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Pro. 4. In an audio CD, the audio voltage signal is typically sampled about 44,000 times
per second, and the value of each sample is recorded on the CD surface as a binary
number. In other words, each recorded binary number represents a single voltage point on
the audio signal waveform.
If the binary numbers are six bits in length, how many different voltage values can be
represented by a single binary number? Repeat for eight bits and ten bits.
Iften-bit numbers are used, how many bits will be recorded on the CD in 1 second?
If a CD can typically store 5 billion bits, how many seconds of audio can be recorded
when ten-bit numbers are used?
Sagot :
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