VMB releases Rainbow prediction software
Thursday, 6 August 2009
VMB releases Rainbow prediction software
Spain - VMB has announced the availability of Rainbow, its electro-acoustical prediction software for the company's speaker systems, boasting horizontal as well as vertical modelling.

Windows-based, Rainbow allows simulation of complete systems, such as a main large format array complemented by a smaller delayed array and front-fills. Thus, its library of loudspeaker systems includes, not only the company's self-powered line array modules with built-in inclinometer (LX-V8 and LX-F6 with accordion-folded ribbon HF driver), but also models from its PHASE or ADP lines.

Jesús Fuentes, national sales director, comments: "Customers need to model a complete system. Generic software is OK if only a single array is used. In practice, however, fill systems are usually required. One must also examine what's happening in the horizontal plane, not just vertically. So the only way to provide a complete solution was to develop our own software."

High resolution (24 point per octave) speaker polar data with magnitude and phase information allow accurate modelling down to 30 Hz, enabling user-designed subwoofer arrays. Rear radiation levels are critical for cardioid system design, so subwoofer cabinets use real measurements across all frequencies.

Joel Damiano, applications manager notes: "Venue-specific, subwoofer array design is key to achieving uniform bass coverage. System engineers will appreciate being able to predict cardioid, end-fired and other arrangements, such as physically or electronically steered or arced bass arrays."

Rainbow can also import external WMF format drawing files, allowing architectural details, or rigging structures, to be added to any project. Additionally, coverage maps can be exported, and a global report can be printed with comprehensive information (dimensions, angles, weight, centre of gravity) that will be useful for the installer. Other convenient functions include quick readout of SPL, distance to the loudspeakers and distance, angle or delay time between two points.

After extensive beta testing carried out with the help of VMB users, Rainbow software is available for immediate download at VMB's web site (http://www.vmb.es/).

(Jim Evans)

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