Stuart Pook wrote:
> on Mon, 23 Feb 2004, Clemens Ladisch said
> > It is possible to emulate three stereo devices with the dshare plugin,
> > but this works only for applications using ALSA (not OSS), and it
> > isn't documented. Speak up it you want more info.
>
> Please give more information. I have a Audiotrak Maya EX7 (USB)
> (8 channels) and would love to use it as 2 (or 3 or 4) stereo devices.
pcm_slave.ex7 { # this is a slave definition, not a pcm
pcm "hw:1"
channels 8
rate 48000 # (48000 is the default anyway)
}
pcm.ch12 {
type dshare
ipc_key 1234321
slave ex7
bindings.0 0
bindings.1 1
}
pcm.ch34 {
type dshare
ipc_key 1234321
slave ex7
bindings.0 2
bindings.1 3
}
# ... and so on for 56 and 78
# then wrap it in 'plug' plugins to be able to use other sample rates:
pcm.headphones {
type plug
slave.pcm ch12
}
pcm.hifi {
type plug
slave.pcm ch56
}
> Please also give a hint on how to enable shared access to these pseudo
> stereo devices. I would like to be able to pause rather than quit pytone
> (or alsaplayer) before listening to the radio.
Replace all occurences of "dshare" with "dmix". dshare allows no more
than one client per channel, dmix can mix the data of multiple clients
together.
> How do I increase the buffering (latency) with the EX7?
Try adding period_size and/or buffer_size entries to the slave
definition (both values are in bytes).
HTH
Clemens
-------------------------------------------------------
SF.Net is sponsored by: Speed Start Your Linux Apps Now.
Build and deploy apps & Web services for Linux with
a free DVD software kit from IBM. Click Now!
http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click
_______________________________________________
Alsa-user mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/alsa-user
