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# Sample rate conversion settings

The constants that define sample rate converter audio quality settings.

## Topics

### Sample rate conversion keys

[`let AVSampleRateConverterAudioQualityKey: String`](/documentation/AVFAudio/AVSampleRateConverterAudioQualityKey)

An integer value that represents the audio quality for conversion.

[`let AVEncoderAudioQualityForVBRKey: String`](/documentation/AVFAudio/AVEncoderAudioQualityForVBRKey)

[`let AVSampleRateConverterAlgorithmKey: String`](/documentation/AVFAudio/AVSampleRateConverterAlgorithmKey)

A string value that represents the sample rate converter algorithm to use.


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