---
title: peak
framework: musicunderstanding
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+, watchOS 27.0+]
path: musicunderstanding/loudnessresult/peak
---

# peak

The peak amplitude of the song in decibels (dB).

## Declaration

```swift
let peak: MusicUnderstandingSession.TimedValue<Float>
```

## See Also

### Getting loudness results

- [integrated](musicunderstanding/loudnessresult/integrated.md)
- [momentary](musicunderstanding/loudnessresult/momentary.md)
- [shortTerm](musicunderstanding/loudnessresult/shortterm.md)