Audio Format Files, Types, Formats, Extensions

Audio Format Files, Types, Formats, Extensions

Extension Name Extension Type Category Dev.Company File Format Description
.AA File Extension Audible Audio Book File Audio Audible Binary Digital audio format used by Audible to store audio books; designed for storing spoken word audio and supports chapter markers, bookmarks, etc.
.AMR File Extension Adaptive Multi-Rate Codec File Audio N/A Binary Compressed audio format developed by Ericsson; used by many 3G cell phones for voice recordings such as MMS messages; incorporates the Algebraic Code Excited Linear Prediction (ACELP) algorithm, which is designed to efficiently compress human speech audio.
.ACT File Extension ADPCM Compressed Audio File Audio N/A Unknown Audio Format recorded by some voice recorders and MP3 players; compressed using Adaptive Differential Pulse Code Modulation.
.AC3 File Extension Audio Codec 3 File Audio N/A Binary Audio file saved in the AC-3 (Dolby Digital) audio format; can include up to six channels of audio (DD 5.1 surround sound with subwoofer output); uses lossy compression and often used as the format for DVDs, cinema theaters, and Game consoles.
.AWB File Extension AMR-WB Audio File Audio N/A Unknown Audio Format known as "Adaptive Multi Rate - WideBand" (AMR-WB) that uses a patented speech coding standard; similar to an .AMR file, but supports a wider frequency bandwidth of 50 Hz to 7 KHz; supports nine different bit rates, from 6.6 kbps to 23.85 kbps.
.ATRAC File Extension Sony ATRAC Audio File Audio Sony Binary Audio Format used by Sony electronic devices, such as the PlayStation Portable (PSP) and Sony Digital Audio players; ATRAC stands for "Adaptive Transform Acoustic Coding" and refers to multiple compression algorithms developed by Sony.
.DWD File Extension DavkaWriter File Text Davka Corporation Text File created by DavkaWriter, an English and Hebrew word processor; supports a Hebrew keyboard, spell checker, Jewish calendar, and other features; contains formatted text, images, objects, fonts, etc.
.DCT File Extension Dictionary File Misc N/A Unknown Data File used by various dictionary, translation, or word Processing Applications; typically contains a list of words and may also include definition or translation information; often used for spell-checking and may be available in different Languages.
.DIG File Extension Digilink Audio File Audio N/A Unknown Audio file saved in the Digilink format.
.DFF File Extension RenderWare Model File 3D Image N/A Unknown Three-dimensional model saved in the RenderWare binary stream format; used by various CAD programs and 3D Games, such as Grand Theft Auto 3 (GTA3); organized into multiple sections that describe the geometry and materials that compose the model.
.EAR File Extension Eyemail Audio Recording Audio Eyemail Technology Unknown Audio Format used by Eyemail Technology Inc. (ETI) Camcorder 2, a video recording program for Nokia Mobile Phones; related to the .EYE video format.
.EFA File Extension Ensoniq ASR File Audio N/A Unknown Audio Format used by the Ensoniq Advanced Sampling Recorder (ASR), a digital music production studio released by Ensoniq in the early 1990s
.ESPS File Extension ESPS Sampled Data File Audio N/A Unknown Proprietary audio format created by Entropic Research Laboratories and used for its WAVES+ display program, ESPS signal processing library and the HTK speech recognition toolkit
.FLAC File Extension Free Lossless Audio Codec File Audio N/A Binary Open-source audio format that uses lossless audio compression, meaning it does not remove any of the original audio data; compresses Audio Files with no loss in quality.
.F3R File Extension Farandoyle Blocked Module File Audio N/A Unknown Farandoyle tracker music module audio format, similar to an .F2R file, but contains data in blocks instead of a linear format
.F2R File Extension Farandoyle Linear Module File Audio N/A Unknown Farandoyle tracker music module audio format
.GSM File Extension Global System for Mobile Audio File Audio N/A Binary Audio Format designed for telephony use in Europe; optimized for recording vocal audio, such as a telephone conversation.
.GSM File Extension Global System for Mobile Audio File Audio N/A Binary Audio Format designed for telephony use in Europe; optimized for recording vocal audio, such as a telephone conversation.
.G721 File Extension G.721 Audio File Audio N/A Unknown Audio Format that contains raw G.721 4bit ADPCM (Adaptive Differential Pulse-Code Modulation) data; defined by the CCITT (International Telegraph and Telephone Consultative Committee)
.G723 File Extension G.723 Audio File Audio N/A Unknown Audio Format that contains raw G.723 5-bit ADPCM (Adaptive Differential Pulse-Code Modulation) data; defined by the CCITT (International Telegraph and Telephone Consultative Committee)
.G726 File Extension G.726 Audio File Audio N/A Unknown Audio Format that contains raw G.726 2, 3, 4, or 5-bit ADPCM (Adaptive Differential Pulse-Code Modulation) data; defined by the CCITT (International Telegraph and Telephone Consultative Committee).
.KOZ File Extension Bell Music File Audio N/A Unknown Song downloaded to a cell phone from Full Track Music; used by Bell Canada / Bell Mobile for phones such as the Sanyo MM-7500
.KIN File Extension Kinetic Music Project Audio Cakewalk Unknown Audio project file created by Kinetic, an application for creating electronic music; stores audio loops and instrument patches on a multitrack timeline; can be exported to common audio formats (e.g., .WAV or .MP3) and played in a standard audio player.
.LVP File Extension Avaya Voice Player Audio File Audio Avaya Binary Compressed audio format used by the Avaya Voice Player for making voice recordings; often used as a Web browser helper application for playing Avaya Voice files, but can also turn e-mail software into a voicemail system; designed to work with the Intuity Audix Multimedia Messaging System.
.LQT File Extension Liquid Audio File Audio Liquid Digital Media Unknown Music File saved in the proprietary copy-protected Liquid Audio Format; can only be opened and played with Liquid Audio Player and RealPlayer on authorized computers.
.MP3 File Extension MP3 Audio File Audio Moving Picture Experts Group Binary Compressed audio format developed by the Moving Picture Experts Group; uses "Layer 3" audio compression; commonly used to store music files and audiobooks on a hard drive; may provide near-CD quality sound (stereo, 16-bit) in a file roughly 1/10 the size of a .WAV or .AIF file.
.MMM File Extension Music Maker Arrangement File Audio MAGIX AG Binary File created by Music Maker, a music composition program; contains a multitrack arrangement comprised of music clips, transitions, and effects; can combine multiple imported audio formats into a single music composition.
.MXMF File Extension Mobile XMF Ringtone File Audio MIDI Manufacturers Association Binary Audio file created in the Mobile XMF (Extensible Music Format) format, an open standard audio format used for storing mobile phone ringtones; may contain both MIDI data as well as Mobile DLS (Downloadable Sounds) wavetable synthesized audio.
.MYR File Extension Myriad Music File Audio Myriad Software Unknown File used by Myriad music applications such as Melody Assistant, Harmony Assistant, and PDFtoMusic; saves sheet music and instrumentation for a musical composition; can be played back in the software and exported to various audio formats, including .WAV, .MP3, and .MID.
.MP2 File Extension Heroes of Might and Magic II Map File Game New World Computing Unknown Game map file used by Heroes of Might and Magic II (HOMM2), a turn-based strategy war Game; stores map data used to create the Gameplay environment; includes appearance information for grass, swamps, trees, ice, mountains, etc.
.MPU File Extension MPEG Layer 3 Audio File Audio N/A Binary Audio file saved in the MPEG (Moving Picture Experts Group) Layer 3 Audio Compressed audio format; contains sampled audio that may be compressed using different bit rates; may contain stereo, 16-bit, near-CD quality sound.
.MININCSF File Extension NCSF Nintendo DS Audio File Audio Naram Qashat Binary File created in the Nitro Composer Sound Format (NCSF), an audio format based on the Portable Sound Format (.PSF files) and used for storing Nintendo DS music; typically extracted from an NDS audio file (.SDAT) and can be played with Winamp or Foobar2000 with supporting plug-ins.
.OPUS File Extension Opus Audio File Audio Xiph.Org Binary Audio file created in the Opus format (also called "Ogg Opus"), a lossy audio format developed for Internet streaming; uses both SILK (used by Skype) and CELT (from Xiph.Org) codecs and supports variable bit rates from 6 kb/s to 510 kb/s.
.PCA File Extension Perfect Clarity Audio File Audio Sony Binary Audio Format used by Sony Sound Forge Pro audio editing program; originally created by Sonic Foundry, which was bought by Sony.
.PNA File Extension PhatNoise Audio File Audio PhatNoise Unknown Proprietary audio format developed by PhatNoise; playable with PhatNoise software or PhatNoise audio hardware, such as PhatBox automotive sound systems; supported on Windows systems directly and on Mac OS X via third party support.
.RMJ File Extension Real Media Jukebox Audio File Audio RealNetworks Binary Proprietary audio format used by Real Media Jukebox, also known as RealJukebox; saved in a slightly different format than .RA and .RAM files, which are used by RealPlayer.
.RMF File Extension Rich Music Format Audio File Audio Beatnik Binary Audio file created in the Rich Music Format, an audio format created by Beatnik; used as a container format for MIDI files and other standard audio formats; can be encrypted to protect original music; used by some older video Games.
.SID File Extension Steam Game Data Backup File Game Valve Binary Backup file created by Steam, an application used to download and manage Valve video Games on desktop computers; contains compressed Game data created by the Steam Backup feature (steamBackup.exe program); used to Backup Games to DVDs or other external media.
.SMP File Extension SmartMusic Performance File Audio MakeMusic Unknown Music File used by SmartMusic, a music practice application for band, orchestra, and voice; saves an accompaniment that can be used for practicing solos and other musical parts; includes the sheet music information and can be used for assessment; replaced by the .SMPX in Finale 2014.
.SOU File Extension SBStudio II Sound File Audio N/A Unknown Audio Format used by SBStudio; package file that contains audio data in block format; similar to a .PAC file, but only contains audio data.
.SPPACK File Extension SPPack Sound Sample Audio N/A Unknown SPPack sampled audio format used by AT&T and Bell Labs; stores frequency domain and quefrency domain data.
.SD File Extension ESPS Sampled Data File Audio N/A Unknown Audio Format created by Entropic Research Laboratories and used for the WAVES+ display program, ESPS signal processing library, and the HTK speech recognition toolkit
.SD File Extension ESPS Sampled Data File Audio N/A Unknown Audio Format created by Entropic Research Laboratories and used for the WAVES+ display program, ESPS signal processing library, and the HTK speech recognition toolkit
.SDII File Extension Sound Designer 2 Audio File Audio Avid Technology Binary Audio file formatted with the Sound Designer II standard, a mono and stereo audio format developed by Digidesign (now Avid); stores sample rate and bit depth data in addition to the audio data itself; commonly used for transferring audio data between Digital Audio workstation (DAW) applications.
.TOC File Extension Eudora Table of Contents Misc QUALCOMM Unknown Contains a table of contents for messages stored within a certain Eudora mail folder; lists all the messages that are displayed when a mail folder is opened within Eudora.
.VOI File Extension VOI Group File Data SPAMALIZE Binary Group of Volume of Interest (VOI) Drawings used by the medical program BrainMaker; defines 3D regions of interest (ROIs) on MRI and PET brain scans; VOIs are saved as groups using the VOIGroup Manager, which is a component of BrainMaker.
.VMF File Extension Valve Map File Game Valve XML Game level or map file created with the Valve Hammer Editor version 4 or later; used for creating custom levels for Half-Life, a first-person shooter Game; stores level information in an XML-style format.
.VRF File Extension Ventrilo Audio Recording Audio N/A Unknown Compressed audio format used by Ventrilo for voice communication over the Internet; may involve multiple people and multiple channels; proprietary format that is difficult to convert to more popular formats such as .WAV and .MP3
.VQF File Extension TwinVQ Audio File Audio Yamaha Binary Audio Format developed by the Nippon Telegraph and Telephone Corporation (NNT Labs); uses transform-domain weighted interleaved vector quantization to compress audio data; can be encoded in 80, 96, 112, 128, 160, and 192 kbps bitrates.
.WPP File Extension WebPlus Project File Web Serif Unknown Website Development project created with Serif WebPlus, a graphic-based Web design program; WebPlus pages may contain text, images, podcasts, YouTube Videos, Flash Animations, secure pages, e-Commerce functionality, and dynamic content.
.ZVD File Extension ZyXEL Voice File Audio N/A Unknown Audio Format used for transferring voice over the Z-Fax fax/modem from ZyXEL Communications.
.BRSTM File Extension BRSTM Audio Stream File Audio N/A Binary Audio file used by some Nintendo Wii Games; may save a sound effect or background music that is looped during Gameplay; sometimes copied from a Wii memory card and converted to more common audio formats.
.AHX File Extension WinAHX Tracker Module Audio N/A Binary File created in Abyss Highest Experience (AHX) format, an audio format for creating synthesized music similar to that played on Commodore 64 systems; supports C64 waveforms including the triangle, sawtooth, square, and white noise.
.CAFF File Extension Core Audio File Audio Apple Binary Audio file stored in the Core Audio Format (CAF), a digital audio format based on Apples Core Audio technology; may include text annotations, channel layouts, and other information in addition to the audio data itself; more commonly uses the .CAF extension.
.DS2 File Extension Olympus DSS Pro Audio File Audio Olympus Binary Audio file created in the Digital Speech Standard Pro (DS2) format, a highly compressed audio format developed by Olympus for digital voice recordings; typically contains a recording of human speech that is saved to a recording devices memory card; used for saving personal and professional notes, often by laywers, researchers, and physicians; useful for sending as email attachments because of the highly compressed file size.
.DVF File Extension Sony Digital Voice File Audio Sony Unknown Compressed audio file format used by Sonys IC digital audio recorders, such as the ICD-BP100 and ICD-BP150; saved in a proprietary audio format that is only recognized by Sony software.
.EYE File Extension Eyemail Video Recording File Video ETI Unknown Video format based on the Eyeris encoding algorithm developed by Eyemail Technology Inc. (ETI); used for storing recordings captured with ETIs Camcorder Pro; related to the .EAR audio format, but may contain both audio and video.
.MPDP File Extension MixPad Project File Audio NCH Software Binary Audio project created by MixPad, a multi-track music mixing application; saves multiple tracks, each of which that can have its own waveforms, edits, and effects; can be exported to .MP3, .WAV, .M4A, or various other audio formats when mixing is complete.
.PTCOP File Extension PxTone Audio File Audio Pixel Unknown PxTone tracker audio format, created by Pixel, the Japanese programmer behind the game Cave Story; is an evolution of the music engine used for Cave Story, Organya.
.SD2F File Extension Sound Designer 2 File Audio Avid Technology Binary Audio file created in the Sound Designer II format, a mono and stereo audio format developed by Digidesign (now Avid) for the companys audio editing products; contains audio data and the sample rate and bit depth information; often used as an interchange format between digital audio workstation (DAW) applications.


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