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  2. Sound - Wikipedia

    en.wikipedia.org/wiki/Sound

    Sound is defined as "(a) Oscillation in pressure, stress, particle displacement, particle velocity, etc., propagated in a medium with internal forces (e.g., elastic or viscous), or the superposition of such propagated oscillation.

  3. Acoustics - Wikipedia

    en.wikipedia.org/wiki/Acoustics

    Acoustics is defined by ANSI/ASA S1.1-2013 as "(a) Science of sound, including its production, transmission, and effects, including biological and psychological effects. (b) Those qualities of a room that, together, determine its character with respect to auditory effects."

  4. Ultrasound - Wikipedia

    en.wikipedia.org/wiki/Ultrasound

    Ultrasound is sound with frequencies greater than 20 kilohertz. [1] This frequency is the approximate upper audible limit of human hearing in healthy young adults. The physical principles of acoustic waves apply to any frequency range, including ultrasound.

  5. The sounds of science - AOL

    www.aol.com/news/sounds-science-142655858.html

    Scaletti agreed that sound has the power to convey a lot of meaning. "People know that because of language," she said, "but they think everything else is music." That's why she's carving a new ...

  6. Sound energy - Wikipedia

    en.wikipedia.org/wiki/Sound_energy

    Sound is a mechanical wave and as such consists physically in oscillatory elastic compression and in oscillatory displacement of a fluid. Therefore, the medium acts as storage for both potential and kinetic energy .

  7. Loudness - Wikipedia

    en.wikipedia.org/wiki/Loudness

    The horizontal axis shows frequency in Hertz. In acoustics, loudness is the subjective perception of sound pressure.More formally, it is defined as the "attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud". [1]

  8. Sound quality - Wikipedia

    en.wikipedia.org/wiki/Sound_quality

    Sound quality is typically an assessment of the accuracy, fidelity, or intelligibility of audio output from an electronic device. Quality can be measured objectively, such as when tools are used to gauge the accuracy with which the device reproduces an original sound; or it can be measured subjectively, such as when human listeners respond to ...

  9. Acoustic ecology - Wikipedia

    en.wikipedia.org/wiki/Acoustic_ecology

    The World Forum for Acoustic Ecology is an international collective of people and organizations who study the world's soundscapes. [6] There are eight groups that make up the World Forum for Acoustic Ecology: the Australian Forum for Acoustic Ecology, the Canadian Association for Acoustic Ecology, the Finnish Society for Acoustic Ecology, the Hellenic Society for Acoustic Ecology, the Japanese ...