13 lines
880 B
Text
13 lines
880 B
Text
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LPAC is a codec (coder / decoder) for lossless compression of digital audio
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files. "Lossless" means that any compressed file can be decompressed in a way
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it will be bit-wise identical with the original. This is the main advantage
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of LPAC compared to lossy formats like MP3, WMA or RealAudio. On the other
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hand, lossy codecs can achieve higher compression ratios. For example, MP3 at
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128 kbit/s achieves a (fixed) compression ratio of 11, whereas LPAC's
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compression ratios range from 1.5 to 4, strongly depending on the audio
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material. Typically they are around 2 for pop music and 2.5 for classical
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music. This may not seem much, but remember you will get back every single
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bit, no matter how often you subsequently compress and decompress a file. It
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is true that general archivers (Zip, LZH, gzip) are lossless, too, but they
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often achieve nearly no compression on audio files.
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