AGC - Compressor / Normalizer


What’s the different between the compressor and normalizer?

Nobody can give an answer?
Even not the people from Ultramixer who invented UM?

[b:09f72]Normalization[/b:09f72] finds the highest peak in your track and raises that to whatever setting you are normalizing to (usually 0 db). It also raises the rest of the track by the same amount. So, for example, if the highest peak in your track is -2db, normalizing to 0db will raise everything in the track by 2db. If you normalize to 0db (or something less, like -0.3db) you should not be getting any “red lights”, since by default all material will be below that point.

[b:09f72]Compression[/b:09f72], on the other hand, squashes (compresses) your peaks, and reduces the dynamic range of the material (the difference between the lows and the highs). How much of a reduction will depend on the threshold setting (where the comrpession kicks in) and the amount of compression you use. Doing this generally allows you to raise the overall volume of the track more than you can do by just normalizing (since your peaks are now lower, you have more room to go up). Using the example above, if your highest peak is -2db, you might be able to knock that down to say -6db by compressing the track, then you can apply 6db gain to bring the peak back up to 0db. So your track volume has been increased by 6db, as opposed to the 2db that normalizing would have given you.

Keep in mind that both algorithms work in real time in UltraMixer. That means they only take place in small windows of a buffer.

Thank you for answering!