What the Room Acoustic Simulator does
Enter a room size, place speakers and subwoofers on a to-scale top-down plan, set each one’s aim and mount height, and see a broadband SPL heatmap with per-speaker coverage footprints and a plain-language coverage verdict. It carries verified specifications for 122 professional speaker models across 8 brands.
How the estimate is calculated
Each speaker’s maximum SPL at one metre is attenuated by the inverse-square law over the 3D distance to each floor point at ear height, reduced by an off-axis roll-off derived from the coverage angle, then energy-summed across all placed speakers. This is a free-field estimate: it does not model room reflections, reverberation time, room modes, air absorption or per-frequency behaviour.
How this differs from EASE Focus
Engineering-grade acoustic simulation (EASE Focus 3 / AFMG) uses measured per-frequency directivity data (GLL files) and models reflections and air absorption. This tool is a fast first-pass coverage estimate; for a final design, use EASE Focus 3 or send the brief.
Room Acoustic Simulator — SPL heatmap and coverage footprints
Free-field broadband estimate — not a measured acoustic simulation. Reflections, room modes and per-frequency behaviour are not modelled. For engineering-grade results use EASE Focus 3 or send the brief.
· What the estimate is good for
Place four ceiling speakers in a 6 × 8 m open-plan office and the heatmap shows whether the corners fall more than 6 dB below the centre — the classic early sign you need a denser grid or wider-coverage models before the ceiling is even drawn. It is a first-pass coverage check, not a measured acoustic design.
· Frequently asked
Room Acoustic Simulator —
what people ask first.
Is this a real acoustic simulation?
No — it is an indicative free-field broadband estimate. It models inverse-square attenuation and off-axis roll-off, energy-summed across the speakers you place, but it does not model room reflections, reverberation time, room modes, air absorption or per-frequency behaviour. For a measured, engineering-grade design, use EASE Focus 3 (AFMG) with GLL directivity data, or send us the brief.
What do the SPL numbers mean?
They are an indicative coverage read: the minimum, average and maximum SPL across the floor at ear height, how uniform that coverage is, and how much of the floor sits on your target level. Treat them as a first-pass sanity check on speaker count and placement — not a final specification or a guaranteed measured result.
Which speakers can I place?
The full public catalogue of professional models we work with, each carrying a verified maximum-SPL and coverage-angle specification. Brand names appear as ecosystem examples to make the estimate concrete; their presence here implies no exclusivity, authorisation or partnership claim.
Can I use this to specify a system?
Use it to explore options and frame the brief. The final specification — subwoofer integration, DSP, delay alignment and per-frequency tuning — is engineered against a measured model and a site visit, then verified by commissioning measurements on site.
How accurate is the coverage verdict?
The verdict is illustrative — a plain-language read of the uniformity and on-target percentage. It is directionally useful for catching obvious gaps or overlaps early; it is not a substitute for on-site commissioning measurements such as SPL mapping or speech-intelligibility (STI) testing.
· Begin
Take the layout to an
acoustic workshop.
Send the room and the placement you arrived at here. We re-model it against measured directivity data and your finishes, then validate it on site before anything is specified.