AUDIO SPECTRAL ANALYSIS USING THE WINOGRAD FOURIER TRANSFORM
JAS ANGUS, M WHITAKER · 2024
Spectral analysis is the basis of many audio measurement systems, e.g.noise meters, TDS systems, etc.Currently this analysis may be done in real-time via special purpose analogue or digital hardware or in non real-time via software.In many cases a real-time (or near real-time) analysis is necessary and so the instrument designer is forced to grapple with the problems and additional cost of special purpose hardware.It would be desirable to be able to perform real-time spectral analysis using standard microprocessor components as these offer both cost and development advantages.