You can't hear the read-aloud translation

Reading translations aloud has several requirements, so check them one by one.

1. Are headphones plugged in? The voice plays only into headphones, not out of the speakers. The read-aloud bar shows Plug in headphones to hear the translation read aloud if they aren't.
2. Is the Read aloud switch on?
3. The display mode must be Bilingual or Translation only. In Transcript only, the read-aloud bar is hidden.
4. Are you recording, and is it paused? The app reads aloud only while recording, not while paused.
5. Are they the right headphones? If your Mac is playing to another device, the bar shows Headphones are connected, but the Mac is playing to something else. Click Choose headphones and pick the right device.
6. Is the voice volume too low? Adjust it on the read-aloud bar.
7. Voice plays in (Both ears / Left ear / Right ear): if you set one ear, check that it's the right one. Mono or hands-free headphones can't set an ear.

The cloud voice doesn't read

If you see the banner Cloud voice failed — reading with the on-device voice, the provider has a problem (wrong key, out of characters, or no network) and the app is temporarily using the Apple voice. See Cloud connection and API key errors.

If you see Read-aloud unavailable, neither the cloud voice nor the on-device voice could read. Try choosing Apple (on-device) under Voice provider.

Sonasi TTS isn't in the list

Sonasi TTS appears only after you've downloaded the model and when the target language is Vietnamese. Download it in Local models, see Models on your Mac.

Recording quality drops with Bluetooth headphones

Bluetooth headphones can lower the microphone quality when you listen and record at the same time. Turn on Use the Mac's mic with Bluetooth headphones in Settings → Voice to use your Mac's microphone instead.

See the setup steps again in Read translations aloud into your headphones.