Well i think i found the best solution for me using aloop device and
the latest alsa drivers.
With default PCM i can play through my sound card and record from mic,
with ear PCM i can capture all sounds played and at the same time
record from MIC. Mix from these sources is limited because it records
only left channels, unfortunately i can't use dmix plugin for capture
streams.
Hope it will useful for others guy.
bye,
Dino
#
# Split 4 channels stream to play them to 2 soundcards:
#
# in: LRLR out: LR -> through main sound card (with dmix)
# LR -> through aloop sound card (with dmix)
#
pcm.multi {
type multi
slaves.a.pcm "dmix:0,0" # main sound card
slaves.a.channels 2
slaves.b.pcm "dmix:1,0" # aloop sound card
slaves.b.channels 2
bindings.0.slave a
bindings.0.channel 0
bindings.1.slave a
bindings.1.channel 1
bindings.2.slave b
bindings.2.channel 0
bindings.3.slave b
bindings.3.channel 1
}
#
# Create a 4 channels stream from a normal stereo one
#
# in: LR capture out: LRLR
#
pcm.hdaloop_out {
type route
slave.pcm "multi"
slave.channels 4
ttable.0.0 1
ttable.1.1 1
ttable.0.2 1
ttable.1.3 1
}
#
# Create a 2 channels stream from 2 capture devices, taking only
# the left channel
#
# main sound card (with dsnoop) -> in: L
# aloop sound card (with dsnoop) -> in: L out: LL
#
pcm.hdaloop_in {
type multi
slaves.a.pcm "dsnoop:0,0" # main sound card
slaves.a.channels 2
slaves.b.pcm "dsnoop:1,1" # aloop sound card
slaves.b.channels 2
bindings.0.slave a
bindings.0.channel 0
bindings.1.slave b
bindings.1.channel 0
}
#
# default PCM able to play through main sound card and record from
capture device
#
pcm.!default {
type asym
playback.pcm {
type plug
slave.pcm "hdaloop_out"
}
capture.pcm {
type plug
slave.pcm "dsnoop:0,0"
}
}
#
# PCM able to record from capture device and default PCM out
#
pcm.ear {
type plug
slave.pcm "hdaloop_in"
}
2009/9/25 Dino Puller <dino.puller@xxxxxxxxx>:
> Good so this may be a good solution!!!
> Anyway i've found the snd-loop and it seems another possible solution,
> anyway i didn't find documentation on how to set it up. Do you know
> it?
>
> tnx,
> Dino
>
>
> 2009/9/25 John Haxby <jch@xxxxxxxxxxxxxxx>:
>> On 25/09/09 14:40, Dino Puller wrote:
>>>
>>> Well really i need to capture linphone calls and record them,
>>> unfortunately linphone doesn't have support for jack.
>>>
>>
>> You don't need direct jack support. There are both pulseaudio and alsa
>> modules that allow applications to have their audio connections diverted
>> into jack. I've used the pulseaudio one quite recently, I think I've
>> probably used the alsa one as well.
>>
>> jch
>>
>
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