[pulseaudio-discuss] Routing sink to source

[Zoltán Szabó]

Hi Daniel,

I am running these in console. I don't have GUI. app01 that should use the
monitor is Chrome in headless mode and it just simply not able to open the
monitor. It can open and use a pipe source or virtual source but not a null
sink's monitor :(

Zoltan

On Fri, Nov 9, 2018 at 5:30 AM Daniel <windseeker at gmx.de> wrote:

> Hi Zoltán,
>
> Since years now I successfully use the way you mentioned in "P.S.". I play
> to a null sink and record from its monitor.
>
> I'm not sure why app02 should not be able to connect to this monitor. If
> app02 is recording from PA in general, independent of "from where", then it
> should show in pavucontrol in the "recording" tab. There you can set it's
> input source to the null sink monitor where app01 plays to.
>
> Regards,
> Daniel
>
> Am Do., 8. Nov. 2018, 19:50 hat Zoltán Szabó <zoell at zoell.us> geschrieben:
>
>> Hi,
>>
>> I would like to connect my app01's audio output to my app02's microphone.
>>
>> Here is what I have tried so far:
>>
>> I create a file pipe sink for my app01:
>> load-module module-pipe-sink sink_name=pa_speaker_app01
>> file=/home/pulseaudio/pa_speaker_app01 format=ulaw rate=8000 channels=1
>>
>> I create a file pipe sink for my app02:
>> load-module module-pipe-sink sink_name=pa_speaker_app02
>> file=/home/pulseaudio/pa_speaker_app02 format=ulaw rate=8000 channels=1
>>
>> This way both of my apps have an available output device.
>>
>> I create a virtual source as a mic for my other app01 and 02:
>> load-module module-virtual-source source_name=pa_virtual_source_app01
>> uplink_sink=pa_speaker_app02
>> load-module module-virtual-source source_name=pa_virtual_source_app02
>> uplink_sink=pa_speaker_app01
>>
>> This way anything played on pa_speaker_app02 should be routed to the
>> app01's microphone pa_virtual_source_app01, right? Also should be true for
>> app01 to app02.
>>
>> So I start my app01 and 2:
>> PULSE_SOURCE=pa_virtual_source_app01 PULSE_SINK=pa_speaker_app01
>> ./startapp01
>> PULSE_SOURCE=pa_virtual_source_app02 PULSE_SINK=pa_speaker_app02
>> ./startapp01
>>
>> But this is not working at all. Is this not the right approach? I can see
>> in the PA logs that the apps are connected successfully to PA.
>>
>> PS: I also tried to crate a null sink, but app01 (it is actually chrome)
>> is not able to open the null sink's monitor as a mic.
>>
>> Thanks
>> zoell
>>
>> _______________________________________________
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>> pulseaudio-discuss at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
>>
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