Trinnov Audio Altitude16, User Manual

Page: 90 / 156

Altitude
16
90
The calibration status has 3 possible values:
• Complete : If no problem occurred during the measurement. After calibration, the system is calibrated but not ready to to
use, which means no sound can go through the processor until the optimization filters are computed.
• Partial : If the calibration was stopped in the middle of the measurement process.
• None : When no measurement has been performed.
Figure 85: Multi-point measurement after calibration
Once the status of all calibration indicates complete, you can click on Next.
6.8.3 _COMMON PROBLEMS DURING CALIBRATION
If the calibration tool plays more than 3 MLS bursts for a speaker, it means that it’s finding
it difficult to perform a reliable measurement of that speaker.
The most common warning messages are explained below:
“Crest factor too low for capsules”:
• Check the Input Meters in the Processor/Meters page.
• If the Input level is null on at least one of the 4 channels, go back to the Optimizer Settings/Calibration page and stop the
calibration.
• Check that the selected analog physical input is selected in the Home/Select page.
• Make sure the microphone routing is correct.
• The microphone battery may be low. The red led at the front of the microphone indicates the battery level.
• The microphone or cable could also be damaged.
“Unstable position for speaker”:
• Someone may have moved during the calibration.
• Too many strong reflections around the microphone environment disturb the impulse response measurement.
• An obstacle between the microphone and any of the speakers can disturb the measurement.
• The bandwidth of one of the speakers may be too narrow.
“Unable to localize speaker”:
• Dipole/bipole speakers provide more than one wave at the same time, which can cause issues.
• Several speakers chained providing more than one wave at the same time.