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# kAudioFormatProperty_MatrixMixMap

A matrix of scaling coefficients for converting audio from one channel map to another in a standard way, if one is known. Otherwise, an error is returned. Set the `inSpecifier` parameter to an array of two pointers to `AudioChannelLayout` structures. The first points to the input layout, the second to the output layout. The value is a two dimensional array of `Float32` values, where the first dimension (rows) is the input channel and the second dimension (columns) is the output channel.

```
var kAudioFormatProperty_MatrixMixMap: AudioFormatPropertyID { get }
```

---

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