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# AudioComponentDescription

Identifying information for an audio component.

```
struct AudioComponentDescription
```

## Topics

### Properties

[`componentType`](/documentation/AudioToolbox/AudioComponentDescription/componentType)

A unique 4-byte code identifying the interface for the component.

[`componentSubType`](/documentation/AudioToolbox/AudioComponentDescription/componentSubType)

A 4-byte code that you can use to indicate the purpose of a component. For example, you could use `lpas` or `lowp` as a mnemonic indication that an audio unit is a low-pass filter.

[`componentManufacturer`](/documentation/AudioToolbox/AudioComponentDescription/componentManufacturer)

The unique vendor identifier, registered with Apple, for the audio component.

[`componentFlags`](/documentation/AudioToolbox/AudioComponentDescription/componentFlags)

Set this value to zero.

[`componentFlagsMask`](/documentation/AudioToolbox/AudioComponentDescription/componentFlagsMask)

Set this value to zero.


---

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