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  2. Acoustic quieting - Wikipedia

    en.wikipedia.org/wiki/Acoustic_quieting

    Sound reflections: by limiting the reflection using many methods, e.g. by using acoustic absorption (deadening) materials, trapping the sound, opening a "window" to let sound out, etc. By analyzing the entire sequence of events, from the source to the observer, an acoustic engineer can provide many ways to quieten the machine.

  3. Noise control - Wikipedia

    en.wikipedia.org/wiki/Noise_control

    Using a combination of sound absorption materials, arrays of microphones and speakers, and a digital processor, a restaurant operator can use a tablet computer to selectively control noise levels at different places in the restaurant: the microphone arrays pick up sound and send it to the digital processor, which controls the speakers to output ...

  4. Soundproofing - Wikipedia

    en.wikipedia.org/wiki/Soundproofing

    A pair of headphones being tested inside an anechoic chamber for soundproofing. Soundproofing is any means of impeding sound propagation.There are several methods employed including increasing the distance between the source and receiver, decoupling, using noise barriers to reflect or absorb the energy of the sound waves, using damping structures such as sound baffles for absorption, or using ...

  5. Acoustic panel - Wikipedia

    en.wikipedia.org/wiki/Acoustic_panel

    An acoustic board is a board made from sound absorbing materials, designed to provide sound insulation. [3] [4] Between two outer walls sound absorbing material is inserted and the wall is porous. Thus, when sound passes through an acoustic board, the intensity of sound is decreased. The loss of sound energy is balanced by producing heat energy.

  6. Anechoic chamber - Wikipedia

    en.wikipedia.org/wiki/Anechoic_chamber

    360-degree image of an acoustic anechoic chamber 360-degree image of an electromagnetic anechoic chamber. An anechoic chamber (an-echoic meaning "non-reflective" or "without echoes") is a room designed to stop reflections or echoes of either sound or electromagnetic waves.

  7. Acoustic foam - Wikipedia

    en.wikipedia.org/wiki/Acoustic_foam

    Acoustic foam tiles are suited to placing on sonically reflective surfaces to act as sound absorbers, thus enhancing or changing the sound properties of a room. [ 11 ] This type of sound absorption is different from soundproofing, which is typically used to keep sound from escaping or entering a room rather than changing the properties of sound ...

  8. Damping factor - Wikipedia

    en.wikipedia.org/wiki/Damping_factor

    Damping factor with an 8 Ω load becomes more than 50 when this control is set to NORMAL. Likewise, it is 5 at MEDIUM position, and 1 at SOFT position. It enables choosing the speaker sound that one prefers. Damping is also a concern in guitar amplifiers (an application in which controlled distortion is desirable) and low damping can be better.

  9. Damping (music) - Wikipedia

    en.wikipedia.org/wiki/Damping_(music)

    Damping is a technique in music for altering the sound of a musical instrument by reducing oscillations or vibrations. Damping methods are used for a number of instruments. Damping methods are used for a number of instruments.