We've Released Voice Canvas as OSS: Easily Create Your Favorite Voice

Description and use

Voice Canvas is an open‑source CPU‑based voice conversion tool that lets users adjust eight vocal parameters via sliders, automatically selects and blends up to four reference anchors, and outputs WAV files.

Problem

Users need a way to transform voice timbre while preserving speech content, tempo, and intonation without requiring a GPU or complex setup.

Outcome

Voice Canvas enables users to create custom voices on CPU, with a 3‑minute demo video and 69 bundled anchors. Conversion times range from 2 to 3.5 minutes for 3–10 second clips.

Workflow

• Clone the Voice Canvas repo
• Clone the Seed‑VC repo
• Create a Python 3.10 virtual environment
• Install dependencies
• Run the app
• Select source audio (TTS, mic, or file)
• Adjust sliders or graph points
• Convert to generate takes
• Fine‑tune speed/pitch if needed
• Export WAV

Evidence

Voice Canvas is an app that changes voice timbre while preserving the original audio's speech content, tempo, and intonation.

Source

It runs without a GPU, though conversion on a CPU takes between one to several minutes per execution.

Source

The package includes 45 speakers from Common Voice Japanese (which has clear terms of use) and 24 speakers from JVNV (Japanese Natural Emotional Speech Corpus)...

Source