Performance Evaluation of Beamforming Techniques for Speech Enhancement

被引：0

作者：

Rakesh, Pogula ^{[1
]}

Priyanka, S. Siva ^{[1
]}

Kumar, T. Kishore ^{[1
]}

机构：

[1] NIT Warangal, Dept Elect & Commun Engn, Warangal 506004, Telangana, India

来源：

2017 FOURTH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, COMMUNICATION AND NETWORKING (ICSCN) | 2017年

关键词：

Speech enhancement; Delay and Sum beamformer; Generalized Side lobe Canceller; Signal to Noise Ratio; Spatial Response;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents speech enhancement using fixed and adaptive beamforming techniques to improve quality of speech signal in noisy environment. Microphone arrays provide a means of enhancing a desired signal in the presence of corrupting noise sources using spatial filtering. In this paper, Delay and Sum Beamformer (DSB) and Generalized Side lobe Canceller (GSC) beamformer are implemented using microphone array and their performance are evaluated by considering various noises under different SNR levels. Enhanced speech characteristics are represented in time domain and frequency domain. The interference is nullified and the beamformer is steered towards desired direction using spatial response. An enhanced speech with improved SNR is achieved by generalized side lobe canceller with Least Mean Square (LMS) algorithm than Delay and Sum beamformer.

引用

页数：5

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