dotfiles/home/.local/scripts/install_virtmic.sh
2021-01-28 12:47:32 +01:00

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#!/bin/bash
# This script will create a virtual microphone for PulseAudio to use and set it as the default device.
# Load the "module-pipe-source" module to read audio data from a FIFO special file.
echo "Creating virtual microphone."
pactl load-module module-pipe-source source_name=virtmic file=$HOME/.config/pulse/audioFiles/virtmic format=s16le rate=16000 channels=1
# Set the virtmic as the default source device.
echo "Set the virtual microphone as the default device."
pactl set-default-source virtmic
# Create a file that will set the default source device to virtmic for all
PulseAudio client applications.
echo "default-source = virtmic" > $HOME/.config/pulse/client.conf
# Write the audio file to the named pipe virtmic. This will block until the named pipe is read.
echo "Writing audio file to virtual microphone."
while true; do
ffmpeg -re -i input.wav -f s16le -ar 16000 -ac 1 - > $HOME/.config/pulse/audioFiles/virtmic
done