replace in opening quotations
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@@ -435,9 +435,9 @@ classic variant uses a single delay line, with no enveloping at
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all. In this situation it is necessary to choose the point at
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which the delay time jumps, and the point it jumps to, so that the output
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stays continuous. For example, one could find a point where the output signal
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passes through zero (a ``zero crossing") and jump discontinuously to another one.
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passes through zero (a "zero crossing") and jump discontinuously to another one.
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Using only one delay line has the advantage that the signal output sounds
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more ``present". A disadvantage is that, since
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more "present". A disadvantage is that, since
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the delay time is a function of input signal value, the output is no longer
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a linear function of the input, so non-periodic inputs can give rise to
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artifacts such as difference tones.
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