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

Perception of Sound Waves

Perception of Sound Waves

The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...

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

A Speech-Segregation Algorithm for Spatial Hearing Aids to Operate With Multiple Sound Sources.

Journal of speech, language, and hearing research : JSLHR·2026

Same author

The Unique Properties and Click Capacity of the Tetrazine Group Enable Tetrazine Allyl Acetate to Serve as a Versatile Bis-Thiol Bioconjugation and Functionalization Agent.

JACS Au·2025

Same author

The impact of the CERTAIN clinical decision support tool for structured intensive care unit admission and rounding is patient sex-independent: a secondary analysis of CERTAIN.

Critical care science·2025

Same author

Antarctic meltwater alters future projections of climate and sea level.

Nature communications·2025

Same author

Salvage colorectal endoscopic submucosal dissection: key questions and future directions behind a significant advance.

Gastrointestinal endoscopy·2025

Same author

Multireader diagnostic performance of MRI-based Node-RADS for pelvic lymph node metastasis in endometrial carcinoma.

European radiology·2025

Search research articles

Related Experiment Video

Updated: Jul 22, 2026

SSVEP-based Experimental Procedure for Brain-Robot Interaction with Humanoid Robots

SSVEP-based Experimental Procedure for Brain-Robot Interaction with Humanoid Robots

Published on: November 24, 2015

Speech Perception with Noise Vocoding and Background Noise: An EEG and Behavioral Study.

Yue Dong¹, Yan Gai²

¹Biomedical Engineering, Parks College of Engineering, Aviation and Technology, Saint Louis University, 3507 Lindell Blvd, St Louis, MO, 63103, USA.

Journal of the Association for Research in Otolaryngology : JARO

|April 14, 2021

Summary

The brain

Keywords:

EEG auditory evoked potentials noise suppression noise vocoding speech intelligibility speech perception

More Related Videos

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Published on: June 29, 2021

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Published on: August 9, 2024

Related Experiment Videos

Last Updated: Jul 22, 2026

SSVEP-based Experimental Procedure for Brain-Robot Interaction with Humanoid Robots

SSVEP-based Experimental Procedure for Brain-Robot Interaction with Humanoid Robots

Published on: November 24, 2015

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Published on: June 29, 2021

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Published on: August 9, 2024

Area of Science:

Neuroscience
Auditory Perception
Speech Processing

Background:

Understanding speech in noisy environments is crucial.
Auditory-evoked potentials (AEPs) offer insights into neural processing of sound.
Physiological markers for speech intelligibility require further investigation.

Purpose of the Study:

To investigate the human brain's physiological response to degraded speech.
To identify auditory-evoked potential (AEP) features correlating with speech intelligibility.
To explore how noise affects neural speech processing.

Main Methods:

Ten normal-hearing subjects performed syllable detection tasks.
Speech syllables were degraded using noise vocoding and background noise.
Electroencephalography (EEG) recorded 32-channel AEPs.

Main Results:

Peak amplitudes (P1, N1, P2) showed varied responses to degradation, with P2 consistently reduced.
Syllable classification accuracy and cross-condition AEP correlation (rcc) decreased with speech quality.
Behavioral speech intelligibility correlated with rcc and early AEP classification in fronto-central areas.

Conclusions:

Speech intelligibility is linked to the brain's ability to maintain consistent neural representations of speech despite noise.
The cross-condition correlation (rcc) of AEPs serves as a reliable physiological predictor of speech intelligibility.
Neural mechanisms for ignoring noise are key to understanding and processing degraded speech.