User Guide

RECORDING
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3. Enter a phone number in the Dial string field. The Amplitude control
determines how loud the tones will be. Press OK to generate the tones.
4. Play back the sound file − you will hear the tones that would dial the
number you specified.
FILTERING
What can you do when you have a sound that is not quite perfect, but not bad
enough to throw away? Sometimes, judicious use of filtering can keep a
favorite sound bite from losing favor. Filtering is not a cure-all for bad sound,
but slight alterations of a sound can bring it back to life.
Sounds are composed of varying amounts of one or more frequencies. For
example, a sound with a rich timbre will contain many different frequencies.
A sine wave sound has only one frequency in it, like 60 or 440 Hz.
Filters allow the tailoring of the frequency spectrum of a sound. A spectrum is
nothing more than a representation of how much of each frequency
component (from 20 Hz up to one-half the sample rate) is present in a signal.
Less of any given component means that the given frequency component is not
as prevalent aurally as another component. Filters pass or reduce (attenuate)
frequency components.