---
title: VZAudioOutputStreamSink
framework: virtualization
role: symbol
role_heading: Class
path: virtualization/vzaudiooutputstreamsink
---

# VZAudioOutputStreamSink

The base class for an audio output stream sink.

## Declaration

```swift
class VZAudioOutputStreamSink
```

## Overview

Overview An audio output stream sink defines how the host system consumes audio data from a guest. Don’t instantiate VZAudioOutputStreamSink directly, use one of its subclasses, such as VZHostAudioOutputStreamSink instead.

## Relationships

### Inherits From

- [NSObject](objectivec/nsobject-swift.class.md)

### Inherited By

- [VZHostAudioOutputStreamSink](virtualization/vzhostaudiooutputstreamsink.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Audio streams

- [VZHostAudioOutputStreamSink](virtualization/vzhostaudiooutputstreamsink.md)
- [VZHostAudioInputStreamSource](virtualization/vzhostaudioinputstreamsource.md)
- [VZAudioInputStreamSource](virtualization/vzaudioinputstreamsource.md)