Dear Eric and list,
I have a Teac UD-H01 (I assume that you are talking about that one). It
works fine at 16bits/any frequency but I have crackles (much like you
are reporting) in 24bit mode (at any frequency over 48kHz). I am not
much of an expert (in particular, I'm at loss concerning 24 bit
playback) so I am not sure I can help.
In any case, the 16 bit modes worked "out of the box" on Fedora 18
running a 3.11 series kernel, on USB 2 as well as on USB 3 ports. I did
learn though that pulse-audio can be a pain when testing your interface:
it will transform any stream to a default format so you never know
exactly what your DAC receives. The upshot is that you should test
things using aplay, after disabling pulse. If you are already doing this
you may have a look at the thread "teac UD-H01, bad 24 bit playback" for
details. If your problem persists when playing a 16 bit file through
aplay, we could try to figure out in what way your setup differs from
mine.
Best,
Rutger.
On jeu., 2014-01-23 at 18:37 +0100, Eric Favre wrote:
> Hello,
>
>
> Since I have plugged my new Teac UH-HD01 via USB, I have some
> crackles.
>
> It can be one per album played or dozens.
>
> I have tried different USB ports (for now I'm on the USB3.0
> controller, less crackles)
>
> I have tried with different high quality USB cable, without luck.
>
> By reading the mailing list, someone can use it without any issues at
> 16bits/44.1KHz.
>
> That's what I need (I play FLAC music).
>
>
>
> I use Archlinux 64, kernel 3.10.27 LTS, latest version of alsa.
>
> ********************************************************
>
>
> Here is my /etc/asound.conf :
>
> pcm.!default {
> type hw
> card 0
> }
>
> ctl.!default {
> type hw
> card 0
> }
>
> ********************************************************
>
>
> Here is what dmesg says when a crackle arrives (some anytime) :
>
> janv. 23 18:23:09 pumpkin kernel: delay: estimated 0, actual 95
> janv. 23 18:23:09 pumpkin kernel: delay: estimated 0, actual 94
> janv. 23 18:23:09 pumpkin kernel: delay: estimated 2, actual 95
>
> ********************************************************
>
>
> Please help me, now we know that this evil Teac DAC can work like a
> charm via async USB at 16bits/44.1KHz.
>
>
> Feel free to ask for whatever you need, you will get it ;)
>
>
> Thank you,
>
>
> Eric
>
>
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