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Speaker stands, therefore were purpose-built to remove any deleterious colourations that came about through unwanted vibration. Further research has shown that speakers are best positioned so that the tweeter is level with the ear of the listener and so speaker stands are often built so that they line up the speakers with the ear of a person ...
Court reporter tests his stenomask. [1]A stenomask is a hand-held microphone built into a padded, soundproof enclosure that fits over the speaker's mouth or nose and mouth. . Some lightweight versions may be fitted with an elastic neck strap to hold them in place while freeing the user's hands for other tas
1958 – Introduction of JBL Paragon stereo speaker system; 1962 – JBL creates the first 2-way studio monitor, using a high-frequency motor lens; 1967 - JBL creates the iconic red box logo with the exclamation (!) and white lettering. Designed by Arnold Wolfe, the president of JBL [11] 1968 – JBL launches the 3-way speaker 4310
Interruptible foldback (IFB), also known as interrupted foldback, interruptible feedback, or interrupt for broadcast, is a monitoring and cueing system used in television, filmmaking, video production, and radio broadcast for one-way communication from the director or assistant director to on-air talent or a remote location.
There are two common types of ossicular replacement prostheses, the total ossicular replacement prosthesis (TORP) and partial ossicular replacement prosthesis (PORP). A TORP replaces the entire ossicular chain while a PORP replaces only the incus and malleus but not the stapes. Indications for use of an ossicular replacement prosthesis include: [1]
A public address system (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music.
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.
An inflatable air cushion is a bag of fabric or plastic that can be inflated to provide cushioning. Unlike bubble wrap, inflatable air cushions have a check valve to allow the cushion to be inflated or sometimes deflated. Samsung toner packaging in inflatable air cushion Impact limiter, JPL Vacuum chamber for testing leaks in inflatable cushion.