NSC applies cutting-edge technology and tools when
designing and installing sound systems for our clients. Using precise installation
instruments, we can
aim sound exactly where it should go to avoid putting excess sound energy
onto the walls and ceiling. This makes it possible to provide even coverage,
avoid feedback, maximize speech intelligibility and provide clarity of speech
even in a reverberant space.
Computer Design Assistance
NSC is professionally trained and experienced in computer aided sound system design. We
start with a thorough analysis of your needs, taking into consideration
future plans and the acoustics of the room in question. Each project is
handled with individual attention to all details. An EASE (Electro Acoustic
Simulator for Engineers) computer model is created with respect to elements
such as building layout, construction materials, ceiling heights, etc.
This model allows us to simulate the unique acoustic environment inside
your buildings presentation area. The speakers from your newly designed
sound system are then placed into this virtual environment, enabling us
to check the interaction between the two. This information also helps us
to consult on the possible need for acoustical treatments, and work with
architects and contractors to meet your specific needs for the presentation
space.
EASE Computer Modeling
RT60 (Reverberation/Frequency) - In very simple terms, reverberation is
how long sound energy remains in a room at various frequencies after the original
source of the sound is no longer present. The amount of reverb in a room
will directly affect spoken word intelligibility and the performance of the sound
system speakers. The computer model gives us the predicted RT60 times of a room,
which allows us to determine if different speakers, or acoustical treatments
may be needed for acceptable speech intelligibility to be achieved.
Sound Pressure Level (SPL) - One of the desired goals of a good sound
system design is coverage of the seating areas that is perceived as smooth and
even. This chart can show us the predicted volume or energy levels of the speakers
at any seat, and at various frequencies.
Predicted Volume Levels of Speakers
Speaker Clarity and Acoutics
Articulation Loss of Consonants (ALCons) - How clear
and understandable spoken word is when delivered from the speakers is critical
to the success of the sound system design. The acoustics of the room along
with the performance of the speakers are what determines the results. In our
opinion this is one of the most important criteria that can be predicted by
the model.
Other Design and Testing Tools
AutoCAD - NSC uses AutoCAD as a tool for documentation
of the design, "As-Built" equipment layout, signal flow, wiring
and labeling of a system.
Creating the perfect Acoustical Environment
TEF and RTA are
used to analyze the "live" acoustical environment. This allows us
to remove feedback causing frequencies when adjusting a sound system, create
a natural sound, and consult on the possible need for acoustical treatments.
TRAINING
At NSC it is our practice to continually upgrade our staff's knowledge and
abilities through on-going training so we may better serve our clients' needs. This training is your assurance that Northern Sound Contracting is always in sync with the most current technologies and installation techniques available.
Partial list of continuing education providers for NSC:
Peavey Training Facility
National Systems Contractors Association - Systems Design and Installation
Synergetic
Audio Concepts - Sound System Design
Media Matrix - Digital System Architecture & Programming
Crestron - Programming
and Installation Certification
BSS Audio - Digital Architecture, Design, and Programming
EASE 3.0 - Enhanced Acoustics
Simulator for Engineers Acoustic Modeling
International Communications Industries
Association - Video system design
