<div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial">Hi All:<br><br>I'm studying pulseaudio now, I get a problem, How can I combine two steoro source into one source?<br>just like in alsa, I can use virtual muti device, the configure as below:<br>pcm.quad {<br>        type multi<br>        slaves.a.pcm "hw:2,0"<br>        slaves.a.channels 2<br>        slaves.b.pcm "hw:3,0"<br>        slaves.b.channels 2<br><br>        bindings.0.slave a<br>        bindings.0.channel 0<br>        bindings.1.slave a<br>        bindings.1.channel 1<br>        bindings.2.slave b<br>        bindings.2.channel 0<br>        bindings.3.slave b<br>        bindings.3.channel 1<br>}<br><br>pcm.quad2 {                 <br>        type route          <br>        slave.pcm "quad"     <br>        ttable.0.0 1        <br>        ttable.1.1 1        <br>        ttable.2.2 1        <br>        ttable.3.3 1   <br><div>}<br><br>Thanks very much!<br></div></div><br><br><span title="neteasefooter"><p> </p></span>