AIFF is an audionumerical format of file developed by Apple to store the sounds on the computers of the mark. AIFF is an acronym which means has udio I nterchange F island F ormat .

This format is not without pointing out the format WAV of Microsoft.

Files AIFF generally carry the extension .aif, or .aiff.

The data are coded in PCM big-endian without compression. Thus, a track Audio CD, coded in 16 bits, stereophony 44,1 Khz will have a Bitrate of 1411,2 kbit/s. It exists nevertheless a compressed format (AIFF-C or AIFC) which supports a compression being able to go until a report/ratio 1/6.

" chunks"

A file AIFF is organized in " chunk" , each one being identified by an identifier FourCC. Principal the chunk is:

• Common Chunk (obligatory)
• Sound Dated Chunk (data) (obligatory)
• Marker Chunk
• Instrument Chunk
• How Chunk
• Name Chunk
• Author Chunk
• Copyright Chunk
• Annotation Chunk
• Audio Recording Chunk
• MIDDAY Dated Chunk
• Application Chunk

Compatible software AIFF

• QuickTime (thus Final cut Express, Pro, iMovie, Avid,… which uses all QuickTime)
• Sound Studio (Felt Tip software)
• Cubase
• Soundtrack Pro
• ITunes
• WaveSurfer
• Winamp
• certain software of the company Adobe Systems, like Adobe Hearing
• Audacity
• Play
• Reason

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