JP3671947B2 - Mixing equipment - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a mixing apparatus that mixes input audio signals and collects them into several mixing groups and sends them to a power amplifier, various recording devices, etc., or sends them to an effector or a player who is playing.
[0002]
[Prior art]
Conventionally, the level and frequency characteristics of audio 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 in several mixing groups. There is known a mixing device for sending out to a player who is performing. 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 an input channel of a plurality of microphone / line inputs as an input signal sequence, a bus that mixes signals output from the input channel, and an output channel that is an output sequence that outputs the mixed signal. 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 a signal input from the mixing bus.
[0003]
[Problems to be solved by the invention]
The mixing buses included in the mixing apparatus include an AUX bus capable of individual level control for each bus and a GROUP bus which cannot be individually level controlled for each bus. The GROUP bus is used as a bus for mixing audio signals of input channels to be grouped among a plurality of input channels as a stage before final mixing in the stereo bus. The AUX bus is used as a bus for mixing an audio signal to be sent to an effector to which an effect is applied and an audio signal to be returned to the player performing the performance. In this case, since the signal level sent to the effector is independent for each input channel, the depth of the effect applied to each input channel can be controlled. In addition, the volume level of which input channel is required and how much it is necessary for each player are often different, but it can be returned to each player at a volume level suitable for each player.
[0004]
In a normal mixing apparatus, the number of GROUP buses and AUX buses is fixed. There is also a monitor-type mixing device that has only an AUX bus and no GROUP bus. However, the number of buses required may vary depending on the situation in use. The conventional mixing apparatus has a problem that it can be used only in a situation suitable for the configuration of the bus and cannot flexibly cope with different use situations.
For example, when sending back a mixed audio signal to each actor in a play or the like, the number of AUX buses corresponding to the number of actors is required. If an effector capable of applying effects to a plurality of input channels is prepared, the number of AUX buses corresponding to the number of effectors is required. Furthermore, in a large concert, there are two units, a mixing device that mixes audio signals for the audience seats and a mixing device that mixes audio signals for the players. A large number of GROUP buses used as a pre-mixing stage are required, and a mixing device for a player requires a large number of AUX buses for mixing audio signals to be returned to the player.
[0005]
If the mixing device has only an AUX bus and does not have a GROUP bus, the AUX bus can be used instead of the GROUP bus. In this case, the level knob for each AUX bus is set to a predetermined value (for example, zero decibel). It has to be set and fixed, and there is a problem that adjustment is complicated and it is difficult to fix. Even in such a case, since it cannot be linked to the pan of the stereo bus, there arises a problem that it becomes difficult to use it as a stereo group GROUP bus.
[0006]
Therefore, an object of the present invention is to provide a mixing apparatus that can be used by switching the same bus to a different bus.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, when the mixing apparatus of the present invention is set to the first mode, the audio signal is transmitted to the mixing bus without performing level control, and is set to the second mode. In this case, an audio signal subjected to level control is transmitted to the mixing bus. As a result, the mixing bus can be used by switching to the GROUP bus or the AUX bus. In this case, the mixing bus may be set as a stereo pair. In addition, since the output channel section displays which mode is set for the mixing bus, the mode set for the mixing bus can be easily recognized. Furthermore, by setting the mixing level of the mixing bus when set to the first mode as a standard level and the mixing level of the mixing bus when set to the second mode as a mixing level exceeding the standard level, Whichever mode is set, the mixing level suitable for the set mixing bus mode is automatically set.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a configuration of a mixing apparatus according to an embodiment of the present invention.
A mixing apparatus 1 according to the present invention shown in FIG. 1 is an analog mixing apparatus, and includes a plurality of input channel sections 10, 11,..., An AUX stereo bus AUX ST, a stereo bus ST, a GROUP / AUX bus ( G / A bus) and output channel sections of the respective buses. The input channel section 10 is a monaural input channel section, and its detailed configuration is shown in FIG. The input channel section 11 is a stereo input channel section, and its detailed configuration is shown in FIG. For example, there are 8 AUX stereo buses AUX ST, 2 stereo buses ST, and 6 GROUP / AUX buses (G / A buses).
[0009]
The input channel unit 10 to which the monaural audio signal shown in FIG. 2 is input will be described. In FIG. 2, the input level of the analog audio signal input from IN is controlled by adjusting the gain in the input level control unit G1. Next, the frequency characteristic of the audio signal is adjusted in the equalizer EQ1 and supplied to the channel fader FADER1 via the channel switch (CH_ON) SW1. By moving the operator position of the channel fader FADER1 up and down, it is possible to control the transmission level to the stereo bus ST and the G / A bus in the GROUP bus mode described later in the input channel section 10. An auxiliary bus SB1 and an auxiliary bus SB2 are connected to an input side and an output side of the channel fader FADER1, and pre (pre) and post (rear) outputs of the channel fader FADER1 are output, respectively.
[0010]
Here, output to the AUX stereo bus AUX ST will be described. Either the pre-output from the auxiliary bus SB1 or the post-output from the auxiliary bus SB2 is selected by the switch SW2. That is, one of the pre / post outputs of the channel fader FADER1 is selected by the switch SW2 and supplied to the level control unit LVL1. The output level of one of the audio signals selected by the switch SW2 to the AUX stereo bus AUX ST is controlled in the level control unit LVL1. Next, the output of the level control unit LVL1 is supplied to the localization control unit PAN1, and localization control is performed at an arbitrary localization position, and the stereo L and R outputs subjected to localization control are passed through the AUX bus assignment switch (AUX_ON) SW3. Are respectively output to the two AUX stereo buses AUX ST that are paired. The AUX bus assignment switch (AUX_ON) SW3 is configured so that the two circuits operate in conjunction with each other. The AUX stereo bus AUX ST performs mixing for returning to the player at the time of performance or sending to the effector. The level can be controlled so that the player can perform mixing at a desired level by adjusting the level controller LVL1. In addition, since the depth of the effect can be changed according to the transmission level to the effector, the depth of the effect can be adjusted by adjusting the level control unit LVL1.
[0011]
Next, output to the stereo bus ST will be described. The output of the audio signal whose level is controlled by the channel fader FADER1 is supplied to the localization control unit PAN2 and is localized at an arbitrary localization position, and the stereo L and R outputs subjected to localization control are stereo bus assignment switches (ST_ON) The signals are output to the two stereo buses ST that are paired via SW4. The stereo bus assignment switch (ST_ON) SW4 is configured so that the two circuits operate in conjunction with each other. This stereo bus ST is the main mixing bus.
[0012]
Next, the characteristic output to the G / A bus in the mixing apparatus 1 of the present invention will be described. The mode switch (MODE) SW7 is a two-circuit / three-contact electronic switch for switching the G / A bus to the GROUP bus mode or the AUX bus mode. The mode switch (MODE) SW7 is not provided on the panel of the mixing apparatus 1. Instead, the mode can be switched by selecting the display on the display by operating an operator that controls the display. In this case, the mode switch (MODE) is provided in each input channel section, and the mode switch (MODE) for all input channels according to the mode set for each pair of G / A buses. Can be switched simultaneously. In the mode switch (MODE) SW7, when the movable contacts d and h are switched to the fixed contacts a and e, the stereo GROUP bus mode is set, and when the movable contacts d and h are switched to the fixed contacts b and f. When the monaural GROUP bus mode is selected and the movable contacts d and h are switched to the fixed contacts c and g, the AUX bus mode is selected.
[0013]
That is, a stereo L (R) output controlled by the localization control unit PAN2 is supplied to the fixed contact a, and a stereo R (L) output controlled by the localization control unit PAN2 is supplied to the fixed contact e. Has been. For this reason, when the movable contacts d and h are switched to the fixed contacts a and e, the stereo L and R outputs controlled by the localization control unit PAN2 are respectively output from the mode switch (MODE) SW7, and the G / A The signals are output to the two G / A buses that are paired via the bus allocation switches (G / A_ON) SW8 and SW9.
Further, the post output of the channel fader FADER1 is supplied to the fixed contact b and the fixed contact f. For this reason, when the movable contacts d and h are switched to the fixed contacts b and f, the monaural output level-controlled by the channel fader FADER1 is output from the mode switch (MODE) SW7, and the G / A bus allocation switch (G / A_ON) The signals are output to the two G / A buses paired via SW8 and SW9.
[0014]
Further, the output selected by the switch SW5 is supplied to the fixed contact c under the level control by the level control unit LVL2, and the output selected by the switch SW6 is supplied to the fixed contact g by the level control by the level control unit LVL3. Has been. The switches SW5 and SW6 select either pre / post output of the channel fader FADER1. Thus, the configuration of the switch SW5 and the level control unit LVL2, and the configuration of the switch SW6 and the level control unit LVL3 are the same as the configuration of the switch SW2 and the level control unit LVL1 for outputting to the AUX stereo bus AUX ST. ing. Therefore, when the movable contacts d and h are switched to the fixed contacts c and g, the AUX bus mode is set, and the level-controlled outputs in the level control unit LVL2 and the level control unit LVL3 are output from the mode switch (MODE) SW7, respectively. The G / A bus assignment switches (G / A_ON) SW8 and SW9 are used for output to the two G / A buses that are paired.
[0015]
Next, the input channel unit 11 to which a stereo audio signal shown in FIG. 3 is input will be described. The input channel unit 10 of monaural input is configured as a stereo input, and will be described briefly.
In FIG. 3, the input levels of analog L and R stereo audio signals input from INL and INR are controlled by adjusting gains in input level control units G10 and G11. Next, in the equalizer EQ10 having two systems, the frequency characteristics of the stereo L and R signals are adjusted and supplied to the two channel faders FADER10 whose levels are controlled in conjunction with each other via the channel switch (CH_ON) SW10. The level of the R signal is controlled in conjunction.
[0016]
In order to select the pre / post output in the channel fader FADER10, either the pre-output from the auxiliary buses SB10 and SB11 or the post output from the auxiliary buses SB14 and SB15 is selected by the switches SW11 and SW12. The level of the stereo L and R signals selected by the switches SW11 and SW12 is controlled by the level control units LVL10 and LVL11, thereby controlling the output level of the stereo L and R signals to the AUX stereo bus AUX ST. The Next, two AUX stereo buses that are controlled to be positioned at an arbitrary position in the balance control unit BAL10 in which the two systems are operatively operated and are paired via the two AUX bus assignment switches (AUX_ON) SW13. Output to AUX ST respectively.
[0017]
Next, output to the stereo bus ST will be described. The stereo L and R outputs whose transmission levels are controlled by the channel fader FADER10 are localized at arbitrary positions in the balance control unit BAL11 in which the two systems are operatively operated, and the stereo bus assignment switch (ST_ON) of two circuits ) The signals are output to the two stereo buses ST that are paired via SW14.
[0018]
Next, the characteristic output to the G / A bus in the mixing apparatus 1 of the present invention will be described. The mode switch (MODE) SW 17 is a two-circuit, three-contact electronic switch for switching the G / A bus to the GROUP bus mode or the AUX bus mode according to the mode set for each pair of G / A buses. Has been. In the mode switch (MODE) SW17, when the movable contacts d and h are switched to the fixed contacts a and e, the stereo controlled to an arbitrary localization position in the balance control unit BAL11 in which the two systems are operatively operated. GROUP bus mode. When the movable contacts d and h are switched to the fixed contacts b and f, a stereo GROUP bus mode without localization control, which is an output from the two channel faders FADER10, is set.
[0019]
Further, when the movable contacts d and h are switched to the fixed contacts c and g, either the output of the auxiliary bus SB12 or the output of the auxiliary bus SB13 is selected by the switches SW15 and SW16, and the level of each selected output is The level is controlled by the level controllers LVL12 and LVL13 and output from the mode switch (MODE) SW17. The output from the mode switch (MODE) SW17 is output to the two G / A buses paired via the G / A bus assignment switches (G / A_ON) SW18 and SW19, respectively. In this case, the stereo L and R outputs of the equalizer EQ10 are mixed by the two resistors R to the auxiliary bus SB12 and output as a monaural signal, and the stereo L and R outputs from the channel fader FADER10 are 2 to the auxiliary bus SB13. Since the signal is mixed by the resistor R and output as a monaural signal, the monaural AUX bus mode is set.
[0020]
Returning to FIG. 1, the output from the monaural input channel section 10 and the output from the stereo input channel section 11 output to the AUX stereo bus AUX ST are mixed and output in each paired bus. Specifically, the output to one of the paired buses is summed by the summing amplifier AMP20, the output level is controlled by the output fader FADER20, and output via the AUX bus output switch (AUXO_ON) SW20. Yes. The configuration of the other bus output in the pair is the same. The bus output from the AUX stereo bus AUX ST is returned to the playing player as described above or supplied to the effector.
[0021]
The output from the monaural input channel unit 10 and the output from the stereo input channel unit 11 output to the stereo bus ST are mixed and output in each paired bus. Specifically, the output to one of the paired buses is summed by the summing amplifier AMP21, and the output level is controlled by the output fader FADER21, and the two buses are connected via the stereo bus output switch (STO_ON) SW21. Is output. Further, the output of the stereo bus ST to the other bus is summed by the summing amplifier AMP22, the output level is controlled by the output fader FADER22, and output via the two-circuit stereo bus output switch (STO_ON) SW21. .
[0022]
Further, the output from the monaural input channel unit 10 and the output from the stereo input channel unit 11 output to the G / A bus are mixed and output in one bus paired. Specifically, the output to one of the paired buses is summed by the summing amplifier AMP23, and the output level is controlled by the output fader FADER23, and the G / A bus output switch (G / AO_ON) SW22 is set. Is output via. Further, the output of the output fader FADER23 is supplied to the localization control unit PAN20 and is localized at an arbitrary localization position, and the stereo L and R signals from the localization control unit PAN20 are passed through the stereo bus supply switches (TO_ST) SW23 and SW24. Are supplied to a pair of stereo buses ST. Here, the on / off state of the G / A bus output switch (G / A_ON) SW22 and the stereo bus supply switches (TO_ST) SW23 and SW24 has nothing to do with the G / A bus mode.
[0023]
For example, when mixing a signal supplied to an effector in a certain G / A bus, the pair including the G / A bus is set to the AUX mode, and the G / A bus output switch (G / A_ON) SW22 is set. The stereo bus supply switch (TO_ST) SW23 and SW24 may be turned off. Further, when a signal from an arbitrary input channel portion is grouped by monaural mixing in a certain G / A bus and the mixed monaural signal is to be supplied to the stereo bus ST, a pair including the G / A path is included. Is set to monaural GROUP mode, and the G / A bus output switch (G / A_ON) SW22 is turned off. Then, the stereo bus supply switches (TO_ST) SW23 and SW24 are turned on, and the localization control unit PAN20 controls the localization appropriately. Further, when a signal from an arbitrary pair of input channels in a certain G / A bus is grouped by stereo mixing, and the mixed stereo signal is to be supplied to the stereo bus ST, the G / A The pair including the bus is set to the stereo GROUP mode, the G / A bus output switch (G / A_ON) SW22 is turned off, the stereo bus supply switches (TO_ST) SW23 and SW24 are turned on, and the paired G The localization control unit PAN20 corresponding to the odd-numbered G / A bus of the / A bus may be set to stereo L, and the even-numbered localization control unit PAN20 may be set to stereo R.
[0024]
By the way, in the mixing apparatus 1 of the present invention, when the G / A bus is switched to the GROUP bus mode or the AUX bus mode, the mixing gain is switched to a mode suitable for the switched mode. Here, in the case of the AUX bus, the transmission level can be controlled, and the level control is generally performed in the vicinity of 0 dB, which is a reference level. Therefore, when the AUX bus mode is set, the mixing gain is set to +6 dB so that the level control can be performed around the reference level of 0 dB. In the case of the GROUP bus, the transmission level is not controlled. Therefore, when the GROUP bus mode is set, the mixing gain is fixed to 0 dB which is the reference level. In this case, it is conceivable to set the mixing gain to +6 dB and then −6 dB. However, in this case, since the S / N in the mixing deteriorates, the mixing gain is fixed to 0 dB, for example. Specifically, the gain of the summing amplifier AMP23 is changed by switching the resistance value input from each input channel section 10, 11 to the G / A bus in conjunction with the switching of the mode switches (MODE) SW7, SW17. Thus, the mixing gain of the audio signal sent from the input channel sections 10 and 11 to the G / A bus in the G / A bus mixing is changed.
[0025]
Here, FIG. 8 shows a control configuration of the electric faders and various switches in the mixing apparatus 1 according to the present invention.
The electric fader 62 shown in FIG. 8 is a channel fader FADER1 in the input channel unit 10 and two channel faders FADER10 in the input channel unit 11. Here, when the electric fader 62 is operated, the microcomputer 61 detects the operation position, and the microcomputer 61 controls the corresponding VCA (Voltage controlled Amplifire) constituting the attenuation control means 63 according to the operation position. As a result, the level of the input channel sections 10, 11,... Is controlled according to the operation of the electric fader 62. The microcomputer 61 includes a processing device such as a CPU (Central Processing Unit) and a DSP (Digital Signal Processor), and a memory in which operation software executed by the processing device, various data, and the like are stored.
[0026]
The tact switch 64 is various switches in the input channel sections 10 and 11. When the tact switch 64 is operated, the microcomputer 61 detects the operation and operates the switch that constitutes the switching control means 65. The on / off state of the corresponding electronic switch is reversed. Thus, by using the attenuation control means 63 as the VCA and the switching control means 65 as the electronic switch, it is possible to recall the scene from the scene memory and to connect the analog signal wiring in the mixing device to the shortest distance. Will be able to do it. In the scene memory, scene data indicating the setting states of all faders and all switches controlled by the CPU of the mixing apparatus 1 can be stored and recalled for a plurality of scenes, and a store operation is performed by specifying a scene number. As a result, all faders and all switch setting states (current scene) controlled by the CPU of the mixing apparatus 1 are stored in the scene memory as scene data of the designated scene number. Then, by designating the scene number and performing a recall operation, the scene data of the designated scene number is read out, and the setting state corresponding to the scene data is reproduced in the mixing device 1.
[0027]
Further, the operator 67 switches the mode switches of all the input channel sections such as the mode switch (MODE) SW7 in the input channel section 10 and the mode switch (MODE) SW17 in the input channel section 11 at the same time. Is an operator that switches between each pair of buses, and includes an up / down switch and an enter key. Here, when the up / down switch of the operation element 67 is operated, the operation is detected by the microcomputer 61 and the mode setting state displayed on the display unit 66 according to the operation is set for each G / A bus paired. Changed and displayed sequentially. When the G / A bus to be set and its mode state are displayed, the microcomputer 61 detects the operation by operating the enter key, and the mode state of the displayed G / A bus is determined. The displayed mode will be set.
[0028]
Next, FIG. 4 shows an external configuration of the input channel module 20 provided in the mixing apparatus 1 according to the present invention.
The input channel module 20 shown in FIG. 4 is an input channel module of a monaural input channel unit 10 or a stereo input channel unit 11, and a plurality of input channel modules 20 can be mounted on the mixing apparatus 1 as necessary. Hereinafter, explanation will be given corresponding to the input channel section 10 and the input channel section 11. The input gain knob provided in the uppermost stage is a knob for adjusting the gain of the input level control unit G1 or the input level control units G10 and G11. In the input channel unit 11, the input gain of the stereo input is adjusted. It is a two-axis double knob. The equalizer control knobs at the second stage are a plurality of knobs that adjust the frequency characteristics in the equalizer EQ1 or the equalizer EQ10.
[0029]
The AUX PAN & LVL knob on the third stage is a knob that controls the level of the level controller LVL1 or level controllers LVL10 and LVL11. The outer knob is the localization controller PAN1 or balance. It is a knob for performing localization control of the control unit BAL10. The switch labeled “ON” provided immediately below the knob is the AUX bus allocation switch (AUX_ON) SW3 or the AUX bus allocation switch (AUX_ON) SW13. The switch labeled “P” is The switch SW2 or the switch SW12 selects the pre / post output. In the input channel module 20 shown in FIG. 4, four sets (8) of AUX stereo buses AUX ST that are paired, one set (two), and six of stereo buses ST that are paired The G / A bus is provided in the mixing apparatus 1. For this reason, four sets of knobs and switches related to the third-stage AUX stereo bus AUX ST are provided.
[0030]
The fourth-stage knob and switch set are related to the G / A bus. Since there are six G / A buses, there are six sets of fourth-stage knobs and switches. . The knob in each set is a knob for level control of any one of the level controllers LVL2 and LVL3 and the level controllers LVL12 and LVL13. The switch labeled “ON” provided immediately below the knob is one of G / A bus assignment switches (G / A_ON) SW8 and SW9 and G / A bus assignment switches (AUX_ON) SW18 and SW19. The switch indicated by “P” is any one of the switches SW5 and SW6 and the switches SW15 and SW16 for selecting the pre / post output.
[0031]
The set of knobs and switches in the second row from the bottom is related to the stereo bus ST and is set as one set of stereo bus STs. Therefore, the set of knobs and switches is set as one set. The PAN knob is a knob for performing localization control of the localization control unit PAN2 or the balance control unit BAL11, and the ST switch is a stereo bus allocation switch (ST_ON) SW4 or a stereo bus allocation switch (ST_ON) SW14. The switch labeled “ON” at the bottom is the channel switch (CH_ON) SW1 or the channel switch (CH_ON) SW10, and the fader is the channel fader FADER1 or the channel fader FADER10.
[0032]
Next, FIG. 5 shows an external configuration of the AUX stereo bus output module 30 provided in the mixing apparatus 1 according to the present invention.
The AUX stereo bus output module 30 shown in FIG. 5 is an AUX stereo bus output module in a pair of AUX stereo buses AUX ST, and two switches labeled “ON” are AUX buses. The AUX bus output switch (AUXO_ON) includes an output switch (AUXO_ON) SW20, and the fader is a set of output faders including an output fader FADER20.
[0033]
Next, FIG. 6 shows an external configuration of the GROUP / AUX bus output module 40 provided in the mixing apparatus 1 according to the present invention.
The GROUP / AUX bus output module 40 shown in FIG. 6 is a GROUP / AUX bus output module in a pair of G / A buses. The two switches labeled “ON” in the lower row are a pair of G / A bus output switches (G / AO_ON) including a G / A bus output switch (G / AO_ON) SW22, and the faders are output faders FADER23. A pair of output faders. Further, the upper PAN knob is a pair of knobs for performing localization control of the localization control unit PAN20, and the ST switches are stereo bus supply switches (TO_ST) SW23 and SW24. Further, the mode indicator 41 is an indicator whose display state is switched in conjunction with the switching of the mode switches (MODE) SW7 and SW17, and the mode of one set of G / A buses in the pair is a stereo GROUP bus. When the mode is set, the “GR ST” LED is lit. When the monaural GROUP bus mode is set, the “GR M × 2” LED is lit. When the AUX bus mode is set, the “AUX” mode is set. LED "is turned on.
[0034]
Next, FIG. 7 shows an external configuration of the stereo bus output module 50 provided in the mixing apparatus 1 according to the present invention.
The stereo bus output module 50 shown in FIG. 7 is a stereo bus output module in a pair of stereo buses ST, and a switch labeled “ON” is a stereo bus output switch (two circuits) STO_ON) SW21, and a pair of faders are an output fader FADER21 and an output fader FADER22 that control the output level of a set of stereo buses ST.
[0035]
In the above description, the analog mixing device has been described. However, the G / A bus that can be switched between the GROUP bus and the AUX bus in the mixing device according to the present invention can also be applied to the digital mixing device.
In the mixing apparatus 1 of the present invention, the bus mode of the G / A bus is switched by an electronic switch (analog switch IC, relay, etc.) controlled by CPU control, but the CPU is switched according to a predetermined switch operation. The electronic switch may be switched directly without going through. Or you may make it switch mechanically with a mechanical switch instead of an electronic switch.
[0036]
【The invention's effect】
Since the present invention is configured as described above, when the first mode is set, the audio signal is transmitted to the mixing bus without performing level control, and when the second mode is set. In this case, a level-controlled audio signal is transmitted to the mixing bus. As a result, the mixing bus can be used by switching to the GROUP bus or the AUX bus. In this case, the mixing bus may be set as a stereo pair. In addition, since the output channel section displays which mode is set for the mixing bus, the mode set for the mixing bus can be easily recognized. Furthermore, by setting the mixing level of the mixing bus when set to the first mode as a standard level and the mixing level of the mixing bus when set to the second mode as a mixing level exceeding the standard level, Whichever mode is set, the mixing level suitable for the set mixing bus mode is automatically set.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a mixing apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram showing a detailed configuration of a monaural input channel unit according to the embodiment of the mixing apparatus of the present invention;
FIG. 3 is a diagram showing a detailed configuration of a stereo input channel section according to the embodiment of the mixing apparatus of the present invention;
FIG. 4 is a diagram showing an external configuration of an input channel module according to the embodiment of the mixing apparatus of the present invention.
FIG. 5 is a diagram showing an external configuration of an AUX stereo bus output module according to the embodiment of the mixing apparatus of the present invention.
FIG. 6 is a diagram showing an external configuration of a GROUP / AUX bus output module according to the embodiment of the mixing apparatus of the present invention.
FIG. 7 is a diagram showing an external configuration of a stereo bus output module according to the embodiment of the mixing apparatus of the present invention.
FIG. 8 is a diagram illustrating a control configuration of an electric fader and various switches according to the embodiment of the mixing apparatus of the present invention.
[Explanation of symbols]
1 mixing device, 10 input channel section, 11 input channel section, 20 input channel module, 30 stereo bus output module, 30 AUX stereo bus output module, 40 GROUP / AUX bus output module, 41 mode display, 50 stereo bus output module , 61 Microcomputer, 62 Electric fader, 63 Attenuation control means, 64 Tact switch, 65 Switching control means, 66 Display, 67 Operator, AMP20, AMP21, AMP22, AMP23 Summing amplifier, AUX ST AUX stereo bus, BAL10, BAL11 balance Control unit, EQ1, EQ10 equalizer, FADER1, FADER10 channel fader, FADER20, FADER21, FADER22, FADER23 output fader, G1, G10, G11 input level control unit, LVL1, LVL2, LVL3, LVL10, LVL11, LVL12, LVL13 level control unit , PAN1, PAN2, PAN20 Localization control unit, R Resistor, SB1, SB2, SB10, SB11, SB12, SB13, SB14, SB15 Auxiliary bus, ST stereo bus

Claims (5)

A plurality of mixing buses for mixing supplied audio signals; a plurality of input channel sections for controlling a plurality of input audio signals to be output to the mixing bus; and a first mode and a second for the mixing bus. A mixing device comprising mode setting means for setting a mode,
The input channel section is
Input level control means for controlling the level of the input audio signal;
A plurality of transmission level control means for individually controlling the level of the audio signal output to each mixing bus;
And a plurality of assignment switches for turning on / off the transmission of audio signals to each mixing bus,
In the mode setting means, when the mode of the mixing bus is set to the first mode, the input channel section does not perform level control by the transmission level control means, and the on / off by the allocation switch. When an audio signal is sent to the mixing bus in response to the off control and the mode of the mixing bus is set to the second mode, level control by the sending level control means is performed, and the on by the assignment switch An audio signal is sent to the mixing bus according to the off / off control. Further, an output channel unit that controls and outputs audio signals mixed by the plurality of mixing buses is individually provided in the plurality of mixing buses,
The output channel section includes output level control means for controlling the level of an output audio signal and mode display means for displaying the mode of the mixing bus set by the mode setting means. The mixing apparatus according to claim 1. When the mixing bus mode is set to the first mode, the mixing level in the mixing bus is set to the standard level, and when the mixing bus mode is set to the second mode, the mixing bus is set to the second mode. The mixing apparatus according to claim 1, wherein a mixing level in the mixer is a mixing level that exceeds the standard level. A plurality of mixing bus pairs each including two buses that are paired to mix the supplied audio signals; and a plurality of input channel units that control the plurality of input audio signals and output them to the mixing bus pairs. A mixing apparatus comprising mode setting means for setting a first mode, a second mode, or a third mode for the mixing bus pair,
The input channel section is
Input level control means for controlling the level of the input audio signal;
A localization control means for controlling the localization of the stereo signal;
A plurality of transmission level control means for individually controlling the level of the audio signal output to each mixing bus pair;
And a plurality of assignment switches for turning on / off the transmission of audio signals to each mixing bus pair,
In the mode setting means, when the mode of the mixing bus pair is set to the first mode, level control by the sending level control means and localization control by the localization control means are performed in the input channel section. Rather, an audio signal is sent to the mixing bus pair in accordance with on / off control by the assignment switch, and the level by the sending level control means is set when the mode of the mixing bus pair is set to the second mode. Without being controlled, localization control by the localization control means is performed, and an audio signal is sent to the mixing bus pair in accordance with on / off control by the allocation switch, and the mode of the mixing bus pair is the first mode. When the mode 3 is set, the localization control by the localization control means is Without breaking, and the level control is performed by the transmission level control section, a mixing device, characterized in that the audio signal is sent to the mixing bus pairs in accordance with the ON / OFF control by the assigned switch. When the mode of the mixing bus pair is set to the first mode and the second mode, the mixing level of the mixing bus pair is set to a standard level, and the mode of the mixing bus pair is set to the third mode. 5. The mixing apparatus according to claim 4, wherein the mixing level of the mixing bus pair is set to a mixing level exceeding the standard level.

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