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Which characteristics of the input signal are illustrated in this spectrogram? 2000 4800 6000 8000100001200014000i6000l8000 Mar of an 0.2 oi 7 me o; ii ?

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Which characteristics of the input signal are illustrated in this spectrogram? 2000 4800 6000 8000100001200014000i6000l8000 Mar of an\" 0.2 oi 7 me" o; ii ? liner Tiialhec] 0 it has more low frequency energy than high frequency energy and it is aperiodic 0 it has an amplitude that is constantly increasing 0 it has more high frequency energy than low frequency energy and it is periodic 0 it shows repetitive frequency uctuations

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