Run Optimizer Calibration

Summary

• Before you begin
• Prepare your room
• Understanding the calibration page
• Run the calibration
  • Understanding the measurement sequence
  • Start calibration
• Verify your results
• Save your preset
  
  
  

 

Before you begin

Calibration requires proper setup. Ensure you've completed these steps first by reading those articles:

• Place the Microphone - Position at the Reference Seating Position (RSP)

• Connect the Microphone - Verify proper connection and power

• Set Calibration Levels - Ensure a robust and smooth measurement 

• Active Crossover Calibration - If you are using active crossovers

 

 

Prepare your room

For accurate measurements, optimize your room conditions:

Room setup

• Clear the path between speakers and microphone - Remove any obstacles
• Silence the room - Turn off air conditioning, close windows and doors

During calibration

• Stay still - Movement can affect speaker localization during the first measurement
• Avoid interruptions - Don't press buttons or change settings while calibration is running
  
  

 

Understanding the calibration page

The calibration interface has two main sections:

Left panel - Measurement status

• Shows calibration progress
• Displays which measurements are complete
• Offers a countdown timer (5s, 10s, 30s) to leave the room before test signals play

Right panel - Reference point display & Settings

Visualizes speaker placement from two perspectives:

• Top view - Overhead map showing speaker positions relative to the microphone
• Elevation - Side view confirming left and right speakers are level
• Details - Numerical data for every speaker’s reference measurement:
  • Positions shows 3D localization
  • Levels
  • Delays
  • Bandwidth

For more information, please refer to Calibration Troubleshooting.

 

 

Run the calibration

Understanding the Measurement Sequence

For each speaker and subwoofer, the acoustic measurement process begins with a noise floor measurement. This allows the Optimizer to capture the sound signature of the background noise in the room. The system then adjusts the test signals accordingly, boosting or pre-emphasizing frequency ranges where noise might otherwise mask the useful signal.

The measurement sequence itself involves three Maximum Length Sequence (MLS) bursts:

• The first two bursts verify that the measurements meet the minimum quality requirements and are consistent.
• The third burst is the actual measurement used by the processor to compute the calibration filters.

 

Start calibration

1. Click Calibrate to begin
2. Noise floor measurement - Brief silence as the system measures room noise
3. Test signals play - You'll hear impulses from each speaker in sequence
   • Expect 3 impulses per speaker
   • If more than 3 play, see troubleshooting.
4. Move to next position (if taking multiple measurements)
   • After the RSP measurement, positioning can be less precise
   • Keep microphone upright and at similar height
   • See Taking Multiple Measurements for guidelines
5. Click Compute when all measurements are complete

 

Verify your results

After computation completes, review the Positions tab:

• Check speaker symmetry - Left and right speakers should be closely matched
• Verify distances - Confirm they match your physical setup
• Review elevation - Speakers should be at appropriate heights

If results look correct, proceed to save. 

 

Save your preset

The Setup Wizard saves your calibration automatically. However:

• Manual saves required for any later changes to the preset
• Unsaved edits will be lost if you switch presets or power off

See Managing Presets for details on saving and organizing your configurations.

 

 

Next steps

After successful calibration:

1. Enable Bass Management - Optimize low-frequency distribution
2. Enable WaveForming - Advanced room correction (if available)
3. Set Up Target Curves - Customize your sound preference
4. Backup Your Processor - Protect your calibration data