Sound-suppressing silk can create quiet spaces
Researchers have developed a piezoelectric silk fabric that can actively suppress sound, prompting interest in applications from curtains and carpets to portable “quiet zones” around beds or workspaces. Commenters note that while such materials could meaningfully reduce mid‑ to high‑frequency noise in homes, offices and meeting rooms, low‑frequency vibrations and structural noise still require traditional mass‑and‑isolation construction techniques. The conversation broadens into how little attention is paid to acoustics in building codes and urban planning, with many arguing that tackling noise at its sources—especially cars, motorbikes and loud appliances—would have the greatest impact on quality of life.
Enthusiasm and Desired Use Cases
- Many commenters express strong interest in products: curtains, carpets, window coverings, mosquito-net-like canopies around beds, portable office “bubbles,” and flexible room dividers.
- Common personal problems: traffic, barking dogs, snoring partners, thin apartment walls, noisy neighbors, loud restaurants, and open-plan offices.
- People imagine applications in homes, cafés, meeting rooms, churches with partition curtains, airplanes, and cars.
- Some want window materials that allow airflow but block or cancel exterior sound.
Technical Performance and Limitations
- Readers note the fabric is based on piezoelectric fibers and can function as a loudspeaker/microphone, implying it is an active system, not just a passive absorber.
- Reported attenuation in one mode is about 75% (~6 dB), with tests mainly above 100 Hz.
- Several discuss that high and mid frequencies are relatively easy to treat; low frequencies (bass, structure-borne noise) remain hard and often require mass and isolation.
- Audio professionals suggest this silk could be useful for speech-focused spaces (meeting rooms, restaurants), but likely not sufficient for serious recording studios or deep bass issues.
Acoustics, Construction, and Retrofitting
- Multiple comments emphasize fundamentals: sound isolation usually needs mass, decoupling, and careful design (double drywall, staggered studs, rockwool, resilient channels, sealing gaps).
- Retrofitting is described as expensive and invasive; adding proper acoustic treatment during construction is much cheaper but often neglected.
- There is mention of existing standards (e.g., sound transmission ratings) but a lack of consumer visibility and market pressure.
Noise Sources and Policy vs. Tech
- Some argue that most problematic noise in cities comes from cars and motorbikes, advocating for stricter regulation (mufflers, quiet tires, EV adoption, noise cameras) rather than high-tech fixes.
- Others note that for them, the main issues are internal: family members, neighbors, pets, household equipment.
Wellbeing, Coping Strategies, and Concerns
- Commenters describe life-changing benefits of quiet environments and stress from chronic noise exposure.
- Coping strategies discussed: various earplug types, white/pink/brown noise masking, fans, and soundproof windows.
- One thread raises privacy concerns: fabric that acts as a microphone in clothing could enable covert surveillance.
- Some skepticism remains about how well large-area active cancellation can work in complex, multi-source real rooms; technical details of the “held-still” suppression mode are seen as unclear.