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# setCalibrationMode(calibrationMode:level:)

Selects a loudness correction strategy and reference level.

```
func setCalibrationMode(calibrationMode: PHASECalibrationMode, level: Double)
```

## Parameters

`calibrationMode`

A given strategy for sound pressure level. For a consistent user experience across platforms and output devices, choose [`PHASECalibrationMode.absoluteSpl`](/documentation/PHASE/PHASECalibrationMode/absoluteSpl) or [`PHASECalibrationMode.relativeSpl`](/documentation/PHASE/PHASECalibrationMode/relativeSpl).

`level`

The loudness. The calibration mode determines this value’s unit and range.

## Discussion

---

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