Across Acoustics

Nov 10 2024 69 ep. 26 mins 36

Across Acoustics Podcast artwork

The official podcast of the Acoustical Society of America's Publications' Office. Highlighting authors' research from our four publications - The Journal of the Acoustical Society of America (JASA), JASA Express Letters, Proceedings of Meetings on Acoustics (POMA), and Acoustics Today.

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Student Paper Competition: A Small Ship-Like Structure, Underwater Micronavigation, and Rotorcraft Noise

Nov 10 2024 49 mins

This episode, we talk to a few of the latest round of POMA Student Paper Competition winners from the 186th ASA Meeting in Ottawa about their exciting research endeavors:- Using a small-scale ship-like structure to test noise mitigation techniques for shipping noise- Modeling spatial coherence in underwater sonar- Understanding the noise created by rotorcraftMake sure to keep an ea

An Ultrasound-Based Touchscreen

Oct 27 2024 20 mins

Current touchscreen technology has its limitations. In this episode, we talk with Jérémy Moriot (Université de Sherbrooke) about his team's development of an ultrasound-based system that not only can work with various types of surfaces, but can also detect multiple touches at the same time. Associated paper: Maxime Bilodeau, Jérémy Moriot, Joëlle Fréchette-Viens Raphaël Bou

Continuous Active Sonar's Impact on Killer Whales

Oct 14 2024 13 mins

When pulsed active sonar was found to cause mass strandings of whales, researchers turned to the quieter continuous active sonar for underwater monitoring. In this episode, Brian K. Branstetter (Naval Facilities Engineering Systems Command Pacific) shares his work to find out how this sonar affects killer whales. Associated paper: Brian K. Branstetter, Michael Felice, Todd Robeck,

How Classroom Acoustics Fail Autistic Students and Teachers

Sep 22 2024 47 mins

We know noisy classrooms and learning environments can negatively impact students and teachers. However, these problems can be compounded for those with autism. We talk to Carmen Rosas-Pérez (Heriot-Watt University) about her research to better understand the experiences of autistic people in daily life acoustic environments. Associated paper: Carmen Rosas-Pérez, Laurent Galbrun,

Can Sound Be Used to Diagnose Arteriosclerosis?

Sep 08 2024 20 mins

Because cardiovascular disease is the world's leading cause of death, researchers have been looking for ways to diagnose it early. Low-frequency sounds have been used to assess the elasticity of blood vessels, but until now, the elastic waves being studied were too fast to get precise measurements. Sibylle Gregoire (INSERM) discusses how here team has been able to image a different

Ultrasound Transducers for Measuring Martian Wind Speeds

Aug 25 2024 14 mins

We have yet to fully understand the wind on Mars, even though it transfers heat, momentum, and molecules from the surface. Traditionally, heat loss and motion detectors have been used to measure wind speeds. Robert D. White (Tufts University) discusses his team's work on ultrasound transducers that may offer a more precise way to measure turbulent eddies on the Red Planet.Associate

Acousto-Optics: Sensing Sound with Light

Aug 12 2024 19 mins

In this episode, we dive into the world of acousto-optics, where light is used to visualize and measure sound-- particularly acoustic phenomena that are difficult to observe. Samuel Verburg (Technical University of Denmark) and Kenji Ishikawa (NTT Communication) share the history of this field of research, as well as discuss modern day applications and potential uses for acousto-op

New Research Roundup: Music as Noise, Instruments as Dynamic Sound Sources, and Modeling Piano Soundboards

Jul 22 2024 57 mins

This episode highlights three recent articles from the field of musical acoustics. First, we talk to Elvira Brattico (Aarhus University) about her research into what causes a person to experience music as noise. Next, Stefan Weinzierl (Technical University of Berlin) discusses how a musician's movement during a performance will impact the notes listeners hear. Finally, Pablo Mirand

Why don't speech recognition systems understand African American English?

Jul 08 2024 17 mins

Most people have encountered speech recognition software in their day-to-day lives, whether through personal digital assistants, auto transcription, or other such modern marvels. As the technology advances, though, it still fails to understand speakers of African American English (AAE). In this episode, we talk to Michelle Cohn (Google Research and University of California Davis) a

Student Paper Competition: Emotions of Drums, Acoustic Black Holes, Ocean Noise, and More!

Jun 24 2024 53 mins

This episode, we talk to a new round of POMA Student Paper Competition winners from the 185th ASA Meeting in Sydney about their exciting research endeavors:- An analysis of how drums convey emotion- A method to assess stress caused by vibration in acoustic black holes- An improved estimator for background noise in underwater signals- A model to help remove distortion from the sound