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  2. Acoustic enhancement - Wikipedia

    en.wikipedia.org/wiki/Acoustic_enhancement

    Acoustic enhancement is a subtle type of sound reinforcement system used to augment direct, reflected, or reverberant sound. While sound reinforcement systems are usually used to increase the sound level of the sound source (like a person speaking into a microphone, or musical instruments in a pop ensemble), acoustic enhancement systems are typically used to increase the acoustic energy in the ...

  3. Room modes - Wikipedia

    en.wikipedia.org/wiki/Room_modes

    Room modes are the collection of resonances that exist in a room when the room is excited by an acoustic source such as a loudspeaker. Most rooms have their fundamental resonances in the 20 Hz to 200 Hz region, each frequency being related to one or more of the room's dimensions or a divisor thereof. These resonances affect the low-frequency ...

  4. Room acoustics - Wikipedia

    en.wikipedia.org/wiki/Room_acoustics

    Room acoustics is a subfield of acoustics dealing with the behaviour of sound in enclosed or partially-enclosed spaces. The architectural details of a room influences the behaviour of sound waves within it, with the effects varying by frequency.

  5. Sound power - Wikipedia

    en.wikipedia.org/wiki/Sound_power

    Sound power or acoustic power is the rate at which sound energy is emitted, reflected, transmitted or received, per unit time. [1] It is defined [2] as "through a surface, the product of the sound pressure, and the component of the particle velocity, at a point on the surface in the direction normal to the surface, integrated over that surface."

  6. Sabin (unit) - Wikipedia

    en.wikipedia.org/wiki/Sabin_(unit)

    It can also be expressed as a coefficient, with a value of 1.00 representing a material which absorbs 100% of the energy, and a value of 0.00 meaning all the sound is reflected. [ 1 ] The concept of a unit for absorption was first suggested by American physicist Wallace Clement Sabine , the founder of the field of architectural acoustics .

  7. Absorption (acoustics) - Wikipedia

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

    The energy transformed into heat is said to have been 'lost'. [1] When sound from a loudspeaker collides with the walls of a room, part of the sound's energy is reflected back into the room, part is transmitted through the walls, and part is absorbed into the walls. Just as the acoustic energy was transmitted through the air as pressure ...

  8. AcoustID - Wikipedia

    en.wikipedia.org/wiki/AcoustID

    Since the future of the free identification service was uncertain, a replacement for it was sought. The Chromaprint acoustic fingerprinting algorithm, the basis for AcoustID identification service, was started in February 2010 by a long-time MusicBrainz contributor Lukáš Lalinský. [6] The oldest entry in the DB is from 8 Oct 2010. [7]

  9. 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.