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  1. The "Master output" level must be set to a low volume to avoid damage to your ears or speakers. If it is not already set to a low volume, drag the indicator to the lower part of the slider.
  2. Set the Mic gain to the bottom of the red section, which represents +0dB digital gain.
  3. Press the play button Image Modified beneath the speaker located furthest to the left. The speaker should now play a stimulus in the form of a pink noise or, if the speaker is a subwoofer, short sine sweeps. If you cannot hear the stimulus, slowly raise the "Master output" level until you hear it.
  4. Repeat this procedure for all speakers. If there is no noise playing from one or more speakers, make sure that your device is configured to the correct speaker configuration and that your speakers are connected to the device. Ensure that the device's firmware is also properly recognizing each speaker.
  5. Adjust the Master Output to a normal or slightly louder-than-normal listening level for Measurement and then proceed.

If you receive a Signal-to-Noise Ratio error during Measurement, you will need to increase Master Output or decrease Mic Gain at the Volume Calibration stage.
If you receive a Clipping error during Measurement, you will need to decrease Master Output at the Volume Calibration stage.

Remember that volume of the stimulus should never hurt your ears. There is a lock on the Master output slider for safety reasons. However, if you need to raise the volume into the red zone and are positive that your system can handle it, press the red lock that appears above the slider. You should now be able to drag the slider into the red area.

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