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Alesis Micron Owners Manual.pdf - Fdiskc

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56<br />

6 Programs<br />

The Pre Filter Mix<br />

The outputs of the oscillators, as well as a few other signal sources,<br />

are fed into a virtual mixing board called the Pre Filter Mix. The<br />

job of this mixer is to funnel all of these sources into the inputs of<br />

the next sound processing stage—the filters. For each source, you<br />

can specify its level, which is how loud it should be, and its balance,<br />

which determines how much of it goes to Filter 1 and how much<br />

to Filter 2.<br />

The Filters<br />

The sound produced by the oscillators is very raw, and usually not<br />

suitable to be used directly in an instrument. In order to bring out<br />

the sonic textures you have in mind, you will typically want to<br />

dampen certain harmonics and boost others. This is where the<br />

filters come in. Filters alter the frequency content of the signal,<br />

and can have a drastic effect on the sound. A filter typically allows<br />

you to adjust its cutoff frequency, which represents the range of<br />

harmonics that the filter operates on, as well as its resonance, which<br />

determines how much boost is given to harmonics around the<br />

cutoff frequency. Each of the <strong>Micron</strong>’s voices contains two filters,<br />

and each filter can be one of eighteen different types, each with its<br />

own character and sonic flavor.<br />

The Post Filter Mix<br />

The outputs of the filters need their own virtual mixing board as<br />

well, and that’s what the Post Filter Mix is for. For each filter<br />

output, as well as a pre filter signal of your choice, you can specify<br />

a level, which is how loud it should be, and a pan, which determines<br />

how much goes to your left speaker and how much to the right.

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