Adding something like this:
pcm.hdaloop_in {
type multi
slaves.a.pcm "card0" # main sound card
slaves.a.channels 2
slaves.b.pcm "p_card1in0" # aloop sound card
slaves.b.channels 2
bindings.0.slave a
bindings.0.channel 0
bindings.1.slave b
bindings.1.channel 0
}
pcm.!default {
type asym
playback.pcm {
type plug
slave.pcm "r_copier"
}
capture.pcm {
type plug
slave.pcm "default"
}
}
pcm.ear {
type plug
slave{
pcm "hdaloop_in"
}
}
You should have a new input pcm which merge what you play and what you
record. Anyway you need to manage it a bit, probably you'll have echo
problem so use the right pcm. hdaloop_in merge two streams but in this
example it use only the left channel. Another thing you probably
should use dmix and dsnoop as your devices or you can't open them more
than one time.
bye,
Dino
2009/11/12 yvonne barrymore <yvonneyb@xxxxxxxxx>:
> Appreciated. though wiped my machine and happily did fresh minimalist
> install again after much pulse and jack time. Lot of reasons and of
> course pulse and jack are great. Simply, I need it manageable.
>
> This can be done with just ALSA. Can't speak for the quality of
> resultant sound though with aloop/multi/asym/dmix/dsnoop it can be
> done. I would really ask now for help from a guru as I've been asking
> for help for weeks and have tried everything though will keep trying.
>
> Can someone please tell me what to change/add in the .asoundrc below.
> I need to merge a 2nd stream INTO the microphone channel, i think,
> during a skype/voip conversation. I have aloop driver installed and
> working as well as 'almost' enough knowledge.
>
> REALLY asking please.
>
>
>> Happened to notice the below. It sounds like what you're trying to do is
>> easiest done by Pulseaudio, honestly. Of course, I believe it may be
>> possible with alsa, but I don't know about that.
>>
>
>
>
>>> GOAL: skype/SIP conversation while listening to music stream that's
>>> merged into conversation. Hoping to find changes needed to .asoundrc
>>> below.
>>>
>>> Below my 'aplay -l' here I have posted an .asoundrc I found that seems
>>> to just need something added or changed so that an mplayer/aplay
>>> stream can be played into the headset mic inputs.
>>>
>>> Usually I have some problem with aplay/mplayer when I try to play into
>>> the various .asoundrc points. The .asoundrc below is fine with
>>> mplayer/aplay though it's written for multiple output and not multiple
>>> input. I think?
>>>
>>> And of course I don't actually hear anything when I send audio to the
>>> aloop parts. ie. pcm.p_card1in0 AND pcm.p_card1out0.
>>> mplayer doesn't stop with an error though, which is good. So now, how
>>> to get music into a skype/sip conversation so it can be heard by both
>>> people in a conversation while talking?
>>>
>>> Hoping an alsa guru might respond. I'm hoping that there must be
>>> someone here that can tell me.
>>> Not had success at all yet.
>>> Really really struggling to create an .asoundrc that will allow:
>>>
>>> Having a conversation via skype/SIP with both parties listening to an
>>> mplayer/aplay generated music track merged into the outgoing
>>> microphone (headset) channel.
>>>
>>> I've been reading alsa docs for weeks and have tried dozens of various
>>> .asoundrc and edits of. Tried pulse audio with alsa, jack with alsa,
>>> etc. etc. etc.
>>>
>>> Currently dedicated to finding a way to do this with ALSA only (not
>>> jack/pulse at this time) I have done a fresh 'alsa only' install which
>>> has helped. AND: I have managed to get a working aloop driver
>>> installed as my aplay -l below shows.
>>>
>>> I'm at the point of not know at all what to try next. It appears that
>>> by using alsa aloop/dsnoop/asym/multi plugins (which I've tried and
>>> tried with) I should be able to dsnoop/aloop/multi a command line
>>> mplayer or aplay stream INTO the voip chat. Many of the .asoundrc I've
>>> tried would allow the music track to be played (mplayer/aplayer cli)
>>> and also allow a voip conversation as well. Just can't get the music
>>> into the stream of the conversation.
>>>
>>> The most immediate way, I've thought should be to have the music track
>>> playing into card0 (the internal hda-intel chip), then loopback that
>>> into the input of the cmedia usb headset. Thereby allowing the
>>> conversation to occur while the music is played clearly as the
>>> mplayer/aplay stream is not fighting for the soundcard. help?!
>>>
>>> I have tried dmix and so much else. I need to have the music looped
>>> back into the mic input channels, don't I?
>>>
>>> Can anyone tell me what I've missed. I won't post the many many many
>>> things I've tried though happily could post some of the .asoundrc
>>> segments as a response should anyone have any ideas. Here's one below
>>> that's great though backward perhaps.
>>>
>>> I've probably read/tried most of the code found on all the alsa lists.
>>> Absolutely stumped at this point as i don't yet have the understanding of what
>>> needs to happen.
>>>
>>> thanks!!!!!
>>>
>>> aplay -l with working aloop driver installed:
>>>
>>> aplay -l
>>> **** List of PLAYBACK Hardware Devices ****
>>> card 0: Intel [HDA Intel], device 0: ALC1200 Analog [ALC1200 Analog]
>>> Subdevices: 1/1
>>> Subdevice #0: subdevice #0
>>> card 0: Intel [HDA Intel], device 1: ALC1200 Digital [ALC1200 Digital]
>>> Subdevices: 1/1
>>> Subdevice #0: subdevice #0
>>> card 0: Intel [HDA Intel], device 6: Si3054 Modem [Si3054 Modem]
>>> Subdevices: 1/1
>>> Subdevice #0: subdevice #0
>>> card 1: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
>>> Subdevices: 8/8
>>> Subdevice #0: subdevice #0
>>> Subdevice #1: subdevice #1
>>> Subdevice #2: subdevice #2
>>> Subdevice #3: subdevice #3
>>> Subdevice #4: subdevice #4
>>> Subdevice #5: subdevice #5
>>> Subdevice #6: subdevice #6
>>> Subdevice #7: subdevice #7
>>> card 1: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
>>> Subdevices: 8/8
>>> Subdevice #0: subdevice #0
>>> Subdevice #1: subdevice #1
>>> Subdevice #2: subdevice #2
>>> Subdevice #3: subdevice #3
>>> Subdevice #4: subdevice #4
>>> Subdevice #5: subdevice #5
>>> Subdevice #6: subdevice #6
>>> Subdevice #7: subdevice #7
>>> card 2: default [C-Media USB Headphone Set ], device 0: USB Audio [USB Audio]
>>> Subdevices: 1/1
>>> Subdevice #0: subdevice #0
>>>
>>> BELOW : .asoundrc I found that works with aloop though it's sorta the
>>> opposite in that it records and I need to play a stream IN. Though the
>>> aloop parts does allow mplayer/aplay stream to be sent to them. What
>>> would I add or change to get music INTO the voip/skype conversation
>>> microphone channels?
>>>
>>> #######
>>> # usb headset as per my aplay -l
>>> pcm.card0 {
>>> type hw
>>> card 2
>>> }
>>>
>>> # loopback aloop
>>> pcm.p_card1in0 {
>>> type plug
>>> slave {
>>> pcm "hw:1,0,0"
>>> }
>>> }
>>>
>>> pcm.p_card1out0 {
>>> type plug
>>> slave {
>>> pcm "hw:1,1,0"
>>> }
>>> }
>>>
>>> # does some multi merge routing
>>> pcm.m_copier {
>>> type multi
>>> slaves.a.pcm "card0"
>>> slaves.a.channels 2
>>> slaves.b.pcm "p_card1in0"
>>> 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
>>> }
>>>
>>> pcm.r_copier {
>>> type route
>>> slave.pcm "m_copier"
>>> ttable.0.0 1
>>> ttable.1.1 1
>>> ttable.0.2 1
>>> ttable.1.3 1
>>> }
>>>
>>> pcm.!default {
>>> type plug
>>> slave {
>>> pcm "r_copier"
>>> }
>>> }
>>>
>>> #######
>
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