Directivity characteristics of adaptive microphone-array for noise reduction(AMNOR).

High-speed Noise Cancellation with Microphone Array

We propose the use of a microphone array based on independent component analysis as a method for high-speed elimination of noise in speech input to mobile terminals. The effectiveness of the proposed method is confirmed by evaluation experiments that reproduce an actual mobile environment.

A Microphone Array with Adaptive Post-filtering for Noise Reduction in Reverberant Rooms

Speech comunication is often disturbed by acoustic room noise in the environment of the speaker. This paper presents a self-adapting noise reduction system which is based on a 4-microphone array combined with an adaptive post-filtering scheme. Noise reduction is achieved by utilizing the directivity gain of the array and by reducing the residual noise through post-filtering of the received micr...

Microphone Array for Headset with Spatial Noise Suppressor

This paper presents a hybrid microphone array architecture used for processing the signals from a small microphone array that is used in a headset. The processing chain consists of fixed end-fire beamforming, adaptive spatial noise reduction and stationary noise suppression. The far-field design algorithm used for the fixed beamformer is adapted to the specifics of the headset by compensating f...

Adaptive Sub band GSC Beam forming using Linear Microphone-Array for Noise Reduction/Speech Enhancement

3 Acknowledgement 5 List of Tables 9 List of Figures 10

Microphone Array Post-Filtering For Non-Stationary Noise Suppression