In the days of the ancient Romans, crowds would gather by the thousands in the amphitheater to see a wide range of events: public ceremonies honoring brave soldiers, performances of dramatic presentations, or the gruesome games of the gladiators. Although the events were a visual extravaganza, the amphitheater and coliseum were also designed acoustically to allow the entire audience to hear. Fast forward two thousand years, and we still gather in large groups to see college graduations, rock concerts, sporting events, and more. Two of the primary senses that are titillating to the large masses still remain the same: visual and aural stimulation.

The modern design of arenas and amphitheaters must be done very carefully, or large groups of people will miss out on the full experience. We regularly design large video screens to provide image magnification (IMAG) of the action on the floor, and we design concert ready audio systems to amplify the sound on the stage. But the acoustical design of the facility goes even further beyond these details.

The overall reverberation time of the space must be designed so that it is not too lively (or the speech intelligibility of the audio system will be incomprehensible) or too dead (or the shouts and screams of the audience will be barely audible). Also, just like the walls of the ancient amphitheater were built up to block out sounds from the adjacent streets and city markets, the roar of the mechanical systems with large airflows must be blocked to minimize disturbances to the paying public.

At Acoustics By Design, we take a comprehensive look at the acoustical and audio-visual design of large arenas, such as our work at the Calvin College Spoelhof Fieldhouse Complex, and we work hard to balance the room acoustics and the background noise levels from the mechanical system to create a sonically pleasing environment that optimizes public gatherings for ceremonies, performances, and extravagant spectacles.

ABD Engineering and Design

ABD Engineering and Design is one of North America’s leading independent acoustical consulting and AV design firms, serving clients across the United States and Canada, as well as other international markets from offices in Grand Rapids, MI and Portland, OR. Our specialized acoustical engineering and AV design practices help architects, building owners, engineers, facility directors, and municipalities design spaces, environments, and systems for optimal acoustical and audiovisual performance. Our consulting practice areas specialize in all aspects of architectural acoustics, environmental and industrial noise and vibration control, and audiovisual systems design.

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