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THE AUDIO SYSTEM

By CAMILO CORDERO
  • Period: 1925 BCE to

    THE ELECTRICAL ERA

    THE ELECTRICAL ERA (1925-1945): The 'second wave' of sound recording history was ushered in by the introduction of Western Electric's integrated system of electrical microphones, electronic signal amplifiers and electrical disc-cutting machines, which was adopted by major US record labels in 1925
  • Period: 1887 BCE to 1925 BCE

    THE ACOUSTIC ERA

    THE ACOUSTIC ERA (1887 to 1925): The earliest practical recording technologies were entirely mechanical devices. These recorders typically used a large conical horn to collect and focus the physical air pressure of the sound waves produced by the human voice or musical instruments.