audio

  • early phonograph

    early phonograph
    invented by thomas edison in 1877
  • phonograph

    phonograph
    edison establishes the edison speaking phonograph company
  • the radio

    first radio broadcast
  • the victor phongraph

    the victor phongraph
    most high tech of the phonograph product
  • teslas a phony

    tesla did not build a working radio marconi did but tesla took credit
  • the new radio

    the new radio
    invented in 1943 by gugliemo marconi
  • mp3 players

    mp3 players
    mpeg established
  • mp3s patented

    germany builds and patends first mp3 under that title
  • mp3 player

    algorithm integrated was founded