replace in opening quotations
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@@ -75,7 +75,7 @@ Strategies for band-limiting sawtooth waves</A>
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<CAPTION ALIGN="BOTTOM"><STRONG>Figure 10.14:</STRONG>
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Alternative techniques for making waveforms with corners: (a) a
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triangle wave as the minimum of two line segments; (b) clipping a triangle wave to
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make an ``envelope".</CAPTION>
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make an "envelope".</CAPTION>
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<TR><TD><IMG
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WIDTH="617" HEIGHT="359" BORDER="0"
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SRC="img1377.png"
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@@ -101,7 +101,7 @@ shape is used as in the previous example, and the falling shape differs only
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in that its phase is set so that it falls to zero at a controllable point (not
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necessarily at the end of the cycle as before). The <TT>clip~</TT> object prevents
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it from rising above 1 (so that, if the intersection of the two segments is
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higher than one, we get a horizontal ``sustain" segment), and also from falling
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higher than one, we get a horizontal "sustain" segment), and also from falling
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below zero, so that once the falling shape reaches zero, the output is zero for
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the rest of the cycle.
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