The authors propose a 4.8-kbps voice-coding algorithm using pitch-synchronous discrete Fourier transform (DFT). This algorithm combines time-scale compression with pitch-synchronous DFT spectrum coding. It also discards the time-compressed signal-phase information and the nonharmonic spectral components to reduce the amount of information processes. Simulation results show that the reproduced sound quality is good. Processing delay is about 80 ms, without including operation time.
A 4.8 kbps voice coding using pitch synchronous DFT
Ein Sprachcodierungsalgorithmus auf der Grundlage schneller Fouriertransformationen
1988
5 Seiten, 1 Quelle
Conference paper
English
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