---
title: Audio File Properties
framework: audiotoolbox
role: collectionGroup
role_heading: API Collection
path: audiotoolbox/1576499-audio-file-properties
---

# Audio File Properties

Properties used by the functions described in getting and setting pieces of data in audio files. See Working with Global Information for details.

## Topics

### Constants

- [kAudioFilePropertyFileFormat](audiotoolbox/kaudiofilepropertyfileformat.md)
- [kAudioFilePropertyDataFormat](audiotoolbox/kaudiofilepropertydataformat.md)
- [kAudioFilePropertyFormatList](audiotoolbox/kaudiofilepropertyformatlist.md)
- [kAudioFilePropertyIsOptimized](audiotoolbox/kaudiofilepropertyisoptimized.md)
- [kAudioFilePropertyMagicCookieData](audiotoolbox/kaudiofilepropertymagiccookiedata.md)
- [kAudioFilePropertyAudioDataByteCount](audiotoolbox/kaudiofilepropertyaudiodatabytecount.md)
- [kAudioFilePropertyAudioDataPacketCount](audiotoolbox/kaudiofilepropertyaudiodatapacketcount.md)
- [kAudioFilePropertyMaximumPacketSize](audiotoolbox/kaudiofilepropertymaximumpacketsize.md)
- [kAudioFilePropertyDataOffset](audiotoolbox/kaudiofilepropertydataoffset.md)
- [kAudioFilePropertyChannelLayout](audiotoolbox/kaudiofilepropertychannellayout.md)
- [kAudioFilePropertyDeferSizeUpdates](audiotoolbox/kaudiofilepropertydefersizeupdates.md)
- [kAudioFilePropertyDataFormatName](audiotoolbox/kaudiofilepropertydataformatname.md)
- [kAudioFilePropertyMarkerList](audiotoolbox/kaudiofilepropertymarkerlist.md)
- [kAudioFilePropertyRegionList](audiotoolbox/kaudiofilepropertyregionlist.md)
- [kAudioFilePropertyPacketToFrame](audiotoolbox/kaudiofilepropertypackettoframe.md)
- [kAudioFilePropertyFrameToPacket](audiotoolbox/kaudiofilepropertyframetopacket.md)
- [kAudioFilePropertyPacketToByte](audiotoolbox/kaudiofilepropertypackettobyte.md)
- [kAudioFilePropertyByteToPacket](audiotoolbox/kaudiofilepropertybytetopacket.md)
- [kAudioFilePropertyChunkIDs](audiotoolbox/kaudiofilepropertychunkids.md)
- [kAudioFilePropertyInfoDictionary](audiotoolbox/kaudiofilepropertyinfodictionary.md)
- [kAudioFilePropertyPacketTableInfo](audiotoolbox/kaudiofilepropertypackettableinfo.md)
- [kAudioFilePropertyPacketSizeUpperBound](audiotoolbox/kaudiofilepropertypacketsizeupperbound.md)
- [kAudioFilePropertyReserveDuration](audiotoolbox/kaudiofilepropertyreserveduration.md)
- [kAudioFilePropertyEstimatedDuration](audiotoolbox/kaudiofilepropertyestimatedduration.md)
- [kAudioFilePropertyBitRate](audiotoolbox/kaudiofilepropertybitrate.md)
- [kAudioFilePropertyID3Tag](audiotoolbox/kaudiofilepropertyid3tag.md)
- [kAudioFilePropertySourceBitDepth](audiotoolbox/kaudiofilepropertysourcebitdepth.md)
- [kAudioFilePropertyAlbumArtwork](audiotoolbox/kaudiofilepropertyalbumartwork.md)
- [kAudioFilePropertyAudioTrackCount](audiotoolbox/kaudiofilepropertyaudiotrackcount.md)
- [kAudioFilePropertyUseAudioTrack](audiotoolbox/kaudiofilepropertyuseaudiotrack.md)
- [kAudioFilePropertyID3TagOffset](audiotoolbox/kaudiofilepropertyid3tagoffset.md)
- [kAudioFilePropertyNextIndependentPacket](audiotoolbox/kaudiofilepropertynextindependentpacket.md)
- [kAudioFilePropertyPacketRangeByteCountUpperBound](audiotoolbox/kaudiofilepropertypacketrangebytecountupperbound.md)
- [kAudioFilePropertyPacketToDependencyInfo](audiotoolbox/kaudiofilepropertypackettodependencyinfo.md)
- [kAudioFilePropertyPacketToRollDistance](audiotoolbox/kaudiofilepropertypackettorolldistance.md)
- [kAudioFilePropertyPreviousIndependentPacket](audiotoolbox/kaudiofilepropertypreviousindependentpacket.md)
- [kAudioFilePropertyRestrictsRandomAccess](audiotoolbox/kaudiofilepropertyrestrictsrandomaccess.md)

## See Also

### Constants

- [AudioFileTypeID](audiotoolbox/audiofiletypeid.md)
- [Audio File Creation Flags](audiotoolbox/audio_file_creation_flags.md)
- [AudioFilePermissions](audiotoolbox/audiofilepermissions.md)
- [Audio File Loop Direction Constants](audiotoolbox/1576494-audio-file-loop-direction-consta.md)
- [Audio File Marker Types](audiotoolbox/1576492-audio-file-marker-types.md)
- [AudioFileRegionFlags](audiotoolbox/audiofileregionflags.md)
- [Audio File Packet Translation Flags](audiotoolbox/audio_file_packet_translation_flags.md)
- [Info String Keys](audiotoolbox/info-string-keys.md)
- [Audio File Global Info Properties](audiotoolbox/1576495-audio-file-global-info-propertie.md)