Speech Enhancement Using Feedback Particle Filter

The paper presents a new speech enhancement algorithm using feedback particle filter. The innovation error based feedback structure is the decisive factor for Feedback particle filter. The robustness is key feature, this variant is found to improve the performance of the system reducing MSE as compared to conventional particle filter at even lower no of particles, without much preprocessing or modeling, gain and innovation error depends on values of variance and means of particle hence dynamically generated. The feedback particle filter outperforms a conventional particle filter.