Recording the Audio Preview

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Once the microphone picks-up sound, it is then encoded into either an analog or digital signal, then recorded to a device.  With advancements in technology, the quality of the recorded signal can be virtually indistinguishable from the original sound.  In this module, we explore how sound is recorded and encoded.


  • 35:09 video that walks you through how audio is encoded and recorded
  • Illustrated companion guide


  • The difference between an analog and digital signal
  • How to set proper audio levels
  • What is the noise floor and how it can adversely affect your audio
  • What is the sample rate and bit depth of a digital signal
  • What is auto gain
  • How compressors and limiters work
  • What happens when audio peaks
  • What is the dynamic range of the recorded sound and recording medium
  • How to determine the gain structure in your audio device chain
  • How bars and tone work
It was a very well thought out video and I love the attention to detail and the fact that the subject matter focused on the
aesthetic and storytelling aspects of editing.
   - Cedric Pounds, Chabot College