In this fourth part of the tutorial, we will show you that audio compression is very important. compress, as the word itself says. Compress: reduce, cut, round, etc. But not all audio is compressed in the same way, as there is some audio that needs aggressive compression and others that are more subtle. for example: a voice is compressed very differently than a drum. Drums have a lot of percussive sounds with a lot of dynamics, spikes, etc. The voice also has a lot of dynamics, but the compression has to be more subtle and use multiple compressors. Since compressors compress and can crush the voice and take the life out of it. In this case you have to know how to use one of the most important parameters of a compressor, the attack and release.