A fast, private GPU voice-morphing VST3 for Windows.
Load an RVC voice model, capture a vocal from your DAW, and transform it locally—without installing Applio.
Download FlowMorphZ • Installation • How to use • Community
FlowMorphZ is a native VST3 effect that captures vocals from the host timeline and transforms them with standard RVC .pth voice models. Its conversion engine, pitch analysis, model cache, and audio processing are bundled with the installer, so users do not need Applio, Python, or a separate AI package.
All voice processing runs locally on the computer. FlowMorphZ does not upload vocals or voice models.
- DirectML GPU acceleration with automatic CPU fallback
- Full-precision ContentVec and RMVPE processing
- Standard RVC v1/v2
.pthinference models - Optional matching
.indexsupport - One-time safe model compilation and reusable GPU-ready cache
- Persistent engine for fast repeat conversions
- Pre-model and post-model pitch control
- Pitch stabilization, consonant protection, envelope matching, character and mix controls
- Untouched source capture retained for clean reprocessing
- Host-timeline-aligned transformed playback
- Timeline-length 24-bit WAV export
- Complete
.flowmorphz.jsonpresets - Compatible with Flow Studio, FL Studio, REAPER, and other Windows VST3 hosts
- Windows 10 or Windows 11, x64
- A DAW with VST3 effect support
- Approximately 1.3 GB of free disk space after installation
- DirectX 12-capable GPU recommended
- A compatible RVC inference
.pthmodel
NVIDIA, AMD, and Intel DirectX 12 GPUs can use the DirectML path. A CPU compatibility path is included, but conversion will be slower.
- Open the latest release.
- Download
FlowMorphZ-VST3-Setup-2.0.0.exe. - Optionally verify its SHA-256 value against
SHA256SUMS.txt. - Run the installer.
- Rescan VST3 plug-ins in your DAW.
- Look for FlowMorphZ under Flow Studio.
The installer places the VST3 in the standard system VST3 folder and the private engine under C:\Program Files\Flow Studio\FlowMorphZ.
The current installer is not code-signed. Windows SmartScreen may show an unknown-publisher warning; verify the checksum before continuing.
- Record or import a clean vocal in your DAW.
- Insert FlowMorphZ as an effect on that vocal's mixer track.
- Press Load .PTH Model and select an RVC voice model.
- Optionally press Load .Index and select its matching index.
- Press Arm Capture.
- Play the vocal section in the DAW. FlowMorphZ captures only while the host transport is moving.
- Stop playback, then press Render Voice.
- Rewind and play the DAW timeline to hear the transformed vocal in place.
- Adjust the controls and render again whenever needed.
The first render with a new .pth compiles that model once into FlowMorphZ's private ONNX cache. Later renders reuse it. On the development RTX 2070 test system, a clean first use including compilation completed in about 33 seconds and the same warm conversion completed in about 2.4 seconds. Results vary with hardware and vocal length.
Save Preset stores the selected model path, optional index path, and every FlowMorphZ control in a .flowmorphz.json file. Captured vocals and converted audio are never embedded in preset files.
Use Load Preset to recall the setup. If a friend uses the preset, their model and index files must exist at the saved locations or be selected again.
FlowMorphZ supports standard RVC v1/v2 inference checkpoints. Training checkpoints, damaged files, and unrelated PyTorch .pth files are rejected. Voice-model creators may place separate terms on their models; only use models and source voices you have permission to use.
No. FlowMorphZ is free to download and use, but it is not open source. This public repository contains the download page, documentation, checksums, screenshots, and issue tracker only. GitHub automatically adds “Source code” archives to every release; those archives contain only these public documentation files, not the plug-in or engine source.
- Report reproducible bugs through GitHub Issues
- Join the YGS Discord community
- Read SUPPORT.md before filing a conversion problem
FlowMorphZ is free closed-source software. See LICENSE.md and THIRD_PARTY_NOTICES.md.