Introduction to Sound 1

Review the powerpoint video above, and/or download the pdf and then research the questions below.

  • If each bit can store a theoretical 6 dB variation in amplitude, what is the total theoretical amplitude range in dB of a 16 bit digital audio signal ?
  • What is the approximate bandwidth of human hearing, and why is the sampling frequency of a CD 44,100 hz? Name a theorist we associate with this relationship.
  • What happens to the amplitude of a digital audio signal if we multiply that signal by less than 1?
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