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Monkey's Audio is an algorithm and file format for lossless audio data compression. Lossless data compression does not discard data during the process of encoding, unlike lossy compression methods such as Advanced Audio Coding, MP3, Vorbis, and Opus. Therefore, it may be decompressed to a file that is identical to the source material.
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Lossy methods are most often used for compressing sound, images or videos. This is because these types of data are intended for human interpretation where the mind can easily "fill in the blanks" or see past very minor errors or inconsistencies – ideally lossy compression is transparent (imperceptible), which can be verified via an ABX test.
Audio file icons of various formats. An audio file format is a file format for storing digital audio data on a computer system. The bit layout of the audio data (excluding metadata) is called the audio coding format and can be uncompressed, or compressed to reduce the file size, often using lossy compression.
Audio in WAV files can be encoded in a variety of audio coding formats, such as GSM or MP3, to reduce the file size. All WAV files; even those that use MP3 compression use the .wav extension. This is a reference to compare the monophonic (not stereophonic) audio quality and compression bitrates of audio coding formats available for WAV files ...
It can convert audio to MP3, WMA, WAV, FLAC, AAC, M4A, and OGG, and can prepare files for playback on various portable media players, such as Zune, Coby, SanDisc, Sansa, iRiver, Walkman, Archos, and GoGear. It can convert audio files into M4A and M4R files for iPad, iPhone, and iPod and automatically adds converted files to the iTunes library.
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Lossy audio compression algorithms provide higher compression and are used in numerous audio applications including Vorbis and MP3. These algorithms almost all rely on psychoacoustics to eliminate or reduce fidelity of less audible sounds, thereby reducing the space required to store or transmit them.