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Audio Editing Summary

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Basic audio editing

  • Reduce length – cut excess, change tempo
  • Cut – delete “um” and “er" … everything that doesn't contribute to your message
  • Fade in and fade out – start and finish smoothly
  • Amplify and normalize – adjust volume, make quiet sounds louder
  • Work with multiple tracks – arrange, mix, etc.
 
More advanced techniques
  • Improve quality - remove noise, boost bass
  • Apply special effects – echo, change pitch, reverse
  • Add tracks with new sounds
  • Use envelope to adjust track volume levels


Audacity software

  • Imports and exports WAV, MP3, AIFF, AU, and Ogg Vorbis
  • MP3 export requires LAME (free)
  • Saving a project creates a file AND a folder (e.g., project1.AUP and project1_data). When working over multiple sessions, keep BOTH the file and the data folder!

 

Before Recording

  1. Make a test recording and listen to ensure everything works and volume level is good.
  2. Make sure batteries are new or freshly charged – or use an AC adapter.
  3. Minimize ambient sound – computer fan, phone, buzzing fluorescent light, creaking chair, ticking clock, air conditioner, lawn mower, refrigerator, etc.
  4. Be aware of your location – carpeted rooms are good. Large empty rooms and kitchens have a lot of reflective surfaces.

 

While Recording

  • Use headphones to hear what is being captured.
  • Hold the microphone about seven inches away from what you want to record.
  • Avoid recording the sound of moving a mic in your hand; use a light touch and hold still.
  • Record more than you think you need, including dead time at the beginning and end.
  • Don't hesitate to record something twice
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