identify the wrong statementa. 3 harmonic equals 2nd overtoneb. the frequency of free vibration is also called resonant or natural frequencyc. the doppler effect (or the doppler shift) is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave sourced. the precise relationship between pitch, the perceptual and physical quantity is very straightforward (proportional) For example the tripling of a pitch from 1000mels to 3000 mels corresponds to the frequency of 3000 Hz.

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