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a. c. If the input to a layer I MPEG audio encoder is the bit stream for one channel of a standard music CD and

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a. c. If the input to a layer I MPEG audio encoder is the bit stream for one channel of a standard music CD and the encoder output rate is 192 Kbit/s, what is the compression ratio? Assume music CD signals consist of 16-bit samples with a sampling frequency of 44.1 kHz. 0.272 b. 2.72 3.68 d. 5.13 e. 6.77 In MPEG, part of the audio coding relies on a perception phenomenon known as Noise masking b. Frequency masking Temporal masking d. Signal masking e. Signal to noise ratio. a. c

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