[pulseaudio-discuss] How to capture one of multiple radios that these radios play at the same time?

[Tsai Yu-Chin]

Excuse me.
When I play 3 radios at the same time,
how to capture one of them using PulseAudio?
Using Asynchronous API?

I study PulseAudio Volume Control of PulsaAudio Device Chooser Project,
but I capture one audio which combine 3 radios.

How can I capture one audio which is from one of three radios?