2 Mar 2021
editar o ficheiro /etc/pulse/default.pa e acrescentar no final:
load-module module-echo-cancel source_name=logitechsource source_properties=device.description=LogitechHD
set-default-source logitechsource
para evitar que o módulo ajuste automaticamente o volume:
load-module module-echo-cancel aec_method=webrtc aec_args="analog_gain_control=0 digital_gain_control=1"
https://askubuntu.com/questions/18958/realtime-noise-removal-with-pulse…
https://wiki.archlinux.org/index.php/PulseAudio#Microphone_echo/noise_c…