Develop Bugs

[Q] HTC One X USB OTG audio not working on CM 10.2

Can somebody please tell me what's wrong with USB audio out on this phone? It used to work on stock ROMs. I have a USB OTG cable connected to FiiO E17 (USB DAC), but the sound still comes out from the phone speaker. I have installed ALSA, and checked alsa_aplay -l in Terminal, the phone cannot recognize the DAC, but it works when I use the app "USB audio recorder pro". Are there some drivers missing in CM10.2 (Android 4.3.1)?

hy3301 said:
Can somebody please tell me what's wrong with USB audio out on this phone? It used to work on stock ROMs. I have a USB OTG cable connected to FiiO E17 (USB DAC), but the sound still comes out from the phone speaker. I have installed ALSA, and checked alsa_aplay -l in Terminal, the phone cannot recognize the DAC, but it works when I use the app "USB audio recorder pro". Are there some drivers missing in CM10.2 (Android 4.3.1)?
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Sorry to bump this but I have just come across the same issue, just wondering if you found a solution?

BustaVR6 said:
Sorry to bump this but I have just come across the same issue, just wondering if you found a solution?
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Turns out to be a bug in CM. You have to pay $10 to buy USB audio palyer pro to get it work. Upside is that this app can handle Hi-res up to 24bit 192khz.

[Q] lollipop and dac

When my Tab S 10.5 was running Kit Kat, it worked perfectly with my hifimediy Sabre dac. I was very excited when I auto-updated to Lollipop, which did seem to help battery life, speed, etc. It's just that the Dac stopped working. It clearly recognizes the device. Sounds even come out of it, it's just badly distorted and starts and stops.
Is this a lollipop problem or do Ihave to see if hifimediy will write a driver for lollipop? Is there any way to solve it other than going back to kitkat?

chancelucky said:
When my Tab S 10.5 was running Kit Kat, it worked perfectly with my hifimediy Sabre dac. I was very excited when I auto-updated to Lollipop, which did seem to help battery life, speed, etc. It's just that the Dac stopped working. It clearly recognizes the device. Sounds even come out of it, it's just badly distorted and starts and stops.
Is this a lollipop problem or do Ihave to see if hifimediy will write a driver for lollipop? Is there any way to solve it other than going back to kitkat?
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Click to collapse
I just posted a similar thread - hadn't spotted yours sorry otherwise would have added to it (just found yours by doing a google search)
I have a Fiio E17 which worked flawlessly on both my Note 3 (Snapdragon chipset) and Tab S 10.5 with 4.4
with 5.02 Lollipop no longer works with my Tab S (haven't dared upgrade my Note 3)
very very annoying

I have a Fiio E17 and I tried connecting it to my 10.5 after upgrading to lollipop and almost busted my ear drums. I haven't tried connecting it before upgrading, so I am not sure if it worked before, but it sure as hell ain't working now. The sound comes out completely distorted.

I just bought an Oppo Ha-2 and doest work with the Lollipop Tab S 10.5
Any workaround to this yet?
There's an option in Developer Options to Prevent routing to USB peripherals. I made sure that's unchecked. I checked USB Debugging. Still the same.

Tab 8.4 same problem with use of External DAC
I just purchased a Tab S 8.4 ( Lollipop) and tried to use an external DAC ( Audio Engine D3) via OTG cable . There is power to the DAC but no sound . So I installed Onkyo Player , now I get sound but its horrible with lots of distortion. I have not tried the USB Audio Player Pro yet.

USB Audio Player Pro is the answer to this, excellent player and worth the £5.80 it costs, i had the same issue with the Galaxy Alpha and this was the only way i had it working perfectly.
https://play.google.com/store/apps/details?id=com.extreamsd.usbaudioplayerpro&hl=en_GB

I have the same problem on an Samsung Galaxy S2 on 12.1 and the last Gustavo Kernel.
Using USB Audio Player Pro did not help as it reports "Failed to submit USB transfer! Your device probabyl does not support for isochronous USB transfers".
Also it does not detect the "HiFimeDIY Sabre Android DAC" only the larger "HiFimeDIY Sabre USB DAC ES9023 96kHz/24bit".
Anyone managed to make it run on any Kernel? What Kernels have you been using? The stock Kernel?

hydrouk said:
USB Audio Player Pro is the answer to this, excellent player and worth the £5.80 it costs, i had the same issue with the Galaxy Alpha and this was the only way i had it working perfectly.
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I just tried the demo version today. It worked like a charm the first time . This seems to be the only player that works with my Audioengine D3 with no stutter etc and also no external power is required . I am going to buy the App.

5.1.1 USB Audio problem (in and out) with multiple otg devices

My N7 is being used as a car headunit. I'm having a usb audio issue with multiple devices. With an OTG y cable, I am running an easycap and a UCA 202 w/an amped mic into the inputs. Everything works fine before the easycap is powered. When I swtich intro reverse, video shows up fine. When I shift out of reverse and the easycap powers off, all audio will only play from the internal speakers and I get "Can't open microphone". I have to either reset or dis/reconnect the otg y cable to fix the problem.
I am able to preserve usb audio out if I use the "easycap viewer" app but I cannot get the mic to work at all with the easycap unpowered after the first connection. Mic and audio work fine up until the easycap is powered on for the first time. Interestingly, the Mic will only work when I am in reverse. I figured this out while parked and testing--not really reasonable to shift into reverse on the highway to make a voice command .
Is there a flashable fix? An app? Any workaround?
Appreciate the help. Thanks.
Rom: Stock (LMY48X)
Kernel: Timurs v3 final (I have reached out to the developer and he said that his kernel does not modify the stock android handling of usb audio since it was built into lollipop)

T800 - No USB Sound

Hello,
Not sure how much you guys experiment with external audio gear
Basically i have been trying to send sound through external audio interfaces (USB OTG compliant sound cards)
and not able to do so on the TAB S
I can see when device connected (OTG compliant device) , sound stops coming out of speakers and redirected to USB, no sound is actually coming out
only one very old very simple usb sound card stick that worked
It is not powered issue as all the one's i tested (Pioneer Wego 3 for example) have own power source
I tried with Kitkat 4.4 , stock rom 5.0.2 , CM 12.1 5.1.1, Marshmellow 6.0.1 nothing works
I would love some insight maybe suggesting different rom or kernel
Thanks

USB C music not working

Hello,
My USB-C headphones both stock and another (from huawei) don't work anymore on my note 10+
When i connect them, nothing happens, it's only showing "Android system- USB connected" in the notification panel
Music's playing through the phone speaker. Only the bluetooth is working, and i can use DEX with a HDMI dongle without problem
I tried a dirty flash (keeping my data), without success.
What can i do ?
Thank's in advance.

Deleted

maxime4611 said:
Hello,
My USB-C headphones both stock and another (from huawei) don't work anymore on my note 10+
When i connect them, nothing happens, it's only showing "Android system- USB connected" in the notification panel
Music's playing through the phone speaker. Only the bluetooth is working, and i can use DEX with a HDMI dongle without problem
I tried a dirty flash (keeping my data), without success.
What can i do ?
Thank's in advance.
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Click to collapse
Check Developer Options to see if USB Audio routing is enabled/disabled.

Thank you very much that was the fix, I didn't know I checked that option by error.
Have a nice day! ?

Seem problem
I have this problem I check disable audio routing
Not work for me plz help me guys