---
title: preferredVolume
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcompositiontrack/preferredvolume
---

# preferredVolume

The track’s volume preference for playing its audible media.

## Declaration

```swift
var preferredVolume: Float { get }
```

## Discussion

Discussion The preferred volume for an audio track is typically, but not always, 1.0. For non-audible tracks, the value is 0.0.

## See Also

### Accessing audible characteristics

- [hasAudioSampleDependencies](avfoundation/avcompositiontrack/hasaudiosampledependencies.md)