Trinnov Audio Altitude16, User Manual

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Altitude
16
86
Figure 81: frequency response (power and direct)
The recombined amplitude response of the speaker: You can see whether the combination of the drivers is constructive and
you can observe the effects of level/delay/polarity modification on the combined amplitude of the speaker. Two curves are
displayed : one showing the total acoustic output of the speaker (including the room), the other showing the amplitude of
the direct front and early reflections. Comparing both curves will indicate whether the crossover preserves the directivity
of the speaker: The two curves will look more alike when the acoustic summation is optimized for the primary listening
position.
NOTE:
• The levels, delays and polarities set previously are ignored during the calibration. In other words, adjusting these
parameters before launching the calibration will have no effect on the result.
• Under some circumstances, the automatic crossover algorithm may suggest inverted polarities for a driver from
one speaker to another. This can be explained by various factors:
- The physical polarity of one speaker is, indeed, inverted (from a cabling issue, as an example). In this case, the
correction suggested by the Optimizer should be applied to improve audio quality
- Two adjacent drivers (for instance Mid and High) are phase-shifted by an amount of about 90°. In this case, the
Optimizer provides more uncertain results as it gets harder to see whether the drivers are in or out of phase. If you
are not comfortable with the results provided by the Optimizer, you can correct them manually afterwards (via the
button “Invert polarity”).
Click on Next. The Wizard will show you the multi-way speaker and their status. You can select the speakers that are not
calibrated and click on Calibrate to calibrate them.
6.7.4 _NO CALIBRATION
You can also choose to pass the crossover calibration by clicking on No Calibration.