Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Extraction: Partition and Distribution Coefficients01:14

Extraction: Partition and Distribution Coefficients

5.2K
The distribution law or Nernst's distribution law is the law that governs the distribution of a solute between two immiscible solvents. This law, also known as the partition law, states that if a solute is added to the mixture of two immiscible solvents at a constant temperature, the solute is distributed between the two solvents in such a way that the ratio of solute concentrations in the solvents remains constant at equilibrium.
For extracting a solute from an aqueous phase into an...
5.2K
Propagation of Waves01:07

Propagation of Waves

3.1K
When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
3.1K
State Space Representation01:27

State Space Representation

636
The frequency-domain technique, commonly used in analyzing and designing feedback control systems, is effective for linear, time-invariant systems. However, it falls short when dealing with nonlinear, time-varying, and multiple-input multiple-output systems. The time-domain or state-space approach addresses these limitations by utilizing state variables to construct simultaneous, first-order differential equations, known as state equations, for an nth-order system.
Consider an RLC circuit, a...
636
Interference and Superposition of Waves01:07

Interference and Superposition of Waves

7.2K
When two waves of the same nature occur in the same region simultaneously, they result in interference. Interference of waves implies that the net effect of the waves is the sum of the individual waves' effects. However, it does not imply that the individual waves affect the propagation of other waves.
Interference occurs in mechanical waves, such as sound waves, waves on a string, and surface water waves. Mechanical waves correspond to the physical displacement of particles. Hence,...
7.2K
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

1.9K
Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single...
1.9K
Linear Approximation in Frequency Domain01:26

Linear Approximation in Frequency Domain

409
Linear systems are characterized by two main properties: superposition and homogeneity. Superposition allows the response to multiple inputs to be the sum of the responses to each individual input. Homogeneity ensures that scaling an input by a scalar results in the response being scaled by the same scalar.
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
409

You might also read

Related Articles

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

Sort by
Same author

Corrigendum to "Sensitivity of Lamb waves in viscoelastic polymer plates to surface contamination" [Ultrasonics 149 (2025) 107571].

Ultrasonics·2026
Same author

Streamlined optical training of large-scale modern deep learning architectures with direct feedback alignment.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Sensitivity of Lamb waves in viscoelastic polymer plates to surface contamination.

Ultrasonics·2025
Same author

Reaching the precision limit with tensor-based wavefront shaping.

Nature communications·2024
Same author

Diffuse field cross-correlations: Scattering theory and electromagnetic experiments.

Physical review. E·2021
Same author

Open birdcage coil for head imaging at 7T.

Magnetic resonance in medicine·2021
Same journal

Sibilant differentiation before and after tongue cancer surgery: Acoustics, kinematics and the role of sensorimotor controla).

The Journal of the Acoustical Society of America·2026
Same journal

BioNet-A: Ultrasonic echo representation network for target discrimination using active SONAR.

The Journal of the Acoustical Society of America·2026
Same journal

Empty soft-drink cans and mass-loaded rods: Analogous homework problems from acoustic and mechanical domains.

The Journal of the Acoustical Society of America·2026
Same journal

Erratum: Statistical wave field theory: Anisotropic wave fields under Neumann's boundary condition [J. Acoust. Soc. Am. 159(3), 2265-2280 (2026)].

The Journal of the Acoustical Society of America·2026
Same journal

On the modification of tip leakage noise sources by porous treatment.

The Journal of the Acoustical Society of America·2026
Same journal

An educational opportunity: Acoustics in an empty room.

The Journal of the Acoustical Society of America·2026
See all related articles

Related Experiment Video

Updated: Mar 3, 2026

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
04:32

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

Published on: December 20, 2024

943

Robust source localization from wavefield separation including prior information.

Thibault Nowakowski1, Julien de Rosny1, Laurent Daudet1

  • 1École Supérieure de Physique et de Chimie Industrielles de la ville de Paris, L'université de Recherche Paris Sciences et Lettres, Centre National de la Recherche Scientifique, Institut Langevin, 1 rue Jussieu, 75005 Paris, France.

The Journal of the Acoustical Society of America
|May 4, 2017
PubMed
Summary
This summary is machine-generated.

Strong reverberation challenges source localization. This study enhances wavefield separation projector processing (WSPP) using prior information, enabling precise localization with fewer microphones.

More Related Videos

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
09:09

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

933
Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

7.4K

Related Experiment Videos

Last Updated: Mar 3, 2026

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
04:32

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

Published on: December 20, 2024

943
Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
09:09

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

933
Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

7.4K

Area of Science:

  • Acoustics
  • Signal Processing
  • Computational Physics

Background:

  • Reverberation significantly impacts narrowband source localization accuracy.
  • Existing time-of-arrival methods are susceptible to boundary effects.
  • Wavefield separation projector processing (WSPP) addresses reverberation but requires numerous microphones.

Purpose of the Study:

  • To reduce the microphone requirement for WSPP.
  • To extend WSPP's applicability in reverberant environments.
  • To enable precise source localization with limited sensor arrays.

Main Methods:

  • Modified WSPP using critical distance information.
  • Incorporation of "virtual measurements" with partial room geometry knowledge.
  • Green's function estimation for microphone pairs in weakly inhomogeneous media.

Main Results:

  • Demonstrated precise source localization numerically and experimentally.
  • Significantly reduced the number of microphones needed for effective WSPP.
  • Validated the efficacy of the three proposed WSPP extensions.

Conclusions:

  • The developed methods effectively mitigate the microphone constraint for WSPP.
  • Prior information integration enhances robustness against reverberation.
  • Practical and precise source localization is achievable in challenging acoustic conditions.