Trinnov Audio ALTITUDE 16, User Manual

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Altitude
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_ USER MANUAL
!
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:
o 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
o 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”).
9.4.5.2 _LISTEN TO EACH SPEAKER CONNECTED TO THE CROSSOVER
Listen carefully to each speaker connected to the crossover. You can play pink noise from the Altitude
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and/or play your favorite music/cinema samples.
9.4.6 _SAVE THE PRESET
Last but not least, don’t forget to save the preset to avoid losing the crossover settings.
9.5 _CALIBRATE THE SPEAKERS IN THE ROOM
!
IMPORTANT NOTE: In order to perform a proper calibration it is important to carefully read the entire chapters about the
Essential Tools and Settings and Getting Ready for Calibration to learn about the Altitude
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audio clock settings, audio
utilities (metering tools, pink noise and solo/mute buttons) and microphone placement recommendations.
9.5.1 _OVERVIEW OF THE CALIBRATION PROCEDURE
If your speakers have been specified correctly, the calibration process is a relatively straightforward pro-
cess:
1. Adjust the master output level to achieve good quality measurements;
2. Start the automated calibration: The Altitude
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will measure the acoustical response of each loudspeaker in the
room;
3. Compute the optimization filters.
4. Save one or more presets with your preferred optimization settings.
9.5.2 _ADJUST THE MASTER OUTPUT LEVEL
To access the calibration page from the Altitude
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Main page:
Click on the Setting button in the top menu to open the Advanced Settings user interface.
Go to the Optimizer Settings/Calibration page.
The Optimizer requires a minimum Sound Pressure Level for proper calibration. Until that minimum SPL is
reached, the test signal will keep playing through the same speaker. For safety matters, we recommend to perform
that first calibration as if it were a test.
Set a safe output level:
1. Decrease Master Level to -40 dB;
2. Press the Mute button to cut the outputs (this step must ALWAYS be performed before pressing on the Calibrate
button);
3. Press the Calibrate button in the Calibration tab in the Optimizer Settings page of the Advanced Settings in-
terface;
4. Follow the on-screen instructions regarding the microphone: take off the cover and switch it on.