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Real-Time Voice Cloning

Clone any voice in 5 seconds to generate arbitrary speech in real-time.

Real-Time Voice Cloning

Transfer learning from speaker verification to multispeaker text-to-speech synthesis.

Free forever · source-available · Licence not stated in the repository
✓ Light setup✓ Browser-based✓ Real-time collaboration
6.1
ZEKAI
Dated deep learning project
Free & open source · Construction
Ease of setup4
Usefulness5
Maintenance5.5
Community9.8
★ 60,207
GITHUB
Mar 2026
UPDATED
Licence not stated in the repository
LICENSE
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⚡ Quick answer

This tool implements the SV2TTS deep learning framework using Python and PyTorch. It allows you to create a digital voice representation from a few seconds of audio and generate speech from arbitrary text.

Runs on
Cross-platform
Hosting
Desktop
Languages
Python
License
Licence not stated in the repository

What it is

It provides a three-stage deep learning pipeline including an encoder for speaker verification, a synthesizer based on Tacotron, and a WaveRNN vocoder. You can run it via a graphical toolbox or a command-line interface using Windows or Linux.

Who it's for

It suits developers and researchers looking to experiment with deep learning-based speech synthesis. It does not suit those needing production-ready, high-fidelity commercial audio quality out of the box.

Key features

5-Second Voice Cloning

Creates a digital representation of a voice from a few brief seconds of audio.

Real-Time Vocoder

Uses a WaveRNN vocoder to generate speech quickly on supported hardware.

Toolbox GUI

Includes a graphical interface for testing and interacting with the voice models.

Pretrained Models

Downloads necessary model checkpoints automatically from Hugging Face.

How to start

Up and running in 3 steps

1
Install FFmpeg and the uv package manager on your system.
2
Run the demo toolbox command specifying either CUDA or CPU execution.
3
Optionally download the LibriSpeech dataset or record your own audio samples.
Real talk

Our honest verdict

What's great

  • Implements the SV2TTS framework combining encoder, synthesizer, and vocoder stages
  • Includes both a graphical toolbox interface and a command-line interface
  • Supports running via CUDA for NVIDIA GPUs or CPU execution
  • Automatically downloads pretrained models from Hugging Face

Where it falls short

  • The repository author notes the codebase has aged and many SaaS apps provide better audio quality
  • Requires manual installation of FFmpeg and uv package manager
  • Optional dataset downloads like LibriSpeech are needed for full toolbox experimentation
  • Running efficiently requires an NVIDIA GPU and proper CUDA configuration
Cost

Pricing & license

The repository does not state a specific licence in its metadata, and there are no paid hosted options mentioned by the author. The only cost is running the hardware and managing dependencies yourself.

Paid work

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876 open remote AI-training roles, updated November 15, 2026; most pay $20–$170 an hour. Zekai lists them free; the application goes to the employer’s platform.

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Questions

FAQ

What hardware do I need?

You can run it on CPU or via an NVIDIA GPU with CUDA support.

Are models included?

Pretrained models are designed to download automatically from Hugging Face.

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