注意看最后一段 ：there are thousands of ways of mastering。就是s说有很多做mastering的方法，作为一个例子这只是其中的一种，而不是唯一的，所以没有某一步也不奇怪。这里有篇文章也许能回答你的疑问 http://www.soundonsound.com/sos/jun01/articles/pcmusician0601.asp 看这段“A discussion of compression options during mastering would need a dedicated article in itself, and on many tracks I'm unconvinced that that mastering compression is needed unless there's something basically wrong with the track dynamics or de-essing is required. " (mastering时是否需要压缩这个问题应该有专门的文章来讨论，对于大多数做matering的音轨来说，我不认为这是必需的，除非是音轨本身在动态方面有基础性错误，或者出于齿音消除的需要)
