---
title: AVAudio3DMixingSourceMode.bypass
framework: avfaudio
role: symbol
role_heading: Case
path: avfaudio/avaudio3dmixingsourcemode/bypass
---

# AVAudio3DMixingSourceMode.bypass

A mode that does no spatial rendering.

## Declaration

```swift
case bypass
```

## Discussion

Discussion If input and output audio channel layouts are equivalent, the framework copies all input channels directly to corresponding output channels. If the input and output audio channel layouts differ, the framework mixes according to the kAudioFormatProperty_MatrixMixMap property of the layouts. It applies no occlusion, obstruction, or reverb in this mode.

## See Also

### Source Modes

- [AVAudio3DMixingSourceMode.spatializeIfMono](avfaudio/avaudio3dmixingsourcemode/spatializeifmono.md)
- [AVAudio3DMixingSourceMode.pointSource](avfaudio/avaudio3dmixingsourcemode/pointsource.md)
- [AVAudio3DMixingSourceMode.ambienceBed](avfaudio/avaudio3dmixingsourcemode/ambiencebed.md)