Comparison of Voice Activity Detection algorithms for VoIP

被引：43

作者：

Prasad, RV ^{[1
]}

Sangwan, A ^{[1
]}

Jamadagni, HS ^{[1
]}

Chiranth, MC ^{[1
]}

Sah, R ^{[1
]}

Gaurav, V ^{[1
]}

机构：

[1] Indian Inst Sci, CEDT, Bangalore 560012, Karnataka, India

来源：

ISCC 2002: SEVENTH INTERNATIONAL SYMPOSIUM ON COMPUTERS AND COMMUNICATIONS, PROCEEDINGS | 2002年

关键词：

D O I：

10.1109/ISCC.2002.1021726

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We discuss techniques for Voice Activity Detection (VAD) for Voice over Internet Protocol (VoIP). VAD aids in saving bandwidth requirement of a voice session thereby increasing the bandwidth efficiently. In this paper, we compare the quality of speech, level of compression and computational complexity for three time-domain and three frequency-domain VAD algorithms. Implementation of time-domain algorithms is computationally simple. However, better speech quality is obtained with the frequency-domain algorithms. A comparison of merits and demerits along with the subjective quality, of speech after removal of silence periods is presented for all the algorithms. A quantitative measurement of speech quality for different algorithms is also presented.

引用

页码：530 / 535

页数：6