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# SHSignatureGenerator

An object for converting audio data into a signature.

```
class SHSignatureGenerator
```

## Overview

Create both reference and query signatures using this class.

## Topics

### Generating a signature from audio

[`-  appendBuffer:atTime:error:`](/documentation/ShazamKit/SHSignatureGenerator/append(_:at:))

Adds audio to the generator.

[`-  signature`](/documentation/ShazamKit/SHSignatureGenerator/signature())

Converts the audio buffer into a signature.

[Generating a signature from an audio buffer](/documentation/ShazamKit/generating-a-signature-from-an-audio-buffer)

Create a signature from an audio file or the microphone for a reference track in a custom catalog, or for matching tracks in a catalog.

### Generate a signature from assets

[`+  generateSignatureFromAsset:completionHandler:`](/documentation/ShazamKit/SHSignatureGenerator/generateSignature(from:completionHandler:))

Creates a signature with the asset you specify.

## Relationships

### Conforms To

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`CVarArg`](/documentation/Swift/CVarArg)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`Hashable`](/documentation/Swift/Hashable)

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

[`Equatable`](/documentation/Swift/Equatable)

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

---

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