---
title: MLSoundClassifier.ModelParameters.FeatureExtractorType
framework: createml
role: symbol
role_heading: Enumeration
path: createml/mlsoundclassifier/modelparameters-swift.struct/featureextractortype
---

# MLSoundClassifier.ModelParameters.FeatureExtractorType

The feature-extractor options for a sound-classifier training algorithm.

## Declaration

```swift
enum FeatureExtractorType
```

## Overview

Overview Use the MLSoundClassifier.ModelParameters.FeatureExtractorType.audioFeaturePrint(type:revision:) feature extractor to create a model with the following advantages over vggish: More accurate predictions Lower latency Smaller model file size Less training time Use MLSoundClassifier.ModelParameters.FeatureExtractorType.vggish(revision:) to support older OS versions.

## Topics

### Designating a feature extractor

- [MLSoundClassifier.ModelParameters.FeatureExtractorType.audioFeaturePrint(type:revision:)](createml/mlsoundclassifier/modelparameters-swift.struct/featureextractortype/audiofeatureprint(type:revision:).md)
- [MLSoundClassifier.ModelParameters.FeaturePrintType](createml/mlsoundclassifier/modelparameters-swift.struct/featureprinttype.md)
- [MLSoundClassifier.ModelParameters.FeatureExtractorType.vggish(revision:)](createml/mlsoundclassifier/modelparameters-swift.struct/featureextractortype/vggish(revision:).md)

### Describing a feature extractor

- [description](createml/mlsoundclassifier/modelparameters-swift.struct/featureextractortype/description.md)

## Relationships

### Conforms To

- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Supporting types

- [MLSoundClassifier.ModelParameters.ValidationData](createml/mlsoundclassifier/modelparameters-swift.struct/validationdata.md)
- [MLSoundClassifier.ModelParameters.ModelAlgorithmType](createml/mlsoundclassifier/modelparameters-swift.struct/modelalgorithmtype.md)
- [MLSoundClassifier.ModelParameters.ClassifierType](createml/mlsoundclassifier/modelparameters-swift.struct/classifiertype.md)
- [MLSoundClassifier.ModelParameters.FeaturePrintType](createml/mlsoundclassifier/modelparameters-swift.struct/featureprinttype.md)