# AVAudioPCMBuffer.MutableChannelData Represents mutable channel data. ``` enum MutableChannelData ``` ## Overview For **deinterleaved** formats: - The span contains only the requested channel’s samples in contiguous memory For **interleaved** formats: - The span contains the entire interleaved buffer starting at the channel’s first sample ## Topics ### Getting typed mutable channel data [`case float(MutableSpan)`](/documentation/AVFAudio/AVAudioPCMBuffer/MutableChannelData/float(_:)) [`case int16(MutableSpan)`](/documentation/AVFAudio/AVAudioPCMBuffer/MutableChannelData/int16(_:)) [`case int32(MutableSpan)`](/documentation/AVFAudio/AVAudioPCMBuffer/MutableChannelData/int32(_:)) --- Copyright © 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)