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Difference between revisions of "Understanding Digital Audio"

(Created page with "<u>Digital Audio</u> is the representation of sound waves digitally. == Bit-Depth == == Sample Rate == == File Formats == === Wave (.wav) === === MPEG-3 Audio (.mp3) ===...")
 
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<u>Digital Audio</u> is the representation of sound waves digitally.
 
<u>Digital Audio</u> is the representation of sound waves digitally.
  
== Bit-Depth ==
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== Basic Principles ==
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The most basic way to think of digital audio is like animation or video.  By playing a number of individual "frames" quickly enough, it gives the appearance of motion.  In the case of audio, the frames are called <u>samples</u>.  Unlike video, however, digital audio is not an illusion - the digital representation of the sound is capable of storing all the information contained in and can be converted back into identical sound waves.
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A device called an <u>analog-to-digital converter</u> (ADC) turns analog waves, either sound or electrical, into digital signals.
  
 
== Sample Rate ==
 
== Sample Rate ==

Revision as of 00:17, 9 March 2015

Digital Audio is the representation of sound waves digitally.

Basic Principles

The most basic way to think of digital audio is like animation or video. By playing a number of individual "frames" quickly enough, it gives the appearance of motion. In the case of audio, the frames are called samples. Unlike video, however, digital audio is not an illusion - the digital representation of the sound is capable of storing all the information contained in and can be converted back into identical sound waves.

A device called an analog-to-digital converter (ADC) turns analog waves, either sound or electrical, into digital signals.

Sample Rate

File Formats

Wave (.wav)

MPEG-3 Audio (.mp3)

Vorbis (.ogg)

Flac

Windows Media Audio (.wma)

MPEG-4 Audio (.m4a)