---
title: AudioFileTypeID
framework: audiotoolbox
role: symbol
role_heading: Type Alias
path: audiotoolbox/audiofiletypeid
---

# AudioFileTypeID

Operating system constants that indicate the type of file to be written or a hint about what type of file to expect from data provided.

## Declaration

```swift
typealias AudioFileTypeID = UInt32
```

## Topics

### Constants

- [kAudioFileAIFFType](audiotoolbox/kaudiofileaifftype.md)
- [kAudioFileAIFCType](audiotoolbox/kaudiofileaifctype.md)
- [kAudioFileWAVEType](audiotoolbox/kaudiofilewavetype.md)
- [kAudioFileSoundDesigner2Type](audiotoolbox/kaudiofilesounddesigner2type.md)
- [kAudioFileNextType](audiotoolbox/kaudiofilenexttype.md)
- [kAudioFileMP3Type](audiotoolbox/kaudiofilemp3type.md)
- [kAudioFileMP2Type](audiotoolbox/kaudiofilemp2type.md)
- [kAudioFileMP1Type](audiotoolbox/kaudiofilemp1type.md)
- [kAudioFileAC3Type](audiotoolbox/kaudiofileac3type.md)
- [kAudioFileAAC_ADTSType](audiotoolbox/kaudiofileaac_adtstype.md)
- [kAudioFileMPEG4Type](audiotoolbox/kaudiofilempeg4type.md)
- [kAudioFileM4AType](audiotoolbox/kaudiofilem4atype.md)
- [kAudioFileCAFType](audiotoolbox/kaudiofilecaftype.md)
- [kAudioFile3GPType](audiotoolbox/kaudiofile3gptype.md)
- [kAudioFile3GP2Type](audiotoolbox/kaudiofile3gp2type.md)
- [kAudioFileAMRType](audiotoolbox/kaudiofileamrtype.md)

## See Also

### Constants

- [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 Properties](audiotoolbox/1576499-audio-file-properties.md)
- [Audio File Global Info Properties](audiotoolbox/1576495-audio-file-global-info-propertie.md)