---
title: isSignalCompensationDelaySupported
framework: avfoundation
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+]
path: avfoundation/avexternalsyncdevice/issignalcompensationdelaysupported
---

# isSignalCompensationDelaySupported

Whether adjusting the signal compensation delay property is currently supported.

## Declaration

```swift
var isSignalCompensationDelaySupported: Bool { get }
```

## Discussion

Discussion This property returns true if the signalCompensationDelay can be adjusted. signalCompensationDelay can be adjusted while the AVCaptureSession is not running. Once the session is running, this property’s value depends on isAdjustingSignalCompensationDelayWhileRunningSupported of the AVCaptureDevice backing the AVCaptureDeviceInput that is following this external sync device. Inspect that property in advance to determine whether signalCompensationDelay will remain adjustable while running on a given device.