GET

/v1/schemas/fal/audio/resemble-ai/chatterboxhd/text-to-speech

Accept:

kind inputactivity audiohash 9465194f…extracted Jul 6, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. Source trace `d87a3ffbd26276697e137ecb9a5b7f701b888db27e4a4e4b17c1cbc4435bc0a7` { "fetchedAt": 1783330412, "extractorVersion": "1", "verifiedAt": null }

Request body

8 properties · 0 required · 0 $defs

property	type	description	constraints
text	string	Text to synthesize into speech.	default: "My name is Maximus Decimus Meri…
exaggeration	number	Controls emotion exaggeration. Range typically 0.25 to 2.0.	0.25 ≤ n ≤ 2 · default: 0.5
high_quality_audio	boolean	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.	default: false
voice	enum	The voice to use for the TTS request. If neither voice nor audio are provided, a random voice will be used.	Aurora \| Blade \| Britney \| Carl \| Cliff \| Richard · +3 more
audio_url	string	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.
temperature	number	Controls the randomness of generation. Range typically 0.05 to 5.	0.05 ≤ n ≤ 5 · default: 0.8
seed	integer	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.	n ≥ 0 · default: 0
cfg	number	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 speaki…	0 ≤ n ≤ 1 · default: 0.5

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"resemble-ai/chatterboxhd/text-to-speech","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}