Difference between revisions of "Lossy"
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'''Lossy''' compression is a form of compression that significantly reduce multimedia file size by throwing away information imperceptible to humans. | '''Lossy''' compression is a form of compression that significantly reduce multimedia file size by throwing away information imperceptible to humans. | ||
| − | Human audio perception is not perfect. Lossy compression takes advantage of | + | Human audio perception is not perfect. Lossy compression takes advantage of thse characteristics. By selective discarding, a great deal of unnecessary information is thrown away. The amount of information discarded is usually adjustable, giving a compromise between 'small size bad quality' and 'high quality large size'. |
| − | The downside to this is that waveform reconstructed from compressed information will never exactly match the original waveform. | + | The downside to this is that the waveform reconstructed from compressed information will never exactly match the original waveform. |
[[Category:Audio Formats]] | [[Category:Audio Formats]] | ||
Latest revision as of 18:52, 4 April 2006
Lossy compression is a form of compression that significantly reduce multimedia file size by throwing away information imperceptible to humans.
Human audio perception is not perfect. Lossy compression takes advantage of thse characteristics. By selective discarding, a great deal of unnecessary information is thrown away. The amount of information discarded is usually adjustable, giving a compromise between 'small size bad quality' and 'high quality large size'.
The downside to this is that the waveform reconstructed from compressed information will never exactly match the original waveform.
