---
title: Audio mixing
framework: AVFoundation
role: collectionGroup
role_heading: API Collection
path: avfoundation/audio-mixing
---

# Audio mixing

Define how to mix the audio levels from multiple audio tracks over an asset’s duration.

## Topics

### Mixing

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

## See Also

### Editing

- [Composite assets](avfoundation/composite-assets.md)
- [QuickTime movies](avfoundation/quicktime-movies.md)
- [Video effects](avfoundation/video-effects.md)