---
title: Using voice processing
framework: avfaudio
role: sampleCode
role_heading: Sample Code
path: sample-code/avfaudio/using-voice-processing
---

# Using voice processing

Add voice-processing capabilities to your app by using audio engine.

## Overview

Overview note: This sample code project is associated with WWDC 2019 session 510: What’s New in AVAudioEngine. Configure the Sample Code Project Before you run the sample code project in Xcode, ensure you’re using iOS 17 or later.

## See Also

### Playback

- [Building an audio sequencer to arrange and play clips](avfaudio/building-an-audio-sequencer-to-arrange-and-play-clips.md)
- [Playing custom audio with your own player](avfaudio/playing-custom-audio-with-your-own-player.md)
- [AVAudioPlayerNode](avfaudio/avaudioplayernode.md)