Georg Neumann / Western Electric Company / Columbia Graphophone Company / Microphone Data Ltd / National Semiconductor / Sony / RCA / Alexander Graham Bell / Bell Laboratories / BBC / Audio Technica / /
Continent
America / Europe / /
Country
Germany / /
Currency
GBP / /
Event
Patent Filing / /
Facility
University of Reading / BBC television station / Mathematical Institute / Alexandra Palace / /
IndustryTerm
metal point contact / present technologies / digital technology / low impedance devices / radio services / type-printing telegraph instrument / conventional condenser systems / rudimentary telephone system / metal point / feedback electronics / quality recording applications / theatrical applications / acidic solution / telecommunications industries / voice telephony / opto-mechanical devices / telephone transmitters / electrical record cutting systems / Laboratory systems / gas pumping / digital signal processing techniques / sample-rate digital systems / laboratory sound intensity measurement tool / telephone system / /
Organization
University of Reading / Mathematical Institute / /
Person
Elisha Gray / Eugen Beyer / David Edward Hughes / Hugh Robjohns / Thomas Alva Edison / Michael Gerzon / Johann Philipp Reis / Alan Blumlein / Watson / Harry Olson / /
Position
Technical Editor / speaker / candidate for the title / physicist / artist / Professor / lecturer / one of the founders / assistant / technical author and consultant / /
Product
C4000 / Soundfield capsule / /
PublishedMedium
Sound on Sound / /
Technology
laser / enabling technology / DSD / lasers / radio frequency / /
A brief history of microphones A brief history of microphones