Sinusoidal Modeling and Modiication of Unvoiced Speech (paper Sa-386)
نویسندگان
چکیده
Although sinusoidal models have been shown to be useful for timescale and pitch modiication of voiced speech, objectionable artifacts often arise when such models are applied to unvoiced speech. This correspondence presents a sinusoidal model-based speech modiication algorithm that preserves the natural character of unvoiced speech sounds after pitch and timescale modiication, eliminating commonly-encountered artifacts. This advance is accomplished via a perceptually-motivated modulation of the sinusoidal component phases that mitigates artifacts in the reconstructed signal after timescale and pitch modiication.
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