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Related Concept Videos

Perception of Sound Waves01:01

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...
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...
Intensity and Pressure of Sound Waves01:05

Intensity 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...
Beats01:09

Beats

The study of music provides many examples of the superposition of waves and the constructive and destructive interference that occurs. Very few examples of music being performed consist of a single source playing a single frequency for an extended period of time. A single frequency of sound for an extended period might be monotonous to the point of irritation, similar to the unwanted drone of an aircraft engine or a loud fan. Music is pleasant and exciting due to mixing the changing frequencies...
Time and frequency -Domain Interpretation of PI Control01:27

Time and frequency -Domain Interpretation of PI Control

Proportional-Integral (PI) controllers are essential in many control systems to improve stability and performance. They are commonly used in everyday devices like thermostats to enhance system damping and reduce steady-state error. When the zero in the controller's transfer function is optimally placed, the system benefits significantly in terms of stability and accuracy.
Acting as a low-pass filter, the PI controller slows the system's response and extends settling times. This requires careful...
Perceiving Loudness, Pitch, and Location01:21

Perceiving 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...

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An improved nerve-muscle preparation stimulator for student use.

The Journal of physiology·2010
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Series or parallel filtering in the cochlea?

The Journal of the Acoustical Society of America·1981
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Auditory cortex and the pitch of complex tones.

The Journal of the Acoustical Society of America·1980
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Periodicity, pulse interval and pitch.

Audiology : official organ of the International Society of Audiology·1979
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Auditory cortical lesions and the precedence effect in a four-choice situation [proceedings].

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The object of the sensory cortex.

Brain, behavior and evolution·1979

Related Experiment Video

Updated: Jul 16, 2026

Uncovering Beat Deafness: Detecting Rhythm Disorders with Synchronized Finger Tapping and Perceptual Timing Tasks
09:04

Uncovering Beat Deafness: Detecting Rhythm Disorders with Synchronized Finger Tapping and Perceptual Timing Tasks

Published on: March 16, 2015

Theory and experiment in so-called pulse-interval pitch

I C Whitfield

    Audiology : Official Organ of the International Society of Audiology
    |January 1, 1981
    PubMed
    Summary

    Moore criticized findings on auditory nerve fibers and perceived pitch. His criticism was based on an unproven experimental assumption, challenging previous conclusions about pitch perception.

    Area of Science:

    • Auditory Neuroscience
    • Psychoacoustics
    • Neurophysiology

    Background:

    • The relationship between auditory nerve fiber activity and pitch perception is a key area in auditory neuroscience.
    • Previous research explored the role of interpulse intervals in encoding pitch information.

    Purpose of the Study:

    • To critically evaluate Moore's [1980] criticism of Whitfield's [1979] conclusions regarding auditory nerve fiber responses and pitch perception.
    • To examine the validity of the assumptions underlying Moore's critique.

    Main Methods:

    • Analysis of experimental data from studies using alternating pulsatile stimuli.
    • Evaluation of theoretical assumptions made in auditory perception models.

    Main Results:

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    The Power of Interstimulus Interval for the Assessment of Temporal Processing in Rodents

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    Last Updated: Jul 16, 2026

    Uncovering Beat Deafness: Detecting Rhythm Disorders with Synchronized Finger Tapping and Perceptual Timing Tasks
    09:04

    Uncovering Beat Deafness: Detecting Rhythm Disorders with Synchronized Finger Tapping and Perceptual Timing Tasks

    Published on: March 16, 2015

    A Two-interval Forced-choice Task for Multisensory Comparisons
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    A Two-interval Forced-choice Task for Multisensory Comparisons

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    The Power of Interstimulus Interval for the Assessment of Temporal Processing in Rodents
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    The Power of Interstimulus Interval for the Assessment of Temporal Processing in Rodents

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    • Moore's criticism of Whitfield's findings on interpulse intervals and perceived pitch was found to be based on an unsubstantiated assumption.
    • The experimental evidence did not support Moore's critique regarding the correspondence between nerve fiber activity and pitch.

    Conclusions:

    • The original findings by Whitfield regarding the lack of correspondence between predominant interpulse intervals and perceived pitch remain valid.
    • Moore's critique did not invalidate the experimental conclusions due to a flawed underlying assumption.