Hi all,
I have a problem running the RME MADIface card at 192 kHz. At that speed the number of channels for the card is reduced to 16. I can set the sampling rate to 192 kHz using:
# amixer -c 1 cset numid=2 9 numid=2,iface=MIXER,name='Sample Clock Source' ; type=ENUMERATED,access=rw------,values=1,items=10 ; Item #0 'AutoSync' ; Item #1 'Internal 32.0 kHz' ; Item #2 'Internal 44.1 kHz' ; Item #3 'Internal 48.0 kHz' ; Item #4 'Internal 64.0 kHz' ; Item #5 'Internal 88.2 kHz' ; Item #6 'Internal 96.0 kHz' ; Item #7 'Internal 128.0 kHz' ; Item #8 'Internal 176.4 kHz' ; Item #9 'Internal 192.0 kHz' : values=9
but when I try to read data at 192 kHz I always get a :
Invalid argument
from
the snd_pcm_hw_params_set_channels(...)
and
snd_pcm_hw_params(...)
functions when I try to set the number of channels. The
snd_pcm_hw_params_get_channels_max(...) snd_pcm_hw_params_get_channels_min(...)
functions also seems to return the wrong number of max and min number of channels.
And, jackd will not start using 192 kHz. See the thread here: http://www.rme-audio.de/forum/viewtopic.php?id=9169
What is needed to get this card running at 192 kHz?
Regards,
/Fredrik