Later German inventor Johann Philipp redesigned an early transmitter that used a metallic strip attached to a vibrating membrane that would produce intermittent current but a better result came with "liquid transmitter" designed by Scottish-American Alexander Graham Bell in 1876.ĭavid Edward Hughes invented a carbon microphone in 1870 that is the direct prototype of today's microphones and was critical in the development of telephony, broadcasting, and the recording industries.
In 1665 Robert Hooke was the first to invent the process of stretched wire with a cup attached at each end for transmission.
Use High-Quality Microphones for your Studio available at the Best Price in BangladeshĪt the very beginning, acoustic megaphones were used for the amplification of the human voice.
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