---
title: kAudioUnitErr_MultipleVoiceProcessors
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kaudiouniterr_multiplevoiceprocessors
---

# kAudioUnitErr_MultipleVoiceProcessors

## Declaration

```swift
var kAudioUnitErr_MultipleVoiceProcessors: OSStatus { get }
```