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

Phasor Arithmetics01:13

Phasor Arithmetics

Phasors and their corresponding sinusoids are interrelated, offering unique insights into the behavior of alternating current (AC) circuits. One way to understand this relationship is through the operations of differentiation and integration in both the time and phasor domains.
When the derivative of a sinusoid is taken in the time domain, it transforms into its corresponding phasor multiplied by j-omega (jω) in the phasor domain, where j is the imaginary unit, and ω is the angular frequency.
Masking and Demasking Agents01:19

Masking and Demasking Agents

EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on the metal...
Interference: Path Lengths01:10

Interference: Path Lengths

Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
Complex Numbers01:29

Complex Numbers

The real number system cannot represent the square root of a negative number, which restricts solutions for certain equations, such as quadratics with negative discriminants. To address this, the complex number system was developed, introducing the imaginary unit i, where i = √(-1). This extension allows for the representation of all roots, including those involving negative radicands.A complex number is written in the form x + yi, where x and y are real numbers. Here, x represents the real...
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Properties of Fourier series II01:21

Properties of Fourier series II

Time scaling of signals is a crucial concept in signal processing that affects the Fourier series representation without altering its coefficients. The process modifies the fundamental frequency, thereby changing how the series represents the signal over time. This principle is essential in various applications, including audio and image processing, where signal manipulation is frequent. Understanding function symmetries is fundamental to simplifying the Fourier series.
A function f(t) is...

You might also read

Related Articles

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

Sort by
Same author

Relationship Between Dynamic Pitch Sensitivity and Vocal Emotion Recognition in Different Listening Conditions in Older Listeners.

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

Effect of ambisonic order on sound localization in the horizontal plane.

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

On manipulating motion gain in immersive virtual environments: An unidentified source of external noise and a new psychometric function.

Journal of vision·2026
Same author

Erratum: Effect of ambisonic order on spatial release from masking [J. Acoust. Soc. Am. 156(4), 2169-2176 (2024)].

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

Acoustic analyses of the RAVDESS corpus of emotional stimuli.

JASA express letters·2026
Same author

Cue-weighting for emotion perception by pediatric/young adult and postlingually deaf adult cochlear implantees, and typically hearing counterparts.

The Journal of the Acoustical Society of America·2025
Same journal

Electrophysiologically-based electrode selection has the potential to improve speech perception in cochlear-implant users.

Hearing research·2026
Same journal

Multivariate prediction of conductive dysfunction in well and NICU newborns using wideband acoustic immittance with acoustic reflex tests.

Hearing research·2026
Same journal

TGF-β signaling regulates flat epithelium formation in severely injured adult mouse utricle through epithelial-mesenchymal transition.

Hearing research·2026
Same journal

Membrane scaffolding in auditory hair cells - a molecular tightrope walk enables lateral wall stiffness and flexibility.

Hearing research·2026
Same journal

Speech-in-noise recognition during hearing protector use: Human performance and acoustic prediction.

Hearing research·2026
Same journal

Estimation of hair cell loss from audiograms.

Hearing research·2026
See all related articles

Related Experiment Video

Updated: May 7, 2026

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
05:38

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

Published on: June 29, 2021

Phase effects in masking by harmonic complexes: speech recognition.

Mickael L D Deroche1, John F Culling, Monita Chatterjee

  • 1Department of Otolaryngology, Johns Hopkins University School of Medicine, 818 Ross Research Building, 720 Rutland Avenue, Baltimore, MD 21205, USA.

Hearing Research
|October 1, 2013
PubMed
Summary
This summary is machine-generated.

Harmonic complexes with modulated envelopes mask speech less effectively. This occurs because the ear amplifies tones in the masker

More Related Videos

Memorization-Based Training and Testing Paradigm for Robust Vocal Identity Recognition in Expressive Speech Using Event-Related Potentials Analysis
05:48

Memorization-Based Training and Testing Paradigm for Robust Vocal Identity Recognition in Expressive Speech Using Event-Related Potentials Analysis

Published on: August 9, 2024

Combined Invasive Subcortical and Non-invasive Surface Neurophysiological Recordings for the Assessment of Cognitive and Emotional Functions in Humans
08:25

Combined Invasive Subcortical and Non-invasive Surface Neurophysiological Recordings for the Assessment of Cognitive and Emotional Functions in Humans

Published on: May 19, 2016

Related Experiment Videos

Last Updated: May 7, 2026

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
05:38

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

Published on: June 29, 2021

Memorization-Based Training and Testing Paradigm for Robust Vocal Identity Recognition in Expressive Speech Using Event-Related Potentials Analysis
05:48

Memorization-Based Training and Testing Paradigm for Robust Vocal Identity Recognition in Expressive Speech Using Event-Related Potentials Analysis

Published on: August 9, 2024

Combined Invasive Subcortical and Non-invasive Surface Neurophysiological Recordings for the Assessment of Cognitive and Emotional Functions in Humans
08:25

Combined Invasive Subcortical and Non-invasive Surface Neurophysiological Recordings for the Assessment of Cognitive and Emotional Functions in Humans

Published on: May 19, 2016

Area of Science:

  • Auditory Neuroscience
  • Psychoacoustics
  • Speech Perception

Background:

  • Harmonic complexes with modulated temporal envelopes on the basilar membrane (BM) are less effective at masking tones compared to those with flat envelopes.
  • This phenomenon is attributed to the non-linear active gain of the BM, which amplifies low-level tones in the dips of modulated masker envelopes.
  • The current study investigates if a similar masking release effect occurs in speech recognition.

Purpose of the Study:

  • To examine the impact of masker temporal envelope modulation on speech reception thresholds (SRTs).
  • To compare the effectiveness of sine phase (SP) versus random phase (RP) harmonic complexes as maskers in speech recognition.

Main Methods:

  • Speech reception thresholds (SRTs) were measured using a target voice masked by harmonic complexes.
  • Maskers varied in fundamental frequency (F0) at 50, 100, or 200 Hz and partial phase (sine phase or random phase).
  • Masker spectral profiles were either flat or speech-shaped at a moderate sound level (65 dB SPL).

Main Results:

  • SRTs were significantly lower for sine phase (SP) maskers compared to random phase (RP) maskers at a 50-Hz F0.
  • The difference in SRTs between SP and RP maskers diminished at a 100-Hz F0 and reversed slightly at a 200-Hz F0.
  • These results held true regardless of target voice gender or masker spectral profile.

Conclusions:

  • The 'listening in the dips' phenomenon, observed with artificial stimuli, plays a limited role in speech recognition with harmonic maskers.
  • Masker temporal envelope modulation has a frequency-dependent effect on speech masking, with greater release at lower F0s.
  • The findings suggest that the non-linear processing of the auditory system influences speech perception in complex masker environments.