Recording Has No Audio

Fix silent Supademo screen recordings: unmute the mic in the recorder, pick the right input device, and grant Chrome and macOS microphone permissions.

Your Supademo screen recording captured the video perfectly, but playback is silent — no narration, no system sound, or the microphone track is missing entirely. Audio problems almost always come from one of three layers: the recorder's own mute and device settings, the browser's microphone permission, or the operating system's privacy permissions. Check them in that order.

Common causes and fixes

1. The microphone was muted in the recorder. Clicking the mic icon in the Supademo recorder mutes your recording, and no audio is captured at all — it's the single most common cause of silent recordings. Fix: before hitting Record, confirm the mic icon isn't in its muted state, and speak a test phrase in a short trial recording.

2. The wrong input device is selected. The recorder setup lets you choose which microphone and camera to use. If it's pointed at a device that isn't receiving sound — a disconnected headset, a muted external interface, AirPods that switched away — the track records silence. Fix: in the recorder's setup, select the microphone you're actually speaking into, and check the device's own hardware mute switch.

3. Chrome doesn't have microphone access for Supademo. If you dismissed or denied the browser's mic prompt, Chrome blocks the input without further warnings. Fix: click the lock/tune icon in the address bar on the recording page, set Microphone to Allow, then reload and re-record. You can also check chrome://settings/content/microphone for a block entry.

4. macOS hasn't granted screen recording and microphone permissions. On macOS, Chrome itself needs permission before any site or extension can capture your screen or mic. Fix: open System Settings → Privacy & Security, enable your browser under both Microphone and Screen Recording, then quit and reopen the browser — macOS only applies these permissions after a restart of the app.

5. System audio wasn't enabled for the recording. Narration and computer audio are separate: when starting a recording you choose whether to record your computer's audio. If you skipped that option, in-app sounds and video audio won't be on the track. Fix: enable the computer audio option in the recorder before recording. When picking what to share, choosing a Chrome tab and ticking Also share tab audio is the most reliable way to capture in-page sound.

6. Another app is holding the microphone. Zoom, Meet, Teams, or other recording software can claim exclusive access to the mic, leaving nothing for the browser. Fix: quit conferencing and recording apps fully, then start the Supademo recording again.

If the recording is otherwise good, you don't have to redo it: you can trim or split the clip with the built-in editor, or add a voiceover afterwards instead of re-recording — see Screen and Camera Recording for the editing tools.

Still not working?

Email [e-mail] with a link to the silent recording, your operating system and browser version, and the microphone you were using. A screenshot of the recorder's device settings helps the team spot the mismatch quickly. For general questions, see the FAQs.