Headphone Interference - HD7 General

I've noticed whilst gaming on the train using my HD7, I sometimes get interference in my headphones. It sounds like mobile static (dit dit-dit-dit etc).
Does this happen on all HD7's (maybe when reception is fluctuating)? I would be very interested to hear whether this happens (or not) from other HD7 owners. Thanks!

Any long conductor is susceptible to radio-frequency interference. In fact, headphone cables are so susceptible to it that your phone uses the cable as an aerial for FM radio reception!
Personally I use bluetooth headphones so don't get the problem. It does mean I can't use the FM Radio function but to be honest I can't say I miss it. On the plus side, I get hands-free calling all the time.

I have that same problem with my speakers whenever im getting a call or text on any phone that is on my table my speakers start to make noise 2-3 seconds before the phone starts ringing.
but ive never had that problem with headphones.
Jim Coleman said:
Any long conductor is susceptible to radio-frequency interference. In fact, headphone cables are so susceptible to it that your phone uses the cable as an aerial for FM radio reception!
Personally I use bluetooth headphones so don't get the problem. It does mean I can't use the FM Radio function but to be honest I can't say I miss it. On the plus side, I get hands-free calling all the time.
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Click to collapse
Whenever im using my Bluetooth headphones and pass through a scanner like the ones at libraries or airports my headphones start to make a high frequency noise.

I just got my HD7 as a replacement for my Venue Pro and am hearing the interference in my headphones that I've never had on any other phone.
It sounds like what my computer speakers would sound like when I had Nextel and a call would be coming in. I only notice this between songs.

Related

poor audioquality with BT headset

i experience very bad soundquality sometimes when i talk with my bluetooth headset, i feel like its somekind of signal issue, because when i have my phone in my pocket it sounds horrible sometimes, but when i hold it in my hand its much better, is there a way to fix this?
I don't think there is a way to fix it. I have the same problem with my Nokia BT headset. The thing is, that it (the headset) has so weak signal, that the phone must be like 60cm from the headset to provide good enough signal. If the phone is in a pocket, it gets even worse.
It was the same with my old Nokia N95 and with my X1, so I think it's a headset problem. Btw my X1 is just an idea better connecting to the bluetooth headset than the N95.
I will suggest you buy a new headset, but you test it first on your X1, to see how good the signal strength is.
Experiment to find out which side your headphone's BT transceiver is on, and then keep the phone on that side of your body.
i have tried like 4 different headsets since i got the phone, first i had two cheap ones from jabra, and recently i have had two different types from plantronics, they have been a little bit better but not as good as i think it should be late 2009.
pimmen said:
i have tried like 4 different headsets since i got the phone, first i had two cheap ones from jabra, and recently i have had two different types from plantronics, they have been a little bit better but not as good as i think it should be late 2009.
Click to expand...
Click to collapse
Check the settings of the 'Audio' tab from the Bluetooth settings.
Change the bitpool setting to 58 and test the sound quality of your BT set again.
I changed it using a stereo BT headset and noticed a great improve in sound quality.

Speech Quality with Headset/Car Stereo

I don't really know how to explain...
I use my Nexus one in my car for calls.
I use a jack cable which is plugged into the radio. So I can hear my partner over the speaker in the car. Very good.
But, the others can't understand me. It's crappling all over.
When I put the cable out of the jack and use the normal hands free on the phone, everything is fine and the others understand me very well.
By plugging into the car radios jack, it starts with crappling my voice again.
Does anybody have the same problem? Or is it fine on your Nexus all the time?
Formel-LMS said:
I don't really know how to explain...
I use my Nexus one in my car for calls.
I use a jack cable which is plugged into the radio. So I can hear my partner over the speaker in the car. Very good.
But, the others can't understand me. It's crappling all over.
When I put the cable out of the jack and use the normal hands free on the phone, everything is fine and the others understand me very well.
By plugging into the car radios jack, it starts with crappling my voice again.
Does anybody have the same problem? Or is it fine on your Nexus all the time?
Click to expand...
Click to collapse
sounds like the phone might be trying to find a microphone in the radio
Yes, could be. But why? What can I do?
It was very cool when somebody can try it, if it works on other NexusOne.
well the default headphones had a speaker in them so the jack is made to work as a speaker jack and a mic jack. however im not sure why it is expecting a mic when there is no information being sent back to the phone.
Simple expanation, I think - noise canceling functions.
When you're in speaker mode, it's settings are probably changed to account for a voice coming from a distance and being roughly equal for both mics, while when in regular mode it's working and expecting significant signal difference. When it doesn't get it - since you're speaking from a distance - it doesn't "think" you're talking, and cancels your voice partially as it would cancel outside noise.
There is a hack somewhere in General or Dev section, how to disable noise canceling. You might try.
OK, when I find it.... Sounds good

Bluetooth solution for my car?

Hey, when I search the forums for bluetooth a2dp I get overloaded with ROM posts.
I really wanted to ask someone here if they use any kind of bluetooth thing to connect to their car and play music.
I've found a couple things thru google, but none got good reviews.
here is 1
http://www.amazon.com/Scosche-motorMOUTH-Bluetooth®-Bluetooth-reception/dp/B001AVSWEE
I don't want voice dialing or anything like that, just something to play music in my car wirelessly.
Help!!
Unless you're willing to pay out the nose for some decent speakers, you're probably better off buying an fm transmitter and using your car speakers.
The problem is there isn't much of a market for what you're wanting, and sometimes its difficult for battery powered speakers to overcome road noise while not destroying sound quality. If you're bent on this notion though, take a look in outdoor wireless speakers. They will most likely not only be cheaper but have more oomph in them than a "car" bluetooth speaker.
generic.imitation said:
Hey, when I search the forums for bluetooth a2dp I get overloaded with ROM posts.
I really wanted to ask someone here if they use any kind of bluetooth thing to connect to their car and play music.
I've found a couple things thru google, but none got good reviews.
here is 1
http://www.amazon.com/Scosche-motorMOUTH-Bluetooth®-Bluetooth-reception/dp/B001AVSWEE
I don't want voice dialing or anything like that, just something to play music in my car wirelessly.
Help!!
Click to expand...
Click to collapse
Why don't you post what type of car and what type of car radio you have to begin with? Best route to go is to get an addon that is specific to your radio, or buy a new head unit all together that includes BT built in.
This is what I've been looking at: http://www.amazon.com/Kensington-LiquidAUX-Bluetooth-Remote-Phones/dp/B0011UIX2K/ref=sr_1_12?ie=UTF8&s=wireless&qid=1278794237&sr=8-12
Can anyone say how the sound quality of A2DP really is? Is it equal to the line out?
I did a search, because I was curious myself on what you could use and I found something on ebay that may be worth looking into.
For the price, you can answer calls and you can stream your music as well from what it says.
http://cgi.ebay.com/Car-MP3-Bluetooth-Phone-FM-Transmitter-SD-MMC-USB-/270598232508?cmd=ViewItem&pt=Other_MP3_Player_Accessories&hash=item3f00e959bc
seanmcd72 said:
Why don't you post what type of car and what type of car radio you have to begin with? Best route to go is to get an addon that is specific to your radio, or buy a new head unit all together that includes BT built in.
Click to expand...
Click to collapse
I have a 2007 scion tc with the stock radio. The car has a power port, ipod dock and a line in aux port inside the center console. I usually run the line from my phone in the dock to the line in port. I can power a bluetooth receiver from inside my console, so I would really just want a receiver if it sounds good. Fm receivers sound horrible, hoping that a2dp sounds better.
pardonmyfreedom said:
This is what I've been looking at: http://www.amazon.com/Kensington-LiquidAUX-Bluetooth-Remote-Phones/dp/B0011UIX2K/ref=sr_1_12?ie=UTF8&s=wireless&qid=1278794237&sr=8-12
Can anyone say how the sound quality of A2DP really is? Is it equal to the line out?
Click to expand...
Click to collapse
I was looking at that as well, I might get it. I also would like to know the sound quality of a2dp.
Thanks everyone for the help and replies!
Man I miss my TC, I loved that car..... Anyway, I find the quality is good for being wireless. I guess it could always be better I would rather use a cable, but you cant beat wireless streaming. I like that device pardonmyfreedom posted about, think I will def get one of those.
ckirkp79 said:
I did a search, because I was curious myself on what you could use and I found something on ebay that may be worth looking into.
For the price, you can answer calls and you can stream your music as well from what it says.
http://cgi.ebay.com/Car-MP3-Bluetooth-Phone-FM-Transmitter-SD-MMC-USB-/270598232508?cmd=ViewItem&pt=Other_MP3_Player_Accessories&hash=item3f00e959bc
Click to expand...
Click to collapse
I would stay away from FM transmitters for streaming music...****ty quality. Often sounds muffled and distorted not to mention inconsistent. Often switching between channels to find the best quality and then five mins it sounds like hell again...
My 2007 Prius has a line-in jack right next to a 12V DC input in the center console. I've tried numerous solutions, figuring that anything I use will be nicely hidden away in the center console. Unfortunately it seems that anything you plug into 12V DC will give you horrendous sound.
I have not gone so far as to find and try out something that is powered off AA batteries, but it would be an interesting test to show whether or not the DC adapter is what's killing sound quality.
For reference, I tried the Nexus One multimedia desktop dock (when I had an N1) and a Belkin unit which I should have known better as anything with the Belkin name on it sucks.
The other issue for me is that even if the sound was crystal clear and perfect, Android 2.1 (and I'm willing to bet 2.2 as well) will not auto-connect to A2DP. Only headset or hands free profiles. So I'd end up spending a minute getting the thing setup before even going anywhere. Too much hassle for anything but a 30+ minute drive.
FWIW, I have the Kensington LiquidAUX Bluetooth Car Kit.
2007 Honda Element, Aux/12V plug on the passenger side dashboard (roughly 4 feet away).
See: Amazon.com: Kensington LiquidAUX Bluetooth Car Kit with Remote for Music Phones: Cell Phones & Service
MP3 and music audio sounds pretty clear, though audiophiles will be disappointed. I'm used to listening to internet radio and satellite radio, so audio quality only needs to not hiss and pop for me to be happy. Besides, my car has a boat load of road noise, so no biggie.
Call quality sounds crisp for the incoming portion, as in I can hear the other party loud and clear. Unfortunately, the other party has a hard time hearing me. If you know what the speaker phone gives the other party in terms of call quality, imagine it being SLIGHTLY softer sounding to them. So, I can hear them perfectly fine, but they have a slightly harder time hearing me (compared to me being on speakerphone, and they on regular headset). Being closer to the microphone doesn't improve anything, and I could be 1 foot from the microphone or 5 feet from the microphone. It sounds the same to them regardless. They describe me as sounding muffled. Speakerphone already sounds muffled, and bluetooth with the Kensington sounds softer and still muffled.
The remote is a nifty feature, too. It controls the native audio player for play/pause/fwd/rwd. It also controls Slacker for play/pause/skip. AWESOME! Voice dialing doesn't work (though I hope FroYo fixes this).
Overall, I'm happy with the product and will use it while driving and simply speak a bit louder and slower while on the phone. Maybe FroYo will improve call quality enough to make this a better headset, but at least it's great for bluetooth audio playback.
Sorry, no pictures as of yet, because it's dark. I'll try to remember to take some tomorrow.
motorokr t505
motorokr t505 FTW.
Looked around with no luck. Was wondering if there are any reports of the OTA leak solving some of the BT issues.
+1 for the Motorola T505. I've been using mine for well over a year, and I love it.
Here are some photos of the Kensington LiquidAUX
http://androidforums.com/accessorie...w-kensington-bluetooth-liquidaux-car-kit.html
I have a Arkon car dock. Could I plug in my Liquid AUX in my cig lighter under my arm rest, and just dock my car with my ARKON car dock?
I have the one just like the one from ebay. Very happy with it just a few limitations, the bt has to be connected manually reach time
Pause and play don't work on all apps. Volume had to be down a little on the phone to get it to stop over saturation. But then its clear, loud pauses when in a call (have a plantronics975 for the phone)
Sent from my ADR6300 using XDA App
pardonmyfreedom said:
This is what I've been looking at: http://www.amazon.com/Kensington-LiquidAUX-Bluetooth-Remote-Phones/dp/B0011UIX2K/ref=sr_1_12?ie=UTF8&s=wireless&qid=1278794237&sr=8-12
Can anyone say how the sound quality of A2DP really is? Is it equal to the line out?
Click to expand...
Click to collapse
It's very good. No difference between it and the line out directly.
I just removed the "calling" part of it so I could keep a bluetooth headset (for calling - plantronics pro) from the bluetooth profile - works perfectly.
-D
Yeah, I got the liquid aux one and disabled the phone part too. I use tasker with it to turn bluetooth on automatically when I pop it into the car mount. I am loving the bluetooth sound, same as line in.
Sent from my DROIDX using XDA App
Anyone know of a widget or some other way for my phone to connect to my bluetooth? It doesn't connect every time, I have to dig into the settings and connect manually 50% of the time.
pardonmyfreedom said:
This is what I've been looking at: http://www.amazon.com/Kensington-LiquidAUX-Bluetooth-Remote-Phones/dp/B0011UIX2K/ref=sr_1_12?ie=UTF8&s=wireless&qid=1278794237&sr=8-12
Can anyone say how the sound quality of A2DP really is? Is it equal to the line out?
Click to expand...
Click to collapse
I have the LiquidAUX installed in my Z. For some extra punch, I also installed a Boostaroo between the LiquidAUX and my Sat Input. I think the audio quality is quite good. However, My ears aint what they used to be, and I do have a really nice BOSE system in the Z, so those two factors have to be considered.
The LiquidAUX connects to my DInc as soon as I start the car, so it seems well integrated. The only manual step I have is to launch Slacker, which I listen to exclusively.
One thing that needs to be fixed is, when I initiate a call via bluetooth, Slacker is not automatically muted, so the music really screws up the voice recognition. I have to pause Slacker before I initiate the call. I'm sure this will be fixed at some point, seeing how voice dialing just started working with 2.2.
All in all, I'm pretty please with how this setup works, and I have no issues with audio quality.

[Q] Audio and video out of synch when using Bluetooth - any suggestions?

Hello all.
I'm having problems with Bluetooth on my One. The device that I'm trying to use with it is called a Siemens MiniTek. (It's actually a hearing-aid accessory. You clip to the front of your shirt - it looks a bit like an MP3 player - and it plus my hearing aids together then function like a Bluetooth headset. So, when making a call, the sound is sent wirelessly to the hearing aids, and the device itself has a microphone on it.)
Making a call with it works okay; but if I try to use it to get audio out of my One in other conditions (playing a game, say, or watching downloaded video) then the video and audio are always badly out of synch - the sound lags at least one second behind the picture.
I'm using the stock HTC ROM, the latest one available in the UK (2.24.401.8).
Anyone have any thoughts as to why this might be happening and what I can do about it?
Mby there is too much data to deliver via bluetooth (high quality audi/video sound) and the hearing aid device is not meant to recive such a load.
When calling to some1, the sound quality is only like 24kbps or something.
Just a thought
Rendoqoz said:
Mby there is too much data to deliver via bluetooth (high quality audi/video sound) and the hearing aid device is not meant to recive such a load.
When calling to some1, the sound quality is only like 24kbps or something.
Just a thought
Click to expand...
Click to collapse
That might result in there either being no sound at all or in the sound quality being very poor, but I don't see that it would result in reasonable-quality sound running 1 second behind the picture...?
The device itself is designed to handle fairly high quality sound: as well as receiving Bluetooth signals it can take analogue audio input via a 2.5mm stereo jack socket, and it also has a separate "base station" transmitter which you can plug into (say) the headphone socket of your TV: the transmitter then sends a signal wirelessly to the MiniTek (using a proprietary version of Bluetooth) and the MiniTek relays it to the hearing aids. Using either the direct-line input or the wireless transmitter works quite nicely, and there's no perceptible lag problem there.
I should have said, I've been onto Siemens tech support about it, and they're adamant that it shouldn't be doing this, and they don't know why it is. So I'm looking for a problem at the phone end.
Shasarak said:
I should have said, I've been onto Siemens tech support about it, and they're adamant that it shouldn't be doing this, and they don't know why it is. So I'm looking for a problem at the phone end.
Click to expand...
Click to collapse
i've experienced the same issues on various BT-Receivers and Smartphones. Seems to be a general issue. So far, this 1 second lag was present on all combinations of:
Phones: Samsung Galaxy S2 / iPhone 4 / HTC One
Receivers: Creative D100 / Creative D200 / Belkin BT Adapter
As i found out so far, this problem occours when the receiver can't handle the apt-x codec and audio has to be resampled to the older SBC codec. Found one thread kinda dealing with this topic, but haven't tried it out for myself at the moment. I'll do some testing later when i'm at home.
http://forum.xda-developers.com/showthread.php?t=1256407

Bluetooth question, use phone mic instead of car radio mic

Bluetooth works fine in my car as it should. However, the mic that came with the car's headunit makes me sound like a metal robot and makes it almost impossible to have a conversation. I can hear the person I'm calling just fine over my car's speakers. If I switch to speakerphone, I sound a million times better to the person as my phone is mounted on the dash, but then I can't hear them because of road noise and weakness of the phones speaker.
So my question is this. Is it possible to still use bluetooth but to be able to bypass the radio's mic to use the note's mic and have the person I'm talking to still come out of my car's speakers? I understand using an aux cable would probably work like this, but I'd rather have it work with bluetooth. as its one less thing to plug in.

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