---
title: MPEG4ObjectID.CELP
framework: coreaudiotypes
role: symbol
role_heading: Case
path: coreaudiotypes/mpeg4objectid/celp
---

# MPEG4ObjectID.CELP

A constant that specifies code-excited linear prediction, which is a narrow-band/wide-band speech codec.

## Declaration

```swift
case CELP
```

## See Also

### Constants

- [MPEG4ObjectID.AAC_LC](coreaudiotypes/mpeg4objectid/aac_lc.md)
- [MPEG4ObjectID.AAC_LTP](coreaudiotypes/mpeg4objectid/aac_ltp.md)
- [MPEG4ObjectID.aac_Main](coreaudiotypes/mpeg4objectid/aac_main.md)
- [MPEG4ObjectID.AAC_SBR](coreaudiotypes/mpeg4objectid/aac_sbr.md)
- [MPEG4ObjectID.AAC_SSR](coreaudiotypes/mpeg4objectid/aac_ssr.md)
- [MPEG4ObjectID.aac_Scalable](coreaudiotypes/mpeg4objectid/aac_scalable.md)
- [MPEG4ObjectID.HVXC](coreaudiotypes/mpeg4objectid/hvxc.md)
- [MPEG4ObjectID.twinVQ](coreaudiotypes/mpeg4objectid/twinvq.md)