JP5061508B2 - Audio mixer and program - Google Patents

Description

  The present invention relates to an audio mixer and a program suitable for use in editing an audio signal.

  In the digital mixer disclosed in Patent Document 1, various audio signals supplied from the outside are input to the input port. In addition, signals input to these input ports are supplied to an input channel adjustment unit, where the volume, frequency characteristics, and the like are adjusted. What determines the correspondence between input ports and input channels is called an input patch. The signals adjusted in each input channel adjustment unit are supplied to a plurality of MIX buses, where the signals of the plurality of input channels are mixed. These mixing results are supplied to a MIX output channel adjustment unit provided for each MIX bus, where further adjustment of volume, frequency characteristics, and the like is performed. The output signal from the MIX output channel adjustment unit is used for sound emission to the passenger seat, recording, and the like.

  Here, when a recorder that records and reproduces audio is connected to a digital mixer, an output signal of any MIX output channel is supplied to the recorder as a recording signal, and a reproduction signal output from the recorder is an input patch unit. In general, the recorder is connected to a digital mixer so as to be supplied to any one of the input channel adjustment units via the. Further, the user can appropriately select a signal of each input channel or MIX output channel as a CUE signal and monitor the sound.

Japanese Patent No. 3661622

  In the above-described conventional digital mixer, the user cannot select “recording signal supplied to the recorder” or “reproduction signal input from the recorder” as the CUE signal. On the other hand, the fact that the playback signal and recording signal of the recorder cannot be monitored in this way is not particularly inconvenient. This is because the recorder is generally provided with a monitor terminal, and the reproduction signal and the recording signal should be monitored using the recorder itself.

By the way, the applicant of the present invention incorporates a recorder that uses a removable nonvolatile memory such as a USB memory in a digital mixer, can record a signal of a desired output channel, and can output the reproduced signal to a desired input channel. We are considering to be able to supply. If it is an externally connected recorder, the recorded signal and the reproduced signal can be confirmed by listening to the signal from the headphone terminal of the recorder, but this built-in recorder can easily confirm the confirmation. Can not do. In other words, when confirming the signal to be recorded, it is necessary to determine which output channel the signal is being recorded and to cue that output channel, and when confirming the reproduced signal, It is necessary to determine which input channel the received signal is supplied to and cue that input channel.
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an audio mixer and a program capable of monitoring an input / output signal of a built-in recorder with a simple operation.

In order to solve the above problems, the present invention is characterized by having the following configuration. The parentheses are examples.
The audio mixer according to claim 1, wherein a plurality of mixing buses (112) that respectively mix supplied signals and output mixed signals, and adjust the characteristics of the respective input signals to mix the mixing buses ( 112) and a plurality of output channels (116) which are provided corresponding to each of the mixing buses (112) and which adjust and output the characteristics of the respective mixed signals. And a recorder (12) having a function of recording a supplied signal in a storage medium (34) and a function of reproducing and outputting a signal stored in the storage medium (34), and the plurality of outputs Recording selection means (120) for selecting any one of the output signals of the channel (116) and supplying the selected output signal to the recorder (12); and the recorder (12) Output destination selection means (108) for supplying the reproduced signal reproduced from the above to any one of the plurality of input channels (110), and a cue signal output for outputting the supplied signal as a cue signal (CUE signal) And a cue instruction (CUE button) for any one of the output signal of the plurality of input channels (110), the output signal of the plurality of output channels (116), and the output signal of the recording selection means Or cue signal control means (CPU 22, SP28) for supplying the instructed signal to the cue signal output means (114) in response to depression of the CUE key).
According to a fifth aspect of the program, a plurality of mixing buses (112) for mixing the supplied signals and outputting the mixed signals, and adjusting the characteristics of the input signals to adjust the characteristics of the mixing buses. A plurality of input channels (110) that are selectively supplied to (112) and a plurality of output channels (116) that are provided corresponding to each of the mixing buses (112) and that adjust and output the characteristics of each of the mixed signals. ), A function for recording the supplied signal in the storage medium (34), and a function for reproducing and outputting the signal stored in the storage medium (34), Recording selection means (120) for selecting one of the output signals of the output channel (116) and supplying the selected output signal to the recorder (12); Output destination selection means (108) for supplying the reproduced signal to any one of the plurality of input channels (110), and cue signal output means for outputting the supplied signal as a cue signal (CUE signal) 114) and an audio mixer having a processing device (22), the output signal of the plurality of input channels (110), the output signal of the plurality of output channels (116), and the recording A step (SP28) of supplying the instructed signal to the cue signal output means (114) in response to a cue instruction (pressing the CUE button or CUE key) of any one of the output signals of the selection means. The processing apparatus (22) is executed.
Further, in the audio mixer according to claim 4, the cue signal control means selects the output signal of the recording selection means and the reproduction signal reproduced by the recorder from among the signals to be selected by the cue instruction. It is a selection target.

Thus, according to the configuration in which the output signal of the recording selection means can be selected in the cue signal control means, the input signal of the recorder can be monitored in the same manner as the signal of the normal input / output channel.
In addition, a playback signal from a recorder to be selected can be selected as an alternative to the output signal of the recording selection means, and the playback signal of the recorder can be monitored.

1． Example configuration
1.1. Hardware Configuration Next, the hardware configuration of the digital mixer 1 according to an embodiment of the present invention will be described with reference to FIG.
In the figure, reference numeral 2 denotes a display device, which is constituted by a flat panel display having a resolution of, for example, “1024 × 768”. In addition, the display device 2 includes a touch panel, and is configured to detect an operation such as pressing a displayed button. An electric fader group 4 adjusts the signal level of each input / output channel based on the operation of the operator. Furthermore, the electric fader group 4 is configured such that when an operation command is supplied via the bus line 18, the operation position is automatically set. In addition, although mentioned later for details, the electric fader group 4 is comprised from several (P system | strain) electric faders 244-1 to 244-P (refer FIG. 2).

  Reference numeral 6 denotes an operator group, which includes various switches, knobs, and LED keys, and the blinking state of the LEDs built in the LED keys is set via the bus line 18. The knob includes knobs 249-1 to 249 -P (see FIG. 2) for setting the left and right volume balance of each input / output channel. The operation amounts of these knobs are output via the bus line 18. A waveform I / O unit 8 inputs and outputs analog audio signals or digital audio signals.

  In the present embodiment, various audio signal mixing processing and effect processing are all performed by digital processing. However, the audio signal input from the outside and the audio signal to be output to the outside can be both digital and analog signals. For this reason, the waveform I / O unit 8 performs processing such as conversion between an analog signal and a digital signal and conversion between a plurality of types of digital signals.

  Next, reference numeral 10 denotes a signal processing unit, which is constituted by a group of DSPs (digital signal processors). The signal processing unit 10 performs mixing processing and effect processing on the digital audio signal supplied via the waveform I / O unit 8 and outputs the result to the waveform I / O unit 8. A USB / I / O unit 14 writes and reads various data to and from the USB memory 34 inserted into the connector 16. Reference numeral 12 denotes a built-in recorder that performs MP3 compression processing on the digital audio signal supplied from the signal processing unit 10 and writes the result into the USB memory 34 using the USB / I / O unit 14. The MP3 format data is read from the USB memory 34 using the I / O unit 14 and subjected to decompression processing, and the decompressed digital audio signal is supplied to the signal processing unit 10.

  Here, the data input / output to / from the USB memory 34 includes not only audio signals input / output via the built-in recorder 12 but also setting data of the signal processing unit 10 input / output via the bus line 18. included. These data are recorded in the USB memory 34 in a predetermined file system and a predetermined file format so that they can be read / edited by a normal computer or the like. The other I / O unit 20 inputs and outputs data to and from various external devices. A CPU 22 controls each unit via the bus line 18 based on a control program described later. A flash memory 24 stores the control program in its internal program area. A RAM 28 is used as a work memory for the CPU 22.

  In the mixing system of this embodiment, various parameters (current data) for controlling the current operation of the system are stored in a predetermined area (current area) of the RAM 28. That is, the contents of the current data are updated by operating the electric fader group 4 or the operator group 6, and based on the current data, mixing processing and effect processing in the signal processing unit 10, the display state in the display unit 2, The blinking state of the LED of the operator group 6 and the position of each fader of the electric fader group 4 are controlled.

1.2. Example of mixing algorithm configuration
1.2.1. Overall Configuration Next, the contents of an algorithm realized in the signal processing unit 10 and the like will be described with reference to FIG. The algorithm is realized by a program set in the signal processing unit 10, and the program is loaded from the flash memory 24 or the like into the signal processing unit 10 under the control of the CPU 22.
In FIG. 3, reference numeral 102 denotes an analog input unit. When an analog audio signal of a microphone level or a line level is received, it is converted into a digital audio signal and supplied to the signal processing unit 10. Reference numeral 104 denotes a digital input unit. When a digital audio signal is received, it is converted into a format inside the signal processing unit 10. An analog output unit 122 converts the digital audio signal supplied from the signal processing unit 10 into an analog audio signal and outputs the analog audio signal to the outside. A digital output unit 124 converts the digital audio signal in the internal format supplied from the signal processing unit 10 into a digital audio signal in a predetermined format (AES / EBU, ADAT, TASCAM, etc.) and outputs the digital audio signal.

  The configuration described above is realized by the waveform I / O unit 8 which is hardware separate from the signal processing unit 10 and various cards inserted therein. The built-in recorder 12 in FIG. The recorder 12, the USB / I / O unit 14, the connector 16, and the USB memory 34, but the other configuration is realized by a program that operates in the waveform processing unit 10. Reference numeral 110 denotes an input channel adjustment unit, which adjusts the volume, sound quality, and the like for the input channels of up to “24” channels based on the operation of the electric faders and operation elements on the operation panel.

  Reference numeral 108 denotes an input patch unit. A plurality of blocks from each block such as the input units 102 and 104 and the built-in recorder 12 are input to the input (receiving side) of each input channel of the input channel adjustment unit 110 according to a user instruction. Any one of the outputs (transmission side) is connected, and a digital audio signal from the connected block is selectively supplied to each input channel. Reference numeral 112 denotes a MIX bus group composed of “12” MIX buses. In each MIX bus, the digital audio signal of each input channel supplied to the MIX bus is mixed. In each input channel, whether or not an audio signal is supplied to the MIX bus can be set for each MIX bus, and in the case of supply, the send level for each MIX bus is also set independently for each system. be able to.

  Next, reference numeral 116 denotes a MIX output channel adjustment unit, which performs level adjustment, sound quality adjustment, and the like on the mixing result in each MIX bus. Reference numeral 118 denotes an output patch unit, which outputs a plurality of output channels of the MIX output channel adjustment unit 116 (transmission side) to the input (reception side) of each output port of each output unit 122, 124 according to a user instruction. ), And selectively supplies a digital audio signal from the connected output channel to each output port. A recording selector 120 and a recording selector 120 select a channel to be recorded in the USB memory 34 via the built-in recorder 12 from the MIX output channels.

  By the way, in the digital mixer 1, there are two types of signals that are monitored by the user using headphones or the like (hereinafter referred to as user sound emission signals), namely “monitor signal” and “CUE signal”. Here, the monitor signal is a signal monitored in a normal state, and the CUE signal is a signal monitored temporarily. Also, the CUE signal and the monitor signal are generated by mixing one or a plurality of audio signals, respectively. A signal that is subject to mixing to generate a CUE signal is referred to as a “CUE target signal”, and a signal that is subject to mixing to generate a monitor signal is referred to as a “monitor target signal”.

  Reference numeral 114 denotes a CUE bus, which mixes one or a plurality of signals selected as CUE target signals among the signals of each unit in the digital mixer 1 and outputs the mixing result as a CUE signal. Here, the signals that can be selected as the CUE target signal are, for example, signals of the respective units of the input channel adjustment unit 110 and the MIX output channel adjustment unit 116 and input / output signals to the built-in recorder 12. Reference numerals 126 and 128 denote CUE on / off switching units of the built-in recorder 12 that switch whether the output signal and input signal of the built-in recorder 12 are supplied to the CUE bus 114 as CUE target signals. However, only one of the CUE on / off switching units 126 and 128 can be set to the on state, and if one is set to the on state, the other is forcibly set to the off state.

  Reference numeral 130 denotes a monitor selector that selects one or a plurality of signals as signals to be monitored from the signals of the respective units in the digital mixer 1. Here, the signals that can be selected as the monitoring target signal are a part of output signals of the analog input unit 102, an output signal of the built-in recorder 12, an output signal of the MIX output channel, and the like. Reference numeral 132 denotes a monitor mixer, which mixes one or a plurality of monitoring target signals selected by the monitor selector 130 and outputs the result as a monitor signal. Reference numeral 134 denotes a switching unit that selects one of a monitor signal and a CUE signal as a sound emission signal for the user. However, when the CUE signal is selected, the monitor signal is not completely silenced, but the result of slightly mixing the monitor signal with the CUE signal can be used as the sound emission signal for the user.

1.2.2. Input Channel Unit Next, details of the algorithm configuration in the input channel adjustment unit 110 will be described with reference to FIG. In the figure, reference numeral 110-n denotes an nth input channel adjustment unit, which performs sound quality / volume adjustment in the nth input channel (1 ≦ n ≦ 24). Accordingly, the input channel adjustment unit 110 is configured by the “24” -th nth input channel adjustment unit 110-n. In the n-th input channel adjustment unit 110-n, reference numeral 150 denotes a sound quality adjustment unit that performs limiter processing, compressor processing, equalizer processing, and the like on the n-th input channel. A volume adjusting unit 152 adjusts the gain of the audio signal of the nth input channel. Reference numeral 154 denotes an on / off switching unit which switches on / off of the audio signal of the nth input channel.

  Reference numerals 160-1 to 160-12 denote signal switching units, which select either “pre-fade” or “post-fade” as audio signals that can be output from the n-th input channel to the “12” MIX buses. That is, when “pre-fade” is selected, the output signal of the sound quality adjustment unit 150 is selected, and when “post-fade” is selected, the output signal of the on / off switching unit 154 is selected. Reference numerals 162-1 to 162-12 denote send level adjusting units that adjust the gain, that is, the send level of the signal output to each MIX bus. Reference numerals 164-1 to 164-12 denote send on / off switching units, which set on / off states of the audio signal supply to the respective MIX buses. Reference numeral 158 denotes a CUE on / off switching unit, which switches whether to supply the audio signal of the nth input channel to the CUE bus 114 as a CUE target signal. A signal switching unit 156 selects an audio signal that can be output to the CUE bus 114 from either “pre-fade” or “post-fade”.

1.2.3. Output Channel Unit Next, details of the algorithm configuration in the MIX output channel adjustment unit 116 will be described with reference to FIG.
In the figure, reference numeral 116-m denotes an m-th MIX output channel adjustment unit, which adjusts sound quality and volume in the m-th MIX output channel (1 ≦ m ≦ 12). Accordingly, the MIX output channel adjustment unit 116 is configured by the “12” -th m-th MIX output channel adjustment unit 116-m. In the m-th MIX output channel adjustment unit 116-m, a sound quality adjustment unit 172 performs a limiter process, a compressor process, an equalizer process, and the like in the m-th MIX output channel. A volume adjustment unit 178 adjusts the output gain of the output channel. Reference numeral 180 denotes an on / off switching unit that switches the on / off state of the m-th MIX output channel.

  A signal switching unit 176 selects an audio signal that can be output from the m-th MIX output channel to the CUE bus 114 from one of “pre-fade” and “post-fade”. That is, when “prefade” is selected, the output signal of the sound quality adjustment unit 172 is selected, and when “postfade” is selected, the on / off switching unit 180 is selected. A CUE on / off switching unit 174 switches whether to supply the audio signal of the m-th MIX output channel to the CUE bus 114 as a CUE target signal.

1.3. Panel Configuration Next, a plan view of the main part of the operation panel of the digital mixer 1 is shown in FIG. As described above, the digital mixer 1 has “24” input channels, but these input channels are divided into “2” layers of “12” channels. The “12” MIX output channels are grouped into a “1” layer (master layer). Reference numerals 204, 206, and 208 denote layer keys that selectively select any one of these layers. Also, these keys incorporate LEDs, and the LEDs related to the selected layer are turned on. In the present specification, all other components having the name “key” have a built-in LED, and when the parameter relating to the key is turned on, the LED is turned on. Reference numerals 220 to 226 denote cursor buttons, which move the cursor displayed on the display device 2 in the vertical and horizontal directions. 230 is an increment key, 232 is a decrement key, and 233 is a jog dial, which increases or decreases the numerical value displayed at the cursor position. Reference numeral 234 denotes an ENTER key, which determines a numerical value displayed at the cursor position.

  Reference numerals 240-1 to 240-P denote channel strips, and each channel strip is assigned to an input / output channel belonging to the selected layer, a channel that needs to be operated regardless of the selected state of the layer, and the like. In the channel strip 240-1, 242-1 is a CUE key, and whether or not the audio signal of the corresponding input / output channel is supplied to the CUE bus 114 as a CUE target signal, that is, CUE on / off switching units 158 and 174 ( The on / off state of FIG. Reference numeral 244-1 denotes an electric fader that adjusts the volume of the corresponding input / output channel, that is, the gain of the volume adjusters 152 and 178. Reference numeral 246-1 denotes an on / off key, which sets an on / off state in the on / off switching units 154 and 180 of the corresponding input / output channel. Reference numeral 248-1 denotes a SEL key, which alternatively sets the input / output channel related to the channel strip 240-1 to the “selected state”.

  Here, the “selected state” means a state selected as a channel on which detailed settings for the sound quality adjusting unit 150, the send level adjusting units 162-1 to 162-12, and the like are to be performed. Reference numeral 249-1 denotes a knob. When the channel strip 240-1 is assigned to an input channel, the PAN of the input channel is set. In the other channel strips 240-i (1 ≦ i ≦ P), similarly to the channel strip 240-1, the CUE key 242-i, the electric fader 244-i, the on / off key 246-i, and the SEL. Keys 248-i and knobs 249-i are each provided.

  Reference numeral 250 denotes a headphone terminal, which emits a sound emission signal (CUE signal or monitor signal) for the user via a headphone (not shown). Reference numeral 252 denotes a volume control knob that adjusts the level of an audio signal supplied to the headphones. Reference numeral 260 denotes a monitor selection switch group, which toggles the on / off state of each signal in the monitor selector 130 (see FIG. 3).

2． Operation of the embodiment
2.1. Variables and Parameters Hereinafter, the operation of this embodiment will be described. First, temporary variables and parameters used in this embodiment will be described.
(1) Channel number c (or ch): This is a number given to an input / output channel or the like. First, channel numbers c of “1” to “24” are given to the first to 24th input channels, respectively. Also, channel numbers c of “25” to “36” are given to the first to twelfth MIX output channels, respectively. Further, the channel number c of “37” is given to the input end of the built-in recorder 12 and “38” is given to the output end.

(2) CUE on parameter CON (c): This is whether or not the CUE on / off switching units 126, 128, 158, and 174 of the channel c are in the on state, that is, the audio signal of the channel c is selected as the CUE target signal. When CON (c) is set to “1”, the CUE on / off switching unit for channel c is turned on, and the audio signal for channel c is supplied to the CUE bus 114. . When CON (c) is set to “0”, the CUE on / off switching unit of channel c is turned off.

(3) Queue mode MC: This is a parameter set to either “0” (single CUE mode) or “1” (MIX / CUE mode). In “0” (single CUE mode), only the audio signal of “1” channel can be selected as a CUE target signal, and in “1” (MIX / CUE mode), multiple channels can be selected under certain conditions. An audio signal can be selected as a CUE target signal. Note that the user can appropriately designate which queue mode MC is selected. Here, the “certain condition” satisfies either “all CUE target signals are input channel audio signals” or “all CUE target signals are MIX output channel audio signals”. That is. Therefore, all of one or a plurality of audio signals selected as CUE target signals at an arbitrary timing belong to a common group of any one of “input channel”, “MIX output channel”, and “recorder”. Will be. This group is referred to as a “CUE target group”. Here, when one or a plurality of audio signals of a certain group are selected as CUE target signals, an operation of selecting an audio signal of a group different from that group as a new CUE target signal is performed. All of the selection of the certain group is released, the voice signal of the other group is selected as a new CUE target signal, and the CUE target group is shifted from the certain group to the another group.

(4) CUE state CS: This is a parameter representing the CUE target group of the audio signal currently selected as the CUE target signal. That is, it is set to “1” when the CUE target group is an input channel, “2” when it is a MIX output channel, and “3” when it is a recorder. Further, when no audio signal is selected as the CUE target signal, the CUE state CS is set to “0”.

2.2. CUE key-on event processing (Figure 6)
2.2.1. Switching from ON state to OFF state When the CUE key 242-i in the channel strip 240-i is pressed, the CUE key on event processing routine shown in FIG. 6 is started. When the process proceeds to step SP2 in FIG. 6, the channel c related to the CUE key 242-i is specified based on the layer number LN and the channel strip number i. This channel c is either an input channel or a MIX output channel. Next, when the process proceeds to step SP4, it is determined whether or not the CUE on parameter CON (c) is “0” (off state).

  If the audio signal of channel c is a CUE target signal before the CUE key 242-i is pressed, the CUE on parameter CON (c) is “1” (on state), and therefore “NO” in step SP4. And the process proceeds to step SP6. Here, the CUE on parameter CON (c) is changed to “0” (off state). Next, when the process proceeds to step SP8, it is determined whether or not the queue mode MC is “0”. If the queue mode MC is “0” (single CUE mode), “YES” is determined in step SP8, and the process proceeds to step SP12.

  If the queue mode MC is “0” (single CUE mode) as in this case, the CUE on parameter CON (c) of the channel c has been changed from the on state to the off state in the previous step SP6. Therefore, there should be no signal selected as the CUE target signal. Therefore, in step SP12, the switching unit 134 selects the monitor signal as the user sound emission signal. Next, when the process proceeds to step SP14, the CUE state CS is set to “0” (no group), and the process of this routine ends.

  On the other hand, if the queue mode MC is “1” (MIX / CUE mode), “NO” is determined in step SP8, and the process proceeds to step SP10. Here, it is determined whether or not the CUE on parameter CON of all channels that can be selected as the CUE target signal is “0” (off state). For this determination process, it is sufficient to determine the CUE on parameter CON (c) indicated by the CUE state CS, and it is not always necessary to check all channels. Here, if the CUE on parameter CON (c) relating to at least one channel is “1” (ON state), it is determined as “NO”, and the processing of this routine is ended. Therefore, thereafter, the CUE signal is continuously generated and emitted based on the remaining audio signal in which the CUE on parameter CON is on. On the other hand, if the CUE on parameter CON of all channels is “0” (off state), “YES” is determined in step SP10, and the processes of steps SP12 and SP14 described above are executed.

2.2.2. Switching from OFF state to ON state When the audio signal of channel c is not a CUE target signal before the CUE key 242-i is pressed, the CUE ON parameter CON (c) is “0” (OFF state). . Accordingly, “YES” is determined in step SP4, and the process proceeds to step SP16. Here, it is determined whether or not the current CUE state CS matches the group to which the channel c belongs, that is, whether or not the audio signal of the CUE target group is selected as the CUE target signal. .

  If "NO" is determined here, the process proceeds to step SP18, and the CUE on parameter CON of all channels is cleared to "0" (off state). For this clearing process, it is sufficient to clear the CUE on parameter CON (c) in the on state of the group indicated by the CUE state CS, and it is necessary to always write “0” in the CUE on parameter CON (c) of all channels. There is no. Next, when the process proceeds to step SP20, the CUE signal is selected as a sound emission signal for the user in the switching unit 134. Next, when the process proceeds to step SP22, the group number to which the channel c belongs is set in the CUE state CS. On the other hand, when the channel c belongs to the group related to the CUE state CS, “YES” is determined in step SP16, and the above steps SP18 to SP22 are skipped.

  Next, when the process proceeds to step SP24, it is determined whether or not the queue mode MC is “0” (single CUE mode). If "YES" is determined here, the process proceeds to step SP28, the CUE on parameter CON (c) is set to "1" (on state), and the CUE on parameter CON related to all other channels is set. Set to “0” (off state). Even if there is a channel whose CUE on parameter CON (c) is “1”, there is only one channel in the group indicated by the CUE state CS. Here, even the CUE on parameter CON (c) of that channel is set to “0”. That's enough. On the other hand, if the queue mode MC is “1” (MIX / CUE mode), the process proceeds to step SP26, and the CUE on parameter CON (c) is set to “1” (on state). In step SP26, since the CUE on parameter CON related to the other channel is not changed, the audio signal of channel c is mixed with the other audio signal whose CUE on parameter CON is on, and the result is the CUE signal. Is output as

2.3. Display of various setting screens (Fig. 7)
2.3.1. Recorder setting screen 300
When the user performs a predetermined operation, a recorder setting screen 300 shown in FIG. In the recorder setting screen 300, reference numeral 310 denotes a recording signal setting unit, which sets various parameters relating to the recording signal recorded in the USB memory 34. Reference numeral 312 denotes a left channel designation unit, and 314 denotes a right channel designation unit, which designates MIX output channels one by one as a supply source of left and right audio signals to be recorded in stereo. Reference numeral 316 denotes a recording level display section that displays the recording levels of the left and right recording signals. Reference numeral 318 denotes a recording gain setting unit that sets recording gains of the left and right recording signals.

  Reference numeral 320 denotes a reproduction signal setting unit that sets parameters relating to a reproduction signal reproduced from the USB memory 34. Reference numeral 322 denotes a left channel designation unit, and 324 denotes a right channel designation unit, which can designate one or a plurality of input channels as supply destinations of left and right reproduction signals. However, since there is not enough space to display only one channel number in the channel designation portions 322 and 324, when a plurality of input channels are designated, only the smallest channel number is displayed, and then “+”. Is displayed to indicate the presence of other input channels.

  In the example shown in the drawing, “CH15 +” is displayed in the left channel designation unit 322, so that the reproduction signal of the left channel is supplied to the fifteenth input channel and to at least one other input channel. I understand that. Similarly, since “CH16 +” is displayed in the right channel designating unit 324, the right channel audio signal can be supplied to the sixteenth input channel and to at least one other input channel. I understand. A reproduction level display unit 326 displays the levels of the right and left reproduction signals.

  Next, reference numeral 330 denotes a recording CUE button, which switches the on / off state of the CUE on / off switching unit 128 when pressed. Reference numeral 336 denotes a reproduction CUE button which switches the on / off state of the CUE on / off switching unit 126 when pressed. The CUE buttons 330 and 336 are turned on when the corresponding CUE on / off switching units 126 and 128 are set to the on state (indicated by hatching in the drawing). However, as described above, since only one of the CUE on / off switching units 126 and 128 can be set to the on state, only one of the CUE buttons 330 and 336 is lit.

  Reference numerals 332 and 334 denote operation state display units. When the audio signal is recorded on the USB memory 34, the operation state display unit 332 is turned on. When the audio signal is reproduced from the USB memory 34, the operation state display unit 334 is turned on. When neither recording / reproduction is performed on the USB memory 34, both the operation state display units 332 and 334 are turned off. Since recording and playback on the USB memory 34 cannot be performed at the same time, the operation state display sections 332 and 334 are not lit at the same time.

  Next, a recording / playback operation unit 340 displays and operates various parameters relating to recording / playback. In the recording / playback operation unit 340, a title display unit 342 displays a title (song name) of an audio file related to recording / playback. A player name display unit 344 displays the player name of the music recorded in the audio file. A time code display unit 346 displays a time code representing the current recording / playback position. A compression format display unit 348 displays the compression format of the audio file. An input bit rate display unit 350 displays the bit rate of the audio signal input from the recording selector 120 to the built-in recorder 12.

  A rewind button 352 moves the recording / playback position of the built-in recorder 12 forward on the time axis. A stop button 354 stops the recording / playback operation of the built-in recorder 12. Reference numeral 356 denotes a reproduction / pause button that reproduces and pauses an audio signal. 358 is a fast-forward button that moves the recording / playback position backward on the time axis. Reference numeral 360 denotes a recording button, which starts the recording operation of the built-in recorder 12. Reference numeral 362 denotes a playback mode setting unit. The user can select various playback modes by pressing this button. Reference numeral 366 denotes a playback mode display section that displays the currently selected playback mode. 364 is a recording rate setting unit, and the user can select various recording rates by pressing this button. Reference numeral 368 denotes a recording rate display section, which displays the currently selected recording rate.

2.3.2. Output destination setting window 370
When the user presses the left channel designation unit 322 or the right channel designation unit 324 on the recorder setting screen 300, setting data for the input patch unit 108 is read from the current area in the RAM 28, and based on the read result, An output destination setting window 370 is displayed in the same screen so as to be adjacent to the recorder setting screen 300 (or so as to overlap the recorder setting screen 300). The setting window 370 shown in the figure is a setting window for the right channel that is displayed when the right channel designating unit 324 is pressed.

  In the output destination setting window 370, reference numeral 372 denotes an output destination selection button group, which includes “24” output destination selection buttons corresponding to the first to 24th input channels. Of these output destination selection buttons, the hatched buttons (the 16th and 20th input channels in the illustrated example) are in an on state, that is, the corresponding input channel is selected as the output destination of the reproduction signal. Note that the on / off state (initial setting state) of each output destination selection button at the time when the output destination setting window 370 is displayed is determined based on the setting data at that time for the input patch unit 108. That is, in the input patch unit 108, for the input channel for which the right channel output of the built-in recorder is set as the connection destination, the corresponding output destination selection button is initially set to the on state, and the output destination selection of other input channels is performed. The button is initially set to the off state.

  Each time the output destination selection button is pressed, its on / off state is toggled. Accordingly, the user can set any one or more of the “24” output destination selection buttons to the on state. Reference numeral 374 denotes an OK button. When this button is pressed, the on / off state of each output destination selection button is reflected in the setting data of the input patch section 108 in the current data, and the output destination setting window 370 is closed. Reference numeral 376 denotes a cancel button. When this button is pressed, the output destination setting window 370 is closed without changing the setting of the input patch unit 108. The setting window 370 for the right channel has been described above. However, when the user presses the left channel designation unit 322, a similar setting window is displayed for the left channel. A process of reflecting the state of the output destination selection button group 372 in the current data when the OK button 374 is pressed will be described later.

2.3.3. Input source setting window 380
Further, when the user presses the left channel designation unit 312 or the right channel designation unit 314 on the recorder setting screen 300, input is performed within the same screen so as to be adjacent to the recorder setting screen 300 (or to overlap the recorder setting screen 300). An original setting window 380 is displayed. In the input source setting window 380, reference numeral 382 denotes an input source selection button group, which includes “12” input source selection buttons corresponding to the first to twelfth input channels. Of these input source selection buttons, one hatched button (the eighth MIX output channel in the illustrated example) is in an ON state, that is, the corresponding MIX output channel is selected as the input source.

  Of these input source selection buttons, only one button can be turned on. That is, when any input source selection button that is currently in an off state is pressed, the button is changed to an on state, and all other input source selection buttons are turned off. When one button that is currently on is pressed, all the buttons are turned off as a result of the button being turned off. Reference numeral 384 denotes an OK button. When this button is pressed, the on / off state of each input source selection button is reflected in the setting of the recording selector 120, and the input source setting window 380 is closed. Reference numeral 386 denotes a cancel button. When this button is pressed, the input source setting window 380 is closed without changing the setting of the recording selector 120.

2.4. Recorder CUE button on event processing (Figure 8)
When the recording CUE button 330 or the reproduction CUE button 336 is pressed on the recorder setting screen 300, the recorder CUE button / on event processing routine shown in FIG. 8 is started. When the process proceeds to step SP42 in FIG. 8, the channel number (“37” or “38”) on the pressed side of the CUE buttons 330 and 336 is set to the channel c. Next, when the process proceeds to step SP44, it is determined whether or not the CUE on parameter CON (c) is “0”.

  If the CUE button 330 or 336 pressed this time is a CUE target signal before being pressed, the CUE on parameter CON (c) is “1” (on state). Determination is made, and the process proceeds to step SP46. Here, the CUE on parameter CON (c) is changed to “0” (off state). Next, in step SP48, a monitor signal is selected as a sound emission signal for the user. This is because there is no CUE target signal and the CUE signal becomes silent. Next, when the process proceeds to step SP50, the CUE state CS is set to “0” (no group), and this routine ends.

  On the other hand, if the CUE button 330 or 336 pressed this time is not a CUE target signal before being pressed, “YES” is determined in step SP44, and the process proceeds to step SP52. Here, the CUE on parameter CON of all channels is set to “0” (off state). Next, when the process proceeds to step SP54, the switching unit 134 selects a CUE signal as a sound emission signal for the user. Next, when the process proceeds to step SP56, the CUE state CS is set to “3” (recorder). Next, when the process proceeds to step SP58, the CUE on parameter CON (c) related to the channel c is set to “1” (on state).

  Only the audio signal of the channel c is selected as the CUE target signal by the processing of the above steps SP52 to SP58. In other words, the CUE target signal is supplied to the CUE bus 114 from only one of the CUE on / off switching units 126 and 128, and the CUE target signal becomes a CUE signal as it is. Thus, when the CUE buttons 330 and 336 related to the built-in recorder 12 are pressed, whether the cue mode MC is “0” (single CUE mode) or “1” (MIX / CUE mode) Regardless, only one audio signal is selected as the CUE target signal.

2.5. Event processing of OK button 374 (FIG. 9)
Next, processing when the OK button 374 in the output destination setting window 370 is pressed will be described. When the button is pressed, an OK button event processing routine shown in FIG. 9 is started. In the figure, when the processing proceeds to step SP102, the channel number ch specifying the channel to be changed in the setting data related to the input patch unit 108 is set to “1”. Next, when the process proceeds to step SP104, it is determined whether or not the button corresponding to the channel ch in the output destination selection button group 372 is on. If "YES" is determined here, the process proceeds to step SP106, and the output of the built-in recorder 12 (the side corresponding to the setting window 370 of the right channel or the left channel) is input to the input channel related to the channel number ch. Are connected, and the setting data related to the input channel among the setting data related to the input patch unit 108 in the current data is updated so that the audio signal from the output is supplied to the input channel.

  On the other hand, if the button corresponding to the channel number ch is in the OFF state, “NO” is determined in step SP104, and the process proceeds to step SP108. Here, it is determined whether or not the output of the built-in recorder 12 (the side corresponding to the setting window 370) is connected to the input of the input channel indicated by the channel number ch in the setting data related to the input patch unit 108 of the current current data. Determined. If "YES" is determined here, the process proceeds to step SP110, and the current data is set so that nothing is connected to the input of the input channel and no audio signal is supplied (a silence signal is supplied). Among the setting data of the input patch unit 108, the setting data related to the input channel is updated. On the other hand, if “NO” is determined in step SP108, step SP110 is skipped. Therefore, in such a case, the setting data of the input patch unit 108 is not updated for the input channel indicated by the channel number ch, and the original connection is maintained.

  Next, when the process proceeds to step SP112, the channel number ch is incremented by “1”. Next, when the process proceeds to step SP114, it is determined whether or not the channel number ch exceeds “24” which is the maximum value of the channel number of the input channel. If “NO” is determined here, the process returns to step SP104, and the processes of steps SP104 to SP112 are repeated for the new channel number ch. When the channel number ch exceeds “24”, the processing of steps SP104 to SP112 is executed for all the input channels, and thus this routine ends.

  Thus, in this embodiment, when the OK button event processing routine (FIG. 9) is executed, a button that is set to ON in the output destination selection button group 372 corresponds to that button. The input patch unit 108 is set so that a reproduction signal from the built-in recorder 12 is supplied to the input channel. For the button set to the off state, the input patch unit 108 is set to “a state in which no reproduction signal is supplied” from the built-in recorder 12 for the input channel corresponding to the button.

  Here, the latter “state in which no reproduction signal is supplied” means state A: a state in which some audio signal other than the reproduction signal is supplied to the input channel, and state B: (reproduction to the input channel) It is conceivable that both audio signals (including signals) are not supplied at all. However, in the output destination setting window 370, whether the input channel is in the state A or B, and if it is in the state A, which audio signal is specifically supplied to the input channel. Cannot be displayed or set. The output destination setting window 370 is specialized in displaying and setting only “to which input channel the reproduction signal from the built-in recorder 12 is supplied”.

In this way, in the output destination setting window 370, by displaying only the setting related to one output of the built-in recorder 12 of the input patch unit 108, unnecessary information is hidden for the setting of the output. Easy to set up. With this configuration, the user can set a plurality of input channels as output destinations using the output destination setting window 370 while performing various parameter settings related to the built-in recorder 12 in the recorder setting screen 300. set according to the built recorder 12 can be performed in an integrated manner. Further, the window 370 can be made compact, and the recorder setting screen 300 and the output destination setting window 370 can be displayed adjacent to each other in one screen of the display device 2. According to such a configuration, the user can set the output destination using the output destination setting window 370 while performing various settings of the built-in recorder 12 and the like in the recorder setting screen 300, and the settings related to the built-in recorder 12 can be set. You can do it in one screen. In order to assign an audio signal not related to the built-in recorder 12 to an input channel, a dedicated setting screen (not shown) for setting the state of the input patch unit 108 is displayed on the display 2 and the setting is made on this screen. It is good to do.

3． Modifications The present invention is not limited to the above-described embodiments, and various modifications can be made as follows, for example.
(1) In the above embodiment, various processes are performed by the program executed by the CPU 22, but only this program is stored and distributed in a recording medium such as a CD-ROM or a memory card, or distributed through a transmission path. You can also

(2) In the above embodiment, the USB memory 34 is used as the “storage medium”, but the storage medium is not limited to the USB memory, and various non-volatile memories such as a compact flash (registered trademark) and an SD memory, A magnetic storage medium or the like may be used.

(3) Also, the recorder setting screen 300 of the above embodiment sets the contents of the built-in recorder 12 as “specific audio signal supply source” and “specific signal output unit”. However, the “specific audio signal supply source” and the “specific signal output unit” are not limited to the built-in recorder 12, but any input port of the analog input unit 102 or the digital input unit 104, a built-in effector, Any specific audio signal supply source that can output an audio signal, such as an oscillator, an input channel, an output channel, a mixing bus, and a cascade input unit, can be used.

(4) In the above embodiment, among the buttons constituting the output destination selection button group 372, the button that is in the OFF state is in the state A (a state in which some audio signal other than the reproduction signal is supplied to the input channel. ) Or state B (a state in which no audio signal is supplied to the input channel), but the display for distinguishing between states A and B has not been performed in the output destination setting window 370. However, the states A and B may be distinguished in the setting window 370 by giving different display colors to the buttons according to the states A and B.

(5) Further, the “supplying means” and “signal supply unit” that supply the audio signal to the built-in recorder 12 (or “specific audio signal supply source”, “specific signal output unit”) are limited to the input patch 108. The output patch 118 may be used instead. Further, the patch is not limited to the input patch or the output patch of the audio mixer, and may be any patch that performs connection from the input (transmission side) to the output (reception side). Further, the present invention can be applied to any of audio devices including a patch, for example, an audio interface for PC, an effector for imparting effects, an amplifier for signal amplification, and the like.

It is a hardware block diagram of the digital mixer 1 of one Example of this invention. 2 is a plan view of a main part of an operation panel of the digital mixer 1. FIG. It is a block diagram of the algorithm implement | achieved in the signal processing part 10 grade | etc.,. It is a detailed block diagram of the algorithm in the nth input channel adjustment part 110-n. It is a detailed block diagram of the algorithm in the m-th MIX output channel adjustment part 116-m. It is a flowchart of a CUE key on event processing routine. 6 is a diagram illustrating an example of a display screen displayed on the display device 2. FIG. It is a flowchart of a recorder CUE button on event processing routine. It is a flowchart of an OK button event processing routine.

2: Display, 4: Electric fader group, 6: Operator group, 8: Waveform I / O unit, 10: Signal processing unit, 12: Built-in recorder (specific audio signal supply source), 14: USB I / O Part, 16: connector, 18: bus line, 20: other I / O part, 22: CPU (processing device), 24: flash memory, 28: RAM, 32: monitor for operator, 34: USB memory (storage medium) ), 102: analog input unit, 102, 104: input unit (audio signal supply source), 104: digital input unit, 108: input patch unit (input channel assignment unit, output destination selection unit), 110: input channel adjustment unit 110-n: nth input channel adjustment unit, 112: MIX bus group (mixing bus), 114: CUE bus (queue signal output means), 116: MIX output channel adjustment unit, 11 : Output patch section, 120: Recording selector (recording selection means), 122: Analog output section, 124: Digital output section, 126, 128, 158, 174: CUE on / off switching section, 130: Monitor selector, 132: Monitor mixer 134: switching unit, 150: sound quality adjusting unit, 152: volume adjusting unit, 154, 180: on / off switching unit, 156: signal switching unit, 160-1 to 160-12: signal switching unit, 162-1 to 162 12: Send level adjusting unit, 164-1 to 164-12: Send on / off switching unit, 172: Sound quality adjusting unit, 176: Signal switching unit, 178: Volume adjusting unit, 220-226: Cursor button, 230: Increment key, 232: Decrement key, 233: Jog dial, 234: ENTER key, 240-1 to 240-P: H Tunnel strip, 242-1 to 242-P: CUE key, 244-1 to 244-P: electric fader, 246-1 to 246-P: on / off key, 248-1 to 248-P: SEL key, 249-1 to 249 -P: knob, 250: headphone terminal, 252: volume control knob, 260: monitor selection switch group, 300: recorder setting screen, 310: recording signal setting unit, 312: left channel specifying unit, 314 : Right channel designation section, 316: recording level display section, 318: recording gain setting section, 320: reproduction signal setting section, 322: left channel designation section, 324: right channel designation section, 326: reproduction level display section, 330: Recording CUE button, 332, 334: operation state display section, 336: playback CUE button, 340: recording / playback operation section, 342: tie Toll display section 344: Performer name display section 346: Time code display section 348: Compression format display section 350: Input bit rate display section 352: Rewind button 354: Stop button 356: Play / pause Button, 358: fast forward button, 362: playback mode setting section, 366: playback mode display section, 368: recording rate display section, 370: setting window, 370: output destination setting window, 372: output destination selection button group (specific signal Assignment selection means), 374, 384: OK button, 376, 386: Cancel button, 380: Input source setting window, 382: Input source selection button group.

Claims (5)

A plurality of mixing buses that mix the supplied signals and output mixed signals;
A plurality of input channels that selectively adjust the characteristics of each input signal and selectively supply to the mixing bus;
A plurality of output channels provided corresponding to the mixing buses for adjusting and outputting the characteristics of the mixed signals;
A recorder having a function of recording a supplied signal in a storage medium, and a function of reproducing and outputting the signal stored in the storage medium;
Recording selection means for selecting any one of the output signals of the plurality of output channels and supplying the selected output signal to the recorder;
Output destination selection means for supplying a reproduction signal reproduced from the recorder to any one of the plurality of input channels;
Cue signal output means for outputting the supplied signal as a cue signal;
In response to a cue instruction for any one of the output signals of the plurality of input channels, the output signals of the plurality of output channels, and the output signal of the recording selection means, the instructed signal is output to the cue signal output means. An audio mixer, comprising: a cue signal control means for supplying to the apparatus. The cue signal control means includes an output signal of one or more input channels of the plurality of input channels, an output signal of one or more output channels of the plurality of output channels, and an output signal of the recording selection means. Out of the plurality of input channels, the output signal of one or more input channels of the plurality of input channels and the output of one or more output channels of the plurality of output channels in response to a cue instruction of any one of the signals 2. The audio mixer according to claim 1, wherein a signal or an output signal of the recording selection means is supplied to the cue signal output means. The cue signal control means is a cue of any one of the output signals of the plurality of input channels, the output signals of the plurality of output channels, the output signal of the recording selection means, and the reproduction signal reproduced by the recorder. 2. The audio mixer according to claim 1, wherein in response to an instruction, the instructed signal is supplied to the cue signal output means. A plurality of mixing buses that mix the supplied signals and output mixed signals;
A plurality of input channels that selectively adjust the characteristics of each input signal and selectively supply to the mixing bus;
A plurality of output channels provided corresponding to the mixing buses for adjusting and outputting the characteristics of the mixed signals;
A recorder having a function of recording a supplied signal in a storage medium, and a function of reproducing and outputting the signal stored in the storage medium;
Recording selection means for selecting any one of the output signals of the plurality of output channels and supplying the selected output signal to the recorder;
Output destination selection means for supplying a reproduction signal reproduced from the recorder to any one of the plurality of input channels;
Cue signal output means for outputting the supplied signal as a cue signal;
To select and cue any one of the output signals of the plurality of input channels, the output signals of the plurality of output channels, the output signal of the recording selection means, and the reproduction signal reproduced by the recorder. And cue signal control means for supplying the instructed signal to the cue signal output means,
It said cue signal control means, of the signal to be a selection target queue instruction for a reproduction signal reproduced by the output signal of the recorder of the recording selection means includes a feature to be alternatively selected target to Luo Diomikisa. A plurality of mixing buses that mix the supplied signals and output mixed signals;
A plurality of input channels that selectively adjust the characteristics of each input signal and selectively supply to the mixing bus;
A plurality of output channels provided corresponding to the mixing buses for adjusting and outputting the characteristics of the mixed signals;
A recorder having a function of recording a supplied signal in a storage medium, and a function of reproducing and outputting the signal stored in the storage medium;
Recording selection means for selecting one of the output signals of the plurality of output channels and supplying the selected output signal to the recorder;
Output destination selection means for supplying a reproduction signal reproduced from the recorder to any one of the plurality of input channels;
Cue signal output means for outputting a supplied signal as a cue signal;
A program applied to an audio mixer having a processing device,
In response to a cue instruction for any one of the output signals of the plurality of input channels, the output signals of the plurality of output channels, and the output signal of the recording selection means, the instructed signal is output to the cue signal output means. A program for causing the processing device to execute a process of supplying to a computer.

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