JPH09246891A - Fader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent unbalance of channels caused by the sudden movement of an operator. SOLUTION: At the time of operating the operator 14 of a maser fader 10, each operators 24, 34 and 44 of each slave fader 20, 30 and 40 is automatically operated (master-slave control). When the operator 14 of the master fader 10 is at its lower limit position (-∞) and the operator 34 of one of the slave faders 20, 30 and 40, the fader 30, e.g. is in a prescribed inhibited area and at the time of operating the operator 14 of the master fader 10, the operator 34 of the slave fader 30 is temporarily moved to -∞ and after then controlled by the operation of the operator 14 of the master fader 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fader device applied to a device having a plurality of faders such as a mixing device, and in particular, when a fader of a specific one channel is operated, another fader device is associated with the fader device. The present invention relates to a master / slave type fader device in which faders are also automatically operated.

[0002]

2. Description of the Related Art As an application of the above-described fader device to, for example, a digital mixing device, there is a conventional device as shown in FIG. The digital mixing apparatus shown in the figure has a plurality of channels Ch1,
It has DSP1 which amplifies the signals respectively input from Ch2, Ch3, ... And outputs them as output signals. The above channels Ch1 and C of this DSP1
Gain (signal amplification rate) at h2, Ch3, ...
Are each of these channels Ch1, Ch2, Ch3 ,.
..Faders 10, 20, 3 provided corresponding to
It is controlled by the control circuit 2 according to the operation of 0, ....

Each fader 10, 20, 30, ...
Each has the same configuration, and each has, for example, slide resistors (linear variable resistors) 11, 21, 31 ,. These slide resistors 11, 21, 31, ...
. Are linear resistors 12, 22, 32, ...
And the sliders 13, 23, 33 ,. The linear resistors 12, 22, 32, ... Have predetermined strokes, and both ends thereof are connected between, for example, a predetermined circuit power supply V and a ground (earth). Further, the sliders 13, 23, 33, ... Slide on the surfaces of the linear resistors 12, 22, 32, ... And output a voltage according to their contact positions. Slider 1
3, 23, 33, ... Have operators (knobs) 14, 24, 34, ... for operating (sliding) them.
・ ・ Is provided.

The voltage output from each of the sliders 13, 23, 33, ...
25, 35, ... The manipulator position detectors 15, 25, 35, ... Detect the linear resistors 12, 22, 32, ... Of the sliders 13, 23, 33 ,. The contact position (operating position of each operator 14, 24, 34, ...) With respect to ... Is detected, and a position signal corresponding to this is supplied to the control circuit 2.

The control circuit 2 obtains the gains corresponding to the respective position signals by the respective channels Ch1 and Ch of the DSP1.
2, gains are set as Ch3, .... As a result, the DSP 1 causes the sliders 13, 23, 3 to
3, ... (each of the operators 14, 24, 34, ...) With a gain corresponding to the position of each of the channels Ch1, Ch
2, the signals input from Ch3, ... Are amplified respectively. The sliders 13, 23, 33, ...
.... (Position of each operator 14, 24, 34, ...) And
The gains of the channels Ch1, Ch2, Ch3, ... Have a relationship as shown in FIG. 7, for example.

That is, as shown in FIG.
Panels 3 are provided at 0, 20, 30 ,. These panels 3 have, for example, −∞, −50, −40, −30, −20, −10, − on the surface thereof.
Each scale of 5, 0, +5, and +10 dB corresponds to the slider 1.
The sliding direction of 3, 23, 33, ...
It is shaken at substantially equal intervals along the moving direction of 4, 24, 34, .... In addition, the scale of -∞ is the operator 14,
24, 34, ... Movable range (linear resistor 12,
(Strokes of 22, 32, ...) One end, for example, the lower end position. A scale of +10 dB is set on the other end of the movable range, for example, the upper end position.

Each of the faders 10, 20, 30, ...
, The respective operators 14, 24, 34, ...
When positioned at the lower end position (lower limit) of the movable range, which is −∞, the gain of the DSP 1 is, for example, −210.
Set to dB. Then, the operators 14, 24, 34,
When .. is moved even slightly upward from the position of -.infin., The gain is suddenly changed to, for example, -60 dB. In other words, gain of -210 dB to -60 dB
Up to the above, the operators 14, 24, 34, ...
Is a sudden change region in which the gain changes abruptly, and in this sudden change region, the operators 14, 2
It is impossible to control (adjust) the gain by operating (position adjustment) 4, 34, ....

On the other hand, the upper end position (upper limit) of the movable range is +1 from a position just above -∞.
Up to the 0 dB scale position, the gain of DSP1 is from -60 dB to +10 d depending on the value shown on each scale.
Continuously up to B (in detail, since it is digital processing,
(Predetermined resolution, for example discretely in 0.1 dB steps)
Change. In other words, gain of -60 dB to +10 dB
Up to are the adjustable regions in which the gain can be controlled (adjusted) in accordance with the operation (position adjustment) of the operators 14, 24, 34, .... Generally, in such a digital mixing device,
Since the gain of the DSP 1 is often used in a state of being set to a value between −10 dB and +10 dB, during this period, the variable amount of the gain with respect to the graduation interval is smaller than that of other portions, that is, the gain fine adjustment. Is configured to be possible.

By the way, each fader 10, 20, 30,
, ... are motors 16, 26, 36, ...
Is provided. These motors 16, 26, 36,
... so that these positions do not move carelessly when the operators 14, 24, 34, ... are not operated, that is, the channels Ch1, Ch2, Ch3 ,.
In order not to change the gain of the
The positions 4, 4, ... Are held, and the holding control is performed by the control circuit 2.

That is, each operator 14, 24, 34, ...
, Touch detection units 17, 27, 37, ..., which detect the touch of each with a finger and output a touch signal.
.. are provided, and this touch signal is sent to the control circuit 2
Is supplied to. The control circuit 2 determines whether or not each of the operating elements 14, 24, 34, ...
Detects whether or not is operated. That is, the control circuit 2, when the touch signal is not output,
It is judged that the respective operators 14, 24, 34, ... Are not operated, and the respective operator position detection units 15, 25, 35,
Each motor 1 so that the position signal from
Servo control is performed on 6, 26, 36, ..., By which, the holding control is realized.

On the other hand, when the touch signal is output, the control circuit 2 determines that the operator of the channel outputting the touch signal is being operated, and controls the holding of the operator of the channel. To release. As a result, the manipulator of the channel for which the holding control has been released becomes operable. Since the touch signal is not output after this operation is finished, the control circuit 2 restarts the holding control so as to hold the position of the operator (slider) after the operation.

Further, in this digital mixing apparatus, the fader 10 corresponding to a predetermined channel of the faders 10, 20, 30, ..., For example, the channel Ch1 is used as a master (main) fader and the other faders are used. A master / slave system in which 20, 30, ... Are used as slave (subordinate) faders is adopted. That is,
When the operator 14 of the master fader 10 is operated to change the gain of the channel Ch1, each slave fader 20, so that a change in gain equivalent to this is also given to the other channels Ch2, Ch3 ,. 30, ...
, Are automatically moved (master / slave control is performed. Each of the operators 24, 34, ...
The movements of ... Are driven by the motors 26, 36, .. The operations of the motors 26, 36 ,.

As an example of the digital mixing apparatus as described above, there is a 4-channel configuration as shown in FIG. As shown in the figure, this device has faders 10, 20, 30, and 40 corresponding to the channels Ch1, Ch2, Ch3, and Ch4 arranged in a horizontal row, and the fader 10 corresponding to the channel Ch1 among them is arranged. However, it is regarded as a master fader. The gains of the channels Ch1, Ch2, Ch3, and Ch4 are -20 dB, -20 dB, -20 dB, and -5 dB, respectively.
Is set to

In this state, as shown in FIG. 9, the operator 14 of the master fader 10 is operated to operate the channel C.
For example, if the gain of h1 is changed by +10 dB and the gain value is set to -10 dB, the gain of each of the other channels Ch2, Ch3, and Ch4 also changes by +10 dB, so that each slave fader changes. The operators 24, 34, 44 of 20, 30, 40 are
Move to the scale position of -10 dB, -10 dB, and +5 dB, respectively.

Then, from the state shown in FIG. 9, for example, the operator 14 of the master fader 10 is moved to the position of -∞, and the gain of the channel Ch1 is changed to -210.
Set to dB. As a result, similarly to the above, -200 dB is applied to each of the channels Ch2, Ch3 and Ch4.
A gain corresponding to (= −210 dB − (− 10 dB)) is given, that is, each channel Ch2, Ch3, Ch.
4 gains are -210 dB, -210 dB,-, respectively.
Each operator 24, 34, 44 moves so as to be 195 dB. Here, as described above, −∞ (−210 dB)
To -60 dB, each operator 14, 2
Since the gain is suddenly changed at once in response to the position changes of 4, 34, and 44, the operating elements 24 and 3 are changed.
Nos. 4 and 44 move to the -∞ scale position at once.
Therefore, in this state, all the operators 14, 2
4, 34, and 44 will be located on the -∞ scale.

[0016]

However, as described above, in the state where the operators 14, 24, 34, 44 are located at the scale of -∞, the slave faders 20, 3 are provided.
0 or 40, for example slave fader 3
It is assumed that, for example, the hand of the operator 34 of 0 touches unexpectedly (mis-touch), and as a result, the operator 34 is slightly moved upward as shown exaggeratedly in FIG. . Then, due to the movement of the operator 34, the gain of the channel Ch3 is suddenly increased to, for example, -59d.
Suppose it has risen to B. In this state, when the operator 14 of the master fader 10 is operated to increase the gain of the channel Ch1 to, for example, -50 dB, the channels Ch2, Ch3, and Ch4 are correspondingly increased by +1.
The operators 24, 34, 44 move so that a gain of 60 dB (= −50 dB − (− 210 dB)) is given. As a result, as shown in FIG. 11, channel C
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), and the operator 34 also reaches the upper limit position. Therefore, there is a problem that the balance of gains among the channels Ch1, Ch2, Ch3, and Ch4 is significantly lost.

The above problem is a fatal problem for this digital mixing apparatus used in a theater or the like where many audiences gather, and in order not to cause this problem, the operator always operates each operator 24, 34, 44. I was operating while paying close attention to the position. However, each operator 24,
Even if attention is paid to the positions of 34 and 44, they may be overlooked because an abrupt position change (movement amount) due to a mis-touch of each operator, which causes the above problem, is very small. . Further, the above problem is caused by each operator 2
When 4, 4, and 44 are moved to their respective lower limit positions (-∞ scale position) at once, they may also be caused by the reaction of bouncing upward from the lower limit position.

Therefore, according to the present invention, the gain imbalance between the channels Ch1, Ch2, Ch3 and Ch4 caused by the abrupt position change (movement) of the operators 24, 34 and 44 as described above is performed. It is an object of the present invention to provide a fader device that can be prevented in advance.

[0019]

According to a first aspect of the present invention, there is provided a fader device for controlling, for each channel, the processing state of the signal processing means for processing signals input from a plurality of channels. , An operator provided for each of the above channels and capable of operating in an equivalent variable range,
The signal processing means includes control means for controlling a processing state of each of the channels so as to process a signal input from each of the channels in response to an operation of each of the operators, and the control means includes , When the operator of a predetermined channel of the respective channels is operated to change the processing state of the predetermined channel, a change equivalent to the change of the processing state is applied to each of the channels other than the predetermined channel. A variable that generates a control signal for changing each operator of each channel other than the predetermined channel so as to give a processing state and changes each operator of each channel other than the predetermined channel according to the control signal. In a master-slave type fader device provided with means, the control means controls the operator of the predetermined channel, for example, the master fader. Sakuko is in one end of the variable range,
And an operator of a channel other than the above predetermined channel,
For example, one of the slave fader operators is in a predetermined area within the variable range, and in this state, the master fader operator is operated to change the processing state of the corresponding predetermined channel. At this time, for any one of the slave fader operators, after changing it to one end of the variable range, a change equivalent to the change in the processing state of the predetermined channel is applied to the operating state of the channel. The control signal for changing the operator of any one of the slave faders is generated as described above.

The predetermined area means that the operator of any one of the slave faders originally has to be at one end of the variable range, but it is abruptly for some reason (other than one end of the variable range). ()) The area that is thought to have changed.

That is, when the operator of the master fader and the operator of any of the slave faders must be at one end of the variable range, the operator of any of the slave faders suddenly changes for some reason. Suppose In this state, if you operate the master fader operator, the slave fader operator will change to one end of its variable range and then
It is automatically operated (master / slave control) so as to give a change equivalent to the change in the processing state of a predetermined channel to the processing state of any of the above channels in accordance with the operation of the master fader operator. . In other words, the operator of any one of the slave faders is first master-slave controlled after the abrupt change is corrected.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION A fader device according to the present invention applied to, for example, a digital mixing device,
An example of the embodiment will be described with reference to FIGS. 1 to 5. The circuit configuration of the digital mixing apparatus according to the present embodiment is equivalent to that of the conventional art shown in FIG. 6 described above, and only the control procedure by the control circuit 2 is different.
Therefore, the circuit configuration is shown in FIG.
For the relationship between the operating positions of 4, 24, 34, ... And the gain of the DSP 1, refer to FIG. 7, respectively, and detailed description thereof will be omitted.

That is, the control circuit 2 is composed of, for example, a CPU (Central Processing Unit) and operates according to a program stored in the storage unit 3. The storage unit 3 stores, for example, a program for operating the control circuit 2 according to the flowcharts shown in FIGS. 2 to 4, and the storage unit 3 stores, for example, a ROM or RA.
It is composed of M and the like.

Now, assume that this digital mixing apparatus is operating in a certain state. Here, the operators 24, 34, ... Of the slave faders 20, 30 ,.
When is operated, the control circuit 2 operates according to the flowchart shown in FIG.

First, the above-mentioned operators 24, 34, ...
, Are respectively detected by the touch signals from the touch detection units 27, 37, ... (Step S202).

When the touch signal is output in step S202, the operators 24, 34, ... Of the slave faders 20, 30 ,.
Is determined to be operated, and the operator 24, 34, ...
.. are released from the holding control (servo operation) of the motors 26, 36, ...
04). As a result, in each of the slave faders 20, 30, ...
4, 34, ... Can be operated.

The positions of the operators 24, 34, ... Are detected by the operator position detectors 25, 35, .. (step S206), and the channels corresponding to the detected positions are detected. The DSP 1 is controlled so as to change the gains of Ch2, Ch3, ... (Step S2
08). Then, this step S206 and step S
The operation of 208 is repeated until the touch signal is no longer output, that is, until the finger is released from each of the operating elements 24, 34, ... (Step S210).

In step S210, when it is detected that the finger is separated from each of the operators 24, 34, ...
The motors 26, 36, ... Are controlled so as to maintain the positions of the operators 24, 34, ... At the time of detection (step S212), and the process returns to step S202 again.

In step S202, the operating position of each of the operating elements 24, 34, ... Is always detected even when the operating element 24, 34 ,. In step S214), it is monitored whether the detected position has changed (step S216). It is conceivable that each of the operating elements 24, 34, ... Is operated by, for example, an insulated gloved hand or a pen tip, and in this case also, the operating elements 24, 34 ,. .. to allow operation of. In addition, each operator 24,
This is also to prevent a mechanical overload from being applied to the motors 26, 36, ... Holding these, when a large external force is applied to them.

That is, in step S216, when the positions of the operators 24, 34, ... Are not changed, it is determined that the operators 24, 34 ,. , And returns to step S202. However, when the positions of the operators 24, 34, ... Change, it is considered that some external force is applied to the operators 24, 34 ,. Judge whether it is a product or a product that is hung by chance.

For example, after the positions of the operating elements 24, 34 ... Change and before a predetermined time, for example, an instantaneous time of about 0.2 seconds elapses, the operating elements 24, 34 ,.
Is returned to the original position (the position before the change) (step S218). Here, operator 2
, 34, ... are returned to their original positions,
Since it is considered that the change in the above position is accidental (for example, something hits each of the operators 24, 34, ... And they momentarily moved due to the reaction),
Step S2 so as to hold each of the above original positions
Proceed to 12.

On the other hand, if the positions of the manipulators 24, 34, ... Do not return to their original positions after the lapse of the predetermined time, it is considered that they are intentionally operated.
The gains of the channels Ch2, Ch3, ... Corresponding to the respective positions are changed according to the changed positions (step S220). Then, the process proceeds to step S212 so as to retain the changed position.

As mentioned above, each slave fader 20,
In the case of 30, ...
By operating (moving) 4, ..., It is possible to control the gains of the channels Ch2, Ch3 ,.

On the other hand, when the operator 14 of the master fader 10 is operated, the control circuit 2 operates according to the flow charts shown in FIGS.

That is, as shown in FIG. 2, first, whether or not the operator 14 of the master fader 10 is touched with, for example, a finger is detected by a touch signal from the touch detection unit 17 (step S102).

When the touch signal is output,
It is determined that the operator 14 of the master fader 10 is being operated, and the holding control (servo operation) of the motor 16 holding the position of the operator 14 is released (step S104). As a result, the operator 14 of the master fader 10 can be operated.

Then, the position of the operator 14 is detected by the operator position detector 15 (step S106),
It is confirmed whether or not the manipulator 14 is located at the lower limit position of the master fader 10, that is, at the -∞ scale (step S108).

In step S108, if it is determined that the manipulator 14 is located at the -∞ scale position, first, the manipulators 24, 34, ... Of the slave faders 20, 30 ,. The position of is detected by each operator position detection unit 25, 35, ... (Step S1)
10). Then, the respective operators 24, 34, ...
For example, it is confirmed whether or not it is located in a predetermined prohibited area as shown in FIG. 7 (step S112). Note that this prohibited area is, for example, a position slightly above the -∞ scale (a position where the gain of the DSP 1 is -60 dB).
To the -50 dB scale position.

If it is determined in step S112 that any one of the operators 24, 34, ... Is in the prohibited area, the operators 24, 34 in the prohibited area are determined. , Are once moved to the -∞ scale position (lower limit position), and the gain of the corresponding channel is set to the lower limit value, that is, -210 dB (step S104).

The operator 14 of the master fader 10
The gain of the channel Ch1 corresponding to the master fader 10 is changed according to the operation position of (step S1).
16). At the same time, a gain variation equivalent to that of the channel Ch1 is applied to the other channels Ch2, Ch3, ...
・ As also given to each slave fader 20, 30,
The positions of the operators 24, 34, ... Are moved by the motors 26, 36 ,.
18).

In step S108 described above,
When it is determined that the operator 14 of the master fader 10 is not located on the -∞ scale, and in step S112, the operators 24, 34, ... Of the slave faders 20, 30 ,. If it is determined that all are outside the prohibited area, the process proceeds to step S116.

The master fader 10 performs the operations from step S106 to step S118.
Until the touch signal is no longer output, that is, until the finger is released from the operator 14 of the master fader 10 (step S120).

In step S120, when it is detected that the finger is separated from the operator 14 of the master fader 10, the operator 14 of the master fader 10 at the time of detection is detected.
, And the respective motors 16, 26, 36, ... To control the positions of the operators 24, 34, ... Of the slave faders 20, 30 ,.
2) Then, the process returns to step S102 again.

In step S102 described above,
Even when the finger is not touched on the manipulator 14, the operation position of the manipulator 14 is always detected (step S124), like the operation of each slave fader 20, 30, ... Shown in FIG. It is monitored whether the detected position has changed (step S126).

That is, in step S126, when the position of the manipulator 14 has not changed, it is determined that the manipulator 14 is not operated, and the process returns to step S102 of FIG. However, when the position of the operating element 14 changes, it is considered that some external force is applied to this operating element 14, so that the external force is intentional or accidentally applied. Determine if it is a thing.

For example, after the position of the operating element 14 has changed, a predetermined time, for example, an instantaneous time of about 0.2 seconds has passed, the operating element 14 has its original position (before the change). It is confirmed whether it has returned to the position (step S12).
8). Here, when the manipulator 14 is returned to the original position, the change in the position is accidental (for example, something hits the manipulator 14, and the manipulator 14 momentarily moves due to the reaction. Since it is considered that the original position has been moved, the process proceeds to step S122.

On the other hand, if the position of the manipulator 14 does not return to the original position after the lapse of the predetermined time, it is considered that the manipulator 14 has been consciously operated. In this case, first, it is confirmed whether or not the operator 14 is located at the lower limit position of the master fader 10, that is, at the -∞ scale (step S1).
30).

Then, in step S130,
If it is determined that the operator 14 is at the -∞ scale position, the position of each operator 24, 34, ... of each slave fader 20, 30, ... is detected (step S).
132), and it is confirmed whether or not these are located in the above-mentioned prohibited area (step S134).

In step S134, if it is determined that any one of the operators 24, 34, ... Is in the prohibited area, the operators 24, 34 in the prohibited area. , Are once moved to the -∞ scale position (lower limit position), and the gain of the corresponding channel is set to the lower limit value, that is, -210 dB (step S136).

Then, according to the operation position of the operator 14 after the change of the master fader 10, the master fader 10
The gain of the channel Ch1 corresponding to is changed (step S138). At the same time, this channel Ch1
Change amount of gain equivalent to that of other channels Ch2, Ch
Each slave fader 2 as given to 3, ...
The positions of the respective operators 24, 34, ... Of 0, 30, ... Are moved by the respective motors 26, 36 ,. Then, the changed operators 14, 2
The process proceeds to step S122 so as to maintain the positions of 4, 34, ....

In step S130 described above,
When it is determined that the operator 14 of the master fader 10 is not located on the -∞ scale, and in step S134, the operators 24, 34, ... Of the slave faders 20, 30 ,. If it is determined that they are all outside the prohibited area, the process proceeds to step S138.

As described above, in this digital mixing device, the operator 14 of the master fader 10 is
At the ∞ scale position (lower limit position), one of the slave faders 20, 30, ...
When the operating elements 14 of the master fader 10 are operated in the state where 34, ... Are in the prohibited area, the operating elements in the prohibited area are once moved to the -∞ scale position (lower limit position). After moving to
It is configured to move (master / slave control) according to the operation of.

For example, as a digital mixing apparatus as described above, the same 4 as the conventional art described above is used.
Considering the channel configuration, each channel Ch1, C
The gains of h2, Ch3, and Ch4 are −20 dB, −20 dB, and −20 d, respectively, as shown in FIG. 8 described above.
It is assumed that B and -5 dB are set.

In this state, as shown in FIG. 1, the operator 14 of the master fader 10 is operated to operate the channel C.
If the gain of h1 is suddenly moved to the position of -∞ and the gain of this channel Ch1 is set to -210 dB,
-20 for each channel Ch2, Ch3, Ch4
The operators 24, 34, 44 move so that a gain of 0 dB (= −210 dB − (− 10 dB)) is given. At this time, the operators 24, 34, 44 are
All of them move to the -∞ scale position, but the gain of each channel Ch2, Ch3, Ch4 is-
Values of 210 dB, -210 dB, and -195 dB are set, and these values are stored in the storage unit 3.

Here, as described above, the respective operators 14, 2
In a state where 4, 34, 44 are at the -∞ scale position, one of the slave faders 20, 30, 40, for example, the operator 34 of the slave fader 30 is inadvertently touched by the hand ( It is assumed that the touch panel is mistouched), and as a result, the operator 34 is moved slightly upward, as shown by the dotted line in FIG. Then, it is assumed that the gain of the channel Ch3 is suddenly increased to, for example, −59 dB by the movement of the operator 34.

In this state, the operator 14 of the master fader 10 is operated to change the gain of the channel Ch1 to, for example, -5.
When it is raised to 0 dB, each channel Ch
+160 dB (= -50 for 2, Ch3, Ch4)
A gain of dB − (− 210 dB)) is given. However, since the manipulator 34 of the slave fader 30 corresponding to the above-mentioned channel Ch3 is located in the above-mentioned prohibited area (just above -∞ from the -50 dB scale position), FIG. As shown by the arrow, after once moving to the lower limit position (-∞ scale position), it moves according to the operation of the operator 14 (master / master).
Slave controlled). That is, for channel Ch3, after being set from -59 dB to -210 dB,
The gain of +160 dB is given.
As a result, the gains of the channels Ch1, Ch2, Ch3, and Ch4 corresponding to the faders 10, 20, 30, and 40 are −50 dB and −, respectively, as shown in FIG.
The gain is 50 dB, -50 dB, and -35 dB, and the gain imbalance as in the prior art shown in FIG. 11 does not occur.

As described above, according to the present embodiment, it is considered that the manipulator 34 located in the prohibited area is abruptly changed in position. The operator 34 is configured to correct the above-mentioned unexpected position change. Therefore, during master / slave control, it is possible to prevent the gain balance from being lost among the channels Ch1, Ch2, Ch3, ... Caused by the abrupt position change.

In this embodiment, the operators 14, 24, 3 of the faders 10, 20, 30, ...
The case where the gain in the DSP 1 is adjusted by the operations of 4, ... Is described, but the present invention is not limited to this, and for example, the frequency characteristic or the phase characteristic may be changed. Further, although the description has been given of the case where the fader device is applied to the digital mixing device, the present technology can be applied to other devices, for example, an equalizer and in-pipe broadcasting equipment.

Further, each channel Ch1, Ch2, Ch
The gain adjustment of 3, ...
Although the adjustment is performed using 1, 21, 31, ..., However, the present invention is not limited to this, and for example, a rotary resistor (rotary variable resistor) or the like may be used.

Although the fader 10 corresponding to the channel Ch1 is the master fader here, the other faders 20, 30, ... May be used as the master fader.

Further, the prohibited area in the present embodiment means that each of the operators 24, 34, ... Is originally a −∞ scale position (lower limit position) of each slave fader 20, 30 ,. Although it must be in the area, it is an area that is thought to have suddenly moved there for some reason. Here, in the present embodiment, the upper limit of the prohibited area is set to the -50 dB scale position and the lower limit is set to a position slightly above -∞, based on the following grounds.

That is, the upper limit is set to the -50 dB scale position because the operating elements 24, 34, ... Move upward due to a mis-touch on them or when they are moved to the lower limit position all at once. This is because even if the position is moved to, the moving position is considered to be equal to or less than the scale position of −50 dB at most. If the operating elements 24, 34, ... Are located above the -50 dB scale, it is generally natural that they are operated intentionally. Therefore, the upper limit position is a position below the scale of -50 dB (gain value of -50 dB or less), and in the present embodiment, the scale position is -50 dB.

On the other hand, the lower limit position is -140.
It is set between the position corresponding to the gain value of dB and the position corresponding to −60 dB. That is, each fader 10, 20,
30 ..., the respective operators 14, 24,
The range in which the gain can be adjusted by operating 34, ..., That is, the adjustable range in FIG. 7 is from −60 dB to +10.
It is set to 70 dB up to dB. Therefore, it is generally considered that the gain disparity among the channels Ch1, Ch2, Ch3, ... When the digital mixing apparatus is actually used is within 70 dB. Therefore, with respect to the lower limit value (−210 dB) of the gain variable range of each fader 10, 20, 30, the above 7
A value corresponding to a value obtained by subtracting 70 dB from the upper limit value (+10 dB) of the gain variable range, that is, −60 dB from a value obtained by adding 0 dB, ie, −140 dB, that is, a position corresponding to a gain value up to −60 dB is set as the lower limit position. In the present embodiment, the position corresponding to −60 dB (the position slightly above the scale of −∞) is set, but it is not limited to this as long as the above condition is satisfied.

It should be noted that each operator 24, 3 is placed in the prohibited area.
Whether or not 4, ... Are located may be detected by a position signal from each operator position detection unit 15, 25, 35 ,. From the value stored in the storage unit 3) (calculate)
You may derive it.

Further, the DSP 1 in this embodiment is
This D corresponds to the signal processing means described in the claims.
The gain (signal amplification factor) in SP1 corresponds to the processing state described in the claims. Further, the control circuit 2 that operates according to the program stored in the storage unit 3 corresponds to the control unit described in the claims, and each motor 16,
26, 36, ... Correspond to the variable means.

[0066]

In the fader device according to the first aspect of the present invention, the operators of the master fader and the slave fader must be at one end of their respective variable ranges, but the operators of the slave fader. When an operation of the master fader is operated in this state when the operator of this slave fader changes to a predetermined area due to this, the operator of the slave fader corrects the unexpected change. After that, the master fader is automatically operated (master / slave control) according to the operation of the operator of the master fader. That is, each slave fader is not master / slave controlled in the state where the above-mentioned abrupt change is left. Therefore, there is an effect that it is possible to prevent the imbalance of the processing state between the faders (channels) caused by the abrupt change described above, which is a problem in the above-mentioned conventional technique.

[Brief description of drawings]

FIG. 1 is a diagram showing 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 operating state of each fader.

FIG. 2 is a flowchart showing the same embodiment, showing the operation of the master fader.

FIG. 3 is a flowchart following FIG.

FIG. 4 is a flowchart showing the same embodiment, showing the operation of a slave fader.

5 is a diagram showing an example of a result of performing master / slave control in the state shown in FIG.

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 a relationship between an operator position and a gain of each fader in the digital mixing device.

8 is a diagram showing an example of an operating state of each fader in the digital mixing device shown in FIG.

9 is a diagram showing an example of a result of performing master / slave control in the state shown in FIG.

FIG. 10 is a diagram showing a state in which an operator of a certain fader (of channel Ch3) undergoes an abrupt position change in a conventional fader device.

11 is a diagram showing an example of a result of performing master / slave control in the state shown in FIG.

[Explanation of symbols]

 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

Claims (1)

[Claims] 1. A fader device for controlling the processing state of a signal processing means for processing signals input from a plurality of channels for each channel, wherein the fader device is provided for each channel and has an equivalent variable range. An operating element that can be operated by, and a control means that controls the processing state of each channel so that the signal processing means processes the signal input from each of the channels corresponding to the operation of each operating element, When the control means operates an operator of a predetermined channel of the respective channels to change the processing state of the predetermined channel, a change equivalent to the change of the processing state is given by the predetermined control means. A control signal for changing each operator of each channel other than the above-mentioned predetermined channel is generated so as to be given to each processing state of each channel other than the channel. In a fader device provided with a variable means for changing each operator of each channel other than the predetermined channel according to the control signal, the control means is such that the operator of the predetermined channel is at one end of the variable range. The operator of any channel other than the predetermined channel is in a predetermined area within the variable range, and in this state, the operator of the predetermined channel is operated to change the processing state of the predetermined channel. Then, for any of the above-mentioned channels, the operator is temporarily 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. And is configured to generate the control signal for changing the manipulator of any one of the channels as described above. Fader device to collect.