Audio Interchange File Format: Difference between revisions

Latest revision as of 16:33, 13 August 2018

AIFF files exclusively store audio data. They serve as somewhat of an Apple analog of the Microsoft Wave format.

The sample rate is stored as an extended precision float (80 bits, 10 bytes)

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 * Extensions: aif, aiff
 * Company: [[Apple]]
+* Official Specification: http://multimedia.cx/mirror/AudioIFF1_2_1.htm
+* MIME Types:
+** aif, aiff: audio/aiff, audio/x-aiff, or audio/x-pn-aiff
+* Samples: http://www-mmsp.ece.mcgill.ca/Documents/AudioFormats/AIFF/Samples.html
 AIFF files exclusively store audio data. They serve as somewhat of an Apple analog of the [[Microsoft Wave]] format.
+Comprehensive AIFF tag listing: http://hul.harvard.edu/jhove/aiff-hul.html
+== Sample Rate ==
+The sample rate is stored as an extended precision float (80 bits, 10 bytes)
+{| class="wikitable"
+|+ SampleRate Layout
+|-*
+! scope="col" | Type
+! scope="col" | Size
+|-
+| SignBit || 1 bit.
+|-
+| Exponent || 15 bits.
+|-
+| Mantissa || 64 bits.
+|}
+{| class="wikitable"
+|+ Example Sample Rates
+|-*
+! scope="col" | Value
+! scope="col" | Bitset
+|-
+| 8000 || 0x400BFA00000000000000
+|-
+| 44100 || 0x400EAC44000000000000
+|-
+| 48000 || 0x400EBB80000000000000
+|-
+| 88200 || 0x400FAC44000000000000
+|-
+| 96000 || 0x400FBB80000000000000
+|-
+| 192000 || 0x4010BB80000000000000
+|}
 [[Category:Container Formats]]