JP3467367B2 - Fader device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to, for example, mixing.
Applies to devices with multiple faders, such as devices
For fader devices, especially for one specific channel
When you operate a fader, the other faders will automatically
Master-slave type fader device operated dynamically
About. 2. Description of the Related Art A fader device as described above is used for
As an example applied to a digital mixing device,
An example is shown in FIG. Digit shown in the figure
The mixing device includes, for example, a plurality of channels Ch1,
The signals input from Ch2, Ch3,.
DSP1 that amplifies and outputs these as output signals
are doing. Each channel Ch1, C of this DSP1
Gain (signal amplification factor) at h2, Ch3, ...
Are the channels Ch1, Ch2, Ch3,.
..Each fader 10, 20, 3 provided corresponding to
0,... Controlled by the control circuit 2
You. Each of the faders 10, 20, 30,...
Each has the same configuration, for example each slide resistor
(Linear variable resistor) 11, 21, 31, ...
I have. These slide resistors 11, 21, 31, ...
Are the linear resistors 12, 22, 32, respectively.
, And sliders 13, 23, 33,...
You. The linear resistors 12, 22, 32,...
It has a troke, both ends of which are, for example,
Connected between the fixed circuit power supply V and ground (earth)
You. The sliders 13, 23, 33,...
Slide on the surfaces of the type resistors 12, 22, 32,.
Outputs a voltage corresponding to the contact position of each slider.
Operate them (sliding, 3, 23, 33,...)
Controls (knobs) 14, 24, 34,.
・ ・ Is provided. The above sliders 13, 23, 33,.
The voltages output from the operation unit position detection unit 15,
, 25, 35,. These control positions
, The detection units 15, 25, 35,.
From the above voltages, lines of the respective sliders 13, 23, 33,...
Contact position with respect to the type resistors 12, 22, 32, ...
(Operating positions of the operating elements 14, 24, 34,...)
And a corresponding position signal is supplied to the control circuit 2.
You. The control circuit 2 corresponds to each of the position signals.
The gain is set for each channel Ch1, Ch of the DSP1.
2, Ch3,... Are set as gains. This
As a result, the DSP 1 can operate the sliders 13, 23, 3
3, ... (each operation unit 14, 24, 34, ...)
The respective channels Ch1, Ch
Amplify signals input from 2, Ch3, ... respectively
Will do. Each slider 13, 23, 33,.
.. the position of each of the controls 14, 24, 34, ...
Gain of each channel Ch1, Ch2, Ch3, ...
Has a relationship as shown in FIG. 7, for example. That is, as shown in FIG.
Panels 3 are provided at 0, 20, 30,...
Have been. These panels 3 have, for example,
B-∞, -50, -40, -30, -20, -10,-
Each scale of 5, 0, +5 and +10 dB corresponds to the slider 1
The sliding direction of 3, 23, 33,...
Approximately equal intervals along the movement direction of 4, 24, 34, ...
Has been shaken. In addition, the scale of-、 indicates the operation unit 14,
24, 34,... (Movable range (linear resistor 12,
, 32,...), For example, the lower end
Has been shaken in position. And other than the above movable range
A scale of +10 dB is set at the end, for example, at the upper end position.
You. The above faders 10, 20, 30,...
, Each of the operators 14, 24, 34,.
-∞ scale, which is the lower end position (lower limit) of the movable range
And the gain of the DSP 1 is, for example, -210.
It is set to dB. Then, the operators 14, 24, 34,
Is moved slightly upward from the position of -∞ above.
When it is moved, the above gain changes at a stroke to, for example, -60 dB.
Become That is, the gain is from −210 dB to −60 dB.
In the period up to, the controls 14, 24, 34, ...
The above-mentioned gain suddenly changes with the position change of
In this suddenly changing area, the operators 14, 2
Control of gain by operation (position adjustment) of 4, 34, ...
Control (adjustment) is not possible. On the other hand, the position slightly above the above- 上方
+1 which is the upper end position (upper limit) of the movable range from the position
Up to the 0 dB scale position, the gain of DSP1
Is from -60 dB to +10 d depending on the value indicated on each scale.
Continuously up to B (details are digital processing,
Predetermined resolution, for example, discretely in 0.1 dB steps)
Change. That is, a gain of -60 dB to +10 dB
Up to the operation of the operators 14, 24, 34,.
The above gain is controlled (adjusted) according to the operation (position adjustment)
It is an adjustable region in which it can be adjusted. In addition, general
In addition, in such a digital mixing device,
DSP1 gain between -10dB and + 10dB
It is often used in the state set to, so during this time
For, the gain for the scale interval than other parts
Is small, that is, the gain can be finely adjusted.
It is configured as follows. By the way, each fader 10, 20, 30,
... have motors 16, 26, 36, ... respectively.
Is provided. These motors 16, 26, 36,
.. Indicate that each of the operators 14, 24, 34,.
Not move these places carelessly when not
, That is, each channel Ch1, Ch2, Ch3,.
So that the gain of each of the operators 14, 2
, 34,... Are held.
The control is performed by the control circuit 2. That is, each of the operators 14, 24, 34,...
For example, when a finger touches each of them,
Touch detectors 17, 27, 37,.
.. is provided, and this touch signal is transmitted to the control circuit 2
Supplied to The control circuit 2 outputs the touch signal.
Each of the operators 14, 24, 34,.
Detects whether or not is operated. In other words, control
When the touch signal is not output, the circuit 2
Each of the operators 14, 24, 34, ... is not operated
And each of the operation element position detection units 15, 25, 35,
... so that the position signal from each motor 1 is constant
, 26, 36,... Are servo-controlled.
The above holding control is realized. On the other hand, when the touch signal is output,
The control circuit 2 is a channel that outputs this touch signal.
Is determined to be operated, and that channel is
Release the control to hold the control of the console. This will keep
The operator of the channel whose control has been released is
State. After this operation is completed, the touch signal
Since the output is stopped, the control circuit 2 operates after the above operation.
Resumption control resumed to maintain the position of the slider (slider)
I do. Further, this digital mixing device is
The above faders 10, 20, 30,...
Corresponding to a predetermined channel, for example, channel Ch1
Fader 10 is the master (main) fader, and other
Of the slaves (slave)
The master-slave method is adopted. That is,
Operate the operator 14 of the master fader 10 to set the channel
When the gain of Ch1 is changed, an equivalent gain
The change affects other channels Ch2, Ch3, ...
, Each slave fader 20, 30,.
Are automatically moved (the cells
Slave control. Each of the operators 24, 34,
Are driven by motors 26, 36,.
, And the operation of each motor 26, 36,.
Controlled by road 2. Now, the digital mixing device as described above
For example, a four-channel configuration as shown in FIG.
Suppose there is a thing. This device, as shown in the figure,
Corresponds to channels Ch1, Ch2, Ch3, Ch4
Faders 10, 20, 30, 40 are arranged in a horizontal line.
And the fader corresponding to channel Ch1
10 is a master fader. And each cha
The gain of channels Ch1, Ch2, Ch3, and Ch4 is
-20dB, -20dB, -20dB, -5dB respectively
Is set to In this state, as shown in FIG.
Operate the operation member 14 of the stafader 10 to set the channel C
For example, the gain of h1 is changed by +10 dB,
When the gain value is set to -10 dB,
Channel Ch2, Ch3 and Ch4 also
Each slave buffer is adjusted so that the gain changes by +10 dB.
The controls 24, 34, 44 of the faders 20, 30, 40 are
-10dB, -10dB, + 5dB scale
Move to the place. Then, this time, is the state shown in FIG.
For example, the operator 14 of the master fader 10 is set to the position of -∞.
And the gain of channel Ch1 is -210.
Set to dB. This allows each channel to be
-200 dB for channels Ch2, Ch3 and Ch4
(= −210 dB − (− 10 dB))
, Ie, each channel Ch2, Ch3, Ch
4 have gains of −210 dB, −210 dB, −
Each of the operators 24, 34, and 44 is set to 195 dB.
Moving. Here, as described above, -∞ (−210 dB)
For the range from to -60 dB, each of the operators 14, 2
The gain suddenly changes at a stretch in response to the position change of 4, 34, 44
Of each of the operators 24, 3
4 and 44 move at a stretch to the -∞ scale position.
Therefore, in this state, all the operators 14, 2
4, 34 and 44 will be located on the scale of -∞.
You. [0016] However, as described above,
In addition, each of the operators 14, 24, 34, and 44 has a scale of -∞.
While in the position, the slave faders 20, 3
0 or 40, for example, slave fader 3
For example, if the operator touches the operator 34
(It mis-touches).
As shown in an exaggerated manner, the operator 34 is slightly
Suppose you moved to The movement of the operation element 34
The gain of the channel Ch3 is, for example, -59d at once.
Assume that it has risen to B. In this state, the master
The operator 14 of the fader 10 is operated to operate the channel Ch1.
When the gain is increased to, for example, -50 dB,
+1 for each channel Ch2, Ch3, Ch4.
Gay for 60dB (= -50dB-(-210dB))
Buttons 24, 34, and 44 are moved so that
Move. As a result, as shown in FIG.
The gains of h2 and Ch4 are -50 dB and -35, respectively.
dB, but +101 for channel Ch3.
dB (actually, the upper limit is +10 dB).
34 also reaches the upper limit position. Therefore, each channel
Gain gain between Ch1, Ch2, Ch3 and Ch4
There is a problem that the lance is significantly collapsed. The above problem occurs in a theater or the like where a large audience gathers.
Fatal for this digital mixing device used
This is an operational problem, and the operating
Always note the position of each control 24, 34, 44
I was operating with care. However, each operator 24,
Even if attention is paid to the positions of 34 and 44,
Unexpected position change due to mistouch of each operation element
(Movement amount) is so small that we overlook this
It can happen. In addition, the above problem is caused by each of the operators 2
4, 34 and 44 are the lower limit positions (-∞ scale positions).
When the robot moves at a stretch to
It is also caused by bouncing upward from the limit position
May be born. Therefore, the present invention relates to each of the above-described operators.
Caused by unexpected position change (movement) of 24, 34, 44
Between each generated channel Ch1, Ch2, Ch3, Ch4
To prevent imbalance in gain
To provide a fader device that can perform
It is. Means for Solving the Problems The invention according to claim 1
Is a signal that processes signals input from multiple channels.
The state of the above processing of the signal processing means is controlled for each of the above channels.
A fader device that controls each of the above channels.
Controls that can be operated in the same variable range,
The signal processing means operates in accordance with the operation of each of the operating elements.
It processes each signal input from each channel.
Control means for controlling the processing state of each channel as described above.
And the control means includes:
Operate the operator of the specified channel to
Changes the above processing state of the
Change equivalent to each channel other than the above-mentioned specified channel
To give each processing state of the
Control signals to change the controls of each channel except for
Generated, and in response to the control signal,
Variable means for changing the controls of each channel outside
In a master / slave fader system with
The control means is an operator of the predetermined channel, for example,
The master fader control is at one end of the variable range,
And a control for a channel other than the predetermined channel,
For example, one of the slave fader controls
In a predetermined area within the variable range.
Operate the master fader controls to correspond to the above
When the processing state of a given channel is changed,
For some of the slave fader controls,
Once changed to one end of the variable range, the predetermined
A change equivalent to a change in the processing state in the channel
To give the processing status of one of the channels
The above control to change the operator of one of the slave faders
Characterized in that it is configured to generate a signal
It is. Here, the predetermined area is any of the above-mentioned areas.
The control of one of the slave faders is originally
It must be at one end of the box, but for some reason
Suddenly changed (other than one end of the above variable range)
It is the area considered to be. That is, the operator of the master fader and the
Check that one of the slave fader controls is
One of the above slaves when it must be at the end
The fader controls suddenly change for some reason
Suppose you have. In this state, the master fader
Operate the control to operate any of the above slave faders.
Once changes to one end of the variable range,
Depending on the operation of the master fader operator, a predetermined key
A change equivalent to a change in the processing state in the channel
Automatically to give the processing status of one of the channels
(Master / slave control). That is,
For the controls of any of the slave faders, first
Master / slave control after the unexpected change is corrected
Will be done. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a fader device according to the present invention will be described.
For example, when applied to a digital mixing device,
One example of the embodiment will be described with reference to FIGS.
You. Note that the digital mixing device according to the present embodiment is
The circuit configuration is the same as that of the prior art shown in FIG.
They are equivalent, and only the control procedure by the control circuit 2 is different.
Therefore, the circuit configuration is shown in FIG.
Operation positions of 4, 24, 34, ... and gain of DSP1
Refer to FIG. 7 for the relationship with
Detailed description is omitted. That is, the control circuit 2 includes, for example, a CPU (central
Arithmetic processing unit) and the like.
Operate according to the stored program. The storage unit
3 includes, for example, a flow chart as shown in FIGS.
A program for operating the control circuit 2 according to the
The storage unit 3 stores, for example, a ROM or RA
M and the like. Now, this digital mixing device is
It is assumed that it is operating in a state where Here, each slave
, The operators 24, 34,...
Is operated, the control circuit 2 sets the flow chart shown in FIG.
Works according to the First, each of the operators 24, 34,...
Is, for example, whether or not each finger is touched,
In response to touch signals from the touch detection units 27, 37,...
Is detected (step S202). In step S202, the touch
When the slave signal is output, the slave
., 24, 34,...
Is determined to be operated, and the operators 24, 34,.
..Of motors 26, 36,...
Release the above holding control (servo operation) (Step S2)
04). As a result, the slave from which the holding control is released is
In each of the faders 20, 30,...
, 34,... Can be performed. The positions of the operators 24, 34,...
Are detected by the operation element position detection units 25, 35,.
Out (step S206), and according to the detected position,
The channels Ch2, Ch3,...
The DSP 1 is controlled to change the input (step S2
08). Then, this step S206 and step S206
The operation of step 208 is repeated until the touch signal is no longer output.
, That is, until the finger is released from each of the operators 24, 34,.
(Step S210). In step S210, each operation element
When it is detected that the finger has left from 24, 34, ...,
The positions of the controls 24, 34,.
Control each motor 26, 36,.
(Step S212), returning to step S202 again
You. Note that in step S202, each
If the fingers are not touched on the operators 24, 34,...
, The operation position of each operation element 24, 34, ...
Is detected (step S214), and there is a change in the detected position.
It is monitored whether it has occurred (step S216). this
.. Indicate that each of the operators 24, 34,.
It may be operated by a hand with a bag or a pen point
In this case as well, the operators 24, 34,.
It is to be able to make. In addition, each operation element 24,
When a large external force is applied to
For each of the motors 26, 36,.
This is also to prevent mechanical overload. That is, in step S216, each
There is no change in the position of the operators 24, 34, ...
.. Are not operated.
And the process returns to step S202. Only
, And the positions of the operators 24, 34,...
, Some outside of each of the operators 24, 34,.
Force is considered to have been applied,
Is it or it was accidentally hung
Judge. For example, the positions of the operators 24, 34,.
A predetermined time after the change, for example, about 0.2 seconds
Until time elapses, each of the controls 24, 34,
... returned to the original position (the position before the change)
Is confirmed (step S218). Here, operator 2
When 4, 34,... Have returned to their original positions,
The change of the position is accidental (for example,
Something hits on 24, 34, ...
Are moved instantaneously).
Step S2 is performed so as to maintain the above original positions.
Proceed to 12. On the other hand, even if the predetermined time elapses,
If the positions of 24, 34, ... do not return to their original positions,
Since they are considered to have been manipulated intentionally,
Depending on their changed position, the corresponding channel
Change the gains of the channels Ch2, Ch3,.
Step S220). And keep this changed position
As described above, the process proceeds to step S212. As described above, each slave fader 20,
30,..., The respective controls 24, 3
By operating (moving) 4,...
Of channels Ch2, Ch3,...
In can be controlled. On the other hand, the operator 14 of the master fader 10 is
When operated, the control circuit 2 operates as shown in FIGS.
-Operates according to the chart. That is, as shown in FIG.
The operator 14 of the fader 10 is touched by a finger, for example.
Whether or not the touch signal from the touch detection unit 17
It is detected (step S102). Here, when the touch signal is output,
The operator 14 of the master fader 10 is operated.
And the mode holding the position of the operation element 14 is determined.
Release the hold control (servo operation) of the data 16 (step
S104). This allows the operation of the master fader 10
The child 14 can be operated. Then, the position of the operation element 14 is
Detected by the position detector 15 (step S106),
The operator 14 is moved to the lower limit position of the master fader 10 immediately.
Check whether it is positioned on the scale of
Step S108). In step S108, if
If the operator 14 is determined to be at the -∞ scale position,
First, each of the slave faders 20, 30, ...
The positions of the operators 24, 34,.
(Step S1)
10). Then, each of the operators 24, 34,.
For example, whether it is located in a predetermined prohibited area as shown in FIG.
Is checked (step S112). Please note that this ban
For the area, for example, slightly above the scale of -∞
Position (position where the gain of DSP1 becomes -60 dB)
To a -50 dB scale position. In the above step S112, if
Any of the operators 24, 34,.
If it is determined that it is within the prohibited area,
One of the operators 24, 34,...
Move to the position (lower limit position)
Set the gain of the channel to the lower limit, ie, -210 dB
(Step S104). The operator 14 of the master fader 10
Corresponding to the master fader 10 according to the operation position of the
The gain of the channel Ch1 is changed (step S1).
16). At the same time, the same channel Ch1
The change amount of the gain is set to other channels Ch2, Ch3,.
・ As described above, each slave fader 20, 30,
The position of each operator 24, 34,.
(Step S1)
18). In the above step S108,
The operator 14 of the master fader 10 is positioned at the -∞ mark.
If it is determined that it has not been performed, and to step S112
The operation of each of the slave faders 20, 30,.
If all the plants 24, 34, ... are outside the above prohibited area
If it is determined, go to step S116 above.
move on. Then, the process proceeds from step S106.
For the operation up to step S118, the master fader 10
Until the touch signal is no longer output from the
Repeat until the finger is released from the operator 14 of the fader 10
(Step S120). In the above step S120, the master
It is detected that the finger has left the operator 14 of the fader 10.
The operator 14 of the master fader 10 at the time of the detection
And each of the slave faders 20, 30,...
24, 34,...
16, 26, 36,... (Step S12).
2) Return to step S102 again. In the above step S102,
Also when the finger is not touched on the operation element 14,
The operation of each of the slave faders 20, 30,... Shown in FIG.
As in the case of the operation, the operation position of the operation element 14 is always detected (step
S124), whether the detected position has changed
Is monitored (step S126). That is, in step S126, the operation
If there is no change in the position of the crop 14, this operation
It is determined that the child 14 has not been operated, and
It returns to step S102. However, the position of the operator 14
When a change occurs in the operation
It is considered that external force was applied.
Is it a pictorial thing or something that was accidentally hung
Is determined. For example, after the position of the operation element 14 has changed.
A predetermined time, for example, an instantaneous time of about 0.2 seconds elapses
The operator 14 is in its original position (before the change
(Step S12).
8). Here, when the operation element 14 has returned to the original position.
In some cases, the change in position is accidental (for example,
Something collides with the operator 14 of the
14 moved instantaneously)
Then, go to step S122 so as to maintain the original position.
And proceed. On the other hand, even if the predetermined time has elapsed,
If the position of 14 does not return, it is consciously operated.
It is considered to have been made. In this case, first
The child 14 is at the lower limit position of the master fader 10, that is,
Check whether or not it is positioned on the scale (step S1)
30). Then, in the above step S130,
If it is determined that the operator 14 is at the -∞ scale position,
, Each operation of each slave fader 20, 30, ...
, Etc. (Step S)
132) and these are located in the above-described prohibited area.
It is confirmed whether or not (step S134). In step S134, if
Any of the operators 24, 34,.
If it is determined that it is within the prohibited area,
One of the operators 24, 34,...
Move to the position (lower limit position)
Set the gain of the channel to the lower limit, ie, -210 dB
(Step S136). The operation after the master fader 10 changes.
The master fader 10 is operated in accordance with the operation position of the crop 14.
Change the gain of channel Ch1 corresponding to
Step S138). At the same time, this channel Ch1
The amount of change in gain equivalent to that of the other channels Ch2, Ch
3, each slave fader 2
Positions of the operators 24, 34, ... of 0, 30, ...
Are moved by the motors 26, 36,.
Step S140). Then, each of the operators 14 and 2 after the change
, 34,...
The process proceeds to step S122. In the above step S130,
The operator 14 of the master fader 10 is positioned at the -∞ mark.
If it is determined that it has not been performed, and to step S134
The operation of each of the slave faders 20, 30,.
If all the plants 24, 34, ... are outside the above prohibited area
If it is determined, the process proceeds to step S138.
move on. As described above, this digital mixing
In the device, the operator 14 of the master fader 10
目 At the scale position (lower limit position),
, One of the operators 24,
Are in the above-mentioned prohibited area,
When the operator 14 of the stafader 10 is operated, the above-described prohibition is performed.
For the controls within the area, once
After moving to the raised position (lower limit position),
(Master / slave control)
). For example, the digital mixer as described above
As the singing device, the same 4 device as that of the above-mentioned prior art is used.
Considering the channel configuration, each channel Ch1, C
The gains of h2, Ch3, and Ch4 are shown in FIG.
-20dB, -20dB, -20d respectively
B, -5 dB. In this state, as shown in FIG.
Operate the operation member 14 of the stafader 10 to set the channel C
The gain of h1 was immediately moved to the -∞ position,
When the gain of the channel Ch1 is set to −210 dB,
-20 for each channel Ch2, Ch3, Ch4
Gain of 0 dB (= −210 dB − (− 10 dB))
Are moved so that the operator is given.
I do. At this time, the operators 24, 34, 44
All move to the -∞ scale position, but each channel
The gains of Ch2, Ch3, and Ch4 are-
210 dB, -210 dB, and -195 dB are set.
These values are stored in the storage unit 3. Here, as described above, each of the operators 14, 2
4, 34 and 44 are in the -∞ scale position
Any of the slave faders 20, 30, 40
Or, for example, for the operator 34 of the slave fader 30
For example, suddenly your hand touched
This allows the operation as shown by the dotted line in FIG.
It is assumed that the child 34 has moved slightly upward. And this
The gain of the channel Ch3 is obtained by the
At a stretch to, for example, -59 dB. In this state, the operator of the master fader 10
14 to adjust the gain of the channel Ch1 to -5, for example.
0dB, each channel Ch accordingly
+160 dB (= −50) for 2, Ch3 and Ch4
A gain of dB-(− 210 dB)) is given. I
However, the slave channel corresponding to the channel Ch3
The operator 34 of the server 30 is in the above-described prohibited area.
(Scale of -50dB from slightly above -∞
As shown by arrows in FIG.
Then, once moved to the lower limit position (-∞ scale position)
After that, it moves according to the operation of the operation element 14 (master / master).
Slave controlled). That is, for channel Ch3,
After setting from -59dB to -210dB,
The gain of +160 dB is given.
This allows each fader 10, 20, 30, 40 to be
Of each corresponding channel Ch1, Ch2, Ch3, Ch4
As shown in FIG. 7, the gains are -50 dB and-
50 dB, -50 dB, and -35 dB.
The imbalance of gain as in the prior art shown in FIG.
I do not. As described above, according to the present embodiment, forbidden
The operator 34 located in the stop area is not
Position is considered to have changed
When controlling, first, the unexpected position change of the operator 34 is compensated.
It is configured to correct. Therefore, the master slave
When controlling the
Channels Ch1, Ch2, Ch3,...
Breakage of the gain balance can be prevented beforehand. In the present embodiment, each phase
, 10, 20, 30,...
The gain of DSP1 is adjusted by the operation of 4,.
Has been described, but the invention is not limited to this. For example,
Frequency characteristics, phase characteristics, and the like may be changed. Also,
Fader device applied to digital mixing device
What was described above, but other devices, such as
The present technology can also be applied to risers, jurisdiction broadcasting facilities, and the like. Each channel Ch1, Ch2, Ch
The gain adjustment of 3,.
Adjusted using 1, 21, 31, ...
Instead, for example, a rotary resistor (rotary variable resistor)
May be used. In this case, the channel Ch1 is
The corresponding fader 10 is designated as the master fader.
The external faders 20, 30, ... are master faders
You may. The prohibited area in the present embodiment is
, The operators 24, 34,.
Slave faders 20, 30,... -∞ scale
Position (lower limit position)
Areas thought to have unexpectedly moved there by
It is. Here, in the present embodiment, this prohibited area
Is the upper limit of -50 dB, and the lower limit is -∞.
The reason why it was set slightly higher is as follows. That is, the upper limit is set to a scale position of -50 dB.
The reason is that the operators 24, 34,.
Mis-touch, or move these to the lower
If you move upward due to bouncing when you let it
The movement position is a scale position of -50 dB at most.
This is because it is considered to be less than or equal to the position. If each control
24, 34, ... are above the -50 dB scale.
If they are located in
It is natural to think that it was made. Therefore, above
For the limit position, the position below the scale of -50 dB
(A gain value of -50 dB or less)
In this case, the scale position was -50 dB. On the other hand, regarding the lower limit position, -140
The position corresponding to -60 dB from the position corresponding to the gain value of dB
Between the two positions. That is, each fader 10, 20,
30,..., Each operation element 14, 24,
The range in which the gain can be adjusted by operating
The adjustable range in FIG. 7 is from −60 dB to +10
It is 70 dB up to dB. Therefore, this digit
Each channel when actually using the tal mixing device
Gay between channels Ch1, Ch2, Ch3, ...
Generally, the disparity is considered to be within the above 70 dB.
It is. Therefore, each fader 10, 20, 30
With respect to the lower limit (−210 dB) of the
From the value obtained by adding 0 dB, that is, -140 dB, the gain
Subtract the above 70 dB from the upper limit of the variable range (+10 dB).
Corresponding to a gain value of up to -60 dB.
The position was defined as the lower limit position. In this embodiment,
In addition, the position corresponding to -60 dB (than the scale of -∞)
Position slightly above), but of course satisfies the above conditions
However, it is not limited to this. Note that each of the operators 24, 3
It is determined whether each of the operation buttons
The position signals from the position detectors 15, 25, 35,.
May be detected, or the corresponding channel
From the gain value (value stored in the storage unit 3)
It may be derived. Also, the DSP 1 in the present embodiment is
This D processing means corresponds to the signal processing means described in the claims.
The gain (signal amplification factor) in SP1 is defined in the claims.
It corresponds to the processing state described in the box. Also stored in the storage unit 3
Control circuit 2 that operates in accordance with the programmed program
According to the control means described in the claims, each motor 16,
26, 36,... Correspond to the variable means. The present invention according to claim 1 of the present invention has the following features.
The fader device has a master fader and a slave fader.
The controls must be at one end of each variable range.
Nevertheless, unexpected changes occur to the slave fader controls
This causes the slave fader controls to be
When the master area changes to the
Operate the slider controls to operate the slave faders.
For the child, after the unexpected change is corrected,
Automatic operation (macro) according to the operation of the control of the staffer
(Master / slave control). Immediately
In other words, each slave fader makes unexpected changes as described above.
Master-slave control with the state left
Absent. Therefore, it has been a problem in the above-mentioned prior art.
Each fader (channel) caused by the unexpected change
To prevent imbalance in the processing state between
There is an effect that can be.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment in which a fader device according to the present invention is applied to a digital mixing device, and is a diagram showing an example of an operation state of each fader. FIG. 2 is a flowchart illustrating the operation of the master fader according to the embodiment; FIG. 3 is a flowchart following FIG. 2; FIG. 4 is a flowchart illustrating the operation of the slave fader according to the embodiment; 5 is a diagram illustrating an example of a result of performing master-slave control in the state illustrated in FIG. 1; FIG. 6 is a block diagram showing a schematic configuration of an electric circuit of the digital mixing device. FIG. 7 is a diagram showing the relationship between the position of an operator and the gain of each fader in the digital mixing device. 8 is a diagram showing an example of an operation state of each fader in the digital mixing device shown in FIG. 9 is a diagram illustrating an example of a result of performing master-slave control in the state illustrated in FIG. 8; FIG. 10 is a diagram showing a state in which an operator of a certain fader (of channel Ch3) has an unexpected position change in the conventional fader device. 11 is a diagram illustrating an example of a result of performing master-slave control in the state illustrated in FIG. 10; [Description of Signs] 1 DSP 2 Control circuit 3 Storage unit 10, 20, 30 Fader 11, 21, 31 Slide resistor 14, 24, 34 Operator 16, 26, 36 Motor

Continuation of front page (58) Fields investigated (Int.Cl. ⁷ , DB name) H03G 3/02 G11B 20/04 101 H03F 3/181 H04N 5/265

Claims (1)

(57) Claims 1. A fader device for controlling the state of the processing of the signal processing means for processing signals input from a plurality of channels for each of the channels, A control element provided for each of the channels, and an operation element that can be operated in the same variable range, and the signal processing means processes the signals input from the channels in response to the operation of the operation elements. Control means for controlling a processing state, wherein the control means operates an operator of a predetermined channel among the respective channels to change the processing state of the predetermined channel. Change each operation element of each channel other than the predetermined channel so that a change equivalent to the change is given to each processing state of each channel other than the predetermined channel. A fader device provided with a variable means for generating a control signal to be changed and changing each operation element of each channel other than the predetermined channel in accordance with the control signal, wherein the control means is configured such that the operation element of the predetermined channel is An operator at one end of the variable range and one of the channels other than the predetermined channel is in a predetermined area in the variable range. In this state, the operator of the predetermined channel is operated to operate the predetermined channel. When the processing state of the channel is changed, for any one of the channels, the operator is once changed to one end of the variable range, and then a change equivalent to the change in the processing state of the predetermined channel is made. The control signal is generated to change the operation of any one of the channels so as to give the processing state of any one of the channels. Fader apparatus characterized by configured.