JPH07122944A - Program memory checking device for audio mixer - Google Patents

Abstract

PURPOSE:To check the contents of an optional program without affecting a present mixing execution state in an audio mixer for which plural mixing set states are stored and optionaly reproduced. CONSTITUTION:When an optional program number is selected by up/down keys 18 and 20 and a recall key 24 is pushed, the pertinent program is read from a program memory 48 and set to a flip-flop circuit 60, a relay circuit 64 is driven and program contents are realized. A check mode is attained when a check key 28 is pushed and when the optional program is selected by the up/down keys 18 and 20, the pertinent program is read from the program memory 48 and set to the flip-flop circuit 62 and the contents are displayed on an LED 38. At the time, since the contents immediately before shifting to the check mode are held in the flip-flop circuit 60, the mixing execution state is not changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for checking the contents of a program stored in a program memory of an audio mixer, and checks the contents of an arbitrary program without affecting the current mixing execution state. It was made possible.

[0002]

2. Description of the Related Art An audio mixer realizes a desired mixing state by setting various parameters relating to mixing such as fader level and equalizer setting, localization, effect selection, channel on / off and the like. Since there are many types of parameters to be set in the audio mixer, it is very laborious for the operator to reset these various parameters individually for each scene in a concert or the like.

Therefore, in recent audio mixers, a plurality of types of mixing programs with variously set parameters are registered in advance in a memory (called a program memory, a scene memory, etc.), and in an actual concert or the like, a program number is set for each scene. Is designated to read out the corresponding program to reproduce the parameter setting state indicated by the program, thereby reducing the labor of the operator.

For the operation of reproducing the registered program, for example, the operator selects the program number to be reproduced (the selected program number is displayed),
By operating the keys called recall key etc.,
The selected program is read from the program memory, each parameter is automatically set to the state indicated by the program, and the mixing state is reproduced. The reproduced contents of each parameter can be displayed by the display means.

[0005]

When an audio mixer having a programming function is used, it is sometimes desired to check the programmed contents (setting status of various parameters). If you didn't reproduce, you couldn't confirm the contents of the program. For this reason, when the program is reproduced, the mixing execution state up to that point is changed, so it was not possible to confirm the content of the arbitrary program during the actual concert.

If, for example, one channel loses sound due to a problem with a cable or a relay box during a concert or the like, it is possible to transfer the musical instrument assigned to that channel to another empty channel for all programs. Although necessary, the conventional audio mixer cannot change the content of the program unless the program is reproduced, so that the content of the program to be reproduced cannot be changed in advance.

The present invention solves the above problems in the prior art so that the programmed contents can be confirmed even when another program is reproduced, and even when a certain program is reproduced. An object of the present invention is to provide a program memory check device for an audio mixer, the setting contents of which can be changed for another program.

[0008]

The invention according to claim 1 is
A program memory for storing a plurality of types of mixing programs indicating the setting contents of parameters for realizing a specific audio mixing state, and a program selecting operation means for performing an operation of selecting an arbitrary program from the mixing programs stored in the program memory A program read control means for reading out a program selected and operated by the program selection operation means from the program memory, and a program execution instruction operation means for instructing execution of the program read out from the program memory,
Program confirmation instruction operating means for instructing confirmation of a program read from the program memory, execution program holding means for holding a program instructed to be executed among programs read from the program memory, and the execution program holding means. A mixing control means for realizing a mixing state indicated by the held program, and a program content display means for displaying the content of the program instructed to be confirmed among the programs read from the program memory. Is.

According to a second aspect of the invention, there is provided a program modifying means for creating a program in which the parameters of the program displayed on the program content displaying means are modified based on the modifying operation by the operator, and the modified program. Is further provided with program updating means for updating and registering the uncorrected program in the program memory based on the registration operation of the operator.

[0010]

According to the first aspect of the invention, among the programs read from the program memory, the program for which the operator has instructed the execution is held in the execution program holding means to perform mixing, and the program for which the confirmation is instructed is executed. Since it is displayed without holding it in the execution program holding means, the setting contents of any program can be displayed without affecting the execution program (that is, without changing the holding program of the execution program holding means). You can check it.

According to the second aspect of the invention, since the contents of the program displayed on the display means can be modified and re-registered in the program memory, the execution program is not affected ( That is,
It is possible to correct the contents of other programs (without changing the holding program of the execution program holding means), and it is possible to easily deal with a channel failure or the like during a concert.

[0012]

An embodiment of the present invention will be described below. Here, the case of programming ON / OFF of each channel is shown.

FIG. 2 shows a part of the control panel (master section 1) of the audio mixer 10 to which the present invention is applied.
Channel modules 14, 1 for 2 and 2 channels
5) is shown. An up key 18 and a down key 20 are arranged in the master unit 12. These keys 18 and 20 correspond to the program selection operation means. When the up key 18 is pressed, the program number is increased, and when the down key is pressed, the program number is decreased. Up key 1
The program number currently selected with the 8 or down key 20 is displayed on the 7-segment LED 22.

The recall key 24 is a 7-segment LED
A key for instructing the execution of the program number displayed at 22 corresponds to the program execution instructing operation means. When the recall key 24 is pressed, the program of the program number displayed on the 7-segment LED is read from the program memory and held in the execution program holding means,
The parameters of each channel module 14, 15, ... Are automatically set to the state indicated by this program, and the mixing of their contents (here, channel on / off) is executed.

The store key 26 is a key for registering a program created by the operator arbitrarily operating the channel modules 14, 15, ... To set the parameters. The setting state is registered in the program memory as the program of the program number displayed on the 7-segment LED 22. In this case, the original program registered for that program number is erased.

The check key 28 is a key for shifting to a check mode for confirming the contents of the program stored in the program memory, and corresponds to the program confirmation instruction operating means. Press this to enter check mode. When the check mode is entered, the program that was being executed immediately before that is continuously executed and the subsequent operation of the recall key 24 is invalidated. In the check mode, when the up key 18 and down key 20 are operated to select the program number, the 7-segment LED 2
The program having the program number displayed in 2 is immediately read from the program memory and the content is displayed on the display means (in this embodiment, the on / off setting state of each channel is displayed). When the check key 28 is pressed again, the check mode is canceled and the subsequent operation of the recall key 24 is validated.

The direct recall key 30 is a dedicated one-touch key for calling the programs having program numbers 1 to 8. By pressing any one of the keys, the corresponding program is read from the program memory,
The parameters of each channel 14, 15, ... Are automatically set to the state indicated by this program, and the mixing of the contents is executed. As a result, the same content as selecting one of the program numbers 1 to 8 with the up key 18 and the down key 20 and pressing the recall key 24 to determine the execution program can be realized by one-touch operation. Even if the system is in check mode,
Recall is possible by pressing this key. However, even if you recall with this key, 7-segment LED2
2 displays the memory number being checked, and the check mode continues.

Channel modules 14, 15, ...
Is a fader operator 32, channel on / off and edit key 34, channel on / off display LED
36, a channel check LED 38, and other operators are arranged. The channel on / off and edit keys 34 are keys for changing the on / off state of each channel in the currently executed mixing when unchecked, and each time the key is pressed, the on / off state of that channel is changed. It is reversed and the mixing state is changed. When the store key 26 is pressed after the change, the content itself of the program memory is updated. At the time of checking, the key is for changing the on / off state of each channel in the program number displayed on the 7-segment LED 22. The on / off state of the channel is inverted each time the key is pressed. If you press the store key 26 after changing,
The program itself of the corresponding number in the program memory is updated.

Channel on / off display LED 36
Indicates the ON / OFF state of each channel in the currently executed mixing. The ON channel is lit and the OFF channel is OFF. As a result, it is possible to know the on / off state of each channel in the currently executed mixing. This display continues even in the check mode.

The channel check LED 38 is for displaying the on / off setting state of each channel in the program number displayed on the 7-segment LED 22 in the check mode. The channel set to on is turned on and off. The set channel turns off. As a result, the setting state of an arbitrary program can be confirmed while maintaining the current mixing execution state. Further, when the channel on / off and edit keys 34 are pressed during the check to change the channel setting state, the channel check LED 38 also changes the display accordingly. When the check mode is released, all channel check LEDs 38 are turned off. The keys 18, 20, 24, 26, 28, 30,
The switch 34 is composed of a switch that is closed when pushed and opened when released.

FIG. 1 shows the internal circuit configuration of the audio mixer 10 shown in FIG. This circuit is the scene main board 4
0, a distributor board 42, and a channel section board 43. The scene main board 40 is a board commonly used for all channels, and includes a CPU 44 and a ROM 4
6, RAM 48, module address decoder 50 and the like. The RAM 48 constitutes a program memory and can store a plurality of (for example, 96 types) mixing programs. The RAM 48 is backed up by the battery 52, and the stored contents are not erased even when the main power of the audio mixer 10 is turned off.

The CPU 44 controls the reading of the mixing program from the RAM 48 as program reading control means.
Program correction control is performed as program correction means, program update control is performed as program update means, check mode switching control, and various other controls necessary for mixing are executed. The ROM 46 stores programs for executing these various controls. In the non-check mode, the mixing program read control by the CPU 44 displays the program number selected and instructed by the up / down keys 18 and 20 on the 7-segment LED 22, and the recall key 24 is pressed to display this displayed program. The ON / OFF information DATA of each channel (all 40 channels in this embodiment) read from the RAM 48 and shown by the program is time-divisionally output in the order of channels. At this time, the recall signal RECALL is output while the on / off information DATA is being output.
When the check key 28 is pressed to enter the check mode, the on / off information DATA of the program number selected and instructed by the up / down keys 18 and 20 is time-divisionally output in the order of channels. At this time, on / off information D
The check signal CHECK is output while the ATA is being output.

The CPU 44 outputs 6-bit channel information CH indicating which channel the currently output on / off information DATA belongs to in synchronization with the on / off information DATA which is time-divisionally output. To be done. The module address decoder 50 decodes the upper 4 bits of the channel information CH and outputs module information MODULE # 1 to # 10 indicating which of the 40 channels is divided into 10 by 4 channels.

As the distributor board 42, one board is provided for every four channels and a total of ten boards are prepared.
A channel address decoder 54 is arranged on each substrate 42. The channel address decoder 54 selects one of the distributor boards 42 designated by the module information MODULE # 1 to # 10, decodes the lower 2 bits A0 and A1 of the channel information CH, and outputs the channel signals CH1 to CH4. . The ten distributor boards 42 are for ON / OFF information DATA,
The recall signal RECALL and the check signal CHECK are commonly input.

The channel section substrate 43 is provided for each channel and a total of 40 are prepared. Two D flip-flop circuits 60 and 62 are prepared on the channel section substrate 43, and the channel ON / OFF information DATA output from the CPU 44 is commonly input.
The AND circuit 56 outputs "1" at the time division timing assigned to its own channel when the recall signal RECALL is output, and outputs the ON / OFF information DA.
Latch TA in the D flip-flop circuit 60. As a result, the D flip-flop circuit 60, as the execution program holding means, holds the on / off information of its own channel of the program instructed to be executed. Relay circuit 6
4 indicates that the Q output of the D flip-flop circuit 60 is "1".
In the case of (instruction to turn on the channel), the relay 64a is excited to turn on the channel switch 64b to turn on the channel. Further, the channel on / off display LED 36 is turned on. D flip-flop circuit 60
When the Q output of is 0 (instructing to turn off the channel), the relay 64a is demagnetized, the channel switch 64b is turned off, and the channel is turned off. Further, the channel on / off display LED 36 is turned off.

The AND circuit 58 has a check signal CHEC.
When K is output, "1" is output at the time-division timing assigned to its own channel, and ON / OFF information DATA is latched in the D flip-flop circuit 62. As a result, the D flip-flop circuit 62 holds the on / off information of its own channel of the program instructed to be confirmed. When the Q output of the D flip-flop circuit 62 is "1", the channel check LED 38 is turned on, and when it is "0", it is turned off.

The one-shot circuit 66 outputs a one-shot pulse every time the channel on / off and the edit key 34 are pressed, turns on the transistor 70, and interrupts the CPU 44. When the CPU 44 inputs the interrupt signal INTERRUPT, the channel information CH
Is output and a one-shot pulse is output, 1
Up to 40 channels are scanned, and the gate circuit 68 for each channel provided at the output of the one-shot circuit 66 is turned on. This allows the channel on / off and edit key 34 to be turned on from the turned-on channel 3
A signal CH KEY indicating that 4 is turned on is output. This signal is sent to the CPU 44. When the CPU 44 inputs the signal CH KEY, in the non-check mode, the correction information for inverting ON / OFF of the corresponding channel of the program being executed is created, and the inverted ON / OFF information DATA, the recall signal RECALL and the corresponding channel are generated. The information CH is output and the D flip-flop 60 is output.
Invert the Q output of to correct the execution program.
The correction information is stored in the CPU 44 or the like, and the store key 26
By pressing, the corresponding program in the program memory 48 is updated with the corrected contents.

In the check mode, correction information for inverting ON / OFF of the corresponding channel of the displayed program is created, and the inverted ON / OFF information DATA, check signal CHECK and corresponding channel information C are created.
H is output and the Q output of the D flip-flop circuit 62 is inverted to correct the displayed program. The correction information is held in the CPU 44 or the like, and by pressing the store key 26, the corresponding program in the program memory 48 is updated to the corrected contents.

An example of the control flow by the CPU 44 of the circuit of FIG. 2 is shown in FIG. First, it is detected whether or not the check key 28 is turned on (S1), and when it is not turned on, the execution mode is performed. That is, when a program is selected with the up / down keys 18 and 20 (S2), the selected program number is 7 segment L.
It is displayed on the ED 22 (S3). When the program number to be executed is selected and the recall key 24 is pressed (S4), the corresponding program (channel on / off information) is read from the program memory 48, and the on / off information for each channel is the D flip-flop circuit. The program is set to 60 and the program is executed (S5). In addition,
This can also be realized by operating the direct recall key 30 (S6). The on / off state of the channel is displayed on the channel on / off display LED 36. When the channel on / off and edit key 34 is pressed after executing the program (S7), the corresponding channel on / off state is reversed (S8), and the store key 2 is pressed.
When 6 is pressed (S9), the contents themselves of the program memory 48 are updated to the corrected contents (S10).

When the check key 28 is turned on, the check mode is performed. That is, the subsequent operation of the recall key 24 is invalidated, and the immediately preceding execution state is continued (S11). When the user operates the up / down keys 18 and 20 to select the program to be confirmed (S12), the selected program number is displayed on the 7-segment LED 22 (S13). Then, the corresponding program (channel on / off information) is read from the program memory 48, and on / off information for each channel is set in the D flip-flop circuit 62 and displayed on the channel check LED 38 (S14). ). When the channel on / off and edit keys 34 are pressed in this state (S15), the corresponding channel on / off display is highlighted (S16), and the store key 26 is further pressed (S1).
7), the contents themselves of the program memory 48 are updated to the corrected contents (S18).

When the check key 28 is turned on again (S1
9) The D flip-flop circuits 62 of all channels are reset, all the channel check LEDs 38 are turned off, and the operation of the recall key 24 is validated (S2).
0), return to the execution mode. Even in the check mode, the execution program can be changed by the direct recall key 30 (S21, S22).

An example of using the audio mixer 10 in the concert, which is controlled as described above, will be described.
First, it is assumed that the allocation of each channel is set as shown in FIG. In this example, musical instruments and microphones that are not used in the middle of the concert are set off to secure the S / N. Program 1, 2, 3, as the scene progresses
It will be switched to 4, ... This switching operation is up / down key 1 when there is no trouble.
This is done by sequentially selecting the program number for each scene at 8 and 20 and pressing the recall key 24. here,
During the concert, for example, Hi-hat on channel 3
Suppose you find out that there is no sound due to a cable in the line or a relay box in the middle. In this case, since there is no room to pursue the cause of the failure in the middle of the live concert, it becomes necessary to transfer the allocation of channel 3 to another empty channel (for example, channel 12). Since the channels 3 and 12 are not used at the time of the program 3, the channel of the channel 3 is moved to the channel 12 at this time. That is, while the program 3 is being executed, the check key 28 is pressed to enter the check mode, the program 4 is selected, the channel 3 and 12 channel on / off and edit keys 34 are pressed to turn off the channel 3 and turn on the channel 12 and store. Key 26
Press. With this, the contents of the program 4 are changed. Similarly for programs 4 and later, the programs for which channel 3 is set to ON are changed. When the change work is completed, the check key 28 is pressed to return to the execution mode. Even in this case, since the contents held in the D flip-flop circuit 60 are not changed, it is possible to check and modify other programs without affecting the mixing state currently being executed.

In the above embodiment, the execution instruction is made by the recall key 24 and the confirmation instruction is made by the check key 28. However, the execution and the confirmation can be separately performed without dividing the keys. For example, each time the up / down keys 18 and 20 are used to select and instruct a program number, the corresponding program is read from the program memory 48 and the program number is displayed on the 7-segment LED 22.
By displaying the program on the ED 38 and pressing the recall key 24, the currently displayed program can be held in the execution program holding means 60 and displayed on the channel on / off display LED 36 to be executed. By doing so, the recall key 24 serves as both the program execution instruction means and the program confirmation instruction means. That is, pressing the recall key 24 is a program execution instruction, and not pressing the recall key 24 is a program confirmation instruction. In this case, if a key for giving a correction instruction is provided and control is performed such that when the key (for example, the store key 26) is operated, the contents of the program memory are corrected without executing the displayed program, the program memory It is also possible to modify the contents of. For example, with respect to the displayed program, after operating the channel on / off and edit keys 34 and the like to correct the contents, the recall key 24 is pressed to execute the corrected contents, and the store key 26 is pressed to execute it. Without program memory 48
Only the contents of can be updated.

In the above embodiment, the channel is turned on,
Although the case of programming OFF has been described, the present invention can be applied to the case of programming other parameters.

[0035]

As described above, according to the first aspect of the present invention, among the programs read from the program memory, the program to which the operator has given the execution instruction is held in the execution program holding means and the mixing is executed. Since the program for which confirmation is instructed is displayed without being held in the execution program holding means, it does not affect the execution program (that is,
The setting contents of an arbitrary program can be displayed and confirmed without changing the stored program of the execution program holding means.

According to the second aspect of the present invention, since the contents of the program displayed on the display means can be modified and re-registered in the program memory, the execution program is not affected ( That is,
It is possible to correct the contents of other programs (without changing the holding program of the execution program holding means), and it is possible to easily deal with a channel failure or the like during a concert.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, and is a circuit configuration diagram inside an audio mixer 10 of FIG. 2.

FIG. 2 is a diagram showing an embodiment of a panel arrangement of an audio mixer to which the invention is applied.

FIG. 3 is a diagram showing an example of a control flow by the CPU of FIG.

FIG. 4 is a diagram illustrating an example of use of the audio mixer of FIG. 1 in a concert.

[Explanation of symbols]

18, 20 Up / Down key (program selection operation means) 24 Recall key (program execution instruction operation means) 28 Check key (program confirmation instruction operation means) 38 Channel check LED (program content display means) 44 CPU (program read control) Means, program correcting means, program updating means) 48 RAM (program memory) 60 D flip-flop circuit (execution program holding means) 64 relay circuit (mixing control means)

Claims (2)

[Claims] 1. A program memory for storing a plurality of types of mixing programs showing setting contents of parameters for realizing a specific audio mixing state, and an operation for selecting an arbitrary program from the mixing programs stored in the program memory. Program selection operation means, program read control means for reading the program selected and operated by the program selection operation means from the program memory, program execution instruction operation means for instructing execution of the program read from the program memory, Program confirmation instruction operating means for instructing confirmation of a program read from a program memory, and an execution program storage for holding the program instructed to be executed among the programs read from the program memory Means, a mixing control means for realizing a mixing state indicated by the program held in the execution program holding means, and a program content for displaying the content of the program instructed to be confirmed among the programs read from the program memory A program memory check device for an audio mixer, comprising: a display means. 2. Program modifying means for creating a program in which the parameters of the program displayed on the program content displaying means are modified based on the modifying operation by the operator, and the modified program based on the registering operation by the operator. 2. The program memory check device for an audio mixer according to claim 1, further comprising a program updating unit for updating and registering the program before correction in the program memory.