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FLUTTER

In recording or reproducing sound, a rapid fluctuation in speed, and therefore PITCH, that creates a warble-like effect. It is usually caused by a fault in the drive mechanism of analog recording or reproducing equipment. The rate of flutter is faster than that of WOW, and is usually 8 kHz or more.

Compare: FREQUENCY MODULATION, GLISSANDO, TAPE RECORDER, TREMOLO, VIBRATO.


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