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  2. Longitudinal wave - Wikipedia

    en.wikipedia.org/wiki/Longitudinal_wave

    "Longitudinal waves" and "transverse waves" have been abbreviated by some authors as "L-waves" and "T-waves", respectively, for their own convenience. [1] While these two abbreviations have specific meanings in seismology (L-wave for Love wave [2] or long wave [3]) and electrocardiography (see T wave), some authors chose to use "ℓ-waves" (lowercase 'L') and "t-waves" instead, although they ...

  3. Ultrasonic horn - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_horn

    Conventional Converging Ultrasonic Horn, produced by Industrial Sonomechanics, LLC [1] Full-wave Barbell Ultrasonic Horn, produced by Industrial Sonomechanics, LLC [1]. An ultrasonic horn (also known as acoustic horn, sonotrode, acoustic waveguide, ultrasonic probe) is a tapering metal bar commonly used for augmenting the oscillation displacement amplitude provided by an ultrasonic transducer ...

  4. Wikipedia:Free sound resources - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Free_sound_resources

    Independent, unique sound library with royalty free & free sound effects - for video, sound design, music productions and more. CC0, CC BY Gfx Sounds: Yes Yes Sound library for professional and free sound effects downloads. CC0, CC BY Free To Use Sounds: Yes Yes Sound effects library with hiqh quality field recordings from all around the world.

  5. Neural encoding of sound - Wikipedia

    en.wikipedia.org/wiki/Neural_encoding_of_sound

    Amplitude is the size (magnitude) of the pressure variations in a sound wave, and primarily determines the loudness with which the sound is perceived. In a sinusoidal function such as C sin ⁡ ( 2 π f t ) {\displaystyle C\sin(2\pi ft)} , C represents the amplitude of the sound wave.

  6. Temporal envelope and fine structure - Wikipedia

    en.wikipedia.org/wiki/Temporal_envelope_and_fine...

    Temporal envelope (ENV) and temporal fine structure (TFS) are changes in the amplitude and frequency of sound perceived by humans over time. These temporal changes are responsible for several aspects of auditory perception, including loudness, pitch and timbre perception and spatial hearing.

  7. Acoustic resonance - Wikipedia

    en.wikipedia.org/wiki/Acoustic_resonance

    However, if a piece of metal is placed on a prong, the effect dampens, and the excitations become less and less pronounced as resonance isn't achieved as effectively. Acoustic resonance is a phenomenon in which an acoustic system amplifies sound waves whose frequency matches one of its own natural frequencies of vibration (its resonance ...

  8. Beat (acoustics) - Wikipedia

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

    As the two tones gradually approach unison, the beating slows down and may become so slow as to be imperceptible. As the two tones get further apart, their beat frequency starts to approach the range of human pitch perception, [1] the beating starts to sound like a note, and a combination tone is produced.

  9. 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 ...