A parametric formulation of the generalized spectral subtraction method

• Main Author: Sim, Boh Lim.
• Other Authors: Tong, Yit Chow
• Format: Theses and Dissertations
• Language: English
• Published: 2009
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
• Online Access: http://hdl.handle.net/10356/19657
• Institution: Nanyang Technological University

This thesis describes an acoustic noise suppression system for speech commu-nication applications when the noisy speech alone is available. Two short-time spectral amplitude estimators of the speech signal were derived and used for the system. The two estimators were derived based on a parametric formula-tion of the original generalized spectral subtraction method [6], [7], [21,pp. 509). The objective is to reduce the excessive level of residual noise and musical tone artifacts in the noise-suppressed speech commonly associated with the original method.