This item is available under a Creative Commons License for non-commercial use only
A technique for separating harmonic sound sources using FIR comb filters is presented. First, a pre-processing task is performed by a multipitch estimator to detect the pitches that the signal is composed of. Then, a method based on the Short Time Fourier Transform (STFT) is utilized to iteratively extract the harmonics belonging to a given source by using FIR comb filters. The presented approach improves upon exising sinusoidal model approaches in terms of the perceptual quality of the extracted signal.
Gainza, M., Lawlor, R. & Coyle, E. (2004) Harmonic sound source separation using FIR comb filters. 117th. AES (Audio Engineering Society) Convention , October 28-31, San Francisco, 2004.