back noise">
</td></tr>
<tr><td class="bluishb">
Tomisawa's picture of the noise
</td></tr></table>

<p>Why does an index over 1.0 create bursts of noise?
Each burst happens as the modulator phase goes through an odd multiple of pi (where sine is going negative as the phase increases). Since the
index (B) is high enough, the change between successive samples in (B * sin(y)) is eventually greater in magnitude than the phase increment.
When that happens on the downslope of the sine curve, B * sin(y) + phase-i