===== Echo/Noise cancellation on Debian =====
Create a file /etc/pulse/default.pa.d/cancellation.pa
<code>
.ifexists module-echo-cancel.so
load-module module-echo-cancel aec_method=webrtc source_name=echocancel sink_name=echocancel1
set-default-source echocancel
set-default-sink echocancel1
.endif
</code>

On your desktop console:
<code>
pulseaudio -k
</code>

==== References ====
  * https://www.linuxuprising.com/2020/09/how-to-enable-echo-noise-cancellation.html