Frequency Analysis of Audio Signals

Frequency-domain analysis: the upper view shows the time-domain

Frequency Resolution - FasterCapital

Estimate fundamental frequency of audio signal - MATLAB pitch

Intro. to Signal Processing:Harmonic analysis

Audio Tools

The fast continuous wavelet transformation (fCWT) for real-time

Time and frequency domains

Practical Introduction to Frequency-Domain Analysis - MATLAB

Blind audio source separation based on time-frequency structure