Chrome Flags Reference

--use-file-for-fake-audio-capture

What does --use-file-for-fake-audio-capture do?

Play a .wav file as the microphone. Note that for WebRTC calls we'll treat the bits as if they came from the microphone, which means you should disable audio processing (lest your audio file will play back distorted). The input file is converted to suit Chrome's audio buses if necessary, so most sane .wav files should work. You can pass either <path> to play the file looping or <path>%noloop to stop after playing the file to completion. Must also be used with kDisableAudioInput or kUseFakeDeviceForMediaStream.

Usage

chrome --use-file-for-fake-audio-capture

const browser = await puppeteer.launch({
  args: ['--use-file-for-fake-audio-capture']
});

const browser = await chromium.launch({
  args: ['--use-file-for-fake-audio-capture']
});

from selenium import webdriver

options = webdriver.ChromeOptions()
options.add_argument('--use-file-for-fake-audio-capture')

driver = webdriver.Chrome(options=options)