JP5071290B2 - Electronic acoustic system - Google Patents

Description

  The present invention relates to an electronic acoustic system capable of changing parameters when processing acoustic signals from a plurality of acoustic input devices based on the parameters.

Conventionally, the volume level and frequency characteristics of acoustic signals output from a large number of microphones or acoustic input devices such as electric and electronic musical instruments are adjusted and mixed, and the acoustic characteristics such as volume, pan, and effect are controlled and used as a power amplifier. 2. Description of the Related Art An acoustic signal processing device called a mixer device (hereinafter referred to as “mixer device”) used in a concert hall to be sent out is known. The operator who operates the mixer apparatus operates the operation elements (faders and knobs) corresponding to the respective acoustic characteristics of the acoustic signals from the acoustic input devices such as electric guitars, drums, and vocals. , And adjusted to the state that seems to represent the most appropriate performance. In this case, in general, the operators of each series are arranged in an orderly manner, and which operator corresponds to the acoustic input device of which series (for example, which operator is for vocals and which is drums) It is difficult to intuitively associate and adjust the acoustic characteristics of the acoustic signals from each acoustic input device.
Therefore, for the purpose of solving the above inconvenience, a display means having a flat shape with a transparent or semi-transparent touch operator is erected on the panel of the mixer device, and a player (acoustic sound) that is visible through the display means. Conventionally, there has been proposed a mixer apparatus in which an operation element is displayed on the display means so as to overlap the input device.
JP 2006-203303 A

However, the conventionally proposed mixer device requires advanced processing such as detecting the position of the head of the operator who operates the mixer device and estimating which player (sound input device) the operator is looking at. Therefore, there is a need for a high-performance processing device, and in some cases, there is a risk of estimating a wrong player instead of a player who wants to operate the acoustic characteristics. Furthermore, since the operation element is displayed in correspondence with the position of each player on the flat display means, there is a problem in that the operation element cannot be arranged at a position desired by the operator.
Therefore, an object of the present invention is to provide an electronic acoustic system that can control parameters of a plurality of acoustic input devices in an intuitive manner in association with operating means.

  In order to achieve the above object, the electronic acoustic system of the present invention detects the position of each of a plurality of sound input devices, and places each of the sound input devices at a position on the operation table corresponding to the detected position. The most important feature is that the corresponding object is set.

  According to the present invention, the arrangement position of each of the plurality of sound input devices is detected, and the object corresponding to each of the sound input devices is set at the position on the operation table corresponding to the detected position. Thus, it becomes possible to intuitively associate and control objects corresponding to the respective sound input devices. Thereby, when gathering on Sunday and performing a band, it can be suitable when the amateur who operates the electronic acoustic system only occasionally mixes.

FIG. 1 is a block diagram showing a block configuration of an electroacoustic system 1 according to the first embodiment of the present invention. The electronic acoustic system 1 according to the present invention receives an acoustic signal from a musical instrument played by a performer on the stage, an acoustic signal from a microphone that picks up the singing sound of the performer on the stage, and the like. Acoustic signal processing is performed and mixed and output to a speaker or the like.
The electronic acoustic system 1 of the first embodiment shown in FIG. 1 includes a CPU (Central Processing Unit) 10 that controls the overall operation of the electronic acoustic system 1 by executing a management program (OS), and a CPU 10 A nonvolatile ROM (Read Only Member) 11 in which operation software such as a mixing control program to be executed is stored, and a RAM (Random Access Memory) 12 in which a work area of the CPU 10 and various data are stored are provided. The CPU 10 performs a mixing process by executing a mixing control program to perform an acoustic signal process on a plurality of input acoustic signals. Note that by making the ROM 11 a rewritable ROM such as a flash memory, the operation software can be rewritten, and the version of the operation software can be easily upgraded. In addition, a timer 13 is provided that generates an interrupt to the CPU 10 at regular intervals. The external storage device 14 is a hard disk (HD), FD (flexible disk or floppy disk (trademark), CD (compact disk) -ROM, MO (Magneto-Optical disk), DVD (digital multipurpose disk), flash memory or semiconductor. It consists of a storage medium such as a memory and its driving device, and stores a management program (OS), operation software, and various data.In this case, the storage medium may be detachable or may be attached to the electronic acoustic system 1. The communication I / F 15 is a communication interface (I / F) such as Ethernet (trademark) for transferring data to and from an external device, and is a communication network such as the Internet. 16 to connect to the server device 17 via 16 and download various data, programs, etc. The MIDI I / F 18 is a MIDI interface for connecting to a MIDI (Musical Instrument Digital Interface) device 19 and can be connected to a synthesizer or a sound source having a MIDI interface.

  The LED display circuit 20 is a display circuit that drives and displays an LED (Light Emitting Diode) display 21 provided on an adjustment console of the electroacoustic system 1, and the setting operation detection circuit 22 The operation of the setting operator 23 is detected by scanning a setting operator 23 of a fader or knob provided on an adjustment console or the like of the system 1. Based on the detected operation signal, the value of the parameter used for the acoustic signal processing is changed. The touch panel 24 constitutes an operation table capable of controlling parameter values used for acoustic signal processing. The display is displayed by the display display circuit 25 and a matrix in which the position touched by the touch detection circuit 26 is detected.・ Equipped with switches. On the display of the touch panel 24, a graphic representing an object representing each acoustic input device 30 is displayed on the display corresponding to the position where a plurality of acoustic input devices 30 such as musical instruments and microphones are actually arranged. Each is displayed by the circuit 25. As a result, the actual arrangement position of the acoustic input device 30 corresponding to the display position of each displayed graphic is simulated, and each graphic and each acoustic input device 30 can be intuitively associated with each other. As a result, it is possible to immediately specify the graphic corresponding to the acoustic input device 30 whose parameter is to be changed, and by operating the specified graphic on the touch panel 24, the parameter of the acoustic input device 30 whose parameter is to be changed is determined. Can be manipulated. In this way, by operating the object displayed on the touch panel 24 on the touch panel 24, the parameters such as the level and pan of the musical instrument or microphone that is the acoustic input device 30 corresponding to the object are controlled. Can do.

  The mesh type sensor group 27 is installed under the floor of a stage on which a plurality of acoustic input devices 30 such as musical instruments and microphones are arranged. An IC tag such as RFID 31 is embedded in each of the acoustic input devices 30 such as a musical instrument and a microphone on the stage, and the mesh type sensor group 27 is a sensor that reads a device-specific ID unique to the device embedded from the RFID 31. It is a group. The entity position detection circuit 28 detects the position of each acoustic input device 30 from the information of the device unique ID read by the mesh type sensor group 27. The plurality of sensors constituting the mesh type sensor group 27 read the device unique ID from the RFID 31 using radio waves, but only the RFID 31 located in the vicinity of the sensor can be read. The entity position detection circuit 28 detects the position of each acoustic input device 30 based on the position of the sensor that has read the device unique ID, and based on the detected information on each position of the plurality of acoustic input devices 30, The CPU 10 calculates the display position of the graphic corresponding to each acoustic input device 30 displayed on the touch panel 24 and drives the display display circuit 25. As a result, a graphic representing each acoustic input device 30 is displayed on the touch panel 24 corresponding to the position of each acoustic input device 30 on the stage.

In addition, acoustic signals output from a plurality of acoustic input devices 30 such as microphones, electric guitars, and electronic keyboards on the stage are sent to separate input channels of the input signal I / F 40 in the mixing engine unit 29 arranged outside the stage. Each acoustic signal is inputted and converted into a digital signal and supplied to the digital signal processing circuit 42. The digital signal processing circuit 42 adjusts and mixes the volume level and frequency characteristics of the input acoustic signal based on the parameters, and controls the acoustic characteristics such as volume, pan, and effect based on the parameters. Signal Processor). In addition, an output signal I / F 41 is provided that outputs the mixed acoustic signal output from the digital signal processing circuit 42 to a plurality of acoustic output devices 32 such as a main speaker directed to the passenger seat via an amplifier. Each unit exchanges data and the like via the bus 33.
In the electronic acoustic system 1 configured as described above, when the user performs a predetermined operation on the graphic representing the acoustic input device 30 displayed on the operation table including the touch panel 24, the electronic acoustic system 1 performs an operation on the graphic. A parameter for controlling the acoustic characteristics of the channel assigned to the acoustic input device 30 corresponding to the graphic is detected and detected according to the operation. The mixing engine unit 29 performs acoustic signal processing such as mixing level and localization based on the changed parameter value, and the changed parameter value is displayed in the vicinity of the figure on the touch panel 24.

Next, FIG. 2 shows a schematic configuration of a mode in which parameters are changed in the electronic acoustic system 1 according to the first embodiment of the present invention.
In FIG. 2, on the stage 50, a player who sings using the microphone A, a player who plays the musical instrument A, and a player who sings using the microphone B are standing at predetermined positions. A tag 1 such as an RFID 31 is embedded in the microphone A. Similarly, a tag 2 is embedded in the musical instrument A, and a tag 3 is embedded in the microphone B. Acoustic signals from the microphones A and B and the musical instrument A are input to channels assigned to the mixing engine unit 29. Under the control of the control unit 51, the mixing engine unit 29 adjusts and mixes the volume level and frequency characteristics based on the parameters of each channel, and gives the acoustic characteristics such as volume, pan, and effect, so that the stage 50 Singing sound and performance sound are output toward the passenger seat from the main speaker L32a and the main speaker R32b provided on the side. The control unit 51 includes a CPU 10, a ROM 11, a RAM 12, and the like.

  A mesh type sensor group 27 including a large number of sensors arranged in a matrix is installed under the floor of the stage 50, and signals sensed by each sensor are input to the actual position detection circuit 28. Each sensor constituting the mesh type sensor group 27 detects the tags 1 to 3 using an electromagnetic induction method or a radio wave method. In this case, the tags 1 to 3 provided in the microphones A and B and the musical instrument A obtain power and operate the built-in circuit by the magnetic field fluctuation or radio wave emitted from each sensor, and transmit the information of the device unique ID. . The device unique ID information transmitted from the tags 1 to 3 can be received only by the sensors arranged in the vicinity of the tags 1 to 3, and the information signal of the device unique ID is actually received from the received sensor. It is sent to the position detection circuit 28. The entity position detection circuit 28 detects the device unique ID from the input information signal, and when a specific device unique ID is detected from the information signal sent from only one sensor, the actual position detection circuit 28 detects the device unique ID. It is detected that the microphones A and 2 or the musical instrument A corresponding to the device unique ID is arranged. In addition, when the same device unique ID is detected from information signals sent from two or more sensors, a microphone corresponding to the device unique ID is positioned between the sensors according to the intensity ratio of the reception level. It is detected that A, B or musical instrument A is arranged. Note that the device-specific IDs of the tags 1 to 3 are associated with the microphones A and B and the musical instrument A in the initial setting, and the acoustic input device 30 that is the microphones A and B and the musical instrument A, The channels of the mixing engine unit 29 assigned to the sound input devices 30 are associated in advance.

  The position information of the microphones A and B and the musical instrument A detected by the entity position detection circuit 28 is sent to the control unit 51, and the control unit 51 places the CH1 object corresponding to the microphone A at the position on the touch panel 24 corresponding to the position information. The display display circuit 25 is driven so as to display the figure of CH2, the figure of the CH2 object corresponding to the musical instrument A, and the figure of the CH3 object corresponding to the microphone B. The touch panel 24 constitutes an operation table 52. The microphone A is assigned to channel 1, the musical instrument A is assigned to channel 2, and the microphone B is assigned to channel 3. Thus, the rectangular frame CH1 object graphic corresponding to the arrangement position on the stage 50 of the microphone A is displayed on the touch panel 24 at the lower left, and the rectangular frame CH2 object graphic corresponding to the arrangement position on the stage 50 of the musical instrument A is displayed on the touch panel 24. A rectangular frame CH3 object figure corresponding to the position of the microphone B on the stage 50 is displayed at the lower right. Thus, since the CH1 to CH3 objects are displayed on the operation table 52 corresponding to the arrangement positions of the microphones A and B and the stage 50 of the musical instrument A, the respective objects, the microphones A and B, and the musical instrument A are designated. The sound input device 30 can be intuitively associated. Further, when the arrangement positions of the microphones A and B and the stage 50 of the musical instrument A are moved, the moved positions are detected by the actual position detection circuit 28, and the control circuit 51 that has received this detection signal is placed on the operation table 52. The displayed CH1 to CH3 objects are displayed on the touch panel 24 following the movement of the sound input device 30.

  Further, the parameter values of the channels assigned to the objects are displayed so as to surround the displayed CH1 object to CH3 object. This display is composed of a semicircular scale 24a and a parameter value indicating section 24b representing a currently set parameter value displayed as a numerical value and displayed as a thick arc along the scale. The parameter is a mixing level of a channel assigned to the corresponding object, a pan or equalizer setting value, and the mixing level of each channel is displayed in the illustrated example. The mixing level is set to -3 dB for channel 1, -10 dB for channel 2, and 0 dB for channel 3. In the CH1 object to CH3 object, one parameter among a plurality of types of parameters in the channel is selected, and the display mode of the parameter value is changed according to the selected parameter type. The display mode on the touch panel 24 shown in FIG. 2 is a display mode of the mixing level. For example, when the pan parameter is selected in the CH1 object, the CH1 object 2 indicated by a broken line at the bottom of FIG. The display mode is as follows. In the display mode of the CH1 object 2, the currently set localization position is indicated by a rectangular frame, a semicircular scale 24a surrounding the rectangular frame, and a pentagonal base-shaped figure indicating one of the scale positions. The display mode includes a pan instruction unit 24c.

  When the user performs a predetermined operation of touching a finger on two places on the touch panel 24 with respect to the figures of the CH1 object to the CH3 object displayed on the operation table 52 which is the touch panel 24, it is detected that the operation has been performed. Operation information detected by the circuit 26 and indicating the detected operation content is sent to the control unit 51. The control unit 51 calculates the changed parameter value in the corresponding channel from the sent operation information, sends the changed parameter value of the corresponding channel to the mixing engine unit 29, and applies the changed parameter value to the corresponding value. Display information to be displayed by the CH1 object to CH3 object is sent to the display display circuit 25, and the changed parameter value is displayed on the touch panel 24 by the parameter value indicating unit 24b of the corresponding CH1 object to CH3 object. As described above, when the user performs an operation of touching any of the CH1 object to CH3 object displayed on the touch panel 24, the parameter value of the touched object is changed based on the information such as the touched position. The display of the parameter value indicating unit 24b of the object is updated to the changed parameter value, and the changed parameter value is reflected by the mixing engine unit 29 to change the mixing level and the localization position which are the acoustic characteristics of the channel. Will come to be.

Next, an electroacoustic system 2 according to a second embodiment of the present invention will be described. First, FIG. 4 shows a schematic configuration of a mode for changing parameters in the electronic acoustic system 2 of the second embodiment.
As shown in FIG. 4, the configuration on the stage 50 is the same as the schematic configuration of the first embodiment shown in FIG. 2, and the microphone 31, the musical instrument A, and the microphone B, which are the acoustic input devices 30, each have an RFID 31. Tags 1 to 3 such as are embedded. The acoustic signals from the microphones A and B and the musical instrument A are input to the respective assigned channels of the mixing engine unit 29, mixed with the volume level and frequency characteristics adjusted based on the parameters of each channel, and the volume, pan, and effect. Thus, the singing sound and the performance sound are output toward the audience from the main speaker L32a and the main speaker R32b provided on the side of the stage 50. In the mixing engine unit 29, it is assumed that microphone A is assigned to channel 1, instrument A is assigned to channel 2, and microphone B is assigned to channel 3.

  A mesh type sensor group 27 including a large number of sensors is installed under the floor of the stage 50, and signals sensed by the sensors are input to the actual position detection circuit 28. The information signal of the device unique ID from the sensor that has received the information of the device unique ID transmitted from the tag 1 to the tag 3 is input to the entity position detection circuit 28, and the entity position detection circuit 28 receives the device signal from the input information signal. Based on the unique ID, the positions where the microphones A and B and the musical instrument A are arranged are detected as described above. The position information of the microphones A and B and the musical instrument A detected by the entity position detection circuit 28 is sent to the control unit 51, and the control unit 51 applies the pad 3-1 that is the CH1 object corresponding to the microphone A and the musical instrument A. A pad 34-2 which is a corresponding CH2 object and a pad 34-3 which is a CH3 object corresponding to the microphone B are arranged at respective positions on the operation table 52 corresponding to the position information. In this case, the pads 34-1 to 34-3 are self-propelled pads, and are instructed by receiving an instruction to move to a predetermined position from the control unit 51 via wireless communication means such as infrared communication. It automatically moves to the position. The operation table 52 is provided at the upper right corner with the resonance tag sensor 38a provided at the upper left corner for detecting the respective positions of the pads 34-1 to 34-3 on the operation table 52 and feeding back to the control unit 51. And a resonance tag sensor 38c provided at the center of the lower edge.

  Further, the operation table 52 includes a liquid crystal display 35 whose display is controlled by the display display circuit 36. The liquid crystal display 35 has channels assigned to the pads so as to surround the pads 34-1 to 34-3. The parameter value of is displayed. This display is composed of a semicircular scale 24a and a parameter value indicating section 24b representing a currently set parameter value displayed as a numerical value and displayed as a thick arc along the scale. The parameters are the mixing level of the channel assigned to each pad 34-1 to pad 34-3, pan and equalizer setting values, etc. In the example shown in the figure, the mixing level of each channel is displayed. The mixing level is set to 3 dB, channel 2 is −10 dB, and channel 3 is 0 dB. In the CH1 object to CH3 object made up of the pads 34-1 to 34-3, one parameter is selected from a plurality of types of parameters in the channel, and the parameter value display mode is changed according to the selected parameter type. Is done. The display mode on the liquid crystal display 35 shown in FIG. 4 is a display mode of the mixing level. For example, when the pan parameter is selected in the CH1 object, the CH1 object indicated by a broken line at the bottom of FIG. 2 display modes. In the display mode of the CH1 object 2, the pad 34-1 is left as it is, and a semicircular scale 24a that surrounds the pad 34-1 and a pentagonal base-shaped figure that indicates the position of any scale on this scale. The display mode includes a pan instruction unit 24c indicating the set localization position.

Here, a perspective view showing a configuration example of the pads 34-1 to 34-3 is shown in FIG. In FIG. 5, the internal structure is shown transparently. Since the pads 34-1 to 34-3 have the same configuration, the pads 34-1 to 34-3 are shown as pads 34 in FIG.
As shown in FIG. 5, the outer shape of the pad 34 is a disc shape, and a spherical track ball 34 c is provided in the pad 34 at substantially the center. The trackball 34c is a means for moving the pad 34. When the trackball 34c whose lower part projects downward from the lower surface of the pad 34 is rotated, the pad 34 moves in the rotation direction. Become. The trackball 34c can be rotationally driven by the X-axis motor 34e and the Y-axis motor 34d, which are provided on the inner side of the lower surface of the pad 34 and around the trackball 34c so as to be orthogonal to each other. The pad 34 can be moved in any direction by controlling the rotation direction and speed of the shaft motor 34e and the Y-axis motor 34d. Thus, the pad 34 is a self-propelled pad. In addition, two tag resonance circuits 34a and a tag resonance circuit 34b are spaced apart and provided inside the lower surface of the pad 34. Each of the tag resonance circuits 34a and 34b incorporates an LC resonance circuit, and the resonance frequency fa of the tag resonance circuit 34a and the resonance frequency fb of the tag resonance circuit 34b are set to be different. When radio waves whose frequencies are scanned are radiated from the respective antennas of the three resonance tag sensors 38a to 38c provided in the operation table 52, the tag resonance circuits 34a and 34b have resonance frequencies fa and fb. Only radio waves are re-radiated (reflected). The reradiated radio wave is received by each of the antennas of the three resonance tag sensors 38 a to 38 c, and the received signal is supplied to the pad position detection circuit 39. The pad position detection circuit 39 detects the distances between the three resonance tag sensors 38a to 38c and the tag resonance circuits 34a and 34b from the intensity and waveform of the supplied reception signal, and the detected distance information. From the above, the position and orientation of the pad 34 are calculated.

  That is, the positions and orientations of the pads 34-1 to 34-3 on the operation table 52 are detected by the three resonance tag sensors 38a to 38c and the pad position detection circuit 39. In this case, the resonance frequencies of the two resonance tag sensors of the pad 34-1 are fa and fb, the resonance frequencies of the two resonance tag sensors of the pad 34-2 are fc and fd, and the two resonance tags of the pad 34-3 are two. The resonance frequency of the resonance tag sensor is assumed to be fe and fg, and the resonance frequency of the resonance tag sensor provided with two pads 34-1 to 34-3 is set to be different from each other. The three resonance tag sensors 38a to 38c radiate radio waves that are frequency-scanned at predetermined intervals, respectively, so that a total of six tag resonance circuits 34a and 34a in the pads 34-1 to 34-3 are provided. The reflected waves at the resonance frequencies fa, fb, fc, fd, fe, and fg of 34b... Are received and the received signals are supplied to the pad position detection circuit 39. The pad position detection circuit 39 detects the positions of the two tag resonance circuits in the respective pads based on the received signals from the three resonance tag sensors 38a to 38c, and detects the detected two tag resonances. The position and orientation of the pad are calculated from the circuit position information. Thus, the information on the positions and orientations of the pads 34-1 to 34-3 obtained by the pad position detection circuit 39 is fed back to the control unit 51. The pads 34-1 to 34-3 are automatically moved and arranged on the operation table 52 so as to correspond to the positions where the detected microphone A, microphone B, and musical instrument A are arranged. Further, when the arrangement positions of the microphones A and B and the stage 50 of the musical instrument A are moved, the moved positions are detected by the actual position detection circuit 28, and the control circuit 51 that has received this detection signal is placed on the operation table 52. The displayed pads 34-1 to 34-3 are moved on the touch panel 24 following the movement of the acoustic input device 30.

  Thereby, on the operation table 52, the pad 34-1 of the CH1 object corresponding to the arrangement position on the stage 50 of the microphone A is located on the lower left, and the pad 34- of the CH2 object corresponding to the arrangement position on the stage 50 of the musical instrument A is displayed. 2 is arranged at the center, and the pad 34-3 of the CH3 object corresponding to the arrangement position on the stage 50 of the microphone B is arranged at the lower right. Thus, since the CH1 object to CH3 object are displayed on the operation table 52 corresponding to the arrangement positions of the microphones A and B and the stage 50 of the musical instrument A, the respective pads 34-1 to 34- 3 can be intuitively associated with the microphones A and B and the acoustic input device 30 as the musical instrument A.

  When the user picks any of the pads 34-1 to 34-3, which are CH1 objects to CH3 objects arranged at predetermined positions on the operation table 52, and performs a rotation operation as shown in FIG. The pad position detection circuit 39 detects that the direction of the pad that has been rotated is changed, and the detected operation information indicating the changed direction is sent to the control unit 51. The control unit 51 is regarded as an operation knob that can change the parameter value by rotating the pad 34-1 to the pad 34-3, and the change in the corresponding channel from the operation information indicating the direction of the sent pad after rotation. The calculated parameter value is calculated, and the parameter value of the corresponding channel after the change is sent to the mixing engine unit 29. Further, display information for displaying the changed parameter value in the corresponding CH1 object to CH3 object is sent to the display display circuit 36, and the parameter value indicating section of the CH1 object to CH3 object to which the changed parameter value corresponds to the liquid crystal display 35. 24b is displayed. As described above, when the user performs an operation of rotating the pads 34-1 to 34-3 of the CH1 object to the CH3 object arranged on the operation table 52, the rotation is performed based on the information on the orientation of the pad after the rotation. The parameter value assigned to the operated pad is changed, the display of the parameter value indicating unit 24b in the object is updated to the changed parameter value, and the changed parameter value is reflected in the mixing engine unit 29. The mixing level and the localization position, which are the acoustic characteristics of the channel, are changed.

Next, FIG. 3 is a block diagram showing a block configuration of the electroacoustic system 2 according to the second embodiment of the present invention. The electroacoustic system 2 of the second embodiment is different from the operation table 52 only in the configuration related to the operation table 52, and the other configurations are the same as those of the electroacoustic system 1 of the first embodiment. The configuration to be described is described, and the description of the other configuration is omitted.
In the electroacoustic system 2 of the second embodiment shown in FIG. 3, the liquid crystal display 35 constitutes an operation table 52 that can control the acoustic characteristics of each channel of the electroacoustic system 2. A predetermined image for displaying the above is displayed. On the operation table 52 on the upper surface of the liquid crystal display 35, each acoustic input device 30 is arranged corresponding to the position where a plurality of acoustic input devices 30 such as musical instruments and microphones are actually arranged on the stage 50. A plurality of pads 34 to be represented are automatically arranged. In this case, the arrangement positions of the microphones A and B and the musical instrument A on the stage 50 are detected by the mesh type sensor group 27 and the actual position detection circuit 28 arranged under the floor of the stage 50, and the operation tables of the plurality of pads 34 are detected. The position on 52 is detected by a resonance tag sensor group 38 including, for example, three tag sensors provided on the operation table 52 and a pad position detection circuit 39. Then, the control unit 51 including the CPU 10 has a plurality of pads 34 so that the positions detected by the pad position detection circuit 39 and the like correspond to the arrangement positions of the acoustic input device 30 detected by the entity position detection circuit 28 and the like. Movement control is performed.

The movement control instruction to each pad 34 from the control unit 51 is performed wirelessly via a pad instruction infrared I / F 37. Each pad 34 includes an instruction receiving infrared I / F 46, receives movement control instruction information transmitted from the pad instruction infrared I / F 37, and supplies the instruction information to the control circuit 45. The control circuit 45 controls the driving of the X-axis motor 34e and the Y-axis motor 34d according to the instruction information, so that the pad 34 moves to the position instructed by the instruction information. Each pad 34 includes two tag resonance circuits 34a and 34b for detecting the position and orientation of the pad 34.
In the electronic acoustic system 2 of the second embodiment, the acoustic input devices 30 on the stage 50 corresponding to the pads 34-1 to 34-3 disposed on the operation table 52 can be intuitively associated with each other. it can. Then, by performing a rotation operation on the operation table 52 with respect to the pads 34-1 to 34-3, channels to which the acoustic input devices 30 corresponding to the pads 34-1 to 34-3 are assigned. The value of the parameter can be manipulated. As described above, by operating the object arranged on the operation table 52 on the operation table 52, it is possible to control the level of the musical instrument or microphone that is the acoustic input device 30 corresponding to the object. .

Next, FIG. 6 shows a flowchart of the power-on process executed by the CPU 10 on the OS when the power is turned on in the electronic acoustic system according to the present invention.
When power is turned on in the electroacoustic system, the power-on process shown in FIG. 6 is started, and the mixing engine unit 29 is initialized in step S10. In the initial setting, the setting data read from the scene memory is set in the mixing engine unit 29, or the setting data set last time is set in the mixing engine unit 29, and the mixing signal to which desired acoustic characteristics are given is mixed. Output from the engine unit 29 is enabled. When the initial setting is completed, each of the sound input devices 30 of the microphones A and B and the musical instrument A actually arranged on the stage 50 is associated with each RFID 31 having a unique device unique ID in step S11. At the same time, the channels are respectively associated with the sound input devices 30 (device unique IDs), and the association results are stored as a table. Next, in step S12, an actual position detection process for detecting each current position on the stage 50 of the acoustic input device 30 is performed. Further, in step S13, a detection process for performing a touch detection process for detecting an operation on the graphic displayed on the touch panel 24 or a pad detection process for detecting an operation on the pad 34 on the operation table 52 is performed. Based on the operation information detected in this detection process, a parameter change process for updating a parameter set in the mixing engine unit 29 is performed in step S14, and subsequently, a parameter display process for updating a parameter value displayed in step S15. Is done. The processing from step S12 to step S15 is repeatedly executed until the power is turned off, and the parameters used when the acoustic signal processing is performed by the mixing engine unit 29 can be changed at any time.

Next, FIG. 7 shows a flowchart of the actual position detection process executed in step S12 of the power-on process.
When the entity position detection process shown in FIG. 7 is started, the order of the target channels for performing this process is determined in step S20, and the device unique ID corresponding to the target channel in the determined order is determined in step S11. It is acquired in step S21 by referring to the stored table. Next, in step S22, the actual position detection circuit 28 detects the position of the RFID 31 that is the device unique ID corresponding to the target channel, thereby detecting the position of the acoustic input device 30 corresponding to the target channel. Next, in step S23, the target position of the object to be the figure or pad 34 set corresponding to the detected position of the sound input device 30 of the target channel is calculated. Then, the detected position information of the acoustic input device 30 in the target channel and the target position information of the corresponding object are temporarily stored in step S24 in association with the target channel. Next, in step S25, it is determined whether or not the above processing has been performed for all channels. If it is determined that the above processing is not performed on all channels, the process returns to step S20 and the above processing is performed on the next channel, and the above processing is performed on all channels. Steps S20 to S25 are repeated until the processing is performed. If it is determined in step S25 that the above-described processing has been performed for all channels, the entity position detection processing ends, and the process returns to step S13 of the power-on processing.

Next, FIG. 8 shows a flowchart of the touch detection process executed in step S13 of the power-on process when the electronic acoustic system 1 of the first embodiment is used.
When the touch detection process shown in FIG. 8 is started, the order of target channels to be subjected to this process is determined in step S60. Next, based on the object target position obtained in the actual position detection process executed in step S12 of the power-on process, the display position of the rectangular frame-like figure as the object in the target channel in the determined order is stepped. Updated in S61. Then, the process of detecting the orientations of the two points touched in the vicinity of the figure in the target channel whose display position has been updated is performed in step S62. Next, in step S62, it is determined in step S63 whether two points touched in the vicinity of the graphic are detected and the direction of the two points is detected. If two points touched in the vicinity of the figure are detected and the directions of the two points are detected, the process proceeds to step S64, the detected direction is stored, and the process proceeds to step S65. If two points touched in the vicinity of the figure are not detected or the direction of the two points is not detected, the process of step S64 is skipped and the process branches to step S65. In step S65, it is determined whether or not the above processing has been performed for all channels. If it is determined that the above processing is not performed on all channels, the process returns to step S60 and the above processing is performed on the next channel, and the above processing is performed on all channels. Steps S60 to S65 are repeated until the processing is performed. If it is determined in step S65 that the above-described processing has been performed for all channels, the touch detection processing ends, and the process returns to step S14 of the power-on processing.

Next, FIG. 9 shows a flowchart of the pad detection process executed in step S13 of the power-on process when the electronic acoustic system 2 of the second embodiment is used.
When the pad detection process shown in FIG. 9 is started, the pad position detection circuit 39 performs a frequency scan using the resonance tag sensors 38a to 38c, whereby the tag resonance provided by the pads 34-1 to 34-3 two by two. A process of detecting a reflected wave from the circuit is performed in step S30. Next, in step S31, the order of target channels for performing this process is determined. Then, the positions of the two tag resonance circuits 34a and 34b provided in the pad 34 in the target channel in the determined order are analyzed by analyzing the detection signal of the reflected wave that is the scan result in the process of step S30. Desired. In step S34, the current position and orientation of the pad 34 in the target channel are calculated from the obtained position information of the two tag resonance circuits 34a and 34b in the target channel, and the calculated current position and orientation information of the pad 34 is calculated. Remember. Then, a difference vector between the calculated information on the current position of the pad 34 and the target position where the pad 34 as the object in the target channel is arranged is obtained in step S35. Next, a movement instruction for driving the X-axis motor 34e and the Y-axis motor 34d in accordance with the magnitude and direction of the obtained difference vector and the current orientation of the pad 34 is transmitted to the pad 34 by infrared communication, and is received by the pad 34. The X-axis motor 34e and the Y-axis motor 34d are driven based on the movement instruction information, and the pad 34 of the target channel moves to the target position. Subsequently, in step S37, it is determined whether or not the above processing has been performed for all channels. If it is determined that the above processing is not performed on all channels, the process returns to step S30, the above processing is performed on the next channel, and the above processing is performed on all channels. Steps S30 to S37 are repeated until the processing is performed. If it is determined in step S37 that the above-described processing has been performed on all channels, the pad detection processing ends, and the process returns to step S14 of the power-on processing.

Next, FIG. 10 shows a flowchart of the parameter changing process executed in step S14 of the power-on process.
When the parameter changing process shown in FIG. 10 is started, the order of the target channels on which this process is performed is determined in step S40. Then, it is determined in step S41 whether or not the orientation of the determined object of the target channel has been changed since the previous processing. In this step S41, whether the orientation information stored in step S63 of the touch detection process or the orientation information stored in step S34 of the pad detection process has been changed from the orientation information in the previous process. It is done by judging. If it is determined that the orientation of the object of the target channel has been changed since the previous processing, the process proceeds to step S42 to calculate a parameter reflecting the change in orientation. Next, the calculated parameters are supplied to the mixing engine unit 29 in step S43, the parameters are updated, and acoustic signal processing is performed using the updated parameters. Furthermore, the direction information stored in step S44 is updated to the changed direction information, and the process proceeds to step S45. If it is determined in step S41 that the orientation of the object of the target channel has not been changed since the previous processing, the process branches to step S45 to check whether or not the above processing has been performed for all channels. This is determined in step S45. If it is determined that the above processing is not performed on all channels, the process returns to step S40 and the above processing is performed on the next channel, and the above processing is performed on all channels. Steps S40 to S45 are repeated until the processing is performed. If it is determined in step S45 that the above-described processing has been performed for all channels, the parameter change processing ends, and the process returns to step S15 of the power-on processing.

Next, FIG. 11 shows a flowchart of the parameter display process executed in step S15 of the power-on process.
When the parameter display process shown in FIG. 11 is started, the order of target channels to be subjected to this process is determined in step S50. In step S51, the corresponding parameter is acquired from the mixing engine unit 29 in which the parameter for the determined target channel is set, and the acquired parameter value is displayed in the vicinity of the object of the target channel in step S52. The In this case, the position of the object of the target channel is set as the target position of the object stored in step S24 of the actual position detection process. Next, in step S53, it is determined whether or not the above processing has been performed for all channels. If it is determined that the above processing is not performed on all channels, the process returns to step S50, the above processing is performed on the next channel, and the above processing is performed on all channels. Steps S50 to S53 are repeated until the processing is performed. If it is determined in step S53 that the above processing has been performed for all channels, the parameter display processing ends, and the process returns to step S12 of the power-on processing.

In the present invention described above, the acoustic input device 30 may be an acoustic instrument such as a drum, a microphone for picking up vocals, an electronic musical instrument, or the like. Further, the position of the acoustic input device 30 on the stage 50 is detected by the mesh type sensor group 27 and the actual position detection circuit 28. However, the present invention is not limited to this. The position of the sound input device 30 may be detected by identifying the contour of the sound input device 30 by performing image recognition processing. In this case, the movement of the acoustic input device 30 is tracked by performing the image recognition process every predetermined period.
Further, in the electronic acoustic system 2 of the second embodiment, the operation table 52 is provided with the liquid crystal display 35, but instead of this, a screen is provided so that the screen is irradiated with an image from above or below, thereby providing a stage. The parameters of the corresponding channel may be displayed in the vicinity of the pads 34-1 to 34-3 arranged corresponding to each acoustic input device 30 on 50. Furthermore, although the pad 34 is self-propelled, instead of this, the operation table 52 may be constituted by a surface acoustic wave motor, or the pad 34 and the operation table 52 may constitute a planar linear motor. Alternatively, an array type airflow actuator by bulk micromachining may be spread on the operation table 52 to move the pad 34. Furthermore, the number of resonance tag sensors provided on the operation table 52 is not limited to three, and may be two or four or more.

It is a block diagram which shows the block configuration of the electroacoustic system concerning 1st Example of this invention. It is a figure which shows schematic structure of the aspect which changes a parameter in the electroacoustic system concerning 1st Example of this invention. It is a block diagram which shows the block configuration of the electroacoustic system concerning 2nd Example of this invention. It is a figure which shows schematic structure of the aspect which changes a parameter in the electroacoustic system concerning 2nd Example of this invention. It is a perspective view which shows the structural example of the pad in the electronic acoustic system concerning 2nd Example of this invention. It is a flowchart of the power-on process which CPU performs when the power is turned on in the electroacoustic system of this invention. It is a flowchart of the actual position detection process performed in step S12 of the power-on process in the electronic acoustic system of this invention. It is a flowchart of the touch detection process performed in step S13 of a power-on process when the electroacoustic system of this invention is a 1st Example. It is a flowchart of the pad detection process performed in step S13 of a power-on process when the electroacoustic system of this invention is a 2nd Example. It is a flowchart of the parameter change process performed in step S14 of the power-on process in the electronic acoustic system of this invention. It is a flowchart of the parameter display process performed in step S15 of the power-on process in the electroacoustic system of this invention.

Explanation of symbols

1 electronic acoustic system, 2 electronic acoustic system, 10 CPU, 11 ROM, 12 RAM, 13 timer, 14 external storage device, 15 communication I / F, 16 communication network, 17 server device, 18 MIDI I / F, 19 MIDI device , 20 LED display circuit, 21 LED display, 22 setting operation detection circuit, 23 setting operation element, 24 touch panel, 24a scale, 24b parameter value instruction unit, 24c pan instruction unit, 25 display display circuit, 26 touch detection circuit, 27 Mesh type sensor group, 28 entity position detection circuit, 29 mixing engine unit, 30 acoustic input device, 31 RFID, 32 acoustic output device, 32a main speaker L, 32b main speaker R, 33 bus, 34 pad, 34a tag resonance circuit, Both 34b tags Vibration circuit, 34c trackball, 34d Y-axis motor, 34e X-axis motor, 35 liquid crystal display, 36 display display circuit, 37 pad indicating infrared I / F, 38 resonance tag sensor group, 38a, 38b, 38c resonance tag sensor, 39 Pad position detection circuit, 40 input signal I / F, 41 output signal I / F, 42 digital signal processing circuit, 45 control circuit, 46 instruction reception infrared I / F, 50 stage, 51 control unit, 52 operation table

Claims (4)

Acoustic processing means for acoustically processing each of acoustic signals input from a plurality of acoustic input devices based on respective parameters;
Position detecting means for detecting the arrangement position of each of the plurality of acoustic input devices;
Setting for setting an object that can change the value of each parameter of the acoustic input device at a position on the operation table corresponding to the position detected by the position detection unit, corresponding to each of the acoustic input devices. Means,
Parameter display means for displaying the value of the parameter of each acoustic input device in the vicinity of the corresponding object;
An electronic acoustic system comprising: Acoustic processing means for acoustically processing each of acoustic signals input from a plurality of acoustic input devices based on respective parameters;
Position detecting means for detecting the arrangement position of each of the plurality of acoustic input devices;
Setting for setting an object that can change the value of each parameter of the acoustic input device at a position on the operation table corresponding to the position detected by the position detection unit, corresponding to each of the acoustic input devices. Means,
Operation detection means for detecting an operation on each of the objects;
Parameter changing means for changing the value of the parameter of the acoustic input device corresponding to the object for which an operation has been detected based on the operation detected by the operation detecting means;
An electronic acoustic system comprising:   The electroacoustic system according to claim 1, wherein the operation table is a touch panel, and the setting unit displays a graphic as the object at a predetermined position on the screen of the touch panel.   3. The electronic acoustic system according to claim 1, wherein the setting means arranges a movable and rotatable pad as the object at a predetermined position on the operation table.

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