Spek is already pretty fast at analyzing audio files and creating their spectrograms. Apparently, it can be made even faster! A sizable chunk of processing time is spent calculating discrete Fourier transforms of audio samples. In this post I'm going to explore a few DFT libraries and compare their performance to what Spek is currently using.
Faster Fast Fourier Transform
Faster Fast Fourier Transform
Faster Fast Fourier Transform
Spek is already pretty fast at analyzing audio files and creating their spectrograms. Apparently, it can be made even faster! A sizable chunk of processing time is spent calculating discrete Fourier transforms of audio samples. In this post I'm going to explore a few DFT libraries and compare their performance to what Spek is currently using.