User`s guide
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•Implement additive synthesis by mixing sine waves in a harmonic
series (e.g., 100 Hz, 200 Hz, 300 Hz... 800 Hz). Link some of the
output amplitudes to sliders and try varying the proportions of
the different harmonics. Look at the resulting waveforms after
you click “Process.” See if you can simulate a triangle wave or
square wave using additive synthesis.
•Make a Doppler Effect simulation (with changes in volume and
pitch as an imaginary object passes by).
•Pan a signal left and right using the precedence effect, in which the
perceived location of a sound source is dominated by which
speaker’s sound reaches the ear first.
•Make a Rotary Speaker simulation (using amplitude and delay
modulation, with the rate of the modulation itself being slowly
modulated).
•Create pseudo-vocal sounds with random pitches of a
harmonically rich tone and two to five modulated bandpass filter
formants.
•Pseudo-stereo. Use your host program to save a mono sound as
stereo (same on both channels). Then use comb filters or
alternate filter banks to separate the sound into two channels
which, when added together, yield the original mono sound.
•Simulate the frequency response of a car radio.
•Simulate short-wave radio static and chirps.
•Simulate a phonograph record’s pops, clicks and background
static.
•Simulate the frequency response of a telephone
(100 Hz — 4 kHz). Then make separate Presets to imitate a phone
ringing, a dial tone, various touch-tones, and the “You have
reached a number that has been changed or is no longer in
service” tones. (U.S.)
•Simulate the physics or imitate the sound of an acoustic process,
such as a plucked string. The tutorial chapter gives the example
of filtered white noise = blowing-across-a-bottle. What other
physical processes can you simulate?
•Simulate mathematical chaos/audio fractals.