Screen and audio

Record a screen with microphone narration and optional source audio.

On this page

Screen + audio is the default mode. The video comes from getDisplayMedia; microphone sound comes from getUserMedia. If both live audio tracks exist, Web Audio produces one mixed track for MediaRecorder.

How to use it

  1. Choose Screen + audio and enable the audio sources you need.
  2. Choose your folder, start, and approve each browser request. In the display picker, explicitly share audio when available.
  3. Verify the microphone and shared-audio indicators. If shared sound is missing, stop and select a supported source again.

Limits and safety

A checked Shared audio option requests sound but cannot force the browser to supply it. If the microphone remains available, recording can proceed with a warning and microphone sound only. The muted preview is intentional; verify the saved file for a real audio test.

References