Title :
An enhanced method and behavioral model for noise cancellation in audio devices
Author :
Rana, Ram Singh ; Liang, Zhang ; Bin, Tang ; Krishna, Garg Hari
Author_Institution :
Institute of Microelectronics, Singapore
Abstract :
In this paper, a beamforming based enhanced method for noise/echo cancellation in audio devices such as hearing aids is presented. A modified two-element beamformer scheme is proposed as a possible solution for better cancellation of noise. An equivalent behavioral model compatible with ADS (advance design system) CAD environment is provided. Simulations are carried out using MATLAB and ADS. Simulation results are observed in compliance with the modified two-element beamformer for noise cancellation and the equivalent behavioral model. The electrical equivalent of the proposed model is found compatible for the whole system simulation of biomedical devices, where noise cancellation is one of the critical concerns.
Keywords :
CAD; biomedical electronics; biomedical equipment; echo suppression; electronic engineering computing; hearing aids; mathematics computing; CAD; MATLAB; advance design system; audio devices; beamforming-based enhanced method; behavioral model; biomedical devices; echo cancellation; hearing aids; noise cancellation; two-element beamformer; Array signal processing; Auditory system; Biomedical engineering; Design automation; Mathematical model; Microelectronics; Microphone arrays; Noise cancellation; Speech enhancement; Working environment noise;
Conference_Titel :
Biomedical Circuits and Systems, 2004 IEEE International Workshop on
Print_ISBN :
0-7803-8665-5
DOI :
10.1109/BIOCAS.2004.1454165