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【国外标准】 IEEE Standard for Audio Program Level Measurement

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  • IEEE 152-1991
  • 定价: 112元 / 折扣价: 96
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The peak-program meter (PPM) is designed for directly measuring the quasi-peak level of complex electrical audio signals occurring in the transmission or recording of an audio program in order to achieve optimum technical utilization of the transmission channel or recording medium. For this purpose, full-wave rectification is used, and the integration time is chosen to indicate the level of those peaks that would cause audible nonlinear distortion if they were clipped or otherwise severely… read more distorted by the transmission channel or recording medium. The PPM can therefore be used to indicate the peak level that the channel or medium must accommodate if audible distortion is to be avoided. This standard refers to the overall characteristic of the PPM and not the performance of its component parts. read less

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    IEEE 152-1991

  • 标准名称:

    IEEE Standard for Audio Program Level Measurement

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