Time domain voicing cutoff (TDVC): a high quality, low complexity 1.3-2.0 kb/sec vocoder

Author

Zinser, Richard L. ; Grabb, Mark L. ; Koch, Steven R. ; Brooksby, Glen W.

Author_Institution

GE Corp. Res. & Dev., Niskayuna, NY, USA

fYear

1997

fDate

7-10 Sep 1997

Firstpage

25

Lastpage

26

Abstract

This paper describes a family of low rate, low complexity speech coding algorithms known as time domain voicing cutoff (TDVC). TDVC is a predictive coding algorithm that employs a single transition frequency dividing voiced and unvoiced excitation. It provides the voicing flexibility of a frequency domain algorithm with lower complexity and rate overhead. TDVC has been previously subjected to a DAM test and received scores of 63.4 and 60.1 at 2.0 and 1.5 kb/sec, respectively

Keywords

computational complexity; prediction theory; speech coding; time-domain analysis; vocoders; 1.3 to 2.0 kbit/s; DAM test; TDVC; frequency domain algorithm; low rate low complexity speech coding algorithms; predictive coding; rate overhead; received scores; single transition frequency; time domain voicing cutoff; unvoiced excitation; vocoder; voiced excitation; voicing flexibility; Autocorrelation; Cutoff frequency; Delay estimation; Filter bank; Frequency domain analysis; Predictive coding; Research and development; Speech coding; Synthesizers; Vocoders;

fLanguage

English

Publisher

ieee

Conference_Titel

Speech Coding For Telecommunications Proceeding, 1997, 1997 IEEE Workshop on

Conference_Location

Pocono Manor, PA

Print_ISBN

0-7803-4073-6

Type

conf

DOI

10.1109/SCFT.1997.623878

Filename

623878