JP4678594B2 - Digital mixer with dot matrix display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital mixer having a dot matrix display for displaying a prescribed document on a display device, referring easily the document at a position according to its time code even if the time code was changed, and operating a work while switching the display of the document and the scene display for setting various parameters of the mixer. <P>SOLUTION: Sequence is stored for indicating a change in position on the document according to a time code value. If an on/off operating knob is turned on in operation on an operation panel, the position on document to be displayed at the current time is determined based on the current time code and the sequence, and the position of the document is displayed on the display device. If the on/off operating knob is turned off in operation, the parameter scene displayed immediately before is displayed on the display device. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

  The present invention relates to a digital mixer having a dot matrix display, and more particularly to a digital mixer suitable for mixer operation while viewing a predetermined document.

  Conventionally, acoustic signals from various acoustic signal sources such as a microphone are input, mixing processing, effect imparting processing, volume level control processing, etc. are performed, and the processed acoustic signals are output to various output devices such as amplifiers and speakers. There is known a mixer device that outputs to the output. In recent years, digital mixers that perform internal signal processing by digital processing have been developed.

  The basic operation of the digital mixer is as follows. First, a plurality of externally input signals are input to a plurality of input channels (channels), the characteristics of the signals are controlled for each input channel, and output to a desired bus among the plurality of buses. In each of the plurality of buses, input signals are mixed and output to output channels corresponding to each bus. In the plurality of output channels, the characteristics of the input signal are controlled and output to the outside. The operation panel has a small number of controls compared to the number of all mixer parameters (multiple input channels, output channels, and other parameters such as effectors). Parameters selected by the user are assigned to these controls. In accordance with the operation of the operator, the parameter value assigned to the operator is controlled.

  The digital mixer includes a dot matrix display (hereinafter referred to as a DM display) for displaying a parameter screen and other setting screens. The user operates the screen selection operator to display the parameter screen that he / she wants to check or set on the DM display, and confirms various setting values by looking at the screen, while viewing the screen. Operate to change various setting values.

  Various parameters defining the operation of the digital mixer described above are stored in the current memory. Conversely, the operation of the digital mixer is defined based on the parameter values on the current memory. Further, the digital mixer includes a scene memory for storing a plurality of scenes (scene data). The parameter values on the current memory can be stored (stored) in the scene memory with a scene number assigned as one scene. Also, the scene number can be designated to recall (recall) the parameter value of the scene from the scene memory to the current memory.

The digital mixer described above performs a time code based operation. That is, various operations are performed using a time code supplied from another device or generated inside the mixer as a time reference. For example, in an acoustic support mixer, an event list in which a time code value and a scene to be recalled at the time code are registered in advance is created, and the scene is automatically switched as the time code advances. (See Non-Patent Documents 1 and 2). Also, some music production mixers have a so-called automix function that can change not only the scene selection but also the value of an arbitrary parameter according to the time code.
"CS1D CONTROL SURFACE Instruction Manual" P.33-35, Yamaha Corporation, 2002 “PM5D DIGITAL MIXING CONSOLE Owner's Manual” P.157-160, Yamaha Corporation, 2004

  An operator of such a mixer usually works while referring to a document (progress table or the like) written on paper. For example, at events, concerts, plays, and recordings, the mixer operator prepares a booklet or card such as a schedule table, script, lyric card, or sheet music near the mixer, and performs operations while checking the progress of the work. It was.

  However, in the aforesaid plays and the like, it does not always proceed according to a predetermined time schedule, and the time code that is the reference time of operation may have to be changed. When the time code position is changed, there is an inconvenience that the position on the document must be searched again accordingly.

  The present invention enables a digital mixer having a dot matrix display to display a predetermined document such as a progress table on the dot matrix display and a position corresponding to the time code even when the time code is changed. The purpose is to make it easy to refer to the document. It is another object of the present invention to allow the operation to proceed while easily switching between the document display and the mixer parameter setting screen display.

  In order to achieve this object, the present invention stores a sequence indicating a change in position on the document according to a time code value, and when an on / off operator on the operation panel is turned on, The position on the document to be displayed at the present time is determined based on the time code of the document and the sequence, the data of the position of the document is displayed on the display, and when the on / off operator is turned off, the position is turned off. Before the operation, the parameter screen displayed immediately before the on / off operator is turned on is displayed on the display. As for the parameter screen, one screen is selected from a plurality of parameter screens according to the operation of the screen selection operator, and the selected screen can be displayed on the display.

  When an automatic tracking on / off operation switch for switching on / off of the automatic tracking mode is provided and the automatic tracking mode is on, the position on the document to be displayed at the current time based on the current time code and the sequence. When the automatic tracking mode is turned off, the position of the document displayed on the display immediately before the last off operation of the on / off controller is displayed. These data may be displayed on the display.

  Further, a time code position operator is provided, and when the time code position operator is operated in a state where the on-off operator is turned on and the document is displayed on the display, the current time code and the sequence are displayed. Based on the above, the position on the document to be displayed at the present time may be determined, and the data on the position of the document may be displayed on the display.

  When the on / off operator is turned on and the document is displayed on the display unit and the automatic tracking mode is turned on, the current time code and the current time code Based on the sequence, it is determined whether or not the position on the document to be displayed at the present time is different from the actual current display position. If the position is different, the display position is changed and redisplayed.

  When the document is displayed on the display, display position changing means for displaying an arbitrary position in the document may be further provided.

  According to the present invention, information on a position corresponding to the current time code of a document can be displayed on the display only while the on / off operation element is on. Accordingly, the operator can refer to the position of the document to be referred to without special operation as time advances. When the on / off operation element is turned off, the screen displayed on the display can be immediately returned to the parameter screen selected immediately before by the screen selection operation element. Accordingly, the parameter setting change while referring to the parameter screen can be performed at any time as desired by the operator. Furthermore, when the automatic tracking mode is on, the position corresponding to the current time code that proceeds in real time is automatically displayed, so that the operator does not need to perform an operation of changing the display position of the document. When a document is displayed, an arbitrary position can be referred to by display position changing means (such as scrolling).

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

  FIG. 1 is a block diagram of a digital mixer having a DM display according to an embodiment of the present invention. The mixer 100 includes a central processing unit (CPU) 101, a flash memory 102, a random access memory (RAM) 103, other I / O (input / output interface) 104, a display 105, an electric fader 106, an operator 107, a time code. An I / O 108, a waveform I / O 109, a signal processing unit 110, and a bus line 111 are provided.

  The CPU 101 is a processing device that controls the overall operation of the mixer. The flash memory 102 is a non-volatile memory that stores various control programs executed by the CPU 101 and various data used for processing (which can be rewritten and does not lose stored information even when the power is turned off). is there. The RAM 103 is a volatile memory used for a load area and a work area for programs executed by the CPU 101. The other I / O 104 is an interface for connecting various external devices such as a computer for controlling the mixer from the outside. The display 105 is a dot matrix type display for displaying various information provided on the external panel of the mixer. The electric fader 106 is an operator for setting various parameter values provided on the external panel of the mixer. The operator 107 is various operators provided on the external panel of the mixer.

  Reference numeral 120 denotes a multitrack recorder connected to the mixer 100. The multi-track recorder 120 includes a recording device such as a hard disk and can record and reproduce a plurality of tracks simultaneously. The waveform I / O 109 is output from the multi-track recorder 120 and other input / output devices (for example, an AD conversion card for analog / digital conversion of analog audio signals input from an input device such as a microphone) and this mixer. An input / output interface with a DA conversion card or the like that converts a digital sound signal into a sound system after digital / analog conversion. The signal processing unit 110 arbitrarily assigns digital acoustic signals input via the waveform I / O 109 to a plurality of input channels (channels), arbitrarily mixes the acoustic signals of each input channel by a plurality of mixing buses, and passes through the output channels It is a DSP (digital signal processing device) that performs the processing to be output at. In each input channel and output channel, volume level setting using the fader 106, control of frequency characteristics, various waveform deformation processing, effect application processing, and the like can be performed. As a result, the DSP 110 performs processing such as mixing, level setting, and effect addition on the sound signal input from an input device such as a microphone and records the sound signal on a predetermined track of the multitrack recorder 120 or a predetermined track of the multitrack recorder 120. Can be recorded on another track after being processed by the DSP 110 while being reproduced, or a predetermined track of the multi-track recorder 120 is reproduced and processed after being processed by the DSP 110.

  The time code I / O 108 is an interface for inputting a time code output from the multitrack recorder 120. The time code is time information for synchronizing the mixer 100 and the recorder 120. Here, the time code is expressed by separating it with a colon and a period such as “hour: minute: second.frame”. Hereinafter, the current time code input from the recorder 120 is referred to as “current time code TC”. In this embodiment, the time code from the recorder 120 is used for synchronization, but a time code generated inside the mixer 100 may be used.

  FIG. 2 shows the external appearance of the digital mixer 100 of FIG. 201 is a 10 screen selection switch, 202 is a dot matrix display section, 203 is an assigned channel strip section, 211 to 214 are up / down / left / right cursor movement buttons, 215 is a DEC button, 216 is an INC button, 217 is an enter key, and 218 Is the wheel. The assigned channel strip unit 203 includes eight assigned channel strips 203-1 to 203-8. One assigned channel strip (for example, 203-1) includes an electric fader 231, an ON switch 232, a SEL switch 233, and a rotary encoder 234. The other assigned channel strips 203-2 to 203-8 have the same configuration.

  When any one of the screen selection switches 201 is turned on, a screen corresponding to the switch is displayed, and the assigned channel strips 203-1 to 203-8 are assigned to functions according to the displayed screen. Specifically, the screen selection switch 201 includes first to eighth input channel selection switches, ninth to sixteenth input channel selection switches,..., Or first to eighth output channel selection switches. When the first to eighth input channel selection switches are turned on, the parameter setting status of the first to eighth input channels is displayed on the display unit 202. The screen at that time is called a “group screen”. When the group screens of the first to eighth input channels are displayed, the assigned channel strips 203-1 to 203-8 are allocated as operators for setting the parameters of the first to eighth input channels, respectively. Similarly, when the ninth to sixteenth input channel selection switches are turned on, the group screens of the ninth to sixteenth input channels are displayed, and the assigned channel strips 203-1 to 203-8 are assigned to the ninth to sixteenth input channels. Assigned. The same applies to the other switches of the screen selection switch 201.

  The controls 231 to 234 in the assigned channel strip will be described. The electric fader 231 is a fader for controlling the level of the channels assigned to the assigned channel strip. The ON switch 232 is a switch for switching on / off the signal of the channel. The SEL switch 233 is a switch for instructing to display a screen (referred to as a “detailed parameter setting screen”) for performing detailed parameter settings regarding the channel. After the SEL switch 233 is pressed to display the detailed parameter setting screen, when the same SEL switch 233 is pressed again, the original group screen is displayed again. The rotary encoder 234 is for changing the value of a predetermined parameter in a selected state among the parameters displayed on the group screen.

  In both the group screen and the detailed parameter setting screen, a cursor is displayed on the screen. The parameter on which the cursor is set is the selected parameter. Using the cursor movement buttons 211 to 214, the cursor displayed on the screen is set to a desired parameter, and the DEC button 215, INC button 216, and wheel 218 are operated to change the value of the parameter, This can be determined with the enter key 217.

  As described above, when one group screen is selected by the screen selection switch 201, the eight channels displayed on the group screen are assigned to the assigned channel strips 203-1 to 203-8. Even when switching to the detailed parameter setting screen, the operators of the assigned channel strips 203-1 to 203-8 function in the same manner as in the group screen displayed immediately before. Since the parameter selection state on the group screen is stored internally even after switching to the detailed parameter setting screen, the rotary encoder 234 is an operation for changing the value of the parameter selected on the group screen displayed immediately before. Acts as a child. The same applies to the detailed parameter setting screen, and an operator (not shown) for changing parameters in the detailed parameter setting screen functions effectively even when the screen is switched.

  As described above, the screen is switched by the screen selection switch 201, the parameter setting for each channel is performed while the function of the assigned channel strip is switched according to the screen, or the operation element is switched while the parameter selection state on the display screen is switched. Since 215 to 218 and 234 function as operators for changing the parameter in the selected state, all parameter values can be controlled with a smaller number of operators compared to the total number of parameters of the mixer.

  Next, the operators 221 to 225 related to the scene will be described. A scene (scene data) is a combination of parameter data (for example, a connection state between an input line and an input channel, a connection state between an output channel and an output line, a parameter setting state in each channel, etc.) that defines the mixer setting state. It is. This mixer has a current memory and operates based on the parameter setting state on the current memory. In addition, this mixer has a scene memory (the stored data will not be erased even if the mixer power is turned off), and the parameter data on the current memory is stored (stored) in the scene memory with a scene number assigned. Conversely, a scene number can be specified to recall (recall) a scene from the scene memory to the current memory. Specifically, the scene number displayed on the scene number display unit 221 is changed using the up button 223 and the down button 224, and the recall button 225 is pressed to recall the scene with that number. Also, by specifying a scene number and pressing the store button 222, the current parameter setting state in the current memory is stored as a scene of that scene number. The scene number display unit 221 normally displays the number of the scene currently called up on the current memory. Note that when the scene is automatically switched according to an event list described later, the display of the scene number display unit 221 is also switched.

  Next, the NEXT button 241 and the PREV button 242 used for scene recall based on the event list will be described. This mixer registers scenes in order in an event list (hereinafter referred to as “E list”, details of which will be described in FIG. 3A), and sets a preset time code (or a scene to be automatically called). It is also possible to automatically recall a scene at the timing of a predetermined interval). This allows automatic mixer settings along the time axis for plays, concerts, and recordings. On the other hand, in the above-mentioned theater and the like, there is a case where it is desired to switch the scene manually, so that the scene number can be set by designating that it is called by manual operation instead of the time code in the E list. When scenes are recalled in order according to the elapse of time along the E list, if a manually operated scene number appears in the E list, the scene is not recalled at that time, and the NEXT button 241 is entered. The scene of the scene number is recalled at the timing when is pressed. Also, since there is a case where it is desired to return the scene, a PREV button 242 is provided. When the PREV button 242 is pressed, the state returns to the setting state of the previous scene in the E list (that is, the event on the line immediately before the event recalled last is recalled, and the event is selected).

  Next, buttons 251 to 255 used in the document display function will be described. Usually, the mixer operator operates the mixer while looking at a progress table (for example, an event schedule table, a play script, a lyrics card or a score in a concert or recording). This mixer has a document display function for displaying such a progress table on the display unit 202.

  The DOC display button 251 is a button that switches on / off each time it is pressed. When the DOC display button 251 is turned on, a previously specified document (such as the above-described progress table) is displayed on the display unit 202. A normal parameter screen (the above-described group screen, detailed parameter setting screen, etc., which is displayed immediately before the DOC display button 251 is turned on) is displayed. Buttons 252 to 255 are buttons that are valid only during document display. Even when the document is being displayed, the operators for changing the parameters (operators 231 to 234 of the assigned channel strips 203-1 to 203-8, etc.) are effective. By operating these operators, The parameter value can be changed in the same manner as when the operator is operated on the parameter screen (group screen or detailed parameter setting screen) displayed on the screen.

  The automatic tracking button 252 is a button for switching on / off of the automatic tracking mode every time the button is pressed. When the automatic tracking mode is on, the document displayed on the display unit 202 is automatically positioned and displayed at a position corresponding to the current time code TC at that time. The relationship between the time code and the document display position is set in advance in a document sequence (hereinafter referred to as “D sequence”, the structure of which will be described with reference to FIG. 3B). When the automatic tracking mode is off, the above automatic tracking process is not performed.

  The TC position button 253 is a button for instructing to redisplay a document at a position to be displayed at the present time based on the current time code TC at that time and a predetermined D sequence. Even when the automatic tracking button 252 is turned off, if the TC position button 253 is pressed, the document is displayed again at the position to be displayed at that time. Note that the function of the TC position button 253 may be realized by abolishing the TC position button 253 and instead pressing the up button 254 and the down button 255 described below.

  The up button 254 and the down button 255 are buttons for scrolling up and down the document displayed on the display unit 202. The buttons 252 to 255 may be buttons displayed on the display unit 202 instead of being provided on the panel. In this case, the display unit 202 can be a touch screen, or a button on the display can be pressed using a touch pad or a mouse.

  FIG. 3A shows an example of the above-described E list. The E list is No. A table having fields 301, time code 302, and scene 303. No. 301 indicates the serial number of each event to be registered. The time code 302 indicates a relative time (indicated by “hour: minute: second.frame”) with the processing start time being zero. The scene 303 indicates a scene number and a scene name (which can be arbitrarily given by the user) to be recalled at the time of the corresponding time code 302. The ED 304 is a pointer indicating an event of the E list, and is always used to indicate an event of a scene to be called next. The event pointed to by the ED 304 is a selected event. In the example of E list shown in the figure, scene 001: Moni is recalled at time code = 00: 00: 00.00, scene 002: St PA is recalled at time code = 00: 00: 38.02, and then ... The scene changes. No. For events with 301 of 002 or 005, the time code 302 is [manual], which indicates that the corresponding scene is recalled by manual operation. That is, after the scene 002: St PA is called in the event of No.001, the pointer ED304 is set so as to point to the next event of No.002. enter. When the operator presses the NEXT button 241, the scene 003: Ho PA of the event is called, and the pointer ED304 advances.

  FIG. 3 (a) shows the internal table structure of the E list. When an event is set in the E list, a table as shown in FIG. 3 (a) is displayed on the screen by a predetermined operation. Assume that the operator arbitrarily sets the time code 302 and the scene 303. Also, it is assumed that the E list can be switched on / off (when the E list is on, the scene is automatically switched according to the above time code) by a predetermined operation. When the E list is on, a table of the E list as shown in FIG. 3A can be displayed by a predetermined operation. In this case, the pointer ED304 advances in accordance with the progress of the time code, but the selected event is displayed so as to be positioned near the center of the display range of the table. Although the function of automatically switching scenes according to the time code has been described here, a so-called automix function for changing the value of an arbitrary parameter according to the time code can be realized in the same manner.

  FIG. 3B shows an example of the above-described D sequence. The D sequence is No. 3 is a table having fields of 311, a time code 312, and a document position 313. No. Reference numeral 311 indicates the serial number of each event to be registered. The time code 312 indicates a relative time (indicated by “hour: minute: second.frame”) when the processing start time is zero. The document position 313 indicates the position of the document to be displayed when the corresponding time code 312 is reached. It is assumed that the document to be displayed is determined in advance (here Bino.pdf). In the example of the D sequence shown in the figure, the position of P001: L003 (showing line 003 on page 001. The same applies hereinafter) is displayed when time code = 00: 00: 00.00, and time code = 00: 00: The position of P001: L030 is displayed at 30.32, and the display position of Bino.pdf is switched.

  FIG. 3B shows the internal table structure of the D list. When an event is set in the D list, a table as shown in FIG. 3B is displayed on the screen by a predetermined operation. Assume that the operator arbitrarily sets the time code 312 and document position 313 fields. At this time, a downward triangle button 314 is displayed on the right side of each column of the document position 313. When this button 314 is pressed, a document designated as a pre-displayed document is displayed on the screen. By moving the cursor to a desired position and performing a predetermined operation, the page number and line number at that position are changed to the document. It can be entered in the column for position 313.

  Here, a PDF format file is used as a document to be displayed, and its position is designated by a page number and a line number. However, other location designation methods may be used for other format files. For example, in the case of a text document, the position is designated by a line number as indicated by 321. If the document is in HTML format, the position is designated by an anchor name as shown at 322. In the case of a document extending over a plurality of files, a document name and a position in the document are designated as indicated by 323. Further, in the case of a document straddling a plurality of HTML documents, a position is designated by a path name and an anchor name as indicated by 324. Each HTML document may be embedded with a link to another HTML document.

  FIG. 4A is a flowchart of a NEXT button on event process executed when the NEXT button 241 in FIG. 2 is pressed. In step 401, the event pointed to by the current pointer ED304 of the E list described in FIG. 3A is reproduced (that is, the scene 303 of the event is recalled). In step 402, the current pointer ED304 is updated to point to the next event, and the event is read out. In step 403, if the E list is being displayed on the screen, the display is updated so that the event pointed to by the current pointer ED304 comes to the center of the screen as the selected event.

  FIG. 4B is a flowchart of a PREV button on event that is executed when the PREV button 242 of FIG. 2 is pressed. In step 411, the current pointer ED304 is moved so as to point to the event two previous from the currently pointed event. In step 412, the same processing as the NEXT button on event described with reference to FIG. In the state before executing step 411, since the event immediately before the event pointed to by the current pointer ED304 is the event recalled last, the current pointer is further pointed to in step 412 so as to point to the previous event. The ED 304 is moved, the event is executed, and the mixer setting state is returned to the previous scene. The current pointer ED304 points to the previous event from the position pointed before entering the processing of FIG. 4B, and is in a state of waiting for the event to be reproduced.

  FIG. 4C is a flowchart of a DOC display button on event executed when the DOC display button 251 of FIG. 2 is turned on. In step 421, it is determined whether the document is currently being displayed. If it is being displayed, in step 422, the screen immediately before entering the document display is displayed, and the process ends. If the document is not being displayed, it is determined whether or not the automatic tracking is on. If not, the last display position displayed in the previous document display is displayed again in step 424, and the process ends. When automatic tracking is on, the document position to be displayed is determined in step 425 based on the latest current time code TC input and the D sequence described in FIG. 3B, and the position determined in step 426 is determined. Display the document for and exit.

  FIG. 4D is a flowchart of the TC position button on event process executed when the TC position button 253 of FIG. 2 is turned on. In step 431, it is determined whether the document is currently being displayed. When the document is being displayed, the document position to be displayed is determined in step 432 based on the latest current time code TC input and the D sequence shown in FIG. If the position is different from the currently displayed document position in step 433, the document at the position determined in step 434 is displayed and the process ends. If it is the same as the currently displayed position, the process ends from step 433.

  FIG. 5A is a flowchart of a locate input event process that is executed when a locate command is input. The locate instruction is an instruction for setting the value of the current time code TC to a specified value. In step 501, it is determined whether or not the E list in FIG. 3A is on (a state in which the scene is automatically switched according to the time code). When the E list is off, the process proceeds to step 505 as it is. When the E list is on, the E list is referred to in step 502, and the event immediately before the input current time code TC position is determined. In step 503, the current pointer ED is moved to point to the event. In step 504, the same processing as the NEXT button on event (FIG. 4A) is performed, and the process proceeds to step 505. In step 505, the automatic tracking process shown in FIG.

  As described above, the mixer according to the present embodiment operates based on this value with the time code output from the recorder 120 as the current time code TC. When the recorder or the mixer executes the locate, the designated positions are transmitted to each other, and the recorder prepares to start playback of the time code position for each track. The mixer performs the processing shown in FIG. Thus, the E list position and the D sequence position are set as the time code positions. Thereafter, when the start of recording or reproduction is instructed, the recorder starts a recording or reproduction process and outputs a time code indicating the current position of the recording or reproduction. The mixer inputs this as the current time code TC.

  FIG. 5B is a flowchart of the TC input event process executed when the current time code TC is input. This process is executed each time the current time code TC is input at predetermined time intervals, for example. In step 511, it is determined whether the E list is turned on. Otherwise, go to step 515. When the E list is on, in step 512, based on the input current time code TC and the E list, events after the current pointer ED304 (including the event pointed to by the current pointer ED304) and below the input current time code TC The event having the time code 312 is detected from the E list. In step 513, the presence or absence of such an event is determined. If there is, the same processing as the NEXT button on event is repeated in step 514, all the events detected in step 512 are executed, and the process proceeds to step 515. In step 515, the automatic tracking process shown in FIG. As a result, after the event pointed to by the current pointer ED, all events in which the value of the time code 302 is equal to or smaller than the value of the input time code TC are executed, and the current pointer ED304 is placed at the position of the event to be executed next. Will be positioned.

  FIG. 5C is a flowchart of the automatic tracking process executed in steps 505 and 515. In step 521, it is determined whether or not the automatic tracking mode is on. When the automatic tracking mode is on, in step 522, the document position to be displayed at the present time is determined based on the input position of the current time code TC and the D sequence described in FIG. In step 523, it is determined whether or not the determined position is different from the currently displayed document position. If it is different, in step 524, the document at the determined position is displayed and the process ends. If the same position as the determined document position is displayed, the process ends. For example, in the example of FIG. 3B, the position of P001: L003 is displayed when time code = 00: 00: 00.00, and the display is maintained until time code = 00: 00: 30.32. When time code = 00: 00: 30.32, the position of P001: L030 is displayed, and so on.

  According to the mixer of the above embodiment, since the predetermined document can always be displayed at the position corresponding to the value of the current time code by the automatic tracking mode, the operator can respond to the progress of time without performing any special operation. The document position to be referred to can be referred to. Since the document display and the parameter screen can be switched only by pressing the DOC display button 251, the parameter control operation does not become difficult. Since the document can be scrolled by the scroll buttons 254 and 255, an arbitrary position can be easily referred to. Since the TC position button 253 is provided, it is easy to redisplay the position according to the current time code.

  In the above embodiment, the automatic tracking mode can be turned on / off by the automatic tracking button 252; however, the button 252 may be omitted and the automatic tracking mode may be always operated. Further, the automatic tracking function may be eliminated. Even if the automatic tracking function is eliminated, the document can be referred to at a position corresponding to the current time code if the TC position button 253 is turned on immediately after the document is displayed with the DOC display button 251. In the above embodiment, the time code output from the multi-track recorder 120 is used. Instead, the time code of an arbitrary device having a function of outputting the time code, such as a video recorder or a time code generating dedicated device, is used. May be used. Furthermore, although the automation function is based on the E list in the above embodiment, an automix may be used instead of the E list.

Block diagram of the digital mixer of the embodiment External view of the panel of this digital mixer Diagram showing an example of the table structure of this digital mixer Flow chart showing the processing of this digital mixer (part 1) Flow chart (part 2) showing the processing of this digital mixer

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Digital mixer, 101 ... CPU, 102 ... Flash memory, 103 ... RAM, 104 ... Other I / O, 105 ... Display, 106 ... Electric fader, 107 ... Operator, 108 ... Time code I / O, 109 ... Waveform I / O, 110... Signal processing unit (DSP), 111... Bus line, 120.

Claims (6)

Current storage means for storing a plurality of parameters;
Means for processing an acoustic signal based on a plurality of parameters stored in the current storage means;
Document storage means for storing a document;
Sequence storage means for storing a sequence indicating a change in position on the document according to a time code value;
A means of obtaining the current time code;
An operation panel including a display that performs dot matrix display, a screen selection operator, a parameter operator that controls parameters, and an on / off operator for document display;
A first screen control means for selecting one screen from a plurality of parameter screens in accordance with an operation of the screen selection operator and displaying the selected screen on the display;
When the on / off operation element is turned on, a position on the document to be displayed at the present time is determined based on the current time code and the sequence, and data on the position of the document is displayed on the display And when the on / off operation element is turned off, the second screen control for causing the display unit to display the parameter screen displayed immediately before the on / off operation element is turned on. Means,
Means for changing at least one parameter value of a plurality of parameters stored in the current storage means in response to an operation of the parameter operator, and a digital mixer having a dot matrix display . Current storage means for storing a plurality of parameters;
Means for processing an acoustic signal based on a plurality of parameters stored in the current storage means;
Document storage means for storing a document;
Sequence storage means for storing a sequence indicating a change in position on the document according to a time code value;
A means of obtaining the current time code;
Provided with a display that performs dot matrix display, a screen selection operator, a parameter operator that controls parameters, an on / off operator for document display, and an automatic tracking on / off switch that switches on / off of the automatic tracking mode An operation panel;
A first screen control means for selecting one screen from a plurality of parameter screens in accordance with an operation of the screen selection operator and displaying the selected screen on the display;
(a) When the on / off controller is turned on,
(a-1) When the automatic tracking mode is turned on, the position on the document to be displayed at the present time is determined based on the current time code and the sequence, and data on the position of the document is determined. Is displayed on the display,
(a-2) When the automatic follow-up mode is turned off, the data at the position of the document displayed on the display immediately before the previous off operation of the on / off operator is displayed on the display.
(b) Second screen control means for causing the display to display a parameter screen displayed immediately before the on / off operation element is turned on before the on / off operation element is turned off. When,
Means for changing at least one parameter value of a plurality of parameters stored in the current storage means in response to an operation of the parameter operator, and a digital mixer having a dot matrix display . A digital mixer comprising the dot matrix display according to claim 1 or 2,
While providing a time code position operator on the operation panel,
When the time code position operator is operated in a state where the on / off operator is turned on and the document is displayed on the display unit, based on the current time code and the sequence, A digital mixer having a dot matrix display, further comprising third screen control means for determining a position on the document to be displayed and displaying data on the position of the document on the display. A digital mixer comprising the dot matrix display according to claim 2.
When the on / off operator is turned on to display the document on the display and the automatic tracking mode is on, the current time code is changed each time the current time code is changed. Based on the time code and the sequence, it is determined whether or not the position on the document to be displayed at the present time is different from the actual current display position. A digital mixer having a dot matrix display, further comprising means. A digital mixer comprising the dot matrix display according to any one of claims 1 to 4,
A digital mixer having a dot matrix display, further comprising display position changing means for displaying an arbitrary position in the document when the document is displayed on the display. Current storage means for storing a plurality of parameters;
Means for processing an acoustic signal based on a plurality of parameters stored in the current storage means;
Document storage means for storing a document;
Sequence storage means for storing a sequence indicating a change in position on the document according to a time code value;
A means of obtaining the current time code;
An operation panel having a display that performs dot matrix display, a screen selection operator, a parameter operator that controls parameters, an on / off operator for document display, and a time code position operator;
A first screen control means for selecting one screen from a plurality of parameter screens in accordance with an operation of the screen selection operator and displaying the selected screen on the display;
When the on / off operator is turned on, the data of the position of the document displayed immediately before the on / off operator is turned off last time is displayed, and when the on / off operator is turned off, A second screen control means for displaying on the display the parameter screen that was displayed immediately before the on / off operator was turned on last time;
When the time code position operator is operated in a state where the on / off operator is turned on and the document is displayed on the display unit, based on the current time code and the sequence, Third screen control means for determining a position on the document to be displayed and displaying data on the position of the document on the display;
Means for changing at least one parameter value of a plurality of parameters stored in the current storage means in response to an operation of the parameter operator, and a digital mixer having a dot matrix display .

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