JP2016040964A - Acoustic signal processing device and parameter adjustment method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an acoustic signal processing device which enables a 1-channel or a 2-channel parameter editing screen to be opened or switched from a screen showing multiple channel parameter setting status by a simple operation.SOLUTION: A display is designed to selectively display one of: a ch strip screen which lists a parameter setting status on all channels assigned to a plurality of channel strips in a ch strip section; a 1_ch screen which shows a plurality of parameters on any one channel; and a 2_ch screen which shows a plurality of parameters on each of any two channels. The 1_ch screen can be displayed from the ch strip screen by a single operation with one edit button, and the 2_ch screen can be displayed by a simultaneous operation with two edit buttons. The 2_ch screen allows a user to set parameters while comparing the two channels.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an acoustic signal processing device and a parameter adjustment method, and in particular, a technique that enables a 1ch or 2ch parameter editing screen to be opened with a simple operation from a screen displaying parameter setting statuses of a large number of channels (ch). About.

  An acoustic signal processing device such as a digital mixer has many channels for processing many series of acoustic signals. Further, a ch strip screen is provided as a screen for displaying and setting various parameters of those channels (for example, FIG. 6 of Patent Document 1 and paragraphs 0029 to 0036). The channel strip screen is a screen that displays a list of parameter setting states for a predetermined number of channels (for example, 8 channels and 16 channels). Further, by performing a predetermined operation from the state in which the ch strip screen is displayed, a window for finely editing the parameters of each component block (equalizer, dynamics, etc.) of each input channel can be displayed in a pop-up ( For example, FIG. 9 to FIG. 11 of Patent Document 1.

  On the other hand, a so-called digital audio workstation (DAW) that realizes various functions for music production (for example, hard disk recording function, MIDI data and audio data creation / editing function, mixing function, sequencer function, etc.) has been known. (See Non-Patent Document 1). DAW is realized, for example, by installing and executing predetermined software on a general-purpose personal computer (PC). The DAW also has a channel strip screen that displays parameters for a plurality of channels. When the [Edit] button of the channel strip of any one channel displayed on the channel strip screen is operated, the channel 1 is displayed. The parameter editing window for finely editing the parameters is opened.

Japanese Patent No. 4210951

"Cubase SX / SL thorough operation guide", Ritto Music, July 31, 2004

  In the window displayed in the pop-up of Patent Document 1 and the parameter editing window of Non-Patent Document 1, the parameters for one channel can be operated. For example, the operation is performed while comparing the parameters for 2 channels in order to balance the channels. You may want to Some DAWs can display any number of parameter editing windows for any channel at the same time. However, this is too general, and eventually the operator can arrange and operate each parameter editing window for multiple channels with a mouse. The operation is complicated. Therefore, there is a demand to be able to switch between a channel strip screen that displays the parameter setting status of a plurality of channels, an arbitrary 1 channel parameter editing screen, and an arbitrary 2 channel parameter editing screen with a simpler operation. is there.

  SUMMARY OF THE INVENTION An object of the present invention is to enable opening and switching of a 1ch or 2ch parameter editing screen by a simple operation from a screen displaying a parameter setting status of many channels in an acoustic signal processing device. .

  In order to achieve the above object, an invention according to claim 1 includes a channel processing unit including a plurality of channels for performing signal processing on an acoustic signal based on a parameter value for each channel, and a plurality of channel strips. The channel strip section includes a first setting operator, a second setting operator, and an edit button, and the plurality of channel strips are divided into a first group and a second group. One of the channels of the channel processing unit is assigned to each channel strip of the channel strip unit and the channel strip unit, and the channel strip unit is assigned to the channel strip according to the operation of the second setting operator of the channel strip. Adjust the parameter value of the selected channel. In response to simultaneous operation of the channel parameter adjusting means and the edit buttons of any two channel strips in the first group and the second group, of the two channels assigned to the channel strips. A plurality of parameters of the first channel are displayed in association with the channel strip of the first group, and a parameter of the second channel of the two channels is displayed in association with the channel strip of the second group 2 First display control means for controlling a predetermined display so as to display a channel screen, and each of a plurality of parameters of the first channel displayed on the two-channel screen is the first of the channel strip portions. Assigned to the first setting operator of each channel strip of the group, before Each of the plurality of parameters of the second channel displayed on the two-channel screen is assigned to the first setting operator of each channel strip of the second group in the channel strip portion, and the first setting operator And a first parameter adjusting means for adjusting a parameter value assigned to each first setting operator in accordance with an operation.

  The invention according to claim 2 is the acoustic signal processing device according to claim 1, wherein in response to a single operation of the edit button of any one channel strip in the first group and the second group. A second display for controlling the display unit to display a one-channel screen for displaying a plurality of parameters of one channel assigned to the channel strip in association with the channel strips of the first and second groups. The control means and each of the plurality of parameters of the one channel displayed on the one-channel screen are assigned to the first setting operator of each channel strip of the first and second group of channel strip portions. The parameter value assigned to each first setting operator is adjusted according to the operation of each first setting operator. Characterized in that it comprises a second parameter adjustment means.

  The invention according to claim 3 is the acoustic signal processing device according to claim 2, wherein the second display control means further includes the second display unit when the two-channel screen is displayed on the display. 1 assigned to the channel strip in response to the operation of the edit button of any one of the channel strips other than the two channel strips assigned to the first and second channels displayed on the channel screen. The display is controlled to display the one-channel screen that displays a plurality of parameters of each channel in association with the channel strips of the first and second groups.

  The invention according to claim 4 is the acoustic signal processing device according to any one of claims 1 to 3, wherein when the two-channel screen is displayed on the display, the two-channel screen is displayed. Parameters of all channels assigned to a plurality of channel strips of the channel strip portion in response to an operation of an edit button provided in any one of the two channel strips to which the first and second channels are assigned A third display control means for controlling the display so as to display a channel strip screen that displays a list of the setting states in association with the channel strips of the first and second groups, and display of the channel strip screen In accordance with the channel assignment by the channel parameter adjusting means. One parameter of any channel of the channel processing unit is assigned to the first setting operator of each channel strip of the channel strip unit, and each first setting operation is performed according to the operation of each first setting operator. And third parameter adjusting means for adjusting the value of the parameter assigned to the child.

  The invention according to claim 5 is a channel processing unit including a plurality of channels for performing signal processing on an acoustic signal based on a parameter value for each channel, and a channel strip unit including a plurality of channel strips. One channel strip has a first setting operator, a second setting operator, and an edit button, and a channel strip portion in which the plurality of channel strips are divided into a first group and a second group. The acoustic signal processing apparatus includes a channel strip of the channel strip unit, and assigns one of the channels of the channel processing unit to each channel strip, and the channel strip is assigned to the channel strip in accordance with the operation of the second setting operator of the channel strip. Adjust the parameter value of the selected channel. In response to the simultaneous operation of the channel parameter adjustment procedure and the edit buttons of any two channel strips in the first group and the second group, of the two channels assigned to the channel strips. A plurality of parameters of the first channel are displayed in association with the channel strip of the first group, and a parameter of the second channel of the two channels is displayed in association with the channel strip of the second group 2 A first display control procedure for controlling a predetermined display so as to display a channel screen, and each of a plurality of parameters of the first channel displayed on the two-channel screen is the first of the channel strip portions. Assigned to the first setting operator of each channel strip in the group, Each of the plurality of parameters of the second channel displayed on the two-channel screen is assigned to the first setting operator of each channel strip of the second group in the channel strip portion, and each first setting operator is assigned. And a first parameter adjustment procedure for adjusting a parameter value assigned to each first setting operator in accordance with the operation.

  According to the present invention, by a simple operation of the edit button prepared for each channel strip, a screen of a desired type of a desired channel among the channel strip screen, the 1 channel screen, and the 2 channel screen is controlled. You can selectively open and edit the parameters of that channel. In particular, on the 2_ch screen, the parameter values of any two channels can be adjusted while comparing with each other.

The block diagram which shows the hardware constitutions of the digital mixer which is an acoustic signal processing apparatus of embodiment of this invention External view showing connection of digital mixer and external display Diagram showing screen example of display unit and configuration on operation panel of digital mixer Block diagram showing functional configuration of mixing process Block diagram showing an example of a functional configuration for one channel of input channels Diagram showing a display example of 1ch_ screen The figure which shows the example of a display of 2ch_ screen Diagram showing screen mode transition Flow chart of layer selection process and fader operation process A flowchart showing processing when the knob 311 is operated. A flowchart showing processing when the edit button 312 is turned on (pressed) and turned off A diagram showing a configuration example in which a DAW is operated on a PC and an external display and a control surface are connected to the PC.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a hardware configuration of a digital mixer 100 which is an acoustic signal processing apparatus according to an embodiment of the present invention. A central processing unit (CPU) 101 is a processing device that controls the operation of the entire mixer. The flash memory 102 is a non-volatile memory that stores various programs executed by the CPU 101 and various data. A random access memory (RAM) 103 is a volatile memory used for a load area and a work area of a program executed by the CPU 101. A display input / output interface (I / O) 104 is an interface for connecting an external display (display) 105. The other I / O 106 is an interface for connecting other various devices. The electric fader 107 is an operator provided on the operation panel for setting various parameter values. The operation element 108 is a variety of operation elements (such as buttons other than the electric fader) provided on the operation panel and operated by the user. The waveform I / O 109 is an interface for exchanging acoustic signals with an external device. The signal processing unit (DSP) 110 executes various microprograms based on instructions from the CPU 101 to perform mixing processing, effect applying processing, volume level control processing, and the like of the acoustic signal input via the waveform I / O 109. And output the processed acoustic signal via the waveform I / O 109. The bus 120 is a bus line that connects these parts, and is a generic term for a control bus, a data bus, and an address bus.

  FIG. 2 is an external view showing a state in which the digital mixer 100 of FIG. 1 and the external display 105 are connected. Although not shown, an electric fader 107 and an operator 108 are arranged on the operation panel 201 on the upper surface of the digital mixer 100. An arbitrary size display can be connected as the display unit 105. However, as shown in FIG. 3 to be described later, in order to perform display corresponding to the number of ch strips provided on the operation panel 201, it is preferable to connect a display having a certain size. Further, as shown in FIG. 3, display 105 is preferably arranged so that each ch strip on operation panel 201 is positioned below the display of each ch strip on the ch strip screen.

  FIG. 3 shows a screen example of the display 105 and the configuration on the operation panel 201 of the digital mixer 100 in the present embodiment. Reference numeral 301 denotes an example of a screen displayed on the display device 105, and 302 shows the appearance of various controls arranged on the operation panel 201.

  The operation panel is provided with a ch strip portion including 16 ch strips 303-1 to 303-16. The eight on the left side are called ch strip # 1 group, and the eight on the right side are called ch strip # 2 group. One channel strip, for example, 303-1 includes a rotary encoder (knob) 311, an edit button 312, a SEL button 313, an ON button 314, and an electric fader 315.

  The knob 311 is a parameter adjustment rotary encoder whose function is switched according to the contents displayed on the upper screen 301. The edit button 312 is a button used when displaying a 1_ch screen or a 2_ch screen, which will be described in detail later. The SEL button 313 is a button used when selecting a channel assigned to the channel strip 303-1. The ON button 314 is a button for turning on / off a channel to which the channel strip 303-1 is assigned. The electric fader 315 is a fader for adjusting the volume level (signal level) of the assigned channel. The other channel strips 303-2 to 303-16 have the same configuration. The component elements 311 to 315 of each ch strip are also expressed by adding branch numbers from -1 to -16. For example, the knob of the ch strip 303-3 is indicated by the number 311-3.

  Reference numeral 305 denotes a button group for moving the pointer of the parameter table PT (a parameter page designation button group from another viewpoint), and 306 denotes a button group for designating a parameter type (genre) to be displayed. This will be described in detail later.

  In the screen example 301, reference numeral 321 denotes a ch strip screen (entire), 322 denotes an all ch meter display screen, and 323 denotes a main meter display screen. The ch strip screen 321 is an array of ch parameter display areas 321-1 to 321-16 corresponding to the ch strips 303-1 to 303-16. In one ch parameter display area, for example, 321-1, the setting state of various parameters related to the ch assigned to the corresponding ch strip 303-1 is displayed. When the setting state of the parameter assigned to the knob 311 is displayed, the parameter display is highlighted. The same applies to the other ch parameter display areas 321-2 to 321-16. On the all channel meter display screen 322, a meter indicating the signal level for each of all channels is displayed. The main meter display screen 323 displays a meter indicating the level of main signals such as the main output signal of the mixer, a scene control state, and the like.

  FIG. 4 is a block diagram showing a functional configuration of mixing processing realized by this mixer. Reference numeral 401 denotes an input obtained by converting an analog acoustic signal input from a microphone or the like into a digital signal. Reference numeral 402 denotes an input of a digital acoustic signal. Each of these inputs can be provided in a plurality (the number of which has an upper limit according to the apparatus configuration). The input patch 403 performs arbitrary connection for connecting the above-described input to the input channel 404. The connection setting can be arbitrarily performed by the user while viewing a predetermined screen. The input channel 404 is single and has 48 channels. Each input channel 404 performs various signal processing such as level control and frequency characteristic adjustment processing on the input signal based on the current value of the set parameter. The signal of each input channel 404 can be output to each of the 24 MIX buses 406, and the transmission level can be set independently.

  Each of the 24 buses of the MIX bus 406 mixes the signal input from the input channel 404. The mixed signal is output to the output channel 407 corresponding to the MIX bus. Each channel is associated with the MIX bus 406 and the output channel 407 in a one-to-one correspondence. Each output channel performs various signal processing on the output side based on the current value of the set parameter. The output of the output channel 407 is input to the output patch 408. The output patch 408 performs arbitrary connection from the output channel 407 to the analog output 409 or the digital output 410. The connection setting can be arbitrarily performed by the user while viewing a predetermined screen.

  The input units 401 and 402 and the output units 409 and 410 are realized by the waveform I / O 109 in FIG. The other parts 403 to 408 are realized by the DSP 110 executing a predetermined microprogram. The micro program is set by the CPU 101 sent to the DSP 110. The coefficient data used when the DSP 110 executes the microprogram is also sent from the CPU 101 to the DSP 110 for setting.

  FIG. 5 is a block diagram illustrating a functional configuration example for one channel of the input channel 404 described in FIG. A digital signal is input from the input patch 403 to the input channel. The effect 1 (501) and the effect 2 (502) are effects (insertion or plug-in) that can be arbitrarily selected and assigned by the user from the built-in effects prepared in the flash memory 102 in advance. The effect data of the selected built-in effect is sent to the DSP 110, and the DSP 110 operates based on the effect data, whereby the effects 1 and 2 are realized. An EQ 503 is an equalizer that performs frequency characteristic adjustment processing. Comp 504 is a compressor that performs automatic gain adjustment processing. The fader 505 is a part that adjusts the signal level according to the set position of the electric fader 107 (315 in FIG. 3). The mute 506 is a part that performs mute according to the setting state of the mute switch. The output 507 is a part for adjusting a transmission level to each MIX bus 406 when the signal of the input channel is output to each MIX bus 406. Although the input channel has been described above, the functional configuration of the output channel is the same as that except that the output 507 outputs a signal only to the output patch 408, and the transmission level is not adjusted there.

  Each part of FIG. 4 and FIG. 5 has various parameters. The current value (current data) of the parameter is stored in a current memory provided in the flash memory 102 or the RAM 103. The signal processing setting of each unit and the setting of the panel state in the mixer 100 are performed based on current data stored in the current memory. That is, the operation of each part of the mixer 100 can be controlled by setting / changing the values of various parameters on the current memory. Current data of all parameters of the mixer 100 is stored in the current memory, and the current data in the current memory depends on the contents of various operations performed using the operators 107 and 108, the display 104, and the like. It is changed (adjusted). Each of the parameters stored in the current memory has a unique ID and name that do not specify ch. That is, the same parameter of the same block of two different channels has the same ID and name.

  FIG. 6 shows a display example of the 1ch_screen. When the ch strip screen 321 of FIG. 3 is displayed, when the edit button 312 of any one of the ch strips 303 is pressed, a 1ch_ screen relating to the ch assigned to the ch strip is displayed. The 1ch_screen 601 is displayed in a pop-up form in the area where the ch strip screen 321 is displayed. The upper all channel meter display screen 322 and the right main meter display screen 323 are continuously displayed.

  The 1ch_screen is a screen for finely displaying and editing a specified type of parameters of a specified channel. The channel to be edited is a channel assigned to one channel strip in which the edit button 312 is pressed as described above. The parameter type (genre) to be edited is designated by the button group 306 in FIG. Specifically, the button group 306 is any one of (1) routing, (2) pan, (3) send, (4) equalizer, (5) compressor, (6) plug-in 1, and (7) plug-in 2. This is a group of buttons for selecting one of them. It is assumed that any one button is always in an on state (a state in which a parameter type corresponding to the button is specified), and when an off button in the button group 306 is pressed, the button that has been on is turned off. The pressed button is turned on, and the genre corresponding to the pressed button is switched to the designated state.

  A 1_ch screen 601 in FIG. 6 is an example of a screen in the case where the button for designating (4) equalizer in the button group 306 is on. Reference numeral 611 denotes a graph showing the current setting state of the equalizer in the channel, where the horizontal axis indicates the frequency and the vertical axis indicates the attenuation level of each frequency. Reference numerals 612-1 to 612-16 are display areas for the parameter name “Par” and the set value “Val” of each frequency band (band). For example, in the case of a 31-band equalizer, the display area 612-1 displays the frequency “20 Hz” as the name “Par” of the band 1 parameter, and the level value (for example, “−12.5” as the set value “Val”). "dB", "3dB", "0dB", ...) are displayed. In the display area 612-2, the frequency “25Hz” is displayed as the name “Par” of the parameter of the band 2, and the level value is displayed as the set value “Val”. In the display area 612-3, the frequency “31.5 Hz” is displayed as the name “Par” of the parameter of the band 3, and the level value is displayed as the set value “Val”. The same applies hereinafter. These display areas 612-1 to 612-16 correspond to the knobs 311-1 to 311-16 of the operation panel, respectively, and the level value of band 1 is set by the knob 311-1 and the band 311 is set by the knob 311-2. The level value of 2 can be adjusted respectively. In particular, the user can change the parameter value by operating the knob 311 while visually recognizing the parameter name. Although this example is a 31-band equalizer, since there are 16 ch strips 303, in the initial state in which the 1_ch screen 601 is popped up, the level values of the bands 1 to 16 are displayed in the display areas 612-1 to 612. 16 in order, and can be adjusted with the knobs 311-1 to 311-16, respectively.

  The level values of the bands 17 to 31 are displayed by specifying the next page with the button group 305. The button group 305 is a button group for designating pages such as the first page, the second page, and so on. In the initial state in which the 1_ch screen 601 is pop-up displayed, the first page is designated, and when a button for designating another page is pressed, the page is switched to that page. Accordingly, when the second page designation button is pressed while the 1_ch screen 601 is displayed, the parameter name and level value of the band 17 are displayed in the display area 612-1 and the band 18 is displayed in the display area 612-2. The parameter name and level value of each band on the second page are displayed as follows: parameter name and level value, etc., the level value of band 17 is indicated by knob 311-1 and the level value of band 18 is indicated by knob 311-2. Can be adjusted individually. In this example, since there are 31 bands, when the second page is displayed, nothing is displayed in the display area 612-16, and the operation of the knob 311-16 is invalid.

  When the 1_ch screen 601 is popped up, the function of each knob 311 changes according to the 1_ch screen 601 as described above, but the functions of the other operators 312 to 315 of the ch strip 303 do not change. For example, by operating the fader 315-1, the level of the channel assigned to the channel strip 303-1 can be adjusted.

  Although an example of a 31-band equalizer has been described here, the same applies when another genre is selected by the button group 306. For example, (3) when the edit button 312 of any one of the ch strips 303 is pressed while the send is selected, the send level from the ch assigned to the ch strip 303 to each destination (output destination) is changed. A 1_ch screen for adjustment is displayed. First displayed is the send level to the 16 destinations of the first page. That is, in the display areas 612-1 to 612-16 in FIG. 6, the destination bus names (for example, “MIX1”, “MIX2”, “MIX3”,...) Are sequentially displayed as the name “Par”. A send level value (for example, “−∞ dB”, “−6 dB”, “−20 dB”,...) To each destination is displayed as “Val”. The user can adjust the send level to each destination by operating the knob 311 while visually checking each destination. Further, the button group 305 can be used to switch to the second and subsequent pages and adjust the send level to the output destination on the first and subsequent pages. In the case of the send level, a button arranged in the vicinity of each knob 311 can be used to turn on / off a send-on parameter to a corresponding destination bus (that is, a signal is supplied to the bus). It is good to be able to control whether or not).

  When (6) plug-in 1 is selected by the button group 306, a 1_ch screen 601 for displaying and editing a plurality of parameters related to the insertion assigned to the effect 1 (501) in FIG. And can be adjusted by the knob 311. (7) When plug-in 2 is selected, a 1_ch screen 601 for displaying and editing a plurality of parameters related to the insertion assigned to effect 2 (502) in FIG. become able to.

  FIG. 7 shows a display example of the 2ch_screen. When the ch strip screen 321 of FIG. 3 is displayed, when the edit buttons 312 of any two ch strips 303 are simultaneously pressed, a 2ch_ screen relating to the two channels assigned to those ch strips is displayed. The The 2ch_screen includes a left screen 701 and a right screen 702. The 2ch_screens 701 and 702 are displayed in a pop-up form in the area where the ch strip screen 321 is displayed. The upper all channel meter display screen 322 and the right main meter display screen 323 are continuously displayed.

  The 2ch_screen is a screen for simultaneously displaying and editing a specified type of parameters of two specified channels simultaneously. As described above, the channels to be edited are the two channels assigned to the two channel strips whose edit buttons 312 are simultaneously pressed. It is arbitrary whether the two channels are assigned to the left screen 701 or the right screen 702. Here, the smaller channel number is assigned to the left side, and the other is assigned to the right side. The point that the parameter type to be edited is specified by the button group 306 in FIG. 3 is the same as the 1ch_screen.

  The 2_ch screens 701 and 702 in FIG. 7 are screen examples in the case where the button specifying the (4) equalizer in the button group 306 is in the on state. As can be seen from the figure, the configuration of the left screen 701 and the right screen 702 of the 2_ch screen is the same as that of the 1ch_screen 601 of FIG. The name “Par” and the set value “Val” are also displayed in each of the display areas 712-1 to 712-8 of the left screen 701 and the display areas 722-1 to 722-8 of the right screen 702. FIG. It is the same. However, the number of parameters to be displayed and edited is 16 on the 1ch_screen 601 and 8 on the left screen 701 and the right screen 702 of the 2_ch screen. Therefore, on the left screen 701, the bands 1 to 8 of the channel to be edited are knobs 311-1 to 311-8, and on the right screen 702, the bands 1 to 8 of the channel to be edited are knobs 311-9 to 311-16. Each can be adjusted. As for the band 9 and the subsequent pages, the page is designated and displayed / edited by the button group 305 in the same manner as the 1ch_screen 601. In this example, since the number of bands is 31, all the bands can be adjusted by switching the first to fourth pages. Note that different pages cannot be displayed on the left screen 701 and the right screen 702.

  6 is the same as the 1ch_screen 601 in FIG. 6 in that the functions of the other operators 312 to 315 of the ch strip 303 are not changed when the 2_ch screens 701 and 702 are pop-up displayed.

  FIG. 8 is a table showing screen mode transitions in the digital mixer of this embodiment. When the ch strip screen is displayed, it is called a ch strip mode. When the 1_ch screen is displayed, it is called a 1_ch mode. When a 2_ch screen is displayed, it is called a 2_ch mode. The “before” column in FIG. 8 indicates the mode before the transition, the “after” column indicates the mode after the transition, and the table shows the operation for mode transition in that manner.

  When the edit button 312 of any one ch strip is pressed in the state of the ch strip mode, the mode changes to the 1_ch mode that displays the 1_ch screen related to the ch assigned to that ch strip, and the edit button of any two ch strips When 312 is pressed at the same time, a transition is made to a 2_ch mode in which a 2_ch screen relating to the two channels assigned to those ch strips is displayed. When the edit button 312 of the channel being edited is pressed in the 1_ch mode, the channel returns to the ch strip mode. When the edit button 312 of a channel other than the channel being edited is pressed in the 1_ch mode, there is no change to the 1_ch mode, but the display edit target channel of the displayed 1_ch screen is a new edit button 312. It is changed to the pressed channel. When the arbitrary 2ch edit buttons 312 are simultaneously pressed in the 1_ch mode, the 2_ch mode for displaying the 2_ch screen related to those 2ch is displayed. When one of the 2ch editing buttons 312 being edited is pressed in the 2ch mode, the channel strip mode is restored. Pressing any 1ch edit button 312 that is not being edited while in 2ch mode will enter 1ch mode to display the 1ch screen related to that channel, and simultaneously pressing any 2ch edit button 312 will result in 2ch screens related to those 2ch. 2_ch mode is displayed.

  When the genre is switched by the button group 306 in the 1_ch mode or the 2_ch mode, the screen is switched to the 1_ch screen or the 2_ch screen related to the newly specified genre. In this case, the displayed page is initialized to the first page. For example, when the second page is displayed on the equalizer 1_ch screen and the genre is switched to the compressor by the button group 306, the first page of the compressor 1_ch screen is displayed.

  Next, the operation of the digital mixer of this embodiment will be described with reference to the flowcharts of FIG. Before describing the flow, the variables will be described. Note that a symbol indicating a variable represents the variable and also represents data stored in the variable.

  (1) AC (i): An array for storing the channel IDs assigned to the 16 channel strips 303-1 to 303-16. Each ch strip is specified in order from the left side with a subscript i (i is an integer from 0 to 15). For example, AC (0) stores the channel ID assigned to the ch strip 303-1, and AC (1) stores the channel ID assigned to the channel strip 303-2.

  (2) DM: Indicates the display mode. 0 indicates the ch strip mode, 1 indicates the 1_ch mode, and 2 indicates the 2_ch mode.

  (3) DC1 and DC2: Variables that store edit target channels (display channels) of a screen that is pop-up displayed in the 1_ch mode or the 2_ch mode. In the channel strip mode, both DC1 and DC2 are null. In the 1_ch mode, the editing target channel of the 1_ch screen is stored in DC1, and DC2 is null. In the 2_ch mode, the editing target channel of the left screen of the 2_ch screen is stored in DC1, and the editing target channel of the right screen is stored in DC2. Of the 16 edit buttons 312 on the operation panel 201, the edit button 312 of the channel strip 303 to which the channel stored as the channel to be edited is assigned to the variables DC1 and DC2 is lit, and the other channel strips are displayed. The edit button 312 303 is turned off. As a result, the user can visually recognize which edit button is the “edit button for the channel being edited”, and efficiently performs the operation of “pressing the edit button for the channel being edited” in the table of FIG. be able to.

  (4) PT: A parameter table in which the ID of each parameter of the currently selected genre is stored in order. This is an array provided for each genre that can be specified by the button group 306. For example, since the equalizer parameters are composed of 31 parameters that are the attenuation levels of the bands 1 to 31, IDs for identifying the 31 parameters are sequentially set in the parameter table PT corresponding to the equalizer. deep. That is, the parameter ID of “Attenuation level of band 1” is set to PT (0), the parameter ID of “Attenuation level of band 2” is set to PT (1),..., “Attenuation level of band 31” is set to PT (30). Each parameter ID is set. Actually, a parameter table is prepared for each genre, but in the following description, the parameter table will be described using only one symbol PT. That is, when simply referring to the parameter table PT, it is assumed that the parameter table of the genre currently designated by the button group 306 is shown. The parameter table PT may be a table that can be edited by the user, or may be a separate table for each mode.

  (5) SMP: Strip mode pointer. A variable used as a subscript of the parameter table PT, and stores a subscript value referring to the parameter ID assigned to the knob 311 in the ch strip mode. In other words, when the knob 311 of any ch strip 303 is operated in the ch strip mode, the value of the parameter of the PT (SMP) ID of the ch assigned to that ch strip 303 is the amount of knob operation. It is sufficient to adjust according to.

  More specifically, in the channel strip mode, a channel is assigned to each channel strip 303, but a parameter that the user wants to adjust can be arbitrarily allocated to the knob 311. For example, when the input channels 1 to 16 are assigned to the channel strips 303-1 to 303-16, and the equalizer band 3 is assigned to the knob 311 according to the user setting, the equalizer 31 of the input channel 1 is selected by the knob 311-1. The attenuation level of the band 3 can be adjusted, the attenuation level of the band 3 of the equalizer of the input channel 2 can be adjusted by the knob 311-2, and so on. In this case, the user assigning a parameter to the knob 311 means that the value of SMP is determined so that the ID of the parameter can be referred to internally by PT (SMP). In the above example, when the user performs setting for assigning the band 3 of the equalizer to the knob 311, SMP = 2 is set. When referring to PT (SMP), that is, PT (2) from the equalizer parameter table PT, the knob 311 is set. This means that it can be understood that the ID of the assigned parameter is the band 3 of the equalizer. Note that the SMP value is set to an initial value 0, and is set by incrementing (or decrementing) by 1 when a predetermined operation is performed.

  (6) 1CMP: 1_ch mode pointer. A variable used as a subscript of the parameter table PT, and stores a subscript value referring to the parameter ID assigned to the knob 311-1 of the leftmost ch strip 303-1 in the 1_ch mode. Conversely, in the 1_ch mode, when the knob 311- * of the ch strip 303- * (* is an integer of i + 1, where i is an integer of 0 to 15) is operated, the 1_ch screen currently popped up is displayed. The value of the parameter of the ID of PT (1CMP + i) of the editing target channel (that is, DC1) may be adjusted according to the knob operation amount. Note that the value of 1CMP is set to an initial value 0, and when page p is designated by the button group 305, 1CMP = 16 × (p−1) may be set.

  (7) 2CMP: 2_ch mode pointer. A variable used as a subscript of the parameter table PT, and stores a subscript value referring to the parameter ID assigned to the knob 311-1 of the leftmost ch strip 303-1 in the 2_ch mode. In other words, in the 2_ch mode, when the knob 311- * of the ch strip 303- * (* is an integer of i + 1, where i is an integer of 0 to 15) is operated, if 0 ≦ i ≦ 7, a pop-up is displayed. The value of the parameter of the ID of PT (2CMP + i) of the editing target channel (that is, DC1) on the left screen of the 2_ch screen that has been adjusted may be adjusted according to the amount of knob operation. The value of the parameter of the ID of PT (2CMP + i−8) of the editing target channel (that is, DC2) on the right screen of the 2_ch screen is adjusted according to the knob operation amount. Note that the value of 2CMP is set to an initial value 0, and when page p is designated by the button group 305, 2CMP = 8 × (p−1) may be set.

  (8) SO: Simultaneous operation flag. 0 when only one edit button is turned on, 1 when multiple edit buttons are turned on simultaneously.

  (9) EB (i): An edit button status flag. The initial state is EB (i) = 0, and when the edit button 312- * of the ch strip 303- * (* is an integer of i + 1, i is an integer of 0 to 15) is turned on, EB (i) = 1 is set.

  (10) lsn and rsn: Variables for storing values indicating the positions of the ch strips 303 of the two edit buttons turned on simultaneously. The position of the ch strip 303 is specified by i.

  FIG. 9A is a flow showing the procedure of the layer selection process. A layer is a layer of a channel group assigned to 16 channel strips 303. As shown in FIG. 4, since the mixer of this embodiment is provided with 48 input channels, 24 output channels, etc., for example, the layers of input channels 1 to 16, the layers of input channels 17 to 32,. Etc. are provided. When an operation for selecting these layers is performed, the process of FIG. 9A is executed.

  First, in step 901, each 16-channel ID of the selected layer is written to AC (0) to AC (15). In step 902, the display mode DM = 0, and null is written to DC1 and DC2. In step 903, a channel strip screen (301 in FIG. 3) for displaying information on each channel of AC (0) to AC (15) is displayed. In particular, an area for displaying the values of the parameters currently assigned to the knob 311 (in such a manner that the parameters are assigned to the knob 311) is provided in the channel strip screen to be displayed. Therefore, one parameter of AC (0) to AC (15) indicated by the parameter table PT (SMP) is displayed in the area. As the parameter table PT, the parameter table PT corresponding to the genre designated by the button group 306 at that time is used. In the SMP, a value for specifying a parameter assigned to the knob 311 by the user is set from the parameters of the genre.

  FIG. 9B is a flowchart of the processing at the time of operation of the fader 315. When i is an integer of 0 to 15 and * = i + 1, this processing is executed when the fader 315- * of the ch strip 303- * is operated. In step 911, the fader value of AC (i) ch (usually the volume level of that ch) is changed according to the fader operating position.

  FIG. 10 is a flowchart showing processing when the knob 311 of any ch strip is operated. This process is executed when the knob 311- * of the ch strip 303- * is operated using the above i and *.

  In step 1001, DM is determined. In the channel strip mode, in step 1003, the value of the AC (i) parameter specified by the parameter ID of PT (SMP) is changed according to the operation amount and direction of the operated knob 311. In the 1_ch mode, in step 1004, the parameter value specified by the parameter ID of the PT (1CMP + i) of the DC1 ch is changed according to the operation amount and direction of the operated knob 311. In the 2_ch mode, in step 1002, the value of i specifying the operated knob is determined. If 0 ≦ i ≦ 7 (that is, if one of the knobs 311-1 to 311-8 has been operated and the parameter change instruction for the editing target channel on the left screen of the 2_ch screen), then in step 1005 The value of the parameter specified by the parameter ID of the PT (2CMP + i) of the DC1 ch is changed according to the operation amount and direction of the operated knob 311. If 8 ≦ i ≦ 15 (that is, if any of the knobs 311-9 to 311-16 has been operated and is an instruction to change parameters for the editing target channel on the right screen of the 2_ch screen), in step 1006 The value of the parameter specified by the parameter ID of PT (2CMP + i−8) of the DC2 ch is changed according to the operated amount and direction of the operated knob 311.

  FIG. 11A is a flowchart showing processing when the edit button 312 of any ch strip is turned on (pressed). This process is executed when the edit button 312- * of the ch strip 303- * is turned on using the above i and *.

  In step 1101, EB (i) is set to 1. In step 1102, it is determined whether there is another edit button that is on. For this purpose, it can be determined by whether or not there is a status flag EB of the ch strip other than the ch strip specified by the current i. If there is no other edit button that is turned on, the simultaneous operation flag SO = 0 is set in step 1103. If there is another edit button that is turned on, the simultaneous operation flag SO = 1 is set in step 1104.

  FIG. 11B is a flowchart showing processing when the edit button 312 of any channel strip is turned off (an operation to release after being pressed). This process is executed when the edit button 312- * of the ch strip 303- * is turned off using the above i and *.

  In step 1111, EB (i) is reset to zero. In step 1112, the number of edit buttons being turned on is determined. This determination can be made by checking the EB of all channel strips. When the number of edit buttons being turned on is two or more, the two channels for opening the 2_ch screen cannot be specified yet, and the process is terminated. When the number of edit buttons being turned on is 0, this means that the edit button that has been turned off is the one that was turned off last. In this case, the simultaneous operation flag SO is checked, and if SO ≠ 0, the pop-up display should already have been made, and the process is terminated. If SO = 0, DM is checked in step 1114. If the current mode is the ch strip mode, DM is set to 1_ch mode in step 1115, AC (i) is set in DC1, and null is set in DC2. Further, the edit button 312 of the ch strip 303- * to which the channel of AC (i) is assigned is turned on, and the other edit buttons 312 are turned off. Next, in step 1116, the values of the 16 parameters specified by the parameter IDs of the parameter tables PT (1CMP) to PT (1CMP + 15) related to the channel of DC1 are sequentially displayed in the areas 612-1 to 612-16. Display the screen and exit.

  If the current mode is other than the ch strip mode in step 1114, it means that the 1_ch screen or 2_ch screen has already been popped up, and in step 1117, the currently displayed 1_ch screen or 2_ch screen to be edited (DC1 , DC2) and the channel (AC (i)) for which the edit button is currently turned off match. If they do not match, it is assumed that the 1_ch screen is displayed with AC (i), which is the channel whose edit button is currently turned off, as the editing target channel, and the process proceeds to step 1115.

  If the editing target channel (DC1, DC2) currently displayed in step 1117 on the 1_ch screen or 2_ch screen matches the channel (AC (i)) on which the edit button is now turned on, the current display is performed. In step 1118, 0 is set in DM, null is set in DC1 and DC2, and the edit buttons 312 of all ch strips 303 are turned off. Next, in step 1119, a channel strip screen (301 in FIG. 3) displaying information on each channel of AC (0) to AC (15) is displayed. At this time, the channel is assigned to the knob 311 in the channel strip screen. Each parameter of AC (0) to AC (15) indicated by the parameter table PT (SMP) is displayed in the parameter display area.

  If the number of edit buttons turned on in step 1112 is 1, it means that one edit button has been turned off after two edit buttons have been turned on. Proceed to 1120. In step 1120, the variable j is set to the number of the edit strip ch strip 303 of the currently-on edit button (the leftmost ch strip is set to 0, the ch strip adjacent to the right is set to 1, and the subsequent steps are 2, 3, ... And the number of the rightmost ch strip as 15 is stored. In step 1121, among the i specifying the channel strip whose edit button is currently turned off and the j specifying the currently active channel strip, the smaller one is stored in the variable lsn and the larger one is stored in the variable rsn. Next, in step 1122, 2 is stored in DM, AC (lsn) is stored in DC 1, AC (rsn) is stored in DC 2, and two channels of AC (lsn) and AC (rsn) are allocated. The edit buttons 312 of the ch strips 303-l * and 303-r * (where l * = lsn + 1, r * = rsn + 1) are turned on, and the other edit buttons 312 are turned off. A left screen that sequentially displays values of eight parameters specified by the parameter IDs of the parameter tables PT (2CMP) to PT (2CMP + 7) related to the channel of DC1 in the areas 712-1 to 712-8 in Step 1123; A 2_ch screen including a right screen that sequentially displays values of eight parameters specified by the parameter IDs of the parameter tables PT (2CMP) to PT (2CMP + 7) related to the channel of DC2 in regions 722-1 to 722-8. Display and exit.

  When a page is specified by the button group 305 while the 1_ch screen or the 2_ch screen is displayed, 1CMP or 2CMP is changed according to the specified page p, and the processing of step 1116 or 1123 is performed. Then, the 1_ch screen or the 2_ch screen may be displayed again. When the genre is changed by the button group 306 while the 1_ch screen or the 2_ch screen is displayed, the page p is initialized to 1, and 1CMP or 2CMP is changed according to the page p. The 1_ch screen or the 2_ch screen may be redisplayed in the processing of step 1116 or 1123 using the parameter table PT of the newly specified genre.

  In the above embodiment, as shown in FIG. 2, the present invention is applied to a system including a digital mixer and an external display. However, the present invention performs processing of a plurality of channels of acoustic signals such as a recorder and an effector. The present invention can be applied to various acoustic signal processing devices.

  Also, from a combination with a control surface (such as Houston (registered trademark)) connected to the PC as a user interface of a DAW (for example, Cubase (registered trademark) or Nuendo (registered trademark)) operating on the OS of the PC You may apply to the acoustic signal processing apparatus which becomes. FIG. 12 shows a configuration example in which a DAW is operated on a PC 1201 having a pointing device such as a mouse (the PC 1201 side does not require a display because there is an external display 1202), and the external display 1202 and the control surface 1203 are connected to the PC 1201. is there. As is well known, the DAW operating on the PC 1201 has a multi-track audio recorder function, a multi-track MIDI sequencer function, an audio mixer function having a plurality of input channels, a plurality of buses, and a plurality of output channels. Therefore, it can be said that the combination of the control surface and the DAW audio mixer function is almost equivalent to the digital mixer 100. In this case, the fader 107 and the operator 108 in FIG. 1 correspond to the control surface 1203, and the other parts in FIG. 1 correspond to the DAW operating on the PC 1201, and the above-described operation is realized in the DAW. A program should be incorporated.

  In the above embodiment, the parameter assignment to the knob 311 of each channel strip 303 is performed in the form of PT (SMP) via the parameter table PT. However, the parameter ID is directly assigned to each knob 311. You may make it assign. Specifically, SMPID (strip mode parameter ID) is prepared as a variable instead of SMP, the ID of the parameter assigned to the knob 311 is stored in the variable SMPID, and in step 1003 of FIG. 10, the AC indicated by the variable SMPID is stored. The parameter value of (i) may be increased or decreased. In this case, a desired parameter can be assigned to the knob 311 regardless of the genre selected by the button 306.

  The display device 105 may be a touch display. In that case, it is preferable that the user can assign the parameter to the knob 311 by touching a desired parameter displayed on the ch strip screen 321.

  Further, the EQ 503 may be a parametric equalizer having a parameter configuration different from that of the graphic equalizer.

  DESCRIPTION OF SYMBOLS 101 ... Central processing unit (CPU), 102 ... Flash memory, 103 ... RAM (random access memory), 104 ... Display I / O, 105 ... External display, 106 ... Other I / O, 107 ... Electric fader, 108 ... Operators, 109 ... Waveform I / O, 110 ... Signal processing unit (DSP), 120 ... Bus line.

Claims (5)

A channel processing unit comprising a plurality of channels for performing signal processing on the acoustic signal based on the value of the parameter for each channel,
A channel strip unit having a plurality of channel strips, wherein one channel strip has a first setting operator, a second setting operator, and an edit button, and the plurality of channel strips have a first group and a first group operator. A channel strip section divided into two groups;
Assign one of the channels of the channel processing unit to each channel strip of the channel strip unit, and set the value of the parameter of the channel assigned to the channel strip in accordance with the operation of the second setting operator of the channel strip. Channel parameter adjusting means to be adjusted;
In response to simultaneous operation of the edit buttons of any two channel strips in the first group and the second group, a plurality of first channels out of two channels assigned to the channel strips are selected. A two-channel screen is displayed in which the parameters are displayed in association with the first group of channel strips, and the parameters of the second channel of the two channels are displayed in association with the second group of channel strips. First display control means for controlling a predetermined display;
Each of the plurality of parameters of the first channel displayed on the two-channel screen is assigned to the first setting operator of each channel strip of the first group in the channel strip portion, and displayed on the two-channel screen. And assigning each of the plurality of parameters of the second channel to the first setting operator of each channel strip of the second group in the channel strip portion, and according to the operation of each first setting operator. An acoustic signal processing apparatus comprising: a first parameter adjusting unit that adjusts a parameter value assigned to one setting operator. The acoustic signal processing device according to claim 1,
In response to a single operation of the edit button of any one channel strip in the first group and the second group, a plurality of parameters of one channel assigned to the channel strip are set to the first and second parameters. Second display control means for controlling the display so as to display a one-channel screen to be displayed in association with two groups of channel strips;
Assign each of the plurality of parameters of the one channel displayed on the one channel screen to the first setting operator of each channel strip of the channel strip portion of the first and second groups, and An acoustic signal processing apparatus comprising: a second parameter adjusting unit that adjusts a parameter value assigned to each first setting operator in accordance with an operation of the first setting operator. The acoustic signal processing device according to claim 2,
The second display control means is further configured so that, when the two-channel screen is displayed on the display, the first and second channels displayed on the two-channel screen are assigned to the two display screens. In response to the operation of the edit button of any one channel strip other than the channel strip, a plurality of parameters of one channel assigned to the channel strip are associated with the channel strips of the first and second groups. The acoustic signal processing apparatus controls the display so as to display the one-channel screen to be displayed. The acoustic signal processing device according to any one of claims 1 to 3,
When the two-channel screen is displayed on the display, an edit button provided in any one of two channel strips to which the first and second channels displayed on the two-channel screen are assigned In response to the operation, a channel strip screen for displaying a list of parameter setting states of all channels assigned to the plurality of channel strips in the channel strip portion in association with the first and second group channel strips is displayed. Third display control means for controlling the display,
When displaying the channel strip screen, one parameter of any channel of the channel processing unit is set as the first setting operator of each channel strip of the channel strip unit according to the channel assignment by the channel parameter adjusting means. And a third parameter adjusting means for adjusting the value of the parameter assigned to each first setting operator in accordance with the operation of each first setting operator. . A channel processing unit comprising a plurality of channels for performing signal processing on the acoustic signal based on the value of the parameter for each channel,
A channel strip unit having a plurality of channel strips, wherein one channel strip has a first setting operator, a second setting operator, and an edit button, and the plurality of channel strips have a first group and a first group operator. An acoustic signal processing device including a channel strip portion divided into two groups,
Assign one of the channels of the channel processing unit to each channel strip of the channel strip unit, and set the value of the parameter of the channel assigned to the channel strip in accordance with the operation of the second setting operator of the channel strip. Channel parameter adjustment procedure to be adjusted,
In response to simultaneous operation of the edit buttons of any two channel strips in the first group and the second group, a plurality of first channels out of two channels assigned to the channel strips are selected. A two-channel screen is displayed in which the parameters are displayed in association with the first group of channel strips, and the parameters of the second channel of the two channels are displayed in association with the second group of channel strips. A first display control procedure for controlling a predetermined display;
Each of the plurality of parameters of the first channel displayed on the two-channel screen is assigned to the first setting operator of each channel strip of the first group in the channel strip portion, and displayed on the two-channel screen. And assigning each of the plurality of parameters of the second channel to the first setting operator of each channel strip of the second group in the channel strip portion, and according to the operation of each first setting operator. A parameter adjustment method comprising: executing a first parameter adjustment procedure for adjusting a value of a parameter assigned to one setting operator.

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