[pulseaudio-discuss] How can I record from multiple inputs

[Georg Chini]

On 26.06.2016 19:25, Dark Shadow wrote:
> I'm trying to record some game footage and include some talking but I
> can't get audio to record from multiple sources.
>
>
> I have the game audio coming into the system via a loop back cable
> into line-in which works
> I also have a Bluetooth headset which can work for my voice on its own
>
> But I can't record from both simultaneously since Pulseaudio only lets
> me select one
>
> My ideal setup would be
> audio output via BT headset
> I can hear the line-in input also via module-loopback which I already do
> but I see problems if the voice is multiplexed with since I don't want
> voice looped back to the output
> the OBS recording software records both line-in and voice (BT) either
> via some virtual multiplexed virtual input or being presented with
> multiple input options from Pulseaudio (prefered over virtual)
>
> I tried going through the list of modules on the wiki but couldn't
> figure out how to do anything.
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Hi,

you can use a null-sink and loopback both sources to the null-sink.
Then record from the monitor of the null-sink.

Regards
              Georg