YouTube error · Common
"YouTube has no sound" — find which layer is silent
Video plays but audio is silent. The pause/play button works, the playhead advances, but you hear nothing. Different from "audio renderer error" (which throws a popup) — this is silent failure, which means the issue is somewhere in the volume chain rather than the audio pipeline crashing.
Why this happens
- Video itself is muted by an autoplay-mute policy (a single click on the player un-mutes).
- Browser tab is muted via Chrome's right-click → Mute tab.
- OS-level volume mixer set YouTube to 0 (Windows has per-app volume).
- Wrong audio output device selected (sound is playing to disconnected Bluetooth headphones).
- Browser audio policy blocked because the page wasn't interacted with first.
How to fix it
- 1
Click the speaker icon in the player
Autoplay-mute is the #1 cause and the fix is one click. The speaker icon shows whether the player is muted.
- 2
Right-click the tab → unmute tab
Chrome and Firefox can mute individual tabs without showing it on the player UI. Check this if the speaker icon already shows un-muted.
- 3
Check the OS volume mixer for YouTube specifically
Windows: right-click volume → Open Volume Mixer → look for Chrome/Firefox slider. macOS: System Settings → Sound → no per-app split here, so check the output device. Linux: pavucontrol → Playback.
- 4
Verify the correct audio output device is selected
Bluetooth headphones that disconnected silently are a common culprit. Right-click volume icon → check active output.
- 5
Try a different video
Some videos genuinely have silent audio tracks (testing uploads, b-roll footage, glitched recordings). If a known-good video plays sound but the target one doesn't, it's the source.