Towards High Sampling Rate Sound Synthesis on FPGA

Romain Michon; Julien Sourice; Victor Lazzarini; Joseph Timoney; Tanguy Risset
DAFx-2023 - Copenhagen
This “Late Breaking Results” paper presents an ongoing project aiming at providing an accessible and easy-to-use platform for high sampling rate real-time audio Digital Signal Processing (DSP). The current version can operate in the megahertz range and we aim to achieve sampling rates as high as 20 MHz in the near future. It relies on the Syfala compiler which can be used to program Field Programmable Gate Array (FPGA) platforms at a high level using the FAUST programming language. In our system, the audio DAC is directly implemented on the FPGA chip, providing exceptional performances in terms of audio latency as well. After giving an overview of the state of the art of this field, we describe the way this tool works and we present ongoing and future developments.