shop to check out this week hopefully. I want to test these AOA 2.0 headunits myself with otg cable + usb hub to see if I can still control the tabelt via headunit + test for the problems you had.
Click to expand...
Click to collapse
sounds good
Just note the problems i had were occurring when i connected to a AOA 2.0 compatible head unit only via USB (USB A to micro USB).
Not with USB OTG or a USB hub. Idk if it works that way, but let me know

snapchat audio issues?

Hello! Just seeing if you guys can test this out for me and report back your findings.
Have snapchat open
Have music playing on your phone via any source but connected to your car via the 3.5mm jack. (I'm using google play music specifically)
Record a full video and then unplug your aux cable to see if your video has sound or not.
I do a lot of driving through pretty scenic areas and have a handful of people who enjoy watching my videos because of the places I drive. However I've noticed that when I'm playing music via the aux jack my videos have no sound. This is the first Android device I've had does this and what worries me is that it's a hardware issue and not a software issue. The reason I suspect that is because the only other devices I know that can't do this are ios devices before the iPhone 7. If you guys would be willing to test this out I'd appreciate it. I've reinstalled snapchat and checked the permissions and can't seem to find the underlying issue. Also searching for the issue with the note 8 or the s8/+ yields no results. Thanks.
saboture said:
Hello! Just seeing if you guys can test this out for me and report back your findings.
Have snapchat open
Have music playing on your phone via any source but connected to your car via the 3.5mm jack. (I'm using google play music specifically)
Record a full video and then unplug your aux cable to see if your video has sound or not.
I do a lot of driving through pretty scenic areas and have a handful of people who enjoy watching my videos because of the places I drive. However I've noticed that when I'm playing music via the aux jack my videos have no sound. This is the first Android device I've had does this and what worries me is that it's a hardware issue and not a software issue. The reason I suspect that is because the only other devices I know that can't do this are ios devices before the iPhone 7. If you guys would be willing to test this out I'd appreciate it. I've reinstalled snapchat and checked the permissions and can't seem to find the underlying issue. Also searching for the issue with the note 8 or the s8/+ yields no results. Thanks.
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Check if the 3,5 plug you are using has two or 3 rings or bands, if so, means that the cable is also passing the mic to your stereo, thats the reason you have no audio captured by the mic
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