2014/1/20 James Board <jpboard2 at yahoo.com> > 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. > Assuming your PC have one blue line in jack unmute "Line Playback Switch" and set "Line Playback Volume" using amixer -c0 or alsamixer some HDA codec may have a "Loopback mixing" switch which can enable/disable the loopback mixer for power saving you may also need to set "Line Boost" to 0dB for some HDA codec for motherboard with three audio jacks at rear panel, you have to set "channel mode" to "2ch" , since line in jack is retasked to output for "4ch" and "6ch" for motherboard with five audio jacks at rear panel, you need to set "channel mode" to "6ch" since line in jack is retasked to output for "8ch" to support 7.1 on some notebook with HDA codec and mic jack but no line in jack , you may also retasked the mic jack to line in jack by switching "Mic jack Mode" to "Line in" after you specify hint add_jack_modes = 1 by early patching https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/Documentation/sound/alsa/HD-Audio-Controls.txt https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/Documentation/sound/alsa/HD-Audio.txt -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20140120/c29b0b05/attachment.html>
