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Question

An audio signal is sampled 8000 times per second . each sample is represented by 256 different levels. How many bits per second are needed to represent this signal?

Answer 1

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參考看看，有誤請指正！256 different levels需要8 bits表示，28=256。因為signal is sampled 8000 times per second而且每一個sample為8 bits，故需要8*8000=64000 bits per second 。

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