---
title: isAlive
framework: Core Audio
role: symbol
role_heading: Instance Property
platforms: [macOS 15.0+]
path: coreaudio/audiohardwareclock/isalive
---

# isAlive

A Bool where a value of true indicates the device is ready and available and false indicates the device is unusable and will most likely go away shortly.

## Declaration

```swift
var isAlive: Bool { get throws }
```