Please don't let down... Feel free to ask whatever you need...

Yours sincerely,

Eric

2014/1/12 Eric F 3rik.gm@gmail.com

Hello,

Been searching for days on Internet for this issue, without luck :(

I own a Teac UD-H01 : when connected via USB => crackles and clicks

optical => no problem I want to use it as USB because it's asynchronous, so only a few jitter

I've tried many kernels (3.12.7, 3.12.6) and the LTS that I use normally (3.10.25, 3.10.26) : not solved

I've tried on a fresh ArchLinux install : no way I've tried Xubuntu : not better (plus they use pulseaudio) I've tried on my desktop's Arch Linux

I'd like to know if any of you have a patch or a fix for the Tead UD-H01 DAC when used via USB

Thanks

P.S. I've tried all availavle USB ports on my Arch, not better

2014/1/12 Eric F 3rik.gm@gmail.com

...

Hello,

Been searching for days on Internet for this issue, without luck :(

I own a Teac UD-H01 : when connected via USB => crackles and clicks

On Sun, Jan 12, 2014 at 04:43:06PM +0100, Eric F wrote:

Been searching for days on Internet for this issue, without luck :(

I own a Teac UD-H01 : when connected via USB => crackles and clicks

Which tool are you using in userspace to test this? Did you try aplay?

optical => no problem

I'm confused. According to

http://www.teac.com/product/ud-h01/

there is no optical output. Are you saying things only work if you connect an optical input?

Are you absolutely sure that you're not dealing with analog audio distortion? IOW: did you try the very same setup with a different OS?

I want to use it as USB because it's asynchronous, so only a few jitter

I don't follow. According to the device specs, USB is the only option to connect this thing?

I've tried many kernels (3.12.7, 3.12.6) and the LTS that I use normally (3.10.25, 3.10.26) : not solved

I've tried on a fresh ArchLinux install : no way I've tried Xubuntu : not better (plus they use pulseaudio) I've tried on my desktop's Arch Linux

I'd like to know if any of you have a patch or a fix for the Tead UD-H01 DAC when used via USB

The device exposes itself as USB audio v2 interface, so it should work out-of-the-box. What's interesting is that there are two clock sources, but only one is connected in the topology (bCSourceID = 12), and there is no clock selector. Crackles could be related to wrong clocking, but that's just guessing.

Please check whether the device works under Windows or Mac OS X.

Daniel

Mick wrote:

It is an issue of the TE8802 but can be fixed by a driver patch as discussed here: http://www.head-fi.org/t/609062/te8802-asynchronous-dacs-on-linux-and-squeez...

What patch? As far as I can see, that page discusses a firmware upgrade.

Regards, Clemens