Nottingham Trent University

Sound reinforcement, signal processing and lecture capture whilst staying true to the character and aesthetic of a Grade II listed building? Quite a challenge; take a look below to see how we achieved a fantastic result for this complex project.

"The audio within the hall across both floors is crystal clear and provides the right amount of voice reinforcement required to make ceremonies enjoyable from a practical and technical point of view. The system inputs in a very straightforward way to our broadcast system and we’ve already received an excellent response from people all over the world who have been unable to attend ceremonies and have instead enjoyed our YouTube transmissions. The support we received from POLAR has once again been exemplary, from the pre-sales meetings with Stuart, Will and Mark through to the configuration of the equipment with the POLAR engineers."

1. The Objective

NTU required a system to provide sound reinforcement, signal processing and lecture capture for the main ceremonial hall, as well as further audio provision for the ancillary spaces. The listed status of the main hall demanded that all works be undertaken with great sensitivity towards the Victorian interior. NTU’s AV Team Leader Stuart Loughran asked POLAR to design a system to meet its requirements and Roche Audio Visual was appointed to install the systems. The main ceremonial hall is divided between a ground floor and a surrounding first floor mezzanine. The nature of the architecture conspires to produce a highly reverberant space, complicated by low-ceilinged areas beneath the mezzanine. Flexible wireless microphone systems were required to cater for a wide range of uses in both the hall and the Music Centre.

2. Our Approach

In the main hall Roche AV installed 2 x Renkus Heinz ICONYX IC16-RD (white) in the upstairs mezzanine area and 2 x IC8-RD downstairs. Each self-powered IC16 allows up to 8 steerable beams to be individually shaped and aimed, whilst the IC 8 allows up to 4. 2 x Renkus Heinz CF 15S-5 self-powered subwoofers we’re located downstairs. Supplementing the system were four pairs of Cornered Audio C5TRM speakers positioned as delays (two in the upper area and two in the lower) for additional voice lift when required. Driven by 4 x high performance MC2 T1000 amplifiers, the triangular Cornered Audio speakers mount discreetly between wall and ceiling and deliver wide dispersion, low power compression and excellent sound quality. 

3. Outcomes

Stuart Loughran, AV and Media Services Team Leader at NTU was very pleased with the outcome:

Our principal aim was to enhance the graduation ceremony experience by providing an AV solution that could be streamed to other venues in the university, as well as to our dedicated YouTube channel. The beyerdynamic gooseneck microphones assist the Vice Chancellor, Registrar and other dignitaries addressing the guests and graduands, whilst the beltpack and handheld mics act as back up or for use in other events. The Renkus Heinz Iconyx speakers were an easy choice to make - we’ve had a lot of experience with them and they provide excellent coverage to a large area of the hall. The Cornered Audio C5TRMs provide the necessary infill for further into the room, managed by a couple of Biamp Tesira Forte DSPs in the control room. 

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