Soundblooms Diffuser Generator
Free open-source tool for printable acoustic diffuser tiles and bass trap blocks, sized to your printer bed
Soundblooms Diffuser Generator is a free browser tool for printing acoustic diffuser panels for a home studio or listening room. Free, no account, open source (GPL-3.0). Exports STL and SVG. Last checked .
Opens chronosauros.github.io
What is Soundblooms Diffuser Generator?
The Soundblooms Diffuser Generator makes printable acoustic diffuser tiles for a home studio or listening room. The well depths follow the quadratic residue sequence (Schroeder diffusers), with the formulas taken from Cox and D'Antonio's textbook. There are two series: deep tiles (a 1D diffuser with wells and fins) and block tiles (a shallow 2D diffuser for upper mids and treble). You pick a series, how many tiles the wall gets and your printer bed, and every tile is sized to the bed with a 25 mm margin. There are presets for the Bambu Lab A1 mini, Prusa MK4 / Core One and Bambu Lab P1S / X1, or you enter a custom bed.
Tiles are numbered in a fixed order, so a wall can grow later without moving the ones already up. The page shows a 3D preview, a wall plan, the design frequency band and a rough print time and filament estimate. You download the whole wall as a ZIP (one STL per tile number, the wall plan as SVG and a README with quantities) or a single tile STL. A second tab, Bass traps, takes your room size, lists its modes up to 120 Hz and builds blocks of folded quarter-wave resonator cells tuned to one mode, with end caps and a print plan in the ZIP.
Be aware that the acoustics are calculated, not measured. The README says the tiles have not been measured and the generator was built with AI assistance, and the bass trap tab says nobody has printed and measured the cells in a room yet. It is free, needs no account and runs in your browser. The code is open source under GPL-3.0 on GitHub; the ready-made tile files on Printables have their own CC BY-NC-SA 4.0 license.
What you can make
- Acoustic diffuser tiles (1D and 2D QRD)
- Whole diffuser walls with a wall plan
- Bass trap blocks tuned to one room mode
How to use Soundblooms Diffuser Generator
- Open the generator and choose the deep or block series
- Set how many tiles the wall gets and pick your printer bed
- Check the tiles in the 3D preview and the wall plan
- Download the wall ZIP or a single tile STL and print
What you'll need to print it
Filament and parts that suit what you make with Soundblooms Diffuser Generator.
Matte PLA
- Bambu Lab PLA Matte (affiliate link) Amazon
- Polymaker Panchroma Matte PLA (formerly PolyTerra) (affiliate link) Polymaker EU: 3DJake (affiliate link)
Code gives 15% off your first order at Polymaker.
PETG
Some of these are affiliate links: we may earn a small commission, at no extra cost to you. More about that
Soundblooms Diffuser Generator pros
- Tiles sized to your printer bed, with presets for common Bambu Lab and Prusa printers
- Whole-wall ZIP with one STL per tile number, an SVG wall plan and quantities
- Explains the math and says plainly that the numbers are calculated, not measured
Soundblooms Diffuser Generator cons
- The acoustic performance has not been measured on real prints
- Diffusers do nothing for bass or loudness, and a full wall takes many prints
- Needs an internet connection the first time to load its 3D libraries
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