A self-hosted dubbing studio that glues together every open-source voice model

What it does Voice-Pro is a Gradio-based web application that chains together audio processing tasks end-to-end: download a YouTube video, isolate vocals with Demucs, transcribe with Whisper variants, translate via Deep-Translator, and synthesize speech using Edge-TTS, kokoro, or zero-shot voice cloning through F5-TTS, E2-TTS, and CosyVoice. The target audience is podcasters, video creators, and developers building multilingual content pipelines.

The interesting bit The project is essentially a curated integration layer — a kitchen-sink approach to open-source speech AI. Rather than inventing new models, it wires together a dozen specialized tools (WhisperX for alignment, spaCy for sentence segmentation, yt-dlp for ingestion) and exposes them through a single browser interface. The maintainers have also assembled a small zoo of fine-tuned F5-TTS checkpoints for languages including Finnish, Hindi, and Japanese.

Key highlights

• Supports four Whisper variants for transcription, including timestamped and speaker-diarized outputs via WhisperX
• Zero-shot voice cloning through three different backends: F5-TTS, E2-TTS, and CosyVoice
• Built-in YouTube downloading and Demucs vocal separation, so the pipeline starts from a URL rather than a clean audio file
• Claims Windows + NVIDIA GPU as the verified platform; Mac and Linux support is mentioned but explicitly unverified
• Now fully open-sourced under LGPL after the maintainers shifted focus to a separate commercial project (WeConnect)

Caveats

• Active development has stopped; the README states updates are “not possible for the time being”
• Initial setup downloads a 9GB CosyVoice model, which the README warns may take over an hour
• The free version appears limited to 60-second media clips based on version history notes

Verdict Worth a look if you need a local, all-in-one dubbing workstation and don’t mind some assembly friction. Skip it if you want a polished SaaS experience or need reliable cross-platform support — this is a Windows-first project with maintenance on indefinite hold.