Audio Issues

TTS and media sounds play through the OBS browser source. If you can't hear anything, the issue is almost always in OBS audio routing.

1. Check OBS Browser Source Audio Monitoring

By default, OBS browser sources are captured for stream/recording but not monitored through your speakers. This means you won't hear TTS or alerts in your headphones even though they're being streamed.

To fix:

1. In OBS, open the Audio Mixer (bottom panel).
2. Find the browser source audio track.
3. Click the gear icon → Advanced Audio Properties.
4. Set Audio Monitoring to Monitor and Output (to hear it yourself) or Monitor Only (to hear it but not stream it).

Most streamers want Monitor and Output so they hear alerts at the same time as viewers.

2. Make Sure the Browser Source Isn't Muted

In the OBS Audio Mixer, check that the browser source isn't muted (speaker icon shouldn't have a slash). Also check the volume slider isn't at zero.

3. Check Volume Settings in the Dashboard

For TTS: open TTS settings and confirm the Volume slider is above 0.

For media: open the Media section and check the per-item volume as well as the global media volume.

4. Verify the Widget Is on the Canvas

Audio-only widgets (like a TTS-only configuration) still require the widget to be present in the Compositor canvas. If the TTS widget has been removed from the canvas, TTS audio won't play.

5. Test with a Known-Good Sound

In the dashboard, go to Alerts and click Test on any alert type. If you hear the test alert, the audio pipeline is working — the issue may be with TTS specifically or media item configuration.

For TTS, use the TTS test button or send a !tts hello from chat to queue a test message.

6. Browser Source Must Be Active in OBS

If the browser source is in a scene that's not currently active, it may be stopped (depending on your OBS settings). Switch to the scene containing your overlay, or check "Keep audio source active when not visible" in the browser source properties.

7. OBS on macOS: Enable Browser Audio Output

On macOS, OBS requires additional setup to capture browser audio. Make sure you have a virtual audio device (like BlackHole or Loopback) configured and the browser source audio routed through it.

Still No Audio?

Open the overlay URL directly in Chrome or Firefox (not OBS). Play a test alert from the dashboard. If you hear it in the browser but not in OBS, the issue is OBS audio routing. If you hear nothing in the browser, check the browser's site permissions — make sure audio autoplay is allowed for 4throck.cloud.