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@kasumiru
Forked from OndraZizka/switchHeadphones.sh
Created October 22, 2021 21:34
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Bluetooth headset - switch between quality sound + no mic (A2DP) and crappy sound and mic (HSP/HFP)
#!/bin/bash
#### Restart Bluetooth
if [ "$1" == "resetBT" ] ; then
sudo rfkill block bluetooth && sleep 0.1 && sudo rfkill unblock bluetooth;
exit;
fi;
#### Toggle listen/speak
if [ "$1" == "" -o "$1" == "toggle" ] ; then
LINE=`pacmd list-sinks | grep '\(name:\|alias\)' | grep -B1 F5A | head -1`
if [ "$LINE" == "" ] ; then echo "F5A headset not found."; $0 reset; sleep 2; exit; fi
SINK_NAME="bluez_sink.00_19_5D_25_6F_6C.a2dp_sink"
if $(echo "$LINE" | grep $SINK_NAME &> /dev/null) ; then
echo "Detected quality sound output, that means we can't speak; switch that."
$0 speak;
else
echo "Quality sound not found, switch to the good sound."
$0 listen;
fi
fi
#### Change the output to F5A
if [ "$1" == "listen" ] ; then
LINE=`pacmd list-sinks | grep '\(name:\|alias\)' | grep -B1 F5A | head -1`
if [ "$LINE" == "" ] ; then echo "F5A phones not found."; $0 reset; sleep 2; exit; fi
# name: <bluez_sink.00_19_5D_25_6F_6C.headset_head_unit>
## Get what's between <...>
SINK_NAME=`echo "$LINE" | tr '>' '<' | cut -d'<' -f2`;
## The above gives an ID according to the active profile.
## To set manually:
#SINK_NAME="bluez_sink.00_19_5D_25_6F_6C.headset_head_unit"
#SINK_NAME="bluez_sink.00_19_5D_25_6F_6C.a2dp_sink"
## Switch the output to that.
echo "Switching audio output to $SINK_NAME";
pacmd set-default-sink "$SINK_NAME"
#### Change profile to quality output + no mic. From `pacmd list-cards`:
CARD="bluez_card.00_19_5D_25_6F_6C"
PROFILE="a2dp_sink"
echo "Switching audio profile to $PROFILE";
pacmd set-card-profile $CARD $PROFILE
exit;
fi;
#### Input
if [ "$1" == "speak" ] ; then
## Change profile to crappy output + mic. From `pacmd list-cards`:
CARD="bluez_card.00_19_5D_25_6F_6C"
pacmd set-card-profile $CARD headset_head_unit
LINE=`pacmd list-sources | grep '\(name:\|alias\)' | grep -B1 F5A | head -1`
if [ "$LINE" == "" ] ; then echo "F5A mic not found."; $0 reset; sleep 2; exit; fi
SOURCE_NAME=`echo "$LINE" | tr '>' '<' | cut -d'<' -f2`;
#SOURCE_NAME="bluez_source.00_19_5D_25_6F_6C.headset_head_unit"
#SOURCE_NAME="bluez_sink.00_19_5D_25_6F_6C.a2dp_sink.monitor"
echo "Switching audio input to $SOURCE_NAME";
pacmd set-default-source "$SOURCE_NAME" || echo 'Try `pacmd list-sources`.';
fi;
#### Resources:
## Why this is needed
# https://jimshaver.net/2015/03/31/going-a2dp-only-on-linux/
## My original question
# https://askubuntu.com/questions/1004712/audio-profile-changes-automatically-to-hsp-bad-quality-when-i-change-input-to/1009156#1009156
## Script to monitor plugged earphones and switch when unplugged (Ubuntu does that, but nice script):
# https://github.com/freundTech/linux-helper-scripts/blob/master/padevswitch/padevswitch
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