Abstract
A constrained Kalman filtering algorithm based on auditory masking threshold is proposed for enhancing speech degraded by colored noise. The auditory masking threshold is used as a constraint to obtain a Kalman gain, which minimizes the estimate error variance under the constraint that the error power is smaller than the masking threshold. From the characteristics of the correlation vector, the power spectrum density and the masking threshold, a nonlinear constrained optimization problem is formed to calculate the Kalman gain. Simulation results show that the algorithm can improve subjective PESQ scores over both classic algorithms and recently published algorithms.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.