Pulse-Code Modulation (PCM) Quiz
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Questions and Answers

What is the standard form of digital audio in computers, compact discs, and digital telephony?

  • A-law algorithm
  • Pulse-code modulation (PCM) (correct)
  • μ-law algorithm
  • Linear pulse-code modulation (LPCM)
  • In which type of PCM are the quantization levels linearly uniform?

  • A-law algorithm
  • Non-linear pulse-code modulation (NLPCM)
  • Linear pulse-code modulation (LPCM) (correct)
  • μ-law algorithm
  • What determines the number of possible digital values in a PCM stream?

  • Amplitude of the analog signal
  • Sampling rate
  • Quantization levels
  • Bit depth (correct)
  • Which property of a PCM stream is defined as the number of times per second that samples are taken?

    <p>Sampling rate</p> Signup and view all the answers

    In contrast to LPCM, which PCM encodings have quantization levels that vary as a function of amplitude?

    <p>A-law algorithm and μ-law algorithm</p> Signup and view all the answers

    Study Notes

    Digital Audio Standards

    • The standard form of digital audio in computers, compact discs, and digital telephony is Pulse Code Modulation (PCM).

    PCM Quantization

    • In Linear PCM (LPCM), the quantization levels are linearly uniform.

    PCM Stream Properties

    • The number of possible digital values in a PCM stream is determined by the number of bits used for quantization.
    • The sampling rate of a PCM stream is defined as the number of times per second that samples are taken.

    Non-Linear PCM Encodings

    • In contrast to LPCM, non-linear PCM encodings, such as A-law and μ-law, have quantization levels that vary as a function of amplitude.

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    Description

    Test your knowledge of Pulse-Code Modulation (PCM) with this quiz. Explore the key concepts of digital audio representation, sampling, quantization, and applications in various digital audio systems.

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