Re: Teac DAC, I've read someone can make it work fine via USB 16/2/44100, but NOT ME...

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Hello,

The Lord finally shew me the way ^^

I used to put all my alsa configuration files in /etc/asound.conf

For a reason I can't explain, it works when I put it in ~/.asoundrc !!!

Here is the config file that I needed  :

**********************************
pcm.!default {
    type hw
    card 0
}

ctl.!default {
    type hw          
    card 0
}

pcm.primary {
    type hw
    card 0
    device 1
}

**********************************

No more nightmares now :D
Plays perfectly 16/44.1 via USB (3.0)

Thanks for your help !

Eric


2014-01-24 Rutger Noot <rutger.noot@xxxxxxxxxxx>
Hi,

Oddly (and fortunately!), in my case the TAEC works (at 16 bit) with all
linux boxes I tried, but at 24 bits it functions only under windows
(with the proprietary driver). With all linux machines I tried, 24 bits
playback give rise to this clicking.

One other thing: the kernel messages you got.

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

I don't have these on 16 bits playback (no crackles) but they show up
when playing 24 bits (and it clicks). So they are likely to be related
to the problem, but it would take someone (much) more knowledgeable than
me to understand what this means exactly.

PS. Do you have any other usb devices that might be consuming
bandwidth ?

Best,
Rutger.

On ven., 2014-01-24 at 21:37 +0100, Eric Favre wrote:
> Hello,
>
>
> I've tried with my laptop, on a usb 2.0 port : crackles
>
> I didn't try on its USB3.0 port yet
>
>
> I have tried on my desktop (where my DAC is) : usb2.0=> lots of
> crackles; usb3.0 => a few crackles
>
> ... But still crackles
>
>
> I've jsuted reinstalled a fresh Arch on my Desktop, with minimal
> packages, and kernel 3.12.8, DAC on USB3.0 port : crackles :(
>
>
> I've installed Fedora 18 (updated so same kernel as you) and I have
> crackles
>
>
>
> Now my last chance is the Teac plugged in the USB3.0 port of my
> laptop. If it works, then... Oh
>
> I feel desperate...
>
>
> Thanks,
>
>
> Eric
>
>
> 2014/1/24 chris hermansen <clhermansen@xxxxxxxxx>
>         Eric and list;
>
>
>         On Fri, Jan 24, 2014 at 5:17 AM, Eric Favre
>         <e.j.favre@xxxxxxxxx> wrote:
>                 Rutger,
>
>
>                 I thank you, I now have hope that mine will work :)
>                 (yep, it's a Teac UD-H01).
>
>
>                 I'm running Archlinux 64bit, with 3.10.27 LTS (I
>                 tested 3.10.20 too, maybe I should give 21 to 26 a try
>                 too, but dunno if it's kernel related...)
>
>                 I do not have pulseaudio. I play directly from aplay
>                 or mpd.
>
>
>                 I do not know if a .asoundrc or /etc/asound.conf
>                 config file is needed, I have tried many with no fix.
>
>
>                 I'm using the latest version of alsa (1.27.2 iirc).
>
>
>                 I play only 16bits files (all my music is lossless),
>                 44.1KHz
>
>
>                 If you have an alsa config file, could you paste it
>                 please ?
>
>
>                 I've had a look at the thread you speak about, that's
>                 how I knew that the Teac can work at 16/44.1 but there
>                 are no explanations of the configuration to set in
>                 order to make it work... Hope you understand what I
>                 mean.
>
>
>                 First of all, gonna install Fedora 18 with the same
>                 kernel as you and disable pulse, then use aplay, and I
>                 will know if it's ok.
>
>
>
>         I have a laptop and USB DAC that causes me problems with
>         distorted / crackly sound when plugged into a USB-2 port and
>         works fine in a USB-3 port.  This has been the case so far
>         with 3.2, 3.8 and 3.11 kernels.  The DAC seems to work fine
>         with other computers in the household running the same
>         kernels.
>
>
>         Therefore I have concluded in my case at least it is something
>         not correctly managed in the USB-2 port on the one laptop.
>         Fortunately, since everything works fine on the USB-3 ports in
>         the machine in question, I am OK with all of this.
>
>
>         Can you try your DAC on some other machine?  Can you install a
>         different USB setup in your current machine?
>
>
>
>
>         --
>         Chris Hermansen · clhermansen "at" gmail "dot" com
>
>         C'est ma façon de parler.
>
>


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