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You are here: Acoustica > Products > Mixcraft > Tutorial > Low Pass & Resonant Filter
Low Pass and Resonant Filter
Mixcraft allows you to shape frequencies over time using real-time low pass and resonant filter technology!  First, import a sound or loop. (Free loops)
 
Listen to an example that shows the amazing effect that a low pass filter can have over time.  This example plays a standard loop, followed by a low pass filter example, followed by an example of a low pass and its corresponding resonant filter.
 
Go to the Mixcraft toolbar and change the "Show Env" control to Low Pass Cutoff

When selecting the Low Pass Cutoff, Mixcraft displays the Low Pass Cutoff envelopes for all sounds.

The Low Pass envelope for the sound shown to the left starts at a lower frequency and slowly increases to the full spectrum of the original sound, ie: It's similar to slowly turning up the treble on a stereo.
 

The Low Pass Resonance Filter controls how much extra emphasis is given to the area around the cut off point of the Low Pass Filter.  (It works hand in hand with the Low Pass Filter Cutoff.  In fact, you will not hear any changes if you haven't modified your Low Pass Filter Cutoff)

Go to the Mixcraft toolbar and change the "Show Env" control to Low Pass Resonance

When selecting the Low Pass Resonance, Mixcraft displays the Low Pass Resonance envelopes for all sounds.

The Low Pass resonance filter for the sound to the left starts at a small resonance and grows to maximum resonance.  At maximum resonance, it is adding alot of emphasis at the cutoff point of the filter.  When this changes over time, it has a very interesting effect!
 
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