Binaural extension and performance of single-channel spectral subtraction dereverberation algorithms

Single-channel spectral subtraction algorithms are commonly used to suppress late reverberation. A binaural extension of such methods, apart from suppressing reverberation without introducing processing artifacts, should also preserve the signal’s binaural localization cues. Here, three state-of-the-art spectral subtraction dereverberation algorithms are extended into a binaural context utilizing three alternative bilateral gain adaptation schemes and are compared to an extension derived from a Delay and Sum Beamformer. Objective results for several experimental conditions reveal the most prominent binaural extensions.

• Type: Journal
• Year: 2011
• Where: ICASSP
• Authors: Alexandros Tsilfidis, Eleftheria Georganti, John Mourjopoulos
• Keywords: Binaural Extensions, Binaural Localization Cues, ICASSP 2011, Signal Processing, Spectral Subtraction