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  2. Acoustic wave equation - Wikipedia

    en.wikipedia.org/wiki/Acoustic_wave_equation

    In physics, the acoustic wave equation is a second-order partial differential equation that governs the propagation of acoustic waves through a material medium resp. a standing wavefield. The equation describes the evolution of acoustic pressure p or particle velocity u as a function of position x and time t. A simplified (scalar) form of the ...

  3. Acoustic theory - Wikipedia

    en.wikipedia.org/wiki/Acoustic_theory

    Acoustic theory is a scientific field that relates to the description of sound waves.It derives from fluid dynamics.See acoustics for the engineering approach.. For sound waves of any magnitude of a disturbance in velocity, pressure, and density we have

  4. Acoustic wave - Wikipedia

    en.wikipedia.org/wiki/Acoustic_wave

    An acoustic wave is a mechanical wave that transmits energy through the movements of atoms and molecules. Acoustic waves transmit through fluids in a longitudinal manner (movement of particles are parallel to the direction of propagation of the wave); in contrast to electromagnetic waves that transmit in transverse manner (movement of particles at a right angle to the direction of propagation ...

  5. Absorption (acoustics) - Wikipedia

    en.wikipedia.org/wiki/Absorption_(acoustics)

    The fraction of sound absorbed is governed by the acoustic impedances of both media and is a function of frequency and the incident angle. [2] Size and shape can influence the sound wave's behavior if they interact with its wavelength, giving rise to wave phenomena such as standing waves and diffraction.

  6. Sound energy - Wikipedia

    en.wikipedia.org/wiki/Sound_energy

    In physics, sound energy is a form of energy that can be heard by living things. Only those waves that have a frequency of 16 Hz to 20 kHz are audible to humans. However, this range is an average and will slightly change from individual to individual.

  7. Soundwave - Wikipedia

    en.wikipedia.org/wiki/Soundwave

    Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... Soundwave or Sound Wave may refer to: Sound, ...

  8. Ion acoustic wave - Wikipedia

    en.wikipedia.org/wiki/Ion_acoustic_wave

    In plasma physics, an ion acoustic wave is one type of longitudinal oscillation of the ions and electrons in a plasma, much like acoustic waves traveling in neutral gas. However, because the waves propagate through positively charged ions, ion acoustic waves can interact with their electromagnetic fields , as well as simple collisions.

  9. Acoustic waveguide - Wikipedia

    en.wikipedia.org/wiki/Acoustic_waveguide

    When the wave reaches the end of the transmission line, its behaviour depends on what is present at the end of the line. There are three generalized scenarios: A low impedance load (e.g. leaving the end open in free air) will cause a reflected wave in which the sign of the pressure variation reverses, but the direction of the pressure wave ...

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