The Digital Audio Quiz! MCQ Trivia

11 Questions | Total Attempts: 2506

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The Digital Audio Quiz! MCQ Trivia

Do you think you can pass this quiz about digital audio? Digital audio is a technology utilized to record, store, manipulate, create, and reproduce sound using audio signals that have been encrypted in digital form. It also refers to the sequence of discreet samples that are taken from the analog waveform. Take on this quiz and look at how much you know about digital audio.


Questions and Answers
  • 1. 
    Digital audio is 
    • A. 

      Continuous in time

    • B. 

      Discrete in time

    • C. 

      A waste of time

  • 2. 
    The first component in the D/A signal train is an
    • A. 

      Anti alliteration filter

    • B. 

      Anti apartheid filter

    • C. 

      Anti alienation filter

    • D. 

      Anti aliasing filter

  • 3. 
    The purpose of the Anti-aliasing filter is to
    • A. 

      Low pass filter the audio at a frequency related to the sampling rate

    • B. 

      High pass filter the audio at the sampling rate

  • 4. 
    The cut off point of the filter has to be less than:-
    • A. 

      One third of the sampling rate

    • B. 

      The sampling rate

    • C. 

      Half the sampling rate

    • D. 

      Two thirds of the sampling rate

  • 5. 
    This cut off frequency is named after a Swedish mathematician. It is called:-
    • A. 

      The Nyquist frequency

    • B. 

      The Blumlein frequency

    • C. 

      The Einstein frequency

    • D. 

      The Wittgenstein frequency

  • 6. 
    The sampling rate has a direct effect on:
    • A. 

      The dynamic range of the audio

    • B. 

      The bandwidth of the audio

  • 7. 
    The amplitude measurement of each sample is rounded to the nearest bit. What is this process called
    • A. 

      Quantisation

    • B. 

      Sample and hold

    • C. 

      Clocking

    • D. 

      Compression

  • 8. 
    What unwanted effect might quantization have if the bit depth is low?
    • A. 

      Digital distortion

    • B. 

      Quantisation noise

    • C. 

      Alias noise

  • 9. 
    Bit depth affects:
    • A. 

      The dynamic range of the audio

    • B. 

      The bandwidth of the audio

  • 10. 
    Which of the following might be considered professional sampling rates and bit depths?
    • A. 

      16 bits 44.1 kHz

    • B. 

      24 bits 96 kHz

    • C. 

      16 bits 48 kHz

    • D. 

      12 bits 32 kHz

    • E. 

      24 bits 192 kHz

  • 11. 
    Which of the following pathways represents the Digital audio process?
    • A. 

      Anti aliasing filter, Sample and hold, (processing and editing in the digital domain) data recovery filter, DAC

    • B. 

      Data recovery filter, Sample and hold, (processing and editing in the digital domain) anti aliasing filter, DAC

    • C. 

      Sample and hold, Anti aliasing filter, (processing and editing in the digital domain) data recovery filter, DAC

    • D. 

      Anti aliasing filter, Sample and hold, (processing and editing in the digital domain) DAC, data recovery filter

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