How to change the audio input ,which means ecoute take input audio from system speaker not from mic?

[Shamlan123]

Please help me to change the files to take audio input from system speaker (only from the teams or google meet audio) not from the mic of the system.
How to change and what to change in the main.py,AudioRecorder.py and AudioTranscriber.py files for getting input from audio from the system speaker.