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#!/bin/sh
SETME=${1:-100%}
enable_recording()
{
local DEV="$1"
amixer -D "$DEV" controls | (
IFS=,
while read a b c _; do
case "${c#name=}" in *Capture*|*Boost*)
amixer -D "$DEV" cset "$a,$b,$c" "$SETME";;
esac
done
)
}
hardware_devices()
{
arecord -L |
while IFS= read line; do
case "$line" in hw:*)
dev=${line##*DEV=}
echo hw:${dev%%,*}
;;
esac
done
}
for dev in default $(hardware_devices); do
enable_recording $dev
done
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