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DESCRIPTION JPH0793884

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DESCRIPTION JPH0793884
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
audio video apparatus suitable to be applied to, for example, a karaoke apparatus which displays
a lyrics image on a monitor and outputs an accompaniment sound and a microphone sound from
a speaker.
[0002]
2. Description of the Related Art FIG. 4 shows a configuration example of a conventional karaoke
apparatus. In the figure, reference numeral 21 denotes a disc player for reproducing karaoke
software such as a video disc, a compact disc (CD-G), and a video tape, and a karaoke software
player such as a VTR. Reference numeral 22 denotes a television receiver (TV) in which the tuner
23 is built in, and to the tuner 22, an antenna 24 is connected. The video signal SV of the lyric
image output from the player 21 is supplied to the television receiver 22 through a cable, and
the lyric image by the video signal SV is displayed on the screen of the television receiver 22.
[0003]
また、25はオーディオアンプである。 An audio signal SA of an accompaniment sound output
from the player 21 is supplied to the audio amplifier 25 through a cable, and an audio signal
SAm of a microphone sound output from the microphone 26 is supplied. The audio amplifier 25
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performs processing such as mixing of the audio signals SA and SAm, amplification, addition of a
reverberation effect, and the like. The audio signal output from the audio amplifier 25 is supplied
to the speaker 27 via a cable, and the accompaniment sound and the microphone sound are
output from the speaker 27.
[0004]
Note that by supplying an audio signal output from the audio amplifier 25 to the audio input
terminal of the television receiver 22, an accompaniment sound and an accompaniment sound
are generated using a speaker (not shown) mounted on the television receiver 1. Microphone
sound can also be output.
[0005]
According to the karaoke apparatus of the example shown in FIG. 4, independent sets of the
karaoke software player 21, the television receiver 22, the audio amplifier 25 and the like are
required, and between the sets There is a problem that it is necessary to connect with a cable,
which is expensive.
[0006]
In addition, regarding the operation, each set of the karaoke software player 21, the television
receiver 22, the audio amplifier 25 and the like must be started to operate to set each set
according to the karaoke apparatus. It was complicated.
[0007]
Therefore, the present invention provides an audio video apparatus that can be configured
inexpensively and that is easy to operate.
[0008]
According to a first aspect of the present invention, an audio video apparatus comprises: a video
signal generator for generating a video signal; an audio signal generator for generating an audio
signal; and a video signal generator. A monitor for displaying an image by a video signal, a mixer
for mixing an audio signal output from the audio signal generator and an external input audio
signal, and an audio from the audio signal output from the mixer The speaker unit is integrated
with a video signal generation unit, an audio signal generation unit, and a system control unit for
controlling the operation of the mixer unit.
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[0009]
According to a second aspect of the present invention, an audio video apparatus comprises: a
plurality of video signal generating units for generating a video signal; a plurality of audio signal
generating units for generating an audio signal; and a video signal output from the plurality of
video signal generating units. A first switch for selecting and outputting one of them, a monitor
for displaying an image according to a video signal output from the first switch, and an audio
signal output from a plurality of audio signal generators A second switch unit that selects and
outputs one of them, a mixer unit that mixes an audio signal output from the second switch unit
with an external input audio signal, and an audio signal output from the mixer unit Speaker unit
for outputting sound, plural video signal generators, plural audio signal generators, first and
second switches And those formed by integrating the system control unit for controlling the
operation of the mixer.
[0010]
An audio video apparatus according to a third aspect of the invention comprises a video signal
generating unit generating a video signal, an audio signal generating unit generating an audio
signal, and an image according to a video signal output from the video signal generating unit. A
monitor unit, a mixer unit for mixing an audio signal output from the audio signal generation unit
and an external input audio signal, a speaker unit for outputting audio based on the audio signal
output from the mixer unit, and Signal recording unit for recording an audio signal and an
external input video signal, and a system control unit for controlling operations of a video signal
generating unit, an audio signal generating unit, a mixer unit, and a signal recording unit. .
[0011]
In the present invention, the respective parts are integrated, and it is possible to configure at low
cost instead of configuring the independent sets by cables as in the prior art.
Further, since the operation of each unit is controlled by the system control unit, the user can
easily operate each unit with the key operation unit connected to the system control unit instead
of operating each unit. .
[0012]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present
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invention will be described below with reference to FIG.
This example is an example applied to a karaoke apparatus.
[0013]
In the figure, 1 shows the karaoke apparatus as a whole.
A VTR unit 2 reproduces a video tape or the like as karaoke software, a disc player unit 3
reproduces a video disc or a compact disc (CD-G) as karaoke software, and a tuner unit 4.
The external antenna 6 is connected to the tuner unit 4 via the antenna terminal 5.
[0014]
Reference numeral 7 denotes a system control unit (hereinafter referred to as "system control
unit") configured to have a microcomputer, and a key operation unit 8 is connected to the system
control unit 7.
The operations of the VTR unit 2, the disc player unit 3 and the tuner unit 4 described above are
controlled by the system control unit 7 according to the operation of the key operation unit 8 by
the user.
[0015]
The video signal SVa output from the VTR unit 2, the video signal SVb output from the disc
player unit 3, and the video signal SVc output from the tuner unit 4 are supplied to the video
switch processing unit 9, and the switch processing unit A video signal SVd output from, for
example, a video camera (not shown) is supplied to an external video input terminal 10, for
example.
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A control signal CTLv is supplied to the switch processing unit 9 from the system control unit 7,
and switching of the switch is controlled by the control signal CTLv.
[0016]
FIG. 2 shows the configuration of the video switch processing unit 9.
The video signals SVa, SVb, SVc, and SVd are respectively supplied to fixed terminals on the a
side, b side, c side, and d side of the changeover switch 91. The video signal output from the
changeover switch 91 is supplied to the n-side fixed terminal of the changeover switch 92. The
fixed terminal on the m side of the changeover switch 92 is electrically floated.
[0017]
The changeover switches 91 and 92 are switched and controlled in conjunction with the control
signal CTLv. That is, when the changeover switch 91 is connected to the a side, the changeover
switch 92 is connected to the m side. Further, when the changeover switch 91 is connected to
any one of the b side, the c side and the d side, the changeover switch 92 is connected to the n
side. The video signal output from the changeover switch 91 is amplified by the amplifier 93 and
output as the video signal SV1. Further, the video signal output from the changeover switch 92 is
amplified by the amplifier 94 and output as the video signal SV2.
[0018]
Returning to FIG. 1, the video signal SV1 output from the switch processing unit 9 is supplied to
the monitor unit 11, and an image according to the video signal SV1 is displayed. As is well
known, the monitor unit 11 includes a luminance / color processing circuit, a deflection circuit, a
picture tube and the like. An image display element other than a picture tube such as a liquid
crystal display element may be used. Also, the video signal SV2 output from the switch
processing unit 9 is supplied to the VTR unit 2 as a recording video signal.
[0019]
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The audio signal SAa output from the VTR unit 2, the audio signal SAb output from the disc
player unit 3, and the audio signal SAc output from the tuner unit 4 are supplied to the audio
switch processing unit 12. Further, an audio signal SAd is supplied to the switch processing unit
12 through the external audio input terminal 13, and an audio signal SAm of a microphone
sound output from the microphone 14 is supplied through the microphone terminal 15. A
control signal CTLa is supplied to the switch processing unit 12 from the system control unit 7,
and the switching of the switch is controlled by the control signal CTLa.
[0020]
FIG. 3 shows the configuration of the audio switch processing unit 12. The audio signals SAa,
SAb, SAc, and SAd are supplied to fixed terminals on the a side, b side, c side, and d side of the
changeover switch 121, respectively. The audio signal output from the changeover switch 121 is
supplied to the mixer 122 and mixed with the audio signal SAm. The audio signal output from
the mixer 122 is supplied to the n-side fixed terminal of the changeover switch 123. The fixed
terminal on the m side of the changeover switch 123 is electrically floated.
[0021]
The changeover switches 121 and 123 are switched and controlled in conjunction with the
control signal CTLa. That is, when the changeover switch 121 is connected to the a side, the
changeover switch 123 is connected to the m side. Further, when the changeover switch 121 is
connected to any one of the b side, the c side and the d side, the changeover switch 123 is
connected to the n side. The audio signal output from the mixer 122 is amplified by the amplifier
124 and output as an audio signal SA1. The audio signal output from the changeover switch 123
is amplified by the amplifier 125 and output as an audio signal SA2.
[0022]
Returning to FIG. 1, the audio signal SA1 output from the switch processing unit 12 is supplied to
the speaker unit 16, and the audio based on the audio signal SA1 is output. The audio signal SA2
output from the switch processing unit 12 is supplied to the VTR unit 2 as a recording audio
signal.
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[0023]
In the above configuration, the video system will be described first. When the VTR unit 2 is in the
reproduction state and the changeover switch 91 of the switch processing unit 9 is connected to
the a side, the video signal SV1 supplied from the switch processing unit 9 to the monitor unit 11
is a reproduction video signal of the VTR unit 2 The SVa is amplified by the amplifier 93, and the
monitor unit 11 displays an image (a lyric image when the karaoke tape is reproduced) by the
reproduction video signal SVa of the VTR unit 2. In this case, since the changeover switch 92 is
connected to the m side, the video signal SV2 supplied from the switch processing unit 9 to the
VTR unit 2 becomes substantially no signal.
[0024]
When the disc player unit 3 is in the reproduction state and the switch 91 of the switch
processing unit 9 is connected to the b side, the video signal SV1 supplied from the switch
processing unit 9 to the monitor unit 11 is the disc player unit 3 The reproduced video signal
SVb is amplified by the amplifier 93, and the monitor unit 11 displays an image (a lyric image
when a karaoke disc is reproduced) by the reproduced video signal SVb of the disc player unit 3.
In this case, since the changeover switch 92 is connected to the n side, the video signal SV2
supplied to the VTR unit 2 from the switch processing unit 9 is the one obtained by amplifying
the reproduced video signal SVb by the amplifier 94. By doing this, the reproduction video signal
SVb is recorded.
[0025]
When the tuner unit 4 is turned on and the switch 91 of the switch processing unit 9 is
connected to the c side, the video signal SV1 supplied from the switch processing unit 9 to the
monitor unit 11 is an output of the tuner unit 4 The video signal SVc is amplified by the amplifier
93, and the monitor unit 11 displays an image based on the output video signal SVc of the tuner
unit 4. In this case, since the changeover switch 92 is connected to the n side, the video signal
SV2 supplied from the switch processing unit 9 to the VTR unit 2 is the video signal SVc
amplified by the amplifier 94, and the VTR 2 is put in the recording state. This makes it possible
to record the video signal SVc.
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[0026]
When the switch 91 of the switch processing unit 9 is connected to the d side, the video signal
SV1 supplied from the switch processing unit 9 to the monitor unit 11 is supplied to the external
video input terminal 10, such as an output of a video camera The video signal SVd is amplified by
the amplifier 93, and the monitor unit 11 displays an image based on the output video signal SVd
of a video camera or the like. In this case, since the changeover switch 92 is connected to the n
side, the video signal SV2 supplied from the switch processing unit 9 to the VTR unit 2 is the
video signal SVd amplified by the amplifier 94, and the VTR 2 is put in the recording state. Thus,
the output video signal SVd is recorded.
[0027]
Next, the audio system will be described. When the VTR unit 2 is in the reproduction state and
the changeover switch 121 of the switch processing unit 12 is connected to the a side, the audio
signal SA1 supplied from the switch processing unit 12 to the speaker unit 16 is the
reproduction audio signal of the VTR unit 2 The output audio signal SAm of the microphone 14
is mixed with SAa and amplified by the amplifier 124, and the audio by the audio signal SAa from
the speaker unit 16 (accompaniment sound when the karaoke tape is reproduced) and the
microphone by the audio signal SAm Audio is output. Of course, when there is no voice input to
the microphone 14 or when the microphone 14 itself is not in the on state, the audio signal SAm
is not output, and the microphone voice is not output from the speaker unit 16 (this is also true
in the following connection examples) The same). In this case, since the changeover switch 123 is
connected to the m side, the audio signal SA2 supplied from the switch processing unit 12 to the
VTR unit 2 becomes substantially no signal.
[0028]
When the disc player unit 3 is in the reproduction state and the switch 121 of the switch
processing unit 12 is connected to the b side, the audio signal SA1 supplied from the switch
processing unit 12 to the speaker unit 16 is the disc player unit 3 The output audio signal SAm
of the microphone 14 is mixed with the reproduced audio signal SAb and amplified by the
amplifier 124, and the audio by the audio signal SAb from the speaker unit 16 (accompaniment
sound when the karaoke disc is reproduced) and the audio The microphone sound by the signal
SAm is output. In this case, since the changeover switch 123 is connected to the n side, the audio
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signal SA2 supplied from the switch processing unit 12 to the VTR unit 2 is a signal obtained by
amplifying the mixed audio signal of the audio signals SAb and SAm by the amplifier 125, The
mixed audio signal is recorded by setting the VTR 2 to the recording state.
[0029]
When the tuner unit 4 is turned on and the switch 121 of the switch processing unit 12 is
connected to the c side, the audio signal SA1 supplied from the switch processing unit 12 to the
speaker unit 16 is an output of the tuner unit 4 The output audio signal SAm of the microphone
14 is mixed with the audio signal SAc and amplified by the amplifier 124, and the speaker unit
16 outputs the sound of the audio signal SAc and the microphone sound of the audio signal SAm.
In this case, since the changeover switch 123 is connected to the n side, the audio signal SA2
supplied from the switch processing unit 12 to the VTR unit 2 is a signal obtained by amplifying
the mixed audio signal of the audio signals SAc and SAm by the amplifier 125, The mixed audio
signal is recorded by setting the VTR 2 to the recording state.
[0030]
Further, when the switch 121 of the switch processing unit 12 is connected to the d side, the
audio signal SA1 supplied from the switch processing unit 12 to the speaker unit 16 is used as a
microphone for the audio signal SAd supplied to the external audio input terminal 13 The
fourteen output audio signals SAm are mixed and amplified by the amplifier 124, and the
speaker unit 16 outputs the sound of the audio signal SAd and the microphone sound of the
audio signal SAm. In this case, since the changeover switch 123 is connected to the n side, the
audio signal SA2 supplied from the switch processing unit 12 to the VTR unit 2 is a signal
obtained by amplifying the mixed audio signal of the audio signals SAd and SAm by the amplifier
125, The mixed audio signal is recorded by setting the VTR 2 to the recording state.
[0031]
As described above, in this example, the VTR unit 2, the disc player unit 3, the tuner unit 4, the
system control unit 7, the key operation unit 8, the video switch processing unit 9, the monitor
unit 11, the audio switch processing unit 12, and the speaker unit 16 It does not require an
independent set of a television receiver, a VTR, a disc player, a switcher, etc., and the connection
cable of each part can be made into a substrate. Therefore, it can be configured inexpensively as
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compared with the conventional karaoke apparatus. Further, since the operation of each unit can
be controlled only by operating the key operation unit 8 connected to the system control unit 7,
there is no need to operate for each set as in the conventional karaoke apparatus, and the
operation can be performed easily.
[0032]
In the above embodiment, the VTR unit 2 and the disc player unit 3 for outputting both the video
signal and the audio signal are shown. However, the reproducing apparatus and the recording
apparatus which handle only one of the video signal and the audio signal are described. What is
provided can be configured similarly.
[0033]
In the above embodiment, the mixer 122 of the audio switch processing unit 12 always mixes the
output audio signal SAm of the microphone 14 to any one of the audio SAa, SAb, SAc, and SAd.
May be controlled by the control signal CTLa.
[0034]
Further, although not described above, an image based on the video signals SVa and SVb from
the VTR unit 2 and the disc player unit 3 is displayed on the monitor unit 11 and audio signals
SAa and SAb from the VTR unit 2 and the disc player unit 3 So that the video signal SVd supplied
to the external video input terminal 10 and the audio signal SAd supplied to the external audio
input terminal 13 can be recorded by the VTR unit 2 in a state where the audio by the
microphone and the microphone audio are output from the speaker unit 16 If the switch
processing units 9 and 12 are configured, the VTR unit 2 can also record an imaging signal
(video signal, audio signal) of a karaoke singer by a video camera.
[0035]
According to the audio video apparatus of the present invention, the respective parts are
integrated, and independent sets are not connected by cables, and can be configured
inexpensively.
In addition, since the system control unit controls the operation of each unit, the user does not
have to operate each unit, and it is possible to easily operate each unit with the key operation
unit connected to the system control unit. .
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