Drag the blue source and green receiver. Import a plan to trace over it.

2D Acoustic Ray Tracer

Specular reflections to 3rd order

Project

Project no

Project

Client

Units

Rays

Rays (N)

Max order

Capture r

Beam dir°

Beam width°

Display

Absorption

α (selected)

Turn on Select wall, click a wall, then set its absorption (0 = hard/reflective, 1 = fully absorbing, e.g. a broadband absorber). Rays fade as they lose energy at absorptive surfaces; walls tint teal and thicken with higher α.

Floor plan

Known dist

units / px

Rotate°

Scale ×

Room fill

Colour

Opacity

Fill the room over the plan to mask busy background detail inside the space and keep the ray diagram clear.

Paperspace

Width

Height

Snap H/V/45

File

View

Scroll to zoom at the cursor. Middle-drag or hold Space and drag to pan. F = zoom to fit.

Reset

Trace: left-drag source, right-drag receiver, drag squares to move walls. Shift+click a wall to add a vertex; Alt+click a vertex to delete. Wall editing works even with Move on (Move only grabs empty-space drags).
direct 1st 2nd 3rd · bright = reaches receiver.