JP2002142286A - Digital mixer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily set the parameters of paired channels. SOLUTION: When a channel pair setting operator (SEL) 75 is operated, a channel is paired with its adjacent channel. When a gang mode setting operator (GANG) 73 is turned on after pairing, a gang mode is set and, when the gain setting operator 72 of either one of the paired channels is operated in the gang mode, the gain of the channel changes and, at the same time, the gain of the other channel also changes while the difference in gain between the channels is maintained. In addition, when a link mode setting operator (LINK) 74 is turned on, a link mode is set and, when the gain setting operator 72 of either one of the paired channels is operated in the link mode, the gain of the channel changes and, at the same time, the gain of the other channel also changes to become the same value as that of the gain of the channel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal processing unit having a plurality of input signal sequences and a plurality of output signal sequences, mixing the plurality of input signal sequences, and outputting the mixed signal to the plurality of output signal sequences. And a digital mixer comprising:

[0002]

2. Description of the Related Art Conventionally, output levels and frequency characteristics of a large number of microphones or electric or electronic musical instruments have been adjusted.
Mixing consoles are known which mix and send them to a group of power amplifiers. The mixer man who operates the mixing console adjusts the volume and tone of each instrument to the state that seems to represent the performance most appropriately by operating the various controls provided on the mixing console. I have. The mixing console has a plurality of microphone / line input input channels as an input signal sequence, and a plurality of output channels which are output signal sequences programmed with the input signal sequence. The signal of each input channel in the input signal sequence is generally amplified by a head amplifier and output to a signal processing unit. Then, the frequency characteristics and the level are adjusted in the signal processing unit, and the signals are mixed in the programmed combination. Next, the output level is set to an arbitrary output level by the output fader and output to one of the output channels.

[0003]

Among such mixing consoles, there is known a mixing console in which odd channels and even channels can be paired.
For example, input channels 1 and 2
And can be paired for stereo input.
As described above, when adjusting the parameter values such as the gain of the head amplifier in the channel set as a pair,
When the parameter value of one channel is changed, the parameter value of the other channel must be adjusted similarly. However, since the parameter values of the two channels must be adjusted by operating independent operators, there is a problem that complicated operations are required to change the parameter values in the same manner. Further, there is a problem in that precise setting accuracy cannot be obtained because strict operation accuracy cannot be obtained when operating the operating element.

Accordingly, an object of the present invention is to provide a digital mixer which can easily set parameters of channels set to be linked and can obtain a precise setting accuracy.

[0005]

In order to achieve the above object, a digital mixer according to the present invention has a plurality of input signal sequences and a plurality of output signal sequences, and mixes the plurality of input signal sequences. A plurality of groups, and a digital mixer including a signal processing unit that outputs the plurality of output signal sequences, wherein the signal processing unit interlocks parameters respectively set to some input signal sequences. Interlock setting means for setting whether or not to set independently, and setting to interlock when the parameters set for a plurality of input signal sequences are set to be interlocked by the interlock setting means. First interlocking control means for interlocking and controlling the relationship between the parameter values set for each of the input signal sequences thus set, and a plurality of input signals by the interlocking setting means. A second interlocking control means for interlocking and controlling the parameter values set in the respective input signal sequences set to be interlocked to be the same when the parameter set in the column is set to be interlocked; There is provided at least a selection unit capable of selecting either one of the interlocking control by the interlocking control unit and the interlocking control by the second interlocking control unit or not selecting either of them.

According to the present invention, when a parameter of one channel is operated on a channel set to be linked, the parameter of another channel changes in conjunction with it. Accordingly, by changing the parameter value of one channel, the interlocking control is performed so that the parameter value of another channel to be interlocked similarly changes. Therefore, only by changing the parameter value of one channel, the parameters of the channels set to be linked can be easily set while maintaining precise setting accuracy. Further, in the linked control, it is possible to select one of a means for holding the difference between the parameter values between the channels and performing a linked control and a means for performing the linked control so that the parameter values between the channels have the same value. , Various modes of interlocking control can be performed. Furthermore, if there is a difference between undesired parameters in the input signal sequence during the interlocking control, each input signal sequence can be set independently, and the interlocking control is performed after adjusting the parameters such as the level. Will be able to

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing a schematic configuration of a digital mixer according to an embodiment of the present invention. FIG.
As shown in FIG.
The mixer includes an input unit 1, a processing unit 2, an output unit 3, and a console unit 4. The input unit 1, the processing unit 2, the output unit 3, and the console unit 4 are independent of each other, and are connected by a digital communication path therebetween. The input unit 1 includes, for example, i input terminals IN1,
, INi, and input signals input from the input terminals IN1, IN2, IN3,..., INi are supplied to the head amplifiers HA1, HA, respectively.
, HA3,..., HAi are amplified to a predetermined level. Input terminals IN1, IN2, IN3
, INi are, for example, microphone / line inputs, and head amplifiers HA1, HA2, HA3,.
The head amplifiers HA1, HA2, HA2 are set so that the level of the input signal output from the HAi becomes substantially a prescribed level.
, HAi are set respectively. The outputs of the head amplifiers HA1, HA2, HA3,..., HAi are converted into digital signals by an analog-digital converter (ADC) 11, and output from the input unit 1 via a communication interface.

A plurality of digitized input signals output from the input unit 1 are input to the processing unit 2 via a digital signal path. The processing unit 2 is capable of adjusting the level and frequency characteristics of the input signal of each input channel for each channel. The adjusted signals of each channel are mixed and grouped into several groups for communication. Output via interface. The level of the output signal is adjustable, and the output signal is sent to a power amplifier and emitted from a speaker. The output signal includes a signal sent back to the performer on the stage (fold
Back: FB), cue signal for audition, etc. Further, the processing section 2 has an effect function for adding effects such as pan and echo to the mixed group. These processes are executed by digital processing in a DSP (Digital Signal Processor) in the processing unit 2.

Further, by pairing two adjacent channels in the processing section 2, a stereo signal can be obtained. The channels to be paired can be any two adjacent channels, but the channel numbers of the odd channels are made smaller than the channel numbers of the even channels. A characteristic configuration of the digital mixer according to the present invention is that, when paired, a gang mode (GANG) or a link mode (LI
NK) is prepared, and when one of the modes is set, the parameters of the paired two channels can be changed in conjunction with each other. The gang mode is a mode in which the parameter value difference between the channels at the time of pairing is held and changed in conjunction with each other. The link mode is a mode in which the parameter values of the respective channels are set to the same value and changed in conjunction with each other. Further, when the gang mode and the link mode are turned off at the time of pairing, the parameters can be set independently for each paired channel.

By pairing two channels, the gang
When set to mode, changing the parameter value such as the level of any paired channel,
The parameter values such as the level of the remaining channels change in conjunction with each other while maintaining the parameter value difference between the channels. This makes it possible to easily change the parameters of the paired two channels such as stereo without performing a complicated setting operation while maintaining the difference. When two channels are paired and set to the link mode, changing the parameter value such as the level of any paired channel causes the parameter value such as the level of the remaining channel to be the same. It changes in conjunction with it. This makes it possible to easily change the parameters of the paired two channels such as stereo without having to perform a complicated setting operation.

In a microphone or the like, a delicate level difference in input level may occur between paired channels due to variations in individual sensitivities and microphone setting conditions. In such a case, both the gang mode and the link mode are turned off. Then, the input level of the paired channels can be independently adjusted for each channel, and a delicate level difference between the channels can be corrected. Thereafter, if the mode is changed to the gang mode, the level and the like can be changed in conjunction with each other without causing a level difference between the paired channels.

The mixed group signals output from the processing unit 2 are output to an output unit 3 via a communication interface. At the output 3, these groups of signals are converted to digital-to-analog converters (DACs).
The signal is converted into an analog signal by 31 and output from output terminals OUT1, OUT2,..., OUTj, respectively. The signals output from the output terminals OUT1, OUT2,..., OUTj are sent to a power amplifier and emitted from a speaker, or sent back to a performer on a stage and emitted from a monitor / speaker.

The control of the input unit 1, the processing unit 2, and the output unit 3 is as follows.
All operations are performed by the console unit 4, and the console unit 3 is provided with a display unit that displays a large number of controls and operation statuses. The console unit 3 is connected to the input unit 1, the processing unit 2, and the output unit 3 via a digital communication path. However, in the console unit 4 shown in FIG. 1, only a part of the operation unit for operating the input unit 1 and a part of the operation unit for operating the processing unit 2 are shown by blocks. When the gain setting operation element 42 is operated in the console unit 4, a control signal corresponding to the operation amount is output from the gain control unit 41 and supplied to the input unit 1. In the input unit 1, the gain of the head amplifier corresponding to the operated gain setting operation element 42 is controlled by the supplied control signal. Thereby, each head amplifier HA1, HA2, HA3,..., HAi
Can be arbitrarily controlled by operating a gain operator (group) 42 of the console unit 4.

The console section 4 is provided with a channel pair setting operator 44 for setting a channel to be paired and a gain setting mode selection operator 43. The channel pair setting operator 44 is provided for each channel.
By operating the h-pair setting operator 44, pairing between adjacent channels is achieved. The gain setting mode selection operator 43 is an operator for setting the above-mentioned gang mode or link mode, and includes a gang mode setting operator and a link mode operator.
A mode setting operator. The gain setting mode selection operator 43 is provided between the odd channel and the even channel, and adjacent channels on both sides are set to the gain setting mode corresponding to the operated operator.

For example, when the gang mode setting operator is turned on, odd channels and even channels sandwiching the operator are set to the gang mode gain setting mode. Thus, when the gain setting operator 42 corresponding to one of the paired channels is operated, the head amplifiers of the paired channels are maintained while the gain difference of the head amplifier between the paired channels is maintained. The gain of the amplifier is changed. When the link mode setting operator is turned on,
The odd-numbered and even-numbered channels sandwiching the operator are set to the link setting gain setting mode. As a result, the gains of the head amplifiers of both paired channels are made equal, and when the gain setting operator 42 corresponding to any of the paired channels is operated, both paired channels have the same value. Thus, the gains of the head amplifiers of both channels are changed. When both the gang mode setting operator and the link mode setting operator are turned off, when the gain setting operator 42 corresponding to any of the paired channels is operated, only the gain of the corresponding channel is obtained. Will be changed.

Next, FIG. 2 shows a hardware configuration of the digital mixer according to the present invention shown in FIG. As shown in FIG. 2, the input unit 1 is configured as an analog input unit, and has input terminals IN1, IN2, I2
The same number of head amplifiers and ADCs as N3,. The output unit 3 is configured as an analog output unit, and has output terminals OUT1 and OU.
The same number of DACs as T2,.

The processing unit 2 is also a unitized signal processing unit 2.
1 and the signal processing unit 21
It is a computer device incorporating P. In the signal processing unit 21, the CPU 54 controls the overall operation of the signal processing unit 21 (Central Processing Unit).
t: CPU), and the MEMORY SYSTEM 55
, A program such as a parameter changing process and a mixing process, and a ROM (Read Only Memory) and a RAM (Random Access Memory) in which a work area of the CPU 54 is set.
emory). DSP SYSTEM52
Since it is composed of a plurality of DSPs and can perform a product-sum operation at a high speed, digital audio signals and the like can be processed in real time. MEMORY SYSTEM53 is DSP SYSTEM
The micro program executed by the DSP 52 and the DSP SYSTEM 52
ROM (Read Only Memo) where the work area of the
ry) and a storage means composed of a RAM (Random Access Memory).

In the DSP SYSTEM 52, digital
In addition to performing control processing of a frequency characteristic of an audio signal and the like and processing of changing a level, reverberation sound and sound effect can be easily added. Interface (I / F) 51,
An interface (I / F) 56 is a communication interface, and is an interface for a digital communication path connecting between the unit of the input unit 1, the unit of the output unit 3, and the unit of the console unit 4. The unit of the input unit 1 and the unit of the output unit 3 also have a communication interface. The bus 57 is a bus for transferring information between the blocks.

The console unit 4 is also unitized,
It is composed of a computer device. In this computer device, a CPU 66 is a central processing unit that controls the entire operation of the console unit 4, and a MEMORY SYSTEM
Reference numeral 65 denotes a program for operation processing and display processing executed by the CPU 66, a ROM (Read Only Memory) in which a work area of the CPU 66 is set, and a RAM (Random Acc.).
ess Memory). The panel unit 62 includes an operator group 6 including many operators operated by the user.
3 and a number of display groups 64 for displaying the setting status of each channel and the like. Interface (I / F) 6
Reference numeral 1 denotes a communication interface, which is an interface for a digital communication path connecting the units with the processing unit 2. The bus 67 is a bus for transferring information between blocks. When any of the operators 63 on the panel unit 62 is operated, the operation is detected by the CPU 66, and a control signal corresponding to the operation amount is generated by the CPU 66. This control signal is sent to the processing unit 2 via the I / F 61, and the parameters of the corresponding channel are controlled based on the control signal. The display according to the operation is displayed on the display group 6.
4 is displayed.

Next, FIG. 3 shows an example of an operator group 63 provided with a display for operating each channel in the panel section 62 provided in the console section 4. FIG. 3 shows an operator group 63 for only four channels, that is, channel 1 (CH1), channel 2 (CH2), channel 3 (CH3), and channel 4 (CH4). The operators of each channel include a gain setting operator 72 composed of a rotary encoder for setting the gain of the head amplifier in the input unit 1 and a gain display in which the gain set by the gain setting operator 72 is displayed. Pair setting operator (SEL) for selecting pairing with the device 71
75 and a fader 76 for setting a level to be output to the mixing bus. Further, between an odd channel and an even channel such as between channel 1 and channel 2 and between channel 3 and channel 4, a gang mode setting operator (GANG) 7 is provided.
3 and a link mode setting operator (LINK) 74 are provided.

Here, when the GANG 73 provided between the channel 1 and the channel 2 is operated and turned on, the GANG 73 is turned on and the gain setting mode of the channel 1 and the channel 2 is set to the gang mode. Is done. Therefore, when the gain setting operator 72 of the channel 1 is rotated, the gain set according to the rotating operation is displayed on the gain display 71 and the changed operation amount is displayed on the gain display 71 of the channel 2. The displayed gain is changed in tandem, and channel 1 is changed.
The gain of each head amplifier is changed while the gain difference between the head amplifier and the channel 2 is maintained.
When the fader 76 of the channel 2 is operated up and down, the fader 76 of the channel 1 is changed by the changed operation amount.
Move in conjunction with each other, and the level is changed while the level difference between channel 2 and channel 1 is maintained. Since the fader 76 is driven by a motor, the linked fader 76 automatically moves.

Further, when the LINK 74 provided between the channel 3 and the channel 4 is operated to be turned on, the LINK 74 is turned on and the channel CH3 is turned on.
The gain setting mode for channel CH4 is set to the link mode. Accordingly, the gains displayed on the gain display 71 displaying the gain of the channel 3 and the gain display 71 displaying the gain of the channel 4 have the same value, and the fader 76 of the channel 4 is displayed.
Moves, and the fader 76 of the channel 3 and the fader 76 of the channel 4 have the same value. Here, when the gain setting operator 72 of the channel 3 is rotated, the gain set according to the operation is displayed on the gain display 71 and the changed operation amount is displayed on the gain display 71 of the channel 4. The displayed gain is changed in conjunction therewith, and the gains of the head amplifiers in channel 3 and channel 4 are changed so as to have the same value. Further, when the fader 76 of the channel 4 is operated up and down, the fader 76 of the channel 3 is changed by the changed operation amount.
Move in conjunction with each other, and the level is changed while the levels of channel 4 and channel 3 remain the same.

Next, a flowchart of the pairing setting process executed in the console unit 4 is shown in FIG. The pairing setting process shown in FIG. 4 is activated when one of the operators provided for each channel is operated. Then, the operator operated in step S1 is ch.
It is determined whether or not the pair setting operator (SEL) 75 is set. Here, the channel pair setting operator (SE
If the ON event of L SWn) is detected, YES is determined and the process proceeds to step S2. In step S2, it is determined whether the pair flag (PAIRFLG _n ) of channel n is “0”. If PAIRFLG _n = 0, the flow advances to step S3 to determine whether or not the channel number n of the channel n is an odd number. If the channel number n is an odd number, the process proceeds to step S4, where the pair flag (PAIRFLG _n ) of the channel n is set to “1”, and the channel (n + 1) of the channel number (n + 1) is set to an even number. Peafuragu of) (PAIRFLG _{n + 1)} is set to "0". Thereby, the pairing of the odd-numbered channel n and the even-numbered channel (n + 1) is set.
When the processing in step S4 ends, the pairing setting processing ends and the process returns.

If the channel number n is an even number, the process branches from step 3 to step S5 and the pair flag (PAIRFLG _n-1 ) of the odd channel (n-1) is set.
Is set to “0” and an even channel n
Of the pair flag (PAIRFLG _n ) is set to “1”. Thereby, the odd-numbered channel (n-1) and the even-numbered channel n
Are paired. When the processing in step S5 ends, the pairing setting processing ends and the process returns. As described above, the channel numbers for the pairing setting are such that the odd-numbered channel numbers are smaller than the even-numbered channel numbers.

Further, if PAIRFLG _n = 1 in step S2, the channel pair setting operator (SEL SWn) for channel n is turned off, and it is determined that the setting for canceling pairing has been made. . In this case, the process branches to step S6, and the pair flag (PAIRFL
G _n ) is set to “0”, whereby the pairing including channel n is released. When the processing in step S6 ends, the pairing setting processing ends and the process returns. The channel pair setting operation element (SEL) 75 is switched on / off every time the operation is performed as described above. Furthermore, if it is determined that the operator operated in step S1 is not the ch pair setting operator (SEL) 75, the pairing setting process is terminated and the process returns.

Next, FIG. 5 shows a flowchart of a MODE selection setting process for selecting a gain setting mode executed by the console unit 4. The MODE selection setting process shown in FIG. 5 is activated when any of the operators provided for each channel is operated. The operator operated in step S10 is a gang mode setting operator (G
ANG) 73 is determined. Here, a gang mode setting operator (GANG SWm) for pair m
Is detected, the determination is YES, and the process proceeds to step S11. In step S11, it is determined whether the gang flag (GANGFLG _m ) of the pair m is “0”. Here, if GANGFLG _m = 0, the process proceeds to step S12, where the gang flag (GANGFLG
G _m ) is set to “1”, and the link flag (LINKFLG _m ) of the pair m is set to “0”. Step S1
When the process of step 2 is completed, the MODE selection setting process is terminated and the process returns.

Here, the pair m will be described. The pair m is a pair of an odd channel k and an even channel (k + 1). Then, odd channel k in pair m
Is represented as k = 2m−1, and the channel number (k + 1) of the even-numbered channel (k + 1) is 2m
It is expressed as That is, it is represented as m = (k + 1) / 2. If the on event of the gang mode setting operator (GANG SWm) in the pair m is not detected in step S10, the process branches to step S13. In step S13, it is determined whether or not the operated operator is a link mode setting operator (LINK) 74.
Here, the link mode setting operator (L
INK SWm) is detected, the YE
S is determined and the process proceeds to step S14. Step S14
Then, it is determined whether or not the link flag (LINKFLG _m ) is “0”. Here, if LINKFLG _m = 0,
Proceeding to step S15, the link flag of the pair m (LINK
FLG _m ) is set to “1”, and the gang flag (GANGFLG _m ) of the pair m is set to “0”. When the process in step S15 ends, the MODE selection setting process ends and the process returns.

Further, when it is determined in step S11 that the gang flag (GANGFLG _m ) of the pair m is set to “1”, and in step S14, the link flag (LINKFLG _m ) of the pair m Is set to “1”, the flow branches to step S16, where the gang flag (GANGFLG _m ) of the pair m is set to “0” and the link flag ( LINKFLG _m ) is set to “0” and the gang mode and link
The mode is turned off. When the process in step S16 ends, the MODE selection setting process ends and the process returns.
Thus, the gang mode setting operator (GANG)
73 and a link mode setting operator (LINK) 74
Is switched on / off each time the user operates the device. Furthermore, if it is determined in step S13 that the operator operated is not the link mode setting operator (LINK) 74, the MODE selection setting process is terminated and the process returns.

Next, by operating the gain setting operator 42 in the console unit 4, a control signal output from the gain control unit 41 controls the head amplifier gain in the input unit 1 in a Head Amp GAIN setting process. The flowcharts are shown in FIGS. When the gain setting operator 42 is operated, the Head Amp GAIN setting process is started, and the channel number n is set to 1, that is, the channel 1 in step S20. In the subsequent processing, different processing is performed depending on whether the channel number n is an odd number or an even number. Therefore, the processing when the channel number n is set to channel 1 will be described below assuming that the channel number n is an odd number. Do. In step S21, an operation event and an operation amount of the gain setting operator (GAINn) of the odd-numbered channel n are detected, and based on the detection result, whether or not the gain setting operator (GAINn) of the odd-numbered channel n is operated in step S22. Is determined. Here, if the gain setting operator (GAINn) of the odd-numbered channel n is operated, the operation event is detected, so that YES is determined, and the process proceeds to step S23.

In step S23, the current channel number
Signal is odd, but the current channel is odd.
Since the number of channels is n, step S24
Proceed to. In step S24, a pair of odd channels n
Flag (PAIRFLG_n) Is set to "1" or
Is the even channel paired with the odd channel n
(N + 1) pair flag (PAIRFLG_{n + 1}) Is "1"
Is determined. Here, odd channel n
And even channel (n + 1) are paired
And the odd channel n pair flag (PAIRFLG_n)is there
Or even channel (n + 1) pair flag (PAIRFLG
_{n + 1}) Is set to “1”, so it is determined as YES.
Proceed to step S25. Odd channel n and even channel
If paired with the flannel (n + 1), the pair
The number m is m = (n + 1) / 2, as described above.
In step S25, the gang flag (GANGFL
G _m) Is set to “1”. This
Here, the gang is set as the gain setting mode for the pair m.
・ If the mode is set,
Proceed to step S26.

In step S26, since the channel number n is set to an odd number and the gang mode is set, the gain G (n + 1) set to the even-numbered channel (n + 1) is equal to the previously set gain. G
In (n + 1), the operation amount GAIN of the gain setting operator (GAINn) of the odd-numbered channel n detected in step S21.
VALUE _n is the added value. The gain Gn set for the odd-numbered channel n is equal to the previously set gain Gn, and the operation amount GAINVA of the gain setting operator (GAINn) for the odd-numbered channel n detected in step S21.
LUE _n is a value added. As described above, when the channel number n is set to the odd number and the gang mode is set, the operation amount of the gain setting operator (GAINn) of the odd number channel n is changed to the even number (n
+1) is added to the gain amount G (n + 1) and changed in conjunction therewith. Incidentally, the gain to be set includes a maximum gain Gmax and a minimum gain Gmin, and it is not possible to set the gain above the maximum gain Gmax or below the minimum gain Gmin. Therefore, in step S26, the calculation shown in FIG. 9A is performed to calculate the gain of the even channel and the odd channel.

That is, first, the gain Gn of the odd-numbered channel n and the gain G (n + 1) of the even-numbered channel (n + 1)
Is obtained from the following equation (1). Dif = Gn-G (n + 1) (1) Then, the following formulas (2) and (3) are operated to obtain the gain Ga and the gain Gb. _{Ga = Gn + GAINVALUE n (2} ) Gb = G (n + 1) + GAINVALUE n (3) However, GAINVALUE _n is an operation amount of the gain setting operators (GaInN) of odd channel n.

When neither the gain Ga nor the gain Gb is equal to or greater than the maximum gain Gmax and equal to or less than the minimum gain Gmin, the gain Ga is set as the gain Gn of the odd channel n and the gain Gb is set to the even channel (n + 1). Set as gain G (n + 1). Either the gain Ga or the gain Gb is the maximum gain G
If it exceeds max or less than the minimum gain Gmin, it is limited to Gmin or Gmax so that it does not deviate from the gain that deviates from the range of Gmin to Gmax, or if both deviate greatly. I do. And
Set the remaining gain so that the difference between the limited gain and the remaining gain is Dif. That is, the following (4)
Make sure that the formula holds. Ga-Gb = Dif (4) Explaining concretely, it is assumed that the gain Ga becomes equal to or more than the maximum gain Gmax. In this case, Ga = Gmax
To limit the gain Ga to Gmax. Then, the gain Gb is calculated as Gb = Gmax-Dif. Thus, even if one of the gains is limited, the gain difference between the odd-numbered channel n and the even-numbered channel (n + 1) is maintained.

When the process of step S26 is completed, FIG.
In step S44, it is determined whether or not the channel number n has reached the maximum channel number (MAXCH). If the first process has been executed, it is determined that the channel is channel 1, so that the determination is NO, and the process branches to step S45, where the channel number is incremented by 1 to be channel 2. Then, the process returns to step S21. The processing after step S21 in this case will be described later.

In step S25, the gang flag (GANGFLG _m ) of the pair m is set to “0”.
If it is determined that the gang mode is not set as the gain setting mode for the pair m, the process proceeds to step S
Branch to 27. In step S27, it is determined whether the link flag (LINKFLG _m ) of the pair m is set to “1”. Here, if the link mode is set as the gain setting mode for pair m, YES
It proceeds to step S28. In step S28, it is determined whether the pair flag (PAIRFLG _n ) of the odd-numbered channel n is set to “1”, and the pair flag (PAIRFLG _n ) is determined.
If it is determined that “ _n ” is “1”, the process proceeds to step S29.

In this case, of the paired channels, the channel to be linked is an even channel (n +
In step S29, the gain Gn set for the odd-numbered channel n is replaced by the gain Gn set for the last time, and the gain setting operator (GAINn) for the odd-numbered channel n detected in step S21. ) Is the value obtained by adding the manipulated variable GAINVALUE _{n in (} ). Next, in step S30, the gain Gn of the odd-numbered channel n is set as the gain G (n + 1) of the even-numbered channel (n + 1) paired with the odd-numbered channel n because of the link mode. That is, when the link mode is set and the pair flag (PAIRFLG _n ) of the odd channel n is set to “1”, the gain Gn of the odd channel n is set to the even channel (n +
The gain G (n + 1) of 1) is changed so as to have the same value in conjunction with it.

Further, if the pair flag (PAIRFLG _n ) of the odd channel n is determined to be “0” in step S28, the even channel (n
The pair flag (PAIRFLG _{n + 1} ) of (+1) is determined to be “1”, and the process proceeds to step S31. In this case, among the paired channels, the channel to be linked is set to the odd channel n. In step S31, the gain G set to the even channel (n + 1) is set.
(N + 1) is the gain G (n + 1) set previously.
To be a value manipulated variables GAINVALUE _n gain setting operators (GaInN) has been added in the detected odd channel n at step S21. Next, proceeding to step S32, the odd channel n paired with the even channel (n + 1) because of the link mode.
Is set as the gain G (n + 1) of the even-numbered channel (n + 1). That is, when the link mode is set and the pair flag (PAIRFLG _{n + 1} ) of the even channel (n + 1) is set to “1”, the gain G (n + 1) of the even channel (n + 1) is added to the gain G (n + 1) of the even channel (n + 1). The gain Gn is changed so as to have the same value in conjunction with it.

If it is determined in step S27 that the link flag (LINKFLG _m ) of the pair m has been set to "0", the link has been made in the gang mode and the link mode in the gang mode. Is not set, the process branches to step S33, and the gain Gn set for the odd-numbered channel n is changed to the previously set gain Gn.
To be a value manipulated variables GAINVALUE _n gain setting operators (GaInN) has been added in the detected odd channel n at step S21. That is, only the gain of the channel corresponding to the operated gain setting operator is changed. As described above, when both the gang mode and the link mode are turned off while being paired, the gain of the paired odd channels can be adjusted independently to absorb the level difference between the channels. It can be corrected. The gain of the even-numbered channels can also be adjusted independently, but the description will be given later.

Further, in step S24, the odd number
Channel n pair flag (PAIRFLG _n) And even Chang
Flannel (n + 1) pair flag (PAIRFLG_{n + 1}) Together
Set to “0” and determined not to be paired
If so, the process branches to step S33. In step S33
Is the gay set to odd channel n as described above.
Gn is set to the gain Gn set last time,
Gain setting operation for odd-numbered channel n detected in S21
Manipulation amount GAINVALUE of child (GAINn)_nValue to which is added
It is said. In other words, it corresponds to the operated gain setting operator
Only the gain of the channel to be changed is changed.

By the way, from step S45 to step S45
When the process is returned to 21, the process for channel 2 is performed, and this process will be described below assuming that channel n is an even channel. In step S21, an operation event and an operation amount of the gain setting operator (GAINn) of the even-numbered channel n are detected, and based on the detection result, whether or not the gain setting operator (GAINn) of the even-numbered channel n is operated in step S22. Is determined. Here, if the gain setting operator (GAINn) of the even-numbered channel n has been operated, the operation event is detected, so that the determination is YES, and the process proceeds to step S23.

In step S23, the current channel number
Signal is odd, but the current channel is even.
Since there are several channels, the steps shown in FIG.
Proceed to step S34. In step S34, the even channel
The next lower channel number to be paired adjacent to n
Pair flag (PAIRFL) of odd channel (n-1)
G _n-1) Is set to “1” or the even channel n
Aflag (PAIRFLG_n) Is set to "1"
Is done. Here, odd channel (n-1) and even channel
If channel n is paired, odd channel
(N-1) pair flag (PAIRFLG_n-1) Or even
Channel n pair flag (PAIRFLG_n) Is "1"
Is determined, the determination is YES and the process proceeds to step S35.
No. Odd channel (n-1) and even paired
If the pair number with channel n is m, step S3
The gang flag of pair m at 5 (GANGFLG_m)But
It is determined whether or not “1” is set. here,
Gang mode as gain setting mode for pair m
Is set, YES is determined and step S
Proceed to 36.

In step S36, since the channel number n is set to an even number and the gang mode is set, the gain G (n-1) set to the odd channel (n-1) is set to the previously set value. Gain G
In (n-1), the operation amount GAIN of the gain setting operator (GAINn) of the even-numbered channel n detected in step S21.
VALUE _n is the added value. The gain Gn set for the even-numbered channel n is equal to the previously set gain Gn, and the manipulated variable GAINVA of the gain setting operator (GAINn) for the even-numbered channel n detected in step S21.
LUE _n is a value added. As described above, when the channel number n is set to the even number and the gang mode is set, the operation amount of the gain setting operator (GAINn) of the even number channel is changed to the odd number channel (n−n).
It is added to the gain amount G (n-1) of 1) and changes in conjunction with it. As described above, the gains to be set include the maximum gain Gmax and the minimum gain Gmin, and the gain cannot be set above the maximum gain Gmax or below the minimum gain Gmin. Therefore, in step S36, the calculation shown in FIG. 9B is performed to calculate the gains of the odd-numbered channels and the even-numbered channels.

First, the difference Di between the gain G (n-1) of the odd-numbered channel (n-1) and the gain Gn of the even-numbered channel n is calculated.
f is obtained from the following equation (5). Dif = G (n-1) -Gn (5) Next, the following formulas (6) and (7) are operated to obtain the gain Ga and the gain Gb. Ga = G (n-1) + GAINVALUE n (6) Gb = Gn + GAINVALUE n (7) However, GAINVALUE _n is an operation amount of the gain setting operators (GaInN) of even channel n.

If neither the gain Ga nor the gain Gb is equal to or larger than the maximum gain Gmax and equal to or smaller than the minimum gain Gmin, the gain Ga is set to the odd channel (n−n).
The gain G (n-1) of 1) is set, and the gain Gb is set as the gain Gn of the even-numbered channel n. Also,
Either the gain Ga or the gain Gb is the maximum gain Gmax
If the gain is less than or equal to or less than the minimum gain Gmin, the gain is limited to Gmin or Gmax so as not to deviate from the gain that deviates from the range of Gmin to Gmax, or if both deviate greatly. . And
Set the remaining gain so that the difference between the limited gain and the remaining gain is Dif. That is, the following (8)
Make sure that the formula holds. Ga-Gb = Dif (8) Explaining concretely, it is assumed that the gain Ga is equal to or larger than the maximum gain Gmax. In this case, Ga = Gmax
To limit the gain Ga to Gmax. Then, the gain Gb is calculated as Gb = Gmax-Dif. Thus, even if one of the gains is limited, the gain difference between the odd-numbered channel (n-1) and the even-numbered channel n is maintained.

When the process of step S36 is completed, the process proceeds to step S44, where it is determined whether or not the channel number n has become the maximum channel number. Here, if the channel number n is the maximum channel number, the Head Amp GAIN
The setting process is terminated and returned. If the channel number n has not reached the maximum channel number,
The process branches to step S45, where the channel number is incremented by 1, and returns to step S21 to repeat the above-described processing.

In step S35, the gang flag (GANGFLG _m ) of the pair m is set to “0”.
If it is determined that the gang mode is not set as the gain setting mode for the pair m, the process proceeds to step S
Branch to 38. In step S38, it is determined whether the link flag (LINKFLG _m ) of the pair m is set to “1”. Here, if the link mode is set as the gain setting mode for pair m, YES
It proceeds to step S39. In step S39, the pair flag (PAIRFLG) of the odd-numbered channel (n-1) is set.
_n-1 ) is set to "1", and the pair flag (P
If AIRFLG _n-1 ) is determined to be “1”, step S
Proceed to 40.

In this case, the channel to be linked among the paired channels is set to the even channel n, and in step S40, the gain G (n-1) set to the odd channel (n-1) is set. ) Is added to the previously set gain G (n-1) in step S21.
The gain setting operator (G
Operation amount GAINVALUE _n of AINn) is an added value. Next, the process proceeds to step S41, where the gain G (n-1) of the odd-numbered channel (n-1) is set as the gain Gn of the even-numbered channel n paired with the odd-numbered channel (n-1) because of the link mode. -1) is set. That is, the link mode is set, and the pair flag (PAIRFLG) of the odd channel (n-1) is set.
_{When (n-1} ) is "1", the gain G (n-1) of the odd-numbered channel (n-1) and the gain Gn of the even-numbered channel n are changed to have the same value.

Further, when the pair flag (PAIRFLG _n-1 ) of the odd channel (n-1) is determined to be "0" in step S39, the pair flag (PAIRFLG _n ) of the paired even channel n is set to "0". 1 ”is determined, and the process proceeds to step S42. In this case, among the paired channels, the channel to be linked is the odd channel (n-1). In step S42, the gain Gn set to the even channel n is set previously. In step S, the gain Gn
Operation amount GAINVALUE _n gain setting operators of the detected even channel n (GaInN) is an added value by 21. Next, the process proceeds to step S43, where the gain G (n-1) of the odd channel (n-1) paired with the even channel n because of the link mode is set.
As −1), the gain Gn of the even-numbered channel n is set. That is, when the link mode is set and the pair flag (PAIRFLG _n ) of the even channel n is set to “1”, the gain Gn of the odd channel (n−1) is added to the gain Gn of the even channel n. 1) is changed to have the same value in conjunction with it.

If it is determined in step S38 that the link flag (LINKFLG _m ) of the pair m has been set to “0”, the pair has been paired but the gang mode is set to the link mode. Is not set, the process branches to step S37, and the gain Gn set for the even-numbered channel n is changed to the previously set gain Gn.
To be a value manipulated variables GAINVALUE _n gain setting operators (GaInN) has been added in the detected even channel n at step S21. That is, only the gain of the even-numbered channel corresponding to the operated gain setting operator is changed. As described above, when both the gang mode and the link mode are turned off while being paired, the gains of the odd channel and the even channel that are paired are independently adjusted in step S33 or step S37. Thus, the level difference between the channels can be corrected for absorption.

[0050] Furthermore, in step S34, is Peafuragu the odd channel _{(n-1) (PAIRFLG n} -1) and the even channel n Peafuragu (PAIRFLG _n) are both "0", not paired If it is determined, the process branches to step S37. At step S37, the gain Gn is set to the even channel n as described above is the gain Gn being previously set, the operation amount GAINVALUE _n gain setting operators of even channel n detected at step S21 (GaInN) Is the value added. That is, only the gain of the channel corresponding to the operated gain setting operator is changed.

If it is determined in step S22 that the gain setting operator (GAINn) has not been operated, the flow advances to step S44 to determine whether or not the channel number n has become the maximum channel number as described above. Is determined. Here, if the channel number n is the maximum channel number, it means that the processing up to the last channel has been completed, and the Head Amp GAIN setting processing ends and returns. If the channel number n is not the maximum channel number, step S45
, The channel number is incremented by 1, and the process returns to step S21 to repeatedly execute the above-described processing.

Although two channels are paired, the present invention is not limited to this, and three or more channels may be linked and controlled as a group. Also, if the setting value of the head amplifier of the channel that is linked and controlled when the link mode is set is different, if one setting value is made equal to the other setting value, click noise or sudden change in output level When there is a possibility that a failure may occur due to the above, it is preferable to gradually change the other set value to one set value by interpolation or the like to obtain the same value. In this case, the output of the channel may be temporarily muted until the set values are completed.

In the above description, the head amplifier gain Gn of each corresponding channel is continuously changed by a rotary operator such as a rotary encoder.
In addition to being able to set, in the link mode, the related channels are linked so as to have the same value. The present invention is not limited to this. A plurality of push-button switches and the like are further provided for each channel, an arbitrary value is allocated and stored for each channel, and the head amplifier gain Gn can be set by reading it out by operating the switch. You may. At this time, if the link mode is set, the assigned storage value may be read out in conjunction with the link mode. A typical example will be described. In addition to a rotary operator GAINn for setting a head amplifier gain Gn for each channel n, two push button switches PSWAn and PSWBn are provided, and each push button switch is provided. Arbitrary set values GAn and GBn set by the rotary operator GAINn can be assigned to PSWAn and PSWBn. And a push button switch PSWAn
Is pressed, the head amplifier gain Gn is set to the set value GA.
n so that the head amplifier gain Gn becomes the set value GBn when the push button switch PSWBn is depressed.
One of the set values GAn and GBn can be selected and set.

Here, channel n and channel (n +
If 1) is set to pair mode and link mode,
When either the push button switch PSAn or the push button switch PSWA (n + 1) is pressed, the head amplifier gain Gn is set to the set value GAn, and the head amplifier gain G (n + 1) is set to the set value GA (n + 1). It is supposed to be. On the other hand, the push button switch PSWBn or the push button switch PSWB (n +
When any one of 1) is pressed, the head amplifier gain Gn is set to the set value GBn, and the head amplifier gain G (n + 1) is set to the set value GB (n + 1). As described above, even when the link mode is set, the set values GAn and GA (n + 1) and the set values GBn and GB (n + 1) are not linked so that the set values become the same value, and the assigned storage is performed. The values are read out in conjunction with each other.

[0055]

As described above, the present invention is configured as described above.
When a parameter of one channel is operated, a parameter of another channel changes in conjunction with the operation. Accordingly, by changing the parameter value of one channel, the interlocking control is performed so that the parameter value of another channel to be interlocked similarly changes. Therefore, only by changing the parameter value of one channel, the parameters of the channels set to be linked can be easily set while maintaining precise setting accuracy. Further, the interlocking control includes means for interlocking control by holding a parameter value difference between channels,
Since it is possible to select one of the means and the means for performing the interlocking control so that the parameter values between the channels become the same value, it is possible to perform the interlocking control in various modes. Furthermore, if there is a difference between undesired parameters in the input signal sequence during the interlocking control, each input signal sequence can be set independently, and the interlocking control is performed after adjusting the parameters such as the level. Will be able to

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a digital mixer according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a hardware configuration of a digital mixer according to the embodiment of the present invention.

FIG. 3 is a diagram showing an example of an operator group provided with a display for operating each channel provided in the console unit according to the embodiment of the present invention.

FIG. 4 is a flowchart of a pairing setting process executed in the console unit according to the embodiment of the present invention.

FIG. 5 is a flowchart of a MODE selection setting process for selecting a gain setting mode executed by the console unit according to the embodiment of the present invention.

FIG. 6 shows a Head Amp GAIN according to an embodiment of the present invention.
It is a part flowchart in a setting process.

FIG. 7 shows a Head Amp GAIN according to the embodiment of the present invention.
It is a part flowchart in a setting process.

FIG. 8 shows a Head Amp GAIN according to the embodiment of the present invention.
It is a part of flowchart left in the setting process.

FIG. 9 shows a Head Amp GAIN according to the embodiment of the present invention.
It is a figure which shows a part of process of a setting process in detail.

[Explanation of symbols]

1 input section, 2 processing section, 3 console section, 3 output section, 4 console section, 11 ADC, 21 signal processing section, 31 DAC, 41 gain control section, 42 gain setting operator, 43 gain setting mode selection operator, 44
Channel pair setting operator, 51 I / F, 52 DSP SYSTE
M, 53 MEMORY SYSTEM, 54 CPU, 55 MEMORY
SYSTEM, 56 I / F, 57 bus, 61 I / F,
62 panel unit, 63 operator group, 64 display group, 6
5 MEMORY SYSTEM, 66 CPU, 67 bus, 71
Gain display, 72 Gain setting operator, 73 Gang mode setting operator, 74 Link mode setting operator, 75 channel pair setting operator, 76 fader, H
A1 to HAi head amplifier, IN1 to INi input terminals, OUT1 to OUTj output terminals

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5D020 BB01 5J092 AA02 AA24 AA57 CA00 FA00 KA33 KA34 KA67 QA04 TA01 TA07 VL04

Claims (1)

[Claims] 1. A signal processing unit having a plurality of input signal sequences and a plurality of output signal sequences, mixing the plurality of input signal sequences into a plurality of groups, and outputting the plurality of groups to the plurality of output signal sequences. A digital mixer comprising: a signal processing unit comprising: a link setting unit that sets whether a parameter set for each of a number of input signal sequences is set in a linked manner or independently set; When the parameters set for a plurality of input signal series are set to be linked by the link setting means, the link between the parameter values set for the respective input signal series set to be linked is maintained and linked. First interlocking control means for controlling, and interlocking when parameters set in a plurality of input signal sequences are set to be interlocked by the interlocking setting means; Second interlocking control means for interlocking and controlling the parameter values set for each set input signal sequence as the same value; interlocking control by the first interlocking control means; and interlocking control by the second interlocking control means. Selecting means for selecting whether to select one of the interlocking controls or not to select any of them.