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CN1879150B 用于音频信号处理的系统和方法 有权 转让

用于音频信号处理的系统和方法
摘要：
在一种声音重放或记录系统中，音频信号乘以增益系数(z)，所述增益系数(z)依赖于输入电平(y)。选择增益系数对输入电平的依赖性，以使无声音素比有声音素被多增强至少6dB，优选至少12dB，其中平均增益优选小于6dB。这提高了可懂度。
摘要（英）：

In a sound reproduction or recording system an audio signal is multiplied by a gain factor (z) which is dependent on the input level (y). The dependence of the gain factor on input level is chosen such that unvoiced phonemes are at least 6 dB, preferably at least 12 dB more enhenced than voiced phonemes, where preferably the average gain is less than 6 dB. This improves the intelligibility.

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