Hi Clemens!
I've at least tested SPDIF in under Windows now so I know its not a hardware issue here.
On Tue, Nov 13, 2012 at 9:25 PM, Clemens Ladisch clemens@ladisch.de wrote:
Dan MacDonald wrote:
However, I had a quick go at capturing audio from SPDIF and the default stereo inputs (after making sure SPDIF in was enabled under alsamixer) this morning but I got nothing. I have zero experience with SPDIF
devices
and Linux (or any other OS) so I dunno what to watch out for
This depends entirely on how the hardware implements the routing.
In my quick test I was trying to capture audio from a audio CDR so there won't have been any copy protection on the disc. CDs are 44.1Khz of
course
but I was running JACK at 48Khz - that shouldn't be an issue should it or would I need to run JACK at 44.1 to capture an audio CD via SPDIF? Maybe
rt
resampling isn't supported?
I didn't find a box labeled "high-quality resampler for those lazy Jack users" in the datasheet ...
Hehe! :)
but the box for this card says "Hard to find made easy" on every face!
Another thing thats just come to mind is I think that the mic and line inputs were also set to capture so maybe I'd need to only enable capture for the SPDIF input but nothing else?
In theory, only one input can be enabled at the same time. What does "amixer contents" show for this device?
Regards, Clemens
amixer -c 1 contents numid=14,iface=MIXER,name='PCM Capture Source' ; type=ENUMERATED,access=rw------,values=1,items=4 ; Item #0 'Mic' ; Item #1 'Line' ; Item #2 'IEC958 In' ; Item #3 'Mixer' : values=0 numid=12,iface=MIXER,name='PCM Capture Switch' ; type=BOOLEAN,access=rw------,values=1 : values=off numid=13,iface=MIXER,name='PCM Capture Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=6928,step=0 : values=4096,4096 | dBminmax-min=-16.00dB,max=11.06dB numid=3,iface=MIXER,name='Line Playback Switch' ; type=BOOLEAN,access=rw------,values=1 : values=off numid=4,iface=MIXER,name='Line Playback Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=8065,step=0 : values=6144,6144 | dBminmax-min=-24.00dB,max=7.50dB numid=9,iface=MIXER,name='Line Capture Switch' ; type=BOOLEAN,access=rw------,values=1 : values=off numid=10,iface=MIXER,name='Line Capture Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=6928,step=0 : values=4096,4096 | dBminmax-min=-16.00dB,max=11.06dB numid=1,iface=MIXER,name='Mic Playback Switch' ; type=BOOLEAN,access=rw------,values=1 : values=off numid=2,iface=MIXER,name='Mic Playback Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=8065,step=0 : values=6144,6144 | dBminmax-min=-24.00dB,max=7.50dB numid=7,iface=MIXER,name='Mic Capture Switch' ; type=BOOLEAN,access=rw------,values=1 : values=off numid=8,iface=MIXER,name='Mic Capture Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=6928,step=0 : values=4096,4096 | dBminmax-min=-16.00dB,max=11.06dB numid=11,iface=MIXER,name='IEC958 In Capture Switch' ; type=BOOLEAN,access=rw------,values=1 : values=on numid=5,iface=MIXER,name='Speaker Playback Switch' ; type=BOOLEAN,access=rw------,values=1 : values=on numid=6,iface=MIXER,name='Speaker Playback Volume' ; type=INTEGER,access=rw---R--,values=8,min=0,max=197,step=0 : values=196,196,196,196,196,196,196,196 | dBminmax-min=-36.93dB,max=0.00dB
Thanks Clemens!