Parametric sound diffuser:

[https://makerworld.com/en/models/2946924-parametric-sound-diffuser#profileId-3301208](https://makerworld.com/en/models/2946924-parametric-sound-diffuser#profileId-3301208)

If you’re eager to burn your filament and proudly display this amazing and completely useless sound diffuser on your wall, this has been made for you !

To avoid waves on faces set 2 walls, 10% infill minimum.

Printed with PLA mate

Size: 23 cm x 23 cm x 1.3 cm

Joking aside:

I don't have any expertise in sound physics, just a newbie in 3D modeling so bellow CHATGPT response about sound diffuser made of PLA.

A sound diffuser made of PLA can be effective for certain acoustic purposes, but its efficiency depends on the design, placement, and the specific acoustic goals. Here’s an analysis:

Advantages of a PLA Sound Diffuser:

1. Customizability:

• PLA is easy to 3D print, allowing for intricate and optimized diffuser designs (e.g., QRD or skyline diffusers).

• Complex geometries that maximize diffusion can be achieved at a relatively low cost.

2. Lightweight:

• PLA diffusers are lightweight, making them easy to mount on walls or ceilings.

3. Acoustic Functionality:

• The effectiveness of a diffuser relies on its shape, not its material. PLA can disperse sound waves effectively if the design is correct (e.g., scattering sound in multiple directions).

Limitations of PLA for Diffusion:

1. Lack of Density:

• PLA is not as dense as traditional materials like wood or plastic composites. This means it might not scatter lower-frequency sounds as effectively, as those require more mass to be redirected efficiently.

2. Durability and Heat Sensitivity:

• PLA can warp under high heat or direct sunlight, which could compromise the geometry of the diffuser over time.

3. Narrow Frequency Range:

• PLA diffusers may work well for mid- to high-frequency sounds but are less effective for low frequencies, where heavier materials are generally better.