Very interesting exploration of Helmholtz theory and application. As someone who has had the opportunity to experiment with an Acustica Applicata Polifemo in a real world listening environment I can tell you that these really work and can eliminate unwelcome bass nodes and frequency anomalies without the use of signal degrading DSP filters or electronic equalization. Once properly positioned and tuned within the space the Polifemo simply and effectively smooths out the bumps that can intrude on the presentation. Highly recommended!
Absorbing traffic noise with Helmholtz resonators (video)
Interesting talk.
@mahgister will like!
"These Bricks Can Absorb Traffic Noise - Thesis Presentation on Helmholtz Resonators"
"I gave a talk on my Masters Thesis Project in Architecture focusing on Altering Soundscapes in Exterior Environments using Helmholtz Resonators in Ceramic Bricks to absorb Low Frequency Traffic Noise.
I recently graduated from @BartlettArchUCL at University College London and was invited to give a talk on my project for the Portland Digital Fabrication Club in Portland."
https://www.youtube.com/watch?v=y9-p4AkgVU8&ab_channel=JoeMakes