Here, the values in the sine function are rounded
off to the nearest multiple of 1/8. The resulting roundoff error causes
new frequencies to be introduced; these can be heard when the function
is played (by clicking the **Sound** checkbox). This is called
quantization distortion. Press **Sine**
to get a clean sine wave, and play it for comparison. Press
**Quantize** to quantize it, multiple times to use a coarser quantization.

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Generated Tue Sep 9 2008