Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Deflection of a Beam

Deflection of a Beam

Accurately determining beam deflection and slope under various loading conditions in structural engineering is crucial for ensuring safety and structural integrity. Singularity functions offer a streamlined approach to analyzing beams, especially when multiple loading functions complicate the bending moment equation.
Singularity functions, described in an earlier lesson, are powerful mathematical tools that represent discontinuities within a function commonly encountered in structural loading...

Plane Electromagnetic Waves II

Plane Electromagnetic Waves II

Consider a plane wavefront traveling in position x-direction with a constant speed. This wavefront can be utilized to obtain the relationship between electric and magnetic fields with the help of Faraday's law.

Plane Electromagnetic Waves I

Plane Electromagnetic Waves I

The existence of combined electric and magnetic fields that propagate through space as electromagnetic (EM) waves is the most significant prediction of Maxwell's equations. As Maxwell's equations hold in free space, the predicted electromagnetic waves do not require a medium for their propagation. An EM wave comprises an electric field, defined as the force per charge on a stationary charge, and a magnetic field, which is the force per charge on a moving charge.
The EM field is assumed to be a...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Active acoustic enhancement systems: A review.

The Journal of the Acoustical Society of America·2026

Same author

An experimental study on transfer function estimation using acoustic modelling and singular value decomposition.

The Journal of the Acoustical Society of America·2021

Same author

Novel RAF Fusions in Pediatric Low-Grade Gliomas Demonstrate MAPK Pathway Activation.

Journal of neuropathology and experimental neurology·2021

Same author

A comparison between two modal domain methods for personal audio reproduction.

The Journal of the Acoustical Society of America·2020

Same author

Limits of Perceived Audio-Visual Spatial Coherence as Defined by Reaction Time Measurements.

Frontiers in neuroscience·2019

Same author

Impact of loudspeaker nonlinear distortion on personal sound zones.

The Journal of the Acoustical Society of America·2018

Same journal

Interaction of near-wall bubble arrays with acoustic waves induced by an oscillating rigid wall.

The Journal of the Acoustical Society of America·2026

Same journal

Ultra-broadband underwater acoustic projector based on transverse resonance orthogonal beam (TROB) mode and acoustic matching layer technique.

The Journal of the Acoustical Society of America·2026

Same journal

Fine-scale quantitative analysis of bowhead whale (Balaena mysticetus) song shows varying stability of song types.

The Journal of the Acoustical Society of America·2026

Same journal

High-resolution depth estimation for multiple wideband sources in deep sea via sparse Bayesian learninga).

The Journal of the Acoustical Society of America·2026

Same journal

Depression markers in speech: An approach based on tract variables dynamics.

The Journal of the Acoustical Society of America·2026

Same journal

The oyster toadfish (Opsanus tau) alters active and diurnal calling amid vessel noise in New York City.

The Journal of the Acoustical Society of America·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Apr 22, 2026

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

Published on: July 26, 2016

Personal audio with a planar bright zone.

Philip Coleman¹, Philip J B Jackson¹, Marek Olik¹

¹Centre for Vision, Speech and Signal Processing, University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.

The Journal of the Acoustical Society of America

|October 18, 2014

Summary

This summary is machine-generated.

This study introduces a new method for creating multiple headphone-free sound zones. Planarity control enhances audio contrast and sound quality in personal audio systems.

More Related Videos

Three-dimensional Optical-resolution Photoacoustic Microscopy

Three-dimensional Optical-resolution Photoacoustic Microscopy

Published on: May 3, 2011

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles

Published on: March 6, 2016

Related Experiment Videos

Last Updated: Apr 22, 2026

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

Published on: July 26, 2016

Three-dimensional Optical-resolution Photoacoustic Microscopy

Three-dimensional Optical-resolution Photoacoustic Microscopy

Published on: May 3, 2011

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles

Published on: March 6, 2016

Area of Science:

Acoustical signal processing
Audio engineering
Psychoacoustics

Background:

Headphone-free personal audio relies on creating distinct sound zones.
Existing methods struggle with phase control, leading to self-cancellation and reduced zone separation.
Least-squares methods compromise zone contrast and frequency range.

Purpose of the Study:

To develop a novel method for reproducing planar bright zones for improved sound zone separation.
To address limitations in existing sound zone reproduction techniques, particularly regarding phase control and contrast.
To enhance the quality and intelligibility of personal audio programs in multi-zone environments.

Main Methods:

Introduced 'planarity control' to constrain sound energy to a narrow angular range, projecting it spatially.
Utilized a circular loudspeaker array surrounding two target zones for simulations and practical measurements.
Compared the proposed method against least-squares and contrast maximization approaches.

Main Results:

Planarity control demonstrated superior contrast compared to the least-squares method.
The new approach achieved better planarity than contrast maximization techniques.
Practical measurements confirmed simulation results in a real-world acoustic environment.

Conclusions:

Planarity control offers a significant improvement for headphone-free sound zone reproduction.
The method effectively enhances zone contrast and sound energy focus.
This technique advances acoustical signal processing for personalized audio experiences.