C++ Implementation Accelerates Audio Model by 200x
Acceptable-Cycle4645 · reddit · 2026-07-16
The author released an ultra-fast C++ implementation for Supertonic 3 within audio.cpp, aiming to build a unified local runtime for audio models.
Key Results
- Achieves 200×+ real time on an RTX 5090
- Achieves 6×+ real time on a CPU
- TTFT is approximately 47 ms in CUDA streaming mode
- A demo generated roughly 10 hours of audio for "The Adventures of Sherlock Holmes" in just about 3 minutes
Project Direction
The author hopes audio.cpp will eventually cover:
- TTS
- ASR
- Voice cloning
- Long-form audio generation
- Server-like usage
The goal is to avoid relying on separate Python environments and custom runtimes for every individual model.
Related event: audio.cpp Update Boosts Local Audio Generation Speed by 200x(2 posts)→
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