NANPENG / ENGINEERING TOOLBOX
Good rooms start
with clear thinking.
Explore the geometry, power and performance behind your AV system. Nine connected tools. One shared room.
No sign-up. Projects stay on your device. PDF reports included.
Choose a starting point.
Use a quick calculator, or connect tools in a room workspace.
Visual engineering
Display & sightlines
Compare image dimensions, mounting heights and viewing geometry around the people in your room.
02Visual engineering
LED wall & electrical load
Build an integer cabinet layout and trace resolution, steady-state power and circuit allocations.
03Visual engineering
Projection & contrast
Evaluate throw distance and screen luminance with explicit ambient-light and projector assumptions.
04Visual engineering
Camera field of view
Plan camera coverage and participant positions in shared top, front and side views.
05Audio & infrastructure
Speaker coverage & SPL
Estimate direct sound at listening positions, with clear limits around polar data and room acoustics.
06Audio & infrastructure
Microphone coverage
Check explicit source distances against manufacturer-supported pickup conditions and map seats.
07Audio & infrastructure
Rack power & cooling
Account for equipment power, usable rack space and the heat actually released inside the rack.
08Environmental engineering
Room acoustics & RT60
Compare frequency-dependent absorption and a statistical reverberation estimate before and after treatment.
09Environmental engineering
VC lighting planner
Keep measured face illuminance separate from directional-source estimates and workplane lighting.
Useful estimates.
Honest boundaries.
Every result names its method and the inputs it needs. Missing specifications stay missing — they are never replaced with a convincing-looking number.
These tools support preliminary design. They do not certify AVIXA compliance, electrical installations or manufacturer performance.
Read the calculation methods