Re: [LAU] Multichannel playback (was: Four channels playback?)

Apr 29 2021, Rodolfo Medina has written: ... ... For a start the above looks a little strange. A chain is one route, however many channels it has. I'd personally write: ecasound -a:1 -f:16,3,44100 -i 3canali.wav -o alsaplugin,2,0 That is, if your file has a samplerate of 44.1kHz. Have you looked at alsamixer or some other graphic mixer to see how your soundcard is configured? Maybe the volume on something is down or there are switches to change the behaviour? There is a speaker-test program that is design for at least 5.1 playback, it could help to find out if output is coming through the third output. My personal shortcut would be to start jack. If the system recognises four outputs at all, they'll be shown as jack ports. Then you could use jack_metro to generate a sound and in turn connect it to every output port of your card: jack_metro -b 120 jack_connect metro:120_bpm system:playback_1 jack_disconnect metro:120_bpm system:playback_1 jack_connect metro:120_bpm system:playback_2 ... HTH. Best wishes, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * Audiobombs: https://www.audiobombs.com/users/jeanette_c * GitHub: https://github.com/jeanette-c I believe We all have one true love Somewhere in this world <3 (Britney Spears)