About this one tool

A small model.
Explicit assumptions.

Roomaxis is a free browser-local calculator for ideal rectangular-room axial-mode frequencies. It is for inspecting entered mathematical assumptions with labelled results.

What is provided

One calculator enumerates the chosen axial orders along length, width and height. The worked guide explains the half-wave model, exact ties, unit conversion and the distinction between frequency positions and measured response. Text, CSV and SVG exports are generated locally. There is no subscription, payment form, account, microphone capture or audio playback.

Use and limitations

The results depend on your entered dimensions and sound-speed assumption. Rigid rectangular boundaries and axial-only scope are simplifications. Roomaxis does not provide an acoustic survey, room-quality rating, speaker-placement plan, EQ setting, treatment recommendation, health judgement or compliance service. Check the assumptions and labels before reusing an export. Availability and correctness cannot be guaranteed for every purpose; please report a reproducible error so it can be investigated.

Service configuration

Cloudflare Web Analytics is enabled in this site's hosting settings for aggregate traffic and page-performance reports when its beacon loads. Read Privacy for measurement and hosting details. The calculator remains free. Publisher identification does not itself activate advertising or establish approval or earnings; the site's actual advertising configuration is described in the privacy notice.

Corrections and contact

The contact page uses an existing verified shared forwarding alias from the same small tool portfolio. It is not a newly created Roomaxis mailbox. You can send a numerical example and the expected result without supplying recordings, room addresses or personal financial information.