---
title: kIOAudioStreamDirectionOutput
framework: IOKit
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 13.0+, macOS 10.1+]
path: iokit/ioaudiostreamdirection/kioaudiostreamdirectionoutput
---

# kIOAudioStreamDirectionOutput

## Declaration

```occ
kIOAudioStreamDirectionOutput = 0
```

## Discussion

Discussion Output buffer