Studying a modulation speech signal model for vocoder systems

被引：0
|
作者：
Ponomarev, E.P.
Dudin, V.I.
机构：
来源：
Radiotekhnika | 1991年 / 03期
关键词：
Amplitude Modulation - Mathematical Models - Optimization - Noise; Spurious Signal - Signal to Noise Ratio - Phase Modulation - Estimation - Vocoders;
D O I：
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学科分类号：
摘要：
A speech wave represented as a complex oscillation, being a result of modulation of voice source signal in harmonic amplitudes and phases, is considered. The recurrent form of a modulating message representation is determined. The results of analysis of approximation accuracy using a real speech signal and the results of pair comparisons with a bandpass model, widely used in vocoder systems, are given. The modulation signal model provides a higher quality of synthesized speech as compared to the bandpass model and it can be used as a basis for designing multispeed synthetic telephone systems.
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页码：32 / 34
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