Related Experiment Video
Updated: Jun 12, 2026
06:01
Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
Published on: December 9, 2022
Estimating loudness growth from tone-burst evoked responses
1Department of Electrical and Computer Engineering, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, USA. ikarosilva@ieee.org
The Journal of the Acoustical Society of America
|June 17, 2010
Summary
This study developed an objective method using auditory brainstem responses (ABRs) to estimate frequency-specific loudness growth. The results show this ABR-based approach is comparable to traditional psychoacoustical methods for assessing loudness perception.
Area of Science:
- Auditory Neuroscience
- Psychoacoustics
- Biomedical Engineering
Background:
- Auditory brainstem responses (ABRs) show promise in correlating with loudness perception.
- Previous research primarily used click stimuli, necessitating studies with frequency-specific stimuli.
- Further investigation is needed to derive detailed loudness functions from ABR recordings.
Purpose of the Study:
- To develop an objective procedure for segmenting tone-burst ABR features.
- To assess the feasibility of estimating frequency-specific loudness growth using ABR data.
- To evaluate the impact of noise control and parametric fitting on ABR-based loudness estimation accuracy.
Main Methods:
- Developed an objective ABR signal processing technique.
- Recorded tone-burst ABRs at 1 and 4 kHz in normal-hearing listeners.
- Analyzed ABR features to estimate loudness growth functions.
- Controlled for residual noise and applied parametric fitting.
Main Results:
- The developed objective procedure accurately estimates loudness growth functions.
- The mean-square error of ABR-derived loudness estimation is comparable to standard psychoacoustical methods.
- The study successfully demonstrated the feasibility of frequency-specific loudness estimation using ABRs.
Conclusions:
- Objective ABR analysis offers a viable alternative to psychoacoustical methods for estimating loudness growth.
- The developed method provides a tool for objective, frequency-specific loudness assessment.
- Publicly available data facilitates further research in auditory perception and ABR applications.
Related Concept Videos
01:21Perceiving 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...
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...
00:53Sound Intensity Level
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 hence a...
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 hence a...
00:58Sound Intensity
The loudness of a sound source is related to how energetically the source is vibrating, consequently making the molecules of the propagation medium vibrate. To measure the loudness of a source, the physical quantity of interest is the intensity. This is defined as the energy emitted per unit of time per unit of area perpendicular to the sound wave's propagation direction. Since the total energy is greater if the source vibrates for a longer duration and over a larger area, dividing the emitted...
01:01Perception 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...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
01:05Intensity and Pressure of Sound Waves
The intensity of sound waves can be related to displacement and pressure amplitudes by using their wave expressions and the definition of intensity. The critical step to achieve this is to write the power delivered by the particles on the wave as the product of force and velocity and simplify the force per unit area as the pressure. The velocity of the medium's particles can be derived from the displacement.
Unlike the time average of a sinusoidal term, which is zero since it is positive and...
Unlike the time average of a sinusoidal term, which is zero since it is positive and...