JP2005252328A - Mixing unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mixing unit whereby a CUE signal can be monitored in real time in the case of cueing up a signal of an input channel. <P>SOLUTION: When the input channel is cued up, a changeover switch SW is automatically switched to a position of a contact b and the CUE signal from a CUE bus 46 bypasses a CUE delay section 80. Thus, the signal of the real time input channel can be cued up. When an output channel is cued up, the changeover switch SW is automatically switched to a position of a contact a and the CUE signal from the CUE bus 46 is delayed by the CUE delay section 80. Thus, a time difference between sound heard from a main speaker and the CUE signal cued up by an operator can be absorbed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mixing apparatus that can detect a signal of an input channel or an output channel.

  Conventionally, the level and frequency characteristics of signals output from a large number of microphones or electrical / electronic musical instruments are adjusted, mixed and sent to a power amplifier or various recording devices, mixed into several mixing groups, and effects or performances. There is known a mixing device for sending out to a player. The operator who operates the mixing device adjusts the volume and tone of each instrument sound and singing audio signal to the state that seems to best represent the performance by operating various panel controls on the mixing console. doing. The mixing apparatus includes a plurality of input channels as input signal sequences, a bus for mixing signals output from the input channels, and an output channel that is an output sequence for outputting the mixed signals. Each input channel controls the frequency characteristics and mixing level of the input signal and outputs it to each mixing bus, and each mixing bus mixes the input signal and outputs it to the corresponding output channel. Each output channel controls and outputs the level of the mixing signal input from the mixing bus.

  In such a mixing apparatus, a CUE function for listening to a signal of an input channel or an output channel without changing the mixing state in the mixing means, and a signal output from the output channel and supplied to the speaker A monitoring function for monitoring is generally provided. In a mixing apparatus having a CUE function, a signal of a selected input channel or output channel is input to the CUE bus by turning on the CUE switch of the channel strip that controls each input channel or each output channel. The signal (CUE signal) is output from a headphone, a speaker, or the like which is a monitor sound system of the operator.

In this case, at least the output channel is provided with channel delay means for setting a channel delay for controlling the delay amount of the signal of the output channel in order to adjust the phase relationship with the signal of the other output channel. The channel delay of the output channel is adjusted to adjust the localization at the listening position of the audience in the sound output from the main speaker. In the monitor function, the signal from the channel delay means is used as a monitor signal so as to monitor the signal delayed by the channel delay means.
In addition, at the position of the operator of the mixing device, the sound heard from the main speaker is accompanied by a propagation delay, and the monitor signal is delayed in order to absorb the time difference from the monitor signal or CUE signal that the operator is listening to. There is provided a monitor & CUE delay unit comprising delay means for delaying and delay means for delaying the CUE signal.

  In this monitor & CUE delay unit, CUE delay is applied to the CUE signal even when the input channel signal is CUEed. However, since the signal of the input channel is a signal before mixing and is only a part of the acoustic signal output from the main speaker, there is no need to inspect the acoustic signal in phase with the acoustic signal. . Rather, when listening to an input channel signal, it is desirable to monitor a real-time CUE signal that has not been delayed. However, in a conventional mixing apparatus, when monitoring an input channel signal, a monitor & CUE delay unit is used. Due to the delay, there is a problem that the real-time CUE signal cannot be monitored.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a mixing apparatus that can monitor a real-time CUE signal when listening to an input channel signal.

  In order to achieve the above object, in the mixing apparatus of the present invention, when an input channel signal is selected by the CUE means, the delay of the input channel signal to be inspected is bypassed by the monitor / CUE delay means. This is the main feature.

  According to the present invention, when the input channel signal is selected by the CUE means, the monitor / CUE delay means is bypassed so that the input channel signal to be inspected is not delayed. It becomes possible to monitor a real-time CUE signal when listening to the signal.

  The purpose of monitoring a real-time CUE signal when listening to an input channel signal, and the input channel being monitored by bypassing the monitor / CUE delay means when the input channel signal is selected by the CUE means This has been achieved by ensuring that no signal is delayed.

FIG. 1 is a block diagram showing a configuration of a digital mixer which is an embodiment of the mixing apparatus of the present invention.
In the digital mixer 1 according to the embodiment of the present invention shown in FIG. 1, a CPU (Central Processing Unit) that controls the overall operation of the digital mixer 1 and generates a control signal in accordance with the operation of a mixing operator. ) 10, a rewritable nonvolatile flash memory 11 in which operation software such as a mixing control program executed by the CPU 10 is stored, and a RAM (Random Access Memory) 12 in which the work area of the CPU 10 and various data are stored. It has. Thus, by storing the operation software in the flash memory 11, the operation software can be upgraded by rewriting the operation software in the flash memory 11. Other devices such as a digital recorder are connected to the digital mixer 1 via other I / O 13 which is an input / output interface.

  All inputs and all outputs of the digital mixer 1 are performed by a waveform I / O (waveform data interface) 14. The waveform I / O 14 includes a plurality of analog input ports provided with AD converters for converting analog signals input from the outside into digital signals for input, and digital input ports for inputting digital signals from the outside. For this purpose, a plurality of analog output ports including a DA converter for converting a digital signal into an analog signal and a plurality of digital output ports for outputting a digital signal are provided. The waveform I / O 14 is also provided with a monitor port for outputting an analog monitor signal. The monitor signal from the monitor port is supplied to the operator monitor 20, and the operator in the operator room is output from the signal or output channel of a certain input channel or output channel without changing the mixing state. The signal supplied to can be listened to. Further, the signal processing unit 15 is configured by using a large number of DSPs (Digital Signal Processors), and performs mixing processing, effect processing, and the like under the control of the CPU 10.

The display 16 is a display composed of a liquid crystal display device or the like that displays an output patch setting screen or the like. The electric fader 17 is a fader that adjusts the output level of signals sent to a bus such as a mixing bus (MIX bus) and the output level of signals output from those buses, and can be adjusted manually and electrically. . The operator 18 is a selector switch for monitoring in the display 16, a delay adjustment volume for adjusting the phase of the monitor signal or CUE signal, channel strips provided with 12 channels, 1 to 12 output channels, 1 to 12 input channels, 13 Assign switch assigned to any of 24 input channels, cursor movement key for moving the cursor displayed on the display 16, increase / decrease key for increasing / decreasing the set value, rotary encoder for selecting the set value, set value This is an operator consisting of an enter key or the like for confirming. Each unit is connected to the bus 19.
The operator monitor 20 can select and monitor any one or a plurality of signals supplied to the output patch, and when a plurality of signals are selected, the mixed signals thereof are selected. Is output to the operator monitor 20. When any channel is cueed, the mixed signal output to the operator monitor 20 is turned off or attenuated, and instead, the signal from the CUE bus is output to the monitor. When the mixer has a CUE dedicated output, a CUE bus signal (CUE signal) is always output there.

An outline of the appearance of the panel in the digital mixer 1 according to the present invention is shown in FIG.
In FIG. 2, channel strips 21 for 12 channels are provided below the display 16. The channel strip 21 includes a selection switch (SEL) 21a for selecting a channel assigned to the channel strip 21, a channel switch 21b for turning on the channel, and an electric fader 17 for controlling the level of the assigned channel. A fader knob 21c and a CUE switch 21d for cueing the assigned channel are provided. This channel strip 21 corresponds to all the input channels and output channels, and the input channels for every 12 channels or the output channels of 12 channels can be controlled by the channel strips 21 for 12 channels, respectively. That is, by pressing the switch 26 of “Master 1” provided in the middle stage on the right side, the 1 to 12 output channels can be controlled by the channel strips 21 for 12 channels. Also, by pressing the “layer 1” switch 27 under the “master 1” switch 26, the 1 to 12 input channels can be controlled by the channel strip 21 for 12 channels, respectively. By pressing the “layer 2” switch 28 below 27, 13 to 24 input channels can be controlled by the channel strips 21 for 12 channels. In this way, the level control and CUE setting of the 12 output channels and the 24 input channels can be controlled by the channel strip 21 for 12 channels.

  Also, a monitor selector switch 22 comprising eight switches is provided on the upper right of the display 16, and a setting screen for setting various values on the display 16 by operating the monitor selector switch 22. And a menu screen can be displayed. Also, below the monitor selector switch 22 is a monitor & CUE delay that turns a delay adjustment volume to absorb the time difference between the sound audible from the main speaker and the monitor signal and CUE signal that the operator is listening to. An adjustment knob 23 is provided. Further, a headphone terminal 25 and a headphone volume knob 24 for adjusting the volume of the analog signal for monitoring output from the headphone terminal 25 are provided below the monitor & CUE delay adjustment knob 23. Furthermore, the “master 1” switch 26, the “layer 1” switch 27, and the “layer 2” switch 28 are provided below the headphone terminal 25, and are displayed on the display 16 below the switch. A cursor movement key 29 for moving the cursor up / down / left / right, an increase / decrease key 30 for increasing / decreasing various set values, a rotary encoder 31 for selecting various set values, an increase / decrease key 30 and a rotary encoder 31. An enter key 32 for confirming the set value is provided.

Next, FIG. 3 shows an equivalent functional block diagram in which mixing processing is performed in the digital mixer 1 having the configuration shown in FIG. 1 according to the present invention.
In FIG. 3, an analog signal input to an analog input unit (A input) 40 having a plurality of analog input ports is converted into a digital signal by an internal AD converter and input to an input patch 43. A digital signal input to a digital input unit (D input) 41 having a plurality of digital input ports is input to an input patch 43. Further, the digital mixer 1 is provided with a built-in effector 42 including, for example, eight effectors, and a signal to which an effect is given by the built-in effector 42 is also input to the input patch 43. Here, each effector of the built-in effector 42 has a plurality of virtual digital output ports as input portions for a plurality of signals to the effector, and a virtual portion as an output portion for a plurality of signals to which the effect is given by the effector. A plurality of digital input ports.

  The input patch 43 selectively patches (connects) any one of the plurality of input ports, which are signal input sources, for each of the input channels of the plurality of input channel sections 44 that are, for example, 24 channels. Each input channel is supplied with a signal from an input port patched by an input patch 43. Each input channel in the input channel unit 44 is provided with a limiter, a compressor, an equalizer, channel delay means, and a level adjustment unit to the MIX bus 45 and CUE bus 46 of the fader. In these input channels, frequency characteristics and The level sent to the MIX bus 45 and the CUE bus 46 is controlled. The 24-channel digital signals output from the input channel unit 44 are selectively output to one or a plurality of 12 mixing buses (MIX buses) 45 MIX 1 to 12 and also output to the CUE bus 46.

  In the MIX bus 45, in each of the 12 buses, one or more digital signals selectively input from any of the 24 input channels are mixed, and a total of 12 MIX outputs are mixed into the MIX output channel. Part (MIX output ch) 47. As a result, 12-channel MIX output mixed in 12 ways can be obtained. In many cases, the output from the MIX bus 45 is supplied as a final output to a speaker or the like. Each output channel in the output channel unit 47 is provided with a compressor, an equalizer, a channel delay means, and a level adjustment unit for the output patch 48 of the fader. In these output channels, the frequency characteristic and the output patch 48 are transmitted. Level is controlled. The CUE bus 46 is selectively input with a 24-channel digital signal output from the input channel unit 44 and a 12-channel digital signal output from the MIX output channel unit 47. Has been. The CUE mode in the CUE function includes two modes of last CUE and mixed CUE, and the two modes will be described below.

  In the last CUE mode, when the CUE switch 21d of the channel strip 21 that controls the channel that is not performing CUE is operated, the CUE of the channel that was performing CUE so far is canceled, and the channel that the CUE switch 21d is operated Only the channel controlled by the strip 21 is cueed. That is, in the last CUE mode, only the CUE of a new channel in which the CUE switch 21d is operated is performed, and only one channel can be CUEed at the same time. Note that the CUE switch 21d is self-illuminating, and only the CUE switch 21d of the channel strip 21 that is being cueed is turned on, and the CUE switches 21d of the other channel strips 21 are turned off. The signal to be cueed can select a point before or after the electric fader 17 in each channel. In this case, the point at which the CUE signal is taken out is selected not for each channel but for all channels. Further, when the CUE switch 21d in which the channel strip 21 that is already CUE is lit is further operated, the CUE of the channel is canceled and the CUE switch 21d is turned off.

  In the mixed CUE mode, a plurality of channels belonging to each group can be simultaneously cueed. The groups are divided into input channel groups and output channel groups. When the CUE switch 21d of the new channel is operated in the mixed CUE mode, if the previous CUE channel belongs to the same group as the channel operated by the new CUE, the previous CUE channel remains, The channel on which the CUE switch 21d is operated is also cueed. As described above, in the mixed CUE mode, it is possible to CUE a plurality of channels at the same time, the CUE point signal in each channel to be cueed is output to the CUE bus 46, and the signals of the plurality of channels to be cueed in the CUE bus 46 are mixed. And output as a CUE signal. In this case, since the group of the input channel is different from the group of the output channel, when the CUE switch 21d that controls the output channel is operated when the input channel is CUE, the CUE of the input channel is canceled and newly The group of the output channel in which the CUE switch 21d is operated can be mixed CUE.

  The last CUE mode and the mixed CUE mode can be switched by a mode switch not shown in FIG. 2, and the CUE signal is output from the CUE bus 46 and supplied to the delay & switching unit 53 regardless of which mode is set. Is done. In addition to the CUE signal, one or more channel signals selected by the monitoring selector 51 are mixed in the delay & switching unit 53 by the monitoring mixer unit 52 and supplied as a monitor signal. The delay & switching unit 53 switches between the supplied CUE signal and the monitor signal and inputs them to the monitoring analog output unit 54. Further, the delay & switching unit 53 delays the CUE signal and the monitor signal so as to absorb the time difference between the sound heard from the main speaker and the monitor signal or CUE signal that the operator is listening at the operator's position. doing. In the monitor analog output section 54, the input digital monitor signal is converted into a monitor analog signal by a built-in DA converter and output from the monitor analog output port. The monitor analog signal output from the monitor analog output port is amplified and output from the monitor speaker and the headphone terminal 25.

  The 12-channel MIX output output from the MIX output channel unit 47 is supplied to the output patch 48. In the output patch 48, any one of the 12 channels of the MIX output channel section 47 that is the signal input source is connected to each output port of the analog output port section (A output) 49 and the digital output port section (D output) 50. Each output port can be selectively patched (connected), and a signal from a channel patched by the output patch 48 is supplied to each output port. In the built-in effector 42 to which the signal patched by the output patch 48 is input, reverb, echo and chorus effects are added to the digital audio signal. The built-in effector 42 is also realized by a DSP constituting the signal processing unit 15. The built-in effector 42 is configured to return an output obtained by adding an effect to the input signal to the input patch 43.

  A digital output signal supplied to an analog output port section (A output) 49 having a plurality of analog output ports is converted into an analog output signal by a built-in DA converter and output from the analog output port. The analog output signal output from the analog output port section (A output) 49 is amplified and emitted from the speaker. A digital audio signal output from a digital output port section (D input) 50 having a plurality of digital output ports is supplied to a multi-track recorder, DAT or the like so that it can be digitally recorded.

Next, FIG. 4 shows a configuration example of the input channel 44a for one channel in the 24-channel input channel section 44. As shown in FIG.
As shown in FIG. 4, in the input channel 44a for one channel, the signal input from the input patch 43 is adjusted in level and frequency characteristics by a processing unit 60 such as a limiter, compressor, equalizer (EQ), etc. In 61, a predetermined time is delayed. The reason why the signal is delayed by the channel delay means 61 is to match the timing with signals in other input channels. By this channel delay means 61, the timing of the L and R channels can be matched in the case of a stereo signal. A signal output from the channel delay means 61 is supplied to a fader (FADER) and to a contact a of a pre / post changeover switch (PP) for CUE. A signal whose level is controlled by a fader (FADER) is supplied to a contact b of a pre / post changeover switch (PP) through an input channel switch (CH_ON). A signal output from the movable contact c of the pre / post changeover switch (PP) is supplied to the CUE bus 46 via the CUE switch (CUE_ON). With this pre / post switch (PP), a signal to be cueed can be switched to a signal before and after the fader (FADER).

  Here, when the pre-post switch (PP) of the input channel 44a is switched to the contact a side and the CUE switch (CUE_ON) is turned on, the signal from the channel delay means 61 is supplied to the CUE bus 46, It becomes possible to CUE the input channel signal before the level is controlled by a fader (FADER). Further, when the pre / post changeover switch (PP) is switched to the contact b side and the CUE switch (CUE_ON) is turned on, a signal from the input channel switch (CH_ON) subsequent to the fader (FADER) is supplied to the CUE bus 46. Thus, the input channel signal after level control by the fader (FADER) can be cueed.

  Further, the signal output from the channel delay means 61 is supplied to the contacts a of 12 pre / post changeover switches (PP1 to PP12) for mixing. The signal whose level is controlled by the fader (FADER) is supplied to the contacts b of the 12 pre / post changeover switches (PP1 to PP12) for mixing through the input channel switch (CH_ON). The signals output from the movable contacts c of the twelve pre-post changeover switches (PP1 to PP12) for mixing are respectively adjusted in the transmission levels by twelve transmission level adjusting means (SND_L1 to SND_L12). It is supplied to each of the 12 MIX buses 45 via the sending switches (SND_ON1 to SND_ON12).

  Here, when the 12 pre / post changeover switches (PP1 to PP12) for mixing are switched to the contact a side and the sending switches (SND_ON1 to SND_ON12) are turned on, signals before the level control by the fader (FADER) Are supplied to the 12 MIX buses 45 and mixed on the MIX buses 45. When the 12 pre / post changeover switches (PP1 to PP12) for mixing are switched to the contact b side and the sending switches (SND_ON1 to SND_ON12) are turned on, the signals before the level control by the fader (FADER) are performed. The signals are supplied to the 12 MIX buses 45 and mixed on the MIX bus 45. The pre / post changeover switches (PP1 to PP12), the transmission level adjusting means (SND_L1 to SND_L12) and the transmission switches (SND_ON1 to SND_ON12) are set for each of the 12 MIX buses 45.

Next, an example of the configuration of the output channel 47a for one channel in the 12-channel output channel section 47 is shown in FIG.
As shown in FIG. 5, in the output channel 47a for one channel, the level and frequency characteristics of a signal output from any of the 12 MIX buses 45 are adjusted by a processing unit 70 such as a compressor or an equalizer (EQ). The A signal output from the processing unit 70 is supplied to a fader (FADER) and is also supplied to a contact a of a pre / post changeover switch (PP) for CUE. A signal whose level is controlled by a fader (FADER) is supplied to the channel delay means 71 and also to the contact b of the pre / post changeover switch (PP) via the output channel switch (CH_ON). The channel delay means 71 is adjusted to adjust the localization state at the position where the audience is listening in the sound output from the speaker supplied with the output from the output port. A signal output from the movable contact c of the pre / post changeover switch (PP) is supplied to the CUE bus 46 via the CUE switch (CUE_ON).

Here, when the pre / post switch (PP) of the output channel 47a is switched to the contact a side and the CUE switch (CUE_ON) is turned on, the signal from the processing unit 70 is supplied to the CUE bus 46, and the fader The output channel signal before being level-controlled by (FADER) can be cueed. Further, when the pre / post changeover switch (PP) is switched to the contact b side and the CUE switch (CUE_ON) is turned on, a signal from the output channel switch (CH_ON), which is subsequent to the fader (FADER), is supplied to the CUE bus 46. Thus, the output channel signal after level control by the fader (FADER) can be cueed.
The output from the channel delay means 71 is output to the output patch 48 and also to the monitor selector 51.
The input channel switch (CH_ON) in the input channel 44a and the output channel switch (CH_ON) in the output channel 47a correspond to the channel switch 21b of the channel strip 21 that controls the channel, and the fader (FADER) knob is Similarly, it corresponds to the fader knob 21c of the electric fader 17, and the CUE switch (CUE_ON) similarly corresponds to the CUE switch 21d.

  Next, an example of the configuration of the delay & switching unit 53 is shown in FIG. As shown in this figure, the delay & switching unit 53 is supplied with the CUE signal from the CUE bus 46 and the monitor signal from the monitoring mixer unit 52. The CUE signal from the CUE bus 46 is supplied to the contact b of the changeover switch SW, and is delayed by a predetermined time in the CUE delay unit 80 and supplied to the contact a of the changeover switch SW. The CUE signal output from the movable contact c of the changeover switch SW is level-controlled by the gain unit 81 and supplied to the mixer (MIX) 84. The CUE delay unit 80 compensates for the delay time of the channel delay means 71 in the output channel unit 47 and the propagation time until the sound emitted from the speaker reaches the operator. That is, the time difference between the sound audible from the main speaker at the operator's position and the monitor signal or CUE signal being listened to by the operator can be absorbed by the CUE delay unit 80 and can be listened to without a sense of incongruity. become able to.

  The monitor signal from the monitor mixer 52 is delayed for a predetermined time by the monitor delay unit 82, is level-controlled by the gain unit 83, and is supplied to the mixer (MIX) 84. In the mixer (MIX) 84, the CUE signal output from the gain unit 81 and the monitor signal output from the gain unit 83 are mixed, and the mixed signal is output from the monitor analog output unit 54. Similar to the CUE delay unit 80, the monitor delay unit 82 compensates for the delay time of the channel delay means 71 in the output channel unit 47 and the propagation time until the sound emitted from the speaker reaches the operator. .

  The changeover switch SW is automatically switched to the contact a side when the group of channels to be cueed is the group of output channels, and the CUE signal is delayed by the CUE delay unit 80 for a predetermined time as described above. As a result, the signal of the output channel can be inspected without feeling uncomfortable with the sound from the speaker. When the channel group to be cueed is the input channel group, the changeover switch SW is automatically switched to the contact b side, and the CUE signal bypasses the CUE delay unit 80. This is because the signal of the input channel is a pre-mixing signal and is only a part of the acoustic signal output from the main speaker. Rather, it is desirable to monitor a real-time CUE signal with no CUE delay when listening to the input channel signal.

  Further, when either the input channel or the output channel CUE switch (CUE_ON) is turned on, the gain of the gain unit 83 is automatically reduced, and the monitor signal from the monitor mixer unit 52 is attenuated. At the same time, the gain of the gain unit 81 is increased and the CUE signal from the CUE bus 46 is increased. The gain setting by the gain units 81 and 83 can be arbitrarily set, but when the CUE signal is listened to, the monitor signal can be heard a little. When all of the CUE switches (CUE_ON) are turned off, the gain of the gain unit 81 is automatically reduced to the maximum so that the CUE signal from the CUE bus 46 is hardly output, and the gain The gain of the unit 83 is increased and the monitor signal from the monitor mixer unit 52 is increased. In this way, when listening to the monitor signal, the CUE signal cannot be heard.

Next, FIG. 7 shows a flowchart of CUE (i) SW operation event processing executed when either the input channel or the output channel CUE switch 21d is operated. The program for executing the operation event process of the CUE (i) SW is one program among the mixing control programs stored in the flash memory 11.
When either the input channel or the output channel CUE switch 21d is operated, the CUE (i) SW operation event processing is activated, and in step S10, CH (LN , I) is replaced with channel c. In this case, CH (LN, i) is indicated by an identification number LN indicating one of master 1, layer 1 and layer 2 controlled by the channel strip 21, and i-th of the channel strips 21 for 12 channels. This corresponds to either an input channel or an output channel controlled by the i-th channel strip 21. Channel c is a channel number that can indicate any one of the input channel and the output channel. Here, when the channel controlled by the channel strip 21 is layer 1 (1 to 12 input channels), the channel c is any one of channels 1 to 12, and the channel controlled by the channel strip 21 is layer 2 (13). Channel c is any one of channels 13 to 24, and when the channel controlled by the channel strip 21 is master 1 (1 to 12 output channels), channel c is a channel. Any of 25-36. In this way, all the input channels and output channels are specified by the channels 1 to 36.

  Next, in step S11, it is determined whether the CUE switch (CUE_ON) in channel c is off and CON (c) = 0. CON (c) indicates the on / off state of CUE of channel c. When CON (c) is “0”, CUE is off, and when CON (c) is “1”. CUE is turned on. Here, when the CUE switch (CUE_ON) in the channel c is off (CON (c) = 0), it is determined as YES and the process branches to step S17. In this case, since the CUE switch (CUE_ON) that has been turned off is operated and turned on, the following on-event processing is performed. That is, the CS value indicating the group in the CUE is confirmed in step S17. In this case, when CS is “0”, the CUE of any group is turned off, and when CS is “1”, the group of the input channel is CUE, and CS is “2”. In this case, the group of the output channel is cueed. Therefore, as a result of checking the value of CS and determining whether or not the group to which the channel c belongs is in the CUE, if the group to which the channel c to which the CUE switch (CUE_ON) is operated is determined to be in the CUE, step S22 Then, it is determined whether or not the value of MC is “0”. MC is a value indicating the state of the CUE mode. When MC is “0”, it indicates that the mode is the single CUE mode, that is, the last CUE mode described above. When MC is “1”, MIXCUE is indicated. The mode, that is, the mixed CUE mode described above is shown.

  If the MC value is “0” in this step S22 and it is determined that the mode is the single CUE mode, the process branches to step S24, and CON (c) is set to “1” and the CUE switch (CUE_ON) is operated. The CUE of all other channels is canceled by setting the CUE of the channel c to ON and setting the CON of all other channels to “0”. Then, the operation event process of CUE (i) SW ends. If it is determined in step S22 that the MC value is “1” and it is not the single CUE mode, the process proceeds to step S23 where CON (c) is set to “1” and the CUE switch (CUE_ON) is set. The CUE of the operated channel c is turned ON. In this case, the channel c is cueed simultaneously with the channel in which another CUE is turned on. Then, the operation event process of CUE (i) SW ends.

  If it is determined in step S17 that the value of CS is confirmed and the group to which the channel c to which the CUE switch (CUE_ON) is operated belongs is not CUE, the process branches to step S18. In this case, since the CUE group is changed, the CON of all channels is set to “0” in step S18, and the CUE of all channels is turned off. Next, in step S19, it is determined whether to bypass the CUE delay unit 80 according to the group to which the channel c to which the CUE switch (CUE_ON) is operated belongs. In this case, when it is determined that the group is an input channel group, the changeover switch SW is switched to the contact point b side to bypass the CUE delay unit 80 to obtain an undelayed CUE signal. If it is determined that the group is an output channel group, the changeover switch SW is switched to the contact a side, and the CUE delay unit 80 delays the CUE signal. As a result, the time difference between the sound heard from the main speaker at the operator's position and the CUE signal being listened to by the operator can be eliminated.

  When the process of step S19 is completed, the gain of the gain unit 83 is automatically reduced so that the CUE signal becomes the main analog output for monitoring in step S20, the monitor signal is attenuated, and the gain of the gain unit 81 is increased. The CUE signal is increased. Next, a number indicating that the group to which the channel c to which the CUE switch (CUE_ON) is operated in step S21 belongs is CUE (“1” if the group is an input channel, and the group is an output channel). In this case, CS is rewritten to “2”), and the process proceeds to step S22. As described above, when the CUE mode is set to the single mode (last CUE mode), only the channel c in which the CUE switch (CUE_ON) is operated is CUE, and the same group may be used. The CUEs of all channels are processed so as to be canceled. Further, when the CUE mode is set to the MIX CUE mode (mixed CUE mode), the processing is performed so that the channel c on which the CUE switch (CUE_ON) is operated is added to the CUE channel of the same group. Thereby, the operation event process of the CUE (i) SW ends.

  Furthermore, when the CUE switch (CUE_ON) in channel c is turned on in step S11 (CON (c) = 1), it is determined as NO and the process proceeds to step S12. In this case, since the CUE switch (CUE_ON) that has been turned on is operated and turned off, the following off event processing is performed. That is, in step S12, CON (c) is set to “0”, and the CUE of channel c for which the CUE switch (CUE_ON) is operated is turned off. Next, in step S13, the value of MC is set to “0”, and it is determined whether or not the mode is a single CUE (last CUE) mode. Here, when MC = 0 and it is determined that the single CUE (last CUE) mode is selected, the CUEs of all the channels are turned off. Therefore, the process branches to step S15 and the monitor signal is output as an analog output for monitoring. Thus, the gain of the gain unit 81 is automatically reduced to the maximum so that the CUE signal is hardly output, and the gain of the gain unit 83 is increased to increase the monitor signal. In step S16, “0” is set in CS indicating the CUE state, and the CUEs of all channels are turned off. When the process of step S16 ends, the operation event process of the CUE (i) SW ends.

If it is determined in step S13 that MC = 0 and not the single CUE (last CUE) mode, the MIX CUE (mixed CUE) mode is set, and the process proceeds to step S14. It is determined whether or not the channel CON is “0” and all channel CUEs are turned off. If it is determined that the CON of all channels is “0” and the CUE of all channels is turned off, the process branches to step S15 and the monitor signal becomes an analog output for monitoring as described above. As described above, the gain control of the gain unit 81 and the gain unit 83 is performed, CS is set to “0”, and the CUE of all channels is turned off, and the operation event processing of the CUE (i) SW ends. .
If it is determined in step S14 that the CON of all channels is not set to “0” and the CUE of all channels is not turned off, the channel that is CUE in the MIXCUE (mixed CUE) mode remains. Therefore, the operation event process of the CUE (i) SW is finished as it is.

  The mixing apparatus according to the present invention described above includes an input SOLO function for turning on and outputting only a signal of an input channel designated by SOLO among specific input channel signals for each bus, and a plurality of output channels. Some mixing apparatuses have an output SOLO function that turns on and outputs only the signal of the output channel designated by SOLO. Even when the SOLO function is activated and the input channel is designated as SOLO or the output channel is designated as SOLO, the monitor signal for listening to this is sent to the monitor analog output unit 54 via the monitor delay unit 82. It is output and delayed by the monitor delay unit 82 regardless of whether it is an input channel or an output channel.

  In the above description, for simplification of description, the input channel, the MIX bus 45, the output channel, and the CUE bus 46 have been described in a monaural configuration, but each can be configured in a stereo configuration. In that case, the monitoring selector 51, the monitoring mixer unit 52, and the delay & switching unit 53 are also configured in stereo so that a stereo signal can be monitored and CUE. Further, further configurations such as 5.1ch and 7.1ch can be realized in the same manner. Thus, the mixing apparatus of the present invention can have a stereo configuration or a multi-channel configuration.

It is a block diagram which shows the structure of the digital mixer which is an Example of the mixing apparatus of this invention. It is a figure which shows the outline of the external appearance of the panel in the digital mixer which is an Example of the mixing apparatus of this invention. It is an equivalent functional block diagram in which a mixing process is performed in the digital mixer which is an Example of the mixing apparatus of this invention. It is a figure which shows the structural example for 1 channel of the input channel part in the digital mixer which is an Example of the mixing apparatus of this invention. It is a figure which shows the structural example for 1 channel of the output channel part in the digital mixer which is an Example of the mixing apparatus of this invention. It is a figure which shows the structural example of the delay & switching part in the digital mixer which is an Example of the mixing apparatus of this invention. It is a flowchart of the operation event process of CUE (i) SW performed in the digital mixer which is an Example of the mixing apparatus of this invention.

Explanation of symbols

1 Digital mixer, 10 CPU, 11 Flash memory, 12 RAM, 13 Other I / O, 14 Waveform I / O, 15 Signal processing unit, 16 Display, 17 Electric fader, 18 Operator, 19 Bus, 20 For operator Monitor, 21 channel strip, 21a selection switch, 21b channel switch, 21c fader knob, 21d CUE switch, 22 monitor selector switch, 23 monitor & CUE delay adjustment knob, 24 headphone volume knob, 25 headphone jack, 26 switch, 27 switch, 28 switch, 29 cursor movement key, 30 increase / decrease key, 31 rotary encoder, 32 enter key, 42 built-in effector, 43 input patch, 44 input channel section, 44a input channel, 45 IX bus, 46 CUE bus, 47 output channel section, 47a output channel, 48 output patch, 51 monitor selector, 52 monitor mixer section, 53 delay & switching section, 54 monitor analog output section, 60 processing section, 61 channel Delay means, 70 processing section, 71 channel delay means, 80 CUE delay section, 81 gain section, 82 monitor delay section, 83 gain section, 84 mixer

Claims (2)

In a mixing device comprising a mixing means for mixing signals from a plurality of input channels, and outputting a signal mixed by the mixing means to an output channel,
Channel delay means provided in the output channel and for adjusting the phase relationship with signals of other output channels;
CUE means for listening to the signal of the input channel or the signal before the channel delay means in the output channel without changing the mixing state of the mixing means;
Monitoring means for monitoring a signal output from the output channel;
CUE delay means for delaying a CUE signal to be inspected by the CUE means so as to absorb the propagation time until the sound of the emitted output channel reaches a predetermined position, and the sound of the emitted output channel A monitor and CUE delay means comprising a monitor delay means for delaying a monitor signal monitored by the monitor means so as to absorb a propagation time until reaching a predetermined position;
The mixing apparatus according to claim 1, wherein when the signal of the input channel is selected by the CUE means, the CUE delay means is bypassed and the CUE signal in the input channel to be inspected is not delayed. In the CUE means, the last CUE mode in which only the signal of one input channel of the plurality of input channels or the signal of one output channel of the plurality of output channels is inspected, and two or more of the plurality of input channels 2. The mixing apparatus according to claim 1, further comprising: a mixed CUE mode capable of listening to an input channel signal or two or more output channel signals of the plurality of output channels.

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