ocr: AMPLITUDE MODULATION In this type of modulation, SOUND SIGNAL the amplitude ofthe carrier signal is changed SO thatit - - - - - - - - - varies at the same rate as HIGH VOLTAGE LOW VOLTAGE the voltage ofthe sound COMPRESSION RAREFACTION signal. Where there is a INS SOUND WAVE) IN SOUND WAVE) high voltage in the sound CARRIER SIGNAL signal, there is a high amplitude . in the modulated - i - - - - - - MAA - i - signal. Where there is a low - - - 1 - - - voltage in the sound signal, there is a low amplitude in MODULATED SIGNAL the modulated signal. The carrier signal has a constant amplitude and f ...
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