FastWave: Developing the Lightest Diffusion Model for BWE

Discover how FastWave enhances audio quality with a lightweight diffusion model.

3 min readTechnology

Hello, Habr! I'm Nikita Kuznetsov, a student at the AI Services and Platforms workshop at the Higher School of Economics and VK. I want to share the journey and technical insights behind our project, FastWave. Under the guidance of Maxim Kaledin, an associate professor at HSE, and Alexander Tarakanov, an AI researcher at VK and also an associate professor at HSE, we created a lightweight diffusion model aimed at restoring high-frequency sound details, known as Bandwidth Extension (BWE). This innovative model boosts the sampling rate of any audio to professional quality at 48 kHz, while maintaining a compact size of just 1.3 million parameters and ensuring rapid processing speeds.

Technology