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AV Math for Design

AV Math for Design

Explore key math formulas typical in AV system design. Increase your confidence through practical examples and practice problems.

Course Description

Work the calculations an AV designer uses on the job, from image height and projector brightness to loudspeaker spacing, amplifier sizing, conduit fill, and rack heat load.

Who it’s for. AV design professionals, CTS-D candidates, and experienced practitioners who want a structured refresher in design math.

Learning outcomes.

  • Calculate minimum image height, farthest viewer, and closest viewer distances for analytical and basic decision making tasks

  • Determine required projector lumens from ambient light measurements, screen area, and target contrast ratio

  • Size video system components by calculating computer video signal bandwidth and required system bandwidth

  • Design ceiling loudspeaker layouts by calculating coverage diameter, spacing, wattage at the loudspeaker, circuit impedance, and amplifier wattage

  • Evaluate sound system stability by comparing PAG and NAG with feedback stability margin and number of open microphones

  • Specify infrastructure by calculating conduit capacity, jam ratio, rack heat load in Btu, and amperage draw

Topics covered.

  • Math Refresher: scientific calculators and order of operations

  • Viewing Environment: image height, farthest and closest viewer

  • Projection and Video: camera image size, lumens output, signal and system bandwidth

  • Audio and Loudspeakers: coverage, spacing, EPR, impedance, amplifier wattage, PAG/NAG

  • Infrastructure: conduit capacity and jam ratio, heat load, amperage draw

Prerequisites

Students are strongly encouraged to complete AV Math Online.

Course Information

Tracks

Designer

Topics

ServicesInfrastructure

Renewal Units

CTSCount: 15CTS-DCount: 15CTS-ICount: 15RUCount: 15

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