• Education
    • Higher Education
    • Scholarships & Grants
    • Online Learning
    • School Reforms
    • Research & Innovation
  • Lifestyle
    • Travel
    • Food & Drink
    • Fashion & Beauty
    • Home & Living
    • Relationships & Family
  • Technology & Startups
    • Software & Apps
    • Startup Success Stories
    • Startups & Innovations
    • Tech Regulations
    • Venture Capital
    • Artificial Intelligence
    • Cybersecurity
    • Emerging Technologies
    • Gadgets & Devices
    • Industry Analysis
  • About us
  • Contact
  • Advertise with Us
  • Privacy & Policy
Today Headline
  • Home
  • World News
    • Us & Canada
    • Europe
    • Asia
    • Africa
    • Middle East
  • Politics
    • Elections
    • Political Parties
    • Government Policies
    • International Relations
    • Legislative News
  • Business & Finance
    • Market Trends
    • Stock Market
    • Entrepreneurship
    • Corporate News
    • Economic Policies
  • Science & Environment
    • Space Exploration
    • Climate Change
    • Wildlife & Conservation
    • Environmental Policies
    • Medical Research
  • Health
    • Public Health
    • Mental Health
    • Medical Breakthroughs
    • Fitness & Nutrition
    • Pandemic Updates
  • Sports
    • Football
    • Basketball
    • Tennis
    • Olympics
    • Motorsport
  • Entertainment
    • Movies
    • Music
    • TV & Streaming
    • Celebrity News
    • Awards & Festivals
  • Crime & Justice
    • Court Cases
    • Cybercrime
    • Policing
    • Criminal Investigations
    • Legal Reforms
No Result
View All Result
  • Home
  • World News
    • Us & Canada
    • Europe
    • Asia
    • Africa
    • Middle East
  • Politics
    • Elections
    • Political Parties
    • Government Policies
    • International Relations
    • Legislative News
  • Business & Finance
    • Market Trends
    • Stock Market
    • Entrepreneurship
    • Corporate News
    • Economic Policies
  • Science & Environment
    • Space Exploration
    • Climate Change
    • Wildlife & Conservation
    • Environmental Policies
    • Medical Research
  • Health
    • Public Health
    • Mental Health
    • Medical Breakthroughs
    • Fitness & Nutrition
    • Pandemic Updates
  • Sports
    • Football
    • Basketball
    • Tennis
    • Olympics
    • Motorsport
  • Entertainment
    • Movies
    • Music
    • TV & Streaming
    • Celebrity News
    • Awards & Festivals
  • Crime & Justice
    • Court Cases
    • Cybercrime
    • Policing
    • Criminal Investigations
    • Legal Reforms
No Result
View All Result
Today Headline
No Result
View All Result
Home Science & Environment

Scientists Create ‘Pockets’ of Music from Inaudible Ultrasound Waves todayheadline

March 17, 2025
in Science & Environment
Reading Time: 3 mins read
A A
0
Ditial illustration, blue, glowing sound waves leading into a blue wireframe ear
5
SHARES
10
VIEWS
Share on FacebookShare on Twitter


Bending Ultrasonic Beams Creates ‘Audible Enclaves’ Where They Cross

Inaudible ultrasonic beams steered around obstacles can create pockets of sound in an otherwise quiet room, acoustics experts report

By Dan Vergano edited by Sarah Lewin Frasier

PeterSchreiber.Media/Getty Images

Are you tired of earbuds? Are headphones too heavy? “Pockets” of audible noise in otherwise quiet spots may be on their way to help.

The acoustic advance, reported on March 17 in the Proceedings of the National Academy of Sciences USA, relies on crossing normally inaudible ultrasonic beams to create the sound pockets, or “audible enclaves.” Ultrasound travels with frequencies at and above the highest edge of human hearing, about 20 kilohertz, and is often used in medicine. The study’s ultrasonic beams were pitched high enough to be inaudible and can be made to bend, so they can travel around obstacles to create pockets of sound.

In an era of podcasts and luxury sound systems, delivering audio on demand to a point in space—without requiring listeners to isolate themselves from the rest of the world—looks like a promising technology, says the study’s senior author Yun Jing, an acoustics expert at Pennsylvania State University. The new advance, he says, improves on “parametric” ultrasound technology that produces straight-line beams of audible sound.


On supporting science journalism

If you’re enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


“We are not relying on new concepts. But the beauty of this work is that we can combine technologies in very interesting ways,” Jing says. “And there’s some really interesting applications,” he adds, ranging from home theaters to device-free communications.

To produce the audio enclaves, Jing’s team relied on two separate ultrasound emitters just over six inches wide. Each was covered with 3D-printed metamaterials, whose tiny grooves shaped the emitters’ beams to interfere with each other just so when they crossed. Then the researchers parked a dummy human head right in front of these soundless speakers.

Essentially, audio enclaves are a feat of acoustic subtraction. When one ultrasonic beam that bent to the right and another that bent to the left crossed on the far side of the dummy head, their inaudible sound waves interfered, producing a residual sound at a frequency that humans could hear at the fixed point in space (mathematically, a 39.5 kilohertz beam subtracted from a 40 kilohertz one, leaving behind an audible 500 hertz sound wave). In the demonstration, the researchers played the “Hallelujah Chorus” from George Frideric Handel’s Messiah—with the dummy head none the wiser.

The beams operated with an airborne pressure that was 1⁄5,200 of the Food and Drug Administration’s safety limit for human exposure to ultrasound, the paper noted. But Mark Hinders, a professor of applied science at William & Mary, who was not part of the study, cautions that because ultrasound can damage hearing, the technique would require careful safety testing.

For now, the prototype’s sound quality isn’t perfect. Jing says his team plans to use machine-learning algorithms to analyze the sounds produced by the device and improve its performance. Given the small size of the emitters, he suggests, audio enclaves in cars might be an eventual first application.

Previous Post

Students Dive Into Robotics at Competition Supported by NASA JPL

Next Post

The Workday Is Shorter, But Productivity Is Up: New Study todayheadline

Related Posts

A Case Report of Delayed, Severe, Paroxysmal Muscle Cramping After Chilean Rose Tarantula (Grammostola rosea) Envenomation

A Case Report of Delayed, Severe, Paroxysmal Muscle Cramping After Chilean Rose Tarantula (Grammostola rosea) Envenomation todayheadline

May 31, 2025
4
SpaceX to launch Bandwagon-2 rideshare mission on Falcon 9 rocket from California – Spaceflight Now

West Coast Falcon 9 to launch 27 satellites for SpaceX’s Starlink internet service – Spaceflight Now

May 31, 2025
5
Next Post

The Workday Is Shorter, But Productivity Is Up: New Study todayheadline

  • Trending
  • Comments
  • Latest
Family calls for change after B.C. nurse dies by suicide after attacks on the job

Family calls for change after B.C. nurse dies by suicide after attacks on the job

April 2, 2025
Pioneering 3D printing project shares successes

Product reduces TPH levels to non-hazardous status

November 27, 2024

Hospital Mergers Fail to Deliver Better Care or Lower Costs, Study Finds todayheadline

December 31, 2024

Police ID man who died after Corso Italia fight

December 23, 2024
Harris tells supporters 'never give up' and urges peaceful transfer of power

Harris tells supporters ‘never give up’ and urges peaceful transfer of power

0
Des Moines Man Accused Of Shooting Ex-Girlfriend's Mother

Des Moines Man Accused Of Shooting Ex-Girlfriend’s Mother

0

Trump ‘looks forward’ to White House meeting with Biden

0
Catholic voters were critical to Donald Trump’s blowout victory: ‘Harris snubbed us’

Catholic voters were critical to Donald Trump’s blowout victory: ‘Harris snubbed us’

0
Las Vegas Strip casino signs global superstar for new residency

Las Vegas Strip casino signs global superstar for new residency todayheadline

May 31, 2025
Damning IAEA report spells out past secret nuclear activities in Iran

Damning IAEA report spells out past secret nuclear activities in Iran todayheadline

May 31, 2025

This $200 MacBook Air Handles Your Hustle Without Complaints todayheadline

May 31, 2025
A Case Report of Delayed, Severe, Paroxysmal Muscle Cramping After Chilean Rose Tarantula (Grammostola rosea) Envenomation

A Case Report of Delayed, Severe, Paroxysmal Muscle Cramping After Chilean Rose Tarantula (Grammostola rosea) Envenomation todayheadline

May 31, 2025

Recent News

Las Vegas Strip casino signs global superstar for new residency

Las Vegas Strip casino signs global superstar for new residency todayheadline

May 31, 2025
1
Damning IAEA report spells out past secret nuclear activities in Iran

Damning IAEA report spells out past secret nuclear activities in Iran todayheadline

May 31, 2025
5

This $200 MacBook Air Handles Your Hustle Without Complaints todayheadline

May 31, 2025
5
A Case Report of Delayed, Severe, Paroxysmal Muscle Cramping After Chilean Rose Tarantula (Grammostola rosea) Envenomation

A Case Report of Delayed, Severe, Paroxysmal Muscle Cramping After Chilean Rose Tarantula (Grammostola rosea) Envenomation todayheadline

May 31, 2025
4

TodayHeadline is a dynamic news website dedicated to delivering up-to-date and comprehensive news coverage from around the globe.

Follow Us

Browse by Category

  • Africa
  • Asia
  • Basketball
  • Business & Finance
  • Climate Change
  • Crime & Justice
  • Cybersecurity
  • Economic Policies
  • Elections
  • Entertainment
  • Entrepreneurship
  • Environmental Policies
  • Europe
  • Football
  • Gadgets & Devices
  • Health
  • Medical Research
  • Mental Health
  • Middle East
  • Motorsport
  • Olympics
  • Politics
  • Public Health
  • Relationships & Family
  • Science & Environment
  • Software & Apps
  • Space Exploration
  • Sports
  • Stock Market
  • Technology & Startups
  • Tennis
  • Travel
  • Uncategorized
  • Us & Canada
  • Wildlife & Conservation
  • World News

Recent News

Las Vegas Strip casino signs global superstar for new residency

Las Vegas Strip casino signs global superstar for new residency todayheadline

May 31, 2025
Damning IAEA report spells out past secret nuclear activities in Iran

Damning IAEA report spells out past secret nuclear activities in Iran todayheadline

May 31, 2025
  • Education
  • Lifestyle
  • Technology & Startups
  • About us
  • Contact
  • Advertise with Us
  • Privacy & Policy

© 2024 Todayheadline.co

Welcome Back!

OR

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Business & Finance
  • Corporate News
  • Economic Policies
  • Entrepreneurship
  • Market Trends
  • Crime & Justice
  • Court Cases
  • Criminal Investigations
  • Cybercrime
  • Legal Reforms
  • Policing
  • Education
  • Higher Education
  • Online Learning
  • Entertainment
  • Awards & Festivals
  • Celebrity News
  • Movies
  • Music
  • Health
  • Fitness & Nutrition
  • Medical Breakthroughs
  • Mental Health
  • Pandemic Updates
  • Lifestyle
  • Fashion & Beauty
  • Food & Drink
  • Home & Living
  • Politics
  • Elections
  • Government Policies
  • International Relations
  • Legislative News
  • Political Parties
  • Africa
  • Asia
  • Europe
  • Middle East
  • Artificial Intelligence
  • Cybersecurity
  • Emerging Technologies
  • Gadgets & Devices
  • Industry Analysis
  • Basketball
  • Football
  • Motorsport
  • Olympics
  • Climate Change
  • Environmental Policies
  • Medical Research
  • Science & Environment
  • Space Exploration
  • Wildlife & Conservation
  • Sports
  • Tennis
  • Technology & Startups
  • Software & Apps
  • Startup Success Stories
  • Startups & Innovations
  • Tech Regulations
  • Venture Capital
  • Uncategorized
  • World News
  • Us & Canada
  • Public Health
  • Relationships & Family
  • Travel
  • Research & Innovation
  • Scholarships & Grants
  • School Reforms
  • Stock Market
  • TV & Streaming
  • Advertise with Us
  • Privacy & Policy
  • About us
  • Contact

© 2024 Todayheadline.co