Analyze a sound file into a spectrogram

Current version

arss requires the following formulae to be installed:
cmake 3.11.1 Cross-platform make
fftw 3.3.7_1 C routines to compute the Discrete Fourier Transform

Recent formula history

mikit arss: add test
Miguel Araújo arss: fix audit --warning
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Jaime Marquínez Ferrándiz Batch convert http download urls from SourceForge to https

Formula code at GitHub