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JPH0742219

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DESCRIPTION JPH0742219
[0001]
[Industrial field of application] In this invention, in an audio control console used for mixing work
in a studio etc., the volume balance of fader groups set as a group of input channels for
commonly performing volume control is determined. This invention relates to a cue (Cue)
apparatus for hearing listening, which can be listened to with simple operation.
[0002]
2. Description of the Related Art An audio control console is used to individually adjust the
volume of audio signals of a plurality of input channels or to mix the audio signals of other input
channels and lead them to an arbitrary output channel. Ru.
[0003]
The circuit configuration (one input and one output channel) of a conventional audio control
console is shown in FIG.
The input signal is input to the bus assigner 12 after being adjusted in volume by the channel
fader 10. The bus assigner 12 is for assigning input channels to arbitrary output channels, and
includes switches corresponding to each output channel, and one or more switches are turned on
in response to the operation of the operator to bus line input signals. Lead to output line 18 via
16. The signal led to the output line 18 is adjusted in volume for each output channel by the
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fader 22 through the summing amplifier 20 and output.
[0004]
In an audio control console, a cue circuit is provided to detect an input signal and an output
signal. The cue circuit includes a PFL (Pre Fader Listen) for detecting a signal before volume
adjustment by a fader, and an AFL (After Fader Listen) for detecting a signal after volume
adjustment by a fader. The input signal cue (input cue) is generally PFL in order to listen to the
input signal itself, and the signal before the channel fader 10 is queued via the cue switch 24 as
shown in FIG. It leads to 26. Further, the output signal queue is often AFL for detecting the
output signal, and the output signal of the fader 22 is led to the queue bus 26 via the queue
switch 28 as shown in FIG. However, there are some cases where a queue of output signals
employs a PFL for detecting a signal in front of the fader 22 as indicated by a dotted line 30 in
FIG. 2 in order to detect the output signal of the bus line 16.
[0005]
The signal led to the cue bus 26 is led to the cue output line 36 through the summing amplifier
32 and the cue monitor level roll 34, and is led to the headphone or monitor speaker.
[0006]
As a function of the volume control console, there is a fader group function.
This is a function to adjust the volume commonly for a plurality of input channels. This is a
function prepared to adjust the volume balance with other fader groups while maintaining a
constant volume balance for a plurality of input channels in the fader group. That is, a plurality
of input channels to be kept at a constant volume balance are assigned to the same fader group,
the faders of the individual input channels are adjusted, and the volume balance in the fader
group is adjusted in advance to a desired state. By operating the faders (fader group fader
operators), the volume of the entire group can be increased or decreased while keeping the
volume balance in the fader group constant. As shown by the dotted line 36 in FIG. 2, the volume
adjustment by the fader group master group is controlled by the channel fader 10 according to
the operation information of the fader group fader control, or inserted into this input channel
line separately from the channel fader 10. This is realized by controlling a VCA (voltage control
amplifier) or the like.
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[0007]
When using an audio control console having a fader group function, it is convenient if it is
possible to check the volume balance state of the input channel in an arbitrary fader group.
However, according to the conventional circuit of FIG. 2, only the volume balance of the
individual input channels or a plurality of input channels assigned to one output channel can be
inspected and listened to, and a plurality of fader groups are assigned. It was not possible to
check the volume balance of the input channel of.
[0008]
Also, if individual cue switches 24 of a plurality of channels assigned as fader groups are turned
on, audio signals of the fader groups can be detected, but because of PFL, confirmation of the
volume balance could not be made. In addition, even if the listening is done ignoring the volume
balance, it is troublesome for the cue switches 24 of the input channels included in the fader
group to be individually operated.
[0009]
This invention solves the problems in the above-mentioned prior art, and it is possible to make a
cue group device of a fader group in an audio control console which makes it possible to listen to
an audio signal of a fader group with simple operation and volume balance. Is to provide.
[0010]
SUMMARY OF THE INVENTION In the present invention, an input signal transmission line to
which input signals of a plurality of input channels are respectively supplied, and an input signal
transmission line respectively inserted into the input signal transmission line are supplied to the
transmission line. Input volume level adjusting means for adjusting the volume level of the input
signal, output channel assignment instruction operation means for instructing the assignment of
the input signal to an arbitrary output channel, and the input signal having the adjusted volume
level Output channel assignment control means for controlling assignment to the output channel
instructed by the output channel assignment instructing operation means, an output signal
transmission line to which a signal assigned to the output channel is supplied, and volume
control of the input channel To assign to any fader group that does common Assign fader group
assignment instruction operation means for performing operation, fader group volume
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adjustment operation means for performing volume adjustment operation on the input channel
assigned to the fader group, and assign operation information of the fader group volume
adjustment operation means to the fader group Fader group volume control information
transmission means for transmitting to the volume level adjustment means of the input channel
to adjust the volume level, a cue signal output line to which a cue signal is led, and a cue signal
for an arbitrary fader group Fader group cue output instruction operation means for performing
an instruction operation, and the volume signal of the input channel assigned to the fader group
instructed by the fader group cue output instruction operation means is the cue signal output
signal Those formed by and a fader group queue output control means for directing the emission.
[0011]
According to the present invention, when the fader group for outputting the cue signal is
instructed by the fader group cue output instructing operation means, the fader group cue
output control means receives the input assigned to the instructed fader group. Since the volume
level adjusted signal of the channel is led to the cue signal output line, the audio signal of the
fader group including the volume balance can be inspected with a simple operation.
[0012]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present
invention will be described below.
Here, a case where the present invention is applied to a voice control console 40 in which mixer
modules are arranged as shown in a plan view of FIG. 3 will be described.
The audio control console 40 comprises n input modules 42, four group master modules 44 and
one output master module 46.
An input signal is input to each input module 42 one channel at a time. These input signals are
individually assigned to four groups of group master modules 44 after their volume levels and
the like are adjusted. Then, after the volume level etc. is adjusted for each output group (note: a
group for guiding the input signal to the output in a group other than the fader group) by the
group master module 44, the output master module 46 Finalized volume level adjustment etc.
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[0013]
Some of the controls disposed on the panels of the modules 42, 44 and 46 are shown in FIG. As
shown in FIG. 4A, in the input module 42, as shown in FIG. 4A, a channel fader control 48 for
adjusting the volume level of each input channel, and an output channel assignment for selecting
and operating the output channels OG1 to OG4 to which the input channels are assigned. An
operator 50, an fader group allocation operator 52 for selecting and operating the fader groups
FG1 to FG4 to which the input channels are allocated, and an input channel cue output
instruction operator 54 for instructing the input channel signal to be output to the cue output It
is set up. Indicator lamps 56, 58, 60 are disposed on the sides of the respective operators 50, 52,
54 (push buttons), and output channels and fader groups to which the input channels are
assigned and cues of the input channels. The output instruction state is displayed.
[0014]
As shown in FIG. 4B, the group master module 44 has an output group fader control 62 for
adjusting the volume level of the output groups OG1 to OG4 as an output group control, and the
output group faders 62 of this output group. An output group cue output instruction operator 64
for directing a signal to a cue output and an indicator lamp 66 for indicating that the cue output
is instructed are provided. In addition, as faders for the fader group, the fader group fader
manipulator 68 for adjusting the volume level of the fader groups FG1 to FG4 and a fader group
cue output instruction manipulator 70 for directing the signal of this fader group to the cue
output An indicator lamp 72 is provided to indicate that the cue output is instructed.
[0015]
The output master module 46 is provided with an output master fader operator 74 for adjusting
the volume level of the final output.
[0016]
The circuitry incorporated within the audio console 40 of FIG. 3 is shown in FIG.
The first to n-th channel input signals I1 to In are input from the input terminals 76-1 to 76-n
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and are led to input signal transmission lines 78-1 to 78-n. The volume levels of these input
signals I1 to In are adjusted by input volume level adjusters 80-1 to 80-n. The input volume level
adjusters 80-1 to 8-0-n are mechanically connected to the channel fader operator 48 (FIG. 4A),
and the operation of the operator 48 adjusts the volume level. . The input volume level adjusters
80-1 to 80-n are also operable by motor drive, and the volume level adjustment is performed by
motor drive when adjusting the volume level by the fader group.
[0017]
The signal of each input channel whose volume level has been adjusted is input to the bus
assigners 82-1 to 82-n. In the bus assigners 82-1 to 82-n, switches interlocking with the output
channel assignment operators 50 (FIG. 4A) are built in, and the operators among the bus lines 84
corresponding to the output channels are input signals. Lead to what is indicated at 50. The
signals assigned to bus line 84 are led to output signal transmission lines 86-1 to 86-4, and
output group volume level adjusters 90-1 to 90-4 via summing amplifiers 88-1 to 88-4. Supplied
to The output group volume level adjusters 90-1 to 90-4 are mechanically connected to the
output group fader operating element 62 (FIG. 4B), and the output group OG1 to OG4 are
operated by the operation of the operating element 62. Volume level is adjusted.
[0018]
The signals of the output groups OG1 to OG4 are added by the adder 92 and supplied to the
output master volume level adjuster 94. The output master volume level adjuster 94 is
mechanically connected to the output master fader operating element 74 (FIG. 4C), and the
operation of the operating element 74 adjusts the volume level of the final output.
[0019]
The signal of each input channel before volume level adjustment is supplied to the cue bus line
100 through the channel cue lines 102-1 to 102-n. In the channel cue lines 102-1 to 102-n,
switches 104-1 to 104-n which are turned on and off by the operation of the input channel cue
output instruction operation element 54 (FIG. 4 (a)) are inserted. The input signal of the channel
for which the cue output is instructed by the operation element 54 is led to the cue bus line 100.
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[0020]
The signals after the volume level adjustment of the respective output channels are supplied to
the cue bus line 100 through the output group cue lines 106-1 to 106-4. In the output group
queue lines 106-1 to 106-4, switches 108-1 to 108-4 which are turned on and off by the
operation of the output group queue output instruction operation element 64 (FIG. 4B) are
inserted. The signal of the output group for which cue output is instructed by the operation
element 64 is led to the cue bus line 100.
[0021]
Further, the signals of the respective input channels after the volume level adjustment are
supplied to the cue bus line 100 through the fader group cue lines 110-1 to 110-n and the
switches 112-1 to 112-n.
[0022]
The signal led to the cue bus line 100 is outputted from the cue output terminal 114 and
supplied to a headphone or a monitor speaker.
The input channel queue switch 104, the output group queue switch 108, and the fader group
queue switch 112 are the ones that were last turned on by a separate switch control means (not
shown) so that they are not simultaneously turned on. Control to be effective
[0023]
The fader group volume level adjusters 116-1 to 116-4 are mechanically connected to the fader
group fader operator 68 (FIG. 4B), and the fader group volume level adjusters 116-1 to 116-4
correspond to the operation amount of the operator 68. A signal is output and commonly led to
the switch circuits 118-1 to 118-4 of each input channel. Switches 120-1 to 120-4 are switches
that are turned on and off by the operation of the fader group queue output instruction operation
element 70 (FIG. 4B), and the on and off information is transmitted from the switch circuit 118 of
each input channel. 1 to 118-4.
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[0024]
The switch circuits 118-1 to 118-4 respectively include dual switches 122-1a and b to 122-4a
and b for each of the fader groups FG1 to FG4. The dual switches 122-1a, b to 122-4a, b are
turned on and off in conjunction with the corresponding fader group of the fader group
assignment operators 52 (FIG. 4A). As a result, the volume level adjustment information of the
fader group is output from the contact a side of the turned on switch, and the cue output
instruction information is output from the contact b side.
[0025]
The volume level adjustment information of the fader group is summarized by the adders 124-1
to 124-n for each of the input channels 1 to n, and is supplied to the input volume level adjusters
80-1 to 80-n. The channel fader operating element 48 (FIG. 4A) is motor driven to control the
volume level adjustment amount. Further, the cue output instruction information of the fader
group is put together by the OR circuits 126-1 to 126-n for each input channel and used for on /
off control of the fader group queue switches 112-1 to 112-n. .
[0026]
According to the above configuration, when the output channel assignment operator 50 is
operated in the input module 42, the bus assigners 82-1 to 82-n realize the assignment status to
the corresponding output channel. Further, when the fader group assignment operator 52 is
operated, the switch circuits 118-1 to 118-n realize the corresponding fader group assignment
state.
[0027]
When the channel fader control 48 is operated in this state, the input volume level adjusters 801 to 80-n individually adjust the volume levels of the input channels 1 to n. In addition, when the
input channel cue output instruction operator 54 of an arbitrary input channel is operated, the
corresponding input channel among the cue switches 104-1 to 104-n is turned on, and the input
before the volume adjustment of that channel is performed. A signal is directed to cue output
terminal 114.
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[0028]
When the output group fader control 62 is operated in the group master module 44, the output
group volume level adjusters 90-1 to 90-4 individually adjust the volume levels of the output
channels. In addition, when the output group cue output instruction operation element 64 of any
output channel is operated, the corresponding output channel among the cue switches 108-1 to
108-n is turned on, and the volume of the output channel is adjusted. An output signal is led to
the cue output terminal 114.
[0029]
In the group master module 44, when the fader group fader operation element 68 is operated,
the input channels assigned to the corresponding fader group among the input volume level
adjusters 80-1 to 80-n are commonly adjusted Be done. Then, when the fader group cue output
instruction operation element 70 of any fader group is turned on, the one of the input channels
assigned to this fader group among the cue switches 112-1 to 112-n is turned on, and the input
channel The signal after the input volume level adjustment is led to the cue output terminal 114.
In this manner, the audio signal of the input channel assigned to the fader group including the
volume balance can be inspected and listened only by inputting the cue output instruction
operator 70 of an arbitrary fader group.
[0030]
In the above embodiment, the input volume level adjusters 80-1 to -80-n combine the volume
adjustment with the channel fader and the volume adjustment with the fader group, but the input
volume level adjustment with the channel fader and the fader group It is also possible to provide
separate devices and insert them in series on the channel input lines. In that case, the volume
adjuster by the fader group can be configured as a VCA, a digital volume, or the like.
[0031]
In the above embodiment, the fader group cue output takeout position is immediately after the
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input volume level adjusters 80-1 to 80-n in each input channel, but the present invention is not
limited to this position. For example, in the field of PA (Public Address), considering that many
are mixed as a stereo signal, as shown in FIG. 5, a buffer amplifier 130 disposed at the output
side of a channel fader (input volume level adjuster) 80. The cue output to the left and right cue
bus 100 can also be taken from the position after the pan pot 132.
[0032]
In the above embodiment, the fader control 68 for the fader group is provided independently, but
any one of the channel fader controls 48 in the input channel in which the fader group is
combined is used (differently used by switching) ) Can also.
[0033]
As described above, according to the present invention, when the fader group for outputting the
cue signal is instructed by the fader group cue output instructing operation means, the fader
group cue output control means is instructed Since the volume level adjusted signal of the input
channel assigned to the fader group is led to the cue signal output line, the audio signal of the
fader group including the volume balance is checked with a simple operation.
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