ComfyUI Voice Clone

Custom TTS node that clones voice from a reference audio and speaks entered text.

Install Models

--  ComfyUI/models/tts/chatterbox/
    |-- conds.pt
    |-- s3gen.safetensors
    |-- t3_cfg.safetensors
    |-- tokenizer.json
    |-- ve.safetensors

All required files above can be downloaded from https://huggingface.co/ResembleAI/chatterbox/tree/main

Settings

| Setting | Description | | -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | exaggeration | Controls the expressiveness / prosody of the generated voice. Higher values make the speech more emphatic and varied; lower values produce a flatter, more neutral delivery. Valid range: 0.25 - 2.0. | | temperature | Sampling temperature for the text-to-speech decoder. Higher values increase randomness and variety in the generated audio; lower values make outputs more conservative and deterministic. Valid range: 0.05 - 5.0. | | cfg_weight | Classifier-free guidance (CFG) weight that balances adherence to the text conditioning vs. model priors. Larger values force the model to follow the conditioning (text/prompt) more strongly, which can improve faithfulness but may increase artifacts if set too high. Valid range: 0.05 - 1.0 | | min_p | A lower-probability cutoff used during sampling to filter extremely unlikely tokens or frames. Helps avoid very low-probability outputs that could degrade quality. Valid range: 0.0 - 1.0 | | top_p | Nucleus (top-p) sampling cumulative probability threshold. The decoder samples from the smallest set of tokens whose cumulative probability ≥ top_p. top_p = 1.0 disables nucleus filtering (i.e., sample from full distribution). Valid range: 0.0 - 1.0 | | repetition_penalty | Penalizes repetition during generation. Values > 1.0 discourage repeating the same tokens/frames, reducing looping/redundancy in speech. Valid range: 1.0 - 2.0 | | voice_embedding (optional) | If provided, an audio reference is used as an audio prompt for voice cloning. |

About

This custom node uses resemble-ai/chatterbox under the hood.