solution interface 2.5mm jack from XDA to 3.5mm standard - MDA, XDA, 1010 Accessories

on internet site I got the below mentioned specification:
This adapter converts the proprietary 4 conductor Pocket PC Phone Jack to a 3.5mm standard stereo headphone jack while enabling the internal microphone. The adapter cable is approximately 3" long. It can also be used to convert the iPAQ 1900 series 2.5mm jack to a 3.5mm stereo output jack.
my question is what "the proprietary 4 conductor Pocket PC Phone Jack" look like and is it different from standard 2.5mm ???
regards, monika

Answer is here:
http://pdaphonehome.com/forums/showthread.php?threadid=5690
regards,

thank you very much
pretty extensive reading ... but very precise af far as it comes to describing varius cable options - that's what I wanted
regards, monika

Related

headphones for wallaby ?

I cannot find original headphonesh, is there any similar ?
Custom Wallaby Headphones
I broke my original Wallaby headphones and like you, i wasn't able to find a "replacement". What you can do is to purchase a good quality headphone / headset. They come in the standard 3.5mm jack which doesn't fit the Wallaby. Buy a 2.5mm stereo jack adaptor which you will connect to your Wallaby and connect the 3.5mm headphone there.
O2 XDAII (Himalaya) headsets may work too. I think all HTC devices have compatible headsets. Enjoy!
The original XDA I/Wallaby stereo headsets are on eBay.
Please search for:
genuine xda handsfree headset
or click here:
http://search.ebay.co.uk/search/search.dll?satitle=genuine+xda+handsfree+headset
Best wishes
Mobilez

Type C to 3.5mm possible?

Is that possible to use the type c to 3.5mm converter for 7 plus?
why?! you have 3,5 mm jack
I have a HTC Usb to 3.5mm adaptor that I used on my HTC U ultra and it works great with the Nokia 7 plus as well.
I think the audio is louder using the adaptor and better quality.
Danchibald said:
why?! you have 3,5 mm jack
Click to expand...
Click to collapse
because the sound quality from the 3.5mm is so poor
I have huawei p20 headphones also with usb-c and these are better than anything else.
spender1 said:
I have a HTC Usb to 3.5mm adaptor that I used on my HTC U ultra and it works great with the Nokia 7 plus as well.
I think the audio is louder using the adaptor and better quality.
Click to expand...
Click to collapse
Want to know does it worths to buy the adaptor just for sound quality improvement?
That's a difficult question as I always find audio a very personal thing.
I have just tried my Akg K451 headphones with both the audio jack on the phone and the HTC adaptor.
The HTC 3.5 mm adaptor is significantly louder than the audio jack at full volume. I notice some distortion in the audio jack that is absent on the HTC adaptor. I think the audio from the adaptor is fuller and far more pleasing to my ear.
I have no idea how these things work, for instance does the HTC adaptor have its own DAC or is it simply a pass through device? The difference in audio level would suggest to me the presence of its own DAC so maybe that would account for the difference in audio .
Maybe it's worth buying the adaptor just to drive certain headphones better. I have a pair of status audio headphones at home that I normally use with a headphone amp to drive them I will try them on the 7 plus later to see how they sound with the audio jack and the adaptor.
Sorry I can't be more definitive.
By the way the HTC adaptor is around £10 in the UK direct from HTC.
Is the sound quality and volume really that bad or is it just some specific/batch units?
I listen to a lot of audiobooks on the go and it would be a shame if this was a dealbreaker.
No I don't find the audio particularly bad and most of the time it is loud enough.
Most of the time I use the 3.5 jack and don't have a problem but when I'm sitting listening to music and doing nothing else I prefer the audio from my HTC adapter.
The volume will depend on the impeadence of the headphones used, my AKG headphones are always much louder than my status audio ones when used in the same device.
lhkakex said:
Is that possible to use the type c to 3.5mm converter for 7 plus?
Click to expand...
Click to collapse
I think it can,I used a Xiaomi's type-c headset that can be used
Quite strangely, My Mi A2's USB-C to 3.5 adapter DOES NOT WORK with my Nokia 7+

Jack Audio - USB C dongle, which one I have to buy?

Hi mates, there are different dongles in the market, some of them are really cheap, others definely not! I've also see schemes, some dongles have internal DAC and amplifer, others just connect some pins of the USB-C to the audio jack. I've lost mine and I've to buy one, which is the right choice?
Thank you
Barabba11 said:
Hi mates, there are different dongles in the market, some of them are really cheap, others definely not! I've also see schemes, some dongles have internal DAC and amplifer, others just connect some pins of the USB-C to the audio jack. I've lost mine and I've to buy one, which is the right choice?
Thank you
Click to expand...
Click to collapse
I bought and used Baseus L54. It has an internal DAC, sounds great and everything is working (remote buttons, mic) .
Thank you for your kind answer, just for info, do you exclude adapters without dac and directly connected to usb?

Question Issue in plugging earphone

I just bought a USB type C-to-3.5mm adaptor (Xiaomi brand) and plugged into S21u using my existing earphones such as Sony, Realme and Huawei. None of them is working. It says "USB is not supported". I do not want to use Type C earphones as all my other mobiles and laptops use 3.5mm jack. Any solution?
The adapter must have an inboard DAC.
Newer Samsung phones output in digital only, no analog.
Use the Samsung C port/3.5 mm adapter.
Better yet get a pair of Buds+, at the very least you'll want them for calls.
Finally, got myself a basic type C earphone made by Samsung (costs 27 USD) rather than an adapter with built-in DAC. The sound is rich in mid and high but lacks bass compared to my existing 3.5mm earphones.
I had the same earphones, single driver, no bass at all, totally worthless. Replaced them with these which are very good. Samsung no longer offers them but can be found in South Korea on eBay. Contrary to the video the price is down to around $70 USD. Not as good as the 1MORE Quad Driver which requires an adapter.

Question S21U not compatible with usb to 3.5mm dongle?

I just tried my xiaomi usb to 3.5mm dongle on my S21U and it said usb device is not recognised.
Is this normal?
Is there "hacks" for rooted s21u?
Use the Samsung one...
kan ikke lide usb mods fra software.
60% is not working
My Apple branded one works. It feels super flimsy though.
vegetaleb said:
I just tried my xiaomi usb to 3.5mm dongle on my S21U and it said usb device is not recognised.
Is this normal?
Is there "hacks" for rooted s21u?
Click to expand...
Click to collapse
Does the USB-C to 3.5mm dongle have a DAC converter chip inside? Some phones don't output analog audio natively through the USB-C port and require a digital to analog conversion which are supported by some external adaptors. Maybe that model device doesn't output analog audio via the USB-C?
zpunout said:
Does the USB-C to 3.5mm dongle have a DAC converter chip inside? Some phones don't output analog audio natively through the USB-C port and require a digital to analog conversion which are supported by some external adaptors. Maybe that model device doesn't output analog audio via the USB-C?
Click to expand...
Click to collapse
Yes, this is the correct answer to the OP's question. You need a DAC USB-C not a simple USB-C to 3.5mm adapter. Such adapters retail for around $50+ the better the DAC the higher the price.
Thanks
Well I will only use my good Mpow M30 bt
It works with 3.5mm dongle
amirage said:
Yes, this is the correct answer to the OP's question. You need a DAC USB-C not a simple USB-C to 3.5mm adapter. Such adapters retail for around $50+ the better the DAC the higher the price.
Click to expand...
Click to collapse
Just bought a 32bit/384kHz sampling one for 8$ on Aliexpress...and before you tell me I can't hear difference between this and a 16bit one...let me tell you..I DO.
I got a 3$ DAC onw and while good for calls, I can definitely tell the difference for music.
And yes, I have the Huawei adapter that came with a Mate 20 Pro ( remember the times when power adapters,cables and 2.5mm jack converters came with phones???) and it's not recognized by the S21U.
Don't curse me for the idiotic link below..I can't shorten it from the ios app:
US $8.72 37% Off | KEYSION HIFI DAC earphone Amplifier USB Type C to 3.5mm Headphone Jack audio adapter 32bit 384kHz Digital Decoder AUX Converter
US $8.72 37% Off | KEYSION HIFI DAC earphone Amplifier USB Type C to 3.5mm Headphone Jack audio adapter 32bit 384kHz Digital Decoder AUX Converter
star.aliexpress.com
you need one with a DAC
Ipse_Tase said:
Just bought a 32bit/384kHz sampling one for 8$ on Aliexpress...and before you tell me I can't hear difference between this and a 16bit one...let me tell you..I DO.
I got a 3$ DAC onw and while good for calls, I can definitely tell the difference for music.
And yes, I have the Huawei adapter that came with a Mate 20 Pro ( remember the times when power adapters,cables and 2.5mm jack converters came with phones???) and it's not recognized by the S21U.
Don't curse me for the idiotic link below..I can't shorten it from the ios app:
US $8.72 37% Off | KEYSION HIFI DAC earphone Amplifier USB Type C to 3.5mm Headphone Jack audio adapter 32bit 384kHz Digital Decoder AUX Converter
US $8.72 37% Off | KEYSION HIFI DAC earphone Amplifier USB Type C to 3.5mm Headphone Jack audio adapter 32bit 384kHz Digital Decoder AUX Converter
star.aliexpress.com
Click to expand...
Click to collapse
You will surely hear the difference between a 16bit and 32bit sampling. It's very likely Huawei adapter may not have a DAC on board as my OnePlus 7Pro adapter didn't have one. My contention was not about the price - $50 for a DAC adapter. The point I was trying to make was that you needed an adapter with a DAC..the better the DAC onboard the better your music will sound. It's all personal taste...and if an $8 DAC does the job...good for you!
One day, in the future, phone technology will be so advanced that they will have DAC built in.
use the OEM from samsung ... i did buy a couple with the option to charge at the same time and they didn't work. Saddly you need a one with build-in DAC onto the Type-C to 3.5mm adapter. The cheapest one is the OEM from samsung.... sucks but thats it.

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