I have a problem with my Microphone. The fisrt time, my mic made a sound like a hot whistle kettle when i used zoom. I used the threads of many guys like Too much noise while recording sound from mic on 14.04 LTS
after that, the noise I noted my voice with distortion and the volume of my mic was rising even it was initiallty below 50%. I tried to many solution like
https://markandruth.co.uk/2017/10/18/fixing-ubuntu-16-04-massive-internal-microphone-distortion
Sound recorded by webcam microphone is distorted in 16.04
https://slimbook.es/tutoriales/linux/379-como-forzar-el-volumen-del-sistema-cuando-se-oye-muy-bajo
but the volume is always rising to the top even i fix below to 50% using:
+default mixer +pavucontrol +alsamixer
in the end, my voice is over saturated and worst
I appriaciated any helps