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Speech Analysis Based on Sinusoidal Model with Time-Varying Parameters

Extracting speech-specific characteristics from a signal such as spectral envelope and pitch is essential for parametrical speech processing. These characteristics are used in many speech applications including coding, parametrical text-to-speech synthesis, voice morphing, and others. This paper presents some original estimation techniques that extract these characteristics using a sinusoidal model of speech with instantaneous parameters. The analysis scheme consists of two steps: first the parameters of sinusoidal model are extracted from the signal, and then these parameters are transformed to required characteristics. Some evaluations of the presented techniques are carried out on synthetic and natural speech signals to show potential of the presented approach.

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AES - Audio Engineering Society