# floatChannelData The buffer’s audio samples as floating point values. ``` var floatChannelData: UnsafePointer>? { get } ``` ## Discussion The `floatChannelData` property returns pointers to the buffer’s audio samples if the buffer’s format is 32-bit float. It returns `nil` if it’s another format. The returned pointer is to `format.channelCount` pointers to float. Each of these pointers is to [`frameLength`](/documentation/AVFAudio/AVAudioPCMBuffer/frameLength) valid samples, which the class spaces by [`stride`](/documentation/AVFAudio/AVAudioPCMBuffer/stride) samples. If the format isn’t interleaved, as with the standard deinterleaved float format, the pointers point to separate chunks of memory, and the [`stride`](/documentation/AVFAudio/AVAudioPCMBuffer/stride) property value is `1`. When the format is in an interleaved state, the pointers refer to the same buffer of interleaved samples, each offset by `1` frame, and the [`stride`](/documentation/AVFAudio/AVAudioPCMBuffer/stride) property value is the number of interleaved channels. --- 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)