Multichannel Wiener Filter with Early Reflection Raking for Automatic Speech Recognition in Presence of Reverberation

Typical hands-free voice capturing relies on recording a distant speaker using an array of microphones. When speech signal is recorded in a reverberant environment, the microphones capture speech corrupted by room reverberation. Increasing the distance between the speaker and recording microphones, the power ratio of the direct and late room reverberation signals is decreased, which in turn decreases the accuracy of automatic speech recognition....