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Speech interval detecting method and system, and speech speed converting method and system using the speech interval detecting method and system
Speech interval detecting method and system, and speech speed converting method and system using the speech interval detecting method and system
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机译:语音间隔检测方法和系统,以及使用语音间隔检测方法和系统的语音速度转换方法和系统
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摘要
A speech interval detecting method and a speech interval detecting device are provided which allow to decide whether an acoustic input signal is speech or not. A frame power of an input signal data is calculated in units of a predetermined frame width at a predetermined time interval, and then a maximum value and a minimum value of the frame power within a past predetermined time period are held in respective latches (33,34). A threshold value for power is decided, changed according to the maximum value being held and depending on the difference between the maximum value and the minimum value (35). The threshold value is compared with the power of a current frame to decide whether or not the current frame belongs to a speech interval or to a non-speech interval (36).
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