Editing Audio Interchange File Format (section)

==Common compression types==
AIFF supports only uncompressed PCM data. AIFF-C also supports compressed audio formats, which can be specified in the "COMM" chunk. The compression type is "NONE" for PCM audio data. The compression type is accompanied by a printable name. Common compression types and names include, but are not limited to:

{| class="wikitable sortable"
|+AIFF-C common compression types<ref name="aiff-spec" /><ref>{{cite web |url=http://shoko.calarts.edu/~tre/AIFFC/comptype.html |title=AIFF-C Compression Types and Names |author=Tom Erbe |year=1999 |access-date=2010-03-21 |archive-url=https://web.archive.org/web/20060620002145/http://shoko.calarts.edu/~tre/AIFFC/comptype.html |archive-date=2006-06-20}}</ref><ref>{{cite web |date=2005-05-09 |title=AIFF-hul Module |url=http://hul.harvard.edu/jhove/aiff-hul.html |url-status=dead |archive-url=https://web.archive.org/web/20100629090032/http://hul.harvard.edu/jhove/aiff-hul.html |archive-date=2010-06-29 |access-date=2010-03-21 |website=JSTOR/Harvard Object Validation Environment}}</ref>
|-
! Compression type
! Compression name
! Data
! Source
|-
| NONE
| not compressed
| PCM, big-endian
| Apple Inc.
|-
| sowt
| not compressed
| PCM, little-endian
| Apple Inc.
|-
| fl32
| 32-bit [[floating point]]
| [[IEEE]] 32-bit float
| Apple Inc.
|-
| fl64
| 64-bit floating point
| IEEE 64-bit float
| Apple Inc.
|-
| alaw
| ALaw 2:1
| 8-bit ITU-T [[G.711]] [[A-law]]
| Apple Inc.
|-
| ulaw
| μLaw 2:1
| 8-bit ITU-T G.711 [[μ-law]]
| Apple Inc.
|-
| ALAW
| [[CCITT]] G.711 A-law
| 8-bit ITU-T G.711 A-law (64&nbsp;kbit/s)
| SGI
|-
| ULAW
| CCITT G.711 u-law
| 8-bit ITU-T G.711 μ-law (64&nbsp;kbit/s)
| SGI
|-
| FL32
| Float 32
| IEEE 32-bit float
| SoundHack & Csound
|-
| ADP4
| 4:1 Intel/[[Digital Video Interactive|DVI]] [[ADPCM]]
| 
| Stéphane Tavenard (Audio Convert/Player) [[AmigaOS]]
|-
| ima4
| [[Interactive Multimedia Association|IMA]] 4:1
| 
| 
|-
| ACE2
| ACE 2-to-1
| 
| Apple IIGS ACE (Audio Compression/Expansion)
|-
| ACE8
| ACE 8-to-3
| 
| 
|-
| DWVW
| Delta with variable word width
| 
| TX16W Typhoon
|-
| MAC3
| MACE 3-to-1
| 
| Apple Inc.
|-
| MAC6
| MACE 6-to-1
| 
| Apple Inc.
|-
| Qclp
| [[Qualcomm]] PureVoice
| 
| Qualcomm
|-
| QDMC
| [[QDesign]] Music
| 
| QDesign
|-
| rt24
| RT24 50:1
| 
| Voxware
|-
| rt29
| RT29 50:1
| 
| Voxware
|-
| SDX2
| Square-Root-Delta
| Big-endian
| 3DO (Panasonic) / Mac (Apple)
|}