A custom node extension for ComfyUI that adds text-to-speech (TTS) and voice conversion (VC) capabilities using the Chatterbox library. Supports a MAXIMUM of 40 seconds. Iv tried removing this limitation, but the model falls apart really badly with anything longer than that, so it remains.

Installation

Clone this repository into your ComfyUI custom_nodes directory:

cd /path/to/ComfyUI/custom_nodes
git clone https://github.com/filliptm/ComfyUI_Fill-ChatterBox.git

Install the base dependencies:

pip install -r ComfyUI_Fill-ChatterBox/requirements.txt

(Optional) Install watermarking support:
```
pip install resemble-perth
```
Note: The resemble-perth package may have compatibility issues with Python 3.12+. If you encounter import errors, the nodes will still function without watermarking.

Usage

Text-to-Speech Node (FL Chatterbox TTS)

Add the "FL Chatterbox TTS" node to your workflow
Configure text input and parameters (exaggeration, cfg_weight, temperature)
Optionally provide an audio prompt for voice cloning

Voice Conversion Node (FL Chatterbox VC)

Add the "FL Chatterbox VC" node to your workflow
Connect input audio and target voice
Both nodes support CPU fallback if CUDA errors occur

Change Log

6/24/2025

Added seed parameter to both TTS and VC nodes for reproducible generation
Seed range: 0 to 4,294,967,295 (32-bit integer)
Enables consistent audio output for debugging and workflow control
Made Perth watermarking optional to fix Python 3.12+ compatibility issues
Nodes now function without watermarking if resemble-perth import fails

5/31/2025

Added Persistent model loading, and loading bar functionality
Added Mac support (needs to be tested so HMU)
removed the chatterbox-tts library and implemented native inference code.