---
title: decibelAWeightedSoundPressureLevel()
framework: healthkit
role: symbol
role_heading: Type Method
path: healthkit/hkunit/decibelaweightedsoundpressurelevel()
---

# decibelAWeightedSoundPressureLevel()

Returns a HealthKit unit for measuring the difference between the local pressure and the ambient atmospheric pressure caused by sound.

## Declaration

```swift
class func decibelAWeightedSoundPressureLevel() -> Self
```

## See Also

### Related Documentation

- [decibelHearingLevel()](healthkit/hkunit/decibelhearinglevel().md)

### Constructing pressure units

- [pascal()](healthkit/hkunit/pascal().md)
- [pascalUnit(with:)](healthkit/hkunit/pascalunit(with:).md)
- [millimeterOfMercury()](healthkit/hkunit/millimeterofmercury().md)
- [inchesOfMercury()](healthkit/hkunit/inchesofmercury().md)
- [centimeterOfWater()](healthkit/hkunit/centimeterofwater().md)
- [atmosphere()](healthkit/hkunit/atmosphere().md)