# AVCaptureSpatialAudioMetadataSampleGenerator An interface for generating a spatial audio timed metadata sample. ``` class AVCaptureSpatialAudioMetadataSampleGenerator ``` ## Topics ### Analyzing audio samples [`func analyzeAudioSample(CMSampleBuffer) -> OSStatus`](/documentation/AVFoundation/AVCaptureSpatialAudioMetadataSampleGenerator/analyzeAudioSample(_:)) Analyzes the provided audio sample buffer for its contribution to the spatial audio timed metadata value. [`func newTimedMetadataSampleBufferAndResetAnalyzer() -> Unmanaged?`](/documentation/AVFoundation/AVCaptureSpatialAudioMetadataSampleGenerator/newTimedMetadataSampleBufferAndResetAnalyzer()) Creates a sample buffer containing a spatial audio timed metadata sample computed from all analyzed audio buffers, and resets the analyzer to its initial state. [`var timedMetadataSampleBufferFormatDescription: CMFormatDescription`](/documentation/AVFoundation/AVCaptureSpatialAudioMetadataSampleGenerator/timedMetadataSampleBufferFormatDescription) Returns the format description of the sample buffer returned from the [`newTimedMetadataSampleBufferAndResetAnalyzer()`](/documentation/AVFoundation/AVCaptureSpatialAudioMetadataSampleGenerator/newTimedMetadataSampleBufferAndResetAnalyzer()) method. [`func resetAnalyzer()`](/documentation/AVFoundation/AVCaptureSpatialAudioMetadataSampleGenerator/resetAnalyzer()) Calling this method resets the analyzer to its initial state so that a new run of audio sample buffers can be analyzed. ## Relationships ### Conforms To [`Hashable`](/documentation/Swift/Hashable) [`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible) [`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol) [`CVarArg`](/documentation/Swift/CVarArg) [`Equatable`](/documentation/Swift/Equatable) [`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible) ### Inherits From [`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class) --- 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)