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Monkey's Audio
Developer(s)Matthew T. Ashland
Initial release2000; 20 years ago
Stable release
TypeAudio compression
LicenseMonkey's Audio Source Code License Agreement
Websitewww.monkeysaudio.com
Filename extension
.ape
Standardwww.monkeysaudio.com/developers.html
Open format?No

Monkey's Audio is an algorithm and file format for losslessaudio data compression. Lossless data compression does not discard data during the process of encoding, unlike lossy compression methods such as AAC, MP3, Vorbis, and Opus. Therefore, it may be decompressed to a file that is identical to the source material.

AppleCare+ for Mac extends your coverage to three years from your AppleCare+ purchase date and adds up to two incidents of accidental damage protection every 12 months, each subject to a service fee of $99 for screen damage or external enclosure damage, or $299 for other damage, plus applicable tax. 1 In addition, you’ll get 24/7 priority access to Apple experts by chat or phone. 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 AAC, MP3, Vorbis, and Opus.Therefore, it may be decompressed to a file that is identical to the source material. Similar to other lossless audio codecs, files encoded to Monkey's Audio are.

Provides decoding support for Monkey's Audio files (.APE) as well as APE Link files (.APL). Current version: 2.3.1, released on 2019-11-20 Change log: Fixed crash with too many tag fields. Works with foobar2000 v1.3 and newer. Download View version history Documentation. More components.

Similar to other lossless audio codecs, files encoded to Monkey's Audio are typically reduced to about half of the original size,[1] with data transfer time and storage requirements being reduced accordingly.

Comparisons[edit]

Like any lossless compression scheme, Monkey's Audio format takes up several times as much space as lossy compression formats. Typically about twice as much as a 320 kbit/s bitrate MP3 file. The upside is that no data is lost compared to the input file, making lossless codecs suitable for transcoding, or simply taking up approximately half as much space as raw PCM data.

Compared to FLAC, ALAC, or WavPack, Monkey's Audio is relatively slow to encode or decode files.

Although Monkey's Audio is distributed as freeware, it is not open source. Among other things, the source code license terms make it impossible to legally redistribute, and invites people to infringe on the GPL license of other software. This is not compatible with the Open Source Definition or Free Software Definition as stated by the Open Source Initiative and Free Software Foundation, respectively.[2][3]

Alternatively, FLAC and WavPack are available under open source licences, and are well supported in Linux distributions and in many applications. Since all of these formats are lossless, users can transcode between formats without generation loss.

While Monkey's Audio can achieve high compression ratios,[4] the cost is a dramatic increase in requirements on the decoding end. Many dedicated portable media players, and even flagship model smartphones have difficulty handling this. In comparison, most lossless codecs are asymmetric, meaning that the work done to achieve higher compression ratios, if selected by the user, slows down the encoding process, but has essentially no effect on the decoding requirements.[5]

Supported platforms[edit]

Officially, Monkey's Audio is available only for the Microsoft Windows platform. As of version 4.02 (19 January 2009) a DirectShow filter is distributed with the installer, allowing for compatibility with most media players running on the Windows operating system.[6]

Monkey's Audio is also supported on Linux and OS X using JRiver Media Center or Plex.

Monkey converter

A GPL-licensed version of the Monkey's Audio decoder has been independently written for Rockbox and is included in ffmpeg.[3][7] This code also provides playback support in applications that use GStreamer,[8] as well as DeaDBeeF.

A number of Mac OS X players and rippers support the format as well.[9]It is also available as a port and package on FreeBSD.[10]

Monkey's Audio files can be encoded and decoded on any platform which has a J2SE implementation, by the means of the unofficial JMAC library, which is Free software licensed under the GNU LGPL.

Hardware support[edit]

Monkey's Audio is supported natively on all modern Cowon multimedia media players, the FiiO X Series and some Cayin digital audio players.

On other hardware platforms, the open source firmware project Rockbox supports playback of Monkey's Audio files on most of its supported targets, but many lack sufficient processing power to play them on the higher compression settings.[5]

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See also[edit]

References[edit]

  1. ^Monkey's Audio official comparison
  2. ^Gentoo Bug 94477 - new ebuild: media-sound/mac (Linux ported version of Monkey's Audio converter)
  3. ^ abMichael Sebastian (25 June 2007). 'Ubuntu bug entry about Monkey's audio inclusion'.
  4. ^http://www.audiograaf.nl/losslesstest/Lossless%20audio%20codec%20comparison%20-%20revision%204.pdf
  5. ^ ab'SoundCodecMonkeysAudio < Main < Wiki'. Rockbox.org. 5 November 2010.
  6. ^'Monkey's Audio - a fast and powerful lossless audio compressor'. Monkeysaudio.com.
  7. ^http://ffmpeg.org/releases/ffmpeg-0.5.changelog
  8. ^gstreamer.freedesktop.orghttps://gstreamer.freedesktop.org/modules/gst-monkeysaudio.html. Retrieved 22 June 2020.Missing or empty title= (help)
  9. ^'Audio - Software for Macintosh'. Pure Mac.
  10. ^'FreshPorts -- audio/mac'. FreshPorts.
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External links[edit]

  • Monkey's Audio Official Website
  • APE Player Play Monkey's Audio files

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