What the study reports
Two Fabry–Pérot resonator arrays flank a microperforated plate. Coupling degenerate monopole and dipole responses enables broadband acoustic control; the abstract reports 99% absorption across 200–2000 Hz and a vacuum-cleaner demonstration with airflow. [1]
What this does not establish
Abstract-level assessment: measurement geometry, airflow rate, pressure drop and uncertainty were not reviewed. The reported λ/107 is a cumulative interaction length at 200 Hz; it must not be read as the full device thickness.
Our engineering reading
Our interpretation is that coordinated resonances offer a useful route for ventilated noise control, but application comparisons need equal airflow and pressure-drop conditions.
Editorial interpretation; not an additional measured result.Broadband sound manipulation via monopole-dipole degeneracy in ventilated metamaterials
Physical Review Applied · 21 October 2026
DOI: 10.1103/w6p4-ylqz- Primary journal source PRIMARY SOURCE · publisher · checked 27 October 2026
- Crossref bibliographic metadata · metadata · checked 27 October 2026
Scientific coverage: Publisher abstract, complete author-affiliation mapping and version-of-record date reviewed; subscription methods not reviewed.. Source check: 27 October 2026.
Metadata enrichment does not imply that the full scientific methods were reviewed.