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JPH07236200

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JPH07236200
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
centralized control device for a sound field regulator which centrally controls a plurality of sound
field regulators arranged at a plurality of places in order to control the sound field at various
places in a sound field space.
[0002]
2. Description of the Related Art In PA (Public Address) control of a large-scale hall, etc., a PA
speaker system is disposed at each part in the hall, and the frequency characteristic at each
position is controlled so that the reproduction sound field for the audience becomes appropriate.
The acoustic characteristics such as reverberation characteristics are adjusted. These
adjustments are made by sound field adjusters such as equalizers arranged in each part.
Conventionally, the adjustment to this kind of sound field adjuster is generally made by directly
operating the adjustment knob disposed on the operation panel of the sound field adjuster, but in
this case, an ideal listening position Can not be adjusted while listening to the actual sound. For
this reason, a system has also been developed which uses a remote controller to adjust the sound
field adjuster at an appropriate position.
[0003]
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1
However, in a conventional system for adjusting a sound field adjuster using a remote controller,
a large number of sound field adjusters installed at each place of a hall are individually adjusted
to be a whole. When performing adjustment work to obtain an optimal sound field, it is necessary
to carry out work such as loading, adjustment, and saving of parameter data for each sound field
adjuster while switching the sound field adjusters one by one. The adjustment work becomes
complicated in proportion to the number of sound field adjusters. In addition, since the optimum
sound field characteristics are different for each scene such as vocals, percussions, orchestras,
etc., it is more difficult to adjust multiple sound field adjusters for each scene. Furthermore, even
in the case of switching these scenes, it is necessary to switch the plurality of sound field
adjusters one by one to specify the parameter data matched to each scene, which causes a
problem that the load on the operator is large.
[0004]
The present invention has been made to solve such problems, and it is an object of the present
invention to provide a centralized control device of a sound field regulator capable of facilitating
centralized management of a large number of sound field regulators. . Another object of the
present invention is to provide a centralized controller for a sound field regulator that can
extremely easily create an optimum sound field for each scene using a large number of sound
field regulators. .
[0005]
According to the present invention, a central controller for a sound field regulator stores
parameter data for sound field control and gives a sound field effect based on the parameter data
to an input sound signal. A centralized control device for a sound field regulator that centrally
controls a plurality of sound field regulators in a plurality of locations for sound field control in a
predetermined sound field space, wherein all the sound field regulators Data receiving means for
receiving parameter information stored in the sound field adjusters and information on the sound
field adjusters, and collective data including the information from the information about the
sound field adjusters received by the data receiving means and the parameter data Batch data
creation means, storage means for storing various information received by the data reception
means and batch data created by the batch data creation means, and the batch data Display
means for displaying the screen information representing each of the sound field adjusters based
on the data and the screen information for adjusting the parameters, and parameter data of each
of the sound field adjusters based on the screen information displayed on the display means The
parameter data adjusting means for correcting the batch data stored in the storage means on the
basis of the correction information inputted by the input means, and the respective sound field
adjusters Data transmission means for transmitting to the sound field adjuster data necessary for
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matching the mismatched portion between the parameter data received from the unit and the
batch data.
[0006]
In addition, another centralized control device for a sound field adjuster according to the present
invention stores parameter data for sound field control for a plurality of scenes and gives a
sound field effect based on the parameter data for each scene to an input sound signal. A
centralized control device for a sound field regulator that performs centralized control in a state
where a plurality of sound field regulators are arranged at a plurality of locations for sound field
control in a predetermined sound field space, all the sound field adjustments Data receiving
means for receiving information related to the sound source and parameter data stored in the
sound field adjusters, information about the sound field adjuster received from the data receiving
means and parameter data for the information and parameters for each scene Batch data
creation means for creating batch data including combination information of data, various
information received by the data reception means, and the batch data creation means Storage
means for storing the batch data created in the above, and display means for displaying screen
information representing the sound field adjusters, screen information for parameter adjustment,
and screen information for scene specification based on the batch data , Input means for
inputting correction information and scene specification information for correcting parameter
data of each of the sound field adjusters based on the screen information displayed on the
display means, and correction information inputted by the input means Parameter data adjusting
means for correcting the batch data stored in the storage means based on the sound data
necessary for matching the unmatched portion between the parameter data received from each
of the sound field regulators and the batch data with the sound The parameter corresponding to
the scene specified based on the scene specification information transmitted to the field adjuster
and input from the input means Data transmission means for extracting combination information
of data from the batch data and transmitting the parameter data of each of the sound field
regulators to each of the sound field regulators in order to batch switch the data. .
[0007]
According to the present invention, the parameter data of all the sound field regulators are stored
as batch data in the storage means separately from the parameter data stored in each of the
sound field regulators, and the adjustment of the parameter data is It is sufficient to carry out
only this batch data.
For this reason, as in the prior art, it is not necessary to perform troublesome operations such as
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switching the sound field adjusters one by one and loading, adjusting and saving parameter data,
and collectively setting parameter data of all the sound field adjusters. Can be managed.
[0008]
At the time of adjustment of parameter data, screen information representing each sound field
adjuster and screen information for parameter adjustment are displayed on the display means,
and collective data can be appropriately adjusted based on these screen information.
Therefore, while considering the image of the entire system, it is possible to proceed with the
data adjustment operation as if it were an image directly operating the actual sound field
adjuster.
[0009]
Note that even if there is a mismatch between the parameter data of each sound field adjuster
and the batch data due to the batch data being corrected, it is necessary through the data
transmission means to eliminate the mismatch. Data is sent to each sound field regulator, so that
there is always an alignment between each sound field regulator and the batch data. For this
reason, according to the present invention, the sound field adjuster itself does not operate at all
other than the power switch after the initial setting without being aware of which sound field
adjuster has been changed and how to change it. Each sound field adjuster can be adjusted at a
desired listening position.
[0010]
In addition, in a system in which parameter data is set for each scene, combination data of
parameter data for each scene is included in batch data, and scene designation information for
designating the next scene at the time of scene switching is input. Then, since combination
information of parameter data corresponding to a designated scene is extracted from the batch
data and transmitted to the sound field adjusters, batch switching of parameter data of each
scene becomes possible. This makes it possible to extremely easily create the optimal sound field
for each scene.
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[0011]
Embodiments of the present invention will be described hereinafter with reference to the
accompanying drawings. FIG. 1 is a block diagram showing the configuration of a sound field
control system according to an embodiment of the present invention. This system comprises a
plurality of sound field adjusters 1a, 1b,..., 1n, a central control unit 2 for centrally managing
these sound field adjusters 1a to 1n, and these sound field control units 1a to 1n and a central
control unit A communication cable 3 and a communication interface 4 are provided to transmit
and receive predetermined data between the two.
[0012]
The sound field adjusters 1a, 1b, 1c,..., 1n are, for example, an equalizer, a reverberation adjuster,
a modulator, a pitch shifter, etc. to input sound signals based on parameter data that determines
sound field characteristics adjusted by external control. A field effect is given and distributed at
various places in a sound field space to be controlled, such as a concert hall, a theater, a
broadcast studio, etc., and they are mutually connected via a communication cable 3. A unique
address is added to each of the sound field adjusters 1a to 1n on the network, and this address
comprises, for example, a group ID and a device ID. The sound input devices 5a to 5n such as a
microphone, a player, and a MIDI musical instrument are connected to the input parts of the
sound field adjusters 1a to 1n, and an amplifier, a speaker system, etc. are connected to the
output parts of the sound field adjusters 1a to 1n. Sound output devices 6a to 6n are connected.
Each of the sound field adjusters 1a to 1n is provided with memories 7a to 7n for storing
parameter data for sound field control for a plurality of scenes.
[0013]
The central control unit 2 is composed of a general-purpose computer and a controller or the like
configured with software necessary for sound field control or a dedicated circuit. The central
control unit 2 is provided with a memory 11 and stores the project data in the memory 11.
Project data is a batch data grouped in a batch file format based on information related to all the
connected sound field adjusters 1a to 1n and parameter data stored in the memories 7a to 7n of
the sound field adjusters 1a to 1n. It is. It is necessary that the data stored in each of the sound
field adjusters 1a to 1n and the project data be always consistent, and for that reason, the data
receiving unit 12 adjusts the sound field adjusters 1a to 1n at a predetermined timing. Receive
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the necessary data from The received data is constructed as shared data by the shared data
construction unit 13 and stored in the memory 11.
[0014]
The connection recognition unit 14 searches the sound field adjusters 1a to 1n connected to the
central control device 2 by external designation when the system is activated or when the device
configuration changes, in order to construct the shared data. recognize. Project data is created
and edited by the project data creation / editing unit 16 based on the operation of the operation
unit 15 composed of input means such as a keyboard and a mouse. The project data includes
display information indicating the types, positions, etc. of the connected sound field adjusters 1a
to 1n, and based on this information, the display control unit 17 displays a display unit such as a
CRT display or an LCD display. An icon indicating the sound field adjusters 1 a to 1 n is displayed
at the corresponding position 18.
[0015]
The adjustment of the parameter data of each of the sound field adjusters 1a to 1n is performed
by the parameter data adjusting unit 19 correcting the project data based on the operation of the
operation unit 15. At this time, the display control unit 17 displays a window for parameter
adjustment which artificially expresses the operation panel of each of the sound field adjusters
1a to 1n. When the project data is corrected, the data transmission unit 20 changes the data
generated by the correction in real time in order to match the data stored in each of the sound
field adjusters 1a to 1n with the project data. Transmit to the corresponding sound field adjusters
1a to 1n. In addition, the data transmission unit 20 collectively transfers scene information
included in project data to the respective sound field adjusters 1 a to 1 n at the time of scene
switching based on the operation of the operation unit 15. The external storage device 21 stores
project data as a batch file.
[0016]
Next, the operation of the system configured in this way will be described. FIG. 2 is a flowchart
showing processing at the time of activation of the central control unit 2. When the central
control device 2 is activated, search processing of the connected sound field adjusters 1a to 1n is
first executed. The connection recognition unit 14 sequentially transmits a search packet to each
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of the sound field adjusters 1a to 1n (S1), and when receiving a packet indicating the presence
from the sound field adjuster 1i in response thereto (S2), the sound field The ID (group ID, device
ID) of the coordinator 1i is requested (S3) and received (S4). By this processing, the sound field
control device 3 recognizes controllable sound field adjusters 1a to 1n (S5). The recognized
sound field adjusters 1a to 1n are allocated to predetermined icons in the display control unit 17
(S6).
[0017]
Next, data construction processing is performed. This data construction process differs
depending on which of the two types of modes the system has (S7). That is, the first mode is a
device mode in which the master device is a device (sound field adjuster 1), and the central
control device 2 functions as a mere remote control device as a terminal. The second mode is a
host mode in which the master device is a host (central control device 2), and the central control
device 2 functions as a controller that centrally controls all the connection-recognized sound
field adjusters 1a to 1n. In the case of the host mode, the data transmission unit 20 and the data
reception unit 12 request all digital information as device information from all the connectionrecognized sound field adjusters 1a to 1n (S8) and receive them (S9). Further, in the device mode,
the data transmission unit 20 and the data reception unit 12 request only information on the
program that is active at that time among the device information as current information (S10),
and receive (S11). Based on these pieces of information, the data is reorganized by the shared
data construction unit 13, and shared data is generated (S12).
[0018]
For example, as shown in FIG. 3, shared data is added with information such as the number of
connected devices, group ID, device ID and model ID in addition to device information or current
information fetched from each of the sound field adjusters 1a to 1n. It is For each piece of device
information, the program No. stored in the sound field adjuster 1i. , Program name, parameter
data of the program, etc. are included. One program is generated corresponding to one scene.
The shared data is stored in storage means such as a non-volatile memory or a backed up RAM,
the external storage device 21 (S13).
[0019]
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The sound field adjusters 1a to 1n whose connection is recognized are displayed as an icon 31
on the sound field space image by the display control unit 17 as shown in FIG. 4, for example. At
this time, the position of the icon 31 can be moved to an arbitrary position by dragging operation
of the mouse of the operation unit 15 or the like. The background 32 allows any image to be
applied by means of a known image generation process. This makes it possible to easily grasp the
image of the entire system, such as the actual holes and the locations of the sound field adjusters
1a to 1n, and improves operability when centrally controlling a large number of sound field
adjusters 1a to 1n. Lead to The coordinates of the display position of the icon 31 and the number
of the background 32 are registered in project data or shared data.
[0020]
If there is a change in the configuration of the connection-recognized sound field adjusters 1a to
1n, a mismatch occurs between the data of the centralized control device 2 and the data on the
sound field adjusters 1a to 1n, so periodically The connection monitoring process as shown in
FIG. 5 is executed. After the connection recognition process (S21) described above, this process
determines whether there is a change in the device configuration (S22). If there is no change, the
process ends as it is, and if the device configuration increases, the process described above Data
construction processing (S23) is executed. When the device configuration is reduced, the color of
the icon 31 corresponding to the reduced sound field adjuster 1i is changed to, for example, a
blackish color without executing the data construction process (S24). As a result, it is possible to
immediately recognize the sound field adjuster 1i in which a problem such as an unexpected
power cord disconnection or a disconnection of the connection cable has occurred. This process
may be performed at any time designated by the operator instead of periodically.
[0021]
Next, the procedure for creating and editing project data will be described. FIG. 6 is a flowchart
of the process of creating / editing project data. When the project creation / editing command is
executed, the project creation / editing unit 16 is activated to first refer to shared data (S31).
Next, a window display as shown in FIG. 4 appears on a part of the display screen of the display
unit 18. When the icon 31 corresponding to the sound field adjuster 1i desired to be adjusted
among the icons 31 of the sound field adjusters 1a to 1n that can be recognized in this way is
double-clicked and the display of the operation panel window is instructed, the display control
unit 17 The control panel window is displayed on the screen of the display unit 18 (S32).
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[0022]
FIG. 7 shows an example of the window of the graphic equalizer image, and FIG. 8 shows an
example of the window of the parametric equalizer image. The parameter data of the designated
program is corrected by dragging and clicking the mouse of the operation unit 15 on these
windows (S33). In particular, in the case of a window of a parametric equalizer image, the
circular rotary knobs located at the bottom can be increased or decreased by clicking on the left
and right arrow parts above each other, but this knob display It is also possible to manipulate an
image that is actually drawn by using the pointer of the mouse. In the case of such a knob
rotation type operation, usability is improved if restrictions are placed on the rotational speed
and the rotational angle of the knob in order to prevent the knob from being turned too much.
For example, the actual knob reaches the maximum value clockwise from the minimum value and
reaches the minimum value counterclockwise from the maximum value, but when using the
operation on the window display in this way, the clock from the maximum value A so-called
abrupt change may occur, such as reaching the minimum value around, or conversely, reaching
the maximum value from the minimum value counterclockwise. Such a movement can not be an
actual operation, and further, this control relates to the volume level to the speaker, and in
consideration of the adverse effect on the speaker device due to the sudden level change etc. It
does not respond to mouse operations that cause sudden changes. In the case of a parametric
equalizer, the parameters to be adjusted are the center frequency, the gain and Q of each
frequency, etc. In addition to this, the phase shift amount etc. can be adjusted. In an apparatus
capable of multitasking processing, the operability and flexibility of parameter adjustment are
further improved by simultaneously displaying the operation panel windows of a plurality of
sound field adjusters 1i and making them simultaneously adjustable.
[0023]
When the parameter data is corrected, the data on the sound field adjuster 1i and the data on the
centralized control device 2 do not match, so the data transmission unit 20 has a group ID, a
packet ID, as shown in FIG. Packet data consisting of the data ID and the amount of data change
is transmitted to the corresponding sound field adjuster 1i in real time (S34). As a result, the
parameter data on the sound field adjuster 1i also changes, so that it is possible to find the
optimum parameter while listening to the actual sound at the operation position of the
centralized control device 2.
[0024]
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When adjustment of an arbitrary number of sound field adjusters 1i is completed (S35), a
combination of these parameter data is registered as a scene (S36). The scene information
includes the configuration of the sound field adjuster 1i to be used and the program No. This is
done by specifying the configuration of the icon, the icon information to be assigned, etc. As the
icon of the scene, for example, as shown in FIG. 10, the one of the image most matched to the
scene is selected. When all necessary scenes are registered (S37), these are registered as project
data (S38).
[0025]
The project data to be registered is, as shown in FIG. 11, device screen information including
background, icon coordinates, screen size, etc., group ID of each sound field adjuster 1a to 1n,
device ID, device name and device information Device configuration, program no. , And scene
information including icon information and the like.
[0026]
When scene switching is performed using the project data configured in this way, the scene icon
registered earlier is designated by the operation of the mouse of the operation unit 15.
When a specific scene icon is specified, as shown in the flowchart of FIG. 12, the data
transmitting unit 20 searches the project data for scene information having the specified icon
information (S41), and the device configuration of the scene information is obtained. And
program no. The configuration is extracted (S42). Then, the data transmission unit 20 instructs
the corresponding sound field adjuster 1i to group ID, packet ID, data ID and program No. as
shown in FIG. And transmit the data of (S43), and collectively switch the program of the
corresponding sound field adjuster 1i.
[0027]
As described above, the operator can adjust individual sound fields by storing data on all the
sound field adjusters 1a to 1n as project data on the central control unit 2 side and performing
operations on the project data. The adjustment operation can be performed as if all the sound
field adjusters 1a to 1n exist on the centralized control device 2 without being conscious of the
data exchange with the units 1a to 1n at all. Also, by including information of each scene in the
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project data, scene switching may be specified for one project data, the operation at the time of
scene switching is extremely simplified, and scene switching in real time is also possible. It will
be possible.
[0028]
As described above, according to the present invention, the parameter data of all the sound field
regulators are stored as batch data in the storage means separately from the parameter data
stored in each of the sound field regulators. Since adjustment of parameter data is performed
only on this batch data, it is troublesome to switch the sound field adjusters one by one and load,
adjust and save parameter data as in the prior art. No operation is required, and parameter data
of all sound field regulators can be managed collectively.
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