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# kAudioFilePropertySourceBitDepth

For compressed data, this property’s value is the bit depth of the source, uncompressed audio stream as an `SInt32` value, if known. The bit depth is expressed as a negative number if the uncompressed source was in a floating point format. For example, a property value of `-32` is used for `float` and a property value of `-64` represents `double`.

```
var kAudioFilePropertySourceBitDepth: AudioFilePropertyID { get }
```

---

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