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USING ADOBE AUDITION
Digital audio fundamentals
Last updated 2/16/2012
How Adobe Audition digitizes audio
When you record audio in Adobe Audition, the sound card starts the recording process and specifies what sample rate
and bit depth to use. Through Line In or Microphone In ports, the sound card receives analog audio and digitally
samples it at the specified rate. Adobe Audition stores each sample in sequence until you stop recording.
When you play a file in Adobe Audition, the process happens in reverse. Adobe Audition sends a series of digital
samples to the sound card. The card reconstructs the original waveform and sends it as an analog signal through Line
Out ports to your speakers.
To sum up, the process of digitizing audio starts with a pressure wave in the air. A microphone converts this pressure
wave into voltage changes. A sound card converts these voltage changes into digital samples. After analog sound
becomes digital audio, Adobe Audition can record, edit, process, and mix it—the possibilities are limited only by your
imagination.
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