Build a kit
Enter your room’s dimensions and pick your level: you see for free which elements it takes and the estimated RT60. The kit document includes the measurements, the floor plan, the installation height and the guide.
Online software · Subscription
Design your room’s acoustic treatment, right from the browser.
SN Acoustics Lab Toolkit is a set of online acoustic calculators: room modes, reverberation time (RT60), absorber panels, Helmholtz resonators and QRD and Skyline diffusers. You adjust the parameters, see the results instantly and download cut lists, assembly guides, laser-cutting files and PDF reports.
Nothing to install. Works in any modern browser.
10 tools
Everything you calculate before you build
Each tool solves one part of a room’s acoustic design: analyzing the space, sizing the absorption and designing the diffusers.
Room modes
Axial, tangential and oblique modes up to the Schroeder frequency, Bonello criterion and room-ratio comparison.
3D map + Sabine
3D pressure zones for each mode and RT60 per band with the absorption area you need. The PDF RT60 report is a download from your plan.
Irregular room
Modes and mode shapes for floor plans that are not rectangular, with the room’s RT60.
Absorber panel
Absorption curve and per-band coefficients by material, thickness and air gap.
Helmholtz
Perforated-sheet resonator for bass: frequency response, cross section, dimensioned front face and 3D model.
BAD panel
A surface that absorbs and diffuses: hole pattern, rear cavity, response and cutting file.
Skyline
2D post diffuser: length grid, grouped cut list and 3D model.
QRD
Quadratic-residue diffuser: sequence, well profile, diffusion range and cutting file.
QRD 2D
Two-dimensional diffuser: depth grid, materials, laser cutting and assembly guide.
Inside the software
Real results, not eyeballed estimates
How it works
Three steps
01
Sign in with your email
No password: we email you a sign-in link. You can use the free analysis tools right away.
02
Subscribe to a plan
The subscription unlocks the design tools (Helmholtz, BAD panel, Skyline, QRD and QRD 2D) and gives you a number of downloads each month.
03
Design and download
Each download includes the cut list, the assembly guide and the 3D model of the design, or the PDF RT60 report.
Without a subscription
- Room modes, 3D map + Sabine, Irregular room and Absorber panel
- Build a kit: which elements your room takes and the estimated RT60 (the kit document is a separate purchase)
- Helmholtz, BAD, Skyline, QRD and QRD 2D stay locked
- No downloads or reports
With a subscription
- Helmholtz, BAD, Skyline, QRD and QRD 2D with all their parameters
- The complete design of each element: measurements, cuts and 3D model
- Monthly downloads according to your plan
- PDF RT60 reports
Plans
Choose how many downloads you need per month
All plans include the same tools. Only the number of monthly downloads changes.
Starter
$17.99
USD per month
- 8 downloads per month
- Full access to all 10 tools
- PDF RT60 reports
Most popular
Pro
$35.99
USD per month
- 20 downloads per month
- Full access to all 10 tools
- PDF RT60 reports
Studio
$55.99
USD per month
- 40 downloads per month
- Full access to all 10 tools
- PDF RT60 reports
Build a kit — a custom design, separate from the plans
You don’t need to know acoustics. Enter your room’s dimensions, pick your level and get a design made for your space: what to build and how many pieces, the specifications of each element, an installation plan showing where each one goes and the step-by-step guide. What you pay for is the design, not a download: that is why it is a separate purchase from the plans.
Amateur$9.99Absorber panels and ceiling clouds
Semi-pro$14.99+ Helmholtz bass traps
Professional$19.99+ QRD diffusers
Engineer$23.99+ QRD 2D diffuser and BAD panel
Prices in USD, taxes included. One-time purchase, not included in any plan and it does not use your subscription downloads. It includes the download of the cut files, assembly guides and 3D models of each element in your kit, and if you lose the PDF you can regenerate it for the same room.
Prices in US dollars, taxes included. Unused downloads do not roll over from one month to the next. If you run out of your allowance, you can buy an extra download for $2.99 USD at the moment you download. You can cancel at any time. See the refund policy and the terms of service.
Frequently asked questions
Before you subscribe
What counts as a download?
Each time you download the files of a design (the cut list, assembly guide and 3D model come together as a single download) or a PDF RT60 report, one download is deducted from your monthly allowance.
Do downloads roll over?
No. Your allowance renews every calendar month and downloads you don’t use do not carry over to the next month.
What happens if I run out of my allowance?
You can keep using all the tools. To download, you buy an extra download for $2.99 USD or wait until your allowance renews.
Can I change plans or cancel?
Yes. From your customer portal you can change plans, update your payment method or cancel. If you cancel, you keep access until the end of the period you already paid for.
Is the kit included in my plan?
No. Plans give you access to the tools and a number of downloads per month. The kit is something else: a complete design made for your room’s dimensions, with its installation plan. It is bought separately and does not use your plan’s downloads.
What does the kit document include?
The recommended kit for your room’s dimensions and your level, with the quantity and measurements of each element, cut lists and assembly guides, the target reverberation time and a floor plan showing where each piece goes: panels in front of the monitors and at the first side reflections, bass traps and diffusers at the back of the room.
Do I need to install anything?
No. Everything works in the browser. The files you download open with common programs (PDF, SVG, DXF).
Who processes the payments?
Payments are processed through our authorized reseller, which acts as the registered merchant (Merchant of Record) and handles the applicable taxes in your country.