---
title: UTTypeMPEG4Audio
framework: uniformtypeidentifiers
role: symbol
role_heading: Global Variable
path: uniformtypeidentifiers/uttypempeg4audio
---

# UTTypeMPEG4Audio

A type that represents an MPEG-4 audio layer file.

## Declaration

```occ
extern UTType * const UTTypeMPEG4Audio;
```

## Discussion

Discussion The identifier for this type is public.mpeg-4-audio. This type conforms to UTTypeMPEG and UTTypeAudio.

## See Also

### Audio and video

- [UTTypeQuickTimeMovie](uniformtypeidentifiers/uttypequicktimemovie.md)
- [UTTypeMPEG](uniformtypeidentifiers/uttypempeg.md)
- [UTTypeMPEG2Video](uniformtypeidentifiers/uttypempeg2video.md)
- [UTTypeMPEG2TransportStream](uniformtypeidentifiers/uttypempeg2transportstream.md)
- [UTTypeMPEG4Movie](uniformtypeidentifiers/uttypempeg4movie.md)
- [UTTypeAppleProtectedMPEG4Video](uniformtypeidentifiers/uttypeappleprotectedmpeg4video.md)
- [UTTypeAppleProtectedMPEG4Audio](uniformtypeidentifiers/uttypeappleprotectedmpeg4audio.md)
- [UTTypeAVI](uniformtypeidentifiers/uttypeavi.md)