1. Different types

Lossless music is a type of music file playback format. Music file playback formats are divided into two types: lossy compression and lossless compression. However, due to data loss during audio digitization, it is actually impossible to achieve true losslessness now.

2. Different formats

The commonly seen MP3, WMA, and OGG are called lossy compression. As the name suggests, lossy compression means to reduce the audio sampling frequency and bit rate, and the output audio file will be smaller than the original file.

Another type of audio compression is called lossless compression, which can compress the size of the audio file to a smaller size while retaining 100% of all the data of the original file, and restore the compressed audio file. , able to achieve the same size and the same code rate as the source file.

Common and mainstream lossless compression formats currently include APE, FLAC, TTA, and TAK.

Extended information:

Encoding format:

APE

APE is one of the popular digital music file formats. APE is a lossless compression audio technology, that is to say, when you compress the audio data file read from the audio CD into the APE format.

You can also restore files in APE format, and the restored audio files will be exactly the same as before compression without any loss.

FLAC

FLAC is the abbreviation of Free Lossless Audio Codec, which can be interpreted as lossless audio compression coding in Chinese. FLAC is a well-known set of free audio compression codes, which is characterized by lossless compression.

Unlike other lossy compression codes such as MP3 and AAC, it does not destroy any original audio information, so it can restore the sound quality of music CDs. It has been supported by many software and hardware audio products since 2012.

FLAC is similar to MP3, but it is lossless compression, which means that audio will not lose any information when compressed in FLAC.

This compression method is similar to Zip, but FLAC will give you a larger compression ratio, because FLAC is a compression method specially designed for the characteristics of audio, and you can use a player to play FLAC compression file, just like you would normally play your MP3 files.

FLAC is free and supports most operating systems, including Windows, "unix" (Linux, BSD, Solaris, OSX, IRIX), BeOS, OS/2, and Amiga.

And FLAC provides a build system on the development tools autotools, MSVC, Watcom C, and ProjectBuilder.

Reference: Baidu Encyclopedia-Lossless Music