JP2007074359A - Acoustic signal processing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an acoustic signal processing apparatus that can set a parameter value denoting a level to a value frequently used in addition to an initial value with a simple operation. <P>SOLUTION: In the acoustic signal processing apparatus for processing a received acoustic signal on the basis of operating data stored in a current memory and outputting the processed signal, when a level operating unit for setting level data included in the operating data is operated while an initial value setting switch 102 is operated, a value of the level data in the current memory corresponding to the level operating unit is changed into a prescribed initial value, and when the level operating unit is operated while a standard value setting switch 103 is operated, a value of the level data in the current memory corresponding to the level operating unit is changed into a prescribed standard value. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an acoustic signal processing apparatus that processes and outputs an input acoustic signal based on operation data stored in a current memory.

  Conventionally, there has been an acoustic signal processing device such as a digital mixer that outputs an acoustic signal input to a plurality of input channels (ch) by performing signal processing such as adjustment of amplitude characteristics and frequency characteristics or mixing by a mixing bus. Are known. In such an acoustic signal processing device, it is also known that operation data indicating parameter values reflected in signal processing is stored in a current memory and signal processing is performed based on the operation data. Yes. In this case, the user can cause the acoustic signal processing apparatus to perform signal processing with a desired characteristic by setting the values of the respective parameters in the current memory using an operator on the console.

In this case, there is a request to return the parameter value to a predetermined initial value by a simple operation when the device is used for another purpose, or when the user does not like the setting once and wants to redo the setting. there were. In particular, there is a request to leave the setting contents of the reusable range as it is and return only the parameter values in the desired range to the initial values.
For example, techniques described in Patent Documents 1 and 2 are known as techniques for meeting such demands.

In Patent Document 1, when an instruction to return the information stored in the memory to the initial state is given in the electronic musical instrument, the predesignated information is returned to the initial state, while other information is maintained as it is. It is described.
In Patent Document 2, when an operator for setting a parameter is operated while operating an operator for initialization in an operating device of an electronic device, the value of the parameter is set to a predetermined initial value. It is described to do so.
Japanese Patent No. 3055525 (particularly claim 1) JP 2003-219335 A

By the way, as described above, when a function for returning the parameter value to the initial value is provided, a value that does not output a signal from the acoustic signal processing device is often prepared as the initial value. For example, the fader level that determines the output level from the input channel to the main bus (stereo bus), or the send level that determines the output level to the mixing bus is set to minus infinity decibels (−∞ dB).
This is to prevent a situation in which when the parameter value is changed to the initial value, a large level signal is output from the acoustic signal processing device, and another acoustic device connected to the output is damaged. Therefore, it is very meaningful to set the initial value as described above.

On the other hand, the parameter indicating the level also has a standard value set when it is desired to output a signal. For example, 0 dB which does not change the signal level. Since such values are also frequently used in parameter editing, there has been a demand for setting the parameter values to such values with a simple operation.
However, in the conventional method described above, although it is possible to set the parameter value to the initial value with a simple operation, in order to set the parameter value to a value different from the initial value, an appropriate operation amount for the operator There is a problem that careful operation is necessary because it is necessary to set the value by performing the above operation.

  This invention solves such a problem, and in the acoustic signal processing apparatus, the value of the parameter indicating the level can be set to the initial value with a simple operation, and the value frequently used other than the initial value is also provided. The purpose is to enable easy setting.

  In order to achieve the above object, an acoustic signal processing device of the present invention processes a current memory that stores operation data including a plurality of level data, and an input acoustic signal based on the operation data stored in the current memory. Output signal processing means, a level operator for setting each level data, first and second operators different from the level operator, and the level operator is the first and first level operators. Value change means for changing the value of level data in the current memory corresponding to the level operator in accordance with the amount of operation of the level operator when operated when none of the two operators are operated When the level operator is operated while operating the first operator, the level data value in the current memory corresponding to the level operator is set to a predetermined value. When the level operator is operated while operating the second operator, the level data value in the current memory corresponding to the level operator is set to a predetermined value. And a standardization means for changing to a standard value.

  Alternatively, a current memory that stores operation data including a plurality of level data, a signal processing unit that processes and outputs an acoustic signal input based on the operation data stored in the current memory, and the operation data include A setting operator for setting data, first and second operators different from the setting operator, and when the setting operator is not operated by either the first or second operator When operated, value changing means for changing the value of the data in the current memory corresponding to the setting operator according to the operation content of the setting operator; and the setting operator is the first operator. When the operation is performed while operating, the initialization means for changing the value of the data in the current memory corresponding to the setting operator to a predetermined initial value, and the setting operator is the second operation. When operated while operating a child, if the data corresponding to the setting operator is data other than level data, the value of the data in the current memory is not changed, and the operated setting operator is not changed. If the corresponding data is level data, standardization means for changing the value of the data in the current memory to a predetermined standard value is provided.

  Alternatively, a current memory for storing operation data including a plurality of level data, a signal processing means for processing and outputting an acoustic signal input based on the operation data stored in the current memory, and setting each level data An electric fader, a first operating element different from the electric fader, a third operating element corresponding to the electric fader and different from the first and second operating elements, and the first operating element. When the third operator is operated while operating the first operator, the level data value in the current memory corresponding to the third operator is changed to a predetermined initial value, and An initialization means for moving the knob of the electric fader corresponding to the third operator to a position corresponding to the initial value; and a case where the third operator is operated while operating the second operator. In addition, the level data value in the current memory corresponding to the third operating element is changed to a predetermined standard value, and the knob of the electric fader corresponding to the third operating element corresponds to the standard value. And a standardization means for moving to a position.

  According to the acoustic signal processing apparatus of the present invention as described above, the value of the parameter indicating the level can be set to the initial value with a simple operation, and other than the initial value, the frequently used value can be easily set. It can be set by operation.

Hereinafter, the best mode for carrying out the present invention will be specifically described with reference to the drawings.
First, the configuration of a digital mixer which is an embodiment of the acoustic signal processing apparatus of the present invention will be described.
FIG. 1 is a block diagram showing the configuration of the digital mixer.
As shown in FIG. 1, the digital mixer 10 includes a CPU 11, a flash memory 12, a RAM 13, an external device input / output unit (I / O) 14, a PC (personal computer) I / O 15, a touch screen 16, and other displays 17. , Electric fader 18, other operation element 19, waveform I / O 20, and signal processing unit (DSP) 21, which are connected by a system bus 22. And it has a function which performs various signal processing with respect to the acoustic signal inputted from a plurality of input channels (ch), and outputs it from a plurality of output channels.

The CPU 11 is a control unit that performs overall control of the operation of the digital mixer 10, and by executing a required control program stored in the flash memory 12, communication with the external device I / O 14 and the waveform I / O 20 is performed. Processing such as controlling display on the touch screen 16 and the other display 17, detecting operation of the electric fader 18 and other operation element 19, and setting / changing parameter values and controlling operation of each unit according to the operation. Do.
The flash memory 12 is a rewritable nonvolatile storage unit 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 external device I / O 14 is an interface for connecting various external devices to perform input / output. For example, an interface for connecting an external display, a mouse, a keyboard for inputting characters, an operation panel, and the like is prepared. . Further, even if the display device and the operation element of the main body are configured to be very simple, it is conceivable that parameter change / setting and operation instruction can be performed by utilizing these external devices.
The PCI / O 15 is an interface for communicating with a PC. For example, the PCI / O 15 may be a USB (Universal Serial Bus) interface or an interface for performing communication using Ethernet (registered trademark).

The touch screen 16 is a display means that can accept a user's operation on the display content on a display screen that displays a GUI (graphical user interface), for example, a touch panel on a liquid crystal panel (LCD). Can be configured. The display on the touch screen 16 and the detection of the operation content are performed according to control by the CPU 11.
The other display unit 17 is a display unit other than the touch screen 16 that displays various information in accordance with control by the CPU 11, and can be configured by, for example, a light emitting diode (LED) or a small LCD. Or the structure which embeds LED in an operation element is also possible.

The electric fader 18 is a level operator for setting a parameter indicating the fader level of each channel in the digital mixer 10. For example, a knob is provided as an operation unit, and the movement amount of the knob is detected by a linear encoder. Thus, the operation amount can be detected. Further, driving means such as a motor for driving the knob is provided so that the knob can be moved to an arbitrary position under the control of the CPU 11.
The other operation element 19 is other than the electric fader 18 for accepting an operation on the digital mixer 10, and can be constituted by various keys, buttons, dials, sliders, and the like.

  The waveform I / O 20 is an interface for receiving an input of an acoustic signal to be processed by the DSP 21 and outputting the processed acoustic signal. This waveform I / O 20 includes an A / D conversion board capable of analog input of 4 channels (ch) by one board, a D / A conversion board capable of analog output of 4 ch by one board, and 8 ch by one board. A plurality of digital input / output boards capable of digital input / output can be mounted in appropriate combinations, and signals are actually input / output via these boards.

  The DSP 21 includes a signal processing circuit, and performs various signal processing such as mixing and equalizing on the acoustic signal input from the waveform I / O 20 according to the values of various parameters included in the operation data stored in the current memory. Signal processing means for outputting to the waveform I / O 20. It is conceivable that the storage area of the current memory is prepared in a memory provided in the RAM 13 or the DSP 21 itself. The operation data is data including one set of parameter values used by the DSP 21 for signal processing.

The DSP 21 has 32 input channels, the input channels of the waveform I / O 20 and the input ports of the DSP 21 are associated with each other by input patches, and the signals input to the waveform I / O 20 are associated with each input channel. Can be entered.
The DSP 21 has a pair of stereo (ST) buses and 16 mixed (MIX) buses, and sends the signals input to the input channels to the respective buses according to the setting contents of the parameters. Input signals can be mixed together.
The outputs of these buses are output from the corresponding output channels, and the output path also associates the output channel of the DSP 21 with the output port of the waveform I / O 20 by the output patch as in the case of input. I am doing so.

Next, FIG. 2 shows in more detail the configuration of signal processing executed by the DSP 21 shown in FIG.
As shown in this figure, the signal processing in the DSP 21 includes an input patch 33, an input channel 40, an ST bus 60, a MIX bus 70, an ST output channel 81, a MIX output channel 82, and an output patch 34.
In the DSP 21, either the analog input port 31 or the digital input port 32 provided in the waveform I / O 20 is patched (connected) to each of the 32 input channels 40, and each input channel is input from the patched port. After the signal to be processed is processed by an attenuator, equalizer, or the like, the processed signal is sent to any of the ST bus 60 and the 16 MIX buses 70. That is, this transmission can be turned on / off for each combination of the input channel 40 and the bus.

Further, in the ST bus 60 and each MIX bus 70, signals input from the respective input channels 40 are mixed, and the mixed signal in the ST bus 60 is supplied to the ST output channel 81, and the mixed signal in the MIX bus 70 is supplied to each system. Output to a 16 ch MIX output ch 82 provided correspondingly. In each of the output channels 81 and 82, the signal input from the corresponding bus is subjected to signal processing by an equalizer, a compressor, or the like, and the processed signal is provided to the waveform I / O 20 by the output patch 34. 35 and the digital output port 36, and output from the output port of the patch destination.
Note that the contents of signal processing by these units provided in the DSP 21 can be controlled by setting values of predetermined parameters included in the operation data in the current memory, and the functions of the units are realized by software. Alternatively, it may be realized by hardware.

Next, FIG. 3 shows a configuration of a part related to signal input from each input channel to the ST bus and the MIX bus in the signal processing in the DSP 21.
As shown in FIG. 3, each input channel 40 is provided with an attenuator 41, an equalizer 42, a compressor 43, a fader 44, and an on switch 45. Further, a pan 46 and ST send switches 47 and 47 are provided in a path for inputting a signal to the ST bus 60, and a pre / post (PRE / POST) is provided for a path for inputting a signal to each MIX bus 70. A switch 51, a send level fader 52, and a send on switch 53 are provided.

  The signal input to the input channel 40 is subjected to signal processing by an attenuator 41, an equalizer 42, a compressor 43, and a fader 44. If the on switch 45 is on, the sound image localization set in the pan 46 is set. It is distributed to L and R according to the position, and is input to the ST bus 60 of L and R, respectively.

In addition, a signal at a position corresponding to the state of the PRE / POST switch 51 in the signal input path for each MIX bus 70 is input to the corresponding MIX bus 70. In the input process, the level is adjusted by the send level fader 52, and a signal is input to the MIX bus 70 only when the send on switch 53 is on.
If the PRE / POST switch 51 is on the POST side, signals after the fader 44 and the ON switch 45 are input to the MIX bus 70. If the PRE / POST switch 51 is on the PRE side, a signal between the compressor 43 and the fader 44 is input.

  In such an input channel 40, the attenuator 41, the fader 44, the send level fader 52, etc. are level control elements used to adjust the signal level, and parameters indicating the level adjustment contents in such components are shown. The value is level data. This level data is a part of the operation data. Here, the level of the signal processed by the input channel 40 is mainly controlled by the attenuator 41, and the level of the signal output from the input channel 40 to the bus is mainly controlled by the fader 44 and the send level fader 52.

FIG. 3 shows only the configuration of one input channel 40 in detail, but the other 31 input channels have the same configuration. In the ST bus 60 and each MIX bus 70, the 32 input channels Can be mixed.
It should be noted that the functions of the DSP 21 such as the input channel 40 and each bus as described above can be realized by using dedicated hardware or by causing a general-purpose CPU to execute appropriate software. May be realized.

  Although not shown in detail, the ST output channel 81 and each MIX output channel 82 are also provided with an equalizer, a compressor, a fader, and an on switch, and these processors process the signals output from the corresponding buses. Like to do. Among them, the fader is a main level control element used for adjusting the signal level, and the parameter value indicating the level adjustment content in the fader is also level data.

Next, the configuration of the console of the digital mixer 10 will be described.
FIG. 4 is a diagram showing a schematic configuration of the console.
The digital mixer 10 has a console 100 configured as shown in FIG. 4, on which the components shown as the touch screen 16, other display device 17, electric fader 18, and other operation element 19 in FIG. Is provided.
These are generally provided for each function, and are provided as an assigned channel strip unit 101, an initial value setting switch 102, a standard value setting switch 103, a layer selection operation unit 104, and various operators 105 other than the touch screen 16.

Of these, the assigned channel strip unit 101 has an operator for setting parameter values for 8 channels of the input channel or the output channel, and is assigned to the channel of the layer according to the operation in the layer selection operation unit 104. , And used as an operator for setting the parameters of that channel.
The initial value setting switch 102 is a first operator for giving an instruction to change the parameter value to the initial value, and the detailed function thereof will be described later.
The initial value is a value written to the parameter of the portion corresponding to the reset portion of the operation data in the current memory when the entire digital mixer or a part of the components is reset. When a value is set, the characteristics of signal processing elements such as compressors and equalizers become linear or flat, level adjustment elements that determine the output level of input channels and output channels are narrowed down, and other level adjustment elements are set to standard values described later. It is slewed with the same value as if. An initial value is determined by the manufacturer for each of all parameters included in the operation data stored in the current memory.

The standard value setting switch 103 is a second operation element for giving an instruction to change the parameter value to the standard value. The main feature of this embodiment is that such an operation element is provided. The detailed function will be described later.
Note that the standard value is a value set as each level data when setting the signal to flow to each component of the digital mixer in standard usage. Specifically, the manufacturer sets the characteristics of the digital mixer. This is a value (called a nominal value) specified as a level that gives a nominal specification of. That is, the standard value is determined only for the level data among all the parameters included in the operation data stored in the current memory.
The layer selection operation unit 104 is an operation unit having an operation element for receiving selection of a layer that determines which channel the allocated channel strip unit 101 is allocated to.
Various operators 105 are operators other than those described above.

Here, FIG. 5 shows a detailed configuration of the assigned channel strip unit 101.
As shown in this figure, the assigned channel strip unit 101 is provided with eight channel strips 110, and each channel strip 110 can set a parameter value for one channel. Each channel strip 110 includes a rotary encoder 111, a selection switch 112, a level meter 113, an on switch 114, and an electric fader 18.

  Among these, the rotary encoder 111 is an operator that detects the amount of rotation of the knob as an operation amount. As will be described later, an operator on the screen to be displayed on the touch screen 16 is assigned to the rotary encoder 111 so that the rotary encoder 111 can be used to set a parameter value corresponding to the operator. Therefore, when the knob for setting the level data described above is assigned to the rotary encoder 111, the rotary encoder 111 functions as a level operator. However, in other cases, the rotary encoder 111 functions as an operator other than the level operator.

The selection switch 112 is an operator for setting selection / non-selection of the corresponding channel. Further, it can also be used as an operator for giving an instruction to display on the touch screen 16 a screen for setting related channels.
The level meter 113 is display means for displaying the level of the signal to be processed in the corresponding ch. It may be possible to select which part of the channel to display the signal level.

The on switch 114 is an operator for setting on / off of a corresponding channel (for example, when the ch strip 110 is assigned to an input channel, the on switch 45 shown in FIG. 3 is turned on / off). is there.
The electric fader 18 sets the signal level of the corresponding channel according to the position of the knob 115 (for example, when the ch strip 110 is assigned to the input channel, the level adjustment content in the fader 44 shown in FIG. 3). This is a level control. As described above, the knob 115 can be driven by a motor or the like.

Next, FIG. 6 shows a detailed configuration of the layer selection operation unit 104.
As shown in this figure, the layer selection operation unit 104 includes an input channel selection unit 121, a MIX output channel selection unit 122, and an ST output channel selection unit 123.
The input channel selection unit 121 divides the 32 input channels 30 into 8 units, and assigns the 1st to 8th, 9th to 16th, 17th to 24th, and 25th to 32nd input channels to the allocated channel strip unit 101. Four operators for selecting a layer to be assigned are provided.

The MIX output channel selection unit 122 divides 16 MIX output channels 82 into 8 systems, and 2 for selecting a layer to which the 1st to 8th and 9th to 16th MIX output channels are allocated to the allocated channel strip unit 101. There are two controls.
The ST output channel selector 123 is provided with an operator for selecting a layer to which the L and R output channels constituting the ST output channel 81 are allocated to the allocated channel strip unit 101.
With these operators, a layer that defines a channel to be allocated to the allocated channel strip unit 101 can be exclusively selected.

Next, a display example of a screen displayed on the touch screen 16 will be described.
First, FIG. 7 shows a display example of the input channel screen.
The input channel screen 200 is a GUI screen for displaying the contents currently set as parameters used for signal processing in the input channel 40 and receiving operations related to the settings. When any layer is selected by the input channel selection unit 121 of the layer selection operation unit 104, the input channel screen 200 related to the input channel allocated to the allocated channel strip unit 101 by the layer is displayed on the touch screen 16. I have to. FIG. 7 shows a screen example when the first to eighth input channels are assigned.

  In such an input channel screen 200, a channel slot 210 corresponding to each input channel is provided, and the contents relating to that channel are displayed. Each channel slot 210 is provided with a channel name block 211, a frequency characteristic block 212, a dynamics block 213, a send level display unit 214, and a pan display unit 217.

Among these, the channel name block 211 is a block that displays the channel number, name, usage, and the like.
The frequency characteristic block 212 is a block that displays the frequency characteristic of the equalizer 42 shown in FIG. 3 in a graph based on the current value of the parameter. Although the attenuator 41 also belongs to this block, here, the display regarding the parameter is not performed.
The dynamics block 213 is a block that displays a threshold value that is a parameter of the compressor 43 illustrated in FIG. 3 and a graph that displays a real time value of an input level and a gain reduction amount.
For each of these blocks, when there is a touch operation in the block on the touch screen 16, another GUI screen corresponding to the operated block is displayed on the touch screen 16. In this respect, Each block is also an operator. This point will be described later.

  The send level display unit 214 is a display unit that displays the level set for each send level fader 52 shown in FIG. 3 by the position of the mark 215a on the knob 215 and the number below it. Sixteen knobs 215 are provided corresponding to the output paths to the 16 systems of the MIX bus 70, and the levels of the send level faders 52 of all paths can be displayed by each knob 215. Further, the ON / OFF state of the corresponding send-on switch 53 is also displayed depending on the brightness or darkness of the knob 215, the color, or the pattern. In the figure, the knob indicated by the solid line is on, and the knob indicated by the broken line is off.

  Further, when a touch operation is performed on any of the knobs 215 on the touch screen 16, the touched knob is assigned to the rotary encoder 111 illustrated in FIG. 5, and a parameter value corresponding to the knob can be set by the rotary encoder 111. Like that. A knob assigned to the rotary encoder 111 is indicated by a cursor 216. At this time, a line 216a extending from the center toward the outer periphery of the cursor 216 is displayed so as to overlap the mark 215a so that the parameter value corresponding to the knob 215 can be easily recognized.

  Also, when a touch operation is performed in any of the channel slots, the knobs are assigned so that the knobs of the send level faders 52 are assigned to the MIX buses of the same number for the rotary encoders 111 of all the channel strips 110. Yes. Although it is not essential to do so, it is possible to intuitively recognize which knob is assigned to the rotary encoder 111 by doing so.

The pan display unit 217 is a display unit that displays the sound image localization position set for the pan 46 shown in FIG. 3 by the position of the mark 218a on the knob 218 and the number below the mark 218a. In addition, an ST send button 219 is provided so that the on / off state of the ST send switch 47 shown in FIG. 3 can be controlled.
Further, when a touch operation is performed on the knob 218 on the touch screen 16, the knob 218 is assigned to the rotary encoder 111 and the parameter value corresponding to the knob can be set by the rotary encoder 111 as in the case of the knob 215. I have to.

  The above is the configuration and function of the input channel screen. Although not shown, a GUI screen for realizing the same function is also prepared for the ST output ch 81 and the MIX output ch 82. Each time a layer is selected by the layer selection operation unit 104, the display is switched to the GUI screen related to the channels assigned to the assigned channel strip unit 101 by the newly selected layer.

Next, another GUI screen corresponding to the block described above will be described by taking a dynamics screen as an example.
FIG. 8 shows a display example of the dynamics screen.
In the digital mixer 10, when a touch operation is performed on the dynamics block 213 of any ch slot on the input channel screen 200 described above, a dynamics screen 300 as shown in FIG. 8 is displayed in a pop-up on the touch screen 16. At this time, the cursor 320 is displayed at the position of the ch corresponding to the ch slot where the touch operation has been performed.

  The dynamics screen 300 is a screen that displays the characteristics set for the attenuator 41 and the compressor 43 shown in FIG. 3 in more detail than the case of the dynamics block 213 for the 8 channels whose contents are displayed on the input channel screen 200. is there. The dynamics screen 300 includes graph display sections 311, 312, a knob 313, an on switch 314 corresponding to each channel, a close button 315 for performing operations on the entire screen, a copy button 316, a paste button 317, an initialization. A button 318 and a format selection button 319 are provided.

Among these, the graph display unit 311 is a display unit that displays the input level to the compressor 43 and the amount of gain reduction in the same manner as the dynamics block 213 in FIG. 7, and the graph display unit 312 is the threshold and range of the compressor 43. It is a display part which displays the input-output characteristic based on these parameters in a graph.
The knob 313 displays one value of parameters that can be set for the compressor 43 by the position of the mark 313a and the number below the mark 313a. Which parameter value is to be displayed can be set by a menu or the like (not shown). Here, as shown below the knob 313, the value of “THRESHOLD” is displayed.
When the dynamics screen 300 is displayed, the knob 313 is assigned to the rotary encoder 111 so that the rotary encoder 111 can set a parameter value corresponding to the knob.

The on switch 314 is a switch for toggle between enabling / disabling of the compressor 43, and this switching is performed when the on switch 314 is touched. The current state is displayed by caption.
The close button 315 is a button for accepting an instruction to close the dynamics screen and return to the input channel screen 200.
The copy button 316 is a button for receiving an instruction to copy the parameter values related to the attenuator 41 and the compressor 43 to the copy buffer in the channel where the cursor 320 is displayed.
The paste button 317 is a button for receiving an instruction to set the parameter value copied to the copy buffer as the parameter value regarding the attenuator 41 and the compressor 43 in the channel where the cursor 320 is displayed.

The default button 318 is a button for accepting an instruction to set parameter values relating to the attenuator 41 and the compressor 43 to predetermined initial values in the channel where the cursor 320 is displayed.
The format selection button 319 determines whether the display format of the dynamics screen is a format for displaying 8 channels as shown in FIG. 8, or a format for displaying 1 channel as shown in FIG. It is a button for accepting selection alternatively. In addition, display of which one is selected is also performed depending on the display color, darkness, pattern, and the like.

  Further, in the dynamics screen 300 as described above, a touch operation is performed on any one of the channel slots 310, or by pressing the selection switch 112 of any one of the channel strips 110 shown in FIG. The cursor 320 can be moved to the slot. Further, in the state where the dynamics screen 300 is displayed, the display for one channel is selected with the format selection button 319, or the graph display unit 312 in the ch slot 310 is touched to change the dynamics screen 300. As shown in FIG. 9, a dynamics screen 400 for displaying 1ch can be displayed.

This dynamics screen 400 is a screen for accepting the setting of all parameter values that can be set for the compressor 43 of the channel selected on the dynamics screen 300 or the channel where the cursor 320 was located.
In the state in which the dynamics screen 400 is displayed, five knobs 402 are assigned to the rotary encoder 111, and the rotary encoder 111 can set parameter values corresponding to the knobs. Further, an item to be set by the knob 402 can be switched by a switching button 401.

It should be noted that the back input channel screen 200 is displayed in a grayed out state on both the dynamics screen 300 and the dynamics screen 400, and even when there is a touch operation on this part, the dynamics screen is closed and the input channel screen is displayed. I'm trying to return to.
Although the dynamics screen has been described here, the digital mixer 10 prepares a similar screen for the channel name block 211 and the frequency characteristic block 212, and displays parameter values and accepts setting instructions. To be able to. For blocks for which such a screen is prepared, a downward triangle is displayed on the upper left of the block frame on the input channel screen 200 to indicate that.

  In the digital mixer 10 as described above, the characteristic point is that the operator of the assigned channel strip unit 101 is operated or touched while the initial value setting switch 102 and the standard value setting switch 103 shown in FIG. This is an operation when a screen block or an operator displayed on the screen 16 is touched.

Next, processing executed by the CPU 11 in relation to this point will be described. In addition, about the process regarding the function of other general digital mixers, what is necessary is just to employ | adopt suitably, Therefore Detailed description is abbreviate | omitted.
First, FIG. 10 shows a flowchart of processing when the rotary encoder 111 of the console 100 is operated.
When the rotary encoder 111 is operated, the CPU 11 starts the processing shown in the flowchart of FIG.

Then, during this operation, it is determined whether or not the initial value setting switch 102 and the standard value setting switch 103 are being pressed (S11).
In this case, if the rotary encoder 111 is operated alone, it is a parameter included in the operation data stored in the current data, and the operated rotary encoder among the knobs displayed on the touch screen 16. The value of the parameter set by the knob assigned to the parameter, that is, the parameter corresponding to the operated rotary encoder is changed according to the operation content (S12).

If the initial value setting switch 102 is pressed, the parameter value corresponding to the operated rotary encoder in the current memory is changed to a predetermined initial value (S14).
If the standard value setting switch 103 is pressed and the parameter corresponding to the operated rotary encoder is level data (S16), the value of the parameter in the current memory is changed to a predetermined standard value. (S17).
In any of these cases, the display on the screen is updated according to the change contents of the parameter values (S13, S15, S18), and the process is terminated.
On the other hand, if it is not level data in step S16, the processing is terminated as it is.
In the above processing, the CPU 11 functions as a value changing unit in step S12, an initializing unit in step S14, and a standardizing unit in step S17.

Next, FIG. 11 shows a flowchart of processing when the layer selection operation unit 104 performs a layer selection operation.
When the layer selection operation is performed by the layer selection operation unit 104, the CPU 11 starts the process shown in the flowchart of FIG.
Then, the selected layer is set as a control target by the assigned channel strip unit 101 (S21), and the selection switch 112 and the on switch in the assigned channel strip unit 101 are set according to the value of the parameter of the channel belonging to the selected layer. The on / off display 114 and the position of the knob 115 of the electric fader 18 are controlled (S22). Thereafter, the GUI screen related to the channels belonging to the selected layer is displayed on the touch screen 16 and the process is terminated (S23).
With the above processing, layers can be switched.

Next, FIG. 12 shows a flowchart of processing when the electric fader 18 of the console 100 is operated.
When the electric fader 18 is operated, the CPU 11 starts the process shown in the flowchart of FIG. Then, the value of the fader level corresponding to the operated fader in the selected layer is changed to a value corresponding to the position of the knob 115 after the operation (S31), and the process is terminated.
That is, when the electric fader 18 is operated, the value of the fader level is changed to a value corresponding to the position of the knob 115 regardless of whether the initial value setting switch 102 or the standard value setting switch 103 is pressed. Yes. In the above processing, the CPU 11 functions as a value changing unit.

Next, FIG. 13 shows a flowchart of processing when the ON switch 114 of the console 100 is operated.
When the on switch 114 is operated, the CPU 11 starts the process shown in the flowchart of FIG.
Then, during this operation, it is determined whether or not the initial value setting switch 102 and the standard value setting switch 103 are being pressed, as in step S11 of FIG. 10 (S41).
If the ON switch 114 is operated alone, the parameter value indicating ON / OFF of the ON switch 45 of the channel corresponding to the operated switch is inverted (S42), and according to the change contents of the parameter value. Then, turning on / off of the switch is controlled (S43), and the process is terminated. That is, in this case, processing related to the function of the normal ON switch 114 is performed.

On the other hand, if the initial value setting switch 102 is pressed, the fader level value of the channel corresponding to the operated on switch 114 is changed to a predetermined initial value (S44), and the standard value setting switch 103 is pressed. Then, the fader level value of the channel corresponding to the operated ON switch 114 is changed to a predetermined standard value (S46). In either case, the knob 115 of the electric fader 18 is moved to a position corresponding to the value after changing the fader level (S45, S47), and the process is terminated.
In this case, the ON switch 114 is the third operator, and the CPU 11 functions as a value changing unit in step S42, as an initializing unit in step S44, and as a standardizing unit in step S46.

Next, FIG. 14 shows a flowchart of processing when a touch operation is performed on the knob displayed on the touch screen 16.
When the CPU 11 detects a touch operation on the position of the knob being displayed on the touch screen 16, the CPU 11 starts the process shown in the flowchart of FIG. 14.
First, the knob with the touch operation and the corresponding knob of the other channel are assigned to the rotary encoder 111 (S51), and the cursor is moved to the knob with the touch operation and the corresponding knob of the other channel (S52). The cursor here indicates a knob assigned to the rotary encoder 111, such as the cursor 216 on the input channel screen 200, for example.

Thereafter, as in the case of step S11 in FIG. 10, it is determined whether or not the initial value setting switch 102 and the standard value setting switch 103 have been pressed at the time of the touch operation (S53).
And if it is a single touch operation here, a process will be complete | finished as it is.
On the other hand, if the initial value setting switch 102 has been pressed, the value of the parameter corresponding to the knob with the touch operation is changed to a predetermined initial value (S54).

If the standard value setting switch 103 is pressed and the parameter corresponding to the touched knob is level data (S56), the parameter value is changed to a predetermined standard value (S57). ).
In any of these cases, the display on the screen is updated in accordance with the change contents of the parameter value (S55, S58), and the process is terminated.
On the other hand, if it is not level data in step S56, the processing is terminated as it is.
In the above processing, the CPU 11 functions as an initialization unit in step S54 and as a standardization unit in step S57.

Next, FIG. 15 shows a flowchart of processing when a touch operation is performed on a block displayed on the touch screen 16.
When the CPU 11 detects a touch operation to the position of the block being displayed (frequency characteristic block 212, dynamics block 213, etc.) on the touch screen 16, the CPU 11 starts the processing shown in the flowchart of FIG.
First, as in the case of step S11 in FIG. 10, it is determined whether or not the initial value setting switch 102 and the standard value setting switch 103 have been pressed at the time of the touch operation (S61).

If the touch operation is a single touch operation, a GUI screen for displaying 8 channels related to the operated block is displayed on the touch screen 16 (S62), and the process ends.
On the other hand, if the initial value setting switch 102 is pressed, the values of all parameters related to the operated block, that is, all parameters that can be set on the GUI screen related to the operated block or its lower GUI screen, The initial value is changed (S63).

If the standard value setting switch 103 is pressed, the level data value among the parameters relating to the operated block is changed to a predetermined standard value (S65).
In any of these cases, the display on the screen is updated according to the change contents of the parameter values (S64, S66), and the process is terminated.
In the above processing, the CPU 11 functions as an initialization unit in step S63 and as a standardization unit in step S65.

  For example, when the frequency characteristic block 212 of a channel whose initial value setting switch 102 is being pressed is touch-operated, all parameters of the attenuator 41 and the equalizer 42 of that channel are initialized. That is, the frequency characteristic of the equalizer 42 becomes flat, and the level data of the level adjustment element that is in the middle is an initial value that is the same value as the standard value. On the other hand, when the frequency characteristic block 212 of the channel for which the standard value setting switch 103 is being pressed is touch-operated, the level data of the level adjustment elements included in the attenuator 41 and the equalizer 42 of that channel only become standard values The frequency characteristic of the equalizer 43 does not change.

Next, FIG. 16 shows a flowchart of processing when a touch operation is performed on a button displayed on the touch screen 16.
When the CPU 11 detects a touch operation on the position of the button being displayed on the touch screen 16, the CPU 11 starts the process shown in the flowchart of FIG. 16.
First, as in the case of step S11 in FIG. 10, it is determined whether or not the initial value setting switch 102 and the standard value setting switch 103 have been pressed at the time of the touch operation (S71).

And if it is a single touch operation here, the value of the parameter corresponding to the operated button is changed according to the operation content (in general, the button is turned on / off, or the button is selected from multiple options) (S72). If the initial value setting switch 102 is pressed, the value of the parameter corresponding to the operated button is changed to a predetermined initial value (S74). In any of these cases, the display on the screen is updated in accordance with the change contents of the parameter value (S73, S75), and the process is terminated.
If the standard value setting switch 103 has been pressed in step S71, the process is terminated as it is. Since the button is not used for setting level data, it is not necessary to determine whether or not the parameter controlled by the button is level data.
In the above processing, the CPU 11 functions as a value changing unit in step S72 and as an initializing unit in step S74.

In the digital mixer 10, the above-described processing is executed according to the user's operation, thereby realizing the controls and screen functions as described with reference to FIGS. 5 to 9 and at the same time the initial value setting described above. Functions of the switch 102 and the standard value setting switch 103 can also be realized.
That is, by operating the operator of the assigned channel strip unit 101 while pressing the initial value setting switch 102, or by touching the screen block or operator displayed on the touch screen 16, the operated operator And the parameter value corresponding to the block can be changed to a predetermined initial value, and the operator of the assigned channel strip unit 101 is operated while the standard value setting switch 103 is pressed, or is displayed on the touch screen 16. If the parameter corresponding to the operated operator or block is level data by touching the block or operator on the screen, the value of the parameter can be changed to a predetermined standard value. .

When attention is paid to the level operator, by operating the level operator (including touch operation) while pressing the standard value setting switch 103, the value of the parameter corresponding to the operated operator is set to a predetermined standard. It can be said that it can be changed to a value.
Thus, an arbitrary parameter can be set to an initial value by a simple operation, and level data can be set to either an initial value or a standard value by a simple operation.

Here, the initial value is a value that is a starting point for parameter editing of each component, and is a value that is fixedly determined by the manufacturer according to the characteristics of the device. For example, in the input channel 40 shown in FIG. 3, the attenuator 41 has a standard level, the equalizer 42 has a flat characteristic, the compressor 43 has a loose effect, and the on switch 45 and the send on switch 53 are turned on. The initial value of the corresponding parameter.
In addition, this initial value is generally determined so that an unexpectedly large level signal does not flow and the connected device is not damaged regardless of the initial value from any state. For this reason, the parameter for adjusting the level of the output signal from the input ch 40 and the output ch 81, 82 in the level data is set to a value that does not pass the signal as −∞ dB. Specifically, the initial value of the level of the fader 44 and the send level fader 52 of the input channel 40 and the fader of the output channel (not shown) is set to −∞ dB.

On the other hand, the standard value is a standard value of a parameter used when the digital mixer 10 outputs a signal, which is determined for level data in consideration of a state in which the apparatus is used. As such a value, for example, 0 dB which does not change the signal level is conceivable.
These initial values and standard values are both values that are often used in the editing process of parameter values. Generally, in the input channel 40 and the output channels 81 and 82, when a signal is not supplied to a certain path, −∞ dB is set as the output level control element, and when the signal is supplied, 0 dB is set as the first value for the time being. To do.

For example, when mixing signals from a plurality of input channels on a certain bus, first, all level data from all the input channels to that bus are set to −∞ dB, and from any input channel to the bus. Set so that no signal is input, then set all level data to the bus from the multiple input channels to be used to 0 dB so that the signal is supplied to the bus, and then monitor the signal on the bus However, a procedure is adopted in which the level data of a plurality of input channels to be used is adjusted.
Therefore, as with the digital mixer 10, the level data can be set to either the initial value or the standard value with a simple operation, so that the parameter editing operability can be greatly improved.

Note that when an operator other than the operator corresponding to the level data is operated while pressing the standard value setting switch 103, it is preferable not to change the parameter value in the current memory. In this way, it is possible to prevent a situation in which an inappropriate value is set due to an erroneous operation, an unexpected signal is output, and the apparatus is damaged, and the user can operate with peace of mind.
In addition, as described with reference to FIG. 15, the operability can be further improved if the setting in units of blocks is possible. Even in this case, for parameters other than the level data, if the values are not changed according to the operation of the operator while pressing the standard value setting switch 103, the user can operate with confidence.

In the digital mixer 10, the operation of setting the fader level corresponding to the electric fader 18 to the initial value or the standard value is performed by operating the knob 115 of the electric fader 18 together with the initial value setting switch 102 or the standard value setting switch 103. This is not the case, but is performed when the ON switch 114 is operated together with the initial value setting switch 102 and the standard value setting switch 103.
This is because when the value of the fader level is changed, the knob 115 of the electric fader 18 is moved to a position corresponding to the value after the change, so that the fader level is initialized when the knob 115 is operated. If the value or the standard value is set, the knob 115 is driven and moved to a position corresponding to the changed value at that time, which causes an unnatural operation. .

When there are a plurality of signal processing elements for adjusting the level of the level data on the path from the input to the output of the signal, the level of only one of these is set to −∞ dB, and the signal is passed. The goal of avoiding it is achieved. Accordingly, the setting of the initial value of the level data may be set to -∞ dB only for one signal processing element per signal processing path, and 0 dB for other signal processing elements. It is done.
Therefore, the initial value and the standard value may be the same value for some level data. However, it is not necessary to align the initial value and the standard value for “other signal processing elements”.

This is the end of the description of this embodiment. However, the configuration of the apparatus, specific processing contents, screen display contents, range of parameters handled as level data, contents of initial values and standard values, etc. are as described above. Of course, it is not restricted to what was demonstrated with the form.
For example, in the above-described embodiment, the example in which the initial value is −∞ dB and the standard value is 0 dB has been described for the level data, but values other than these may be used. That is, the initial value may be a value such as −10 dB or −20 dB, and the standard value may be a value such as −10 dB, −5 dB, or +5 dB.
In particular, the standard value may be freely determined by the user for each parameter.

In the above-described embodiment, the example in which the parameter value is not changed when an operator other than the level operator is operated while the standard value setting switch 103 is pressed has been described. Is not required. For example, according to the operation of the operator, the parameter value can be changed in the same way as when the standard value setting switch 103 is not pressed, or the standard values that are the same as the initial values are prepared for portions other than the level data. Corresponding measures such as changing the parameter value to such a standard value according to the operation of the child are also conceivable.
Further, the functions of the initial value setting switch 102 and the standard value setting switch 103 may be provided together with operators having other functions so that they can be used as operators of a plurality of functions. Furthermore, the functions of the initial value setting switch 102 and the standard value setting switch 103 may be assigned to an arbitrary or specific operator.

Here, as described with reference to FIG. 13, the example in which the on switch 114 is the third operator has been described. However, the electric fader such as the selection switch 112 or the CUE switch not illustrated in FIG. Of course, another operator corresponding to 18 may be used as the third operator.
Further, in the processing shown in FIG. 14, only when the touch operation is performed alone, the assignment of the rotary encoder in step S51 and the movement of the cursor in step S52 may be performed.
Further, in step S62 in FIG. 15, instead of the GUI screen for displaying 8 channels as shown in FIG. 8, a GUI screen for displaying 1 channel as shown in FIG. 9 may be displayed. .

  In addition to a single digital mixer, the present invention can also be applied to a device in which an acoustic signal processing device such as a hard disk recorder, electronic musical instrument, karaoke device, sound source device, MIDI sequencer, etc. has a mixer function. Of course. Of course, the present invention can also be applied to a case where a suitable software is executed on a PC to function as a mixer.

As is apparent from the above description, according to the acoustic signal processing device of the present invention, the value of the parameter indicating the level can be set to the initial value with a simple operation and frequently used other than the initial value. The value to be set can be set with a simple operation.
Therefore, a digital mixer with high operability can be provided.

It is a block diagram which shows the structure of the digital mixer which is embodiment of the acoustic signal processing apparatus of this invention. It is a figure which shows the structure of DSP shown in FIG. 1 in detail. FIG. 3 is a diagram illustrating a configuration of a part related to input of signals from each input channel to an ST bus and a MIX bus in the DSP illustrated in FIG. 2. It is a figure which shows schematic structure of the console in the digital mixer shown in FIG. FIG. 5 is a diagram illustrating a detailed configuration of an assigned channel strip unit illustrated in FIG. 4.

It is a figure which similarly shows the detailed structure of a layer selection operation part. FIG. 5 is a diagram illustrating a display example of an input channel screen displayed on the touch screen illustrated in FIG. 4. It is a figure which shows the example of a display of the dynamics screen which similarly displays for 8ch. It is a figure which shows the example of a display of the dynamics screen which similarly displays for 1ch. It is a flowchart of the process performed when CPU of the digital mixer shown in FIG. 1 operates a rotary encoder.

It is a flowchart of a process when a layer selection operation is similarly made by the layer selection operation part. It is a flowchart of a process when an electric fader is operated similarly. It is a flowchart of a process when an ON switch is operated similarly. It is a flowchart of a process when there is a touch operation similarly to the knob displayed on the touch screen. It is a flowchart of a process when there is a touch operation similarly to the block displayed on the touch screen. It is a flowchart of a process when there is a touch operation similarly to the button displayed on the touch screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Digital mixer, 11 ... CPU, 12 ... Flash memory, 13 ... RAM, 14 ... External apparatus I / O, 15 ... PCI / O, 16 ... Touch screen, 17 ... Other display devices, 18 ... Electric fader, 19 ... Other operators, 20 ... Waveform I / O, 21 ... DSP, 22 ... System bus, 100 ... Console, 101 ... Assigned channel strip section, 102 ... Initial value setting switch, 103 ... Standard value setting switch, 104 ... Layer selection operation Part, 105 ... various controls

Claims (3)

A current memory for storing operation data including a plurality of level data;
Signal processing means for processing and outputting an input acoustic signal based on the operation data stored in the current memory;
A level controller for setting each level data;
First and second operators different from the level operator;
When the level operator is operated when neither the first operator nor the second operator is operated, the level data value in the current memory corresponding to the level operator is set to the level operator. Value changing means for changing according to the operation amount;
An initialization unit that changes a value of level data in the current memory corresponding to the level operator to a predetermined initial value when the level operator is operated while operating the first operator;
When the level operator is operated while operating the second operator, standardization means is provided for changing the level data value in the current memory corresponding to the level operator to a predetermined standard value. An acoustic signal processing apparatus characterized by that. A current memory for storing operation data including a plurality of level data;
Signal processing means for processing and outputting an input acoustic signal based on the operation data stored in the current memory;
A setting operator for setting data included in the operation data;
First and second operators different from the setting operator;
When the setting operator is operated when neither of the first and second operators is operated, the value of the data in the current memory corresponding to the setting operator is changed to the operation of the setting operator. Value changing means to change according to the content;
Initialization means for changing a value of data in the current memory corresponding to the setting operator to a predetermined initial value when the setting operator is operated while operating the first operator;
When the setting operator is operated while operating the second operator, if the data corresponding to the setting operator is data other than level data, the value of the data in the current memory is changed. And, if the data corresponding to the operated setting operator is level data, there is provided a standardization means for changing the value of the data in the current memory to a predetermined standard value. Signal processing device. A current memory for storing operation data including a plurality of level data;
Signal processing means for processing and outputting an input acoustic signal based on operation data stored in a current memory; and
An electric fader for setting each level data;
First and second operating elements different from the electric fader;
A third operator corresponding to the electric fader and different from the first and second operators;
When the third operating element is operated while operating the first operating element, the level data value in the current memory corresponding to the third operating element is changed to a predetermined initial value. Initializing means for moving the knob of the electric fader corresponding to the third operator to a position corresponding to the initial value;
When the third operating element is operated while operating the second operating element, the level data value in the current memory corresponding to the third operating element is changed to a predetermined standard value. An acoustic signal processing apparatus comprising: a standardization unit that moves the knob of the electric fader corresponding to the third operator to a position corresponding to the standard value.

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