---
title: timedMetadataSampleBufferFormatDescription
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcapturespatialaudiometadatasamplegenerator/timedmetadatasamplebufferformatdescription
---

# timedMetadataSampleBufferFormatDescription

Returns the format description of the sample buffer returned from the newTimedMetadataSampleBufferAndResetAnalyzer() method.

## Declaration

```swift
var timedMetadataSampleBufferFormatDescription: CMFormatDescription { get }
```

## Discussion

Discussion Use this format description when creating your AVAssetWriter track for spatial audio timed metadata.

## See Also

### Analyzing audio samples

- [analyzeAudioSample(_:)](avfoundation/avcapturespatialaudiometadatasamplegenerator/analyzeaudiosample(_:).md)
- [newTimedMetadataSampleBufferAndResetAnalyzer()](avfoundation/avcapturespatialaudiometadatasamplegenerator/newtimedmetadatasamplebufferandresetanalyzer().md)
- [resetAnalyzer()](avfoundation/avcapturespatialaudiometadatasamplegenerator/resetanalyzer().md)