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Related Concept Videos

Sample Handling01:02

Sample Handling

Transportation of samples from the collection point to the laboratory, as well as storage and preservation techniques, are crucial for maintaining sample integrity and ensuring accurate and reliable test results.
Samples should be transported carefully from collection points to the laboratory. They should be properly sealed and clearly labeled to prevent cross-contamination. To preserve the sample integrity, optimal temperature conditions during transport are essential. This could involve using...
Design Example: Vintage Mixing Console01:17

Design Example: Vintage Mixing Console

A sound engineer at a music company recently encountered a problem. The output from their newly acquired studio's vintage mixing console was too low for the requirements of modern recording equipment. To rectify this situation, the engineer decided to design an audio pre-amplifier using an operational amplifier (op-amp) to boost the signal level.
The specifications for the pre-amplifier were clear. It needed to amplify the audio signal by a factor of 10, have an input impedance above 10...
Crossover Experiments01:16

Crossover Experiments

Crossover experiments, also called the repeated-measurements design, is a study design in which all experimental units are exposed to all treatments in different periods. Crossover experiments are generally used in psychology, the pharmaceutical industry, agriculture, and medicine.
Crossover designs are performed even with smaller sample sizes since the samples can act as their controls. These are better than simple randomized trials since patients are exposed to all the treatments.
Sound as Pressure Waves01:17

Sound as Pressure Waves

Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
The pressure fluctuation depends on the difference in displacements between the successive points in the...
Hearing01:31

Hearing

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.
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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Related Experiment Video

Updated: May 27, 2026

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
04:32

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

Published on: December 20, 2024

Implementing Audio-CASI on Windows' Platforms.

Philip C Cooley, Charles F Turner

    Computers in Human Behavior
    |November 15, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Upgrading Audio computer-assisted self interviewing (Audio-CASI) systems to Windows platforms enhances video control and audio device compatibility. This advancement improves survey data quality, especially for sensitive topics, despite higher system requirements.

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    Area of Science:

    • Computer Science
    • Survey Methodology
    • Human-Computer Interaction

    Background:

    • Audio computer-assisted self interviewing (Audio-CASI) improves data quality for sensitive topics.
    • Early DOS-based Audio-CASI systems had limitations in video presentation control.

    Purpose of the Study:

    • To adapt and evaluate Audio-CASI systems on Microsoft Windows 3.1 and Windows 95 platforms.
    • To assess the improvements in video control and audio device compatibility.

    Main Methods:

    • Adaptation of existing DOS-based Audio-CASI software to Windows environments.
    • Comparative analysis of system performance and user control between DOS and Windows versions.

    Main Results:

    • Windows-based Audio-CASI offers superior control over video question presentation.
    • Enhanced compatibility with a wider range of audio devices was achieved.
    • Increased system requirements (RAM, hard disk space) were noted.

    Conclusions:

    • Windows-based Audio-CASI systems provide significant advantages for survey data collection, particularly for sensitive information.
    • While system requirements are higher, the benefits outweigh the costs for new or small-scale upgrades.