Typical T1 voice lines have 24 channels with each capable of carrying 1 telephone conversation with "8-bit" quantization and 8,000 samples/second.If we apply this to storiing a voice clip on disk, how much storage (in bits) does a 10 second clip take.

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Typical T1 voice lines have 24 channels with each capable of carrying 1 telephone conversation with "8-bit" quantization and 8,000 samples/second.Suppose the quantization is 12-bits (same sampling rate).How many bits to store a 10 second video clip.

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QAM (Quadrature Amplitude Modulation) uses phase and amplitude to indicate different signals so that multiple bits can be sent in a clock cycle.More generally, there is a relationship between the number of bits per second (bps) and the number of different signal combinations (states) and the baud rate (signal changes per second).

If I want a data rate of 30,000 bps and the baud rate is 10,000 how many states do I need.

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The chapter speaks aboutQAM (Quadrature Amplitude Modulation),but this is just an implementation of what we've seen before.

If there are 16states (or signal combinations)and a baud rate (number of signals/second) of 8000/second, how many bps could I send?Hint:You first have to figure out how many bits I can send with 16 states, then multiplyby the number of signals/second.