Hi @bruno.tx,
I tested the image with the configuration you provided and the given script, and I successfully connected to the phone. The call works fine, but there’s noticeable echo. To fix this, I used the script mentioned in this link to enable the echo canceller. However, upon execution, I encountered the following errors:
Loading echo cancellation module
Failure: Module initialization failed.
Setting echo cancellation as default sink and source
Failure: No such entity
Failure: No such entity.
To investigate further, I configured PulseAudio in debug mode by modifying the script and replacing pulseaudio --start with:
pulseaudio -v > pulseaudio_log.txt 2>&1 &
Additionally, I edited the daemon.conf file with the following command to enable debug logging:
vi /etc/pulse/daemon.conf
Then, I set the log level to debug:
log-level = debug
In the log file (pulseaudio_log.txt), I noticed the system is reporting the following issue:
E: [pulseaudio] module-echo-cancel.c: Master sink not found
E: [pulseaudio] module.c: Failed to load module "module-echo-cancel" (argument: "sink_name=echosink source_name=echosource aec_method=webrtc aec_args=analog_gain_control=0\ digital_gain_control=1 source_master=alsa_input.hw_0_0 sink_master=alsa_output.hw_0_0"): initialization failed.
Additionally, I directly tried the following command:
pactl load-module module-echo-cancel
25
pactl load-module module-echo-cancel aec_method=webrtc
Failure: Module initialization failed
And I received the following error:
E: [pulseaudio] module-echo-cancel.c: Invalid echo canceller implementation 'webrtc'
E: [pulseaudio] module.c: Failed to load module "module-echo-cancel" (argument: "aec_method=webrtc"): initialization failed.
Do you have any suggestions or additional steps to resolve this issue?
Thanks and best regards,
Ferran