---
title: "tracks(withMediaCharacteristic:)"
framework: avfoundation
role: symbol
role_heading: Instance Method
path: "avfoundation/avmutablecomposition/tracks(withmediacharacteristic:)"
---

# tracks(withMediaCharacteristic:)

Returns tracks that contain media of a specified characteristic.

## Declaration

```swift
func tracks(withMediaCharacteristic mediaCharacteristic: AVMediaCharacteristic) -> [AVMutableCompositionTrack]
```

## Parameters

- `mediaCharacteristic`: The media characteristic of the tracks to return.

## Return Value

Return Value An array of composition tracks, which is empty if there are no matching tracks.

## Discussion

Discussion Apple discourages using this method. Load tracks asynchronously using loadTracks(withMediaCharacteristic:completionHandler:) instead.

## See Also

### Accessing tracks

- [tracks](avfoundation/avmutablecomposition/tracks.md)
- [track(withTrackID:)](avfoundation/avmutablecomposition/track(withtrackid:).md)
- [tracks(withMediaType:)](avfoundation/avmutablecomposition/tracks(withmediatype:).md)