---
title: calibratedLatency
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uiscreen/calibratedlatency
---

# calibratedLatency

The user-calibrated latency for the current screen.

## Declaration

```swift
var calibratedLatency: CFTimeInterval { get }
```

## Discussion

Discussion Use this property when you need to manually synchronize video playback with custom audio. For example, you might correlate this value with the latency property of a Core Audio unit when writing custom video-playback software. The value of this property is 0 until the user explicitly calibrates their display.