Intro to Digital Audio Editing

Audacity Demo

  1. Recording
    • selecting the audio hardware and input device
    • audio format: sample rate, mono/stereo
    • start, stop, play, record controls
    • level meter
    • what are good levels - what happens when levels are too high or low
    • recording more then one clip
  2. Editing
    • moving tracks around
    • selecting audio
    • cutting and pasting
    • silencing
    • using the envelope tool
    • zooming in and out
    • creating a smooth crossfade
  3. Projects
    • labeling tracks
    • saving your project
    • what is a project file
    • exporting a final mix
    • formats for exporting


    Editing Exercise


    Record two songs from your MP3 player (you will need an audio cable from your teacher) into Audacity. Be sure to watch your levels.

    Open your recording and edit out anything you don’t want in it - is there a big gap at the beginning or end? If so trim it out. Are there any clicks or pops when you started the song playing?

    Finally mix together your two files by creating a smooth crossfade. Make sure they overlap to some degree in a way that sounds good. Make use of the envelope tool for control the fade-in / fade-out. Try different timings and amounts of overlap.

    Let your teacher know you are done and demo your edit in Audacity. We will view a few projects on the projector.

    Videos for Review

    Some Audacity videos on YouTube for review. These videos could be a lot better, for instance the mixing video doesn’t make use of the envelope tool and instead uses the amplify effect which isn’t as flexible. Still there are useful to refresh your memory about how Audacity works and is used for digital editing.

    Audacity - Tutorial 1 - http://www.youtube.com/watch?v=lrPGMjZORCM
    Basic Editing in Audacity - http://www.youtube.com/watch?v=LfSJzUX5hWs&feature=related
    Mixing in Audacity - http://www.youtube.com/watch?v=M1IqWoWu8gU&feature=related
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