Title :
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
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;
Conference_Titel :
Speech Coding For Telecommunications Proceeding, 1997, 1997 IEEE Workshop on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-4073-6
DOI :
10.1109/SCFT.1997.623878
