Related Experiment Video
Updated: Oct 18, 2025

06:04
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
521
Hearing Aid Technology to Improve Speech Intelligibility in Noise
1Department of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, Indiana.
Seminars in Hearing
|October 1, 2021
Summary
Hearing aids struggle with speech-in-noise challenges. This issue explores advanced technologies like machine learning and directional microphones to improve hearing aid performance in noisy environments.
Area of Science:
- Audiology
- Hearing Science
- Engineering
Background:
- Speech-in-noise perception is challenging for normal-hearing individuals and significantly more so for those with hearing loss.
- Difficulty understanding speech in noise is a primary driver for seeking hearing assistance, yet many hearing aid users continue to struggle despite amplification.
- Hearing aid manufacturers are developing advanced solutions, but understanding and implementing these technologies involves complex tradeoffs.
Purpose of the Study:
- To educate audiology, hearing science, and engineering professionals and students on advanced technologies for overcoming speech-in-noise difficulties.
- To provide insights into various technological approaches used in hearing aids to combat environmental and wind noise.
- To bridge the communication gap between technological development and clinical application of hearing aid solutions.
Main Methods:
- Exploration of technologies including classification, directional microphones, binaural signal processing, beamformers, and motion sensors.
- Discussion of machine learning applications in enhancing hearing aid performance for speech understanding in noise.
- Insights from leading researchers and engineers from major hearing aid manufacturers.
Main Results:
- This issue presents a comprehensive overview of cutting-edge hearing aid technologies designed to improve speech intelligibility in noisy environments.
- The contributing experts share in-depth knowledge on the development and implementation of these advanced solutions.
- The content aims to enhance the understanding and application of these technologies by clinicians and researchers.
Conclusions:
- Advanced technologies offer promising solutions for the persistent challenge of understanding speech in noise for hearing aid users.
- Effective implementation and fine-tuning of these technologies require a deeper understanding of their underlying principles and tradeoffs.
- Continued collaboration between researchers, engineers, and clinicians is crucial for optimizing hearing aid technology and improving user outcomes.
Keywords:
beamformersbinaural signal processingclassificationdirectional microphoneshealthablehearablemachine learningmotion sensorsspeech-in-noisewind noiseMore Related Videos
Related Concept Videos
Hearing
54.1K
When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
54.1K
Design Example
401
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...
401
Perceiving Loudness, Pitch, and Location
546
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...
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...
546
Sound Intensity Level
4.4K
Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
4.4K

