如何确定一个WAV文件将如何响亮的声音？ [英] How can I determine how loud a WAV file will sound?

问题描述

我有一大堆的WAV格式不同的录音（所有不同的乐器和球场），我想正常化他们，让他们所有的声音大约播放时相同的体积。

I have a bunch of different audio recordings in WAV format (all different instruments and pitches), and I want to "normalize" them so that they all sound approximately the same volume when played.

我试过测量样本平均幅度（由样本数将所有的绝对值之和），但正火这个测量不工作得很好。我觉得这个方法是行不通的，因为它没有考虑到声音的频率，我知道，较高频率的录音听起来比相同幅度的低频率的声音更响亮。

I've tried measuring the average sample magnitude (the sum of all absolute values divided by the number of samples), but normalizing by this measurement doesn't work very well. I think this method isn't working because it doesn't take into account the frequency of the sounds, and I know that higher-frequency recordings sound louder than lower-frequency sounds of the same amplitude.

有谁知道测量声音的响度的好方法？

Does anyone know a good method for measuring the loudness of a sound?

推荐答案

<一个href=\"http://en.wikipedia.org/wiki/Root%5Fmean%5Fsquare#Relationship%5Fto%5Fthe%5Farithmetic%5Fmean%5Fand%5Fthe%5Fstandard%5Fdeviation\" 经常被用来估计声音文件的音量相对=nofollow>均方根。这是因为，一个声音，这是非常响亮可能无法察觉到的方式，如果它是非常短的。还记得功率成倍增加振幅的平方。

Root Mean Square is often used to estimate the loudness of sound files. This is because a sound that is very loud might not be perceived that way if it is very short. Also remember that power increases exponentially with the square of amplitude.

在氢气音频音频怪才知道一吨这个东西......看看他们的免费的的回放增益软件。您可能不需要在所有做任何节目。

The audio geeks at Hydrogen Audio know a ton about this stuff...check out their free Replay Gain software. You may not need to do any programming at all.

编辑：包括电源反馈意见对振幅

Included comment feedback on power vs. amplitude.

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