On the Use of Phase and Energy for Musical Onset Detection in the Complex Domain
Juan Pablo Bello, Chris Duxbury, Mike E. Davies, Mark B. Sandler · IEEE Signal Processing Letters · 2004
We present a study on the combined use of energy and phase information for the detection of onsets in musical signals. The resulting method improves upon both energy-based and phase-based approaches. The detection function, generated from the analysis of the signal in the complex frequency domain is sharp at the position of onsets and smooth everywhere else. Results on a database of recordings show high detection rates for low rates of errors. The approach is more robust than its predecessors both theoretically and practically.