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DESCRIPTION JP2013150235

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DESCRIPTION JP2013150235
Abstract [Problem] To be able to easily set parameters when recording. [Solution] When a
snapshot change is made, a set command of parameters set to be linked from the mixer 1 is
transmitted. The DAW that operates on the PC (DAW) 6 that receives this command corresponds
to each track of the project that is recording the snapshot-changed snapshot data parameter in
the parameter sent by the received command in real time Set as the parameter value of the
[Selected figure] Figure 1
Acoustic signal processing system
[0001]
The present invention relates to an audio signal processing system for recording an audio signal
output from a mixer in real time by an audio signal processor (DAW).
[0002]
In the past, PA (Public Addressing), which is a broadcasting facility that transmits audio
information to a large number of people in a facility or school, etc., and even large-scale venues
such as concert venues, etc. At the site of SR (Sound Reinforcement), which is a broadcasting
facility that transmits sounds and vocals, the microphone collects the sounds played by the
instruments and vocals with a microphone, mixes them, and sends them to a power amplifier or
various recording devices, or an effector There are used mixers that send to players who are
playing or playing.
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A conventional mixer includes an I / O unit including an input port to which an audio signal
collected by a microphone and an audio signal from a synthesizer or the like is input, and an
output port for outputting digital and analog audio signals, and a digital mixer It comprises an
audio signal processing unit that performs mixing processing and effect processing of audio
signals, and a console that adjusts various performances to be most appropriately expressed by
operating various panel operators. An amplifier is connected to the output port from which the
analog acoustic signal of the mixer is output, and a plurality of speakers installed in the hall or
the like are connected to the amplifier, and the acoustic signal amplified by the amplifier is
emitted from the speaker It is made to be done.
[0003]
In the conventional PA / SR field, MTR (Multi Trak Recorder) is used to record the acoustic signal
of each channel output from the mixer on separate tracks. This allows you to adjust the volume
and pan of each instrument sound and vocal such as drum, bass, guitar, piano etc. recorded
separately at the time of music production, apply effects to vocals, and apply different effects to
each instrument can do. In this way, music can be produced by finely adjusting the sound quality
of each audio signal after recording. By the way, in an acoustic signal processing apparatus using
a general-purpose computer, it is known to perform acoustic processing work such as recording,
editing and mixing of performance data by digital signal processing. Such an audio signal
processing apparatus is realized by installing an application program called "DAW software" in a
computer, and is called a digital audio workstation (DAW). Due to advances in DAW functions
and the possibility of real-time recording, and because the computers on which DAWs operate
are highly portable, in place of MTR, DAW is used in the field of PA / SR to use for each channel
of the mixer Sound signals are being recorded in real time.
[0004]
By the way, PA / SR systems and recording systems are often designed and operated
independently, so setting and operation are performed individually in each system. In this case,
in the conventional DAW, track configuration information is stored as a template, and a new
project is started in advance from the template included in the program, thereby saving the
trouble of setting the track configuration from the beginning for each project. Is known (see NonPatent Document 1). Also, even after connecting the mixer and the DAW, they are individually
controlled. For example, parameter change on the mixer side and parameter change on the DAW
side are basically operated independently. However, it is possible to individually change the
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parameter values of the DAW software from the external controller, for example, parameters for
each channel such as playback, stop, level, Mute and the like.
[0005]
In the conventional DAW, when the project file including the track data, the specific information
of the external device set for use, and the parameters of the external device is read, the music
device connected to the communication network is selected. By associating the detected and
detected external device with the external device that has been set for use at the time of saving
the project file, and transferring the parameters stored in the parameter storage unit to the
external device that can be associated, It is contemplated to synchronize parameters between the
external device and the parameter storage means. As a result, the parameters can be
synchronized between the external device and the parameter storage means, and the music
function at the time of storage can be restored for the existing music devices that could be
associated (see Patent Document 1). .
[0006]
Steinberg Media Technologies GmbH CUBASE LE5 Operation Manual, P. 9-12, [online], [Search
on November 3, 2011], Internet
<http://www.zoom.co.jp/archive/Japanese_Manual/CubaseLE5_Operation_Manual_jp. pdf>
[0007]
JP 2007-293312 A
[0008]
When real-time recording the audio signal of each channel of the mixer using the DAW, the
recording engineer on the DAW side monitors the signal of the Master track to which the signal
of each track of the DAW is sent.
In the Master track, the signals of the individual tracks sent are mixed to become a signal called
rough mix.
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That is, the recording engineer on the DAW side is monitoring the rough mix. In this case, when
sending a signal from each track, the Mute parameter indicating mute on / off, the Fader
parameter indicating the level, and the Pan parameter indicating the localization of sound
become effective. However, these parameters only affect the signal sent from each track to the
master track, and have no effect on the recording status of each track itself. For this reason, since
recording engineers set parameter values for all tracks, there is a problem that it is very
troublesome to operate many track parameters in accordance with the progress of the event. The
SUMMARY OF THE INVENTION An object of the present invention is to provide an acoustic
signal processing system capable of easily setting the parameters of each track.
[0009]
In order to achieve the above object, according to an acoustic signal processing system of the
present invention, an acoustic signal processing apparatus connected to the mixer and having a
recording function and having acoustic signals of one or more channels output from the mixer is
real time recorded An acoustic signal processing system, wherein when a snapshot change is
performed in the mixer, a command for setting parameter values of parameters instructed from
the mixer is transmitted, and the acoustic signal processing apparatus that has received the
command is: The parameter value of the snapshot-changed snapshot data in the indicated
parameter sent by the received command is indicated on each track of the project recording the
acoustic signal of one or more channels in real time parameter It is the most important feature
that so as to set as a parameter value for the parameter corresponding to the coater.
[0010]
According to the present invention, when a snapshot change is performed in the mixer, a
command to change parameter values is transmitted from the mixer, and the acoustic signal
processing device that has received the command receives the instructed parameter sent by the
received command. The parameter values of the snapshot-changed snapshot data in are set as
parameter values of parameters corresponding to designated parameters of each track of the
project recording the acoustic signal of one or more channels in real time, You can easily set the
parameters of each track during real-time recording.
[0011]
It is a block diagram showing the composition of the sound signal processing system of the
example of the present invention.
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It is a figure which shows the structure of the sound signal processing system of the other
Example of this invention.
It is a block diagram which shows the hardware constitutions of the mixer which comprises the
acoustic signal processing system concerning this invention. It is a functional block diagram
equivalently showing a processing algorithm of a mixer which constitutes an acoustic signal
processing system concerning the present invention. It is a circuit block diagram which shows
the structure of the input channel in the mixer which comprises the acoustic signal processing
system concerning this invention, and an output channel. It is a figure which shows the memory
image of the channel structure information of the mixer which comprises the acoustic signal
processing system concerning this invention. It is a figure which shows the memory image of the
channel structure information of DAW which comprises the acoustic signal processing system
concerning this invention. It is a figure which shows the data structure of the snapshot data in
the mixer which comprises the acoustic signal processing system concerning this invention. It is
a flowchart of the snapshot recall process performed with the mixer which comprises the
acoustic signal processing system concerning this invention. It is a figure which shows the
snapshot table in the mixer which comprises the acoustic signal processing system concerning
this invention. It is a figure which shows the parameter setting window which sets the parameter
linked in the mixer which comprises the acoustic signal processing system concerning this
invention. It is a figure which shows the DAW mixer window displayed on the acoustic signal
processing apparatus which comprises the acoustic signal processing system concerning this
invention.
[0012]
A block diagram showing the configuration of an acoustic signal processing system according to
an embodiment of the present invention is shown in FIG. The acoustic signal processing system
of the present invention shown in FIG. 1 is composed of a PA / SR system and a recording system
connected to the PA / SR system. The PA / SR system includes a mixer 1 to which analog sound
signals from a plurality of microphones 3a,..., 3h installed in a hall etc. and digital sound signals
from a synthesizer 2 are input, and mixer 1 An amplifier 4 for amplifying the mixed audio signal
to be output, and a plurality of speakers 5a,..., 5k for emitting the amplified audio signal output
from the amplifier 4 are provided. Further, the recording system is constituted by a personal
computer (PC) 6 in which DAW software is installed and the DAW operates to be an acoustic
signal processing device.
[0013]
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The mixer 1 includes a plurality of input channels that are input signal sequences, a bus that
mixes audio signals from the input channels, and an output channel that is an output sequence
that outputs the mixed audio signals. Each input channel controls the frequency characteristic
and mixing level of the input audio signal and outputs it to each mixing bus, and each mixing bus
mixes the input audio signal and outputs it to the corresponding output channel. The PC (DAW) 6
can assign the acoustic signal of each input channel output from the mixer 1 to each track in the
project and perform real-time recording. The audio signal output from mixer 1 to PC (DAW) 6
during real-time recording is a direct out signal where the audio signal at a predetermined
location of the input channel is output directly from the output port, or of the fader for adjusting
the level of the input channel It is considered as the post-fader signal immediately after. The
acoustic signal output from the mixer 1 can be set in the mixer 1.
[0014]
The configuration of an acoustic signal processing system according to another embodiment of
the present invention is shown in FIG. Another audio signal processing system according to the
present invention shown in FIG. 2 includes an audio network 7 such as Ethernet (registered
trademark), and the audio network 7 includes an AD / DA unit 1a, a signal processing unit (DSP
unit) 1b and a console. The unit 1c and the PC (DAW) 6 are connected. Further, a PC (DAW) 6
which is an audio signal processing device is connected to the audio network 7. The AD / DA unit
1a is a physical input port which is an input terminal to which a microphone is connected, a
physical output port which is an output terminal to which an amplifier or the like is connected,
and a communication I connected to the audio network 7. It has / O. Furthermore, an AD
converter that converts a plurality of analog signals input to the analog input port into a digital
signal and outputs the digital signal from the input port, and converts a plurality of digital output
signals supplied to the analog output port unit to an analog output signal And a DA converter for
outputting from the analog output port. The DSP unit 1 b is configured by using a large number
of DSPs (Digital Signal Processors), performs mixing processing, effect processing, and the like,
and includes communication I / O connected to the audio network 7.
[0015]
The console unit 1c has a console panel provided with a plurality of motorized faders for
adjusting the output level of the input channel to the mixing bus, a large number of operators for
operating various parameters, and a communication I / O connected to the audio network 7. It is
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done. The operator who operates the console unit 1c adjusts the volume and tone of the musical
performance sound of the instrument and the audio signals of the vocals to the state considered
to be most representative of the performance by operating the motorized faders and various
operation elements. doing. The PC (DAW) 6 is an audio signal processing apparatus in which
DAW software is installed and the DAW is operating, includes communication I / O connected to
the audio network 7, and records or reproduces an audio signal, or applies an effect Audio signal
processing functions such as mixing and the like are realized. By logically connecting the AD / DA
unit 1a, the DSP unit 1b, and the console unit 1c through the audio network 7, a mixer equivalent
to the mixer 1 shown in FIG. 1 is realized. When performing real-time recording of the acoustic
signal of each channel in the realized mixer with a DAW operating on a PC (DAW) 6, the PC
(DAW) 6 is logically connected to the mixer by an audio network 7 Therefore, the DAW can be
logically connected to an arbitrary position of the mixer configured by the AD / DA unit 1a, the
DSP unit 1b, and the console unit 1c, so that a signal at an arbitrary position can be taken out.
That is, in the other audio signal processing system described above, it is possible to set the
direct out signal and the post fader signal etc. of the input channel on the side of the PC (DAW) 6
and record it in the DAW.
[0016]
When recording the audio signal of each channel output from the mixer in the audio signal
processing system shown in FIGS. 1 and 2, the DAW operating on the PC (DAW) 6 creates a
project and records it in the created project Do. In this project, create as many tracks as the
number of mixer channels, and assign each channel to each track. In this case, the channel
settings of the mixer and the track settings of the DAW are perfectly matched. That is, channel
configuration information such as channel parameter type and the like and track configuration
information such as track parameter type are the same.
[0017]
Here, a block diagram showing a hardware configuration of the mixer 1 shown in FIG. 1 is shown
in FIG. The hardware configuration of the mixer realized by the other audio signal processing
system shown in FIG. 2 is also equivalent to the hardware configuration shown in FIG. In the
mixer 1 shown in FIG. 3, a CPU (Central Processing Unit) 10 executes a management program
(OS: Operating System), and controls the overall operation of the mixer 1 on the OS. The mixer 1
includes a non-volatile ROM (Read Only Member) 11 in which operation software such as a
control program executed by the CPU 10 is stored, and a RAM (Random Access Memory) 12 in
which a work area of the CPU 10 and various data are stored. Is equipped. By executing the
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control program, the CPU 10 performs acoustic signal processing on the plurality of inputted
acoustic signals by the DSP 20 to perform mixing processing. Note that by making the ROM 11 a
rewritable ROM such as a flash memory, it is possible to rewrite the operating software, and it is
possible to easily upgrade the version of the operating software. The DSP 20 adjusts and mixes
the volume level and frequency characteristics of the input audio signal based on the set
parameters under the control of the CPU 10, and controls the acoustic characteristics such as
volume, pan, and effects based on the parameters. Sound signal processing is performed. The
effector (EFX) 19 adds effects such as reverb, echo and chorus to the mixed audio signal under
the control of the CPU 10.
[0018]
The display IF 13 is a display interface that causes the display unit 14 such as a liquid crystal
display to display various screens related to acoustic signal processing. The detection IF 15 scans
the operation elements 16 such as faders, knobs and switches provided on the console panel of
the mixer 1 to detect an operation on the operation elements 16, and the sound is detected based
on the detected operation signal. It is possible to edit and operate parameters used for signal
processing. The communication IF 17 is a communication interface for communicating with an
external device through the communication I / O 18, and is an interface for a network such as
Ethernet (registered trademark). The CPU 10, the ROM 11, the RAM 12, the display IF 13, the
detection IF 15, the communication IF 17, the EFX 19, and the DSP 20 mutually exchange data
via the communication bus 21.
[0019]
The EFX 19 and the DSP 20 exchange data with the AD 22, the DA 23, and the DD 24
constituting an input / output unit via the audio bus 25. The AD 22 has one or more physical
input ports that are input terminals to which analog audio signals are input, and the analog audio
signals input to the input ports of the AD 22 are converted into digital audio signals to be
transmitted to a voice bus. Sent to 25. The DA 23 has one or more physical output ports which
are output terminals for outputting mixed mixed signals to the outside, and the digital audio
signals received via the audio bus 25 at the DA 23 are converted into analog audio signals. And
output from the output port, and output from the speaker disposed at the hall or stage connected
to the output port. The DD 24 is one or more physical input ports that are input terminals to
which digital audio signals are input, and one or more physical output ports that are output
terminals that output digital audio signals mixed externally. A digital audio signal input to the
input port at DD 24 is sent to the audio bus 25 and a digital audio signal received via the audio
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bus 25 is output from the output port and connected to the output port Are supplied to digital
recorders, etc. The digital acoustic signal sent from the AD 22 and DD 24 to the voice bus 25 is
received by the DSP 20 and subjected to the above-mentioned digital signal processing. Also, the
mixed digital audio signal sent from the DSP 20 to the audio bus 25 is received by the DA 23 or
DD 24.
[0020]
Next, a functional block diagram equivalently showing the processing algorithm of the mixer 1 is
shown in FIG. In the following description, a channel is denoted as ch. In FIG. 4, digital audio
signals supplied via a plurality of input ports 30 are input to an input patch 31. The input port
30 is a physical input terminal provided to the AD 22 and the DD 24. In the input patch 31, each
logical input channel provided in the input channel unit 32 in which each of a plurality of
physical input ports that are input sources of audio signals is Nch (N is an integer of 1 or more:
96 channels, for example) (Input Channel) 32-1, 32-2, 32-3,..., 32-N are selectively patched
(connected). In this case, the input port can be patched to a plurality of input channels, but only
one input port can be patched to the input channel. The audio signals In.1, In.2, In.3,..., In.N from
the input port 30 patched by the input patch 31 are respectively supplied to the respective input
channels 32-1 to 32-N. . In each of the input channels 32-1 to 32-N, acoustic characteristics and
the like of the audio signals In.1, In.2, In.3,..., In.N input to the respective input channels are
adjusted. That is, each input ch signal input to each of the input ch 32-1 to 32-N in the input ch
unit 32 has the characteristic of the acoustic signal adjusted by the equalizer and the compressor
for each input ch and the transmission level is controlled. It is sent to a mix bus (Mix Bus) 33 (M
is an integer of 1 or more) and a stereo Cue Bus 34 for L and R. In this case, the N input ch signal
output from the input ch unit 32 is selectively output to one or more of the M mixing buses 33.
[0021]
In the mixing bus 33, one or more input channel signals selectively input from any one of N input
channels are mixed in each of M buses, and a total of M mixed outputs are output. Be done. The
mixed output from each of the M mixing buses 33 is output to each output channel (Output
Channel) 35-1, 35-2, 35-3,... Output to M respectively. At each output ch 35-1 to 35-M, the
characteristics of the acoustic signal such as frequency balance are adjusted by the equalizer and
the compressor, and the output ch signals Mix.1, Mix.2, Mix.3, ..., Mix. The M output ch signals
Mix.1 to Mix. M is output to an output patch (Output Patch) 37. In addition, in the L and R Cue
bus 34, a cue / monitoring signal (Cue / Monitor) in which one or a plurality of input channel
signals input from N input channels are mixed is used. It is output to 36. The cue / monitor
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output (Cue / monitor) of which the characteristics of the acoustic signal such as frequency
balance are adjusted by the equalizer / compressor in the cue / monitor unit 36 is output to the
output patch 37.
[0022]
In the output patch 37, the M output ch signals Mix.1 to Mix. Either M or the cue / monitor
output from the cue / monitor unit 36 can be selectively patched (connected) to any of the
plurality of output ports 38, and each output port 38 is an output patch 37. A patched output
channel signal is supplied. At the output port 38, the digital output ch signal is converted into an
analog output signal, amplified by an amplifier connected to the patched output port 38, and
emitted from a plurality of speakers arranged in the hall. Further, the analog output signal from
the output port 38 is supplied to an in-ear monitor worn by a musician or the like on the stage,
or reproduced by a stage monitor speaker placed in the vicinity thereof. Also, the digital sound
signal output from the output port 38 patched by the output patch 37 can be supplied to the
recording system or DAT connected to the output port 38 for digital recording. Also, the cue /
monitor output is converted into an analog audio signal, and output from the monitor speaker
disposed in the operator room or the headphones worn by the operator via the output port 38
patched by the output patch 37 for the operator Will be able to listen. As described above, in the
output patch 37, the output channel which is a logical channel is selectively patched to the
output port which is a physical output terminal. Although not shown, direct output is realized by
patching predetermined positions of the input channels 32-1 to 32-N to the output port 38 by
the output patch 37.
[0023]
The input channels 32-1 to 32-N in the input channel unit 32 shown in FIG. 4 have the same
configuration, and the configuration of the input channels is shown in FIG. Show. One of the
input ports in the input patch 31 is to be patched to the input ch 32-i shown in FIG. 5A. The
input ch 32-i has an attenuator (Att) 41, a head amplifier (H / A) 42, a high pass filter (HPF) 43,
an equalizer (EQ) 44, a noise gate (Gate) 45, a compressor (Comp) 46, and a delay (Delay) 47, a
fader (Level) 48, and a pan (Pan) 49 are connected in cascade. The attenuator 41 adjusts the
amount of attenuation of the input digital sound signal, and the head amplifier 42 is an amplifier
that amplifies the input digital sound signal. The high-pass filter 43 is a filter that cuts the band
of the input digital audio signal lower than a specific frequency, and the equalizer 44 is an
equalizer that adjusts the frequency characteristics of the input digital audio signal, for example,
HI, MID HI, LOW MID, LOW The frequency characteristics of each of the four bands can be
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varied.
[0024]
The noise gate 45 is a noise gate for blocking noise, and when the level of the input digital audio
signal becomes lower than a reference value, the gain of the input digital audio signal is sharply
reduced to block noise. doing. The compressor 46 narrows the dynamic range of the input digital
audio signal to prevent the input digital audio signal from being saturated. The delay 47
performs time delay on the input digital sound signal so as to correct the distance between the
sound source and the microphone connected to the patched input port. The fader 48 is a level
varying means such as an electric fader that controls the level of output from the input channel
32-i to the mixing bus 33. The pan 49 is a two-mix bus set to stereo from the input channel 32-i.
Adjusts the left and right localization of the signal sent to 33. The digital audio signal output
from the input channel 32-i can be supplied to any of a plurality of mixing buses 33 and is also
supplied to the queue bus 34. The direct-out position that can be output from the mixer and sent
to the PC (DAW) 6 can be selected from immediately before the attenuator 41, immediately
before the HPF 43, immediately before the fader 48, or the like.
[0025]
Further, all the output channels 35-1 to 35-M in the output channel unit 35 shown in FIG. 4 have
the same configuration, and the configuration of the output channels is shown in FIG. Shown in).
The mixed output from the j-th line in the mixing bus 33 is input to the output ch 35-j shown in
FIG. 5 (b). The output ch 35-j is configured by cascading an equalizer (EQ) 51, a compressor
(Comp) 52, a fader (Level) 53, a balance (Bal) 54, a delay (Delay) 55, and an attenuator (Att) 56. .
The equalizer 51 is an equalizer that adjusts the frequency characteristics of the digital audio
signal to be output, and, for example, electrical characteristics for each band of six bands of HI,
MID HI, MID, LOW MID, LOW, and SUB MID. Can be variable. The compressor 52 narrows the
dynamic range of the output digital sound signal to prevent the output digital sound signal from
being saturated. The fader 53 is a level variable means such as an electric fader for controlling
the output level from the output channel 35-j to the output patch 37, and the balance 54 is the
left and right when the output channel 35-j is set to stereo. Adjust the volume balance of The
delay 55 performs time delaying of the digital audio signal to be output so as to perform distance
correction of the speaker, correction of localization, etc. The attenuator 56 attenuates the digital
audio signal to be output to the output patch 37 Adjust the amount.
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[0026]
Next, a memory image of channel configuration information of the mixer configured by the mixer
1 or the audio network 7 is shown in FIG. As shown in FIG. 6, channel configuration information
(Channel Setting) of the mixer is composed of channel configuration information on the input
channel (Input Channel) side and the output channel (Output Channel) side. Although FIG. 6
shows channel configuration information only on the input channel side, channel configuration
information on the output channel side also has the same configuration. Channel configuration
information on the input channel side includes Port information, Preference information, and
Parameter information. The port information is the configuration information of the input port
30, and the ID (identification information) of the I / O box having the physical input terminal, the
port number, the port name information, the setting information of the head amplifier (H / A
Setting) and so on. The preference information includes Ch number information indicating the
number of channels of the input channel, Ch Name information indicating the channel name of
each input channel, Ch color information indicating the display color of the input channel, Link
information of the stereo pair, etc. . Furthermore, the Parameter information is sent to Dynamics
parameters of the dynamics system such as the compressor (Comp) 46, EQ parameters of the
equalizer (EQ) 44, a mix bus (Mix Bus) 33 and L, R stereo cue bus (Cue Bus) 34. It consists of a
send level BUS Send parameter, a Fader (Level) 48 Fader parameter, a mute on / off Mute
parameter, and a Pan (Pan) 49 Pan parameter.
[0027]
On the other hand, FIG. 7 shows a memory image of track configuration information of the DAW
operated by the PC (DAW) 6. As shown in FIG. 7, the track configuration information (Track
Setting) of the DAW includes track configuration information on the input track (Input Track)
side and the output track (Output Track) side. Although FIG. 7 shows track configuration
information only on the input track side, track configuration information on the output track side
has a similar configuration. Track configuration information on the input track side includes
Preference information and Parameter information. The preference information includes Tr
number information indicating the number of tracks of the input track, Ch Name information
indicating the channel name of each input channel, Tr Color information indicating the display
color of the input channel, Link information of the stereo pair, etc. . In addition, Parameter
information includes Dynamics parameters of dynamics system, EQ parameters of equalizer, BUS
Send parameter of send level to mixing bus, Fader parameter of fader, Mute parameter of muting
on / off, Pan parameter of pan indicating left and right localization. And so on. Thus, the
information type of Preference information in the channel configuration information (Channel
Setting) of the mixer and the parameter type of Parameter information are the same as the
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information type of the Preference information in the track configuration information (Track
Setting) of the DAW and the parameter type of Parameter information And are matched.
[0028]
By the way, each signal processing section in the input channel 32-i and the output channel 35-i
of the mixer 1 is a parameter comprising parameters for signal processing set by operation
elements such as faders, knobs and switches provided on the panel. Perform signal processing
according to the set. That is, when the sound output from the mixer 1 is emitted, an acoustic
setting state corresponding to the parameter set is created. In the present invention, the setting
state of the created sound is referred to as a snapshot (Snapshot), and a parameter set for
realizing the snapshot is Snapshot data. The snapshot corresponds to a scene used in a
conventional mixer, and Snapshot data is also setting data for signal processing of the mixer 1.
By specifying a snapshot and performing a recall operation, Snapshot data of the specified
snapshot is read out, and the setting state of sound according to the Snapshot data is reproduced
by the mixer 1. As a result, it is possible to reproduce various snapshots from the meeting room,
the banquet room, the mini theater, and the multipurpose hall, which have been set once. Also,
prepare a snapshot according to the opening song, the first song, the second song, ..., and change
to the snapshot prepared for each song when each song is played. It can be changed to the
setting state of the sound according to each music.
[0029]
The data structure of this Snapshot data is shown in FIG. As shown in FIG. 8, Snapshot data of a
snapshot consists of a plurality of parameter sets, and each parameter set comprises parameters
of an input channel, parameters of an output channel, and the like. The parameters of the input
channels are composed of the parameters of the respective input channels for the number of
input channels set for channel 1 (ch. 1), channel 2 (ch. 2),. The parameters for one input channel
are: Dynamics parameters of dynamics system, EQ parameters of equalizer, BUS Send parameter
of send level to mixing bus, Fader parameter of fader, Mute parameter of mute on / off, pan
indicating left / right localization It consists of Pan parameters etc. Further, the parameters of the
output channels are composed of the parameters of the respective output channels
corresponding to the set number of output channels of channel 1 (ch. 1), channel 2 (ch. 2),. The
parameters of one output channel are composed of Dynamics parameters of dynamics system,
EQ parameters of equalizer, Fader parameter of fader, Mute parameter of mute on / off, etc.
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[0030]
FIG. 9 shows a flowchart of a snapshot recall process that is executed when performing a
snapshot change in the mixer shown in FIGS. 1 and 2 in the acoustic signal processing system of
the present invention. The snapshot recall process shown in FIG. 9 is started when a snapshot
change is detected in the mixer. When a snapshot is changed, for example, a snapshot change is
output each time the opening song, the first song, the second song,... Are started. When the
snapshot recall process is activated, the snapshot data specified in the event for recalling the
snapshot is read in step S10, and the parameter set of the snapshot read in step S11 is the
current memory on the RAM 12 Set to As a result, parameter values for signal processing such as
mixer faders, knobs, and switches are set to the parameter values of the read Snapshot, and the
designated sound setting state is established.
[0031]
Next, in step S12, setting information of a command to be transmitted to the PC (DAW) 6
regarding the parameter to be linked is acquired. The setting information on the linked
parameters can be set by the parameter setting window 60 shown in FIG. In the parameter
setting window 60, the Fader parameter of the fader 48, the mute on / off mute parameter, and
the Pan 49 Pan parameter can be linked by the mixer and the PC (DAW) 6. For parameters to be
linked, the radio button of "Enable" arranged next to the parameters is turned on, and for
parameters not to be linked, the radio button of "Disable" arranged side by side is turned on. In
the parameter setting window 60 shown in FIG. 11, the Fader parameter of the fader 48, the
mute parameter of mute on / off, and the “Enable” radio button of the Pan parameter of Pan
49 are both turned on to link these parameters. It is set as. Here, when the "Ok" button 60b at
the bottom of the screen is clicked, the setting is updated to the setting shown in the parameter
setting window 60, and when the "Cancel" button 60a at the bottom of the screen is clicked, the
setting state of the screen is cancelled. Be done.
[0032]
In the case of the setting state shown in the parameter setting window 60 of FIG. 11, in step S12,
setting information for sending a command for linking Fader, Mute, and Pan parameters is
acquired. And about the parameter set to link with DAW by the acquired setting information, the
set command of the parameter will be transmitted to DAW. The setting information set in the
parameter setting window 60 is held by the mixer side. When the process of step S12 is
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completed, it is determined whether the Fader parameter is linked (valid) or not in step S13
based on the acquired setting information. Here, if it is determined that the Fader parameter is to
be linked, the process branches to step S14, and a set command of the Fader parameter is
transmitted to the PC (DAW) 6. The set command of the Fader parameter to be transmitted
includes the Fader parameter value of each channel in the Snapshot data to be changed. In the
PC (DAW) 6 that has received the set command of the Fader parameter, the Fader parameter
value of each channel in the changed Snapshot data is set as the Fader parameter value of each
corresponding track in the DAW.
[0033]
If it is determined in step S13 that the Fader parameter is not to be linked, or if the process of
step S14 ends, the process proceeds to step S15, and the Mute parameter is linked in step S15
based on the acquired setting information (valid) It is judged whether or not. If it is determined
that the Mute parameter is to be linked, the process branches to step S16, and a set command for
the Mute parameter is transmitted to the PC (DAW) 6. The set command of the Mute parameter
to be transmitted includes the Mute on / off parameter value of each channel in the Snapshot
data to be changed. On the PC (DAW) 6 that receives this Mute parameter set command, the
Mute on / off parameter value of each channel in the changed Snapshot data is set as the Mute
on / off of the corresponding track in the DAW. . If it is determined in step S15 that the Mute
parameter is not to be linked, or if the process of step S16 is completed, the process proceeds to
step S17, and the Pan parameter is linked in step S17 based on the acquired setting information
(valid) It is judged whether or not. Here, if it is determined that the Pan parameter is to be linked,
the process branches to step S18, and a Pan parameter set command is transmitted to the PC
(DAW) 6. The set parameter of Pan parameter to be transmitted includes the parameter value of
Pan of each channel in the Snapshot data to be changed. In the PC (DAW) 6 that has received the
set command of the Pan parameter, the parameter value of Pan of each channel in the changed
Snapshot data is set as the parameter of the Pan parameter of the corresponding track in the
DAW. If it is determined in step S17 that the Pan parameter is not linked, or if the process of step
S18 ends, the snapshot recall process ends.
[0034]
In the snapshot recall process shown in FIG. 9, the parameter value of each channel in the
Snapshot data can be set as the parameter value of each track on the DAW side because of the
channel configuration information such as the parameter type of the channel on the mixer side
and the DAW side. This is possible because the track configuration information such as the track
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parameter type matches. Also, the snapshot recall process shown in FIG. 9 is activated and
executed by a snapshot change output at the timing when the opening song, the first song, the
second song,. A snapshot table for outputting a snapshot change is shown in FIG. As shown in
FIG. 10, the snapshot table has a snapshot number (No.). And the snapshot name. In the example
shown in FIG. 10, the snapshot name of the number 1 is "opening", the snapshot name of the
number 2 is "MC1", the snapshot name of the number 3 is "first", and the snapshot name of the
number 4 is The snapshot name is "second song". In the case of the snapshot table shown in FIG.
10, a snapshot change is output at the timing when the opening song, the MC1 song, the first
song, the second song,. A parameter set command regarding parameters to be linked is
transmitted from the mixer so that the DAW can receive it. As a result, when a snapshot change
is made, parameter values on the mixer side will be automatically set as to the parameters to be
linked to each track of the project being recorded in real time by the DAW.
[0035]
When the parameter value on the mixer side is set for the parameter to be linked, the display of
the target parameter of the DAW mixer window 70 which is the mixer screen of the DAW is
changed according to the set parameter value. Here, an example of the DAW mixer window 70 is
shown in FIG. The DAW mixer window 70 shown in FIG. 12 is displayed on the display of the PC
(DAW) 6, and a plurality of (for example, eight) track ch strips 71 and a master track ch strip
slightly spaced from the track ch strips 71. It has 73 and. Each track ch strip 71 is provided with
a pan 71a, a fader 71b, a mute button 71c, a solo button 71d, and an audition button 71e. Also,
in the track ch strip 71, there are a Level section 71f in which the parameter value set in the
Fader 71b is displayed, a track name section 72a in which the assigned track name is displayed,
and a track number section 72b in which the track number is displayed. It is provided.
[0036]
A track is assigned to each track ch strip 71 of the DAW mixer window 70, and in the example
shown in FIG. 12, eight tracks of track numbers 1, 2,... 8 are displayed as displayed in the track
number column 72b. It is assigned. In the track ch strip 71 to which the track of track number 1
is assigned, the track name is "Vocal", Fader 71b is set to 0.00 dB as indicated by the Level
section 71f, and localization is indicated by Pan71a. It is considered to be the center (C). Also, in
the track ch strip 71 to which the track of track number 2 is assigned, the track name is "Vo.Del",
Fader 71b is set to -2.00 dB as shown in the Level section 71f, and localization is Pan71a. As
shown, it is slightly left (L3). Further, in the track ch strip 71 to which the track of track number
3 is assigned, the track name is "Drums", Fader 71b is set to 0.00 dB as indicated by the Level
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section 71f, and localization is indicated by Pan71a. It is considered to be the center (C).
[0037]
Furthermore, in the track ch strip 71 to which the track of track number 4 is assigned, the track
name is "Gt." The Fader 71b is set to 0.00 dB as indicated by the Level unit 71f, and the
localization is set to the center (C) as indicated by Pan 71a. Furthermore, in the track ch strip 71
to which the track with the track number 5 is assigned, the track name is "Bass", the Fader 71b is
set to -10.00 dB as indicated by the Level section 71f, and the localization is indicated by
Pan71a. It is on the right (R5) as it is. Furthermore, in the track ch strip 71 to which the tracks of
the track numbers 6 to 8 are assigned, the track names are "Strings", "Synth", ". It is set to 00 dB,
and the localization is set to the center (C) as shown by Pan 71a. The master track of the DAW is
assigned to the master track ch strip 73. The signal of each track is sent to the master track and
mixed to be a signal called rough mix. Because the DAW monitors the signal of the Master track,
the recording engineer on the DAW side monitors the rough mix.
[0038]
In the present invention described above, the mixer and the DAW are connected, but the number
of tracks and track configuration information of the DAW of the project to be recorded in real
time are completely matched with the number of channels and channel configuration information
of the mixer . When an event is started using a mixer, the DAW side starts real-time recording on
all target tracks. In this case, recording may be started manually. Then, in accordance with the
snapshot change on the mixer side, the mixer side sends a parameter set command for changing
the parameter value to the DAW software. The parameter value to be sent at this time is a part of
the snapshot data to be changed, and is taken as the parameter value of the parameter to be
linked. Then, when receiving the parameter set command, the DAW sets the parameter value
corresponding to the received parameter set command. In the present invention, parameter
values are automatically set on the DAW side only by performing snapshot changes on the mixer
side, so parameter values of many tracks can be automatically set according to the progress of an
event. It will be possible.
[0039]
Reference Signs List 1 mixer, 1a AD / DA unit, 1b DSP unit, 1c console unit, 2 synthesizer, 3a to
3h microphone, 4 amplifier, 5a to 5k speaker, 6 PC (DAW), 7 audio network, 10 CPU, 11 ROM,
12 RAM, 13 display IFs, 14 displays, 15 detection IFs, 16 operators, 17 communication IFs, 18
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communication I / O, 19 EFX, 20 DSPs, 21 communication buses, 22 AD, 23 DA, 24 DD, 25 voice
buses , 30 input ports, 31 input patches, 32 input channel units, 32-1 to 32-i to 32-N input
channels, 33 mixed buses, 34 cue buses, 35 output channel units, 35-1 to 35-M output channels ,
36 monitor units, 37 output patches, 38 output ports, 41 attenuators, 42 head amplifiers, 4 3
high pass filter, 44 equalizer, 45 noise gate, 46 compressor, 47 delay, 48 fader, 49 pan, 51
equalizer, 52 compressor, 53 fader, 54 balance, 55 delay, 56 attenuator, 60 parameter setting
window, 60a Cancel button, 60b Ok button, 70 DAW mixer window, 71 track ch strip, 71a pan,
71b fader, 71c mute button, 71d solo button, 71e audition button, 71f Level section, 72a track
name section, 72b track number section, 73 master track ch strip
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