JP2005274822A - Acoustic signal processor, acoustic signal processing system and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To unify the value of a parameter concerned with a link among devices in which the corresponding link is set independently of the state of a master device when the link of the parameter is set. <P>SOLUTION: When a link for sharing the value of a parameter to be used for controlling a digital mixer allowed to be cascade-connected to other digital mixers with the other connected digital mixers is set, the digital mixers in which links corresponding to the set link are set are retrieved successively from the most downstream digital mixer to the upstream side (S4, S5), and when a device in which a corresponding link is set is detected, the value of the parameter concerned with the link is acquired from the detected device (S6, S7) and the acquired value is set as the value of a parameter concerned with the link (S8). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention provides an acoustic signal processing device that can connect an acoustic signal processing device to the upstream side and / or the downstream side, an acoustic signal processing system including a plurality of such acoustic signal processing devices connected, and a computer as described above. The present invention relates to a program for controlling an acoustic signal processing device.

2. Description of the Related Art Conventionally, for example, a digital mixer (hereinafter simply referred to as “mixer” is referred to as this digital mixer) is known as an acoustic signal processing device that performs signal processing on acoustic signals input from a plurality of channels. ing.
As such a mixer, for example, as described in Patent Document 1 and Patent Document 2, a plurality of signals input from its own internal bus are not only processed and mixed, but also from a previous stage (upstream side) mixer. There is also known a mixer capable of so-called cascade connection in which an output signal is mixed with a signal from an internal bus, and a signal of a processing result can be output to a downstream (downstream) mixer.
Japanese Patent No. 3221162 JP 2000-261391 A

In addition, in such a mixer capable of cascade connection, as described in Non-Patent Document 1, a parameter value used for controlling an additional function other than the control of an acoustic signal is linked. . As the parameters to be linked, for example, the page number of the screen to be displayed on the display unit, the number of scene data to be read (setting data set), and the like can be considered.
When the value of the linked parameter is changed in a mixer, the changed value is transmitted to other mixers cascaded with that mixer, and the changed value is also transmitted to the mixer that received the value. The same value as the value is set. This makes it possible to maintain the same parameter value for which a link is set for each mixer, and use each cascaded mixer as if it were a single large mixer as a whole. Can do.
“DIGITAL PRODUCTION CONSOLE DM2000 Instruction Manual”, Yamaha Corporation, 2001, p. 58-60

However, in the conventional mixer, when the cascade connection is performed, the last stage (the most downstream) mixer is set as the master device, and the link in the master device is set at the start of the link, that is, when the link setting is turned ON. The value of the parameter related to is transmitted to each device, and the value is set as the value of the parameter related to the link in each device, so that the parameter value is unified among the devices.
However, considering that it is possible to set link ON / OFF for each device or each parameter, if the link setting is turned OFF in the master device when the link setting is turned ON in a certain device. Since the parameter values are not necessarily unified with the values in the master device, the parameter values cannot be acquired from the master device and used. As a result, there is a problem in that the parameter values cannot be unified among the devices and the link does not function normally.

  The present invention solves such a problem and relates to the state of a master device when a parameter link is set in an acoustic signal processing device capable of connecting an acoustic signal processing device upstream and / or downstream. Rather, the object is to make it possible to unify the values of parameters relating to the link between the devices for which the corresponding link is set.

  In order to achieve the above object, the acoustic signal processing device of the present invention is connected with respect to parameters used for its own control in the acoustic signal processing device that can connect the acoustic signal processing device to the upstream side and / or the downstream side. Link setting means for setting a link to share a value with other acoustic signal processing devices, and when the above link is set, from the most downstream acoustic signal processing device in order toward the upstream side, Search means for searching for a device in which a link corresponding to the set link is set, and when the means finds a device in which the corresponding link is set, parameters related to the link from the found device Parameter value acquisition means for acquiring the value of the link, and a parameter for setting the value acquired by the means as a parameter value related to the link set by the link setting means It is provided with a and chromatography data setting means.

  In such an acoustic signal processing device, whether or not another acoustic signal processing device is connected to the upstream side when the search means cannot find a device in which the corresponding link is set on the downstream side. It is preferable to provide a transmission means for transmitting a parameter value related to the link set by the link setting means to the apparatus when it is determined that the means is connected.

  Moreover, the acoustic signal processing system of this invention is an acoustic signal processing system comprising a plurality of the acoustic signal processing devices connected so that the upstream side and the downstream side can be distinguished from each other. Is set to the most downstream side of the devices for which the corresponding link is set in all the acoustic signal processing devices for which the corresponding link is set. It is designed to be unified with the value in the device located.

  In addition, the program of the present invention provides a computer that controls an acoustic signal processing device capable of connecting an acoustic signal processing device upstream and / or downstream, with respect to parameters used for controlling the acoustic signal processing device. Link setting means for setting a link to share a value with other acoustic signal processing devices connected to the processing device, and when the link is set, the upstream side in order from the most downstream acoustic signal processing device When the search unit searches for a device in which a link corresponding to the set link is set, and the unit finds a device in which the corresponding link is set, from the found device Parameter value acquisition means for acquiring the parameter value related to the link, and the parameter related to the link set by the link setting means based on the value acquired by the means. Is a program for functioning as a parameter setting means for setting a value of over data.

According to the acoustic signal processing device or acoustic signal processing system of the present invention as described above, in the acoustic signal processing device capable of connecting the acoustic signal processing device to the upstream side and / or the downstream side, when a parameter link is set In addition, regardless of the state of the master device, it is possible to unify the parameter values related to the link between the devices for which the corresponding link is set.
Further, according to the program of the present invention, the computer can control the acoustic signal processing device to realize its characteristics and obtain the same effect.

Preferred embodiments of the present invention will be described below with reference to the drawings.
First, the configuration of a digital mixer which is an embodiment of an acoustic signal processing apparatus according to the present invention will be described. FIG. 1 is a block diagram showing the configuration of the digital mixer.
This digital mixer (hereinafter also simply referred to as “mixer”) is an acoustic signal processing apparatus that performs various signal processing such as mixing and equalizing on an input acoustic signal according to set parameters and outputs the processed acoustic signal. As shown in FIG. 1, a CPU 11, ROM 12, RAM 13, display circuit 14, detection circuit 15, signal processing circuit (DSP) 16, and cascade interface (I / F) 20 are connected to a system bus 21. A display unit 17, an operator 18, and an input / output I / F 19 are connected to the display circuit 14, the detection circuit 15, and the DSP 16, respectively.

The CPU 11 is a control unit that performs overall control of the operation of the entire mixer. By executing a predetermined control program stored in the ROM 12, the CPU 11 reads and writes data in the ROM 12 and RAM 13, and displays on the display unit 17 by the display circuit 14. The detection circuit 15 detects the operation of the operation element 18 and changes the parameter setting value associated therewith, the DSP 16 performs signal processing, the cascade I / F 20 controls communication with an external device, and the like.
The ROM 12 is a nonvolatile storage unit that stores a control program executed by the CPU 11.
The RAM 13 is a storage unit that stores temporarily necessary data such as mixer parameter setting values and a link table described later, and is used as a work memory of the CPU 11. Further, a part of the memory is a rewritable nonvolatile storage means such as an EEPROM, and a scene memory is provided to store the scene.

The display circuit 14 is a circuit that controls display on the display unit 17 based on control data sent from the CPU 11. The display unit 17 can be configured by, for example, a liquid crystal panel (LCD) or a light emitting diode (LED).
The detection circuit 15 is a circuit that detects an operation from the operation element 18 based on control by the CPU 11. The operation element 18 can be configured by various keys, buttons, sliders, rotary encoders, and the like, and the display unit 17 and the operation element 18 can be configured as an integrated operation panel.

The DSP 16 is a circuit that performs various signal processing such as mixing and equalizing according to setting values of various parameters on the acoustic signal input from the input / output I / F 19 and the cascade I / F 20. F19 is an interface for receiving an input of an acoustic signal to be processed by the DSP 16 and outputting the processed acoustic signal.
The cascade I / F 20 is an interface for exchanging data between the digital mixer and another cascade-connected mixer, and includes a cascade-in terminal for connecting to the upstream mixer, a downstream mixer, And a cascade-out terminal for connection.

  As shown in FIG. 2, this digital mixer can be configured as a mixer system by cascading a plurality of units from the upstream side to the downstream side by the cascade I / F 20. This connection is performed by connecting the cascade-out terminal of the upstream mixer and the cascade-in terminal of the downstream mixer with a cascade connection cable (which may be either dedicated or general-purpose). The plurality of mixers connected in this way constitute an embodiment of the acoustic signal processing system of the present invention.

In addition, when such a connection is made, one of a plurality of cascade-connected mixers is set as a master. The mixer set as the master (hereinafter also referred to as “master device”) is the most downstream mixer in the mixer system to which the mixer belongs. Therefore, there is only one master device in one mixer system, and the master device does not transmit control data to the mixer even when there is another mixer cascade-connected to the cascade-out terminal of the master device. (However, the acoustic signal is also transmitted from the master device to the mixer cascade-connected to the cascade-out terminal).
Furthermore, the master device also serves as a parameter reference in the mixer system. That is, when a link is set to a parameter as will be described later in the mixer system, the parameter value set in the master device becomes a reference value at the start of the link unless the link of the master device is off.

  Further, the mixer other than the master device is set to be a slave. Then, the master device recognizes other mixers connected in cascade and assigns an ID number to each mixer. Here, the mixers are assigned in ascending order from the closest to the master. Also, the master device periodically checks the system configuration during operation, and if a new device is connected to the system or an existing device is removed, the ID number is again assigned to each device at that time. I try to shake it again.

  As a method for setting the master, there are a method in which the user manually specifies a desired mixer and a method in which the mixer system automatically specifies the mixer. The latter method includes, for example, a method in which a device whose cable is connected only to the cascade-in terminal recognizes its own device as a master device, and can be used mainly at the initial setting of the mixer system. Conceivable. Even in cases other than the initial setting, even if the result of removing the downstream device is that the other device becomes the master or the newly connected device is located at the most downstream, The recognized device can recognize that it is the master and assign the ID number.

  In addition, such a cascade connection is basically assumed to be performed between mixers of the same model, but is not limited thereto. Each device needs to have a parameter that can set a link to be described later. If this condition is satisfied, for example, it may be possible to connect a recorder or a synthesizer. Further, the cascade-in terminal is not essential in the most upstream mixer, and the cascade-out terminal is not essential in the most downstream mixer. Of course, the number of connected devices is not limited to four.

FIG. 3 shows a state of signal exchange between devices connected in cascade.
As shown in this figure, between cascade-connected devices, acoustic signals (audio data) are transferred only from the upstream side to the downstream side, but control data for controlling and transmitting parameter values and device operating states Can be bidirectionally transferred between the upstream side and the downstream side. That is, the cascade-in terminal and the cascade-out terminal of the cascade I / F 20 do not necessarily perform only one of data input / output.
However, here, transfer is performed only between directly connected devices, and when a command is to be transferred to a remote device, the transfer is relayed to an intermediate device. That is, in FIG. 2, when a command requesting transmission of parameter values is transmitted from the mixer with ID = # 2 to the mixer with ID = # 0, the mixer with ID = # 1 relays the transfer of this command, The parameter values returned from the mixer with ID = # 0 are also relayed by the mixer with ID = # 1 and transferred to the mixer with ID = # 2.

  By the way, in the mixer system as shown in FIG. 2, it is possible to set a link for sharing values with other connected mixers for some of the parameters used by each mixer for device control. Parameters that can be set in this way include, for example, scene store / recall and DCA groups (groups for assigning channels (ch) and allowing the parameters of the assigned channels to be operated collectively). ON / OFF and level, and mute on / off in the MUTE group (a group for enabling mute settings for a plurality of channels). Moreover, the page number of the display screen displayed on the display part 17 is also considered.

Such a link can be set for each parameter and for each apparatus, and each mixer stores a link table as shown in FIG. 4, and a link setting state for each parameter in each cascade-connected mixer. To be able to grasp.
In the example shown in FIG. 4, for parameter 1, all mixers have links set (ON), but for parameter 2, ID = # 0 mixers have no links set (OFF). Has been. Here, a column such as “parameter 1” indicates a link setting unit. Although it is conceivable that a link can be set completely independently for each parameter, a link may be set for a group of a plurality of parameters at once.

  This link table is stored in all the cascade-connected mixers regardless of whether or not the link is set, and the contents are kept the same in each mixer. When the link setting is changed in any mixer, the contents of the link table of each mixer are updated accordingly. Also, when any mixer is disconnected or a new mixer is connected, the master device recreates the link table with the new ID and stores it in all the mixers. However, when the cascade connection is not made, it is not necessary to create a link table.

Here, FIG. 5 shows an example of a setting screen for setting such a link.
A cascade setting screen 100 shown in FIG. 5 is a screen displayed on the display screen of the display unit 17 in response to a predetermined operation by the user. The link setting unit 110 for setting parameter links and the cascade bus are turned on / off. And a cascade bus setting unit 120 for setting.
The link setting unit 110 includes link setting keys 111 to 113. By pressing these keys, it is possible to toggle on / off of the corresponding parameter link. In this case, the CPU of each mixer functions as a link setting means. The link setting key 111 is a key for setting a link for the page number of the display screen, the store of the scene, and the recall of the scene. The link setting key 112 is the level and on / off for each of the DCA groups 1 to 12. The link setting key 113 is a key for setting a link for on / off of mute for each of the MUTE groups 1 to 12.

Further, the cascade bus setting unit 120 is provided with a bus on / off setting key 121 corresponding to each of the 48 output channels provided in the mixer, and the signal of that channel is provided to the cascade out terminal for each output channel by each key. Whether to output or not can be set.
When cascade connection is not established, it is preferable to prevent the link from being set by, for example, displaying each key on the cascade setting screen 100 with half-brightness.

  Next, processing related to link setting and parameter value setting related to the link executed by the CPU 11 of each mixer in the mixer system shown in FIG. 2 will be described. The processing described below is executed in common regardless of whether the mixer is a master or a slave unless otherwise specified. The CPU 11 executes the program according to the embodiment of the present invention.

First, FIG. 6 shows a flowchart of processing when a link setting is instructed.
This process is performed for each link setting unit (for each column of the link table shown in FIG. 4). When a new link setting is instructed for a certain parameter on the cascade setting screen shown in FIG. The CPU 11 starts the process shown in the flowchart of FIG. Here, since the link can be set only when the mixer is cascade-connected, this processing is also executed only in that case. Also, each process shown in the following flowchart is executed only when there is a cascade-connected mixer except for the one shown in FIG.

In the process shown in FIG. 6, first, in step S1, the contents of the link table are changed according to the link setting operation. That is, in the link table, the parameter item for which the link for the own device is set is turned ON. In this process, the CPU 11 functions as a link setting unit.
In the next step S2, the control data for instructing the other mixers connected in cascade to make a change according to the link setting operation is transmitted to the link table in the same manner as the own device. If this control data is transmitted only to adjacent (directly connected) mixers, it is transmitted to all mixers by the process shown in FIG.

After that, if there is a cascade-connected mixer on the downstream side, the process proceeds from step S3 to S4, corresponding to the link for which the setting is instructed from the most downstream, that is, the master mixer in order from the upstream (same Find a mixer with a link (for parameters). This process can be performed by searching its own link table. In this process, the CPU 11 functions as a search means.
If there is such a mixer, the process proceeds from step S5 to S6, and control data for requesting transmission of the link value from the found mixer is transmitted to the downstream mixer. This control data can be transmitted directly if the target mixer is immediately downstream, but if it is not, it is relayed to a mixer on the way. The link value is a value that should be set in common for each mixer for which a link is set for a certain parameter.
Then, in step S7, the reception of the link value is waited. After the reception, in step S8, the received link value is set as the value of its own parameter, and the process is terminated. In these processes in steps S5 to S8, the CPU 11 functions as a parameter value acquisition unit and a parameter setting unit.

If there is no mixer on the downstream side in step S3, or if there is no mixer whose link is set on the downstream side in step S5, the process proceeds to step S9. In this case, if there is a cascade-connected mixer on the upstream side, the currently set value is set as the link value for the parameter for which the link is set in step S10, and the link value is set in the upstream side in step S11. To the mixer and finish the process. The link value is sequentially transferred to the most upstream mixer by processing to be described later. In the above processing, the CPU 11 functions as a transmission unit in steps S10 and S11.
Also, if there is no mixer on the upstream side in step S9, it can be seen that the mixer to which the link is set is only the own device, so there is no need to transmit the parameter value to other devices, so the processing is performed as it is. Exit. Note that the processing shown in the flowchart of FIG. 6 is executed when there is a cascade-connected mixer, and therefore, if NO in step S3, step S9 also does not become NO.

By performing the above processing, the link table of each mixer is updated in accordance with the link setting operation, and the value of the parameter for which the link is newly set is set to the master or the mixer closest to the master (the most downstream mixer). Can be unified with the value. Further, when the device itself corresponds to the mixer, the parameter values in the other mixers to which the corresponding link is set can be unified with the values in the own device.
Therefore, even if the link is not set in the master device, the parameter values in the appropriate device can be acquired and the values can be unified, and the link function can be appropriately operated. Further, since the values in the most downstream mixer are unified, it is possible to easily recognize in which apparatus the values are unified.

Next, FIG. 7 shows a flowchart of processing when a link cancellation is instructed.
Similar to the case of FIG. 6, this process is also performed for each link setting unit. When the link cancellation is instructed for a certain parameter on the cascade setting screen shown in FIG. 5, the CPU 11 performs the flowchart of FIG. The process shown in FIG.
In this process, first, in step S21, the contents of the link table are changed according to the link release operation. That is, in the link table, the parameter item for which the link for the own device is released is turned OFF.

After that, in step S22, control data for instructing other mixers connected in cascade to make a change corresponding to the link release operation is transmitted to the link table in the same manner as the own device, and the process is terminated. . Similar to the case of step S2 in FIG. 6, the control data need only be transmitted to the adjacent mixer.
By performing the above processing, the link table of each mixer can be updated according to the link release operation. Since it is not necessary to change the parameter value immediately after the link is released, this process does not include a process related to changing the parameter value.

Next, FIG. 8 shows a flowchart of processing when control data for requesting change of the link table is received. This process is started by the CPU 11 when the control data transmitted in step S2 in FIG. 6, step S22 in FIG. 7, or step S33 in FIG. 8 is received from another mixer. This process starts regardless of whether the link setting in the own device is ON or OFF.
In this process, first, the corresponding part of the link table is changed based on the control data received in step S31. This process includes a process of turning on the corresponding part and a process of turning off the corresponding part.

Thereafter, the process proceeds to step S32, where it is determined whether or not a mixer is connected to the side opposite to the side that received the control data (or upstream if received from the downstream side). The same control data as that received in step S31 is transmitted to the mixer, and the process ends. If not connected in step S32, the process is terminated as it is.
By performing the above processing, the contents of the link table can be changed according to the control data, and if necessary, the control data can be transferred. Therefore, by combining with the processing shown in FIG. 6 and FIG. The contents of the link table can be kept the same in all connected mixers.

Next, FIG. 9 shows a flowchart of processing when a parameter value change is instructed.
When the CPU 11 is instructed to change the value of the parameter by operating the operation element 18, the CPU 11 starts the process shown in the flowchart of FIG. This process is executed regardless of whether there are cascade-connected mixers and whether the link can be set to the parameter instructed to be changed.
In this process, first, in step S41, the parameter value of the own device is changed according to the instruction content. Thereafter, the process proceeds to step S42, and if there is a cascade-connected mixer, the process proceeds to step S43, where it is determined whether or not a link is set for the parameter relating to the setting instruction with reference to the link table. If a link cannot be set for a parameter related to the setting instruction, this determination is naturally NO.

If the link is set, the value of the parameter set in step S41 is set as the link value in step S44. Thereafter, if there is a cascade-connected mixer on the upstream side and / or downstream side in steps S45 to S48, the set link value is transmitted to the device on that side, and the process is terminated.
If there is no cascade-connected mixer in step S42 or if the parameter is not linked in step S43, it is not necessary to transmit the change of the parameter value to another mixer, and the process is terminated as it is.

Next, FIG. 10 shows a flowchart of processing when a link value is received from an upstream mixer. When the CPU 11 receives the link value transmitted by the upstream mixer in step S48 of FIG. 9 or step S54 of FIG. 10, the CPU 11 starts the processing shown in the flowchart of FIG.
First, in step S51, the link table is referred to and it is determined whether or not a link is set in the own apparatus for the parameter related to the received link value. If the link is set, the received link value is set as the value of the corresponding parameter in step S52, and the process proceeds to step S53. If not set in step S51, the process proceeds to step S53 as it is.
If there is a further cascade-connected mixer on the downstream side, the process proceeds from step S53 to step S54, the received link value is transmitted to the downstream mixer, and the process ends. If not connected, the process is terminated.

Next, FIG. 11 shows a flowchart of processing when a link value is received from a downstream mixer. When the CPU 11 receives the link value transmitted by the downstream mixer in step S46 of FIG. 9 or step S64 of FIG. 11, the CPU 11 starts the processing shown in the flowchart of FIG. The contents of the processing are almost the same as those in FIG. 10, except that when there is a mixer cascade-connected on the upstream side, the received link value is transmitted to the upstream mixer. Therefore, detailed description is omitted.
By executing the processes of FIG. 9 to FIG. 11, when the value of a parameter for which a link is set is changed in a certain mixer, the content is transmitted to all the cascade-connected mixers. For the mixer for which the corresponding link is set, the value of the corresponding parameter can be similarly changed. Therefore, the parameter values can be kept the same between the mixers to which the link is set.

Next, FIG. 12 shows a flowchart of a system configuration confirmation process performed by the master device.
The CPU 11 of the master device among the mixers constituting the mixer system shown in FIG. 2 periodically executes the processing shown in the flowchart of FIG.
Then, in step S71, the information of each cascade-connected mixer is acquired and compared with the stored system configuration, and in step S72, it is determined whether or not the configuration of the mixer system has changed.

If there is a change, the process proceeds to step S73 and subsequent steps, the ID is reassigned to each found mixer, the link table is corrected according to the new ID in step S74, and the link table is transmitted to each mixer in step S75. Then, the process is overwritten and stored. This transmission is performed by sequentially transferring to the upstream side as in the case of the control data and link value described above. If there is no change in step S72, the processing is terminated as it is.
By performing the above processing, when there is a change in the configuration of the mixer system, the information in the link table can be updated accordingly, and the link function can be appropriately operated.

The link table is corrected in step S74 by simply deleting the data related to the mixer and changing the ID of each device to a new one when the mixer is removed. In addition, when a new mixer is added, if it is possible to acquire information on the link setting status in that mixer, that information should be described. However, if this information cannot be acquired, the link OFF is set for all parameters for that mixer for the time being. It is good to describe the information. In this case, the added mixer executes the processing shown in FIG. 6 assuming that link setting is newly instructed for each parameter for which a link has been set in advance when the link table is stored. The link setting state can be restored.
In addition, when the newly added mixer becomes the master device, the newly added mixer first receives necessary information (including the link table) from another device when it is connected to the system. It is good to acquire and to perform a system configuration confirmation process as a master apparatus after that.

Although the description of the embodiment is finished as described above, the present invention is not limited to the above embodiment, and various modifications can be applied.
For example, when setting of a link is instructed, the parameter value may be acquired from an arbitrary device for which a corresponding link is set, instead of from the device at the most downstream side or the vicinity thereof. This is because the parameter values are the same between the devices to which the parameters are linked, and the same value can be obtained from any device. In this case, even if the device instructed to set the link is the most downstream device, the parameter value matches the value set in the device other than the own device.
Conversely, whenever a link setting is instructed, the parameter value of the own device may be transmitted as a link value to a device for which the corresponding link is set. Even in this way, it is possible to keep the parameter values uniform, and there may be a request to use the parameter values in the device newly added to the link.

Even in a device for which no link is set, the link value for each parameter is stored, and when the link is set, the stored link value is immediately set as the parameter value in the own device. You may do it. In this case, when the value of a parameter for which a link is set is changed in any device, the changed value is notified to all devices as a link value and stored. . On the other hand, when a link is newly set, there is no need to acquire a link value from another device.
In the above-described embodiment, an example in which the present invention is applied to a digital mixer has been described. However, the present invention is applicable to an acoustic signal processing device other than a digital mixer, including an electronic musical instrument such as a synthesizer, a sound source device, or a recorder. Is also applicable.

  Further, the above-described program of the present invention is stored in advance in the ROM 12 or the like of the digital mixer, and is also recorded and provided on a non-volatile recording medium (memory) such as a CD-ROM or a flexible disk. Can be read out from the RAM 13 of the digital mixer and executed by the CPU 11, or downloaded from an external device having a recording medium storing the program or an external device stored in a storage means such as an HDD and executed. Similar effects can be obtained.

  As is clear from the above description, according to the acoustic signal processing device, acoustic signal processing system, or program of the present invention, when a parameter link is set, the corresponding link is set regardless of the state of the master device. It is possible to unify parameter values related to the link among the devices that are connected. Therefore, if this invention is utilized, the acoustic signal processing apparatus which can set the link of a parameter flexibly can be provided.

It is a block diagram which shows schematic structure of the digital mixer which is embodiment of the acoustic signal processing apparatus of this invention. It is a figure which shows the structural example of the mixer system comprised by connecting the digital mixer in multiple cascades. It is a figure for demonstrating communication between the cascade-connected mixers. It is a figure which shows the example of the link table memorize | stored in each mixer which comprises the mixer system shown in FIG. It is a figure which similarly shows the example of the cascade setting screen for performing the setting relevant to cascade connection in each mixer. Similarly, it is a flowchart showing processing executed when each mixer is instructed to set a link. It is a flowchart which similarly shows the process performed when cancellation | release of a link is instruct | indicated. It is a flowchart which shows the process performed when the control data which similarly request | require the change of a link table is received. It is a flowchart which similarly shows the process performed when the change of the value of a parameter is instruct | indicated. It is a flowchart which similarly shows the process performed when a link value is received from the mixer of the upstream side. It is a flowchart which similarly shows the process performed when a link value is received from the mixer of the downstream side. It is a flowchart which shows the system configuration confirmation process which the master apparatus in the mixer system shown in FIG. 2 performs.

Explanation of symbols

11 ... CPU, 12 ... ROM, 13 ... RAM, 14 ... display circuit, 15 ... detection circuit, 16 ... signal processing circuit, 17 ... display unit, 18 ... operator, 19 ... input / output I / F, 20 ... cascade I / F, 21 ... System bus, 100 ... Cascade setting screen, 110 ... Link setting section, 111-113 ... Link setting key, 120 ... Cascade bus setting section, 121 ... Bus on / off setting key

Claims (4)

An acoustic signal processing device capable of connecting an acoustic signal processing device upstream and / or downstream,
Link setting means for setting a link to share a value with other connected acoustic signal processing devices for parameters used for own control,
When the link is set, search means for searching for a device in which a link corresponding to the set link is set in order from the most downstream acoustic signal processing device toward the upstream side;
Parameter value acquisition means for acquiring a value of a parameter related to the link from the discovered device when the means discovers a device in which the corresponding link is set;
An acoustic signal processing apparatus comprising: parameter setting means for setting a value acquired by the means as a parameter value related to a link set by the link setting means. The acoustic signal processing device according to claim 1,
In the case where the search unit cannot find a device in which the corresponding link is set on the downstream side, a unit is provided for determining whether another acoustic signal processing device is connected on the upstream side,
An acoustic signal processing apparatus comprising: a transmission unit configured to transmit a parameter value related to a link set by the link setting unit to the apparatus when it is determined that the unit is connected. An acoustic signal processing system comprising a plurality of acoustic signal processing devices according to claim 1 connected so that an upstream side and a downstream side can be distinguished,
When the link is set in any of the acoustic signal processing devices, the parameter value related to the link is set by the corresponding link in all the acoustic signal processing devices to which the corresponding link is set. An acoustic signal processing system characterized in that it is unified with a value in a device located on the most downstream side among the devices being used. A computer that controls an acoustic signal processing device capable of connecting the acoustic signal processing device upstream and / or downstream;
Link setting means for setting a link to share a value with other acoustic signal processing devices connected to the acoustic signal processing device, for parameters used for controlling the acoustic signal processing device;
When the link is set, search means for searching for a device in which a link corresponding to the set link is set in order from the most downstream acoustic signal processing device toward the upstream side;
Parameter value acquisition means for acquiring a value of a parameter related to the link from the discovered device when the means discovers a device in which the corresponding link is set;
A program for functioning as parameter setting means for setting a value acquired by the means as a parameter value related to a link set by the link setting means.

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