...difference between lossless and lossy

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Answer by Kml
Submitted on 4/12/2007
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try this one... Lossy Compression In a lossy compression scheme, as the name implies, some of the original information is discarded when it is compressed. Therefore, it is impossible to produce an exact replica of the original audio signal when the audio is played. There are many different schemes of lossy compression available. These schemes generally provide varying compression ratios. The most popular of these, the MPEG Layer 3 (MP3) format, is commonly employed with compression ratios of up to ten to one. All lossy compression schemes add artifacts to the compressed audio. Artifacts are small imperfections created by the loss of the actual audio data. Although its quality may not seem that poor, the audio that has been processed by a lossy digital compressor is no longer "CD Quality". Lossless Compression Lossless compressors produce an exact replica of the original source. For example, the zip file format produced by the Winzip program on a PC produces exact copies of the original material that was encoded within the zip file. Fortunately, there is at least one lossless compression scheme available for Windows PCs. It's known as Shorten, an audio format that creates an exact clone of the original source. Lossless compression is the only way to preserve the "CD Quality" level of your program material.

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<< Back to: comp.compression Frequently Asked Questions (part 1/3)

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Question by spider
Submitted on 10/21/2003
Related FAQ: comp.compression Frequently Asked Questions (part 1/3)
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what is the difference between lossless and lossy

Answer by Yoda
Submitted on 2/4/2004
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To my knowledge lossless means the file will remain fully intact when you receive it. Do this for picture files if you anren't'going to print them off or just don't really care about the quality. Lossy means that you lose part of the file in the process. I don't know a whole lot of technical things about this but you probably don't want to send a video file in this type of compression.

Answer by g81
Submitted on 3/15/2005
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bunch of losers

Answer by grateful
Submitted on 9/7/2006
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mine too please

Answer by Masud_diu
Submitted on 2/27/2007
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what is the difference between lossless and lossy...................

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