Howtosignalprocessing
What is onset detection?
Onset detection is concerned with finding the start of a musical note immediately preceding the attack. Onset detection in conjunction with pitch detection are utilized in various processes such as pitch-shifting, synthesis, adaptive filtering and envelope generation, to name a few.
What is onset detection in music?
The audio signal is often considered to be a succession of the discrete acoustic events. The term music onset. detection refers to detection of the instant when a discrete event begins in a music signal.
What is onset strength?
Onset strength at time t is determined by: mean_f max(0, S[f, t] - ref[f, t - lag]) where ref is S after local max filtering along the frequency axis 1. By default, if a time series y is provided, S will be the log-power Mel spectrogram.
