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Linear Predictive Perceptual Filtering For Acoustic Vector Sensors: Exploiting Directional Recordings For High Quality Speech Enhancement, Muawiyath Shujau, Christian Ritz, Ian Burnett

Dr Muawiyath Shujau

This paper investigates the performance of a new technique for speech enhancement which combines Linear Predictive (LP) spectrum-based perceptual filtering to the recordings obtained from an Acoustic Vector Sensor (AVS). The technique takes advantage of the directional polar responses of the AVS to obtain a significantly more accurate representation of the LP spectrum of a target speech signal in the presence of noise when compared to single channel, omni-directional recordings. Comparisons between the speech quality obtained from the proposed technique and existing beamforming-based speech enhancement techniques for the AVS are made through Perceptual Evaluation of Speech Quality (PESQ) tests and …