JP5201023B2 - Acoustic signal processing device, terminal device, and parameter reference method used for acoustic signal processing - Google Patents

Description

  The present invention relates to an acoustic signal processing device that processes an acoustic signal according to a value of a predetermined parameter, a terminal device for accessing such an acoustic signal processing device, and the acoustic signal processing device using the terminal device. The present invention relates to a method of referring to a parameter used for acoustic signal processing that refers to a value of a parameter used for acoustic signal processing.

Conventionally, a digital mixer (hereinafter simply referred to as “mixer”), which is an acoustic signal processing device, is connected to a personal computer (PC) via a network such as Ethernet (registered trademark), and the PC is used as a terminal device. By operating the editing screen displayed on this screen, it is possible to refer to and edit the values of parameters used for acoustic signal processing in the mixer.
Such remote operation of the mixer is described in Non-Patent Document 1, for example.

  In the case of the technique described in this document, when setting a parameter value by remotely operating a mixer using a PC, a predetermined remote operation application software is installed in the PC in advance, and the PC, mixer, Are connected via a network. Then, select the mixer whose parameters you want to edit on the PC side, make appropriate settings for the application, prepare an editing screen that matches the functions of the selected mixer, and synchronize all parameters with the mixer side. The parameters are edited in a procedure of calling a screen for editing a desired parameter from among a large number of prepared editing screens and performing an operation on the screen.

"M7CL Editor Instruction Manual", Yamaha Corporation, 2005

However, in the conventional remote operation as described above, it is necessary for the user operating the PC to manually select a mixer to be operated and further select an editing screen corresponding to a parameter to be edited.
On the other hand, there are various types of parameters that can be operated, and there are a large number of edit screens that can be selected accordingly. Furthermore, there may be a plurality of devices that can be operated in a large-scale usage environment.

For this reason, there is a problem that selection of an operation target device or selection of an edit screen takes time, and a selection error may occur due to a user's misunderstanding or operation mistake. This problem is particularly noticeable when editing parameters in consideration of an external device connected to the acoustic signal processing apparatus.
For example, when adjusting the level of an acoustic signal output to a specific speaker or the level of an acoustic signal input from a specific microphone, which speaker or which microphone is connected to which signal processing channel of which device The user has to select a screen for editing the parameters of the channel, and this operation demands high attention from the user.
These problems exist not only when editing parameters but also when simply referring to parameter values.

  The present invention solves such a problem, accesses a sound signal processing device using a terminal device, and tries to refer to or edit the value of a parameter used by the sound signal processing device for sound signal processing by the terminal device. The purpose of this is to enable easy and accurate operation. In particular, it is an object to make it easy to refer to or edit parameters related to an external device connected to an acoustic signal processing device directly or via another device.

  In order to achieve the above object, according to the present invention, in an acoustic signal processing device capable of communicating with a terminal device for accessing itself, an acoustic signal input from an external device is processed by a plurality of channels and output to the external device. An acoustic signal processing means, an external device connected to the acoustic signal processing device directly or via another device, a channel to which an acoustic signal input from the external device is supplied, or an acoustic signal output to the external device First storage means for storing a correspondence relationship with a channel for supplying the sound, and a display unit for displaying, for each of the channels, a parameter used by the acoustic signal processing means for acoustic signal processing in the channel. The second storage means for storing the screen data indicating the contents of the screen and the screen ID of the screen, and the correspondence relationship is stored in the first storage means. A screen for performing display regarding parameters used for acoustic signal processing in a channel corresponding to the external device that has received the selection by the selection receiving unit, and a selection receiving unit that receives the selection of one of the external devices Output means for outputting an identification code including the screen ID and address information of the acoustic signal processing device, screen data of the screen indicated by the screen ID when the screen ID is received from the terminal device, and display on the screen Transmitting means for transmitting the current value data of the parameter to be transmitted to the terminal device that is the transmission source of the screen ID.

  In such an acoustic signal processing device, the selection accepting means is a means for accepting selection of a plurality of external devices in addition to one external device among the external devices whose correspondence is stored in the first storage means. A display unit for displaying parameters used for acoustic signal processing in a plurality of channels respectively corresponding to the plurality of selected external devices when the selection receiving unit receives selection of the plurality of external devices. Is created, and a screen ID is assigned to the new editing screen, and screen data indicating the screen ID and the content of the new screen is stored in the second storage means. Means, and when the selection accepting unit accepts the selection of one external device, the selection accepting unit accepts the selection. Output a screen ID of a screen for performing display relating to a parameter used for acoustic signal processing in a channel corresponding to the unit device and an identification code including address information of the acoustic signal processing device, and the selection receiving means includes a plurality of external devices. When the selection of the device is accepted, it may be a means for outputting an identification code including the screen ID of the screen created by the screen data creation means and the address information of the acoustic signal processing device according to the selection.

  According to another aspect of the present invention, there is provided a terminal device for accessing any one of the above acoustic signal processing devices, a display device, a reading unit that optically reads the identification code output by the output unit, and the reading unit. The screen ID and the address information are extracted from the identification code read by the means, the transmission means for transmitting the extracted screen ID to the acoustic signal processing device indicated by the extracted address information, and according to the transmission of the screen ID Receiving means for receiving the screen data and the current values of the parameters transmitted by the acoustic signal processing device, and displaying the screen on the display unit based on the screen data received by the receiving means, and the receiving means for receiving The current value data is set as the current value of the parameter value to be displayed on the screen, and the sound signal processing apparatus It is provided with a display control means for displaying related parameters for use in signal processing.

Further, according to the method for referring to the parameter used for the acoustic signal processing of the present invention, the parameter used for the acoustic signal processing in the channel corresponding to the selected one external device is output to the acoustic signal processing device. Printing the identification code including the screen ID of the screen for performing display and the address information of the acoustic signal processing device, and pasting the printed identification code to the selected one external device, Screen ID according to the identification code read in advance for the external device scheduled to be used, causing the reading means of the terminal device to read the identification code affixed to the desired external device On the basis of the screen data and the current values of the parameters that the acoustic signal processing device transmits to the terminal device in response to the transmission. By referring to the screen serial terminal device displays, it is to refer to the value of the parameter for the acoustic signal processing in the channel corresponding to the desired external device.
Further, another parameter reference method used for acoustic signal processing according to the present invention is used for acoustic signal processing in a plurality of channels respectively corresponding to a plurality of selected external devices in the output means of the acoustic signal processing device. And printing out an identification code including a screen ID of a screen for displaying a parameter to be displayed and address information of the acoustic signal processing device, and the identification code thus printed out is an external device composed of the selected plurality of external devices. The step of pasting in the vicinity of the group is performed in advance on the external device group to be used, and the reading means of the terminal device reads the identification code pasted around the desired external device group, The transmission means transmits the screen ID according to the read identification code, and the acoustic signal processing device transmits to the terminal device in response to the transmission. By referring to the screen displayed by the terminal device based on the screen data and the current value of the parameter, the parameter value used for the acoustic signal processing in the channel corresponding to the desired external device group is referred to. is there.

  By using the acoustic signal processing device and the terminal device of the present invention in combination as described above, the acoustic signal processing device is accessed using the terminal device, and the acoustic signal processing device uses the acoustic signal processing device for the acoustic signal processing by the terminal device. When referring to or editing the value of a parameter, it is possible to perform an operation for it easily and accurately. In particular, it is possible to easily refer to or edit parameters related to an external device connected to the acoustic signal processing device directly or via another device.

It is a figure which shows the use condition of the terminal which is embodiment of the mixer which is embodiment of the acoustic signal processing apparatus of this invention, and the terminal device of this invention. It is a figure which shows the hardware constitutions of the mixer shown in FIG. It is a figure which similarly shows the hardware constitutions of a terminal. It is a figure which shows the example of the GUI screen similarly used in a mixer and a terminal. It is a figure for demonstrating the outline of operation | movement of the mixer and terminal in a 1st operation example.

It is another figure for demonstrating the outline of operation | movement similarly. It is another figure for demonstrating the outline of operation | movement similarly. It is a flowchart of the code symbol output process which CPU of a mixer performs in the 1st operation example. It is a flowchart of the screen ID transmission process which CPU of a terminal performs. It is a flowchart of the data transmission process for terminals which CPU of a mixer performs.

It is a flowchart of the screen display process which CPU of a terminal performs. It is a figure for demonstrating the outline of operation | movement of the mixer and terminal in a 2nd operation example. It is a figure which shows the example of an apparatus information table. It is a figure which shows the example of input patch data. It is a flowchart of the code symbol output process which CPU of a mixer performs in the 2nd operation example.

Hereinafter, embodiments for carrying out the present invention will be specifically described with reference to the drawings.
First, FIG. 1 shows a usage state of a mixer which is an embodiment of the acoustic signal processing apparatus of the present invention and a terminal which is an embodiment of the terminal apparatus of the present invention.

Here, the mixer 10 connects various external devices 50 such as a microphone, a speaker, an amplifier, a recorder, an equalizer, an effector, and a musical instrument, and among these external devices 50, an acoustic signal input from an acoustic signal supply source is connected. This is a device that processes in a plurality of input channels (ch), mixes the processing results, further processes the mixing results in an output channel, and outputs the processed acoustic signal to a predetermined output destination of the external device 50. .
The terminal 30 is a device that the user carries around and refers to the parameter value used by the mixer 10 for signal processing from a remote location, and edits the parameter value.

  As shown in FIG. 1, the mixer 10 (10a to 10c) and the terminal 30 (30a, 30b) are connected by a network N and used in a state where they can communicate with each other. For this network N, for example, an Ethernet (registered trademark) standard LAN (local area network) can be used, but the standard is not particularly limited. Although wired or wireless may be used, at least the terminal 30 is preferably wirelessly connectable from the viewpoint of portability.

As for the external device 50, an example in which all the external devices 50 are locally connected to the mixer 10 is shown here, but the external device 50 or another mixer 10 to which the mixer 10 is connected via the network N is shown. In some cases, an acoustic signal is input and output.
The printer 60 is a printing device for printing out code symbols to be described later according to instructions from the mixer 10. Although a state in which the network N is connected is shown here, the mixer 10 may be locally connected, or the mixer 10 may be provided with a printing function.

Next, FIG. 2 shows a hardware configuration of the mixer 10.
As shown in FIG. 2, the mixer 10 includes a CPU 11, a ROM 12, a RAM 13, a communication I / F 14, an operation detection circuit 15, a display control circuit 16, a waveform I / O 17, and a signal processing unit (DSP) 18. Connected by a bus 19. An operation element 21 is connected to the operation detection circuit 15, and a display 22 is connected to the display control circuit 16.

  The CPU 11 is a control means for controlling the operation of the mixer 10, and executes communication with other devices such as the terminal 30 via the communication I / F 14 by executing a required control program stored in the ROM 12. Various controls such as control of the control, detection of the operation content of the operation element 21 via the operation detection circuit 15, display control of the display 22 via the display control circuit 16, and control of signal processing in the DSP 18 can be performed.

The ROM 12 is a rewritable nonvolatile storage unit such as a flash memory that stores a control program executed by the CPU 11.
The RAM 13 is a storage means for storing data to be temporarily stored and used as a work memory for the CPU 11.
The communication I / F 14 is an interface for connecting to the network N.

  The operation detection circuit 15 is a circuit for detecting an operation on the operation element 21. The operation element 21 is for receiving an operation on the mixer 10, and can be constituted by various keys, buttons, dials, sliders, a touch panel stacked on a liquid crystal display (LCD) constituting the display 22, and the like. .

  The display control circuit 16 is a circuit for controlling display on the display 22 in accordance with an instruction from the CPU 11. The display 22 is configured by, for example, a liquid crystal display (LCD), a light emitting diode (LED), or the like, and is a display unit that displays various information such as a GUI (graphical user interface) and parameter values.

  The waveform I / O 17 is an interface for receiving an input of an acoustic signal to be processed by the DSP 18 and outputting the processed acoustic signal. The waveform I / O 17 is appropriately combined with an analog input terminal having an A / D conversion circuit, an analog output terminal having a D / A conversion circuit, a digital input terminal for digital input / output, and a digital output terminal. There are several.

  The DSP 18 includes a signal processing circuit, performs various signal processing such as mixing and equalizing on the acoustic signal input from the waveform I / O 17 in accordance with the current values of various parameters stored in the current memory, and performs the waveform I / O 17. Is a signal processing means for outputting to. It is conceivable that the storage area of the current memory is prepared in a memory provided in the RAM 13 or the DSP 18 itself.

Next, FIG. 3 shows a hardware configuration of the terminal 30.
As shown in FIG. 3, the terminal 30 includes a CPU 31, a ROM 32, a RAM 33, a communication I / F 34, an operation detection circuit 35, a display control circuit 36, and an image processing circuit 37, which are connected by a system bus 38. An operation element 41 is connected to the operation detection circuit 35, a display 42 is connected to the display control circuit 36, and a camera 43 is connected to the image processing circuit 37.

  The CPU 31 is a control means for controlling the operation of the terminal 30, and by executing a required control program stored in the ROM 32, communication with other devices such as the mixer 10 via the communication I / F 34 is performed. Various controls such as control, operation content detection of the operation element 41 via the operation detection circuit 35, display control of the display 42 via the display control circuit 36, image analysis and code symbol decoding control in the image processing circuit 37, etc. It can be performed.

The ROM 32 is a rewritable nonvolatile storage unit such as a flash memory that stores a control program executed by the CPU 31.
The RAM 33 is a storage means for storing data to be temporarily stored and used as a work memory for the CPU 31.
The communication I / F 34 is an interface for connecting to the network N.

  The operation detection circuit 35 is a circuit for detecting an operation on the operation element 41. The operation element 41 is for receiving an operation on the terminal 30 and mainly includes a touch panel laminated on an LCD integrated with the display 42. Several other keys and buttons are provided, but the number of operators is relatively small in order to reduce the size of the terminal 30 so that it can be easily carried.

  The display control circuit 36 is a circuit for controlling display on the display 42 in accordance with an instruction from the CPU 31. The display 42 is a display means for displaying various information such as a GUI (graphical user interface) and parameter values used by the mixer 10, and is configured by the LCD and several LEDs.

  The image processing circuit 37 is a circuit that processes image information obtained by photographing with the camera 43, and converts the image data into data that can be handled by the CPU 31 or data obtained by decoding code symbols in the image. The camera 43 is a photographing means for photographing an object and outputting the image information as an electrical signal by a sensor such as a CMOS image sensor, and a known device may be adopted as appropriate.

  The mixer 10 and the terminal 30 having the above-described configuration are characterized in that the user of the terminal 30 (and the mixer 10) displays desired information on the terminal 30 and uses the terminal 30 for desired parameters. This is an operation to enable editing. Therefore, hereinafter, an operation executed by the mixer 10 and the terminal 30 in order to realize information display and parameter editing by this operation will be described.

[First operation example: FIGS. 4 to 11]
First, as a first operation example, operations of the mixer 10 and the terminal 30 when a screen selected by the user is displayed on the terminal 30 will be described.
First, FIG. 4 shows an example of a GUI screen used in the mixer 10 and the terminal 30.

In the mixer 10, various GUI screens to be displayed on the display 22 are prepared as screens for receiving user operations. As an example, an input channel setting screen 100 is shown in FIG. 4. This screen includes eight ch strips 110, and is a screen for setting the parameters of the first to eighth input channels using the eight ch strips 110.
Each channel strip 110 is provided with a pan knob 111, a SEL switch 112, an ON switch 113, a fader 114, a level meter 115, and a channel number display unit 116.

However, in the mixer 10, these units are display units for displaying the corresponding pan, ch selection state, ch output on / off, fader parameter value, signal level being processed in the ch, and ch number. Yes, the parameter editing operation is performed by an operator corresponding to these display units provided on an operation panel (not shown).
Further, by touching the portion of the ch strip 110, it is possible to shift to a screen prepared for each ch for performing more detailed settings for the corresponding ch.

  The screen data indicating the contents of such a screen is stored in the ROM 12 of the mixer 10 together with the screen ID for specifying the screen. The “content” here includes a screen function. That is, for example, the screen data of the input channel setting screen 100 corresponds to a case where a fader on the operation panel is operated, which moves to a detailed setting screen for each channel with a predetermined screen ID when the channel strip 110 is touched. It also includes data defining the content of the operation to be performed according to the event detected during the screen display, such as changing the value of the channel fader parameter accordingly.

  In the mixer 10, a GUI screen for realizing a function equivalent to the mixer 10 side or a partially simplified function is displayed on the display 42 in the terminal 30 in correspondence with each GUI screen used in the mixer 10. Screen data is also prepared and stored in the ROM 12. The correspondence between the screens can be easily grasped by attaching the same screen ID.

  For example, in the mixer 10 of this embodiment, the same appearance screen as the mixer 10 side is prepared as a screen used on the terminal 30 side for the input channel setting screen 100 shown in FIG. However, the functions of the screens are not the same between the mixer 10 and the terminal 30 because the number and types of operators for performing operations on the screens are different.

On the terminal 30 side, only one rotary encoder that can be pressed is prepared as an operator for operating the input channel setting screen 100, and the pan knob 111, the SEL switch 112, the ON switch 113, and the fader 114 are provided. The switch is assigned to the rotary encoder in response to the touch operation, and an editing operation of the assigned parameter is accepted by the rotary encoder.
In addition, the transition to the screen prepared for each channel is accepted by touching the ch strip 110 twice.

  Since the mixer 10 and the terminal 30 usually have different display sizes, there is no particular problem even if the types of parameters to be displayed and the design of the screen differ accordingly. For example, the content displayed on one screen in the mixer 10 is displayed on a plurality of screens that can be switched by tabs, hyperlinks, or the like on the terminal 30.

Next, an outline of operations of the mixer 10 and the terminal 30 in this operation example will be described with reference to FIGS.
In this operation example, the mixer 10 receives a selection of a screen to be used at the terminal 30 among GUI screens used in the mixer 10 from the user. In response to the selection, as shown in FIG. 5, a code symbol 70 including information necessary for causing the terminal 30 to display a screen for the terminal 30 corresponding to the selected screen is displayed as an identification code. 22 is displayed. This “necessary information” is the screen ID of the screen to be displayed and the address on the network N of the mixer 10 having the screen.

  When the user of the terminal 30 captures the code symbol 70 by the camera 43 provided in the terminal 30, the terminal 30 decodes the code symbol 70 to obtain the screen ID and address, and the address (mixer displaying the code symbol 70). The screen ID is transmitted to the address 10).

  Upon receiving this screen ID, the mixer 10 returns to the terminal 30 terminal data including screen data and current values of parameters to be displayed and / or edited on the screen as data necessary for display of the screen with the screen ID. The terminal 30 causes the display 42 to display a GUI screen based on the terminal data.

  At this time, it can be grasped on the terminal 30 side that the GUI screen being displayed is a screen for displaying and editing parameter values in the mixer 10. Accordingly, there is also a communication destination for monitoring the change of the parameter value on the mixer side in order to match the display content with the latest setting content and for requesting the change of the parameter value according to the editing operation received on the terminal 30 side. The terminal 30 is automatically set.

  By performing the above operation, the user can simply display the desired screen for the desired mixer 10 on the terminal 30 by simply photographing the code symbol as the operation of the terminal 30, and the parameters used by the mixer 10 for signal processing. Can be referenced and edited. In this case, since the user does not need to manually select the mixer to be accessed or the screen to be displayed on the terminal 30 side, even if the small terminal 30 having excellent portability and few operators is used, the operation can be performed. No mistakes are made and the troublesome operation is greatly reduced. In particular, even if the access target is confusing, such as when the same model is lined up, it is possible to select the desired device without worrying about the address or name of each device, reducing errors and improving operability. Great effect.

  Although it is necessary to select a desired screen on the mixer 10 side, in general, the mixer 10 has a wide variety of controls for selecting a screen, so that it is much more efficient than performing a selection operation on the terminal 30 side. In addition, it is considered that an operation with few errors is possible.

  In addition, when the terminal 30 displays the GUI screen, it is possible to automatically synchronize the parameters with the mixer 10 within a necessary range (the current values of the parameters are changed between the mixer 10 side and the terminal 30 side). Therefore, an operation related to parameter synchronization is unnecessary, and the operability can be improved in this respect as well. Furthermore, since only the parameters handled on the screen displayed on the terminal 30 are synchronized, the synchronization process can be speeded up as compared with the case where all parameters are synchronized.

In the mixer 10, a plurality of screens can be simultaneously selected as screens to be displayed on the terminal 30.
FIG. 6 shows an operation example in this case.
Even in this case, the basic operation is the same as in FIG. 5, but the mixer 10 generates a new screen including all the display units included in the selected plurality of screens, assigns a screen ID, and the screen ID. Is displayed on the display 22.

Here, it is not only a portion that essentially displays only a value as in the level meter 115 but also an operator as a shape, such as the pan knob 111 and fader 114, on the terminal 30 side or on the mixer 10 side. However, even a portion used for accepting a parameter editing operation is included in the display unit as long as it is a portion used for displaying values.
In addition, since it is considered that all the display units included in a plurality of screens cannot normally be accommodated in one screen, the “new screen” to be generated is selected as shown in the display 42 in FIG. It is conceivable that a plurality of screens can be switched by tabs.

In the mixer 10, it is possible to select not only the entire screen but also a part of the controls on the screen as a target to be displayed on the terminal 30.
FIG. 7 shows an operation example in this case.
Even in this case, the basic operation is the same as in FIG. 5, but the mixer 10 generates a new screen including all the selected display units, assigns a screen ID, and the code symbol 72 including the screen ID. Is displayed on the display 22.

Here, the display unit can select any number from a plurality of screens. The unit of selection may be selectable for each individual display unit such as the pan knob 111 and the fader 114, or may be selected only for each group in which several display units are gathered such as the ch strip 110. You may be able to do it. Either selection may be made.
Further, when generating a new screen, the display units may be arranged on a blank screen in a predetermined order, such as the selection order of the display units and the screens to which the display units belong. And when it cannot arrange | position by one screen, it should just be set as the structure which can switch a some screen with a tab similarly to the example shown in FIG.

Next, processing executed by the CPU 11 of the mixer 10 and the CPU 31 of the terminal 30 to realize the operation described above will be described with reference to FIGS. 8 to 11.
First, FIG. 8 shows a flowchart of the code symbol output process executed by the CPU 11 of the mixer 10.
In the mixer 10, the display of code symbols as shown in FIGS. 5 to 7 is performed as a registration mode process different from the normal operation mode in which the parameters are edited by operating the operation element.

  When the user gives an instruction to enter the registration mode, the CPU 11 of the mixer 10 starts the processing shown in the flowchart of FIG. 8 and displays a screen to be displayed on the terminal 30 on a GUI (not shown) to be displayed on the display 22. Alternatively, selection of a display unit and an instruction to output a code symbol on the screen related to the selected target are accepted.

Then, in the process of FIG. 8, the CPU 11 stands by until there is an instruction to output a code symbol (S11).
At this time, when only one screen is selected as a target to be displayed on the terminal 30 (YES in both S12 and S13), it is selected because it is not necessary to create a new screen. A code symbol including information on the screen ID of the screen and the address (for example, IP address) of the mixer 10 itself is created (S14), this is output (S15), the process returns to step S11, and the process is repeated.

Further, when a plurality of screens are selected (YES in S12, NO in S13) or a display unit is selected (NO in S12, YES in S16), those selected objects are designated as terminals 30. A GUI screen for the terminal 30 to be displayed on the screen is created as described in the description of FIG. 6 and FIG. 7, a screen ID is assigned to the screen, and the screen ID and the screen data indicating the contents of the screen are stored in the ROM 12 or Save in the RAM 13 (S17). Then, a code symbol including information on the screen ID of the created screen and the address of the mixer 10 itself is created (S18), and this is output (S15), returning to step S11, and the process is repeated.
If NO in step S16, the display 22 displays that there is no target selection (S19), returns to step S11, and repeats the process.
This process is interrupted and terminated when there is an instruction to exit the registration mode.

Here, the bar code as shown in FIG. 5 or the like may be used as the code symbol, but various types such as a two-dimensional code including a QR code can be used. Since the code symbol only needs to be able to express the screen ID and address, a simple code with a relatively small amount of information can also be used.
In the case of the first operation example, the code symbol is preferably output on the display 22 so that the correspondence with the mixer 10 can be easily understood during shooting. However, the output method is not limited as long as it can be output in a state where it can be photographed by the camera 43 of the terminal 30, and print output using the printer 60 can be considered.

Through the above processing, the CPU 11 creates a new screen as necessary, and the screen ID of the screen to be displayed on the terminal 30 and the access destination information to be accessed by the terminal 30 in accordance with the reading of the code symbol. Can be output in a state that the terminal 30 can read them.
In the above processing, the CPU 11 functions as an output unit in step S15 and as a screen data creation unit in step S17.

Next, FIG. 9 shows a flowchart of a screen ID transmission process executed by the CPU 31 of the terminal 30.
When the CPU 31 of the terminal 30 instructs the user to set access to the mixer using the code symbol, the CPU 31 starts up the camera 43 and makes it possible to take an image, and the flowchart of FIG. The process shown in FIG.
First, image data of an image captured by the camera 43 is acquired (S31), the image data is analyzed, and a code symbol included in the image is decoded (S32). If the code symbol output by the mixer 10 in step S15 in FIG. 8 can be properly captured by the camera 43, the screen ID and the address of the mixer 10 should be obtained by this decoding.

If the decoding is not successful (NO in S33), the process returns to step S31 to repeat the process. If the decoding is successful (YES in S33), the screen ID and address information indicated by the code symbol is acquired. (S34).
Then, the acquired screen ID is transmitted to the device at the acquired address (which should be the mixer 10 that has output the code symbol) (S35), and the process is terminated.
With the above processing, the terminal 30 can request the screen data indicated by the code symbol to the mixer 10 that has output the code symbol. In this process, the CPU 31 functions as a transmission unit in step S35.

Next, FIG. 10 shows a flowchart of terminal data transmission processing executed by the CPU 11 of the mixer 10.
The CPU 11 of the mixer 10 starts the process shown in the flowchart of FIG. 10 when the terminal 30 receives the screen ID transmitted in step S35 of FIG. This process can be executed regardless of whether the mixer 10 is in the registration mode or the normal operation mode.

  In the process of FIG. 10, first, screen data of the terminal 30 screen corresponding to the received screen ID is acquired (S41), and the current value of the parameter to be displayed or edited on the screen is read from the current memory and acquired. (S42). Thereafter, the screen data and the current value are packaged to generate terminal data (S43), the terminal data is transmitted to the terminal 30 that is the screen ID transmission source (S44), and the process is terminated.

  Through the above processing, the mixer 10 transmits information necessary for displaying a screen to be displayed on the terminal 30 (a screen indicated by a code symbol photographed by the terminal 30) to the terminal 30 in response to access from the terminal 30. be able to. In this process, the CPU 11 functions as a transmission unit in steps S43 and S44. Note that the packaging in step S43 is not necessarily performed.

Next, FIG. 11 shows a flowchart of the screen display process executed by the CPU 31 of the terminal 30.
The CPU 31 of the terminal 30 starts the process shown in the flowchart of FIG. 11 when the mixer 10 receives the terminal data transmitted in step S44 of FIG.

  A screen is displayed on the display 42 based on the screen data included in the received terminal data (S51), and a current memory for storing the current values of parameters to be displayed or edited on the displayed screen is stored in the RAM 33. Secure (S52). Thereafter, the current value of the parameter included in the received terminal data is copied to the secured current memory (S53), and the screen display is updated based on the parameter value (S54). Then, a communication path necessary for real-time communication with the mixer 10 that has transmitted the terminal data (the screen ID transmission destination in step S35 in FIG. 9) is secured on the network N (S55), and the processing is terminated. To do.

  The terminal 30 displays the screen corresponding to the code symbol photographed in step S31 of FIG. 9 on the display 42 based on the data received from the mixer 10 by the above processing, and the mixer 10 Can be synchronized with the side. In the above processing, the CPU 31 functions as a display control unit.

Although illustration of specific processing is omitted, after the above processing, either the mixer 10 or the terminal 30 may actively access, but periodically communicate with each other to check the contents of the current memory. The current state of the latest current memory in the mixer 10 is always reflected in the display of the screen in the terminal 30.
Further, when there is an operation for instructing to change the parameter value at the terminal 30, the CPU 31 of the terminal 30 notifies the mixer 10 of the operation content or the amount of change in the parameter value related to the operation. Let the changes follow. Thus, the mixer 10 can be remotely operated from the terminal 30.

[Second operation example: FIGS. 12 to 15]
Next, as a second operation example, the operation of the mixer 10 and the terminal 30 when the terminal 30 displays a screen related to the ch parameter corresponding to the specific external device will be described.

FIG. 12 shows an outline of operations of the mixer 10 and the terminal 30 in this operation example.
In this operation example, the mixer 10 accepts a selection of an external device 50 (for example, a microphone or a speaker) connected to the mixer 10 from the user, and in response to the selection, the terminal 30 receives the ch parameter corresponding to the device. A code symbol 73 including information necessary for displaying a screen related to the above is instructed to the printer 60 to be printed out. This “necessary information” is the screen ID of the screen to be displayed and the address on the network N of the mixer 10 having the screen, as in the case of the first operation example. Then, the user attaches the code symbol 73 to the selected external device 50 so that the correspondence relationship with the device can be understood.

  When the user who operates the terminal 30 wants to display a screen related to the parameters of the channel corresponding to the specific external device 50, the code symbol 73 attached to the external device 50 is displayed by the camera 43 provided in the terminal 30. Take a picture. Then, the terminal 30 decodes this, acquires the screen ID and address, and transmits the screen ID to the address (the mixer 10 having the screen to be displayed and outputting the code symbol 73).

  Thereafter, when the mixer 10 and the terminal 30 perform the same operation as in the first operation example, the user can simply photograph the code symbol affixed to the desired external device 50 as the operation of the terminal 30. By simply doing this, a screen relating to the parameters of the channel corresponding to the external device 50 can be displayed on the terminal 30, and the parameters used by the mixer 10 for the signal processing of that channel can be referred to and edited.

  Even in this case, since there is no need for the user to manually select the mixer to be accessed and the screen to be displayed on the terminal 30 side, an operation error does not occur and the troublesomeness of the operation is greatly reduced. In particular, when the external device 50 is arranged in a hall or a stage, in that state, it is difficult to understand the correspondence between the external device 50 and the ch of the mixer 10, but by using the above function, the user can deal with the correspondence. Even if the relationship is not grasped, the screen related to the channel corresponding to the external device 50 can be easily displayed, so that the effect of reducing errors and improving operability is great.

Here, a channel corresponding to a certain external device refers to an input channel to which an acoustic signal input from the external device is supplied or an output channel to supply an acoustic signal output to the external device. At this time, the external device may be directly connected to the mixer 10 or indirectly connected via another device such as an amplifier, an equalizer, or an effector.
The mixer 10 stores in advance information on the correspondence between such external devices and channels.

FIG. 13 shows an example of a device information table in which the information is registered.
In the device information table, first, the name of the external device 50 and information on the terminal or port to which the external device 50 is connected are registered.
When the external device 50 is connected to an input / output terminal of the mixer 10 by a cable (a wireless part may be provided in the middle), it is not possible to know what device is connected to which terminal on the mixer 10 side. Therefore, this registration is performed manually by the user. Further, when the mixer 10 is actually used, it is necessary to connect an external device as registered. When a speaker is connected to the mixer 10 via an amplifier, the amplifier may be registered as an external device or the speaker may be registered.

  When the external device 50 is connected to the mixer 10 via the network N, the mixer 10 may automatically determine a port used for transmitting / receiving an acoustic signal to / from the external device 50. The name of the destination device may be automatically acquired. Therefore, in such a case, the mixer 10 may register the device name and the connection destination port automatically.

In either case, the input / output item indicating whether the external device 50 is connected to the input terminal / port or the output terminal / port is automatically set according to the setting contents of the connection destination terminal / port. can do.
In addition, for the acoustic signals input from each terminal or port, the input channel of the supply destination is determined by the input patch. Therefore, the used channel item in the device information table can be automatically set by referring to the setting content of the input patch based on the connection destination terminal / port.

FIG. 14 shows an example of input patch data indicating the setting contents of the input patch. As the input patch data, which of the signals input from all the terminals and ports that the mixer 10 can accept signal input is shown. Whether to supply to the input channel is set.
Similarly to the above, the correspondence between the external device connected to the output terminal / port and the output channel can be automatically set according to the setting contents of the output patch.

  The setting contents of the patch can be changed according to the user's operation. If there is a change, the contents of the device information table are updated accordingly. However, if this change is made, the correspondence between the external device and ch will change, and therefore, after the code symbol 73 has been printed and attached to the external device, the patch setting should not be changed. Is preferred.

The screen related to the channel corresponding to the selected external device 50 determined based on the above correspondence relationship displays and / or refers to the parameters used by the DSP 18 of the mixer 10 for signal processing of the channel. It is a screen for.
In the mixer 10 of this embodiment, as described in the description of FIG. 4, for each channel, a screen for handling parameters related to the channel is individually prepared. Since it is sufficient to use the screen as it is, it is not necessary to create a new screen according to the selection of the external device 50.

  However, when only a screen for handling parameters related to a plurality of channels as shown in FIG. 4 is prepared, a display unit for handling parameters related to the channel corresponding to the selected external device 50 is displayed from this screen. Cut out and create a new screen. At this time, as in the case of the first operation example, a new screen ID is assigned to the created screen.

  In addition, the mixer 10 can accept selection of not only one external device but also a plurality of external devices. When a plurality of external devices are selected, a new screen including all display units that handle parameters related to a plurality of channels respectively corresponding to the selected external devices is generated. In this case, even if a plurality of screens for handling parameters for one channel can be switched with tabs as in the case of FIG. 6, a simplified display unit such as a ch strip as in the case of FIG. May be arranged side by side for a plurality of channels.

In any case, in this case, what the mixer 10 prints out is a code symbol corresponding to an external device group composed of a plurality of external devices. Therefore, this code symbol is preferably affixed in the vicinity of the external device group, not the external device itself.
Such code symbols are used when, for example, you want to change settings for microphones and speakers placed on the stage at once, and when you want to paste the code symbols corresponding to those devices on the stage. It is valid. Or, the code symbol corresponding to the group of external devices grouped for each placement position can be affixed to a mount such as a map of the hall and carried around, so that settings related to the device at the desired position can be changed from anywhere. It is done.

Next, processing executed by the CPU 11 of the mixer 10 and the CPU 31 of the terminal 30 to realize the operation described above will be described with reference to FIG.
FIG. 15 is a flowchart of the code symbol output process executed by the CPU 11 of the mixer 10 in this operation example.

  As in the case of the first operation example, when the user instructs the mixer 10 to enter the registration mode, the CPU 11 of the mixer 10 starts the processing shown in the flowchart of FIG. The selection of one or a plurality of external devices is received from the external devices registered in the device information table shown in FIG.

Then, in the process of FIG. 15, the CPU 11 waits until there is an instruction to output a code symbol (S61). This instruction is different from the instruction monitored in step S11 in FIG.
If one external device is selected at this time (YES in both S62 and S63), it is not necessary to create a new screen, so the selected external device is referred to the device information table. A screen for displaying / editing the parameters of the corresponding channel is specified (S64), and a code symbol including information on the screen ID of the screen and the address (for example, IP address) of the mixer 10 itself is created (S65). This is output (S66), the process returns to step S61, and the process is repeated.

  If a plurality of devices are selected (YES in S62, NO in S63), the device information table is referred to and all the channels corresponding to the selected external device are specified (S67). Then, a terminal 30 GUI screen for displaying on the terminal 30 with a display unit for displaying / editing the parameters of all the specified channels is created as described in the description of FIG. The screen ID is assigned to the screen ID, and the screen ID and the screen data indicating the contents of the screen are stored in the ROM 12 or RAM 13 (S68). Then, a code symbol including information on the screen ID of the created screen and the address of the mixer 10 itself is created (S69), and this is output (S66), returning to step S61, and the process is repeated.

If NO in step S62, the display 22 displays that there is no target selection (S70), returns to step S61, and repeats the process.
This process is interrupted and terminated when there is an instruction to exit the registration mode.
The code symbol format is the same as in the first operation example. In addition, although an example of printing output has been described with reference to FIG. 12, it is also possible to output a code symbol on the screen and shoot on the spot as in the first operation example.

Through the above processing, the CPU 11 creates a new screen as necessary, and then the screen ID of the screen regarding the parameters of the channel corresponding to the selected external device 50 and the terminal 30 according to the reading of the code symbol. A code symbol including information on an access destination to be accessed can be output in a state that the terminal 30 can read the code symbol.
In the above processing, the CPU 11 functions as an output unit in step S66 and as a screen data creation unit in step S68.
Also in this operation example, the processing after the code symbol is photographed using the camera 43 of the terminal 30 is the same as the processing described in the first operation example with reference to FIGS.

  This is the end of the description of the embodiment, but it goes without saying that the configuration of the apparatus, specific processing contents, screen display examples, operation methods, data formats, and the like are not limited to those described in the above embodiment. .

For example, in the above-described embodiment, the example in which the terminal 30 captures the code symbol with the camera has been described. However, in the case of a barcode, a reader that scans the code symbol with a laser beam instead of the camera may be used. . In any case, an optical reading means suitable for the type of code symbol may be used.
A known portable PC or personal digital assistant (PDA) may be used as the hardware of the terminal 30. When these PCs and PDAs are not equipped with reading means, external reading means that can be connected to them can be used.

In the above-described embodiment, the mixer 10 has been described as an example. However, the present invention can be applied to other acoustic signal processing devices such as effectors, recorders, and amplifiers, and terminal devices that access the acoustic signal processing device. Of course.
In addition, the configurations and modifications described above can be applied in appropriate combinations within a consistent range.

As is clear from the above description, by using the acoustic signal processing device and the terminal device of the present invention in combination, the acoustic signal processing device is accessed using the terminal device, and the acoustic signal processing device is acoustically controlled by the terminal device. When referring to or editing the value of a parameter used for signal processing, an operation for that can be performed easily and accurately. In particular, it is possible to easily refer to or edit parameters related to an external device connected to the acoustic signal processing device directly or via another device.
Therefore, the operability of the acoustic signal processing device can be improved by applying the present invention.

DESCRIPTION OF SYMBOLS 10 ... Mixer, 11, 31 ... CPU, 12, 32 ... ROM, 13, 33 ... RAM, 14, 34 ... Communication I / F, 15, 35 ... Operation detection circuit, 16, 36 ... Display control circuit, 17 ... Waveform I / O, 18 ... DSP, 19, 38 ... system bus, 21, 41 ... operator, 22, 42 ... display, 30 ... terminal, 37 ... image processing circuit, 43 ... camera, 50 ... external device, 60 ... Printer, 70-73 ... code symbol

Claims (5)

An acoustic signal processing device capable of communicating with a terminal device for accessing the acoustic signal processing device,
An acoustic signal processing means for processing an acoustic signal input from an external device in a plurality of channels and outputting the processed signal to the external device;
An external device connected to the acoustic signal processing device directly or via another device, and a channel to which an acoustic signal input from the external device is supplied or a channel to supply an acoustic signal output to the external device First storage means for storing a correspondence relationship;
For each channel, the sound signal processing means stores screen data indicating the contents of a screen provided with a display unit for displaying a parameter used for sound signal processing in the channel, and a screen ID of the screen. Two storage means;
Selection accepting means for accepting selection of one of the external devices whose correspondence is stored in the first storage means;
Outputs an identification code including a screen ID for displaying a parameter used for acoustic signal processing in a channel corresponding to an external device that has received selection by the selection accepting unit, and address information of the acoustic signal processing device. Output means;
When the screen ID is received from the terminal device, the screen data of the screen indicated by the screen ID and the data of the current value of the parameter displayed on the screen are transmitted to the terminal device that is the transmission source of the screen ID. And an acoustic signal processing apparatus. The acoustic signal processing device according to claim 1,
The selection accepting means is a means for accepting selection of a plurality of external devices in addition to one external device among the external devices whose correspondence is stored in the first storage means;
A display unit for displaying a parameter used for acoustic signal processing in a plurality of channels respectively corresponding to the plurality of selected external devices when the selection receiving unit receives the selection of the plurality of external devices; Screen data creating means for creating a new screen data, assigning a screen ID to the new editing screen, and storing screen data indicating the screen ID and the contents of the new screen in the second storage means Have
When the output accepting unit accepts the selection of one external device by the selection accepting unit, the output unit displays a display relating to the parameters used for the acoustic signal processing in the channel corresponding to the external device accepting the selection by the selection accepting unit. When an identification code including the screen ID of the screen to be performed and the address information of the acoustic signal processing device is output, and the selection accepting unit accepts the selection of a plurality of external devices, the screen data according to the selection An acoustic signal processing apparatus, characterized in that it is means for outputting an identification code including a screen ID of the screen created by the creating means and address information of the acoustic signal processing apparatus. A terminal device for accessing the acoustic signal processing device according to claim 1,
An indicator,
Reading means for optically reading the identification code output by the output means;
Transmitting means for extracting the screen ID and address information from the identification code read by the reading means, and transmitting the extracted screen ID to the acoustic signal processing device indicated by the extracted address information;
Receiving means for receiving the screen data and the current values of the parameters transmitted by the acoustic signal processing device in response to the transmission of the screen ID;
A screen is displayed on the display unit based on the screen data received by the receiving means, and the current value data received by the receiving means is set as the current value of the parameter value displayed on the screen, and the screen And a display control means for performing display relating to a parameter used by the acoustic signal processing device for acoustic signal processing. A screen ID of a screen for performing display relating to a parameter used for acoustic signal processing in a channel corresponding to the selected external device on the output means of the acoustic signal processing device according to claim 1 or 2, and the acoustic signal A process of printing out an identification code including address information of the processing device and pasting the printed identification code to the selected one external device is performed in advance on the external device to be used,
The reading means of the terminal device according to claim 3 reads the identification code affixed to a desired external device,
Send the screen ID according to the read identification code to the transmission means of the terminal device,
In response to the transmission, by referring to the screen displayed by the terminal device based on the screen data transmitted to the terminal device by the acoustic signal processing device and the current value of the parameter, the channel corresponding to the desired external device is used. A method for referring to a parameter used for acoustic signal processing, wherein the parameter value used for acoustic signal processing is referred to. A screen ID of a screen for performing display relating to parameters used for acoustic signal processing in a plurality of channels respectively corresponding to a plurality of selected external devices and the sound on the output means of the acoustic signal processing device according to claim 2 A step of printing out an identification code including address information of the signal processing device, and pasting the printed identification code in the vicinity of the selected external device group of the plurality of external devices; About in advance,
The reading means of the terminal device according to claim 3 reads an identification code affixed around a desired external device group,
Send the screen ID according to the read identification code to the transmission means of the terminal device,
The channel corresponding to the desired external device group by referring to the screen displayed by the terminal device based on the screen data transmitted by the acoustic signal processing device to the terminal device in response to the transmission and the current value of the parameter. A method for referring to a parameter used for acoustic signal processing, which refers to a value of a parameter used for acoustic signal processing in the system.

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