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Auto voice changing apparatus

  • US 4,953,212 A
  • Filed: 10/25/1989
  • Issued: 08/28/1990
  • Est. Priority Date: 11/29/1988
  • Status: Expired due to Term
First Claim
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1. An auto voice changing apparatus comprising:

  • a microphone input detecting circuit for outputting a switching signal when a sound signal is included in an input signal from a microphone;

    a switching signal switch for controlling the transmission of the switching signal outputted from this microphone input detecting circuit;

    a multi-sound voice changing circuit for outputting a music signal reproducing music information of a reproducing disk when no switching signal of said microphone input detecting circuit is supplied, said multi-sound voice changing circuit outputting a play signal by removing the sound signal from the music signal reproducing the music information of said reproducing disk when the switching signal of said microphone input detecting circuit is supplied;

    a stereo voice changing circuit for outputting the play signal by removing the sound signal from the music signal reproducing the music information of said reproducing disk;

    a voice switch for switching the music signal reproducing the music information of said reproducing disk to said multi-sound voice changing circuit or said stereo voice changing circuit;

    a selecting switch for selecting the output signal of said multi-sound voice changing circuit or the play signal of said stereo voice changing circuit;

    an adder for adding the sound signal from said microphone to the output signal of said multi-sound voice changing circuit selected by this selecting switch or the play signal of said stereo voice changing circuit;

    an auto voice switch for outputting an operating signal in an operating state thereof and an non-operating signal in a non-operating state thereof; and

    a switch control section for discriminating a control signal reproducing control information of said reproducing disk and setting said switching signal switch, said voice switch and said selecting switch to predetermined operating states thereof in accordance with the output signal of said auto voice switch.

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