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Chatterboxhd

Text to speech

Generate expressive, natural speech with Resemble AI's Chatterbox. Features unique emotion control, instant voice cloning from short audio, and built-in watermarking.

Input

Fields marked * are required. Review the price before generating.

Text to synthesize into speech.

Tips and requirements

URL to the audio sample to use as a voice prompt for zero-shot TTS voice cloning. Providing a audio sample will override the voice setting. If neither voice nor audio_url are provided, a random voice will be used.

Uploading a file needs an account. Create accountMP3, WAV · up to 50 MB

Additional settings

The voice to use for the TTS request. If neither voice nor audio are provided, a random voice will be used.

Controls emotion exaggeration. Range typically 0.25 to 2.0.

Tips and requirements

Classifier-free guidance scale (CFG) controls the conditioning factor. Range typically 0.2 to 1.0. For expressive or dramatic speech, try lower cfg values (e.g. ~0.3) and increase exaggeration to around 0.7 or higher. If the reference speaker has a fast speaking style, lowering cfg to around 0.3 can improve pacing.

Tips and requirements

If True, the generated audio will be upscaled to 48kHz. The generation of the audio will take longer, but the quality will be higher. If False, the generated audio will be 24kHz.

Tips and requirements

Useful to control the reproducibility of the generated audio. Assuming all other properties didn't change, a fixed seed should always generate the exact same audio file. Set to 0 for random seed.

Controls the randomness of generation. Range typically 0.05 to 5.

Price$0.07 / run

You sign up first. Your settings are kept.

API code for this input

Complete the required fields and fix input errors to see API code.

How to use Chatterboxhd

Getting started

Turn your text into speech with Chatterboxhd and its voice controls.

Review your result

Listen for names, pronunciation, pauses, clipping and the intended tone before publishing.

Inputs and settings

Enter non-empty text. The reserved USD amount covers the complete text, including multibyte characters; final billing uses recorded provider usage.

An optional reference audio guides the voice. Review temperature, exaggeration and CFG; HD also offers 48 kHz output.

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