Trinnov Audio ALTITUDE 16, User Manual

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7.2 _MAIN OPTIMIZATION SETTINGS
The Optimizer Main Settings are located in the Optimizer Settings/Settings/Main Settings page.
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NOTE: Changes made in the Optimizer Settings do not require new acoustic measurements. The new compensation filters
are recomputed on the fly using the Apply changes button.
Figure 115: Main optimization settings
• Optimize (Optimization Modes): The Altitude32 offers four different optimization modes with very specific
behavior:
• Amp Phase (default): With this setting, the Optimizer will improve both the loudspeaker amplitude
and the phase response of the loudspeaker. This greatly reduces the group delay of the speakers starting from
about 150Hz.
• Amplitude only: This mode tells the Optimizer to work only on the amplitude of the loudspeaker’s response.
The phase behavior is not modified;
• Low range only: With this setting the automatic equalization will only use IIR filters up to the frequency de-
fined in the advanced settings (Default: 150Hz). The automatic FIR filter is disabled, but manual FIR EQ can still
be applied;
• According to L&R speakers: This is a special mode that will optimize the other speakers in order to achieve the
same response as the averaged Left+Right speakers. The different options available for this mode are explained
in the Advanced Optimization Settings subchapter.
• Maximum Boost/Attenuation:
• Maximum boost: defines, in dB, the maximum amount of boost that will be performed by the algorithms. This
parameter is used to avoid distortion. Its default value is 6dB. This parameter has an important impact on the
behavior of the automatic equalization, and is applied to both the time-based and the amplitude-based approach.
See also the Limiter Curve functionality described below.
• Acoustic parameters “Quantity of Early Reflections” and “Resolution of Energy Response”:
The Altitude32 uses two different approaches for the Optimization of Loudspeaker/Room Acoustics:
1. A time-based approach for the correction of Early Reflections (ER). The main parameter that defines the be-
havior of this algorithm is the width of the time-frequency window “Quantity of Early Reflections”.
Quantity of Early Reflections (default is 3 cycles): A simple parameter that characterizes the quantity of early
reflections that the Optimizer tries to compensate is the width of the time-frequency window. The size of this
window is defined by a number of cycles, hence the naming “↓/f”, where ↓ (alpha) is the number of cycles and f
the frequency (1/f being one cycle).
The meaning of the time-frequency window is as follows: for each frequency a different duration (or width of