noise-removal-with-pulseaudio

# credit from https://gist.githubusercontent.com/grigio/cb93c3e8710a6f045a3dd9456ec01799/raw/94f07c7d75bcf5dd9b08a9c3034844223ec6fbe1/fix-microphone-background-noise.sh

# Microphone Realtime background noise reduction script
# author Luigi Maselli - https://grigio.org licence: AS-IS
# credits: http://askubuntu.com/questions/18958/realtime-noise-removal-with-pulseaudio
# run as: sudo && pulseaudio -k

sudo cp /etc/pulse/default.pa /etc/pulse/default.pa.bak
sudo cat <<EOT >> /etc/pulse/default.pa
load-module module-echo-cancel source_name=noechosource sink_name=noechosink
set-default-source noechosource
set-default-sink noechosink
EOT