Digital Audio Files, Types, Formats, Extensions

Digital Audio 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.
.AAXPLUGIN File Extension Avid Audio eXtension Plugin File Plugin Avid Technology Unknown Avid Audio eXtension (AAX) plugin format used by Pro Tools, a Digital Audio workstation (DAW); adds extra sound processing and audio effects to the application; examples include vintage compressor emulations, convolution reverbs, and noise reduction tools.
.AKP File Extension Akai Sampler File Audio N/A Binary Digital audio sample created by an Akai S5000, S6000, Z4, or Z8 sampler.
.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.
.CPR File Extension Cubase Project Audio Steinberg Media Technologies Binary Audio production project created by Cubase, a Digital Audio Workstation (DAW) application; stores project data such as audio and MIDI tracks, software instruments, audio effects, and mixer settings; also contains references to audio file assets.
.CWT File Extension Cakewalk SONAR Template Audio Cakewalk Unknown Template created by Cakewalk SONAR, a Digital Audio workstation (DAW) application; contains pre- or user-defined settings; used for editing music and sound samples; includes settings for different audio effects such as input gain/pan, volume, tempo, and speaker outputs.
.CDDA File Extension CD Digital Audio File Audio N/A Binary Audio file ripped from a CD formatted using the CD Digital Audio specification; can be extracted using applications such as ITunes or Logic Pro; used for saving CD audio data to a computer, as well as burning new CDs.
.CGRP File Extension Pro Tools Clip Group File Audio Avid Technology Binary File format introduced with Pro Tools 10 Digital Audio workstation (DAW) software; saves settings for clip gain, a feature of Pro Tools that allows users to change the levels of audio clips (e.g., reduce a certain section of a clip by 2.5 dB).
.CWP File Extension Cakewalk SONAR Project Audio Cakewalk Unknown Audio project file created by Cakewalk SONAR, a Digital Audio workstation (DAW) application; saves an audio production and supports multiple tracks, audio effects, MIDI data, and other parameters; used for editing music and sound samples.
.DSF File Extension DAZ Studio Asset File 3D Image DAZ Productions Zip 3D Modeling file format introduced with DAZ Studio 4 modeling software; may contain character, pose, shaping, shader, materials, or other data for a model created in the software; used for exchanging DAZ model information with other 3D Modeling programs that support the DSF format.
.DSP File Extension Dynamic Studio Professional Module Audio N/A Unknown Older type of tracker module used by the Dynamic Studio Digital Audio tracking program.
.DSM File Extension Digital Sound Module Audio N/A Unknown Tracker module format used by Digital Audio tracking programs; includes multiple tracks with Notes that compose a musical score; Notes are linked to sound samples, which are also included in the file.
.DWP File Extension DarkWave Studio Project File Data ExperimentalScene Binary Project File created by DarkWave Studio, an open source Digital Audio Workstation (DAW) application; stores project data, including instrument tracks, effects, and audio edits; can be exported to .WAV, .MP3, or .FLAC files.
.DDB File Extension Digidesign Database Data Avid Technology Binary Application support file created by Pro Tools, a Digital Audio workstation (DAW) application; contains application support information for an audio project and uses the filename volume.ddb.
.EXPRESSIONMAP File Extension Cubase Expression Map File Audio Steinberg Media Technologies Binary File used by Cubase, a Digital Audio workstation (DAW) application; contains settings that alter the style of a sampled instrument with player expressions, such as staccatos and tremolos.
.FRG File Extension Sony Sound Forge Pro Project File Audio Sony Binary Audio project created by Sound Forge Pro, a Digital Audio editing program; contains a multi-track project, which references audio data files and stores editing information such as EQ, fades, reverb, distortion, and delay.
.IMF File Extension Id Music File Audio id Software Binary Id Music File (IMF) created for use in id Software video Games; contains data similar to MIDI files in that the files do not contain sampled Digital Audio, but rather contain musical Notes; used to send music data for Playback on AdLib sound cards.
.LOGICX File Extension Logic Pro Project Audio Apple Unknown Audio project package created by Logic Pro Digital Audio workstation (DAW) software; contains audio tracks on a timeline, which includes imported audio data, recorded sounds, and loops; also stores audio edits such as transitions and effects.
.MXF File Extension Material Exchange Format File Video SMPTE Binary Multimedia format used by Digital Audio and video programs; contains captured audio and video data as well as metadata that describes the media stored in the file; designed by Society of Motion Picture and Television Engineers (SMPTE) as a standard container for audio and video data; can be converted into other formats, such as .AVI or .MOV.
.MU3 File Extension Myriad Packed Musical Score Audio Myriad Software Binary File created by Myriad musical notation software; saves sheet music as well as any Digital Audio data, but compresses the audio data with .MP3 or .OGG compression; differs from the .MUX format, which stores the instruments and sheet music, not the audio data.
.NPL File Extension Nokia Playlist File Data Nokia Binary Playlist of media files created with Nokia Multimedia Player, a media Playback program included in the Nokia PC Suite; may include references to audio and video files, as well as Multimedia message files, but does not contain the actual referenced files themselves.
.OVW File Extension Logic Pro Overview File Audio Apple Binary Visual waveform file created by Logic Pro, a Digital Audio workstation program; contains a visual representation of an imported audio file or audio data recorded with the software; used for showing track information on the audio timeline.
.PTX File Extension E-Transcript File Page Layout Thomson West Binary File created by E-Transcript Manager, a program used for creating certified electronic transcripts; contains transcript data recorded from a courtroom hearing; most commonly used by court reporting firms when creating legal transcripts for attorneys; created to reduce the file size of emailed transcripts.
.PTXT File Extension Pro Tools Session Template Audio Avid Technology Binary Session template used by Pro Tools, a Digital Audio workstation (DAW); may contain audio, instrument tracks, MIDI, and video media; also includes session presets such as mixing settings, effects, and other user edits.
.PIO File Extension Pro Tools I/O Settings File Settings Avid Technology Unknown Settings File created by Pro Tools, a Digital Audio workstation (DAW); saves input and output settings, including input sources, output formats, bus configurations, mic preamps, and H/W insert delay; allows settings to be saved and reused between sessions.
.PIM File Extension Pro Tools Controller Plug-in Mappings File Plugin Avid Technology Unknown File created by Pro Tools, a Digital Audio workstation for recording, editing, and mixing audio; contains a customized layout of parameters for a control surface (i.e., D-control, D-command, C24, and Command 8); allows plug-in control surface mappings to be saved and reloaded.
.PTS File Extension Pro Tools Session Audio Avid Technology Unknown Audio project created with Pro Tools Digital Audio workstation (DAW) software; may contain multiple audio and MIDI tracks, mixer settings, audio effects, and references to Audio Files; does not contain actual audio data.
.PTP File Extension Pro Tools Preferences File Settings Avid Technology Unknown Preferences file used by Pro Tools, a Digital Audio workstation (DAW); contains preferences for the configuration of the Pro Tools application; includes display, operation, editing, automation, processing, MIDI, and machine control preferences.
.PCM File Extension Pulse Code Modulation Audio N/A Binary Uncompressed (raw) Digital Audio file; a direct representation of the digital sample values (1s and 0s) of an audio recording; stores audio in a format also sometimes used in .WAV and .AIF files.
.SEQ File Extension PowerTracks Pro Audio Project File Audio PG Music Binary Audio project created with PowerTracks Pro Audio, a Digital Audio sequencing program; may include both audio and MIDI tracks, which can be played back at the same time; also stores digital mixer settings, such as track volume, panning, and effects.
.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.
.VST File Extension VST Audio Plugin Plugin Steinberg Unknown File or folder containing a VST (Virtual Studio Technology) plugin; used for creating or modeling audio effects; typically used by Digital Audio programs to modify recorded sounds.
.WAV File Extension WAVE Audio File Audio Microsoft Binary Standard Digital Audio file format used for storing waveform data; allows audio recordings to be saved with different sampling rates and bitrates; often saved in a 44.1 KHz, 16-bit, stereo format, which is the standard format used for CD audio.
.AAX File Extension Audible Enhanced Audiobook File Audio Audible Unknown Multimedia digital audiobook format developed by Audible; may be used by audiobooks available from Audible.com, AudibleKids, and the iTunes Store; similar to the standard .AA audiobook file type, but may include other features such as images and links.
.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.
.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.
.LOGIC File Extension Logic Pro Project File Audio Apple Unknown Audio project created by Logic Pro digital audio workstation (DAW) software; stores multiple audio tracks on a timeline and can include recorded sounds, imported audio data, and loops; may also include transitions, effects, and other audio edits; doesnt contain the actual audio data, but rather stores references to audio files.
.RX2 File Extension REX2 Audio File Audio Propellerhead Software Binary Audio loops file used by digital audio workstation (DAW) applications; contains audio loop samples stored in Propellerheads proprietary REX2 format; supports both mono and stereo, whereas the .REX format only supports mono.
.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.
.ZPA File Extension Vielklang Audio Metadata File Audio zplane Unknown File generated by vielklang, a digital audio workstation (DAW) plug-in tool used for automatically creating musical harmonies; contains melody properties about an imported audio file (often a .WAV file); includes notes, keys, and tuning frequency information; used by vielklang when computing harmonies.


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