RVC-Realtime-GUI

A self-contained Windows desktop application for low-latency, real-time RVC voice conversion.

This release is a focused real-time inference client derived from RVC-WebUI. It is designed for live microphone use, virtual audio routing, and audio-file playback through a compact CustomTkinter interface.

Source code: niel-blue/RVC-Realtime-GUI

What's new in this release

This build includes the real-time inference performance updates introduced after 2026-07-18.

• CUDA Graph warm-up for lower per-chunk inference overhead after startup
• Updated real-time inference path and input/output noise-reduction fixes
• CUDA 12.8 runtime for current NVIDIA GPUs, including Blackwell-compatible environments
• Native ASIO buffer preservation: starts ASIO with the driver's preferred buffer size instead of allowing the high-latency default to select a larger buffer

Download

Open the Files and versions tab and download the archive that matches your NVIDIA GPU.

Package	Status	Use it when
RVC-Realtime-GUI_cu128_260729.7z	Current standard build	You use a current NVIDIA GPU, including Blackwell-compatible environments.
RVC-Realtime-GUI_cu118_260729.7z	Legacy build (available)	You use an older NVIDIA GPU that cannot use the CUDA 12.8 build.

Extract the archive to a short local path, for example C:\RVC-Realtime-GUI. Do not run it from inside the archive.

Quick start

1. Extract the downloaded archive.
2. Open the models folder.
3. Start RVC-Realtime-GUI-CUDA128.bat for the CUDA 12.8 package, or RVC-Realtime-GUI-CUDA118.bat for the CUDA 11.8 package.
4. Choose a model, audio devices, and press Start.

The package already contains its Python runtime, PyTorch/CUDA stack, FFmpeg, and inference assets. No separate Python, CUDA Toolkit, FFmpeg, or RVC-WebUI installation is required.

Adding models

Create one folder per model under models:

models/
  MyVoice/
    MyVoice.pth
    added_MyVoice.index
    preview.png

• The folder name is shown as the model name in the app.
• Put the model .pth and its added_*.index file in the same folder.
• An optional .png, .jpg, or .jpeg image in that folder is shown as the model preview.

Restart the app or use Reload after adding or changing a model.

Features

• Real-time RVC inference with CUDA Graph warm-up
• WASAPI and native ASIO audio-device routing
• Separate input, output, and monitor devices
• Model gallery with previews and model-specific general settings
• Audio-file input through bundled FFmpeg
• WAV recording: separate input/output files, mixed recording, or split L/R
• Japanese and English interface
• Runtime log viewer, log export, and recording status display

Notes

• This release is for Windows and NVIDIA GPUs.
• Start with conservative chunk and buffer settings, then lower latency only after confirming stable audio on your device chain.
• Native ASIO uses the driver's preferred hardware buffer size; RVC processing chunk length is kept separate from that setting.
• ASIO and WASAPI can differ substantially by driver and virtual-audio setup.
• RVC models are not interchangeable with this package unless they are valid RVC .pth models. Use only voices and audio material you are authorized to use.

License and attribution

RVC-Realtime-GUI is based on RVC-Project/Retrieval-based-Voice-Conversion-WebUI. See the included LICENSE and NOTICE.md files, and the source repository, for attribution and license details.