linux-voice-assistant/docs/additional_audio_settings.md

Additional Audio Settings

This document is still in an early stage and will be updated soon.

Pipewire:

tbd

Pulseaudio:

Acoustic Echo Cancellation:

Enable the echo cancel PulseAudio module:

pactl load-module module-echo-cancel \
  aec_method=webrtc \
  aec_args="analog_gain_control=0 digital_gain_control=1 noise_suppression=1"

Verify that the echo-cancel-source and echo-cancel-sink devices are present:

pactl list short sources
pactl list short sinks

Use the new devices:

# The device names may be different on your system.
# Double check with --list-input-devices and --list-output-devices
python3 -m linux_voice_assistant ... \
     --audio-input-device 'Echo-Cancel Source' \
     --audio-output-device 'pipewire/echo-cancel-sink'