---
title: soOutputToAudioDevice
framework: Application Services
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.6+]
path: applicationservices/1552228-speech-channel_information_constants/sooutputtoaudiodevice
---

# soOutputToAudioDevice

## Declaration

```occ
soOutputToAudioDevice = 'opad'
```

## Discussion

Pass a pointer to an [AudioDeviceID](../../coreaudio/audiodeviceid.md) in the `speechInfo` parameter to play to this file, or `0` to play through the default audio output device.

This selector works with the `SetSpeechInfo` function.