A demonic spirit

To change a recorded voice so that it sounds like a demonic spirit...

  • Using Audacity, open the Recorded voice you wish to change

    Example of an original Voice Recording
  • Move the mouse over the 'grey control section' at the start of the track, as shown here...
    Image of open Recorded Voice track
    ...and left-click...

    This is the quick way to select all of this track; the following image shows the result... Image showing the whole track selected
    Note:     the change in colour showing the track has been selected.
  • Either: Click on the Edit Menu and then select Duplicate
    Image of Edit menu with Duplicate being selected

    OR use the keyboard shortcut Ctrl + D.
    Which ever you choose a second duplicated track will appear, like this...
    Image of the now two tracks

  • Click in the Work space to clear the selections from both tracks
    Note the change of colour again...
    Image showing track no longer selected
  • Highlight the first track again then...
  • Click on the Edit Menu and then select Duplicate OR use the keyboard shortcut Ctrl + D
    This will produce the third track required...
    Remember to clear the selection by clicking in the 'workspace'
    Image of three deselected track all identical
The next step is to alter the pitch of the second track...
  • Highlight the second track (see above if you have forgotten how to select a track)
  • Click on the Effect Menu and then select Change Pitch...
    Image showing Effect menu and the selection of Change Pitch
  • Change the Semitone (half-steps) to -1
    Image of Change Pitch Dialog Box
  • Click OK
The next step is to alter the pitch and Base Boost of the third track...
  • Highlight the third track
  • Click on the Effect Menu and then select Change Pitch...
  • Change the Semitone (half-steps) to -5
    Image of Change Pitch Dialog Box
  • Click OK
  • Click on the Effect Menu and then Bass Boost...
    Image of Effect Menu

  • Image of BassBoost dialog box
    Click OK
The next step is to alter the gain slide of the third track...
  • Drag the Gain slide on the left of the third track to +3DB
    Image of Third Track
The final step is to alter the echo of the second track...
  • Highlight the second track
  • Click on the Effect Menu and then Echo...
    Image of Effect Menu
  • Change the Delay time (seconds) to 0.1 and...
    Change the Decay factor to 0.6
    Image of echo Dialog Box
  • Click OK
Export the end product as an mp3. Example of the 'changed voice' - Demonic enough for you?
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Produced and edited by John Dalziel (eLearning Adviser) JISC RSC-Northwest - Lancaster University