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PHONEME DIVIDING DEVICE, VOICE PROCESSING SYSTEM, PHONEME DIVIDING METHOD, AND PHONEME DIVIDING PROGRAM, AND NOISE MEASURING DEVICE
PHONEME DIVIDING DEVICE, VOICE PROCESSING SYSTEM, PHONEME DIVIDING METHOD, AND PHONEME DIVIDING PROGRAM, AND NOISE MEASURING DEVICE
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机译:电话分割装置,语音处理系统,电话分割方法,电话分割程序以及噪声测量装置
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摘要
PROBLEM TO BE SOLVED: To perform an appropriate phoneme division by automatically detecting a background noise level.SOLUTION: A phoneme dividing device 10 includes: a first branch part 13 for branching a sound signal; a square circuit 16 for squaring one sound signal; a second branch part 17 for branching the square signal; a time constant circuit for sound 18 for smoothing one square signal by a time constant for sound of several 10 to several 100 ms; a square root circuit for sound 22 for computing the square root of a smoothing signal; a time constant circuit for background noise 20 for smoothing a rising of the square signal by a rising time constant at least 10 times larger than the time constant for sound and smoothing a time constant for fall of the square signal by a time constant for fall same as the time constant for sound; a square root circuit for background noise 24 for computing the square root of the smoothing signal; a comparison part 30 for comparing between the signal from the square root circuit for sound 22 and the signal from the square root circuit for background noise 24; and a gate circuit 32 for controlling transmission/non-transmission of the other sound signal according to a comparison result of the comparison part 30.SELECTED DRAWING: Figure 3
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