---
title: attackCurve
framework: phase
role: symbol
role_heading: Instance Property
path: phase/phaseducker/attackcurve
---

# attackCurve

A mathematical curve that shapes transition progress as sound reduction begins.

## Declaration

```swift
var attackCurve: PHASECurveType { get }
```

## Discussion

Discussion This mathematical curve shapes signal progress during the time it takes for sound reduction to reach maximum strength.

## See Also

### Configuring Volume Reduction

- [gain](phase/phaseducker/gain.md)
- [identifier](phase/phaseducker/identifier.md)
- [isActive](phase/phaseducker/isactive.md)
- [attackTime](phase/phaseducker/attacktime.md)
- [releaseTime](phase/phaseducker/releasetime.md)
- [releaseCurve](phase/phaseducker/releasecurve.md)