Trinnov Audio is pleased to announce a significant advancement in our Optimizer calibration software for the Ovation2 cinema processor.
The 4.3.2 software will soon be on all new processors, as well as being backwards compatible for all Ovation2 processors sold since it was first launched at Cinemacon 2019. Our dealers and customers already agree, the Ovation2 is one of the most advanced products in commercial cinema, but in keeping with our philosophy of constant development, we aim to continuously elevate the cinema sound experience.
The new features are detailed below:
ADAPTIVE PRE-EMPHASIS FOR CALIBRATIONS
One of the issues facing accurate audio calibrations is combating the signal-to-noise ratio (technically crest factor) inside a room. This is particularly true regarding low-frequency measurements where often inaudible noise, such as an HVAC unit, projector or even outside traffic noise, can corrupt the calibration.
To correct this potential problem and achieve more robust and reliable measurements, 4.3.2 adds a new feature called Adaptive Pre-emphasis. By measuring the room’s noise floor and making rapid computational adjustments, Adaptive Pre-emphasis rejects the background noise measured during the calibration.
ADAPTIVE LIMITER
The Excursion Curve feature determines the maximum amount of boost and cut the Optimizer is permitted to apply when correcting the amplitude response to match a target curve.
In addition to Adaptive Pre-emphasis, the new software offers an Adaptive Limiter Excursion Curve, which is based on the Adaptive Pre-emphasis computations. The Adaptive Limiter provides an extra level of protection against excessive correction where ambient noise is mistaken for an actual signal. Calibrators will also rejoice knowing that the Excursion Curve is no longer applied on a global basis to all speakers and is now available on a per-speaker basis, enabling finer system tuning when needed.
IMPROVED ACTIVE CROSSOVER CALIBRATION
4.3.2 Improves Active Crossover Calibration by disabling low pass filters during measurement. By doing so, impulse peak detection is easier and more accurate, especially for low-frequency drivers with a low crossover frequency. The result is improved dialogue clarity and precision.
ENHANCED SUBWOOFER ALIGNMENT
One of the more significant refinements in this software revision is improved Bass Management Delay Alignment. We have significantly improved the way our bass management time aligns each subwoofer, taking into account the exact characteristics of the selected bass management filters. This setting uses a computational algorithm that takes just a few moments to calculate.
REDUCED PRE-RINGING
A somewhat controversial topic in the audio calibration world is pre-ringing when FIR filters are used for correction. Whether pre-ringing is an audible phenomenon or not, it is an issue some wish to address. Since Trinnov’s core expertise and focus is on advanced signal processing applied to digital acoustics, 4.3.2 offers an advanced setting that enables Pre-ringing reduction. This enables advanced calibrators to use the Optimizer’s FIR length and reference settings to fine tune filter resolution and phase correction without audible artifacts.
For questions regarding the new software, or to be a beta tester, please contact:
Michael Babb - Cinema Technical & Sales Manager Worldwide
Alexandre Garcia - Technical Sales Manager for Cinema, Pro and High End for France