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

Difference from Background: Limit of Detection01:05

Difference from Background: Limit of Detection

The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
The LOD indicates the presence or absence...
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...
Sound Waves: Interference00:53

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...
Aliasing01:18

Aliasing

Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original signal...
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...
Design Example01:23

Design Example

The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from 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 prediction model based on codec modeling and transformer decoding.

Computer speech & language·2026
Same author

A Molecular Trimming Strategy for Hypoxia-Tolerant Photosensitizers With Enhanced cGAS-STING Activation.

Angewandte Chemie (International ed. in English)·2026
Same author

Towards decoupling frontend enhancement and backend recognition in monaural robust ASR.

Computer speech & language·2026
Same author

Efficacy of SWIM technology combined with direct aspiration first pass technique for large vessel occlusion in acute ischemic stroke.

American journal of translational research·2026
Same author

Manipulating RTP properties of the same organic molecule by polymorphic engineering.

Chemical communications (Cambridge, England)·2025
Same author

Confined Growth of 2D Covalent Organic Framework Nanosheets with Controlled Thickness for Osmotic Energy Conversion.

Small (Weinheim an der Bergstrasse, Germany)·2025

Related Experiment Video

Updated: Jun 24, 2026

Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
14:05

Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses

Published on: January 23, 2017

Speech intelligibility in background noise with ideal binary time-frequency masking.

DeLiang Wang1, Ulrik Kjems, Michael S Pedersen

  • 1Department of Computer Science & Engineering and Center for Cognitive Science, The Ohio State University, Columbus, Ohio 43210, USA.

The Journal of the Acoustical Society of America
|April 10, 2009
PubMed
Summary

Ideal binary masking significantly improves speech intelligibility for both normal-hearing and hearing-impaired listeners. This speech enhancement technique benefits hearing-impaired individuals more, especially in complex noise environments.

More Related Videos

fMRI Mapping of Brain Activity Associated with the Vocal Production of Consonant and Dissonant Intervals
11:15

fMRI Mapping of Brain Activity Associated with the Vocal Production of Consonant and Dissonant Intervals

Published on: May 23, 2017

A Two-interval Forced-choice Task for Multisensory Comparisons
07:13

A Two-interval Forced-choice Task for Multisensory Comparisons

Published on: November 9, 2018

Related Experiment Videos

Last Updated: Jun 24, 2026

Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
14:05

Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses

Published on: January 23, 2017

fMRI Mapping of Brain Activity Associated with the Vocal Production of Consonant and Dissonant Intervals
11:15

fMRI Mapping of Brain Activity Associated with the Vocal Production of Consonant and Dissonant Intervals

Published on: May 23, 2017

A Two-interval Forced-choice Task for Multisensory Comparisons
07:13

A Two-interval Forced-choice Task for Multisensory Comparisons

Published on: November 9, 2018

Area of Science:

  • Auditory Neuroscience
  • Signal Processing
  • Speech Perception

Background:

  • Speech intelligibility is often degraded by background noise.
  • Signal separation techniques aim to enhance speech clarity.
  • Ideal binary masking (IBM) is a method for separating target speech from noise.

Purpose of the Study:

  • To evaluate the impact of ideal binary masking on speech intelligibility.
  • To compare the benefits of IBM for normal-hearing (NH) and hearing-impaired (HI) listeners.
  • To investigate the influence of different noise types and frequency ranges on IBM effectiveness.

Main Methods:

  • Two experiments were conducted using ideal binary masking.
  • Speech intelligibility was assessed using speech-reception threshold measures.
  • Listeners included both NH and HI participants exposed to various background noises (cafeteria, speech-shaped noise).
  • Experiment 2 specifically examined low-frequency versus high-frequency masking.

Main Results:

  • Ideal binary masking significantly reduced speech-reception thresholds for both NH and HI listeners.
  • The benefit of IBM was greater in cafeteria noise compared to speech-shaped noise.
  • Hearing-impaired listeners showed greater improvements with IBM than normal-hearing listeners, nearly equalizing performance in noise.
  • Low-frequency ideal binary masking provided larger intelligibility gains than high-frequency masking, particularly for HI listeners.

Conclusions:

  • Ideal binary masking is an effective speech enhancement strategy.
  • IBM offers significant advantages for hearing-impaired individuals in noisy listening conditions.
  • Frequency-dependent benefits of IBM suggest targeted applications for hearing aid technology.
  • Findings inform advancements in computational auditory scene analysis and hearing aid design.