d&b audiotechnik has announced HeadroomCalc, software that ‘predicts the reaction of a d&b system to a specific audio signal, providing a more precise sound pressure level and headroom calculation than any other solution currently available’.

d&b audiotechnik HeadroomCalcThe latest update to d&b´s ArrayCalc simulation software (v11), HeadroomCalc, is a patent pending and advanced time-domain calculation model.

‘HeadroomCalc uses audio files provided by the user, representing the real world application, instead of generic, steady-state spectra,’ says Kilian Köhler, the manufacturer’s Technical Lead R&D for Scientific Computing. ‘This allows users to accurately account for specific signal response as well as DSP limiter-based nonlinear processing impacts. As a result, users benefit from more realistic simulation results, enabling them to create a system design that meets specification requirements at a new level.’

‘It is d&b’s mission to provide superior and more comprehensive predictability of system performance. HeadroomCalc represents significant progress in predicting accurate system performance that will impact the planning and execution of future audio projects’, adds Florian Hahn, Product Manager, Software. ‘We want to share this progress with integrators and consultants around the world to help them make their designs even more predictive and reliable, especially when it comes to planning fixed installations.’

HeadroomCalc predicts the reaction of a d&b system to specific audio signals, providing a more precise SPL calculation by processing any user-defined audio file through a simulation of the configured audio system in the following three separate steps.

The input signal – often a prerecorded alarm message or a recording of the band – is fed into the simulated loudspeaker processing of the selected d&b system amplifiers in the time domain. The intermediate results are output voltage and gain reduction signals for every amplifier channel within the system over time. The output voltages are then combined with the simulated impulse responses of the connected loudspeakers. This yields the sound pressure signals for every loudspeaker at up to five individual definable receiver points. Finally, the total sound pressure signal is created for all receiver points, which is the sum of all sound pressure signals at each point. This is then used to derive the SPL metrics in the same manner a portable SPL meter would operate at each defined measurement point.

More: www.dbaudio.com

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