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Loudspeaker acoustics is a subfield of acoustical engineering concerned with the design of loudspeakers. [1] It focuses on the reproduction of sound and the parameters involved in doing so in actual equipment.
For 25 °C air with 50% relative humidity the expression evaluates to 9.438×10 −7 s 3 /m 3. From the efficiency, we may calculate sensitivity, which is the sound pressure level a speaker produces for a given input: A speaker with an efficiency of 100% (1.0) would output a watt for every watt of input.
The two most common types of speaker enclosure are acoustic suspension (sometimes called pneumatic suspension) and bass reflex.In both cases, the tuning affects the lower end of the driver's response, but above a certain frequency, the driver itself becomes the dominant factor and the size of the enclosure and ports (if any) become irrelevant.
This branch of acoustic engineering deals with the design of headphones, microphones, loudspeakers, sound systems, sound reproduction, and recording. [15] There has been a rapid increase in the use of portable electronic devices which can reproduce sound and rely on electroacoustic engineering, e.g. mobile phones , portable media players , and ...
The concept was innovated within acoustic enclosure design, and originally termed an "acoustical labyrinth", by acoustic engineer and later Director of Research, Benjamin Olney, who developed the concept at the Stromberg-Carlson Telephone Co. in the early 1930s while studying the effect of enclosure shape and size on speaker output, including ...
NAD is an abbreviation for New Acoustic Dimension. The company was founded in London , England , in 1972 by Dr. Martin L. Borish, an electrical engineer with a PhD in physics. [ 2 ] [ 3 ] [ 4 ] Its most famous product is the late-1970s NAD 3020 , an integrated amplifier designed by Bjørn Erik Edvardsen, which was highly regarded by various ...