---
title: AVMutableAudioMixInputParameters
framework: avfoundation
role: symbol
role_heading: Class
path: avfoundation/avmutableaudiomixinputparameters
---

# AVMutableAudioMixInputParameters

The parameters you use when adding an audio track to a mix.

## Declaration

```swift
class AVMutableAudioMixInputParameters
```

## Topics

### Creating input parameters

- [init(track:)](avfoundation/avmutableaudiomixinputparameters/init(track:).md)

### Managing the track ID

- [trackID](avfoundation/avmutableaudiomixinputparameters/trackid.md)

### Setting the volume

- [setVolume(_:at:)](avfoundation/avmutableaudiomixinputparameters/setvolume(_:at:).md)
- [setVolumeRamp(fromStartVolume:toEndVolume:timeRange:)](avfoundation/avmutableaudiomixinputparameters/setvolumeramp(fromstartvolume:toendvolume:timerange:).md)

### Getting an audio tap

- [audioTapProcessor](avfoundation/avmutableaudiomixinputparameters/audiotapprocessor.md)

### Time pitch settings

- [audioTimePitchAlgorithm](avfoundation/avmutableaudiomixinputparameters/audiotimepitchalgorithm.md)
- [AVAudioTimePitchAlgorithm](avfoundation/avaudiotimepitchalgorithm.md)

## Relationships

### Inherits From

- [AVAudioMixInputParameters](avfoundation/avaudiomixinputparameters.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCopying](foundation/nscopying.md)
- [NSMutableCopying](foundation/nsmutablecopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Mixing

- [AVAudioMix](avfoundation/avaudiomix.md)
- [AVAudioMixInputParameters](avfoundation/avaudiomixinputparameters.md)
- [AVAudioMixInputParametersTrackID](avfoundation/avaudiomixinputparameterstrackid.md)
- [AVMutableAudioMix](avfoundation/avmutableaudiomix.md)