---
title: MasterAudioFunctions
framework: Kernel
role: symbol
role_heading: Structure
platforms: [macOS 10.6+]
path: kernel/masteraudiofunctions
---

# MasterAudioFunctions

## Declaration

```occ
typedef struct MasterAudioFunctions {
    ...
} MasterAudioFunctions;
```

## Topics

### Instance Properties

- [decrementMasterVolume](kernel/masteraudiofunctions/1571503-decrementmastervolume.md)
- [incrementMasterVolume](kernel/masteraudiofunctions/1571548-incrementmastervolume.md)
- [toggleMasterMute](kernel/masteraudiofunctions/1571535-togglemastermute.md)