SPEECH ENHANCEMENT FOR MOBILE TELEPHONY

被引：39

作者：

GOULDING, MM

BIRD, JS

机构：

[1] School of Engineering Science, Simon Fraser University, Burnaby, BC

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 1990年 / 39卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1109/25.61353

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：

The properties of noise fields in automobile interiors are discussed with a view toward speech enhancement for the purpose of voice-activated mobile telephony. The limitations on performance of adaptive noise cancellation (ANC) are explained in the context of the spatial correlation properties of the noise field. A simple delay-equalized near-field array of directional microphones is analyzed and found to be effective for increasing the signal-to-noise density ratio (SNR) and reducing the reverberant distortion of the speech, without introducing any further distortion. Experimental results confirming the predicted performance are presented. © 1990, IEEE

引用

页码：316 / 326

页数：11

共 22 条

[1] IMAGE METHOD FOR EFFICIENTLY SIMULATING SMALL-ROOM ACOUSTICS [J].

ALLEN, JB ;

BERKLEY, DA .

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1979, 65 (04) :943-950

[2]

ANDRESDOTTIR E, 1983, 1983 P ICASSP BOST, P57

[3]

ARMBRUSTER W, 1986, P EUR SIGN PROC C EU, P391

[4] NOISE CANCELLATION FOR HEARING-AIDS [J].

CHAZAN, D ;

MEDAN, Y ;

SHVADRON, U .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1988, 36 (11) :1697-1705

[5] SPATIAL-CORRELATION FUNCTIONS FOR VARIOUS NOISE MODELS [J].

CRON, BF ;

SHERMAN, CH .

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1962, 34 (11) :1732-&

[6] ACOUSTIC NOISE-ANALYSIS AND SPEECH ENHANCEMENT TECHNIQUES FOR MOBILE RADIO APPLICATIONS [J].

DALDEGAN, N ;

PRATI, C .

SIGNAL PROCESSING, 1988, 15 (01) :43-56

[7]

DARLINGTON P, 1985, 1985 P ICASSP TAMP, P716

[8]

DEJONG RG, 1985, SOC AUT ENG SURF VEH, P1

[9]

FRIED N, 1989, JUN IEEE PAC RIM C C, P455

[10]

GOUBRAN RA, 1986 P IEEE VEH TECH, P72

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