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| AIFF (audio format) | |
|---|---|
| Name | AIFF |
| Extension | .aiff, .aif |
| Developer | Apple Inc. |
| Introduced | 1988 |
| Type | Audio file format |
| Container for | Pulse-code modulation, compressed audio |
AIFF (audio format) AIFF is an audio file format developed for high-quality sound storage and exchange on personal computers and digital workstations. It was introduced by Apple Inc. and widely adopted in professional audio, broadcasting, and multimedia production, supported by hardware and software from vendors such as Digidesign, Yamaha Corporation, Roland Corporation, Sony Corporation, and Avid Technology. AIFF has influenced standards and workflows used at institutions like BBC, NPR, Universal Music Group, Warner Music Group, and in products from Adobe Systems, Steinberg Media Technologies, Ableton, and Avid.
AIFF was announced by Apple Inc. in 1988 to provide a standardized container for uncompressed audio, addressing needs from companies like Mackie, Soundcraft, SSL (Solid State Logic), and studios such as Abbey Road Studios and Sun Studio. Early adoption occurred alongside workstations from Commodore, Amiga developers, and software like Pro Tools and Cubase. Industry standards bodies and vendors including AES and IEC interacted with AIFF’s development indirectly as the market evolved toward formats such as WAV from Microsoft Corporation and IBM. AIFF extensions and derivatives emerged through collaborations with firms like MPEG LA partners and codec developers at Fraunhofer Society and Xiph.Org Foundation.
AIFF uses an IFF-style chunked architecture originally from Electronic Arts and Commodore-Amiga systems, organizing data into named chunks similar to containers from RIFF-based formats by Microsoft Corporation. Core chunks include a header chunk describing channels, sample size, and sample rate, followed by a sound data chunk containing interleaved PCM frames; optional chunks carry markers, instrument data, and application-specific metadata. Tools from vendors such as Apple Inc., Avid Technology, Adobe Systems, Steinberg Media Technologies, Waves Audio, and iZotope parse these chunks for editing, mastering, and format conversion. AIFF’s structure has parallels with formats adopted by institutions like NHK, NPR, CBC, and has influenced archival practices at libraries such as Library of Congress.
The canonical AIFF specification stores linear PCM audio with bit depths commonly at 16-bit, 24-bit, and 32-bit float, matching professional equipment from manufacturers like Avalon, Neve, API (Audio Precision), and formats used in consoles by Yamaha Corporation and SSL (Solid State Logic). Compressed variants use codecs created by third parties including Apple Inc. (e.g., IMA ADPCM), codec vendors like Fraunhofer Society, and codec libraries from Xiph.Org Foundation. Workflows in digital audio workstations such as Pro Tools, Logic Pro, Reaper, Cubase, Ableton Live, and Studio One often rely on AIFF for uncompressed master files, interfacing with hardware converters from Apogee Electronics, Antelope Audio, RME, and Focusrite.
AIFF supports metadata via dedicated chunks and application-specific extensions used by software from Apple Inc., Adobe Systems, Avid Technology, and third-party tools from Sound Devices and ZOOM Corporation. Common metadata types include markers, loop points, instrument parameters, and descriptive tags for title, artist, and copyright, interoperating with cataloging systems at labels like Sony Music Entertainment and EMI Group. Third-party metadata schemes, including those from DDEX, MusicBrainz, and organizations like IFPI, are embedded by mastering suites and metadata editors to support rights management and distribution across platforms such as Spotify, Apple Music, and Tidal.
Broad support exists across operating systems and applications: macOS and iOS natively handle AIFF via frameworks from Apple Inc., while Windows support is provided by media players such as VLC media player, Windows Media Player, and audio editors like Audacity and Adobe Audition. Professional DAWs from Avid Technology, Steinberg Media Technologies, Celemony, and Image-Line include import/export routines. Hardware compatibility spans recorders and interfaces by Zoom Corporation, Tascam, Sound Devices, Focusrite, and digital consoles by Yamaha Corporation and Allen & Heath. Archival institutions like the British Library and Library of Congress list uncompressed AIFF among acceptable preservation formats, alongside standards from ISO and IEC.
AIFF is used for mastering, archival storage, broadcast stems, and sample libraries by companies such as Native Instruments, Splice, Loopmasters, and studios like Capitol Studios and Electric Lady Studios. Compared with WAV from Microsoft Corporation, AIFF offers similar PCM fidelity but differs in container origins and chunk naming; compared with compressed formats like MP3 and AAC from Fraunhofer Society and Dolby Laboratories, AIFF preserves full-resolution audio at larger file sizes. For archival versus streaming needs, organizations like Netflix, Amazon Studios, and Disney balance AIFF masters with codec-efficient delivery formats such as Opus and HE-AAC.
AIFF’s original specification by Apple Inc. is openly implemented by many parties, with licensing considerations primarily arising from patented codecs or embedded metadata standards held by entities like Fraunhofer Society, Dolby Laboratories, MPEG LA, and rights societies such as ASCAP, BMI, and SESAC. Commercial use in distribution requires compliance with licensing for codecs, sample content, and metadata frameworks managed by organizations like DDEX and IFPI. Legal preservation and distribution policies at archives including National Archives (UK), Library of Congress, and broadcasters such as BBC govern retention, access, and rights clearance when AIFF files contain copyrighted performances or masters.
Category:Audio file formats