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Re: Compression
| quote: | Originally posted by Sonic_c
My understanding of compression is
A sound that is not loud enough in the mix but is still going over 0.0 can be boosted by having a compressor reduce frequencies over a set threshold. |
I would think of compression as a way of controlling the dynamics of your track in order to achieve a tighter, more professional mix rather than just allowing you to keep levels under 0.0.
I would also avoid thinking of compression as a way of boosting a sound, although it can be used for that. Instead i would think of it as a way of reducing the differences between the loudest and quietest parts of an audio track (the dynamics). By reducing the levels of the peaks in the audio signal, the overall volume of that audio track can be boosted, as the peaks wont take up so much of the available headroom of the mix. By trimming the peaks subtly across whichever tracks in your mix need a little taming, you can significantly improve the tightness of your mix, and the overall volume of the mix will be louder.
Learn to be subtle with your compression though or you will lose all the dynamics from your mix. You can also use compression across the entire mix, but this is a whole other area which i wouldnt worry about until you have mastered using compression within your mix itself.
As for sidechain compression, the method will vary depending on your software platform, but basically you would need to have some sort of trigger (either a kick drum audio track or a midi track programmed on every beat) which is then linked to the sidechain input of your compressor. So if you want to add sidechain compression to a bass part, simply place a compressor on the bass track and link the sidechain input to your trigger part, whatever channel that may be on. Make sure you experiment with the attack/release and the threshold/ratio settings to get the pumping effect your looking for, and remember subtlety is important here too, unless you want a deliberately overcompressed feel!
Hope that was of some use!
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