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A software tool that reached Mac users in 1997 was named SpectraFoo, by Metric Halo. [15] At the same time, some early Smaart users found that after tweaking their MIDI drivers they could get Smaart to work on an Apple computer, the software running inside an x86 emulator such as SoftWindows "with varying results".
Today the majority of compression drivers, either by inheritance or design, are based on the guidelines outlined by Smith. The suppression technique of Smith has been recently extended [7] using a more accurate analytical acoustical model of the compression driver geometry. From this work improved phase plug design guidelines have been deduced ...
A horn loudspeaker is a loudspeaker or loudspeaker element which uses an acoustic horn to increase the overall efficiency of the driving element(s). A common form (right) consists of a compression driver which produces sound waves with a small metal diaphragm vibrated by an electromagnet, attached to a horn, a flaring duct to conduct the sound waves to the open air.
Promotional vehicle at Geneva International Motor Show 2019. In the 1960s, Harman Kardon acquired other audio companies such as JBL. [8] In the 1970s, Harman accepted an appointment in the Carter administration as United States Deputy Secretary of Commerce and sold his company to conglomerate Beatrice Foods to avoid a conflict of interest.
Charles Alfred Tyrrell (1843 – July 2, 1918) was a promoter of medical devices, most notably an enema appliance. He was also author of tracts promoting the use of his device for colon cleansing as therapy for detoxification pursuant to a theory of auto-intoxication.