Develop Bugs

HTC Desire - USB audio output possible

Hi Devs,
first of all, sorry for starting a new thread, but searched the forum and didn't find exactly that.
Like I've read, there is no audio over USB support built-in to our mighty Desire.
I tried a few different microUSB to 3.5mm jack adapters from ebay - even one declared as for HTC Desire. Checked the usb-pins-assignment also and it seems that HTC hasn't built in (or turned off) that function in opposite to some other manufacturers.
So will it be possible to write a rom or a kernel, that'll support that?
If it is possible, I would appreciate a few hints what I'll have to do, to get this thing working!
Thanks in advance!

Can I know why you need that? Is it for A/V out?

brianius said:
Hi Devs,
first of all, sorry for starting a new thread, but searched the forum and didn't find exactly that.
Like I've read, there is no audio over USB support built-in to our mighty Desire.
I tried a few different microUSB to 3.5mm jack adapters from ebay - even one declared as for HTC Desire. Checked the usb-pins-assignment also and it seems that HTC hasn't built in (or turned off) that function in opposite to some other manufacturers.
So will it be possible to write a rom or a kernel, that'll support that?
If it is possible, I would appreciate a few hints what I'll have to do, to get this thing working!
Thanks in advance!
Click to expand...
Click to collapse
Its not possible to send analog audio signal over the usb since its a standard usb plug. Only the old htc phones with extUSB had audio, but its was a bigger plug with more pins.
On that note i dont get why you want to get audio from there, when theres a nice 3.5mm jack socket on the top of the phone.

mr.r9 said:
Can I know why you need that? Is it for A/V out?
Click to expand...
Click to collapse
Thanks for your quick answers!
Yes, since there are no music docks for desire I built my own and it has to be possible, other phones with microUSB have that function - why not ours?
I know the old extUSB plug from my magic, there it is no problem. But there must be a way to get this working! I think it is only a software and/or driver issue.
If you'll get a music dock you'll have to plugin the phone + jack everytime? ? ? Look on ebay there are a few universal docks over microUSB, but not working for the nearly best and most sold android phone on market?
Pls give me some hints if there is a way to do that - everything is possible!
Sent from my HTC Desire

brianius said:
Pls give me some hints if there is a way to do that - everything is possible!
Sent from my HTC Desire
Click to expand...
Click to collapse
Umm, well not really. Because who says that the USB port of your phone is connected the right way internally to actually SEND data over the cable/dock.
I have no idea on how to do it. Thats just what I think, but with Android, a LOT is possible

prodygee said:
Umm, well not really. Because who says that the USB port of your phone is connected the right way internally to actually SEND data over the cable/dock.
I have no idea on how to do it. Thats just what I think, but with Android, a LOT is possible
Click to expand...
Click to collapse
YEAH IT IS!
On Nexus one they built in extra pins for docking and audio over that works like a charm.
I'm having a few adapters microUSB to 3.5mm jack for Motorola,Samsung,Nokia...phones from ebay, but not one reaction from Desire
Maybe the adapter for Desire needs a Digital-to-analog converter to get analog audio out of the microUSB port.
But no technical details over that from HTC - does anyone know more about the microUSB connections on our Desire? Tried to get a technical manual for Desire, but no chance on google...
If there is no other solution, I'll have to disassemble my expensive Desire to get a view on connections and maybe some hints which IC is managing the microUSB.
Does any dev know what would be possible by modding a kernel or rom?
Thanks in advance!

mr.r9 said:
Can I know why you need that? Is it for A/V out?
Click to expand...
Click to collapse
im also looking for something like this, though i want digital-audio out. for example in my car, plug and play so i get spotify from my usb to my stereo and able to control spotify from my stereo. there is no problem for this if you use iphone, though id like to be able to do it on my htc.
any solution?

Ability to stream out the audio through USB would be something nice to have.

There's a guide online on how to splice a USB and 3.5mm cable to the Apple USB cord so that you can charge and play audio on ipod accessories, as long as you don't mind having USB and audio plugged in at the same time. http://www.erwanmace.com/2012/07/ipod-dock-android/

[Q] use H2 zoom as an external mic?

So I have this h2 zoom and I was wondering if there is any way of connecting it to my galaxy to record things with the stock video player. Is there some way to connect it through the headphone jack or maybe even usb? Usb would be preferable but I realize the stock camera has its limitations when it comes to external audio.
here is an audo only thing but i want video
http://betanews.com/2012/12/22/now-you-can-record-to-your-android-device-via-usb-audio-interface/
would this work? (see bottom post)
http://forum.xda-developers.com/showthread.php?t=1493170
there is also this
http://android.stackexchange.com/questions/19368/how-do-i-use-an-external-microphone-with-my-galaxy-nexus
Today i have made some progress in this question. On iPhone you can buy a iRig Mic which can do the job (and it should work on android too). But since i want to use another external microphone i have decided to make the adapter myself from some different adapters (which does the same thing as iRig Mic, but with a female 3.5 mm jack output, so i can use my wireless microphone with it)
Click to expand...
Click to collapse
let me know if you have any experience with this stuff.

[Q] USB OTG host mode for digital audio out

I have been searching here and at Head-fi, and I cannot find an answer to my problem. I cannot seem to get sound out from my S4 over my OTG cable. I have a DAC/Amp that many have trued and report that my DAC/Amp is plug-n-play, no mods, no other apps needed. I have used this DAC/Amp to get digital audio out from my Galaxy Note 10.1, again totally plug-n-play. Here is the link to the cable I bought - is it possible that this might be the wrong cable somehow? I have tested this cable and it does work with a USB thumb drive on my S4. I also looked up and found one post that said to enable digital audio out by going to settings-my device-accessory and checking the "audio output mode" box. Didn't work. I tried making sure I turned on the system sound, etc. Nada. Where do I go from here? I have been on the thread that lists all the DACs and DAC/Amp that work with all the various Android devices, and my my and my device (Leckerton UHA-6S mk II) are on the list, and I have been on threads where people are using the combo I have. Please help! I would love to know what I am doing wrong/missing/defective so I can get this working. Thanks!!

Is your kernel stock? I had to revert back to stock kernel from ktunez in order for OTG to work with my external DAC.

My kernel is stock.

bump

FIXED!
We are fixed!
It was the obvious thing. The cable was defective. I just got two other cables from Amazon (very cheap). They both work perfectly immediately. The are both from different vendors, but they are both the exact same cable. They are different from the original in one way: the micro USB portion that plugs into the Galaxy S4 is much longer than the defective one. I don't know if that means anything, but there it is. Thanks to everyone for your help, especially DanBa who took extra time and effort to help me. Thanks!

[Q] HDMI out through amp?

Hey guys,
So I have a M919V (from Videotron) and I just bought the official Samsung MHL 2.0 HDMI adapter. I previously bought a cheapo one from Monoprice and I couldn't get any sort of video out of it even with the 11-pin adapter. I tried with my old S3 and that wouldn't work either, so I got a defective one.
So now, yay, it works, and I can have HDMI out straight to my TV, but I'd really love to plug it into my amp instead, as I could get surround sound and such. Strangely enough, when I do plug the HDMI cable into my amp, my phone shows "Plug the phone directly into the TV".
Is there a way to enable the HDMI out through an amp? I'm *guessing* this has something to do with HDCP or whatever, but I kinda doubt it (my PS3 is full HDCP and still functions quite well through HDMI) so I'm really wondering what's going on with this.
I'm on stock rooted.

I recommend just using a headphone jack to plug into an amp. I haven't seen any mods that allow for hdmi on audio devices yet. There could be one, but I haven't seen it, do a quick search on xda.
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I am here to help and provide knowledge to help others with there problems/issues. If you do have a question don't be afraid to shoot me a PM and I will help you and put you in the right direction to the best of my ability and will get your problem and/or issue solved.
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'Murica said:
I recommend just using a headphone jack to plug into an amp. I haven't seen any mods that allow for hdmi on audio devices yet. There could be one, but I haven't seen it, do a quick search on xda.
~~~~~~~~~~~~~~~~~~~~~~~~~
I am here to help and provide knowledge to help others with there problems/issues. If you do have a question don't be afraid to shoot me a PM and I will help you and put you in the right direction to the best of my ability and will get your problem and/or issue solved.
~~~~~~~~~~~~~~~~~~~~~~~~~
Click to expand...
Click to collapse
That's a possible solution, true. I'll have to give that a shot... It really sucks, I'd be stuck with stereo anyway. My ultimate goal is to be able to stream videos from my PC to my phone and output to my TV, which would negate the need for any sort of weird device.

[Q] USB Audio..

Hello guys!
I've just bought a Nexus 7 to integrate in my car dashboard. Actually I didnt had so much knowledge about it before I bought it, (I only wanted the best and I hate apple so) but I didnt thought it was junk. And that's the only thing I wanted, a non junk tablet that could play music and works as a navigator without hardware-buttons.
My old stupid Iphone 4s worked perfectly for playing and streaming sound from spotify trough a regular usb cable to my headunit, so I didnt even reflect that googles new flagship wouldnt be able to do this simple task. But it seems like it doesnt work..
I've searched for answeres but the only thing I can find is to buy a usb DAC that converts the digital audio to analog audio but then I lose the whole damn point. I want digital audio in to my headunit. And my stupid old Iphone do it great, why the **** can't google flagship do it? Feels like I have bought a extra thin rock from the stone-age.
Please tell me I'm wrong and this is possible somehow. Otherwise I gotta throw this stupid f***** sh*t tablet in the garbage as fast as ******* possibly..
Sorry for my rage.. I just feel so fooled.. I've just bought a 400$ angry birds game. :silly:

You have a couple of options:
1. Use headphone output jack from your Nexus. Hopefully your car audio headunit has an auxiliary input.
2. Bluetooth! This is what I use in my car. If your car audio headunit has bluetooth built-in, then you don't need any cables at all. Just pair your car audio to your Nexus and start playing music! If your car stereo does not have bluetooth, then you need to purchase a bluetooth car kit. These connect to an auxiliary input on your car stereo (just like #1 above). There are bluetooth kits that also stream through an FM modulator, but that should be used as a last resort as sound quality suffers materially.
I installed an Alpine bluetooth car kit and integrated it with my factory car stereo system in a 2005 Honda Accord. Since I did not get the factory CD Changer option, I had that one input open to use with the Alpine Bluetooth. I'd post a link to my YouTube video showing this, but I'm now allowed to post links yet since I'm new to this forum.
The two options listed above are the only ones I'm aware of. I'd love to hear from others if there are other options. The only drawback to both options is that you use the DAC built in the Nexus, you don't get to pass through to a better quality external DAC. The only way around that is a Slimport adapter which uses HDMI. I don't know of any car audio units that have HDMI inputs.

What you want is achievable. Nexus 7 2012 works best with Timur Kernel however Nexus 7 2013 with an AOSP build or stock with Elemental X kernel can have a USB DAC with an OTG Y cable that will simultaneously charge.
If you have Cyanogenmod you may need glitch kernel which does the same thing.
I have a HiFiMeDIY DAC and OTG Y cable (at home) but no reason I couldn't run the same thing in my car with a car charger.
John

I use a fiio e7 on USB and it works perfectly on cm or carbon, no extra apps or kernel required. By the way, otg works fine with Franco kernel on either Rom and hotswapping is supported. I have not yet found another rom that supports it, but I have been using just carbon for quite a while now.
Sent from my HTC_Amaze_4G using xda app-developers app

Some car head decks support android USB then it would charge and do audio. Just make sure it's android compatible.
Good, then we shall fight in the shade!

dobbs3x said:
Some car head decks support android USB then it would charge and do audio. Just make sure it's android compatible.
Good, then we shall fight in the shade!
Click to expand...
Click to collapse
Well i can tell u most of those android compatible r meant can be connect n read as a mass storage,but not as ios.
Unless someone can make a custom rom like the one for 2012 model.

Has anyone tried USB audio on 4.4 yet? I recall reading they were making some changes to USB devices (may of just been mounting drives though).
I

Still no USB-OTG in kitkat
miketunes said:
Has anyone tried USB audio on 4.4 yet? I recall reading they were making some changes to USB devices (may of just been mounting drives though).
I
Click to expand...
Click to collapse
Just tried it. USB-OTG does not work on stock, unrooted 4.4. Neither flash drives nor USB Audio

Old-school said:
Just tried it. USB-OTG does not work on stock, unrooted 4.4. Neither flash drives nor USB Audio
Click to expand...
Click to collapse
When u guys saying otg works dor aosp or some kernel ,does that mean it works with an otg y cable aswell? Like reading files from flash n keep it charge while with flash drive on?
Sorry for the thread jack op.
U and i r on the same boat,i am doing a car mount too.
I am doing a 4g lte one.

I don't have a car, I have a scooter.
Problem fixed !

So it sounds like if I have the stock rom, with the elemental X, I can do USB audio? Do I need some kind of audio manager to specify where to send the output, or would the USB dac automatically disable the on-board headphone jack?

tried PAC rom 4.3 with elemental X 1.8
no go for the DAC audio.
sound is mute no matter what i do.

katsooba said:
tried PAC rom 4.3 with elemental X 1.8
no go for the DAC audio.
sound is mute no matter what i do.
Click to expand...
Click to collapse
so no-go on the PAC rom, but stock should work?

hagensieker said:
What you want is achievable. Nexus 7 2012 works best with Timur Kernel however Nexus 7 2013 with an AOSP build or stock with Elemental X kernel can have a USB DAC with an OTG Y cable that will simultaneously charge.
If you have Cyanogenmod you may need glitch kernel which does the same thing.
I have a HiFiMeDIY DAC and OTG Y cable (at home) but no reason I couldn't run the same thing in my car with a car charger.
John
Click to expand...
Click to collapse
I bought the HifiMeDIY DAC and am using stock 4.4.2 w/ Elemental X Kernal. I don't get any sound out of the dac. What did you have to do to enable the USB sound instead of built-in speakers?

The Nexus 7 is way better than you described it.
You have lots of options for car audio, and they all have downsides, but just to name a few:
Bluetooth (if your car has a bluetooth receiver)
Auxiliary input (if your car has one)
Slimport (you'd need an hdmi-audio converter, but it would sound great)
Wi-Fi direct (not very common for cars, though)

bmccoy11 said:
The Nexus 7 is way better than you described it.
You have lots of options for car audio, and they all have downsides, but just to name a few:
Bluetooth (if your car has a bluetooth receiver)
Auxiliary input (if your car has one)
Slimport (you'd need an hdmi-audio converter, but it would sound great)
Wi-Fi direct (not very common for cars, though)
Click to expand...
Click to collapse
Bluetooth (if your car has a bluetooth receiver) - I need the bluethooth to connect to other things, like an odb adapter and so on. Edit: The bluethooth connection doesnt always connect automatic whit the cars headunit either so that's another problem.
Auxiliary input (if your car has one) - The aux output aint that great, not good enough for my 3500$ audio system in my car.
Slimport (you'd need an hdmi-audio converter, but it would sound great) - Yes the problem is that I need to convert the audio to analoge. It needs a converter and it still doesnt give my headunit digital audio.
Wi-Fi direct (not very common for cars, though)- I use wifi to get my cars 4g connection to the Nexus 7
So in my case. This is just a really expensive angry birds game (Without sound)!