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DESCRIPTION JP2007259172

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DESCRIPTION JP2007259172
PROBLEM TO BE SOLVED: To display an algorithm of an apparatus for performing audio signal
processing by combining various software modules such as a filter, a router, and a mixer as a
block diagram as shown in FIG. Here, when the audio signal to be output from the mixing device
is muted, the module that is the cause is identified promptly. SOLUTION: Normal connecting lines
250 and 280 connecting between blocks are displayed as "thick solid lines". A coupled line 270
whose output level is less than a predetermined value is displayed as a thin line. Also, the
coupled line 260 where the audio signal is muted is indicated by a broken line. Editing the
module's parameters on the block diagram redraws the relevant bond lines based on the editing
results. [Selected figure] Figure 5
Processing system diagram display device and program
[0001]
The present invention relates to a processing system diagram display apparatus and program
suitable for use in audio signal processing.
[0002]
Non-Patent Document 1 discloses a mixing apparatus that performs various processes on an
audio signal.
The mixing apparatus is provided with various software modules (hereinafter simply referred to
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as modules) such as a filter, a router, a mixer, etc. The user can use modules and connection
relationships of these modules as a graphic user interface (GUI). Can be edited by That is, in the
mixing apparatus or the computer connected thereto, a block diagram formed by appropriately
connecting a plurality of module blocks corresponding to each module is displayed, and the user
can add or delete modules on the block diagram. , Add / delete connection lines, etc. freely. When
a module block is double-clicked with a mouse or the like, it is also possible to display a
parameter setting window for setting detailed parameters of the module. Further, Patent
Document 1 discloses a technique for searching for a route of a selected wire connection and
changing (displaying a highlight) a display mode of the searched route. However, this technique
does not change the display mode based on what kind of signal is flowing in each path.
[0003]
JP, 10-222549, A "DME Designer instruction manual", Yamaha Corporation, 2004, p. 23-44
[0004]
Here, although the user expects the audio signal to be output from the mixing device, if the audio
signal is actually muted, or if the audio signal level is extremely low, either The module's
parameters are often set incorrectly by the user.
Here, in order to specify which parameter of the module is incorrect, it is necessary to
individually open and confirm the parameter setting windows of all the related modules, which
makes the operation complicated. The present invention has been made in view of the abovedescribed circumstances, and provides a processing system diagram display device and program
capable of quickly finding a module whose parameter is inappropriate when a defect occurs in an
audio signal. The purpose is to
[0005]
In order to solve the above problems, the present invention is characterized by comprising the
following configuration. In addition, the inside of a parenthesis is an illustration. In the
processing system diagram display device according to claim 1, an audio signal processing device
comprising a combination of a plurality of audio signal processing modules each outputting an
output signal based on an audio signal processing parameter and an input signal. A processing
system diagram display device for displaying a processing system diagram, corresponding to a
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plurality of module images (202 to 240) corresponding to the respective audio signal processing
modules and signal transmission paths between the respective audio signal processing modules
The audio signal processing module outputs the output based on display means (6) for displaying
the connecting lines connecting the module images (202 to 240) and the parameters set in the
audio signal processing modules. Connection line display mode setting means (SP32) for setting
the display mode of the connection line corresponding to the signal transmission path outputting
the signal And wherein the door. Further, according to the second aspect of the present
invention, in the processing system diagram display device according to the first aspect, the
combined line display mode setting means (SP32) comprises a parameter set in each of the audio
signal processing modules and A display mode of a coupled line corresponding to a signal
transmission path through which the audio signal processing module outputs the output signal is
set based on an input signal input to each audio signal processing module, An audio signal
processing module that receives an output signal of the audio signal processing module as an
input signal is a second audio signal processing module, and the audio signal processing
parameter related to the first audio signal processing module is changed, as a condition. The
second audio signal processing module sets a display mode of a coupled line corresponding to a
signal transmission path for outputting an output signal. And wherein the door. Furthermore, in a
configuration according to claim 3, in the processing system diagram display device according to
claim 1 or 2, the parameter is a parameter for changing the gain of each of the audio signal
processing modules, and the coupled line display mode The setting means (SP32) determines
whether each audio signal processing module outputs an audio signal equal to or higher than a
predetermined low level threshold when an audio signal of a predetermined reference level is
supplied to the audio signal processing apparatus. Setting the display mode of the combined line
on the basis of. Further, in the program according to claim 4, a processing system of an audio
signal processing apparatus comprising a combination of a plurality of audio signal processing
modules each outputting an output signal based on an audio signal processing parameter and an
input signal. A program executed in a processing system diagram display device for displaying a
figure, comprising a plurality of module images (202 to 240) corresponding to the respective
audio signal processing modules, and a signal transmission path between the respective audio
signal processing modules The audio signal processing module outputs the output based on a
display process for displaying the connecting lines that couple the module images (202 to 240)
with each other and parameters set in the audio signal processing modules. Coupled line display
mode setting process (for setting a display mode of a coupled line corresponding to a signal
transmission path that outputs a signal Characterized in that to execute the P32) and a control
unit (CPU 22).
[0006]
As described above, according to the present invention, based on the parameters set in each
audio signal processing module, the display mode of the coupled line corresponding to the signal
transmission path to which the audio signal processing module outputs the output signal is set. If
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the audio signal is muted, or if the audio signal level is very low, the audio signal processing
module that is the cause can be identified quickly.
[0007]
1.
Hardware Configuration of Embodiment Next, the configuration of a mixing apparatus 1
according to an embodiment of the present invention will be described with reference to FIG.
In the figure, reference numeral 2 denotes an operation unit, which comprises a keyboard for
character input, a pointing device such as a mouse, and the like. A detection circuit 4 detects the
operation state of the operation unit 2. A display unit 6 is constituted by a dot matrix display, and
displays various information to the user under the control of the display circuit 8. An audio signal
I / O unit 10 performs input and output of analog audio signals with an external device. Since all
processing in the mixing apparatus 1 is performed by digital processing, the audio signal I / O
unit 10 converts an analog signal input from the outside into a digital signal and converts the
internal digital signal into an analog signal. DA converter etc. are provided. A signal processing
circuit 12 performs various processing on the digital audio signal supplied from the audio signal
I / O unit 10, and outputs the result via the audio signal I / O unit 10.
[0008]
A CPU 22 controls other components via the communication bus 16 based on a program (details
will be described later) stored in the ROM 18. Reference numeral 20 denotes a RAM, which is
used as a work memory of the CPU 22. A communication interface 14 inputs and outputs various
information to and from an external device. In the illustrated example, a computer 36 is
connected to the communication interface 14. A dedicated application program for controlling
the mixing apparatus 1 is installed in the computer 36. In addition, the computer 36 is provided
with an input device such as a keyboard and a mouse, and a display, which may be used in place
of the operation unit 2 and the display unit 6 in the mixing apparatus 1 according to the
application program. Can. Further, in the audio signal I / O unit 10, a plurality of microphones
30-1 to 30-m and a plurality of amplifiers 32-1 to 32-n are connected. The audio signals supplied
to the amplifiers 32-1 to 32-n are amplified and emitted through the speakers 34-1 to 32-n.
[0009]
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2.
Operation of Example 2.1. Display Example of Various Module Blocks and Parameter Setting
Window In the signal processing circuit 12, various software modules (hereinafter simply
referred to as modules) can be realized by microprograms such as filters, routers, mixers, etc.
Modules and their connection relationships can be edited by a graphic user interface (GUI). That
is, in the display unit 6, a plurality of module blocks are displayed, and a block diagram is
displayed by connecting these module blocks to each other by a connecting line. Here, each
module block corresponds to a module. In addition, although transmission and reception of audio
signals are performed between modules, coupling lines are drawn so as to connect each block
along a signal transmission path between these modules.
[0010]
The user can freely add / delete modules, add / delete connection lines, etc. on this block
diagram. When a module block is double-clicked with a mouse or the like, it is also possible to
display a parameter setting window for setting detailed parameters of the module. Here,
examples of various module blocks and corresponding parameter setting windows are shown in
FIGS. 2 to 4. In these figures, 100, 120, 140, 160, 180, and 300 are module blocks, and doubleclicking any of them, the corresponding one of the parameter setting windows 110, 130, 150,
170, 190, 310 Will be displayed.
[0011]
First, in FIG. 2A, reference numeral 100 denotes an oscillator block, which represents the
function of the oscillator module. A name portion 100a displays the name of the oscillator block
100 ("Oscillator" in the illustrated example). Reference numeral 100 b denotes an attribute
display unit, which displays the attribute of the oscillator block 100. In the illustrated example,
since the oscillator block 100 relates to a monaural oscillator, "Mono" is displayed. An output
terminal portion 104 represents a terminal for outputting a signal, and a connecting line 105 for
connecting the oscillator block 100 to another module is connected here. An output terminal
name display unit 100d displays the name (OUT1) of the output terminal unit 104. When the
oscillator block 100 is double-clicked by the mouse, the parameter setting window 110 for the
oscillator module is displayed on the display unit 6. In the parameter setting window 110,
reference numerals 112, 113, and 114 denote oscillation frequency setting buttons, which select
alternatively one of "100 Hz", "1 kHz", and "10 kHz". A knob image 115 is used to adjust the
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output level of the oscillator module. A level meter 116 displays the output level.
[0012]
Next, in FIG. 2B, reference numeral 120 denotes a fader block, which represents the function of
the fader module that adjusts the audio signal level. Similar to the oscillator block 100, the fader
block 120 is provided with a name portion 120a, an attribute display portion 120b, an output
terminal name display portion 120d, and an output terminal portion 124, and the output
terminal portion 124 is connected to a coupling line 125. ing. Further, the fader block 120 is
provided with an input terminal portion 122, to which a coupling line 123 is connected.
Furthermore, in the vicinity of the input terminal unit 122, an input terminal name display unit
120c is provided, and the name (IN1) of the input terminal unit 122 is displayed. When the fader
block 120 is double-clicked with the mouse, the parameter setting window 130 for the fader
module is displayed on the display unit 6. Inside the parameter setting window 130, 132 is an on
/ off button, which switches the on / off state of the output. Reference numeral 134 denotes a
fader image, which is dragged by the mouse to increase or decrease the output gain of the fader
module.
[0013]
Next, in FIG. 2C, reference numeral 140 denotes a high pass filter block, which represents the
function of the high pass filter module. Similar to the fader block 120, the high pass filter block
140 is provided with a name part, an attribute display part, an output terminal name display part,
and an input terminal name display part. However, in the following figures, these symbols are
omitted. The high-pass filter block 140 is provided with an input terminal portion 142 and an
output terminal portion 144, and the coupled line 145 is connected to the output terminal
portion 144, but the coupled line is connected to the input terminal portion 142. Absent.
Therefore, in such a state, the output level of the high pass filter block 140 is "-.infin. (0 for linear
value)". When the high pass filter block 140 is double-clicked with the mouse, the parameter
setting window 150 for the high pass filter module is displayed on the display unit 6. Inside the
parameter setting window 150, 152, 153 and 154 are knob images, which respectively adjust
the input gain, cutoff frequency and output gain of the high pass filter module. A frequency
display unit 155 displays the cutoff frequency numerically.
[0014]
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Next, in FIG. 3A, reference numeral 160 denotes a router block, which represents the function of
the router module. In the illustrated example, the router block 160 has an input terminal portion
162 of “4” and an output terminal portion 164 of “2”, and coupled lines 163 and 165 are
connected to the respective terminals. The router module selects an input signal “2” of the
input signals of the “4” system and outputs it as an output signal of the “2” system, and the
input terminal section 162 and the output terminal section 164 These correspond to these input
and output signals. When the router block 160 is double-clicked with the mouse, the parameter
setting window 170 for the router module is displayed on the display unit 6. Inside the
parameter setting window 170 is a matrix section 172 which displays a matrix of cells of "4"
rows and "2" columns corresponding to the number of input signals "4" and the number of
output signals "2". Then, when the user clicks an arbitrary cell in the matrix section 172 with the
mouse, the cell is selected and the “o” mark is displayed, and the input signal of the row
corresponding to the cell is the output signal of the corresponding column Selected as
[0015]
Next, in FIG. 3B, reference numeral 180 denotes a mixer block, which represents the function of
the mixer module. In the illustrated example, the mixer block 180 has an input terminal portion
182 of “2”, a normal output terminal portion 186 of “2”, and a MIX output terminal portion
184 of “1”. Here, the mixer module performs level adjustment of each of the input signals of
“2” system, outputs the result as a normal output signal, and outputs the result of mixing these
level adjustment results as a MIX output signal. is there. The input terminal section 182, the
normal output terminal section 186 and the MIX output terminal section 184 correspond to
these input / output signals. When mixer block 180 is double-clicked with a mouse, parameter
setting window 190 for the mixer module is displayed on display unit 6. Inside the parameter
setting window 190, 192, 194, and 196 are on / off buttons, which switch on / off states of the
normal output signal and the MIX output signal. Reference numerals 193, 195, and 197 denote
fader images, which, when dragged with the mouse, increase or decrease the level of the
corresponding output signal.
[0016]
Next, in FIG. 4, reference numeral 300 denotes a crossover block, which represents the function
of the crossover module. Here, the crossover module is composed of a group of filters for band
dividing an audio signal mainly for a multi-way speaker system. The illustrated crossover block
300 corresponds to a module for a "3" way speaker system, and includes one input terminal 302
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and high, middle (MID) and low (LOW). Output terminal portions 301H, 301M, and 301L are
provided. When the crossover block 300 is double-clicked with the mouse, a parameter setting
window 310 for the crossover module is displayed on the display unit 6. Inside the parameter
setting window 310 is a knob image 314, which adjusts the input gain of the crossover module.
Reference numeral 316 denotes a gain display unit, which numerically displays the adjusted
input gain. Reference numerals 324 and 334 denote knob images for setting a crossover
frequency, which respectively set a crossover frequency serving as a low / mid boundary and a
crossover frequency serving as a middle / high boundary.
[0017]
Reference numerals 326 and 336 denote frequency display units, which numerically display the
set crossover frequency. Reference numerals 318, 328 and 338 denote knob images for setting
the low, middle and high range output gains, respectively. The set output gains are displayed on
the gain display sections 320, 330 and 340, respectively. 322, 332, and 342 are mute buttons,
which switch on / off states of low-range, mid-range, and high-range mutes, respectively. Here,
when mute is set to the on state in any of the bands, the audio signal in the band is muted. A
characteristic display unit 312 graphically displays the output gain characteristics of low, middle,
and high frequencies. However, the content of the characteristic display unit 312 is not changed
depending on the on / off state of the mute. In the illustrated example, the output gain of "0.00
dB" is set for the low band and the high band, and the output gain of "-20.00 dB" is set for the
mid band only. Further, the mute button 342 related to the high band is set to the on state, and
the mute buttons 322 and 332 related to the low band and the middle band are set to the off
state. As a result, the high frequency range audio signal is muted.
[0018]
2.2.
Example of Display of Block Diagram Next, FIG. 5 shows an example in which a block diagram
200 is displayed on the display unit 6 by combining various module blocks. In FIG. 5, reference
numeral 202 denotes an input signal block, which represents an input terminal when an audio
signal is supplied from the audio signal I / O unit 10 to the signal processing circuit 12. When
the audio signal input to the audio signal I / O unit 10 is a microphone level signal, the audio
signal is amplified by the head amplifier provided in the audio signal I / O unit 10.
[0019]
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Reference numeral 204 denotes a level adjustment block, which represents a module for
adjusting the level of the input signal to the audio signal I / O unit 10. The level adjustment block
204 has the same function as that of the fader module according to the fader block 120 (see FIG.
2B). Also in the level adjustment block 204, as with the fader block 120, the name part 204a and
attributes A display unit 204b, an input terminal name display unit 204c, and an output terminal
name display unit 204d are provided. Furthermore, when the user performs a predetermined
operation, each block in the block diagram 200 displays a gain display unit in which the gain
between the input and the output of the corresponding module is described in decibel. In the
level adjustment block 204, 204e is a gain display unit. In the illustrated example, since the gain
displayed on the gain display unit 204e is "0.00 dB", it is understood that the level adjustment
block 204 does not particularly increase or decrease the level of the audio signal. In addition, in
each block which will be described later in FIG. 5, the code display of the name part, the attribute
display part, the input terminal name display part, the output terminal name display part and the
like is omitted.
[0020]
Reference numeral 206 denotes a PEQ (parametric equalizer) block, which represents the
function of the PEQ module that adjusts the frequency characteristics of the audio signal.
Reference numeral 208 denotes a delay block, which represents the function of the delay module
that delays the audio signal. Also in these modules, “00 dB” is displayed on the gain display
unit, in particular, because the level of the audio signal is not increased or decreased. 210 is a
crossover block, which is the same block as the crossover block 300 described in FIG. Further, it
is also assumed that the parameters set in the crossover block 210 here have the same values as
the parameters described in the parameter setting window 310 (FIG. 4). Crossover block 210 is
provided with output terminal portions 211H, 211M and 211L for high frequency (HIGH),
middle frequency (MID) and low frequency (LOW), so “3” Gain display portions 210e, 210f,
and 210g are provided.
[0021]
Here, “0.00 dB / Mute” is displayed on the high-frequency gain display unit 210e. This
indicates that although the high-pass gain is set to "0.00 dB", the mute button 342 (FIG. 4) is
actually turned off because it is set to the on state. In addition, although “-20.00 dB” is
displayed in the mid-range gain display section 210 f according to the set output gain, the output
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gain is a predetermined low gain threshold (for example, “−10.00 dB” If it is less than), the
output gain is displayed in red. Further, “0.00 dB” is displayed in the normal mode (for
example, black) according to the set output gain on the low-range gain display section 210 g. In
the other blocks, the gain display unit is displayed in the normal display mode unless otherwise
specified.
[0022]
A delay block 212 for the high frequency band at a stage subsequent to the output terminal unit
211H represents a function of a delay module for delaying the high frequency band signal.
Reference numeral 214 denotes a PEQ block for the high band signal, which represents the
function of the PEQ module that adjusts the frequency characteristic of the high band signal. A
level adjustment block 216 represents a module for adjusting the level of the high band signal.
Reference numeral 218 denotes a limiter block, which suppresses the maximum level of the high
band signal to a predetermined limit value. Although the limiter module increases and decreases
its gain according to the input signal level by its nature, the gain displayed on the gain display
section of the limiter block is the gain in the state where no limit is generated.
[0023]
In addition, similar modules for the middle band signal and the low band signal are provided
downstream of the output terminal units 211M and 211L. That is, the delay block 222
corresponding to the middle band signal, the PEQ block 224, the level adjustment block 226, the
limiter block 228, the delay block 232 corresponding to the low band signal, the PEQ block 234,
the level adjustment block 236, and the limiter block 238 It is displayed in the block diagram
200 in the same manner as the blocks 212 to 218 relating to the high band signal. An output
signal block 240 represents an output end when the signal processing circuit 12 outputs an
audio signal to the audio signal I / O unit 10.
[0024]
Here, the coupled line 250 from the input signal block 202 to the crossover block 210 is
indicated by "thick solid line". In addition, the coupled line 260 related to the high band signal
after the output terminal portion 211H of the crossover block 210 is represented by "thick
broken line", and the coupled line 270 related to the mid band signal after the output terminal
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portion 211M is "thin solid line" The coupled line 280 relating to the low frequency signal after
the output terminal unit 211L is represented by “thick solid line”. The reason why the display
modes of the connecting lines are different as described above will be described. First, since the
gain is set in each module, it is assumed that an audio signal of a predetermined reference level is
supplied from the audio signal I / O unit 10 to the signal processing circuit 12, and this reference
level When “0.00 dB” is set as “0.00 dB”, the output level in each module is the addition
result (the multiplication result if converted to a linear value) of the output gain of that module
and the modules up to the previous stage.
[0025]
Here, when the output level of the corresponding module is less than a predetermined low level
threshold (for example, "-10.00 dB"), the coupled line connected to the output terminal portion of
each block is displayed as "thin line" If it is above the low level threshold, it will be displayed as a
"thick line". Also, when the audio signal is muted in each module and the modules up to the
previous stage, the coupled line connected to the output terminal portion of the corresponding
block is displayed as "broken line", and is not muted. Displayed as "solid line".
[0026]
In the example shown in FIG. 5, from the input signal block 202 to the crossover block 210, the
output level of the corresponding module is always at or above the low level threshold (-10.00
dB), and the audio signal is not muted. From this point on, the connecting line 250 in this section
is displayed as "thick solid line". Further, the gain of the high band signal in the crossover block
210 is "0.00 dB" (see the gain display section 340 in FIG. 4), and the total of the gains up to the
former stage is also "0.00 dB". The output level of the band signal also becomes "0.00 dB".
However, the mute button 342 turns on the mute of the high band signal, and the high band
signal is actually muted, so the combined line 260 after the output terminal portion 211H is
displayed as "thick dashed line".
[0027]
Further, the gain of the mid-range signal in the crossover block 210 is “−20.00 dB” (see the
gain display section 330 in FIG. 4), and the total gain to the previous stage is “0.00 dB”. The
output level of the midrange signal is "-20.00 dB", which is a level below the low level threshold
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(-10.00 dB). In addition, since the mid band signal is not muted, the coupled line 270 after the
output terminal unit 211M relating to the mid band signal is displayed as “thin solid line”. In
addition, the gain of the low-pass signal in the crossover block 210 is "0.00 dB" (see the gain
display section 320 in FIG. 4), and the total gain to the previous stage is "0.00 dB". The output
level of the low band signal is "0.00 dB", which is equal to or higher than the low level threshold
(-10.00 dB). In addition, since the low band signal is not muted, the coupled line 280 after the
output terminal portion 211L relating to the low band signal is displayed as "thick solid line".
[0028]
2.3.
Event processing In the block diagram 200, when a module is added or deleted, when there is a
change in the connection line between modules, when a parameter related to the level or mute of
the module is changed, or in front of the module When the output level of the other connected
module is changed, the editing operation event processing routine shown in FIGS. 6 and 7 is
activated with the corresponding module as the processing target module. In addition, when the
processing target module outputs a plurality of systems of signals, this routine is executed for
each output system (for each output terminal of the block).
[0029]
In FIG. 6, when the process proceeds to step SP2, it is determined whether the processing target
module is to input a signal. Note that a module corresponding to a block provided with an input
terminal unit is a module that performs signal input, and a module not provided with an input
terminal unit such as an oscillator module (FIG. 2A) has a signal input There is no module. Here,
if it is determined as "NO" (no signal input), the process proceeds to step SP4, and the output
level Lout of the module becomes the output level set by the module alone. In the example of the
oscillator module, this output level Lout is the level set by the knob image 115.
[0030]
On the other hand, in the case of the module which performs signal input, it is determined as
"YES" in step SP2, and the process proceeds to step SP6. Here, whether or not the output signal
of another module is actually supplied to the module, in other words, from the output terminal of
another module to the input terminal of the block related to the module on the block diagram
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200 Is determined whether or not it is in a connected state. If it is determined "NO" here, the
process proceeds to step SP8, and the output level Lout is set to "-.infin.". For example, if the
high-pass filter module related to the high-pass filter block 140 shown in FIG. 2C is a processing
target module, no coupling line is connected to the input terminal portion 142, so step SP8
Processing is performed.
[0031]
On the other hand, if "YES" is determined in step SP6, the process proceeds to step SP10, and the
input level Lin in the module is acquired. Specifically, the output level Lout of the module before
the processing target module becomes the input level Lin in the processing target module. Next,
when the process proceeds to step SP12, it is determined whether the process target module is a
module having a parameter for changing the level. If the determination is "NO", the process
proceeds to step SP14, and the acquired input level Lin is set as it is as the output level Lout of
the processing target module. The module having no parameter for changing the level
corresponds to, for example, the router module according to the router block 160 shown in FIG.
3A.
[0032]
As described above, this routine is executed for each output system when the processing target
module outputs a plurality of systems of signals. In the router block 160, this routine is called for
each of the first output signal (OUT1) and the second output signal (OUT2), and the process of
step SP14 is performed. In the example shown in FIG. 3A, since the first input signal (IN1) is
selected with respect to the first output signal (OUT1), the output level Lout of the first output
signal (OUT1) is the first. It becomes equal to the input level Lin of the input signal (IN1), and
similarly the output level Lout of the second output signal (OUT2) becomes equal to the input
level Lin of the second input signal (IN2).
[0033]
On the other hand, if the process target module has a parameter for changing the level, "YES" is
determined in step SP12, and the process proceeds to step SP16. Here, it is determined whether
the processing target module has a function of mixing a plurality of input signals. For example, if
the processing target module does not have the mixing function as in the fader module (FIG. 2B),
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it is determined as “NO”, and the process proceeds to step SP18. Here, the gain of the
processing target module is added (multiplied in the linear value) to the input level Lin, and the
result is set to the output level Lout of the module. On the other hand, if the processing target
module has the mixing function as in the mixer module (FIG. 3B), "YES" is determined in step
SP16, and the process proceeds to step SP20. Here, the output level Lout is set to a level that
takes into consideration all relevant parameters such as a plurality of input levels Lin involved in
mixing and their mixing ratios.
[0034]
As described above, when the output level Lout is determined in the process of steps SP2 to
SP20, the process proceeds to step SP22. Here, it is determined whether the parameter "chain
Mute" of the immediately preceding module is in the on state. The chain Mute is set to the off
state in the normal state. If “YES” is determined here, the process proceeds to step SP30, and
“broken line” is selected as the line type of the coupling line output from the process target
module, and the chain Mute parameter of the process target module is turned on. It is set. On the
other hand, if the preceding stage module chain Mute is in the OFF state, it is determined as "NO"
in step SP22, and the process proceeds to step SP24.
[0035]
In step SP24, it is determined whether or not there is a parameter for changing the mute state in
the process target module. If “YES” is determined here, the process proceeds to step SP26, and
it is determined whether the mute of the process target module is in the on state. If "NO" is
determined in either step SP24 or SP26, the process proceeds to step SP28, and "solid line" is
selected as the line type of the coupling line connected to the output terminal portion of the
process target module, and this process The Chain Mute parameter of the target module is set to
the off state. On the other hand, if “YES” is determined in step SP26, the process of step SP30
is performed.
[0036]
Thus, when the line type of the coupling line is selected by the processing of steps SP22 to SP30,
the processing proceeds to step SP32. Here, the coupling line connected to the output terminal
portion of the processing target module is the selected line type (solid line or broken line) and a
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thickness corresponding to the output level Lout (a thick line if it is the low level threshold or
more, If it is less than the low level threshold, it is redrawn with the dashed line). Next, when the
process proceeds to step SP34, the fact that the output level Lout has been changed is notified to
the subsequent module that supplies the output signal. Therefore, the processing of the abovementioned steps SP2 to SP34 is executed with the module of the latter stage as the processing
target module. Thereafter, the same processing is repeatedly performed as long as there is a
subsequent module, and the display state of the entire block diagram 200 is updated.
[0037]
3.
Modifications The present invention is not limited to the embodiments described above, and
various modifications can be made, for example, as follows. (1)In the above embodiment, the
“thickness” of the coupled line is set based on the output level Lout of each module, but a
display mode other than the “thickness” of the coupled line is set based on the output level
Lout. It is also good. For example, a connecting line equal to or lower than the low level threshold
may be displayed in "dark" and a connecting line below the low level threshold may be displayed
in "light". In addition, a connecting line equal to or lower than the low level threshold may be
displayed as a “bright color” and a connecting line smaller than the low level threshold may be
displayed as a “dark color”.
[0038]
(2)
In the above embodiment, the display mode such as the coupled line is set based on the output
level Lout of each module, but the display mode such as the coupled line is set based on the
parameters such as frequency, phase and time delay. May be (3)In the above embodiment,
processing such as display of the block diagram 200 is performed by a program stored in the
RAM 20 or a program stored in the computer 36, but only this program is used as a recording
medium such as a CD-ROM or a memory card. It may be stored and distributed or distributed
through a transmission line.
[0039]
It is a block diagram of mixing device 1 of one example of the present invention. It is a figure
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which shows the various blocks displayed on the display part 6, and a corresponding parameter
setting window. It is a figure which shows the other block displayed on the display part 6, and a
corresponding parameter setting window. It is a figure which shows the other block displayed on
the display part 6, and a corresponding parameter setting window. FIG. 6 is a diagram showing
an example of a block diagram 200 displayed on a display unit 6; It is a flowchart (1/2) of edit
operation event processing routine. It is a flowchart (2/2) of edit operation event processing
routine.
Explanation of sign
[0040]
1: mixing device, 2: operation unit, 4: detection circuit, 6: display unit, 8: display circuit, 10: audio
signal I / O unit, 12: signal processing circuit, 14: communication interface, 16: communication
bus , 18: ROM, 20: RAM, 22: CPU, 30-1 to 30-m: microphone, 32-1 to 32-n: amplifier, 34-1 to 32n: speaker, 36: computer, 100: oscillator 100, 120, 140, 160, 180, 300: module block, 100a:
name unit, 100b: attribute display unit, 100d: output terminal name display unit, 104: output
terminal unit, 105: coupling line, 110, 130 , 150, 170, 190, 310: Parameter setting window, 112,
113, 114: Oscillation frequency setting button, 115: Knob image, 116: Level meter 120, fader
block, 120a: name unit, 120b: attribute display unit, 120c: input terminal name display unit,
120d: output terminal name display unit, 122: input terminal unit, 123: coupling line, 124:
output terminal unit , 125: coupling line 132: on / off button 140: high pass filter block 142:
input terminal section 144: output terminal section 145: coupling line 152, 153, 154: knob
image 155: frequency display Part: 160: Router block, 162: Input terminal part, 163, 165:
Coupling line, 164: Output terminal part, 172: Matrix part, 180: Mixer block, 182: Input terminal
part, 184: MIX output terminal part , 186: normal output terminal portion, 192, 194, 196: on /
off button, 200: block diagram, 202: input No. block 202 to 240: (module image) 204: level
adjustment block 204a: name unit 204b: attribute display unit 204c: input terminal name display
unit 204d: output terminal name display unit 204e: gain display unit , 206: parametric equalizer
block, 208: delay block, 210: crossover block, 210e, 210f, 210g: gain display unit, 211H, 211M,
211L: output terminal unit, 212: delay block, 212 to 218: block , 214: PEQ block, 216: level
adjustment block, 218: limiter block, 222: delay block, 224: PEQ block, 226: level adjustment
block, 228: limiter block, 232: delay block, 234: PEQ block, 236: level Adjustment block, 238:
limiter block, 240: output signal block, 250 to 280: coupling line, 300: crossover block, 301H,
301M, 301L: output terminal portion, 302: input terminal portion, 312: characteristic display
portion, 314: knob image, 316: gain display section, 318, 328, 338: knob image, 320, 330, 340:
gain display section, 322, 332, 342: mute button, 324, 334: knob image, 326, 336: Frequency
display.
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