Firstly, there's the obvious application of making your CDs sound as loud as possible. This trend is starting to get a bit silly, and is beginning to prevent people from producing albums of good dynamic range. Nevertheless, if you master a rock or pop album with no compression at all, then the chances are it will sound pitifully quiet compared to the rest of the CDs in peoples record collections. It will probably sound like it has been severely under-recorded. Compression lets you get a much higher average level onto the CD without affecting the music too much.
首先,它能明显的让你的cd的声音达到最大化!这个趋势发展的很快并且让人们得到更好的动态。然而,如果你混缩摇滚和流行而没有用压缩的话,哪么与人们收藏的其他cd比起来你的声音听起来会小的可怜。它讲听起来达不到cd的标准。压缩在不影响音质的情况下使你的CD得到更高的平均电平(音量)。这句不太靠谱吧? 用压缩会减小动态的.扩展器可以增加动态