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Ensure there is a clear line-of-sight between the microphone and speakers, no background noise (TV, air conditioning, construction work, etc.) while doing the measurements, and remember to keep the microphone perfectly still, using a stand or similar. A sweep will be played through each speaker, and a final sweep will be played through the first speaker again.

  1. The first measurement should always be taken in the center of the listening region, in the most used listening position or "sweet spot," as this will align levels and delays between speakers. 

  2. Press the measure button to collect a set of measurements. This will play a sweep in each speaker and one final sweep in the first speaker again. Image Modified

  3. Press the timer to select a delay between 2-15 seconds before the measurement start. This will give you time to get out of the listening area, or to lower your laptop lid if it interferes with line-of-sight. Image Modified

  4. Move the microphone to the next indicated position and press "Measure." Repeat this procedure for all measurement points or until you have spanned the whole seating area. Tip: Hover over a measurement point to get a help text on where the point should be positioned.

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  5. Proceed to the filter design page after all recommended positions have been measured.

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Your project will now be auto-saved saved.

Potential problems and workarounds during measurement: 

Clipping: If the output level is too high during measurement, the signal will clip, and the measurement will be terminated. Return to Volume Calibration to reduce the gain of the corresponding speaker or master volume of the system. 

Low SNR (signal-to-noise ratio): If the level is too low during measurement, it is difficult for the application to discern signal and background noise. Return to Volume Calibration to increase the gain of the corresponding speaker or master volume of the system. See more here: Troubleshooting: Low Signal-to-Noise Ratio (SNR)

Filter Design