Patent ID: 6085157
Filing Date: 2000-07-04
Classification: G10L

Abstract:
A reproducing velocity converting apparatus comprising:data recording means (1) for recording and holding a sound signal in the form of a digital signal;voiced sound/unvoiced sound deciding means (2) for deciding whether said sound signal is a voiced sound or an unvoiced sound in an arbitrary section of said sound signal which is held in said data recording means;speech velocity converting means (4) for a sound signal being read from said data recording means, said speech converting means outputting a sound as it is in a section which is decided to be an unvoiced sound part by said voiced sound/unvoiced sound deciding means, said speech velocity converting means outputting, by changing only a time length of the sound in the section which is decided to be a voiced sound part by said voiced sound/unvoiced sound deciding means,wherein said speech velocity converting means has means for controlling a reading of the sound signal from said data recording means, said controlling means uses a decision result of said voiced sound/unvoiced sound deciding means so as to control a voiced sound part reading address in accordance with the time length of the unvoiced sound part so that an output signal may provide a value which approximates to a desired reproducing velocity; anddata output means (8) which can output a signal having a determined frame length of the output signal from said speech velocity converting means.