From: Antonio Ospite Date: Mon, 5 Nov 2018 15:01:17 +0000 (+0100) Subject: Add pulseaudio_record_from_everything.sh X-Git-Url: https://git.ao2.it/experiments/scripts.git/commitdiff_plain/96623ae2ccb73352501ef992c824094848b593bc Add pulseaudio_record_from_everything.sh --- 96623ae2ccb73352501ef992c824094848b593bc diff --git a/pulseaudio_record_from_everything.sh b/pulseaudio_record_from_everything.sh new file mode 100755 index 0000000..ef923f5 --- /dev/null +++ b/pulseaudio_record_from_everything.sh @@ -0,0 +1,46 @@ +#!/bin/bash +# +# pulseaudio_record_from_anything - record from all sources with pulseaudio +# +# Copyright (C) 2018 Antonio Ospite +# +# This program is free software. It comes without any warranty, to +# the extent permitted by applicable law. You can redistribute it +# and/or modify it under the terms of the Do What The Fuck You Want +# To Public License, Version 2, as published by Sam Hocevar. See +# http://sam.zoy.org/wtfpl/COPYING for more details. + +set -e + +command -v /usr/bin/parec > /dev/null || { echo "parec missing, install pulseaudio-utils" 1>&2; exit 1; } +command -v /usr/bin/oggenc > /dev/null || { echo "oggenc missing, install vorbis-tools" 1>&2; exit 1; } + +if pactl list short sinks | grep -q module-null-sink; +then + echo "The null sink is already loaded, bailing out." 1>&2 + exit 1 +fi + +# Load the null sink. +# It'll act as a "kitchen sink"... I'll show myself out. +PA_IDS=$(pactl load-module module-null-sink) +trap 'exit 1' INT +trap 'trap INT; for pa_id in $PA_IDS; do pactl unload-module "$pa_id"; done' EXIT + +# Record from everything by redirecting any source to the null sink. +SOURCES=$(pactl list short sources | cut -f 2 | grep -v '^null\.monitor$') +for source in $SOURCES; +do + MODULE_ID=$(pactl load-module module-loopback latency_msec=1 source="$source" sink=null) + PA_IDS="$MODULE_ID $PA_IDS" +done + +# Listen to what you are recording. +# NOTE: beware of Larsen effect when using microphones. +#pactl load-module module-loopback source=null.monitor sink=@DEFAULT_SINK@ + +# Un-mute the sink. +pactl set-sink-mute null 0 + +# Record everything. +parec -d null.monitor | oggenc -b 192 -o "recording_output_$(date +"%F_%T").ogg" --raw -