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ubuntu:pluseaudio [2019/01/11 10:19] tschulz |
ubuntu:pluseaudio [2019/01/11 12:23] (current) tschulz [Ubuntu 13.04/Raring (and later)] |
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| To see the module names run pulse audio with the shell from the terminal | To see the module names run pulse audio with the shell from the terminal | ||
| - | <file> | + | <file bash> |
| pulseaudio -C | pulseaudio -C | ||
| </file> | </file> | ||
| Line 32: | Line 32: | ||
| pacmd load-module module-tunnel-sink server=soundserver.local | pacmd load-module module-tunnel-sink server=soundserver.local | ||
| pacmd load-module module-combine sink_name=combined slaves="tunnel.soundserver.local,alsa_output.pci_10de_26c_sound_card_0" | pacmd load-module module-combine sink_name=combined slaves="tunnel.soundserver.local,alsa_output.pci_10de_26c_sound_card_0" | ||
| + | </file> | ||
| + | <file> | ||
| + | load-module module-native-protocol-tcp auth-anonymous=1 | ||
| + | </file> | ||
| + | |||
| + | ===== Noise Reduction Script ===== | ||
| + | <file bash> | ||
| + | #!/bin/bash | ||
| + | time=5 | ||
| + | workDir='/tmp' | ||
| + | record() | ||
| + | { | ||
| + | echo "Recording background noise. Keep quiet for $time seconds." | ||
| + | sleep 3 | ||
| + | arecord -f cd noise.wav & | ||
| + | PID=$! | ||
| + | sleep $time | ||
| + | kill $PID | ||
| + | aplay noise.wav | ||
| + | } | ||
| + | |||
| + | #get pulse audio devices | ||
| + | devices=`pactl list | grep -E -A2 '(Source|Sink) #' | grep 'Name: ' | grep -v monitor | cut -d" " -f2` | ||
| + | if [ `echo "$devices" | grep -c aloop` -lt 1 ]; then | ||
| + | echo "No loopback device created. Run 'sudo modprobe snd_aloop' first." | ||
| + | exit | ||
| + | fi | ||
| + | |||
| + | cd $workDir | ||
| + | |||
| + | #record noise sample | ||
| + | record | ||
| + | while true; do | ||
| + | read -p "Do you wish to re-record the noise sample?" yn | ||
| + | case $yn in | ||
| + | [Yy]* ) record;; | ||
| + | [Nn]* ) break;; | ||
| + | * ) echo "Please answer yes or no.";; | ||
| + | esac | ||
| + | done | ||
| + | |||
| + | #create noise profile | ||
| + | sox noise.wav -n noiseprof noise.prof | ||
| + | |||
| + | input=`echo "$devices" | grep input.*pci` | ||
| + | output=`echo "$devices" | grep output | grep 1b` | ||
| + | |||
| + | echo "Sending output to loopback device. Change recording port to <Loopback Analog Stereo Monitor> in PulseAudio to apply. Ctrl+C to terminate." | ||
| + | |||
| + | #filter audio from $input to $output | ||
| + | pacat -r -d $input --latency=1msec | sox -b 16 -e signed -c 2 -r 44100 -t raw - -b 16 -e signed -c 2 -r 44100 -t raw - noisered noise.prof 0.2 | pacat -p -d $output --latency=1msec | ||
| </file> | </file> | ||
ubuntu/pluseaudio.1547223580.txt.gz · Last modified: 2019/01/11 10:19 by tschulz
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