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

Sound Waves: Interference

Sound Waves: Interference

Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...

The Cochlea

The Cochlea

The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.

Perceiving Loudness, Pitch, and Location

Perceiving Loudness, Pitch, and Location

The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...

Histogram

Histogram

The histogram is a graphical representation in the x-y form of data distribution in a data set. The horizontal x-axis is labeled with what the data represents (for instance, distance from your home to school). The vertical y-axis is labeled either frequency or relative frequency (or percent frequency or probability).
A histogram graph consists of contiguous (adjoining) boxes. The heights of the bars correspond to frequency values. The graph will have the same shape with respective labels. The...

$Interference and Diffraction$ 02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.

Auditory Perception

Auditory Perception

The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the cochlea, a...

You might also read

Related Articles

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

Sort by

Same author

Cochlear aging after synaptopathic noise: age-noise interactions in hair cell loss and axonal degeneration.

Hearing research·2026

Same author

Acoustic Scene-Aware Processing and Auditory Model-Based Compensation Strategies.

Journal of the Association for Research in Otolaryngology : JARO·2026

Same author

Using more realistic speech material to enhance ecological validity in the Everyday Conversational Danish Sentence Test.

The Journal of the Acoustical Society of America·2026

Same author

Phoneme Perception in Children With Bilateral Cochlear Implants or Hearing Aids in Quiet, Noise, and Reverberation.

Ear and hearing·2026

Same author

A comparison of hearing abilities in memory clinic patients with mild cognitive impairment and cognitively intact older adults.

Journal of Alzheimer's disease : JAD·2026

Same author

Investigating the impact of background noise on collaborative decision-making using an individual-weighted voting model.

Cognitive research: principles and implications·2026

Search research articles

Related Experiment Video

Updated: May 11, 2026

New Framework for Understanding Cross-Brain Coherence in Functional Near-Infrared Spectroscopy (fNIRS) Hyperscanning Studies

New Framework for Understanding Cross-Brain Coherence in Functional Near-Infrared Spectroscopy (fNIRS) Hyperscanning Studies

Published on: October 6, 2023

Binaural dereverberation based on interaural coherence histograms.

Adam Westermann¹, Jörg M Buchholz, Torsten Dau

¹National Acoustic Laboratories, Australian Hearing, 16 University Avenue, Macquarie University, New South Wales 2109, Australia. adam.westermann@nal.gov.au

The Journal of the Acoustical Society of America

|May 10, 2013

Summary

This summary is machine-generated.

This study presents a new binaural dereverberation algorithm using interaural coherence (IC). The advanced method effectively reduces reverberation in large rooms, outperforming previous techniques.

More Related Videos

A Method to Study Adaptation to Left-Right Reversed Audition

A Method to Study Adaptation to Left-Right Reversed Audition

Published on: October 29, 2018

Measurement of the Directional Information Flow in fNIRS-Hyperscanning Data using the Partial Wavelet Transform Coherence Method

Measurement of the Directional Information Flow in fNIRS-Hyperscanning Data using the Partial Wavelet Transform Coherence Method

Published on: September 3, 2021

Related Experiment Videos

Last Updated: May 11, 2026

New Framework for Understanding Cross-Brain Coherence in Functional Near-Infrared Spectroscopy (fNIRS) Hyperscanning Studies

New Framework for Understanding Cross-Brain Coherence in Functional Near-Infrared Spectroscopy (fNIRS) Hyperscanning Studies

Published on: October 6, 2023

A Method to Study Adaptation to Left-Right Reversed Audition

A Method to Study Adaptation to Left-Right Reversed Audition

Published on: October 29, 2018

Measurement of the Directional Information Flow in fNIRS-Hyperscanning Data using the Partial Wavelet Transform Coherence Method

Measurement of the Directional Information Flow in fNIRS-Hyperscanning Data using the Partial Wavelet Transform Coherence Method

Published on: September 3, 2021

Area of Science:

Acoustics
Signal Processing

Background:

Reverberation significantly impacts audio quality and intelligibility.
Existing binaural dereverberation methods have limitations in complex acoustic environments.

Purpose of the Study:

To develop and evaluate a novel binaural dereverberation algorithm.
To improve upon the performance of existing dereverberation techniques.

Main Methods:

Utilized interaural coherence (IC) properties for dereverberation.
Introduced a non-linear sigmoidal coherence-to-gain mapping.
Algorithm adapts to acoustic environments using online coherence statistics.

Main Results:

The proposed algorithm demonstrates stronger dereverberation than the original Allen et al. method.
Performance was evaluated objectively and subjectively.
The coherence-based approach is most effective when direct sound and reverberation are separable.

Conclusions:

The novel algorithm offers enhanced binaural dereverberation.
Particularly effective in large rooms with short source-receiver distances.
Successful in acoustic scenarios with a wide coherence distribution.