Title :
Frequency domain multi-pulse coding at 2400 b/s
Author :
van Schalkwyk, J.J.D. ; Van der Linde, J.G.
Author_Institution :
Dept. of Electron. & Comput. Eng., Pretoria Univ., South Africa
Abstract :
An alternative to linear predictive coding (LPC) that makes use of multipulse techniques in the frequency domain is described. The synthesized speech promises to have a much more natural sounding quality than that of ordinary LPC at 2400 b/s. By making use of pitch period repetition, it is possible to code each frame of a voiced excitation signal with only three pulses. Simulation results are presented, showing that the voiced portions of the speech had a more natural quality. It remains to extend the technique to include the unvoiced portions as well
Keywords :
encoding; frequency-domain analysis; spectral analysis; speech analysis and processing; speech synthesis; 2400 bit/s; frequency domain multipulse coding; natural sounding quality; pitch period repetition; spectral analysis; speech synthesis; synthesized speech; voiced excitation signal; voiced portions; Acoustical engineering; Bandwidth; Bit rate; Discrete Fourier transforms; Frequency domain analysis; IEEE members; Performance evaluation; Signal synthesis; Speech synthesis; Testing;
Conference_Titel :
Communications and Signal Processing, 1989. COMSIG 1989. Proceedings., Southern African Conference on
Conference_Location :
Stellenbosch
Print_ISBN :
0-87942-713-2
DOI :
10.1109/COMSIG.1989.129032
