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No... well not really. Lossy compression is usually used on analogue signals that are generally speaking quite smooth. Sounds is made up of waves which move up and down slowly, so raw sound data captured by a computer records the absolute values thousands of times a second. Really all that is needed is an overview of what the sound wave is doing (heading up slowly, heading up quickly). Better compression is achieved using frequency analysis. Something like MP3 allows music to be compressed at a ratio of about 10:1 without any real loss in quality. Even with much higher compression where there is a noticeable loss in quality the music can still be appreciated.

Text however isn't analogue and isn't smoothly changing so lossy compression as we traditionally use it wouldn't work. However, non-lossy compression algorithms (like ZIP) could be tuned to intentionally throw away some characters, or change some characters so that they compress better. What comes out wouldn't be exactly the same as what went in, but then the message and the intention of the text would probably still survive.

But the compression gains wouldn't be dramatic like they are with audio or video... Text already compresses very very well without the need to resort to lossy compression techniques...

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15y ago

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