Modern compact disk (CD) players use 16-bit PCM, including one parity bit. Additionally 8 times oversampling of the analog signal is used. The 8 times over sampling increases the sampling frequency by 8 times, so that a cheap low-pass filter can be used. The analog signal bandwidth is 20 k Hz. What is the null bandwidth of this PCM signal? Find the peak S/N in decibels.

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