Sound Selector MacOS

brew install switchaudio-osx

stoege@mac ~ % sound.sh

1: Externe Kopfhörer
2: Externes Mikrofon
3: Jabra Link 400
4: Mac mini-Lautsprecher
5: SRS-XB33
6: USB Audio Device

stoege@mace ~ % sound.sh 5

input audio device set to "SRS-XB33"
output audio device set to "SRS-XB33"

#!/usr/bin/env bash

# Audio Switcher on MAC, Stöge, June 2024, https://blog.stoege.net/posts/sound/

# Vars
f="${HOME}/.sound_devices"

# Function to list audio sources with numbers
list_devices() {
    count=1
    rm -f "${f}"  # Clear the temporary file if it exists
    SwitchAudioSource -a | sort | uniq | while read -r line; do
        echo "$count: $line" | tee -a "${f}"
        count=$((count + 1))
    done
}

# Function to set audio source/target
showset() {
    local device="$1"
    echo
    if [[ "$device" == "Jabra Link 400" || "$device" == "SRS-XB33" ]]; then
        SwitchAudioSource -t input -s "$device"
    fi
    SwitchAudioSource -s "$device"
    echo
}

# No arguments given, list devices
if [ $# -eq 0 ]; then
    echo; list_devices; echo
    exit 1
fi

# Check if the provided argument is a valid number
if ! [[ "$1" =~ ^[0-9]+$ ]]; then
    echo "Invalid input. Please provide a valid number."
    exit 1
fi

# Check if the given number corresponds to a device
device_line=$(grep "^$1: " ${f})
if [ -z "$device_line" ]; then
    echo "Device number $1 not found in the list."
    exit 1
fi

# Extract the device name
device_name=$(echo "$device_line" | cut -d' ' -f2-)

# Set the audio source to the selected device
showset "${device_name}"

# Done
exit