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Oak ComputingTest · Computing

Calculation of sound file sizes

The starter and exit quiz of the lesson “Calculation of sound file sizes”, from the unit “Representation of text, images and sound” (Year 10 Computing) by Oak National Academy.

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Oak National Academy

12 questions

  1. What is a sound sample?
  2. What does digitisation mean?
  3. What does bit depth in sound sampling refer to?
  4. Put these steps in the correct order to digitise sound:
  5. What is the term used to describe the number of bits used to represent a sound sample?
  6. Match the terms with their definitions:
  7. What does adjusting the sample bit depth affect when digitising sound?
  8. What three factors determine the size of a sound file?
  9. What happens if the sample rate is too low?
  10. What is the effect of increasing both sample rate and sample bit depth?
  11. Calculate the file size in kB of a 2-minute sound recording that has a sample rate of 2000 Hz and a sample bit depth of 6 bits.
  12. Calculate the file size in kB of a 3-minute sound recording that has a sample rate of 1000 Hz and a sample bit depth of 2 bits.

License: OGL

Calculation of sound file sizes · Examplary