[alsa-devel] SPDIF: How to play mono sound

[ajay khandelwal]

Thanks Pavel,
It worked, just little improvement
 it should be in quotes like this
aplay -D"plug:'iec958:CARD=ICH6,DEV=0'" mono_music.wav
Best Regards,
Ajay
On Tue, Nov 8, 2011 at 3:48 PM, Pavel Hofman <pavel.hofman at ivitera.com>wrote:

>
> Dne 8.11.2011 11:04, ajay khandelwal napsal(a):
>  > Hi all,
> >  I have a pc with SPDIF out. I want to play audio file with single
> > channel(mono) using aplay.
> >
> > How to do that, when I try to play with following command, it gives error
> >
> > aplay -Diec958:CARDICH6,DEV=0 mono_music.wav
> >
> > it gives following error
> > aplay: set_param:1065: Channels count not available.
> >
>
> How about
>
> aplay -Dplug:iec958:CARDICH6,DEV=0 mono_music.wav
>
> Spdif is a stereo device and does not accept a single channel stream.
> The plug plugin will do the conversion:
>
> Plug PCM: Route conversion PCM (sformat=S16_LE)
>  Transformation table:
>    0 <- 0
>    1 <- 0
>
>
> Pavel.
>