I want to do something simple. Play the audio that 's coming into my (CentOS) PC on Line-IN on my PC speakers. How can I do this? I tried the following command load-module module-loopback latency_msec=1 Which seems to work sometimes, but everytime I disconnect the input, I have to do the above command again. And after a few times, when I run the above command, it crashes pulseaudio. What's the correct way to play audio from the LineIN to the PC Speakers? If this is possible outside pulseaudio, that is okay.