Trinnov Audio has announced significant advancements in its 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.
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.
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.
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.
Also, 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.
This software revision also offers improved Bass Management Delay Alignment. The company says it has significantly improved the way the 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.
Trinnov Audio www.trinnov.com