# Additive & Spectral: Partial Tracking

Partial tracking is the process of detecting single sinusoidal components in a signal and obtaining their individual amplitude, frequency and phase trajectories.

## Monophonic Partial Tracking

- STFT
A short term Fourier transform segments a signal into frames of equal length.

- Fundamental Frequency Estimation
YIN (de Cheveigné et al, 2002)

Swipe (Camacho, 2007)

- Peak Detection
For every STFT frame, local maxima are calculated in the range of integer multiples of the fundamental frequency.