FEATURE: HOUSES OF WORSHIP “A milestone over the past
few years has been the development of steerable speaker systems and the clarity of sound that they bring to HoW,” remarks Andy Bradshaw, who handles sales for south England at TOA – whose SR-H line array series speakers have proven particularly popular for HoW projects – and fellow TOA group company, microphone
‘User-friendly,
technologically advanced
wireless systems are the new norm in the HoW market’
Thomas Giczy, AKG
maker Trantec. “It has helped to solve the common problem of having awkward speaker placements.” Peter H Child, applications engineer at Martin Audio, points to the effort made by “a number of loudspeaker manufacturers” in addressing the intelligibility issue. By way of example, Child cites Martin Audio’s own OmniLine micro line array, whose proprietary software allows users “to focus the sound coverage on to the audience and avoid surfaces that could cause reflections and thereby reduce the intelligibility of the system. The software provides the inter-cabinet and array angles required to achieve optimum coverage over a predefined area without the need for costly electronics.”
In conjunction with more
versatile systems, powerful digital signal processing has also made a difference. “DSP- based sound management systems are helping to ensure systems perform better and are simpler to control,” says Antonio Ferrari, marketing manager, audio contractor at Italy-based pro- audio company RCF.
RCF DELIVERS CONSISTENT COVERAGE FOR SAN GIUSEPPE CHURCH
Delivering excellent speech clarity, consistent coverage and minimal aesthetic impact were the chief priorities underlying a recent installation of RCF audio equipment at the new San Giuseppe Church in Cassina Rizzardi, a small town situated near the city of Como, Italy. The church’s demanding acoustics led the RCF team to propose a design based around VSA (Vertical Steerable Array) technology,
with two multi-amplified VSA2050 arrays specified for the main 25m nave.
The signal sent to each of the 20 neodymium full-range transducers featured inside the VSA2050s is processed by internal DSP for controlling the array’s vertical dispersion. Consequently, the audio signal can be addressed exactly to the listening area rather than sending energy to the ceiling and empty floors that would result in unwanted reflections,
affecting speech and intelligibility.
Installed beside the altar in San Giuseppe Church, the pair of VSA2050s are intended to maximise speech clarity without intruding on the visual aesthetic of the HoW. In addition, four passive high- directivity MQ100L columns, driven by RCF amplifiers, enhance coverage on the rear raised choir and small side areas shadowed by wall segments.
www.installation-international.com
March 2014 25
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