\dˌɛmədjʊlˈe͡ɪʃən], \dˌɛmədjʊlˈeɪʃən], \d_ˌɛ_m_ə_d_j_ʊ_l_ˈeɪ_ʃ_ə_n]\
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By Princeton University
By DataStellar Co., Ltd
To recover the signal from the carrier.For example, in a radio broadcast using amplitude modulationthe audio signal is transmitted as the mean amplitude of aradio-frequency carrier so demodulation requires a circuitwhich measures the amplitude and filters out the carrier.There are many other kinds of modulation and correspondingdemodulation.
By Denis Howe