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JPH09219898

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPH09219898
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
electronic sound apparatus capable of recording, generating, and reproducing a sound field
having an effect close to or more than a live performance in homes, concert halls, outdoors and
the like.
[0002]
2. Description of the Related Art A conventional audio apparatus such as "stereo" is for
reproducing music from music sources recorded on recording media such as records, magnetic
tapes, CDs and the like, and from a synthesizer. In principle, these are the sounds picked up by
the left and right (two channels) microphones (or the sound mixed with the two lines created by
a synthesizer etc.) and recorded from the corresponding two channels (two channels) speakers It
was output and reproduced the sound field.
[0003]
However, although the sound system for movie theaters can use several channels to create the
situation of the sound of cars and trains running away, in principle, the method of locating the
sound is the same as with two channels. In other words, the position and the sound field of the
sound are created by the difference in the strength and the phase of the sound emitted from the
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two speakers.
[0004]
Therefore, the sounds produced by dozens and hundreds of musical instruments (sound sources)
like an orchestra are mixed and recorded as a two-channel signal, and when this is reproduced,
the two-channel sound is a two-channel signal. The speakers were artificially playing as if there
were tens or hundreds of instruments (sound sources) in front of them. In addition, sound
sources generated in large numbers by synthesizers that artificially generate sounds (sound
sources) of various musical instruments are mixed down to sounds of two systems (two channels)
by a mixer or the like and recorded, and reproduced as described above.
[0005]
However, since all the sound sources are recorded and reproduced as two-channel signals, for
example, delicate sounds such as the rosy feel of a bow and a string coated with rosin of a violin
or the like There was no way to reproduce powerful sounds, etc., and it would have been
impossible to listen to live music. In addition, since reproduction is performed according to the
above principle with two channels, the clarity of the sound source and the position are not clear,
and the sound is unstable because the sound is too wide or the sound is missed in the middle. In
particular, these phenomena are noticeable due to the difference in volume (volume) and the
listening position.
[0006]
In view of the above points, the present invention individually records and reproduces each and
every one of the musical instruments (sound sources) constituting an orchestra, an ensemble,
etc., and it is delicate, powerful and has a clear position and sound field It is an object of the
present invention to provide an electroacoustic apparatus which can be manufactured and the
above problems are eliminated.
[0007]
SUMMARY OF THE INVENTION In order to achieve the above object, according to the present
invention, there is provided a recording and reproducing unit having a number of channels equal
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to the number of sound sources (including the case where one musical instrument has a plurality
of channels). One or more loudspeaker systems (especially non-directional loudspeaker systems)
are preferred for each channel of the reproduction unit.
Hereinafter, the speaker system is simply referred to as a speaker), and the speaker is placed at a
desired position freely on a wall, floor, ceiling, etc., that is, the sound field is reproduced by
actually placing the sound source spatially. Or they are made anew. Therefore, it is configured to
be able to reproduce a sound field that is as close as possible to live performance in a hall, at
home, outdoors, etc.
[0008]
Also, according to the invention as set forth in claim 2, a large volume cut safety device is
installed in the multi-channel processor between the recording and reproducing unit and the
speaker, so that the listener can not physically accept the system failure or noise. It is configured
not to generate a loud sound.
[0009]
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described
below based on the attached drawings.
FIG. 1 is an explanatory view schematically showing the present invention, FIG. 2 is an
explanatory view showing an example of a processor, and FIG. 3 is an explanatory view in the
case where a loud volume cut safety device is added to the processor.
[0010]
In the figure, 1 schematically shows the formation of an orchestra. There are various ways of
organizing Orchestra 1, but it consists mostly of stringed instruments consisting of violin, viola,
cello, contrabass and harp, wind instruments consisting of trumpet, clarinet, flute, trombone,
bassoon and oboe, timpani etc. It consists of percussion instruments, and all of the instruments
are organized as important sound sources 21, 22 ... 2n. Although the numbers of the sound
sources 21, 22 ... 2n are not represented in the drawing, they are constituted by a large number
of musical instruments.
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[0011]
The sounds emitted from the sound sources 21, 22... 2n are collected through the microphones
31, 32... 3n provided as many as the number of the sound sources, enter the microphone
preamplifiers 41. At the same time as adjusting to an analog signal or digital signal), MIDI signals
are added (or not added) for each channel, multichannel recording for the number of channels as
many as the number of sound sources 21, 22 ... 2n It is designed to be recorded by a reproducing
apparatus (recording method is analog method or digital method) 5.
[0012]
The multi-channel recording / reproducing apparatus 5 has sufficient recording and reproducing
buffer so that the channels of the above-mentioned number of channels can be separated and
independent at the time of recording and reproduction, and the channels can apparently be
simultaneously recorded and reproduced simultaneously. It is not necessary to have recording
tracks as many as the number of channels in parallel.
[0013]
The multi-channel recording and reproducing apparatus 5 can create a multi-channel recording
medium (magnetic tape, CD, hard disk, memory card, etc.) and can reproduce it.
[0014]
In addition, since the figure shown in this embodiment is a logical conceptual diagram, the case
where it records simultaneously in the state which organized the orchestra is shown, but in fact it
is separately for each sound source also temporally and spatially Of course it may be recorded on
the.
[0015]
The sound source may be one extracted from a synthesizer (including a sound source or a
sampler) as shown in FIG. 1 and FIG.
The synthesizer 6 is an electronic musical instrument having a network capable of generating
various sounds according to the player's intention or according to the command of a computer
(sequencer), and the audio signal and MIDI signal are taken out from the synthesizer 6 and the
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same as above. Recording and playback is possible.
[0016]
A feature of the synthesizer 6 shown in the present invention is that it has ports capable of
outputting independently as many as the number of musical instruments (timbers)
simultaneously.
However, even with the conventional several-ports, the multi-channel recording / reproducing
apparatus 5 can repeatedly record (record) only the required number of instruments, so that all
necessary instruments can be reproduced simultaneously at the time of reproduction. There is.
[0017]
The audio signal (MIDI signal) recorded in the multi-channel recording / reproducing device 5 is
reproduced by the device, and as shown in FIG. 1 and FIG. 2, the processor (controller, effector,
switcher, preamplifier, output amplifier, large according to need) The sound is emitted from the
speakers 81, 82,...
One or more of the speakers 81, 82 ... 8n are provided for each of the channels of the number of
sound sources 21, 22 ... 2n.
That is, if the number of sound sources is 120, for example, the number of speakers will also be
120 or more.
[0018]
Further, the multi-channel recording and reproducing apparatus 5 passes the sound from the
microphone and the synthesizer without passing through the recording and reproducing circuit
(bypass), and the processor (controller, effector, switcher, preamplifier, output amplifier, large
volume if necessary It is also possible for the speakers 81, 82,... 8n to be emitted through a cut
safety device 7).
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[0019]
The processor 7 is of course a multi-channel processor, and each of the channels can be
processed independently and simultaneously.
As shown in FIG. 2, the processor 7 processes an audio signal of each channel, an input switching
selection mixing control section 7a for switching or mixing the output signal of the audio signal
or the MIDI signal from the microphone 2 or the synthesizer 6, The effect section 7b for
producing various effects, and the switcher section for setting which speaker of which number of
channels is to be outputted to which speaker (switched by a channel designation signal added to
each sound source). This may not depend on the channel designation signal. Of course, it may be
a manual switch. ) 7c, the preamplifier section 7d for the above-mentioned number of channels,
and the main (output) amplifier section 7e, characterized in that it has connectors for speaker
output lines for the number of speakers corresponding to the above-mentioned number of
channels. .
[0020]
The respective units 7a to 7e of the processor 7 may be independent modules and physically
separated, and may be connected by wire or wireless of the above-mentioned number of
channels.
[0021]
Furthermore, in the processor 7, when the output of the amplifier or speaker of a certain channel
(or plural) is insufficient, the amplifier or speaker of the peripheral channel centering on the
amplifier or speaker of the insufficient output is supplemented with an output. It is also a big
feature that can be set to receive.
[0022]
As shown in FIG. 3, a loud volume cut safety device is interposed between the preamp unit 7d
and the main (output) amplifier unit 7e to prevent the speaker group from generating a loud
sound exceeding human tolerance. Sometimes.
The safety device comprises a control unit 7f that calculates the sum of sound levels (for all
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channels) for each channel within a certain appropriate time, and a switch unit 7g that actually
cuts the channel.
By attaching the switch 7g to the output side of the main amplifier 7e, the safety can be further
enhanced.
[0023]
The control unit 7f can have the function of the signal delay unit 7h for each channel depending
on the control time required for calculation or the like. Whether all channels are cut or partial cut
depends on the control method. Also, how to recover depends on the control method.
[0024]
Furthermore, the feature of the present invention is that it can encompass the previous method
using the principle of two-channel recording and two-channel reproduction. Therefore, the
existing system can be used together in and out of this system, and the effect can be enhanced
synergistically. In particular, the reverberation effect is unique to the system of the present
invention.
[0025]
Therefore, the arrangement of the speakers in the home, the concert hall, the outdoors, etc. may
be freely changed (including movement by physical movement and replacement to the input
terminal) depending on the purpose.
[0026]
Next, the usage mode of the present application device will be described.
(1) When there is an actual sound source (musical instrument) a) Recording (recording) mode
sound source (musical instrument) 21 → microphone 31 → recording / reproducing device 5
sound source (musical instrument) 22 → microphone 32 → recording / reproducing device 5
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sound source (musical instrument) 23 → Microphone 33 → Recording / reproducing device 5
.................. Sound source (musical instrument) 2 n → Microphone 3 n → Recording / reproducing
device 5
[0027]
b) Playback mode recording / playback device 51 → processor 7 → speaker 81 recording /
playback device 52 → processor 7 → speaker 82 recording / playback device 53 → processor 7
→ speaker 83 ..................... recording / playback device 5n → processor 7 → speaker 8n Sound
source (instrument) 21 → microphone 31 → processor 7 → speaker 81 sound source
(instrument) 22 → microphone 32 → processor 7 → speaker 82 sound source (instrument) 23
→ microphone 33 → processor 7 → speaker 83 ..................... Sound source (instrument) 2 n →
microphone 3 n → processor 7 → speaker 8 n
[0028]
(2) The recording mode and the reproduction mode in the case of a sound source (instrument)
such as a synthesizer are as follows.
a) Recording mode sound source (synthesizer) → synth effector → recording / reproducing
device 5 sound source (synthesizer) → synth effector → recording / reproducing device 5 sound
source (synthesizer) → synth effector → recording / reproducing device 5 .................. sound source
(Synthesizer) → Effector for synth → Recording and playback device 5
[0029]
b) Playback mode recording / playback device 5 → processor 7 → speaker 81 recording /
playback device 5 → processor 7 → speaker 82 recording / playback device 5 → processor 7 →
speaker 83 .................. recording / playback device 5 → processor 7 → speaker 8n Sound source
(synthesizer) → processor 7 → recording / reproducing device 5 sound source (synthesizer) →
processor 7 → recording / reproducing device 5 sound source (synthesizer) → processor 7 →
recording / reproducing device 5 ............ sound source (synthesizer) → processor 7 → Recording
and playback device 5
[0030]
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In the above-mentioned playback mode, the combination of the sound source and the speaker
can be instantly recombined by a processor, sequencer or the like.
For example, it is possible to change the formation of the musical instrument from the middle of
the music.
[0031]
As described above, the present invention is characterized by including the recording /
reproducing unit having the number of channels equal to the number of sound sources and one
or more speakers for each channel, so that each speaker is free. Since it can be freely arranged,
the arrangement of the actual sound sources can also be the same as sorting the actual sound
sources according to the purpose, and an audio device up to now that can create music of a
completely new genre Effects that can not be obtained.
[0032]
In addition, it is possible to easily set the speakers that match the characteristics of the sound
source (instrument), so that it has an excellent effect of being able to create a delicate and
powerful sound field that is as close as possible to live music.
[0033]
Furthermore, if the shape of the speaker is designed to the shape of each musical instrument, or
if the robot doll is playing, a visual effect is produced and a new effect is generated.
[0034]
Usually, in the case of multi-channel recording, etc., it is necessary to perform a mix-down
combining operation / work by a mixer, but the present invention has an effect that this can be
omitted.
[0035]
Furthermore, since recording with the number of channels equal to the number of sound sources
and creation of a recording medium and reproduction thereof are possible, each sound can be
processed separately later.
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Therefore, the data of sound and music according to the present invention can add value and can
greatly enhance the utility value in constructing a database.
[0036]
Furthermore, it is possible to integrate several chips or one chip except for the external recording
device having mechanical moving parts and the main amplifier (output amplifier) in the system of
the present invention.
[0037]
In the second aspect of the invention, since the large volume cut safety device is installed in the
multi-channel processor between the recording and reproducing unit and the speaker, the system
can not be physically accepted due to a system failure or noise. The effect of producing no loud
sound is produced.
[0038]
Brief description of the drawings
[0039]
1 is an explanatory view schematically showing the present invention.
[0040]
2 is an explanatory view showing an example of a processor.
[0041]
3 is an explanatory view of the case where a large volume cut safety device is added to the
processor.
[0042]
Explanation of sign
[0043]
DESCRIPTION OF SYMBOLS 1 orchestra 21 22 ... 2 n sound source (instrument) 31 32 ... 3 n
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microphone (mike) 41 42 ... 4 n preamplifier for microphone 5 multi-channel recording /
reproducing apparatus 6 synthesizer 7 processor (controller, effector, switcher, preamplifier,
output amplifier, etc. Including 81), 82 ... 8n speakers
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