无损音频格式介绍（Lossless audio format introduction）.doc

无损音频格式介绍（Lossless audio format introduction） At present, the most famous lossless compression formats are APE, FLAC, LPAC, WavPack. 1, FLAC Very mature lossless compression format, FLAC is the abbreviation of FreeLosslessAudioCodec, the source of this format is completely open, and compatible with almost all operating system platforms. Its coding algorithm is quite mature and has passed rigorous tests. This format not only has mature Windows production program, but also has many third party software support. In addition, the format is unique and has been hardware supported in lossless format. 2, APE (MonkeysAudio) APE is undoubtedly the most famous lossless compression format, and has been widely used in china. Its compression rate is excellent, and it is efficient and fast, and the comprehensive ability is definitely the leader of the day. And the widely used MonkeysAudio authoring software has greatly promoted the popularity of this format. However, APE also has many disadvantages, and its decoding speed is not ideal. It can only be used on the Windows platform, and the closed source code also affects its support. 3, WavPack WavPack is not just a lossless compression format, it can also be used as a lossy compression format. In its unique hybrid mode, WavPack can be compressed into WV files, lossy compression format, the size equivalent to about 23% of the WAV file + WVC correction file, the size is generally equivalent to about 41% of the portfolio WAV portfolio. With the corresponding WVC file, the WV file in the lossy compression format becomes lossless, playing exactly the same as the plain lossless compression format. If in order to reduce the file size, you can remove the WVC file, the WV file becomes lossy format, playing and high bit rate MP3 exactly the same! WavPack also incorporates lossless formats and lossy formats. 4, LPAC In the central rail of the lossless form of the index, the indicators are relatively average. The author, TilmanLiebchen, has als