---
title: "predictions(from:overlapFactor:predictionTimeWindowSize:)"
framework: createml
role: symbol
role_heading: Instance Method
path: "createml/mlsoundclassifier/predictions(from:overlapfactor:predictiontimewindowsize:)"
---

# predictions(from:overlapFactor:predictionTimeWindowSize:)

Generates predictions that use an overlap factor and time window size for an array of audio files.

## Declaration

```swift
func predictions(from audioFiles: [URL], overlapFactor: Double, predictionTimeWindowSize: TimeInterval) throws -> [String]
```

## Parameters

- `audioFiles`: An array of audio-file URLs you want the sound classifier to categorize.
- `overlapFactor`: The amount of overlap between successive analysis windows when the model analyzes a block of audio data.
- `predictionTimeWindowSize`: The duration of the audio buffer the method sends to the model for each prediction.

## Return Value

Return Value An array of prediction labels for the audio files.

## See Also

### Testing a sound classifier

- [predictions(from:)](createml/mlsoundclassifier/predictions(from:).md)