Echo cancellation module not working

[jmah8]

After running mic_over_mumble and confirming everything works, I tried adding a echo-cancel module from PulseAudio but it doesn't seem to be working as the VirtualMic is still picking up audio from my speakers.

The code I used for loading the module in was:
pactl load-module module-echo-cancel use_master_format=1 aec_method=webrtc aec_args="analog_gain_control=0\ digital_gain_control=1\ noise_suppression=1" source_name=echoCancel_source sink_name=echoCancel_sink