multiplex sound system 多声道系统
picture sound time division multiplex 图像伴音时分复用
The formulas for the transformation of sound levels between linear spectrum and multiplex frequency band, or among various multiplex frequency bands, are derived and the corrected value is calculated.
推导线性谱声压级、倍频带声压级以及各倍频带声压级之间的转换公式，计算出修正值。
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