# Sandbox.Audio.MultiChannelBuffer.CopyFromUpmix

```csharp
void CopyFromUpmix(MultiChannelBuffer other)
```

Copies from one buffer to the other. If the other has less channels, we'll upmix

### Parameters

- `other` (`MultiChannelBuffer`)

Declared in [Sandbox.Audio.MultiChannelBuffer](/api/Sandbox.Audio.MultiChannelBuffer).
Assembly: `Sandbox.Engine`.