Lucent Technologies, Inc. was an American multinational telecommunications equipment company headquartered in Murray Hill, New Jersey. It was established on September 30, 1996, through the divestiture of the former AT&T Technologies business unit of AT&T Corporation, which included Western Electric and Bell Labs.
A fume hood is a type of local exhaust ventilation device that is designed to prevent users from being exposed to hazardous fumes, vapors and dusts. The device is an enclosure with a movable sash window on one side that traps and exhausts gases and particulates either out of the area or back into the room, and is most frequently used in laboratory settings.
An echo chamber is a hollow enclosure used to produce reverberation, usually for recording purposes. A traditional echo chamber is covered in highly acoustically reflective surfaces. By using directional microphones pointed away from the speakers, echo capture is maximized. Some portions of the room can be moved to vary the room's decay time. Nowadays, effects units are more widely used to create such effects, but echo chambers are still used today, such as the famous echo chambers at Capitol Studios.
An anechoic chamber is a room designed to stop reflections or echoes of either sound or electromagnetic waves. They are also often isolated from energy entering from their surroundings. This combination means that a person or detector exclusively hears direct sounds, in effect simulating being outside in a free field.
Sound pressure or acoustic pressure is the local pressure deviation from the ambient atmospheric pressure, caused by a sound wave. In air, sound pressure can be measured using a microphone, and in water with a hydrophone. The SI unit of sound pressure is the pascal (Pa).
Sound Transmission Class is an integer rating of how well a building partition attenuates airborne sound. In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations. Outside the US, the ISO Sound Reduction Index (SRI) is used. The STC rating very roughly reflects the decibel reduction of noise that a partition can provide. The STC is useful for evaluating annoyance due to speech sounds, but not music or machinery noise as these sources contain more low frequency energy than speech.
Sound 80 is a recording studio in Minneapolis, Minnesota, United States founded by engineer Tom Jung and composer/musician Herb Pilhofer in 1969. Largely involved with local artists, the studio is best known for recording portions of Bob Dylan's Blood on the Tracks in 1974 and Cat Stevens' Izitso in 1977, as well as demo tapes for Prince's first album For You in 1977.
In acoustics, absorption refers to the process by which a material, structure, or object takes in sound energy when sound waves are encountered, as opposed to reflecting the energy. Part of the absorbed energy is transformed into heat and part is transmitted through the absorbing body. The energy transformed into heat is said to have been 'lost'.
Acoustic foam is an open celled foam used for acoustic treatment. It attenuates airbone sound waves, reducing their amplitude, for the purposes of noise reduction or noise control. The energy is dissipated as heat. Acoustic foam can be made in several different colors, sizes and thickness.
Acoustic quieting is the process of making machinery quieter by damping vibrations to prevent them from reaching an observer. Machinery vibrates, causing sound waves in air, hydroacoustic waves in water, and mechanical stresses in solid matter. Quieting is achieved by absorbing the vibrational energy or minimizing the source of the vibration. It may also be redirected away from an observer.
The Franklin S. Harris Fine Arts Center (HFAC) was previously the main location for Brigham Young University's (BYU) College of Fine Arts and Communications (CFAC). In early 2023, the building was demolished to make way for a new arts building on the same site.
Crystal River Engineering Inc. was an American technology company best known for their pioneering work in HRTF based real-time binaural, or 3D sound processing hardware and software. The company was founded in 1989 by Scott Foster after he received a contract from NASA to create the audio component of VIEW, a virtual reality based training simulator for astronauts. Crystal River Engineering was acquired by Aureal Semiconductor in 1996.
Eckel Industries is an acoustics noise control company founded 1952 in Cambridge, Massachusetts. The company engineers and constructs anechoic (echo-free) sound chambers.
The United States Senate Chamber is a room in the north wing of the United States Capitol that has served as the legislative chamber of the United States Senate, since January 4, 1859. The Senate first convened in its current meeting place after utilizing Federal Hall, Congress Hall, and the Old Senate Chamber in the Capitol building for the same purpose.
The Centre for Nanoscience and Quantum Information is a research center within the University of Bristol. The center opened in 2009 and was initially intended to serve multiple institutions; however, it was eventually absorbed into the School of Physics of the University of Bristol in 2016. The building was designed to provide a unique ultra-low-vibration research space, with some claims calling it "the quietest building in the world".
University of Minnesota College of Design is located on both the Saint Paul and Minneapolis campuses of the University of Minnesota-Twin Cities. The College of Design includes the full range of design disciplines and is home to eight undergraduate majors in the fields of architecture, apparel design, graphic design, interior design, landscape architecture, product design, and retail merchandising. There are 23 graduate degree programs, eight undergraduate minors, nine research centers, and the Goldstein Museum of Design.
Salford Acoustics offers acoustics and audio engineering courses undertakes public and industrial research in acoustics, carries out commercial testing and undertakes activities to engage the public in acoustic science and engineering. It is based in two locations: (i) 3 km west of Manchester city centre, UK, in the Newton Building on the Peel Park Campus of the University of Salford, and (ii) on the banks of the Manchester Ship Canal in Manchester at MediaCityUK.
Beatie Wolfe is an Anglo-American conceptual artist and composer described as a "musical weirdo and visionary" known for seeing music differently and creating new formats for music and art in the digital era. These projects include a space broadcast via the Holmdel Horn Antenna, the world's first 360° AR live-stream, and a dynamic visualization of 800,000 years of climate data charting rising CO2 levels. Wolfe's work has been featured internationally at 2021 United Nations Climate Change Conference, the Nobel Prize Summit, the Victoria and Albert Museum, The New York Times Climate Summit, the London Design Biennale, Somerset House, the Rauschenberg Gallery, South by Southwest, and the Barbican Centre. Wired selected Wolfe as one of 22 changing the world, she is a winner of Webby Awards inaugural Anthem Awards, and UN Women chose Wolfe as one of nine innovators for a global campaign for International Women's Day. Wolfe is also the co-founder of a "profound" research project looking at the Power of Music for people living with dementia. The artist has collaborated with experimental artists Brian Eno, Mark Mothersbaugh, Michael Stipe, Allee Willis and producer Linda Perry amongst others.
The Pennsylvania State University Applied Research Laboratory, is a specialized research unit dedicated to interdisciplinary scientific research at the Penn State University Park campus. The ARL is a DoD designated U.S. Navy University Affiliated Research Center. It is the university's largest research unit with over 1,000 faculty and staff. The Laboratory ranks 2nd in DoD and 10th in NASA funding to universities.
Ma Dayou or Dah-You Maa was a Chinese acoustical physicist, specializing in various aspects of acoustics, especially sound generation, transmission and absorption. Academician of Chinese Academy of Sciences (CAS), Ma was a research professor at Institute of Acoustics of CAS; Chairman of Chinese National Acoustics Standardization Technical Committee; and Editor-in-Chief of Chinese Journal of Acoustics.
