---
title: IOAudioLevelControl
framework: kernel
role: symbol
role_heading: Class
path: kernel/ioaudiolevelcontrol
---

# IOAudioLevelControl

## Declaration

```occ
class IOAudioLevelControl : IOAudioControl
```

## Topics

### Miscellaneous

- [create](kernel/ioaudiolevelcontrol/1811861-create.md)
- [init](kernel/ioaudiolevelcontrol/1811868-init.md)
- [setLinearScale](kernel/ioaudiolevelcontrol/1811880-setlinearscale.md)
- [setMaxDB](kernel/ioaudiolevelcontrol/1811889-setmaxdb.md)
- [setMaxValue](kernel/ioaudiolevelcontrol/1811896-setmaxvalue.md)
- [setMinDB](kernel/ioaudiolevelcontrol/1811907-setmindb.md)
- [setMinValue](kernel/ioaudiolevelcontrol/1811910-setminvalue.md)

### Instance Methods

- [addNegativeInfinity](kernel/ioaudiolevelcontrol/1493460-addnegativeinfinity.md)
- [addRange](kernel/ioaudiolevelcontrol/1493455-addrange.md)
- [free](kernel/ioaudiolevelcontrol/1493472-free.md)
- [getMaxDB](kernel/ioaudiolevelcontrol/1493469-getmaxdb.md)
- [getMaxValue](kernel/ioaudiolevelcontrol/1493448-getmaxvalue.md)
- [getMetaClass](kernel/ioaudiolevelcontrol/1493452-getmetaclass.md)
- [getMinDB](kernel/ioaudiolevelcontrol/1493462-getmindb.md)
- [getMinValue](kernel/ioaudiolevelcontrol/1493454-getminvalue.md)
- [init](kernel/ioaudiolevelcontrol/1493466-init.md)
- [setLinearScale](kernel/ioaudiolevelcontrol/1493478-setlinearscale.md)
- [setMaxDB](kernel/ioaudiolevelcontrol/1493467-setmaxdb.md)
- [setMaxValue](kernel/ioaudiolevelcontrol/1493457-setmaxvalue.md)
- [setMinDB](kernel/ioaudiolevelcontrol/1493464-setmindb.md)
- [setMinValue](kernel/ioaudiolevelcontrol/1493474-setminvalue.md)
- [validateValue](kernel/ioaudiolevelcontrol/1493446-validatevalue.md)

### Type Methods

- [create](kernel/ioaudiolevelcontrol/1493476-create.md)
- [createPassThruVolumeControl](kernel/ioaudiolevelcontrol/1493450-createpassthruvolumecontrol.md)
- [createVolumeControl](kernel/ioaudiolevelcontrol/1493470-createvolumecontrol.md)

## Relationships

### Inherits From

- [IOAudioControl](kernel/ioaudiocontrol.md)

## See Also

### Interfaces

- [IOAudioSelectorControl](kernel/ioaudioselectorcontrol.md)
- [IOAudioToggleControl](kernel/ioaudiotogglecontrol.md)
- [IOAudioControl](kernel/ioaudiocontrol.md)
- [IOAudioEngine](kernel/ioaudioengine.md)
- [IOAudioStream](kernel/ioaudiostream.md)
- [IOAudioPort](kernel/ioaudioport.md)