APE is one of the popular lossless compression formats of digital music. Because of its early appearance, it has a wide user base all over the world, especially in Chinese mainland. Unlike the lossy compression format such as MP3, it irreversibly deletes data (insensitive to human hearing) to reduce the capacity of the source file.

APE, a lossless compression format, uses a finer recording method to reduce the volume, and the restored data is the same as the source file, thus ensuring the integrity of the file. APE was suppressed by audio of the software Monkey and developed by Matthew T. Ashland. The source code is open, and it is famous for its "monkey" logo on the interface.

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The principle of apes

As a lossless compressed audio format, APE can compress a huge WAV audio file into APE through Monkey's audio software. Although the volume is reduced, the sound quality is the same as before. The WAV file obtained after decompression and restoration of monkey's audio can be exactly the same as the source file before compression.

Therefore, APE is called "lossless audio compression format" and Monkey's audio is called "lossless audio compression software".

To put it simply, the compression principle of APE is similar to that of professional data compression software such as WinZip or WinRAR, except that APE audio files after lossless compression of digital music such as APE can be played directly. The compression ratio of APE is dynamic. When compressing, only the compressible part will be compressed, and the uncompressed part will remain.

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