JPH09297589

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DESCRIPTION JPH09297589
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
karaoke apparatus capable of synthesizing two or more different acoustic signals and generating
a directional sound to a listener from two or more speakers.
[0002]
2. Description of the Related Art An example of a conventional acoustic device will be described
below. 5 and 6 show a first conventional example. FIG. 5 is a view for explaining an example of
use of a karaoke apparatus in a karaoke room and a sound field generated by the karaoke
apparatus. The sound field here refers to the space where the sound exists or the space where
the sound is created. FIG. 6 is a block diagram showing the hardware structure of the amplifier
mixer 101. As shown in FIG. The amplifier mixer 101 here has functions such as selecting,
mixing, and amplifying various acoustic signals, adjusting the level and characteristics, and
receiving the signals to drive a speaker.
[0003]
The sound reproduction apparatus 102, the microphone 103, and the speakers 104R and 104L
are connected to the amplifier mixer 101 of FIG. Also, the singer 105 inputs to the microphone
103, and the audience 106 listens to the sound output from the speakers 104R and 104L. The
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sound reproducing device 102 referred to here is a device that performs various control
processes of a karaoke device including a controller, an operation panel, an internal storage
device, a MIDI sound source device, a video mixer, and the like (not shown). The storage device
provided inside the sound reproduction device 102 stores data such as accompaniment MIDI
music signal data, applause sound signal data, back chorus sound signal data, etc. necessary for
the karaoke performance. Also, the sound field S101 is in front of the speakers 104R and 104L,
and the sound generated from the speakers 104R and 104L is at a position where it can be heard
equally.
[0004]
The internal structure of the amplifier mixer 101 is shown in FIG. The amplifier mixer 101 has a
mixer 107 and an amplifier 108. When the accompaniment MIDI music signal data stored in the
internal storage device of the sound reproduction device 102 is output to the mixer 107, it is
converted into a music signal V11 which is analog data. The microphone 103 converts the voice
emitted by the singer 105 into an electrical signal to obtain an audio signal V12. The music
signal V11 and the audio signal V12 are synthesized by the mixer 107. Therefore, the electrical
signal output V10 of the amplifier 108 is a composite signal of the music signal V11 and the
audio signal V12.
[0005]
The electric signal output V10 from the amplifier 108, which is a composite signal, is composed
of a right speaker output signal and a right speaker output signal, and the right speaker output
signal is passed to the speaker 104R and the left speaker output signal is passed to the speaker
104L. , And are output as karaoke performance from the speakers 104R and 104L. Therefore,
the audience 106 listens to the voice of the singer 105 and the music performance from the
sound reproduction device 102 as a karaoke performance through the speakers 104R and 104L.
However, in the first conventional example, on the layout of the karaoke room, as shown in FIG.
5, the position where the sound reproducing apparatus 102 is installed and the position where
the singer 105 stands and sings are different. Even if this is not the case, the audience 106 hears
that the singing voice of the singer 105 and the music playing from the sound reproducing
apparatus 102 are present together in the sound field S101, which is the space in front of the
eyes. As a result, there is a problem that the voice of the singer 105 and the karaoke
performance give the audience 106 a sense of discomfort as if it were heard from the sound field
S101.
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[0006]
Surround technology is considered to solve this problem. The term surround as used herein
refers to an effect that allows the listener to feel the sense of direction of the sound source and
feel the sense of being surrounded by the sound and the sense of spread. In the first conventional
example, the surround technology is adopted as a karaoke sound device because it suffers from
the lack of the sense of reality as described above. A second conventional example, which is a
specific example thereof, is shown in FIGS. FIG. 7 is a view for explaining an example of use of a
karaoke apparatus in a karaoke room and a sound field generated by the karaoke apparatus. FIG.
8 is a block diagram showing a hardware structure of the amplifier mixer 109. As shown in FIG.
The amplifier mixer 109 here has functions such as selecting, mixing, and amplifying various
acoustic signals, adjusting the level and characteristics, and receiving the signals to drive a
speaker.
[0007]
The sound reproduction apparatus 102, the microphone 103, and the speakers 104R and 104L
are connected to the amplifier mixer 109 of FIG. In addition, the singer 105 inputs to the
microphone 103, and the audience 106 listens to the karaoke performances from the speakers
104R and 104L. Next, the internal structure of the amplifier mixer 109 is shown in FIG. The
amplifier mixer 109 has a mixer 107, an amplifier 108, and a sound field adjustment device 110.
The sound field adjusting device 110 mentioned here is a device for giving or adjusting a sense
of direction to the signal synthesized by the mixer 107 and adjusting the sound field of the
signal.
[0008]
When the accompaniment MIDI music signal data stored in the internal storage device of the
sound reproduction device 102 is output to the mixer 107, it is converted into a music signal
V11 which is analog data. The microphone 103 converts the voice emitted by the singer 105 into
an electrical signal to obtain an audio signal V12. The music signal V11 and the audio signal V12
are synthesized by the mixer 107. Therefore, the electric signal output V13 of the amplifier 108
is obtained by adjusting the synthesized signal of the music signal V11 and the audio signal V12
by the sound field adjusting device 110. The sound field generated by the sound field adjustment
device 110 is basically set in the vicinity of the installation of the sound reproduction device 102
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in the sound field S102 shown in FIG. Of course movement is possible
[0009]
The electric signal output V13 from the amplifier 108 consists of a right speaker output signal
and a right speaker output signal. The right speaker output signal is passed to the speaker 104R,
and the left speaker output signal is passed to the speaker 104L. It is output as karaoke
performance. Therefore, the audience 106 listens to the voice of the singer 105 and the music
performance from the sound reproduction device 102 as a karaoke performance through the
speakers 104R and 104L. As described above, the surround effect is obtained by the sound field
adjustment device 110 installed inside the amplifier mixer 109. Humans feel distance by two
ears. This is called the binaural effect, which is the difference in the intensity of the left and right
sounds, the difference in the time it takes the sound to reach the left and right ears, and the
phase shift of the sound reaching the left and right ears It is supposed to be caused by the
combination of The surround effect is the one utilizing this, and the sound field adjustment
device is the one that artificially creates this.
[0010]
On the other hand, when reproducing a sound, the more the sound is reproduced, the better the
reproduction can be made. However, in the karaoke room, there are cases where the place where
the singer who has the microphone installed stands and sings, and the position of the speaker
that reproduces the sound are different, so it is necessary to make adjustments using the abovementioned sound field adjustment device. In the second conventional example, in consideration
of these points, the sound field adjusting device 110 is provided in the amplifier mixer 109 so as
to be able to produce a sound closer to reality.
[0011]
However, the second prior art also has the following problems. In the amplifier mixer 109 of the
second conventional example shown in FIG. 7 and FIG. 8, the sound field adjustment device 110
is connected immediately after the output of the amplifier 108 or just before the input side of the
amplifier 108. After the signal V11 and the audio signal V12 are synthesized by the mixer 107,
the acoustic field adjustment device 110 adjusts the acoustic signal. Therefore, although the
position of the sound field S102 of the electric signal output V13 is movable, the positions of the
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sound fields of the music signal V11 and the sound signal V12 can not be separated and are
always the same.
[0012]
On the other hand, the layout in which the karaoke apparatus is installed, the position where the
singer 105 sings, and the position where the audience 106 sits and listens to the karaoke
performance in each room of the karaoke box may differ depending on the size and shape. In
particular, as shown in FIG. 7, when the places where the sound reproducing apparatus 102 and
the microphone 103 are installed are different, the positions of the sound sources of the music
signal V11 and the audio signal V12 are also different. However, as described above, the
audience 106 in FIG. 7 feels that the sound reproducing apparatus 102 and the singer 105 are
present together in the sound field S102 due to the sounds generated from the speakers 104R
and 104L. Therefore, the problem that the audience 106 feels uncomfortable with the difference
with the reality is not solved.
[0013]
The present invention has been made to solve the above-mentioned problems, and a
stereophonic karaoke system capable of reproducing sound so that the sound field that the
audience can feel from the speakers is the position of a natural sound field. It aims at providing
an apparatus.
[0014]
SUMMARY OF THE INVENTION In order to achieve this object, the stereophonic audio karaoke
system of the present invention has the following construction.
(1) In a three-dimensional acoustic karaoke apparatus that generates sound with a sense of
direction toward a listener from two or more types of different acoustic signals using two or
more speakers, the respective sound signals generated by the respective speakers Each time, it
has the feature that it has the sound field adjustment device which can adjust the sense of
direction given to the listener. (2) In the stereophonic audio karaoke device described in (1), the
acoustic signal is at least two or more of a sound signal from a microphone, an accompaniment
sound signal, a clapping sound signal, and a back chorus sound signal. A sound signal is included.
(3) In the three-dimensional sound karaoke apparatus described in (1) or (2), each sound input
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terminal for inputting the sound signal and the sound signal input from the sound input terminal
are mixed and output to the amplifier The sound field adjusting devices are respectively
connected between the mixers.
[0015]
The adjustment by the sound field adjustment device as described above of the three-dimensional
sound karaoke device of the present invention having the above-mentioned configuration is
performed by the position where the three-dimensional sound karaoke device is installed in each
room of the karaoke box, the singer sings Since the position and the layout of the position where
the audience sits and listens to the karaoke performance are different depending on the size and
shape, etc., it is necessary for each room of the karaoke box to give a sense of reality. The
adjustment is performed by a specialist when installing the three-dimensional sound karaoke
apparatus. Once determined, it is effective until the layout of the stereophonic sound karaoke
device in the room is changed.
[0016]
For example, the sound from the microphone is adjusted by a sound field adjustment device
prepared for the sound signal from the microphone so that it can be heard from the place where
the singer stands and sings. Also in the accompaniment sound signal, the sound field adjustment
device prepared for the accompaniment sound signal is adjusted so that the music performance
can be heard from the sound reproduction device or from the side of the singer. In addition, the
sound signal of the applause is also adjusted by the sound field adjustment device prepared for
the sound signal of the applause as if it occurs from the vicinity of the audience. In addition, the
sound signal of the back chorus is also adjusted so that it can be heard from behind the singer by
the sound field adjustment device prepared for the sound signal of the back chorus.
[0017]
As a result, the audience can correctly determine the actual standing position of the singer from
the karaoke performances generated from the respective speakers, and it sounds as if the music
performance is being performed from the sound reproducing apparatus or the side of the singer,
and they themselves. It sounds like the applause is boiling from around, and it seems like the
back chorus is being done behind the singer. With such adjustment, the user can feel the sense of
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incongruity that the actual position of the sound source is different from the position judged
from the sound heard from the speaker, as was the case where the karaoke performance became
more realistic. You can enjoy karaoke without
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the three-dimensional
sound karaoke apparatus according to the present invention will now be described with
reference to the drawings. FIG. 1 and FIG. 2 explain the first embodiment of the present
invention. FIG. 1 is a view for explaining an example of use of a three-dimensional sound karaoke
apparatus in a karaoke room and a sound field generated by the three-dimensional sound
karaoke apparatus. The sound field here refers to the space where the sound exists or the space
where the sound is created. FIG. 2 is a block diagram showing the hardware structure of the
amplifier mixer 1. Here, the amplifier mixer 1 has functions such as selecting, mixing, and
amplifying various acoustic signals, adjusting the level and characteristics, and receiving the
signals to drive a speaker.
[0019]
The sound reproduction device 2, the microphone 3, and the speakers 4 </ b> R and 4 </ b> L
are connected to the amplifier mixer 1 of FIG. 1. The singer 5 inputs a voice to the microphone 3,
and the audience 6 listens to the sound output from the speakers 4R and 4L. Here, as shown in
FIG. 9, the configuration of the sound reproducing device 2 is a CPU 21 as a controller, a ROM
22 for storing control programs and the like, a RAM 23 for temporarily storing data and the like,
an input device 29, and an internal storage device. It comprises an HDD 24, a MIDI sound source
device 25, a video reproduction device 27 for reproducing images, a telop reproduction device
26 for reproducing lyric telops, and a television 28 for outputting them. The HDD 24 of the
sound reproduction device 2 stores accompaniment MIDI music signal data V1 necessary for
karaoke performance as digital data.
[0020]
Next, the internal structure of the amplifier mixer 1 is shown in FIG. The amplifier mixer 1 has a
mixer 7, an amplifier 8 and sound field adjustment devices 9 and 10. The sound field adjusting
devices 9 and 10 mentioned here are devices for adjusting the sound field of various acoustic
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signals by giving or adjusting a sense of direction to various acoustic signals. When the
accompaniment MIDI music signal data stored in the HDD 24 of the sound reproduction device 2
is output to the sound field adjustment device 9, it is converted into a music signal V1 which is
analog data. The microphone 3 converts the voice emitted by the singer 5 into an electrical signal
to be an audio signal V2. Next, the music data V1 is converted to music data V1 'through the
sound field adjustment device 9. Further, the audio signal V2 is converted to an audio signal V2
'through the sound field adjustment device 10. The music signal V1 'and the audio signal V2' are
synthesized by the mixer 2. Therefore, the electric signal output V0 of the amplifier 8 is a
composite signal of the music signal V1 'and the audio signal V2'.
[0021]
The electric signal output V0 from the amplifier 8, which is a composite signal, is composed of a
right speaker output signal and a right speaker output signal. The right speaker output signal is
passed to the speaker 4R, and the left speaker output signal is passed to the speaker 4L. , 4R, 4L
is output as a karaoke performance. Also, the sound field S1 created in each of the sound field
adjusting devices is indicated by an alternate long and short dash line in FIG. The sound field S
<b> 1 is adjusted by the sound field adjusting device 9, and is located near where the sound
reproducing device 2 is installed. Also, the sound field S2 is adjusted by the sound field adjusting
device 10, and is located around the place where the singer 5 stands and sings. Of course, any
sound field can be moved by each sound field adjustment device. Therefore, the sense of
direction given to the audience 6 by the speakers 4R and 4L is determined independently of the
music signal V1 by the sound field adjustment device 9 and the sound signal V2 by the sound
signal adjustment signal 10.
[0022]
The adjustment as described above differs in the layout of the position where the threedimensional sound karaoke apparatus is installed, the position where the singer sings, and the
position where the audience sits and listens to the karaoke performance in each room of the
karaoke box due to problems such as size and shape. Therefore, it is necessary for each room of
the karaoke box to give a sense of reality. The adjustment is performed once by the expert when
installing the stereophonic karaoke system, and it is effective until the layout of the stereophonic
karaoke system in the room is changed thereafter. Such adjustments are made for the purpose of
obtaining a surround effect. The surround effect uses an effect called a binaural effect that
occurs in human ears. Here, the binaural effect is either the difference in the intensity of the left
and right sounds, the difference in the time it takes the sound to reach the left and right ears, or
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the phase shift of the sound reaching the left and right ears It is an effect caused by the
combination. Originally, prepare a speaker and an amplifier for each sound signal, and place it in
the appropriate place around the audience, for example, the voice of the singer is on the side of
the singer, the accompaniment is on the side of the sound reproduction device, the applause is on
the audience, the back If it is arranged in the back of a singer if it is a chorus, it can reproduce a
realistic sound, but it can not be so because of the cost etc. Therefore, a sound field adjustment
device is installed using surround, which is a technology that artificially creates this with two or
more speakers.
[0023]
Next, a specific adjustment method will be described. First, for the sound field S1 of the music
signal V1 that is an accompaniment sound signal, the content of the music signal V1 is dedicated
to adjustment, and the sound by the other signals is narrowed so that only the music signal V1 is
played Set Then, the adjustment is performed by the sound field adjustment device 9 so that the
sound fields generated from the speakers 4R and 4L become the position of the sound field S1
that matches the position of the sound reproduction device 2. The adjusted signal is the music
signal V1 '. Next, for a certain sound field S2 of the audio signal V2 which is the audio from the
microphone 3, the content of the audio signal V2 is dedicated for organization, and the sound by
the other signals is narrowed, etc., and only the audio signal V2 is played. Set to And adjustment
is performed by the sound field adjustment device 10 so that the sound field generated from the
speakers 4R and 4L matches the position where the singer 5 stands and sings the microphone 3.
This adjusted signal is the audio data V2 '. Finally, the music signal V1 'and the audio signal V2'
are synthesized and played in the same manner as in the mode normally used, and the
adjustment is ended if the sound field is felt without discomfort.
[0024]
As described above, according to the three-dimensional sound karaoke apparatus of the present
embodiment, the sense of direction for the listener is obtained from the music signal V1 from the
sound reproduction device 2 and the audio data V2 input to the microphone 3 by the singer 5.
The sound generated by the two speakers 4R and 4L has sound field adjusting devices 9 and 10
capable of adjusting the sense of direction given to the audience 6, respectively. Further, the
sound field adjusting devices 9 and 10 are connected between the sound reproducing device 2
and the mixer 7, and the microphone 3 and the mixer 7, respectively, and the sound field
adjusting devices 9 and 10 can be adjusted independently. Therefore, the audience 6 is able to
match the actual position of the sound reproduction device 2 playing the music and the actual
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position of the singer 5 standing and singing with the sound fields generated by the speakers 4R
and 4L. Become. By obtaining such surround effects, the audience 6 listens to the sounds
generated from the speakers 4R and 4L, where the sound emitted from each sound source
should be, the voice of the singer is on the side of the singer, the accompaniment If so, the user
can enjoy karaoke without a sense of incongruity because he feels as if he / she is hearing from
the side of the sound reproduction apparatus.
[0025]
Next, a second embodiment to which the first embodiment of the three-dimensional sound
karaoke apparatus of the present invention is applied will be described based on the drawings.
FIG. 3 and FIG. 4 explain the second embodiment. FIG. 3 is a view for explaining an example of
use of the three-dimensional acoustic karaoke apparatus in the karaoke room and a sound field
generated by the three-dimensional acoustic karaoke apparatus. 4 is a block diagram showing
the hardware structure of the amplifier mixer 11. As shown in FIG. The amplifier mixer 11 here
has functions such as selecting, mixing, and amplifying various sound signals, adjusting the level
and characteristics, and receiving the signals to drive a speaker. Here, as shown in FIG. 10, the
configuration of the sound reproducing device 2 is a CPU 21 as a controller, a ROM 22 for
storing control programs and the like, a RAM 23 for temporarily storing data and the like, an
input device 29, and an internal storage device. HDD 24, MIDI sound source device 25, video
reproduction device 27 for reproducing images, telop reproduction device 26 for reproducing
lyric telops, television 28 for outputting them, D / A conversion of sound signal data of back
chorus The D / A converter 30 for the purpose, the D / A converter 31 for the D / A conversion
of the sound signal data of the applause, etc. The HDD 24 of the sound reproducing apparatus 2
stores digital data such as accompaniment MIDI music signal data V1, clapping sound signal data
V3 and back chorus sound signal data V4 necessary for karaoke performance.
[0026]
Next, the internal structure of the amplifier mixer 11 is shown in FIG. The amplifier mixer 11
includes a mixer 7, an amplifier 8, and sound field adjustment devices 9, 10, 12, 13. The sound
field adjustment devices 9, 10, 12, 13 mentioned here are devices for adjusting the sound fields
of various acoustic signals by giving or adjusting a sense of direction to various acoustic signals.
The accompaniment MIDI music signal data is stored in the HDD 24 of the sound reproduction
device 2 and is converted into music data V1 which is analog data when it is output to the sound
field adjustment device 9. Similarly, the sound signal data of the back chorus and the sound
signal data of the applause are also stored in the HDD 24 of the sound reproduction device 2 as
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digital data, and are analog data when output to the sound field adjustment devices 12 and 13. It
is converted into the back chorus sound signal V3 and the clap sound signal V4, respectively. The
microphone 3 converts the voice emitted by the singer 5 into an electrical signal to obtain an
audio signal V2.
[0027]
The music signal V1, the voice signal V2, the back chorus sound signal V3 and the clap sound
signal V4 pass through the sound field adjusting devices 9, 10, 12, 13 respectively, and the
music signal V1 ', the sound signal V2', the back chorus sound signal V3. ', Converted to a
clapping sound signal V4'. Thereafter, the music signal V1 ', the sound signal V2', the back
chorus sound signal V3 'and the clap sound signal V4' are synthesized by the mixer 2. Therefore,
the electric signal output V5 of the amplifier 3 is a composite signal of the music signal V1 ', the
audio signal V2', the back chorus sound signal V3 ', and the clap sound signal V4'. Therefore, the
sense of direction given to the audience 6 by the speakers 4R and 4L is the applause of the music
signal V1 by the sound field adjustment device 9, the singer 5 by the sound field adjustment
device 10, and the back chorus sound signal V3 by the sound field adjustment device 12. The
sound signal V4 is independently determined by the sound field adjustment device 13.
[0028]
As shown in FIG. 3, the sound field S1 is adjusted by the sound field adjustment device 9, and the
sound field created in each of the sound field adjustment devices is located in the vicinity where
the sound reproduction device 2 is installed. Also, the sound field S2 is adjusted by the sound
field adjusting device 10, and is located around the place where the singer 5 stands and sings.
The sound field S3 is adjusted by the sound field adjusting device 12 and is located behind the
singer 5 singing. In addition, the sound field S4 is adjusted by the sound field adjustment device
13, and is located in front of the speakers 4R and 4L where the audience 6 is present, where the
sound of each speaker can be heard equally. Any sound field can be moved by each sound field
adjustment device.
[0029]
The adjustment described above is due to the size, shape, etc. of the layout of the position where
the three-dimensional sound karaoke apparatus is installed, the position where the singer sings,
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and the position where the audience sits and listens to the karaoke performance in each room of
the karaoke box. Because it is different, it is necessary for each room of the karaoke box to give a
sense of reality. The adjustment, once done by the expert when installing the stereophonic
karaoke system, is effective until the layout of the stereophonic karaoke system in the room is
changed thereafter.
[0030]
Next, a specific adjustment method will be described. First, for the sound field S1 of the music
signal V1 that is an accompaniment sound signal, the content of the music signal V1 is dedicated
to adjustment, and the sound by the other signals is narrowed so that only the music signal V1 is
played Set Then, the adjustment is performed by the sound field adjustment device 9 so that the
sound fields generated from the speakers 4R and 4L become the position of the sound field S1
that matches the position of the sound reproduction device 2. The adjusted signal is the music
signal V1 '. Next, for the sound field S2 of the audio signal V2 that is the audio from the
microphone 3, the content of the audio signal V2 is dedicated to adjustment, and the sound by
the other signals is narrowed, etc., and only the audio signal V2 is played. To set. Then, the
adjustment is performed by the sound field adjustment device 10 so that the sound field
generated from the speakers 4R and 4L is at the position of the sound field S2 that matches the
position where the singer 5 stands and sings the microphone 3. The adjusted signal is the audio
signal V2 '.
[0031]
Next, for the sound field S3 of the back chorus sound signal V3, which is a sound signal of the
back chorus, the content of the back chorus sound signal V3 is dedicated to adjustment, and the
sound by the other signals is narrowed, etc. Set to play only V3. Then, the adjustment is
performed by the sound field adjustment device 12 so that the sound field generated from the
speakers 4R and 4L is at the position of the sound field S3 which coincides with the position
where it comes to the back of the singer 5. This adjusted signal is the back chorus sound signal
V3 '. Next, for a sound field S4 having a clap sound signal V4, which is a clap sound signal, the
content of the clap sound signal V4 is dedicated to adjustment, and the sound by the other
signals is narrowed, etc. Set to be played. Then, adjustment is performed by the sound field
adjustment device 13 so that the sound fields generated from the speakers 4R and 4L are at the
position of the sound field S4 that matches the position where the audience 6 is present. This
adjusted signal is the clapping sound signal V4 '. Finally, the music signal V1 ', the voice signal
V2', the back chorus sound signal V3 'and the clap sound signal V4' are synthesized and played
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in the same manner as in a commonly used mode, and their respective sound fields can be felt
without discomfort. , Adjustment is finished.
[0032]
As described above, according to the three-dimensional sound karaoke apparatus of the present
embodiment, the music signal V1 from the sound reproduction device 2, the sound data V2 input
to the microphone 3 by the singer 5, and the back from the sound reproduction device 2 A sound
field adjustment device 9 capable of adjusting the sense of direction given to the audience 6 in
the sound generated by the two speakers 4R and 4L from the chorus sound signal V3 and the
clap sound signal V4 with a sense of direction to the listener , 10, 12, 13. The sound field
adjusting devices 9, 10, 12, 13 are connected between the sound reproducing device 2 and the
mixer 7, and the microphone 3 and the mixer 7, respectively, and the sound field adjusting
devices 9, 10, 12, 13 are connected. It can be adjusted independently. Therefore, the audience 6
is the actual position of the sound reproduction device 2 playing the music, and the actual
position where the singer 5 stands and sings, and the position behind the standing and singing
place of the singer 5 who should have a back chorus. The position of the audience 6 where
applause should occur can be matched with the respective sound fields generated by the
speakers 4R and 4L. By obtaining such surround effects, the audience 6 listens to the sounds
generated from the speakers 4R and 4L, where the sound emitted from each sound source
should be, the voice of the singer is on the side of the singer, the accompaniment If it is the side
of the sound reproducing apparatus, the back chorus will be behind the place where the singer 5
stands and sings, and if the applause will be heard from the position of the audience 6, the user
can enjoy karaoke without a sense of discomfort.
[0033]
Also, the sound source is not particularly limited to four of accompaniment MIDI music signal,
voice signal, back chorus sound signal, and clapping sound signal, for example, it is possible to
divide each music signal among musical signals or back chorus 2 or more. If each of them is
provided with a sound field adjustment device, it is possible to feel more realistic and to further
contribute to the enjoyment of the karaoke by the customers without discomfort. Further, in the
sound field adjustment device, any device having a structure in which a constant change is given
as the sound signal passes through the sound field adjustment device may be used. This is
because once it is determined by the expert, there is no need to change settings unless the layout
is changed thereafter. In order to change this setting, a separate machine for changing the setting
is prepared, and this makes it possible to change. As a result, it can be expected that the three-
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dimensional karaoke apparatus can be manufactured without much difference in cost.
[0034]
According to the three-dimensional sound karaoke apparatus of the present invention, the music
signal from the sound reproduction device, the voice data inputted by the singer to the
microphone, and the back chorus sound signal and the clapping sound signal from the sound
reproduction device The sound produced by the two speakers with a sense of direction to the
listener is provided with a sound field adjustment device capable of adjusting the sense of
direction given to the audience. In addition, the respective sound field adjusting devices are
respectively connected between the sound reproducing device and the mixer, and the
microphone and the mixer so that the respective sound field adjusting devices can be adjusted
independently.
[0035]
Therefore, the audience, the actual position of the sound reproduction device 2 to play the music,
and the actual position of the singer standing and singing, the position that falls behind the
standing singing place of the back chorus singer, clapping It is possible to match the location of
the audience to occur and the respective sound fields generated by the two speakers. By
obtaining such surround effects, the audience listens to the sound generated from the two
speakers, and the sound emitted from each sound source should be where it should be, the
singer's voice on the side of the singer, and the accompaniment if it is an accompaniment On the
side of the playback device, the back chorus is behind the place where the singer stands and
sings, and the applause feels as if it is heard from the position of the audience, so it has the effect
of enjoying karaoke without a sense of discomfort.
[0036]
Brief description of the drawings
[0037]
1 is an explanatory view of a first embodiment of the three-dimensional sound karaoke apparatus
of the present invention and the sound field generated from the three-dimensional sound
karaoke apparatus.
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[0038]
2 is a block diagram of a first embodiment of the amplifier mixer of the present invention.
[0039]
3 is an explanatory view of a second embodiment of the sound field generated from the threedimensional sound karaoke apparatus and three-dimensional sound karaoke apparatus of the
present invention.
[0040]
4 is a block diagram of a second embodiment of the amplifier mixer of the present invention.
[0041]
5 is an explanatory view of a first conventional example of the conventional karaoke apparatus
and the sound field generated from the karaoke apparatus.
[0042]
6 is a block diagram of a first conventional example of the conventional amplifier mixer.
[0043]
FIG. 7 is an explanatory diagram of a second conventional example of a conventional karaoke
apparatus and a sound field generated from the karaoke apparatus.
[0044]
8 is a block diagram of a second conventional example of the conventional amplifier mixer.
[0045]
9 is a block diagram showing a configuration of the sound reproduction device 2 in FIG.
[0046]
10 is a block diagram showing a configuration of the sound reproduction device 2 in FIG.
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[0047]
Explanation of sign
[0048]
DESCRIPTION OF SYMBOLS 1, 11 Amplifier mixer 2 Sound reproduction apparatus 3
Microphone 4L, 4R Speaker 5 Singer 6 Audience 7 Mixer 8 Amplifier 9, 10, 12, 13 Sound field
adjustment apparatus V0, V5 Electric signal output V1 Music signal V2 Voice signal V3 Back
chorus sound signal V4 clap sound signal S1 to S4 sound field
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