Database Users

[Q] Audio over USB with Android 5.0

I know there have been threads in the past about the Nexus 4 not being able to support outputting audio over USB, but now that stock Android 5.0 supports it, can the Nexus 4 do it?
I'm using the factory 5.0 images and I have an external DAC/amp that I want to use (Fiio e18) that's made for Android, but nothing seems to happen when I hook it up. I've read posts that the Nexus 4 physically can't output power over it's USB, which is fine because the DAC has it's own battery source... but can it at least output the audio?
I started with the stock kernel, but also tried the latest Franco kernel (r214) with no luck. Also, I verified the DAC itself works by using it with my laptop. I'm hoping there's just some hidden setting or patch I need to apply to get it to work... Has anyone else tried this yet?

kerb12 said:
I know there have been threads in the past about the Nexus 4 not being able to support outputting audio over USB, but now that stock Android 5.0 supports it, can the Nexus 4 do it?
I'm using the factory 5.0 images and I have an external DAC/amp that I want to use (Fiio e18) that's made for Android, but nothing seems to happen when I hook it up. I've read posts that the Nexus 4 physically can't output power over it's USB, which is fine because the DAC has it's own battery source... but can it at least output the audio?
I started with the stock kernel, but also tried the latest Franco kernel (r214) with no luck. Also, I verified the DAC itself works by using it with my laptop. I'm hoping there's just some hidden setting or patch I need to apply to get it to work... Has anyone else tried this yet?
Click to expand...
Click to collapse
pls report your findings if you can make it happened!!
i can not help you with your problem but it is something that interest me too. i only can suggest to use a more feature enabled kernel like unleashed or hells core
pls report your findings if you make it work mate!

That's a good idea... unfortunately no dice with the latest unleashed kernel either (98u). It claims it supports USB OTG, so I was hoping that would be enough, but maybe there's more that needs to be done.

kerb12 said:
That's a good idea... unfortunately no dice with the latest unleashed kernel either (98u). It claims it supports USB OTG, so I was hoping that would be enough, but maybe there's more that needs to be done.
Click to expand...
Click to collapse
one thing that you might not know. nexus 4 does support usb otg BUT cannot provide electricity via usb. you must use a y cable and provide external power so you it might not be possible to use your DAC!

Thanks, I did know that, but I figured that since my DAC is self-powered (it has its own battery) that I wouldn't need to do the y-cable trick.
Worth a try though, I'm going to order one and see if I can at least get regular USB OTG to work. Maybe once that's working it'll be easier to troubleshoot the audio.

Just wanted to update, I got the Y OTG cable so I could have external power at the same time... but still doesn't work. This is with stock 5.0.1 and unleashed 98u kernel. I went into Synapse and enabled the OTG setting as well. DAC doesn't get recognized, and I tried a few free apps that are supposed to do OTG checks, but they all came back that nothing is attached.

Usb otg is one thing and uab audio out is another. USB otg means that you can connect an USB stick or external hdd to your phone ( with or without external power) USB AUDIO OUT need special circuits from your internal Dac to the USB. If those are not implemented you will never have USB audio out. This is something witch depends on the manufacturer ( S4 mini with snapdragon 400 don't work with USB otg or USB audio out, htc mini 2 M8 works perfectly with fiio E18 as a audio surce for external DAC). So if you really need USB audio out please next time do your homework and read before buying a phone. P.S. Htc mini 2 M8 has the best audio ever and really you don't need an external dac. If you need more power just use your fiio as an amplifier with your phone.
Maybe you could find for your phone a apecial kernel modified for better audio experience. Flash that and use your headphones.
Good luck!

Thanks, yeah I don't need usb audio out... I've had the phone for over 2 years and I still really like it, so no plans on getting a new one just for this.
I believe it's physically possible to do audio out on the N4... I've seen random posts about people getting it to work, but they've all been on custom ROM's based on 4.4.x stuff. I'd really rather not try to reproduce that since 5.0 is running so much better on my phone, and I was just hoping with the new native Android support it might work out of the box. But alas, it looks like google locked down 5.0 on the N4 - even USB OTG storage doesn't work unless you put a custom kernel like unleashed on.
In the meantime, I've just been using it as a headphone amp like you suggest and it's a big improvement.

[Q] CM12 and MHL with HLTE - Anybody done it?

Hi folks,
I have CM12 running on my Note 3 (temasek's build however for the purpose of this problem I don't see it matters vs standard HLTE CM12 variant).
When I plug in my Samsung MHL 2.0 adapter into my phone. Back on CM11, everything worked, audio and 1080p video via HDMI worked no problem.
With CM12 however, I get only video. No audio is being transmitted over HDMI. It still comes out of the loudspeaker of the phone.
Is there a potential setting I've overlooked or something new in Lollipop/CM12 that broke audio over MHL?
Anybody worked with this themselves or found a way around? Or is this just a bug in CM12?
Thanks,
Sam

SonicSamZ said:
Hi folks,
I have CM12 running on my Note 3 (temasek's build however for the purpose of this problem I don't see it matters vs standard HLTE CM12 variant).
When I plug in my Samsung MHL 2.0 adapter into my phone. Back on CM11, everything worked, audio and 1080p video via HDMI worked no problem.
With CM12 however, I get only video. No audio is being transmitted over HDMI. It still comes out of the loudspeaker of the phone.
Is there a potential setting I've overlooked or something new in Lollipop/CM12 that broke audio over MHL?
Anybody worked with this themselves or found a way around? Or is this just a bug in CM12?
Thanks,
Sam
Click to expand...
Click to collapse
Report it as a bug. Cm12 is still in "beta" state.

Dragonfly Red DAC - Can I get it to work with Meizu Pro 5?

Hello guys!
I've recently bought an Audioquest Dragonfly Red USB DAC to use with my tablet and smartphone. If I connect the DAC to the Meizu Pro 5, I do get a notification "USB audio - Output audio form the usb sound card". However, there is no sound at all, in none of my music apps. Neither Tidal, nor the stock player not USB Player Pro. Is there any way to get it to work with Flyme OS? (unfortunately updating won't work, somehow the user before me is still logged in, updates don't work - so I'm currently stuck with Flyme OS 5.1.2.0 OG. Phone is rooted though).
Would it work if I rooted to a CM rom?
Any help is really appreciated - thanks!

svemo89 said:
Hello guys!
I've recently bought an Audioquest Dragonfly Red USB DAC to use with my tablet and smartphone. If I connect the DAC to the Meizu Pro 5, I do get a notification "USB audio - Output audio form the usb sound card". However, there is no sound at all, in none of my music apps. Neither Tidal, nor the stock player not USB Player Pro. Is there any way to get it to work with Flyme OS? (unfortunately updating won't work, somehow the user before me is still logged in, updates don't work - so I'm currently stuck with Flyme OS 5.1.2.0 OG. Phone is rooted though).
Would it work if I rooted to a CM rom?
Any help is really appreciated - thanks!
Click to expand...
Click to collapse
Bootloader locked or unlocked ?

st0rm77 said:
Bootloader locked or unlocked ?
Click to expand...
Click to collapse
in Fastboot mode, it says its locked.
However, I got the Dragonfly to work with UAPP now.
I used USB Host check and used the fix with root permission. After I rebooted, I can now use the DAC with USB Player Pro (UAPP). However, I still wonder if it would work natively in Tidal etc. if I used another ROM, as Flyme OS disables all volume control in the system as soon as its connected. UAPP works, because it can access the hardware volume of the Dragonfly..

svemo89 said:
in Fastboot mode, it says its locked.
However, I got the Dragonfly to work with UAPP now.
I used USB Host check and used the fix with root permission. After I rebooted, I can now use the DAC with USB Player Pro (UAPP). However, I still wonder if it would work natively in Tidal etc. if I used another ROM, as Flyme OS disables all volume control in the system as soon as its connected. UAPP works, because it can access the hardware volume of the Dragonfly..
Click to expand...
Click to collapse
Ohh nice, you got it working.
Download alsamixer from the playstore, i think you can select in/output in the shell when installed, but im not sure. Its been a while

st0rm77 said:
Ohh nice, you got it working.
Download alsamixer from the playstore, i think you can select in/output in the shell when installed, but im not sure. Its been a while
Click to expand...
Click to collapse
thanks! I already looked up a tutorial on the dragonfly thread on head-fi, however, i didn't get alsamixer to work yet. but that's also due to me possessing no programming skills whatsoever

svemo89 said:
thanks! I already looked up a tutorial on the dragonfly thread on head-fi, however, i didn't get alsamixer to work yet. but that's also due to me possessing no programming skills whatsoever
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Does it improve the sound quality compare to pro5 standard headphone jack?

Will oneplus2 supports type c headphones???

Anybody tell me please...

I hope, it'll support. Because previously I used Le-Echo type c earphones and they worked. But sound wasn't good enough.

Yes it does but I would avoid using them on a OnePlus device the USB c ports are poor quality and break easily. Your cables will end up just falling out.

USB C headphones never worked for me, not on Lollipop Oxygen OS nor in Lineage 15.1 I am currently on. I have used Leeco headphones to try. They seem to light up, but no sound. I can even control / skip tracks by the button on the headphone. I have read somewhere that plugging it in and enabling OTG makes it work? Not sure how to do that in Lineage 15.1. I think its enabled by default.
Would appreciate if someone who know it works @Ryus71, @yogeshsharmagamerz tell how?
Thanks.

androidarena said:
USB C headphones never worked for me, not on Lollipop Oxygen OS nor in Lineage 15.1 I am currently on. I have used Leeco headphones to try. They seem to light up, but no sound. I can even control / skip tracks by the button on the headphone. I have read somewhere that plugging it in and enabling OTG makes it work? Not sure how to do that in Lineage 15.1. I think its enabled by default.
Would appreciate if someone who know it works @Ryus71, @yogeshsharmagamerz tell how?
Thanks.
Click to expand...
Click to collapse
I never managed to get otg to work on the oneplus 2 on LOS or stock

Out of everything it looks like OTG was never intended to work or be supported

I know this is kinda old thread, but I tried Leeco USB C headphones with my OP2 running Lineage OS 17, latest weekely (26 December 2020 build) and I can get awesome music from them!
So somehow they seem to be working now, as previously they did not work on stock or even PE / LOS roms.

Will USB DAC work plug and play on Android Q ?

I just bought a USB DAC and i spent last few days to find a workaround for it to work on android Pie, because the "Audio source" option is gone for god knows why. I was going to downgrade to Oreo but all of the link for the Oreo Custom Rom is already disabled by devs.
Luckily i found a way to make it work but only with my music player, it still doesn't make a sound on other app. And it have some serious problem with the volume too, so I'm stil trying to look for alternative.
Does anyone tried using a USB DAC on android Q ? Does it work plug and play ? 'cos I've confirmed the "Audio source" option is still missing in android Q. I just want to use this darn thing man.