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• Pulse Code Modulation (PCM) is a basic encoding technique. Every audio sample represents one byte and finally concatenates all the samples together to form digital signal.

• The analog signal can be sampled 16,000 times per second. That is, there are 16,000 samples in one second.

• Suppose every sample is quantized in to one of 1024 levels. The quantization must be in power of 2. So, 1024 =, so it requires 10 bits for sampling.

• The resulting bit rate of the PCM digital audio signal = 16,000 * 10

= 160,000 bps / 1000

= 160 kbps.

Thus, the bit rate of the PCM digital audio signal is 160 kbps.


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