Chris,

On Mon, 26 Sep 2016 18:00:01 -0700
chris hermansen <clherman...@gmail.com> wrote:

> Bob and list;
> 
> On Mon, Sep 26, 2016 at 3:04 PM, Bob Williams <li...@karmasailing.uk>
> wrote:
> 
> > On Mon, 26 Sep 2016 11:12:32 -0700
> > chris hermansen <clherman...@gmail.com> wrote:
> >
> > > Bob, what connects your computer to your TEAC?  A USB cable?
> > >
> > Yes, a USB cable. I also have a sound card, but want to use the TEAC
> > DAC.
> >
> > > What music player do you use?
> > >
> > MPD
> >
> > > What is the output of "aplay -L" in a terminal window?
> >
> > bob@hexagon:~> aplay -L
> > null
> >     Discard all samples (playback) or generate zero samples
> > (capture) default
> >     Default ALSA Output (currently PulseAudio Sound Server)
> > sysdefault:CARD=D1
> >     Xonar D1, Multichannel
> >     Default Audio Device
> > front:CARD=D1,DEV=0
> >     Xonar D1, Multichannel
> >     Front speakers
> > surround21:CARD=D1,DEV=0
> >     Xonar D1, Multichannel
> >     2.1 Surround output to Front and Subwoofer speakers
> > surround40:CARD=D1,DEV=0
> >     Xonar D1, Multichannel
> >     4.0 Surround output to Front and Rear speakers
> > surround41:CARD=D1,DEV=0
> >     Xonar D1, Multichannel
> >     4.1 Surround output to Front, Rear and Subwoofer speakers
> > surround50:CARD=D1,DEV=0
> >     Xonar D1, Multichannel
> >     5.0 Surround output to Front, Center and Rear speakers
> > surround51:CARD=D1,DEV=0
> >     Xonar D1, Multichannel
> >     5.1 Surround output to Front, Center, Rear and Subwoofer
> > speakers surround71:CARD=D1,DEV=0
> >     Xonar D1, Multichannel
> >     7.1 Surround output to Front, Center, Side, Rear and Woofer
> > speakers iec958:CARD=D1,DEV=0
> >     Xonar D1, Multichannel
> >     IEC958 (S/PDIF) Digital Audio Output
> > sysdefault:CARD=DEVICE
> >     TEAC USB AUDIO DEVICE, USB Audio
> >     Default Audio Device
> > front:CARD=DEVICE,DEV=0
> >     TEAC USB AUDIO DEVICE, USB Audio
> >     Front speakers
> > surround21:CARD=DEVICE,DEV=0
> >     TEAC USB AUDIO DEVICE, USB Audio
> >     2.1 Surround output to Front and Subwoofer speakers
> > surround40:CARD=DEVICE,DEV=0
> >     TEAC USB AUDIO DEVICE, USB Audio
> >     4.0 Surround output to Front and Rear speakers
> > surround41:CARD=DEVICE,DEV=0
> >     TEAC USB AUDIO DEVICE, USB Audio
> >     4.1 Surround output to Front, Rear and Subwoofer speakers
> > surround50:CARD=DEVICE,DEV=0
> >     TEAC USB AUDIO DEVICE, USB Audio
> >     5.0 Surround output to Front, Center and Rear speakers
> > surround51:CARD=DEVICE,DEV=0
> >     TEAC USB AUDIO DEVICE, USB Audio
> >     5.1 Surround output to Front, Center, Rear and Subwoofer
> > speakers surround71:CARD=DEVICE,DEV=0
> >     TEAC USB AUDIO DEVICE, USB Audio
> >     7.1 Surround output to Front, Center, Side, Rear and Woofer
> > speakers iec958:CARD=DEVICE,DEV=0
> >     TEAC USB AUDIO DEVICE, USB Audio
> >     IEC958 (S/PDIF) Digital Audio Output
> >
> >
> I would take this step by step.
> 
> First you should use aplay to find out what works and what doesn't.
> Find a .wav file of representative music somewhere or create one (use
> soundconverter for instance).
> 
> Run "aplay -l" to make sure that your TEAC card is card 1 (it looks as
> though it is but check)
> 
> Then try playing the resulting .wav file with aplay through the TEAC,
> like this:
> 
> aplay -D hw:1,0 mysong.wav
> 
> (this will play at full volume if it works so make sure you have your
> volume turned way down)
> 
> If that doesn't work, try
> 
> aplay -D plughw:1,0 mysong.wav
> 
> Assuming one or the other of those works...
> 
> Second, is the TEAC dedicated to MPD's use, or will you want other
> programs to use it (like VLC)?
> 
> Assuming it's dedicated, then I would configure MPD to talk directly
> to the TEAC through ALSA, especially if you have music at varying bit
> rates and you want to pass them through untouched.
> 
> I run two music servers in my house, both with MPD and dedicated
> DACs.  My audio output stanza in my /etc/mpd.conf looks like this:
> 
> audio_output {
> enabled         "yes"
> type            "alsa"
> name            "Schiit Bifrost"
> device          "hw:2,0"
> mixer_type      "disabled"
> auto_resample   "no"
> auto_channels   "no"
> auto_format     "no"
> dop             "no"
> }
> 
> You would have to change the name and the device.
> 
> If the aplay experiments didn't work or you don't want to dedicate,
> then get back to the list.
> 
> 

Many thanks. That all worked well.

-- 
Bob Williams
   System:  Linux 4.1.20-11-default
   Distro:  openSUSE 42.1 (x86_64)
   Desktop: KDE Frameworks: 5.21.0, Qt: 5.5.1 and Plasma: 

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