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How to Change Your Assistant's Voice and Language
Open your assistant, click its name to see available voices, and select a new one — some show 'preview unavailable' but can still be selected. Use the three-dot Voice Menu to adjust response speed, interruption sensitivity, talk speed, emotional tone and language, choosing from 25+ supported languages, then save.
Assistants speak in 25+ languages with natural, low-latency voices — this covers where to change the voice, the language, and the speech-quality settings that affect how it actually sounds on a call.
Steps
- Open the Assistants section.
- Select the assistant whose voice you want to change.
- Change the voice. Click the assistant’s name at the top of the screen to see the list of available voices. If a voice shows “preview unavailable,” you can’t listen to it first, but you can still select it.
- Add or clone a voice if you need a new one or want to clone the current one.
- Open the Voice Menu from the three-dot menu next to the assistant’s name.
- Adjust settings: response speed, sensitivity to interruption, talk speed, emotional tone and language.
- Enable recommended settings: turn on speech-friendly formatting and back channeling for the best call experience.
- Save changes.
Cautionary notes
Be cautious selecting a “preview unavailable” voice since you can’t hear it in advance. Make sure every setting change matches the intended use of the assistant — a mismatch here shows up as miscommunication on real calls.
Tips
Get familiar with the available voices and their characteristics so future changes are faster. Keep a mental checklist of the two recommended settings (speech-friendly formatting, back channeling) so they stay enabled after any voice change.
Next step
If a call still doesn’t sound right after adjusting these settings, revisit how to create your chat and voice assistant for the noise-handling and voicemail settings.