---
title: languageCode
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avmutablecompositiontrack/languagecode
---

# languageCode

The language associated with the track, as an ISO 639-2/T language code.

## Declaration

```swift
var languageCode: String? { get set }
```

## Discussion

Discussion The default value is nil.

## See Also

### Configuring track properties

- [isEnabled](avfoundation/avmutablecompositiontrack/isenabled.md)
- [naturalTimeScale](avfoundation/avmutablecompositiontrack/naturaltimescale.md)
- [extendedLanguageTag](avfoundation/avmutablecompositiontrack/extendedlanguagetag.md)
- [preferredTransform](avfoundation/avmutablecompositiontrack/preferredtransform.md)
- [preferredVolume](avfoundation/avmutablecompositiontrack/preferredvolume.md)