Triangle: Triangle waves, like sine waves, are used for a variety of analyzing purposes. They are called
triangle waves due to their appearance on an oscilloscope.
Square: Square waves, like triangle waves, get their name from the appearance they produce on an
oscilloscope. These blocky waves alternate between two levels at regular intervals – making them sound
and appear quite different to the gradual high and low curves of sine and triangle waves.
Polarity: The polarity signal is usually used for checking the polarity of speakers. Check the Polarity
section of the menu for more information.
Pink Noise: The pink noise signal is typically used for adjustment of environment acoustics. The most
common use would be in the setting of equalizers. As pink noise encompasses most frequencies within
it, playing a pink noise signal in any given setting can give engineers a sense of the acoustical properties
of the room and allows them to compensate through the equalizer. Users can filter specific frequencies
for the pink noise generator simply by using the "Filter Mode" and "Filter Frequency" options.
White Noise: As with pink noise, white noise can be used to set up equalizers. It also features the
"Filter Mode" and "Filter Frequency" options that the pink noise offers (figure 68).
figure 68
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