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Apple Developer Docs

AVFAudio / AVAudioPCMBuffer / init(PCMFormat:frameCapacity:)

init(PCMFormat:frameCapacity:)

Declaration

init?(PCMFormat format: AVAudioFormat, frameCapacity: AVAudioFrameCount)

Open on developer.apple.com

AVFAudioInitializer

iOS 8.0+iPadOS 8.0+Mac Catalyst 13.1+macOS 10.10+tvOS 9.0+visionOS 1.0+watchOS 2.0+

Built on 2026-06-12 · Snapshot snapshot-20260612-beta.1 (macOS 27.0) · Commit fba13e1 · by @g-cqd · based on Apple Developer Documentation