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KokoClone

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What is KokoClone?

KokoClone is a fast, real-time compatible multilingual voice cloning system built on top of Kokoro-ONNX, one of the fastest open-source neural TTS engines available today.

It allows you to:

• Type text in multiple languages
• Provide a short 3–10 second reference audio clip
• Instantly generate speech in that same voice

Just text → voice → cloned output.

Why Kokoro?

KokoClone is powered by Kokoro-ONNX, a highly optimized neural TTS engine designed for:

• Extremely fast inference
• Natural prosody and expressive speech
• Lightweight ONNX runtime compatibility
• Real-time deployment on CPU
• Even faster performance with GPU

Unlike many heavy TTS systems, Kokoro is lightweight and responsive — making KokoClone suitable for real-time applications, voice assistants, demos, and interactive tools.

Features

Multilingual Speech Generation

Generate native speech in:

• English (en)
• Hindi (hi)
• French (fr)
• Japanese (ja)
• Chinese (zh)
• Italian (it)
• Portuguese (pt)
• Spanish (es)

Zero-Shot Voice Cloning

Upload a short voice sample and KokoClone transfers its vocal characteristics to the generated speech.

Real-Time Friendly

Built on Kokoro’s efficient ONNX runtime pipeline, KokoClone runs smoothly on:

• Standard laptops (CPU)
• Workstations (GPU)

Automatic Model Handling

On first run, required model files are downloaded automatically and placed in the correct directories.

Built-in Web Interface

Includes a clean and responsive Gradio UI for quick testing and demos.

Live Demo

Try it instantly without installing anything:

👉 KokoClone on Hugging Face Spaces

Installation

Recommended: Use conda for a clean environment.

Clone the Repository

git clone https://github.com/Ashish-Patnaik/kokoclone.git
cd kokoclone

Create Environment

conda create -n kokoclone python=3.12.12 -y
conda activate kokoclone

Install Dependencies

CPU Installation (Recommended for most users)

pip install torch torchaudio --index-url https://download.pytorch.org/whl/cpu
pip install -r requirements.txt

GPU Installation (NVIDIA users)

pip install -r requirements.txt
pip install kokoro-onnx[gpu]

Usage

KokoClone can be used in three ways:

Web Interface

Launch the Gradio app:

python app.py

Then open the browser interface to:

• Enter text
• Select language
• Upload a reference voice
• Generate cloned speech

Command Line

python cli.py --text "Hello from KokoClone" --lang en --ref reference.wav --out output.wav

Python API

from core.cloner import KokoClone

cloner = KokoClone()

cloner.generate(
    text="This voice is cloned using KokoClone.",
    lang="en",
    reference_audio="reference.wav",
    output_path="output.wav"
)

Project Structure

app.py              → Gradio Web Interface
cli.py              → Command-line tool
core/cloner.py      → Core inference engine
inference.py        → Example usage script
model/              → Downloaded TTS model weights
voice/              → Voice embeddings

Use Cases

• Voice assistant prototypes
• Real-time TTS demos
• Multilingual narration tools
• Content creation
• Research experiments
• Interactive AI applications

Acknowledgments

This project builds upon:

• Kokoro-ONNX — for fast and efficient neural speech synthesis
• Kanade Tokenizer — for voice conversion architecture

License

Licensed under the Apache 2.0 License.