Re: Help configuring HDSP9632

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Hi Matt,

I didn't use a RME HDSP9632 for quite a long time (also I never used it
with the dmix plugin). However, the dmesg message sounds like a clock
source problem. All I can suggest is to check for the correct rate
settings, e.g. compare what hdspconf is showing to the output of

cat /proc/asound/card0/hdsp

--fe

Matthew Robbetts schrieb am 26.02.2011 15:18:
> Hi guys,
> 
> I've been trying off and on for weeks now, but I can't get my RME
> HDSP9632 configured under ALSA properly.
> 
> (Is it me or does ALSA really not make this an easy process? I can't
> find anywhere to get any feedback from the system on configuration
> errors. Hell, if you make a typo in the config file, you only find out
> because of some scary-looking output from aplay. The docs on the website
> seem to be quite old and often conflict with each other and I can't find
> any relevant man pages.)
> 
> Anyhow, the card works out of the box, insofar as it lets one
> application play sound through it at a time. So I'm trying to do the
> common thing of configuring dmix to let multiple applications output
> sound at once. Nothing fancy, really! At least, at this point.
> 
> My /etc/asound.conf file is as follows (pieced together from tuts and
> the like):
> 
> ----------------------------
> pcm.!default {
> 	type plug
> 	slave.pcm hdsp9632_dmix
> 	hint {
> 		show on
> 		description "Default device: Plugs into hdsp9632_dmix."
> 	}
> }
> 
> ctl.hdsp9632_dmix {
> 	type hw
> 	card 0
> }
> 
> pcm.hdsp9632_dmix {
> 	type dmix
> 	ipc_perm 0660
> 	ipc_key 1025
> 	ipc_key_add_uid false
> 	slave {
> 		pcm "hw:0,0"
> 		rate 44100
> 		channels 2
> 		period_size 1024
> 		buffer_size 4096
> 	}
> 	bindings {
> 		0 0
> 		1 1
> 	}
> 	hint {
> 		show on
> 		description "hdsp9632_dmix: The dmix plugin - plugs into hdsp9632."
> 	}
> }
> ----------------------------
> 
> 
> Using this file, I get
> 
> # aplay -L
> null
>     Discard all samples (playback) or generate zero samples (capture)
> default
>     Default device: Plugs into hdsp9632_dmix.
> hdsp9632_dmix
>     hdsp9632_dmix: The dmix plugin - plugs into hdsp9632.
> 
> which is what I hope for. But, if I try and play something with vlc, I
> get an error message and "No AutoSync source for requested rate" comes
> up in dmesg. The card is currently set to clock master at the same
> sample rate as the audio (44.1kHz).
> 
> 
> If anyone can shed any light on what I'm doing wrong (and, ideally, some
> methodology on configuring ALSA which doesn't require scrabbling around
> in the dark!), I will be grateful until the end of time.
> 
> Thanks a lot,
> Matt
> 


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