Abstract
Room transmission properties for the frequency modulated (FM) band of noise have been investigated and compared with the calculated amplitude modulation (AM) transfer function. Room modulation attenuation for both kinds of modulation is taken into account. The comparison of the calculated average values of the modulation transfer shows that the mean modulation attenuation is comparable for the AM and FM modulation and in a similar way depends on the reverberation time and the modulation frequency. Selected experimental results are also presented to explain room transmission properties for FM signals.
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