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# read(into:frameCount:)

Reads a portion of an audio buffer using the number of frames you specify.

```
func read(into buffer: AVAudioPCMBuffer, frameCount frames: AVAudioFrameCount) throws
```

## Parameters

`buffer`

The buffer from which to read the file. Its format must match the file’s processing format.

`frames`

The number of frames to read.

## Discussion

You use this method to read fewer frames than the buffer’s `frameCapacity`.

---

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