Hacker News with Generative AI: Acoustics

Soft Metalens for Broadband Ultrasonic Focusing Through Aberration Layers (nature.com)
Aberration layers (AL) often present significant energy transmission barriers in microwave engineering, electromagnetic waves, and medical ultrasound.

Science, Materials Science, Acoustics, Ultrasound, Optics

16 points by bookofjoe 13 days ago | 2 comments

The Color of Noise (2014) (caseymuratori.com)
Everyone knows what “white noise” is, at least intuitively. People say “white noise” to refer to the static on an analog radio or the sound of ocean waves breaking on the beach. But have you ever wondered why the term “white noise” is common, yet you never hear noise referred to as being any other color, like “red noise” or “green noise”?

Sound, Acoustics, Terminology, Audio

80 points by ekzhang 48 days ago | 12 comments

Tunable ultrasound propagation in microscale metamaterials (news.mit.edu)
A new study coauthored by Portela; Rachel Sun, Jet Lem, and Yun Kai of the MIT Department of Mechanical Engineering (MechE); and Washington DeLima of the U.S. Department of Energy Kansas City National Security Campus presents a design framework for controlling ultrasound wave propagation in microscopic acoustic metamaterials.

Acoustics, Metamaterials, Nanotechnology, Materials Science, Engineering

32 points by XzetaU8 55 days ago | 6 comments

Rodents remotely move matter using sound to enhance their sense of smell: study (buffalo.edu)
Scientists have debated the purpose of the ultrasonic vocalizations (USVs) produced by rodents since the discovery of these sounds in the 1950s.

Science, Animal Behavior, Acoustics, Research

49 points by peutetre 95 days ago | 8 comments

Scientists found a way to make sound travel in only one direction (zmescience.com)

Science, Acoustics, Physics

77 points by Brajeshwar 97 days ago | 18 comments

Physicists generated sound waves that travel in one direction only (sciencealert.com)
Imagine three people huddled in a circle so when one speaks, only one other hears. Scientists have created a device that works like that, ensuring sound waves ripple in one direction only.

Physics, Sound Waves, Acoustics

58 points by mavci 98 days ago | 3 comments

How does David Geffen Hall sound? (nytimes.com)
The newly renovated David Geffen Hall has beechwood panels along the walls, embellished to help reduce the edge of higher frequencies.

Music, Architecture, Acoustics

11 points by Thevet 101 days ago | 1 comments

Ultra-thin sound-suppressing silk fabric works like noise-cancelling headphones (cbc.ca)

Materials Science, Acoustics, Fashion, Noise Cancellation

9 points by colinprince 140 days ago | 1 comments

Ask HN: Is active music cancelation possible? (ycombinator.com)

Audio, Technology, Acoustics, Music

10 points by solardev 175 days ago | 15 comments

Moving objects precisely with sound (epfl.ch)

Acoustics, Physics, Engineering

101 points by geox 206 days ago | 15 comments

Sonoluminescence (wikipedia.org)