#cat /etc/pipewire/pipewire.conf.d/59-echo-cancel.conf
context.modules = [
    # Load the echo cancellation module with virtual sink
    {
        name = libpipewire-module-echo-cancel
        args = {
            # Enable monitor mode
            monitor.mode = false

            # Set source properties
            source.props = {
                node.name = "source.echo_cancel"
                node.description = "Echo Cancelled Source"
            }

            # Set sink properties
            sink.props = {
                node.name = "sink.echo_cancel"
                node.description = "Echo Cancelled Sink"
            }

            # WebRTC settings for echo cancellation
            aec.args = {
                webrtc.gain_control = true
                webrtc.extended_filter = true
                webrtc.experimental_agc = true
                webrtc.noise_suppression = true
                webrtc.ns_level = 2  # 0 = low, 3 = high
            }
        }
    }
]