<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macCatalyst: -",
    "macOS: -",
    "tvOS: -",
    "visionOS: -",
    "watchOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "CoreAudio",
  "identifier" : "/documentation/CoreAudio/UnsafeMutableAudioBufferListPointer/subscript(_:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Subscript",
  "symbol" : {
    "kind" : "Instance Subscript",
    "modules" : [
      "Core Audio",
      "CoreAudio"
    ],
    "preciseIdentifier" : "s:9CoreAudio013UnsafeMutableB17BufferListPointerVySo0bE0VSicip"
  },
  "title" : "subscript(_:)"
}
-->

# subscript(_:)

Access an indexed `AudioBuffer` (`mBuffers[i]`).

```
subscript(index: UnsafeMutableAudioBufferListPointer.Index) -> UnsafeMutableAudioBufferListPointer.Element { get nonmutating set }
```

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)