User`s guide

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5. Use Module 2’s Source pop-up menu to select “Noise,” and click
the module’s Left and Right Output checkboxes. Turn down your
speakers, then play some audio. You should hear white noise.
6. We want to turn the white noise into a pitched sound by bandpass
filtering it. Select “Bandpass” for the process, set the cutoff to
500 Hz, and set the Q to 170. The module should appear as
shown here, and you should hear a pitched sound like that
produced by blowing into a soft drink bottle.
The Q affects the sharpness or resonance of the filter; a higher Q
produces a narrower filter and a purer tone, while a lower Q
produces a wider filter. You can experiment with the different
sounds created by changing the cutoff and Q values.