Volume control of aural guidance of vehicle route guidance apparatus
First Claim
1. A vehicle route guidance apparatus which outputs route guidance aurally through a loudspeaker which also outputs an output signal from an audio apparatus, comprising:
- a voice generation section which generates a guidance voice signal for route guidance through said loudspeaker;
volume setting means being responsive to external operation, for setting a level of said guidance voice signal without changing a level of said output signal from said audio apparatus;
a circuit change switch for switching an input to said loudspeaker between said output signal from an audio apparatus and said guidance voice signal;
muting means for muting said output signal from said audio apparatus;
a control section which activates said muting means then switches said circuit change switch to said guidance voice signal when said guidance voice signal is to be output through said loudspeaker, so as to mute said output signal from said audio apparatus before said switching of said circuit change switch.
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Accused Products
Abstract
An apparatus to facilitate volume control for route aural guidance. When supplying a guidance voice to a loudspeaker 34a, a voice control section 30 disconnects the loudspeaker 34a from audio and outputs the guidance voice through the loudspeaker. A volume control screen is displayed on a display section 28 where the user adjusts the volume by touching the screen. When the voice control section 30 switches a signal to the loudspeaker 34a, a mute circuit 40a is operated to mute the voice output before the voice is output through the loudspeaker 34a. When the user terminates volume adjustment, the voice control section 30 outputs a voice for volume confirmation or check at the adjusted volume through the loudspeaker 34a. The user can check the adjusted volume at this time.
54 Citations
9 Claims
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1. A vehicle route guidance apparatus which outputs route guidance aurally through a loudspeaker which also outputs an output signal from an audio apparatus, comprising:
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a voice generation section which generates a guidance voice signal for route guidance through said loudspeaker; volume setting means being responsive to external operation, for setting a level of said guidance voice signal without changing a level of said output signal from said audio apparatus; a circuit change switch for switching an input to said loudspeaker between said output signal from an audio apparatus and said guidance voice signal; muting means for muting said output signal from said audio apparatus; a control section which activates said muting means then switches said circuit change switch to said guidance voice signal when said guidance voice signal is to be output through said loudspeaker, so as to mute said output signal from said audio apparatus before said switching of said circuit change switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicle route guidance apparatus which outputs route guidance aurally through only one of a plurality of loudspeakers which also outputs an output signal from an audio apparatus, comprising:
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a voice generation section which generates a guidance voice signal for route guidance through said only one of a plurality of loudspeakers; volume setting means being responsive to external operation, for setting a level of said guidance voice signal without changing a level of said output signal from said audio apparatus; a circuit change switch for switching an input to said only one loudspeaker between said output signal from said audio apparatus and said guidance voice signal; muting means for muting said output signal from said audio apparatus; a control section which activates said muting means then switches said circuit change switch to said guidance voice signal when said guidance voice signal is to be output through said only one loudspeaker, so as to mute said output signal from said audio apparatus to said only one loudspeaker before said switching of said circuit change switch without muting said output from said audio apparatus to said plurality of speakers except said only one loudspeaker.
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Specification