l___.
US008031886B2
(12) Ulllted States Patent
(10) Patent N0.:
Kageyama et al.
(54)
(75)
(45) Date of Patent:
AUDIO SIGNAL PROCESSING SYSTEM
.
-
Inventors‘
Oct. 4, 2011
6,839,441 B1 *
1/2005 Powers et a1. ............... .. 381/119
7,107,110 B2 *
9/2006
Fay et al. ...................... .. 700/94
Yamamoto et al.
.
2005/0038922 A1
2/2005
UP)’
2006/0015198 A1
1/2006 Okabayashi et a1.
Atsushi Fukada, Hamamatsu (JP)
FOREIGN PATENT DOCUMENTS
_
_
JP
(73) Ass1gnee: Yamaha Corporation, Hamamatsu-sh1
2005-64880
(JP)
( * ) Notice:
US 8,031,886 B2
3/2005
OTHER PUBLICATIONS
Subject to any disclaimer, the term of this
ig?gagieagit 11:22:: malled Jul' 22’ 2010’ for EPApphCanon NO'
Patent 15 extended or adJusted under 35
Yamaha. (2003). Digital Mixing Studio 01X OWner’s Manual,
U'S'C' 15403) by 955 days‘
located
at
http://WWW2.yamaha.co.jp/manual/pdf/emi/english/
synth/0lxieniom.pdf>, last visited Jun. 21, 2010, 156 pages.
(21)
( )
22
Appl- N05 11/963,483
01X Supplementary Manual Using the OX1 With Cubase SX “3”,
1 d
Yamaha Corporation, 2005.
Fi e :
Dec. 21 2007
a
(65)
* cited by examiner
Prior Publication Data
Primary Examiner * Douglas MenZ
Us 2008/0175414 A1
(30)
Jul‘ 24’ 2008
(74) Attorney, Agent, or Firm * Morrison & Foerster LLP
Foreign Application Priority Data
Dec. 27, 2006
(57)
(JP) ............................... .. 2006-351377
ABSTRACT
In a mixer system having a digital mixer having functions Of
processing an audio signal in an input channel and outputting
the signal Via an ST bus, and a PC executing a DAW appli
cation realizing a function of plural tracks to record Waveform
(51)
Int. C1.
H04B 1/00
(52)
(58)
US. Cl. ......................... .. 381/119; 381/118; 700/94
Field of Classi?cation Search ................ .. 381/119,
data, a WET button Corresponding to the input Channel is
Provided to the digital mixer to Select a DRY mode for input
381/118; 700/94
See application ?le for Complete Search history
ting signal Which is inputted from outside the device to the
input channel, to the ST bus Without sending the signal to the
(56)
(2006.01)
DAW application, or a WET mode for inputting signal Which
are inputted from outside the device to input channel, to the
ST bus after sending the signal to the DAW application for
processing and being sent back to the digital mixer, in
References Cited
US. PATENT DOCUMENTS
6,061,458 A *
5/2000 East et a1, ,,,,,,,,,,,,,,,,,,, ,, 381/119
6,374,148 B1 *
4/2002 Dharmarajan et al. ....... .. 700/94
6,795,560 B2 *
9/2004 Hamamatsu ................ .. 381/119
response to a Pressing Ofthe WET button
13 Claims, 12 Drawing Sheets
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Sheet 1 0f 12
F I G.
US 8,031,886 B2
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0a. 4, 2011
2'05
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US 8,031,886 B2
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0a. 4, 2011
Sheet 4 0f 12
F I G.
WAVEFORM DATA SOURCE
IN DIGITAL MIXER
(CHANNEL 0R BUS)
INPUT CHANNEL (1-12)
ST (L, R)
REC (L, R)
F I G.
WAVEFORM DATA SOURCE
IN DAW APPLICATION
4
OUTPUT PORT
PI-PIZ
P15. P16
P13, P14
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OUTPUT PORT
(BUS)
ST (L, R)
5.1ch (L, R)
5.1ch (C, LFE)
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CHANNEL (1-12)
P1,P2
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US 8,031,886 B2
US. Patent
0a. 4, 2011
Sheet 5 0f 12
F I G.
US 8,031,886 B2
6
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0a. 4, 2011
Sheet 7 0f 12
FIG.
I
START
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81 1
OBTAIN ID OF NEW
PHYS I CALLY
CONFECTIONED DEVICE
S12
CONNECT I ON
PREPARATION PROCESS
S13
ANY OTHER
CC I CALLY CONNECTED
TEMPLATE FOR NEWLY
CONNECTED
DEVICE’?
S15
S16
CONNECT I ON PROCESS
ACCORDING TO TEMPLATE
SET DEVICE ID REGISTER cm
T0 In 0F LOGICALLY
CONNECTED DEVICE
(
END
US 8,031,886 B2
US. Patent
0a. 4, 2011
Sheet 8 0f 12
F I G.
US 8,031,886 B2
1 O
PROCESS BY DAW APPLICATION (PC)
PROCESS BY DIGITAL MIXER
a-» ( START )
SEND coNFIRNATIoN SIGNAL
_______ "
T0 DEVICE CURRENTLY
CONNECTED TO owN DEVICE
S31
/,/
523
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SEND RESPONSE
$32
wA|T FOR RESPONSE A",
TURN ON CONNECTION
CONFIRMATION LAMP
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T0 "0"
SET coNNEcTIoN
CONFIRMATION NcE
TO "I"
SET coNNEcTIoN
CONFIRMATION FLAG
DGE TO I
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SET COUNTER CT AT
THRESHOLD VALUE AT
END
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TURN OFF coNNEcTIoN
CONFIRMATION LAMP
Y
CT<—CT—1
845
SET "0" T0 DCE
S43
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N
846
RELEASE wET FOR
ALL CHANNELS
END
US. Patent
Oct. 4, 2011
Sheet 9 0f 12
FIG.
PROCESS BY DIGITAL MIXER
352
US 8,031,886 B2
12
PROCESS BY DAW APPLICATION (PC)
Y
SEND ST MIX COMMAND
TO DAW APPLICATION IN PC
SWITCH INPUTS OF ALL
CHANNELS TO ANALOGUE
(LOCAL) AND LIGHT LAMP
S53
S54
INDICATING|"ANALOGUE"
LIGHT ONLY LAMP 0F
SET OUTPUT DESTINATIONS
STMIX BUTTON AMONG
0F AL%0Ag$|gU;RAcKS
WORK MODE BUTTONS
END
FIG.
PROCESS BY DIGITAL MIXER
13
PROCESS BY DAW APPLICATION (PC)
,1
1' S81
SEND
872 HWMIX COMMAND
Y
T0
DAW APPLICATION IN PC
>
873
1'
$83
SWITCH INPUTS OF ALL
CHANNELD TO DIGITAL
(AUDIO LAN) AND LIGHT
LAMP INDICATING "DIGITAL"
I
COUNT NUMBER OF
EXISTING CHANNEL BUSES
(MEMORY AS "X")
S84
SET OUTPUT DESTINATIONS OF I TO
LIGHT ONLY LAMP OF
HWMIX BUTTON AMONG
WORK MODE BUTTONS
X-TH AUDIO TRACK TO I TO X-TH
CHANNEL BUSES, AND OUTPUT
DESTINATIONS OF (X + 1) —T|-| AND
LARGER NUMBER OF AUDIO TRACKS
(i
T0 X-TH CHANNEL BUS
4
END
US. Patent
0a. 4, 2011
Sheet 10 0f 12
FIG.
US 8,031,886 B2
‘I4
WS(I) : PARAMETER INDICATING WET STATUS
OF i-TH INPUT CHANNEL
0: DRY, 1: HOLD, 2: WET
I
WET (I) START PROCESS
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SEND DRY(i)
COMMAND TO DAW
APPLICATION IN PC
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TURN OFF LAMP OF
wET BUTTON IN i-TH
INPUT CHANNEL
l
S106
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BLINK LAMP 0F wET
BUTTON IN i-TH
INPUT CHANNEL
LIGHTS LAMP OF wET
BUTTON IN i-TH
INPUT CHANNEL
I
1
:
I:
I
I
II
US. Patent
0a. 4, 2011
Sheet 11 0f 12
FIG.
US 8,031,886 B2
15
m
3111
N
S112
Y
SEARCH AUDIO TRACK WHOSE
INPUT SOURCE IS i-TH INPUT
CHANNEL OF DIGITAL MIXER
S114
v
TURN ON MONITOR
OUTPUT OF TRACK TO
'
S116
BE CONTROLLED
N
S115
SEND "HOLD" AS A RESPONSE
TO RECEIVED WET (i)
COMMAND
SEND "WET" AS A RESPONSE
TO RECEIVED WET (i)
COMMAND
‘4
I
END
FIG.16
S121
MCE=I?
S122
Y
SEARCH AUDIO TRACK WHOSE INPUT
SOURCE IS i-TH INPUT
CHANNEL OF DIGITAL MIXER
APPROPRIATE
TRACK? AND THE TRACK IS
IN RECORDING STANDBY
S124
TURN OFF MONITOR OUTPUT
OF TRACK TO BE CONTROLLED
END
US. Patent
0a. 4, 2011
Sheet 12 0f 12
FIG.
S131
S133
US 8,031,886 B2
17
INVERSE RECORDING STANDBY
STATE OF j-TH TRACK AND
CHANGE BUTTON INDICATION
DISTINGUISH INPUT CHANNEL
OF DIGITAL MIXER BEING
INPUT SOURCE OF j-TH TRACK
(MEMORY AS i-TH CHANNEL)
|
S134
SEND WSC (i) COMMAND
TO DIGI TA L MIXER
END
FIG.
S142
ws(i)
18
Y
IWET(i) START PROCESS
I_________-________
END
US 8,031,886 B2
1
2
AUDIO SIGNAL PROCESSING SYSTEM
HoWever, especially in an operation for sWitching sounds
to be monitored, an easy and quick sWitching is important and
BACKGROUND OF THE INVENTION
an improvement in its operability has been desired.
The invention is made to solve the above problem and has
an object to improve the operability of an audio signal pro
1. Field of the Invention
The invention relates to an audio signal processing system
Wherein an audio signal processing device processing and
cessing system established by connecting an audio signal
processing device and a computer.
outputting an input audio signal operates in cooperation With
a computer executing an application program realiZing an
To attain the above object, the present invention provides
an audio signal processing system including: an audio signal
audio signal processing function.
processing device that processes one or more inputted audio
2. Description of the Related Art
Conventionally, an audio signal processing device such as
signals in one or more channels, mixes the processed signals
in one or more buses, and outputs the signals mixed in the
a digital mixer, having specialiZed hardWare for audio signals
buses; and a computer that sends and receives plural audio
signals to and from the audio signal processing device via a
communication path and executes an application program
Which realiZes a function of plural tracks, each of Which
inputs an audio signal selected from the received audio sig
are knoWn as a device for processing and outputting input
audio signals. Further, a processing function such as record
ing, reproducing, effect addition, or mixing of audio signals is
realiZed by executing an application program called a DAW
nals, records the input signal, plays back the recorded signal,
(Digital Audio Workstation) in a general-purpose computer
such as a PC (personal computer).
20
and outputs one of the signal inputted to the track and the
played back signal to be sent to the audio signal processing
device. The audio signal processing device sends an audio
signal inputted to each channel of the audio signal processing
device to the computer via the communication path, Wherein
25
the audio signal processing device includes a selection con
trol that accepts a ?rst selecting operation of a user, corre
sponding to any one of the channels, and selects one of a dry
Further, the above described audio signal processing
device and the computer are connected to each other to con
stitute an audio signal processing system and those devices
transmit and receive data to and from each other and operate
in cooperation.
HoWever, in such a case, providing a physical communi
cation path betWeen the audio signal processing device and
the computer is not enough and it is required to set a logical
signal of the channel, Which is an audio signal processed in
connection, in Which, for example, it is determined Which
channel(ch)’s output data in the audio signal processing
device is to be inputted to Which channel (or track) of the
computer. Such a logical connection can be automatically
performed by a driver installed in the computer.
Such a technique is disclosed in, for example, folloWing
the channel, and a Wet signal of the channel, Which is an audio
Document 1.
Document 1:
30
processing device via the communication path after pro
cessed in the computer, to be supplied to the bus in response
to the ?rst selecting operation. When the dry signal is selected
35
Japanese publication of unexamined patent applications No.
2005-64880
In addition to the above, regarding a usage of an audio
signal processing device connected to a computer, a tech
nique for a remote control of the DAW operation in the
40
trol is used to instruct the DAW to start or stop recording or to
45
Document 2.
Document 2:
signal of the channel, to the audio signal processing device via
the communication path to supply the returned signal to the
“01x Supplemental Manual,”Yamaha Corporation, 2005
50
When an audio signal processing system is established,
track in the computer, to Which the audio signal sent from the
one channel is inputted, if the track is in a recording standby
55
state.
Further, it is also preferable that the audio signal processing
device includes plural channels, and the audio signal process
tem, since the audio signal processing device and the DAW
have to be set individually, there is a problem in its operabil
ing device includes a master selection control that accepts a
ity.
second selecting operation of the user, corresponding to all of
60
the channels, and causes the selection control to select Wet
signals to be supplied to the bus for all of the channels.
Further, it is also preferable that the audio signal processing
mixer and sounds sent to the DAW and sent back to the digital
mixer after processing in the DAW, the user has to perform an
ON/OFF operation as regards the output from input channel
to buses, identify a track in the DAW inputting the signal from
the input channel, and perform an ON/OFF operation as
regards the monitor of the identi?ed track.
bus.
In such an audio signal processing system, it is preferable
that the audio signal processing device remote-controls the
SUMMARY OF THE INVENTION
For example, conventionally, When sWitching output of
each channel betWeen sound processed only in the digital
in the one channel to the bus and remote-controls the com
puter to send back the audio signal from a track to Which the
audio signal sent from the one channel is inputted, as the Wet
This technique is disclosed in, for example, folloWing
proper settings are required to set to both of the audio signal
processing device and the computer to obtain a desired opera
tion. HoWever, in a conventional audio signal processing sys
by the selection control of one of the channels, the audio
signal processing device controls itself to supply an audio
signal processed in the one channel, as the dry signal of the
channel, to the bus and remote-controls the computer not to
send back the audio signal from a track to Which the audio
signal sent from the one channel is inputted, to the audio
signal processing device via the track and the communication
path, and When the Wet signal is selected by the selection
control of one of the channels, the audio signal processing
device controls itself not to supply the audio signal processed
computer With an operation panel of the audio signal process
ing device has been developed. For example, the remote con
adjust fader in each channel.
signal sent from the channel in the audio signal processing
device to the computer and sent back to the audio signal
65
device includes a display corresponding to the selection con
trol and a display controller that displays, on the display, that
a selection by the selection control is not re?ected to the
remote control When the audio signal sent from the one chan
nel is inputted to no track in the computer.
US 8,031,886 B2
3
4
Alternatively, it is also preferable that the audio signal
processing device includes a display corresponding to the
an audio signal from outside the device; one or more input
channels that controls a characteristic of the audio signal
selection control and a display controller that displays, on the
display, that a selection by the selection control is not
re?ected to the remote control when the track, to which the
audio signal as the signal sent from the one channel is input
ted, is not in a recording standby state in the computer.
Alternatively, it is also preferable that, when one track in
inputted from the input device; a transmission and reception
device that transmits the audio signal inputted from each of
the input channel by the input device to the computer via the
communication path and receives an audio signal from the
computer via the communication path; a second mixing bus
that mixes the audio signals supplied from each of the input
channels and the audio signal supplied from the transmission
and reception device and outputs the mixed signal output
the computer is switched from a released state to the record
ing standby state by the user, the state of the dry/wet selection
of a channel in the audio signal processing device, from which
the audio signal inputted to the one track is sent, is checked.
If the wet signal is selected, the audio signal processing
device controls itself not to supply the audio signal processed
outside the device; and a selection control that accepts a
selecting operation of a user and selects one of “dry” or “wet”
for each of the input channels. When the selection control
selects “dry” for one of the input channels, the audio signal
processing device controls itself to supply an audio signal
having a characteristic controlled by the one input channel to
in the channel to the bus and remote-controls the computer to
send back the audio signal from a track to which the audio
signal sent from the channel is inputted, as the wet signal of
the channel, to the audio signal processing device via the
communication path to supply the returned signal to the bus.
Alternatively, it is also preferable that the audio signal
processing device is a digital mixer.
Alternatively, it is also preferable that the audio signal
processing device includes a channel strip corresponding to
the channel and provided with controls for setting parameters
of the corresponding channel.
Further, it is also preferable that the selection control is
the second mixing bus and controls the recording and editing
20
25
processing device includes a connection con?rmation indica
regards a track channel corresponding to a track for which a
30
audio signal processing device and the application program
track, the track channel selects an audio signal to be inputted
Alternatively, it is also preferable that the audio signal
to the corresponding track to control the characteristics of the
processing device includes a connection detector that detects
includes: a computer that executes application software to
realiZe a function of a recording and editing device that
records and edits the audio signals; and an audio signal pro
audio signal.
35
40
FIG. 1 is a block diagram showing a functional con?gura
an embodiment of an audio signal processing system of the
45
FIG. 1;
50
signal processing device includes an input device that inputs
FIG. 3 is a diagram showing a functional con?guration of
a DSP in the digital mixer shown in FIG. 1;
FIG. 4 is a diagram showing a correspondence between
supply sources of waveform data and output ports in the
digital mixer shown in FIG. 1;
55
FIG. 5 is a diagram showing a correspondence between
supply sources of waveform data and output ports in the DAW
application shown in FIG. 1;
FIG. 6 is a diagram showing an example of a track control
60
GUI in the DAW application shown in FIG. 1;
FIG. 7 is a diagram showing a schematic con?guration of
an operation panel of the digital mixer shown in FIG. 1;
FIGS. 8A to SE are diagrams showing details of the opera
tion panel;
select one of an audio signal inputted to the track and an audio
signal reproduced in the track and control a characteristic of
the selected audio signal; and a ?rst mixing bus that mixes the
audio signals supplied from the plurality of track channels to
supply to the transmission and reception device. The audio
invention;
FIG. 2 is a diagram showing a functional con?guration of
an audio processing module in a DAW application shown in
tracks; a plurality of selecting devices provided correspond
ing to the tracks respectively to select an audio signal to input
to a corresponding track from the audio signals supplied from
the transmission and reception device; a plurality of track
channels provided corresponding to the tracks respectively to
BRIEF DESCRIPTION OF THE DRAWINGS
tion of a PC and a digital mixer constituting a mixer system as
ral audio signals can be transmitted. The computer includes a
signals sent by the audio signal processing device to supply to
the recording and editing device and transmits the audio
signals supplied from the recording and editing device to the
audio signal processing device via the communication path.
The recording and editing device includes a plurality of tracks
that record and/or reproduce audio signals inputted to the
The above and other objects, features and advantages of the
invention will be apparent from the following detailed
description which is to be read in conjunction with the accom
panying drawings.
cessing device that processes the audio signals, the computer
and the audio signal processing device being connected via a
communication path through which a control signal and plu
transmission and reception device that receives the audio
corresponding selecting device selects an audio signal input
ted to the one input channel as an audio signal to input to the
executed in the computer is established or not.
whether logical connection between the audio signal process
ing device and the application program executed in the com
puter is established or not. The audio signal processing device
remote-controls the computer only if the connection detector
detects that logical connection between the audio signal pro
cessing device and the application program executed in the
computer is established.
Another audio signal processing system of the invention
signal processing device controls itself to stop supplying the
audio signal having a characteristic controlled by the one
input channel to the second mixing bus and controls the
recording and editing device in the computer such that, as
provided in the channel strip.
Alternatively, it is also preferable that the audio signal
tor which displays whether logical connection between the
device in the computer such that, as regards a track channel
corresponding to a track for which a corresponding selecting
device selects an audio signal inputted to the one input chan
nel as an audio signal to input to the track, the track channel
selects an audio signal to be reproduced in the track to control
the characteristics of the audio signal. When the selection
control selects “wet” for one of the input channels, the audio
FIG. 9 is a ?owchart of a process in the PC when detecting
a new connection of a device;
65
FIG. 10 is a ?owchart of a connection con?rmation process
regularly implemented by the DAW application when the
synergetic control program is active;
US 8,031,886 B2
6
5
iZing or effect addition on the waveform data (signal process
FIG. 11 is a ?owchart of a connection con?rmation process
regularly implemented by the digital mixer;
ing). These functions are realiZed by executing proper appli
cation programs by the CPU.
Further, the DAW application 20 is an application program
for producing music compositions having a con?guration
FIG. 12 is a ?owchart ofa process in response to an ON
event of the STMIX button;
FIG. 13 is a ?owchart ofa process in response to an ON
with a plurality of tracks. The waveform data or various
event of the HWMIX button;
FIG. 14 is a ?owchart of a process implemented by the
digital mixer when detecting an ON event of the WET button
of an i-th input channel;
FIG. 15 is a ?owchart of a process implemented by the
settings related to recording, reproducing, automatic perfor
mance and signal processing composes a song as a tune. The
data of the song can be stored to an HDD of the PC 10 as a
song ?le and read from the HDD.
More concretely, the DAW application 20 includes a GUI
DAW application when receiving a WET(i) command;
(Graphical User Interface) control module 21, an MIDI pro
cessing module 22, an audio processing module 23 and a
FIG. 16 is a ?owchart of a process implemented by the
DAW application when receiving a DRY(i) command;
remote control module 24.
The GUI control module 21 displays a GUI on a display to
FIG. 17 is a ?owchart of a process implemented by the
DAW application when detecting an operation event of a
recording standby button of a j-th track; and
FIG. 18 is a ?owchart of a process implemented by the
digital mixer when receiving a WSC(i) command.
20
DETAILED DESCRIPTION OF THE PREFERRED
EMBODIMENTS
Hereinafter, preferred embodiments of the invention will
be concretely described with reference to the drawings.
mance.
The audio processing module 23 processes audio wave
form data for recording, reproduction or signal processing.
The recording and reproduction in the MIDI processing
25
FIG. 1 shows a functional con?guration of a PC and a
FIG. 1 simply shows a function related to an audio signal
30
a PC 10 as a general-purpose computer and a digital mixer 30
as an audio signal processing device are connected to transmit
and receive data to and from each other and constitute a mixer
processing unit 23 will be given later.
35
The PC 10 includes various audio I/Os (input and output
units) 11, various audio I/O drivers 12, an API (Application
Program Interface) 13 and a DAW (Digital Audio Worksta
40
system can employ conventional devices such as a CPU,
ROM, RAM, HDD (Hard Disk Drive) and communication
interface.
The various audio I/Os 11 are interfaces for transmitting
and receiving data such as waveform data in an audio format,
50
mLAN communications, which is an audio data communica
tion standard proposed by Yamaha Corporation. Further, the
system can employ the USB (Universal Serial Bus) standard,
addition to the above, the system can include an ADC or a 55
DAC, which are similar to a later described digital mixer 30.
The various audio I/O drivers 12 has a function to control
Next, the digital mixer 30 will be described. The digital
mixer 30 includes ADCs (analogue-digital converters) 31,
DACs (digital-analogue converters) 32, a DSP (digital signal
processor) 33, a UI (user interface) 34, a control microcom
puter 35 and a MIDI I/O 36 and an audio LAN I/O 37.
The ADCs 31 are interfaces for converting an analogue
operations of the various audio I/Os 11. The function is real
iZed by executing appropriate programs by the CPU.
audio signal inputted from outside into a digital signal (wave
60
form data) to supply to the DSP 33. Twelve ADCs 31 respec
tively corresponding to twelve channels are provided.
System) and used when operating an application program.
The DACs 32 are interfaces for converting the digital wave
The DAW application 20 has a function as a second signal
data (automatic performance), or performing mixing, equal
30 can be performed by the operating device of the PC 10.
Further, the DAW application 20 and the digital mixer 30 can
cooperate, for example, to modify related set contents or carry
out related operations at the same time.
the Ethernet (registered trademark) standard and the like. In
processor for, according to a user’s operation, recording
inputted waveform data or performance data, reading the
recorded waveform data or performance data to output (re
produce), generating waveform data based on performance
to the PC 10 and, in addition, the function of the remote
control module 24 allows a remote control of the DAW appli
cation 20 using controls provided in an externally provided
digital mixer 30. Inversely, remote control of the digital mixer
system can employ an interface of IEEE 1394 (Institute of
The API 13 is a program interface in an OS (Operating
control unit 24 sends a command according to the operation to
the digital mixer 30 to let the digital mixer 30 operate accord
ing to the command.
The operation of the DAW application 20 can be operated
by operating device such as a keyboard or a mouse provided
45
performance data in an MIDI (Musical Instruments Digital
Interface) format and a command instructing a particular
operation to a destination device. Concretely, for example, the
Electrical and Electronic Engineers 1394) standard for
The remote control module 24 interprets a command sent
from the digital mixer 30 and modi?es the set contents in the
DAW application 20, and starts or stops operations, according
to the interpretation. Further, when a particular operation is
performed to the DAW application 20 in the PC 1 0, the remote
tion) application 20. Except for the various audio I/Os 11,
those are functions realiZed by software. As hardware, the
tracks can be outputted to individually set destinations to
input the pieces of data to individual channels of the digital
mixer 30.
The detail description of the con?guration of the audio
As shown in FIG. 1, according to the present embodiment,
system.
module 22 and audio processing module 23 can be performed
in the plural tracks on a track-to-track basis. In other words,
pieces of data of plural channels, which are input from the
digital mixer 30, can be individually inputted to different
tracks to record, or pieces of data reproduced in the plural
digital mixer, constituting a mixer system as an embodiment
of an audio signal processing system of the invention. Here,
processing.
accept a user’s operation and displays various information of
the DAW application 20, such as set contents, operation states
and contents of data to be processed.
The MIDI processing module 22 processes MIDI perfor
mance data for recording, reproduction or automatic perfor
form data processed by the DSP 33 into an analogue audio
signal to output. Eight DACs respectively corresponding to
65
eight channels are provided.
The DSP 33 is a ?rst signal processor for performing signal
processing such as equalizing, mixing or level adjusting to the
US 8,031,886 B2
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8
input digital Waveform data and outputting the processed
be modi?ed by the user. The input patch 201 also mixes data
to input data of plural channels to a single channel or track;
hoWever, the connection is made one by one in general.
The input channel 202 performs processing such as equal
Waveform. The equalizing and level adjusting can be carried
out individually in each of the plural channels. The processed
Waveform can be outputted individually from each channel or
after mixing Waveforms of the plurality of channels.
izing, level adjusting, effect adding on the inputted Waveform
data and outputs the processed data. Regarding the effect
addition, the function can also be added by plug-in. The
The functional con?guration of the signal processing in the
DSP 33 Will be described later in detail.
The UI 34 includes various controls for accepting user’s
processed data is outputted to one or more selected buses of
operation and displays shoWing information to the user and,
the mixing bus 203. The output destination can be set by the
user. Further, any number of input channels 202 can be pro
in this embodiment, those are provided on an operation panel.
This UI 34 accepts user’s instruction and displays set con
tents, contents of signal being processed or operation state in
the digital mixer 30.
The control microcomputer 35 is a controller, Which
includes a CPU, a ROM, a RAM and the like and controls the
operations of the digital mixer 30, for example, instructing
parameter setting or an operation to the DSP 33, controlling
operation detection or display in the UI 34, and controlling
communications via the MIDI I/O 36 or the audio LAN I/O
37.
The MIDI I/O 36 is an interface for transmitting and receiv
ing MIDI data to and from an external device such as a tone
20
processing such as equalizing or level adjusting on the Wave
form data inputted to the track 210 before recording the data
in the audio track 212. The reproduction adjustment channel
generator 40 and a synthesizer. In this example, the MIDI I/O
36 is capable of transferring only data of one channel for both
outputting and inputting.
25
The audio LAN I/O 37 is an interface for sending and
receiving data such as Waveform data, performance data or a
command to and from an external device (the PC 10, in this
30
In the mixer system shoWn in FIG. 1, the digital mixer 30
can independently process audio signals inputted from the
ADCs 31 and output the signals from the DACs 32, and the
PC 10 can independently process the Waveform data recorded
The mixing bus 203 outputs the Waveform data inputted
35
mixing bus 203 mixes the data before outputting. Further, as
example.
the mixing bus 203, there are some kinds of buses such as
40
and then, sent to the PC 10 to be recorded.
(b) Audio signals inputted from the ADCs 31 are sent to the
PC 10 With feW processing and the PC 10 processes the
45
signals are sent back to the digital mixer 30 and outputted
from the DACs 32.
The con?guration related to these operations Will be
described in more detail.
FIG. 2 shoWs a functional con?guration of the audio pro
from the input channel 202 or the track 210 to the input patch
201 or output channel 204. Further, When data is inputted
from a plurality of channels or tracks to a single bus, the
Work together to provide the folloWing operations, for
signals before recording the signals. Further, the recorded
nel 213 is output to one or more selected buses in the mixing
bus 203. The output destination can be set by the user. Further,
any number of tracks 210 can be provided Within the hard
Ware capacity of the PC 10.
in the HDD and record the processed data. In addition, the PC
10 (the DAW application 20) and the digital mixer 30 can
(a) Audio signals inputted from the ADCs 31 or audio signals
received from the PC 10 are processed in the digital mixer 30,
213 also includes the same con?guration as that of the input
channel 202 and performs processing such as equalizing or
level adjusting on Waveform data (including monitor output)
outputted from the audio track 212 before outputting from the
track 210. Also in these channels, plug-in effect is available.
The signal processed in the reproduction adjustment chan
example). The audio LAN I/O 37 employs standards of hard
Ware and communications corresponding to those in the PC
10.
vided Within the hardWare capacity of the PC 10.
The track 210 for recording and reproducing includes a
recording adjustment channel 211, an audio track 212 and a
reproduction adjustment channel 213. With the audio track
212, the input Waveform data is recorded and the recorded
Waveform data is read to output. A monitor output operation
for directly outputting recorded Waveform data is also avail
able.
The recording adjustment channel 211 includes the same
con?guration as that of the input channel 202 and performs
50
cessing module 23 in the DAW application 20. In FIG. 2, the
stereo output bus (ST), 5.1 channel output bus (5.1ch), AUX
output bus (AUX) and monaural output bus (channel), and
any of those buses can be selected and employed.
The ST bus andAUX bus are sets oftWo buses ofL and R,
and the 5.1ch bus is a set of six buses of L, R, C, LFE, Ls and
Rs. When the busses are designated as output destinations by
the input channel 202 or the track 210, the buses are desig
nated on a set basis. The Waveform data outputted from the
input channel 202 or the track 210 is allocated to each bus of
the set according to the setting in a sound image localization.
The AUX bus is often used With a main mixing for, for
example, mixing signals to be sent to an external effector.
I/Os de?ned by broken lines are not included in the DAW
Accordingly, Waveform data is supplied to the AUX bus
application 20, and the other parts except for the I/Os are
functions realized by softWare.
As shoWn in FIG. 2, the audio processing unit 23 includes
an input patch 201, an input channel 202, a mixing bus 203, an
output channel 204, an output patch 205 and a track 210 for
regardless of the setting of output destinations speci?ed in the
55
pendently inputs and outputs data. Father, any number of
recording and reproducing.
channel buses can be provided Within the hardWare capacity
The input patch 201 allocates Waveform data inputted from
an audio I/O 221 by ADCs, an audio LAN I/O 223 (both of
Which compose the various audio I/O 11 in FIG. 1), and the
mixing bus 203 to one of the input channel 202 and track 210
to transmit data according to the allocation. This allocation
and transmission is a logical connection. The content of the
logical connection is previously set based on a later described
track 210. It is noted that these buses are second buses and
only one set can be provided, respectively.
The channel bus is an independent bus and each bus inde
of the PC 10.
60
The output channel 204 is provided corresponding to each
bus composing the mixing bus 203 and performs processing
such as equalizing or level adjusting on the Waveform data
outputted from the DAW application 20 and outputs the pro
65
cessed data. The output channel 204 also has a con?guration
same as that of the input channel 202 and plug-in effect is
connection template When a neW song is created With the
available. Then, the output patch 205 allocates the processed
DAW application 20. HoWever, the set content can arbitrarily
data to one of output modules.
US 8,03l,886 B2
10
The output patch 205 allocates Waveform data processed
ST bus 322. The channel ON sWitch 314 adjusts ON and OFF
of the Waveform data. The pan 315 adjusts the sound image
localiZation position of the Waveform data. The Waveform
data is divided into L and R systems by the pan 315.
The REC send ON sWitch 316 and the ST send ON sWitch
317 respectively have a function for controlling Whether or
not the Waveform data is outputted from the input channel 3 10
to the REC bus 321 and ST bus 322.
The AUX fader 318 has a function for adjusting the level of
Waveform data outputted from the input channel 310 to the
AUX bus 323 in L and R busses independently.
Further, the REC bus 321, ST bus 322 andAUX bus 323 are
by each output channel 204 to one of the audio I/O 222 by
DACs and audio LAN I/O 223 (both of Which compose the
various audio I/O 11 in FIG. 1) to transmit data according to
the allocation. This allocation and transmission is a logical
connection. The content of the logical connection is, similar
to the input patch 201, previously set based on a later
described connection template and the set content can arbi
trarily be modi?ed by the user. Since the logical connection
for the Waveform data outputted from the audio LAN I/O 223
needs to correspond to the con?guration of the destination
device, it is possible to prohibit its modi?cation. Further,
When plural busses are connected to the same port, the output
patch 205 mixes the Waveform data outputted from those
busses before supplying to the port.
The number of ports being able to use for transmission
depends on the hardWare capacity of the PC 10, the commu
nication path standard used for the transmission, the capacity
of the receiver, and the like. In this example, regarding the
Waveform data, the digital mixer 30 has a transmission capac
20
ity for sixteen ports and reception capacity for sixteenports so
the audio LAN I/O 223 sends Waveform data from sixteen
sources of ports P1 to P16.
FIG. 3 shoWs a functional con?guration of the DSP 33 in
the digital mixer 30. In FIG. 3, the I/ Os de?ned by the broken
25
30
As regards the input channels 310, tWelve channels are
provided corresponding to the tWelve channels of the ADCs
31 shoWn in FIG. 1. The respective input channels 310 per
form processing such as equalizing and level adjusting on the
inputted Waveform data. The input source of the Waveform
35
data canbe selected from theADCs 31 and the audio LAN I/O
40
37 in every channel, and the processed data is directly out
putted to each of the various buses and the audio LAN I/ O 37.
Such an input channel 310 includes an input changeover
sWitch 311, a characteristic adjusting module 312, a channel
fader 313, a channel ON sWitch 314, a pan 315, a REC send
ON sWitch 316, a ST send ON sWitch 317 and anAUX fader
318.
The input changeover sWitch 311 is a ?rst selecting device
for sWitching the inputting source of the Waveform data
betWeen the ADCs 31 and the audio LAN I/O 37. When
selecting the ADCs 31, Waveform data supplied to a particular
data outputted from the AUX bus 323 to the DACs 32.
The ST output ON sWitch 325 and the ST output fader 326
respectively adjust ON/OFF of the output and the level of the
outputted Waveform data from the ST bus 322.
The ST input fader 327 and the ST input ON sWitch 328
respectively adjust the level and ON/OFF of the signal input
lines are not included in the DSP 33. Further, each function of
the DSP 33 can be realiZed any of dedicated hardWare or
softWare With a programmable processor.
As shoWn in FIG. 3, the DSP 33 includes input channels
310, a recording (REC) bus 321, a stereo (ST) bus 322, an
AUX bus 323, an AUX output fader 324, a ST output ON
sWitch 325, a ST output fader 326, a ST input fader 327, a ST
input ON sWitch 328, an AUX input fader 329, a doWn mixer
330, an output patch 331, and an output fader 332.
respectively mixing buses composed of a pair of L and R
buses and have functions for mixing the data input from each
input channel 310 and audio LAN I/ O 37 separately in the L
and R busses and outputting the mixed data to a predeter
mined output destination. The output destination of the REC
bus 321 is the audio LAN I/O 37, the output destination of the
ST bus 322 is the audio LAN I/O 37 and the output patch 331,
and the output destination of the AUX bus 323 is the output
patch 331 and AUX outputting DAC 32. Further, in this
example, the ST bus 322 is the ?rst bus.
The AUX output fader 324 adjusts the level of Waveform
ted from the audio LAN I/O 37 to the ST bus 322.
The AUX input fader 329 adjusts the level of the signal
inputted from the audio LAN I/ O 37 to the AUX bus 323.
The doWn mixer 330 doWn-mixes the Waveform data input
ted from the ports P1 to P6 of the audio LAN I/O 37, Which
correspond to the 5.1ch buses of the DAW application 20,
from 5.1 channel data to ST data. Here, it is not required to
determine Whether or not the Waveform data inputted form
the ports P1 to P6 is actually the Waveform data of 5.1 chan
nels. This is because, even When non-related Waveform data is
doWn-mixed, there Will be no problem if the output patch 331
does not select the data to output.
The output patch 331 selects a signal to output from the
DAC 32 for monitor output from several options. The options
are: an output from the ST bus 322, an output from the AUX
45
bus 323, an output from the ST bus of the DAW application 20
received by the audio LAN I/O 37, an output from the 5.1ch
bus of the DAW application 20 received by the audio LAN I/O
37, and an output doWn-mixed by the doWn mixer 330. The
user can decide and set Which is to be selected from the above.
ADC corresponding to the channel from outside as an ana
It is noted that the DAC 32 for monitor output includes six
channels; hoWever, all of the six channels are used only When
the output of the 5.1ch bus is selected and only tWo of them are
logue signal is inputted to the input channel 310. When select
used in other cases.
ing the audio LAN I/ O 37, Waveform data received as a digital
signal by a particular port of the audio LAN I/O 37 corre
50
The output fader 332 adjusts the level of the Waveform data
55
selected by the output patch.
60
The above described DSP 33 outputs Waveform data sup
plied from sixteen channels in total, from the audio LAN I/O
37 to the external device (the DAW application 20 of the PC
10, in this example), the sixteen channels including each of
the tWelve input channels 310, tWo of the L and R channels of
sponding to the input channel 310 is inputted. Here, When
there are no digital signals, the system for analogue signal can
be selected compulsory.
The characteristic adjusting module 312 performs process
ing such as an equalizer, ?lter or compressor on input Wave
form data. The signal processed in the characteristic adjusting
the ST bus 322 and tWo of the L and R channels of the AUX
bus 323. Forthis process, the sixteen ports P1 to P16 are used.
FIG. 4 shoWs a correspondence betWeen Waveform data
sources and output ports.
unit 312 is supplied to the audio LAN I/O 37 as a direct out
output and transmitted to the DAW application 20 of the PC
10, and further, the signal is also outputted to the various
busses after some other processes.
The channel fader 313 adjusts the level of Waveform data
outputted from the input channel 310 to the REC bus 321 and
65
In the digital mixer 30, from Where the Waveform data is
supplied to each of the output ports (source) and to Where the
Waveform data from each of the input ports is supplied (des
US 8,031,886 B2
11
12
tination) are ?xedly designed and users are not allowed to
?eld for each recording and reproducing track 210 to be
created, in order to accept settings of the corresponding
modify the correspondence. Thus, the DAW application 20
having a logic connection to the digital mixer 30 can recog
recording and reproducing tracks 210 and display the infor
niZe a channel or a bus of the digital mixer 30 Which is a
mation.
In each ?eld, a recording standby button 411, a monitor
button 412, a type display portion 413, a name set portion 414,
source of the received Waveform data With its port number,
based on the correspondence.
On the other hand, as described With reference to FIG. 2,
the DAW application 20 also sends Waveform data With the
sixteen ports P1 to P16 to the digital mixer 30 via the audio
LAN.
The DSP 33 handles the Waveform data received via the
ports P1, P2 as an output of the ST bus of the DAW application
20 and inputs the data to the ST bus 322 and the output patch
331 of the digital mixer 30. The DSP 33 also handles the
Waveform data received via the ports P1 to P6 as an output
an input source set portion 415 and an output destination set
portion 416 are provided.
The recording standby button 411 is a button for sWitching
by toggling betWeen a recording standby state and a released
state of each track. The monitor button 412 is a button for
sWitching by toggling betWeen monitor output ON and OFF
of each track.
When it is instructed to start recording (When a recording
button 435 is turned on and then a start button 434 is turned
from the 5.1ch bus of the DAW application 20 and inputs the
data to the output patch 331 and the doWn mixer 330. Further,
the DSP 33 handles the Waveform data received via the ports
P3 to P14 as an output from the channel bus of the DAW
application 20 and supplies as digital inputs to each of the
tWelve channel busses 310 as digital signals. Furthermore, the
DSP 33 handles the Waveform data received via the ports P15,
20
on), the recording at the tracks 210 Which are in a recording
standby state is started. The Waveform data inputted to those
tracks is recorded. Further, reproduction at the tracks 210
Which are not in a muted state (reproduction off) among other
tracks 210 is started, and recorded Waveform data is read out
and outputted from those tracks. On the other hand, When it is
P16 as an output from the AUX bus of the DAW application
instructed to start reproducing (When the recording button
20 and supplies the data to the AUX bus 323 of the digital
mixer 30.
FIG. 5 shoWs a correspondence betWeen the Waveform data
sources and output ports. The DAW application 20 having a
logical connection to the digital mixer 30 can recogniZe a
435 is turned off and then the start button 434 is turned on),
25
is started, and recorded Waveform data is read out and out
putted from those tracks. A monitor output function is alWays
turned on regardless of states of stopping, recording or repro
channel or a bus of the digital mixer 30 Which is a destination
of the transmitting Waveform data With its port number, based
30
on the correspondence.
As seen in FIG. 3 and FIG. 5, the digital mixer 30 some
times handles Waveform data received from a single port as a
plurality of different kinds of Waveform data redundantly.
Concretely, the digital mixer 30 handles the data from the
The type display portion 413 is a display portion for dis
35
Further, the digital mixer 30 handles the data from the ports
40
application 20. Then, in the DAW application 20, the output
patch 205 performs a logic connection to send data from a
single port by mixing different kinds of bus outputs.
In this regard, Without proper settings of both the DAW
application 20 and the digital mixer 30, a desired operation
ducing, and the Waveform data inputted for recording is out
putted from the track 210 having monitor output turned on.
playing Whether the type of the track 210 is an audio track (A)
ports P1, P2 as both an output of the ST bus and an output
from the L and R of the 5.1 bus of the DAW application 30.
P3 to P6 as both an output ofC, LFE, Ls, Rs ofthe 5.1 bus and
an output of the ?rst to fourth channel buses of the DAW
reproduction at the tracks 210 Which are not in a muted state
45
for audio data or an MIDI track (M) for MIDI data. The type
of each track is determined When it is created and cannot be
changed. Accurately, the tracks 210 shoWn in FIG. 2 are all
audio tracks and an MIDI track is provided in the MIDI
processing module 22 shoWn in FIG. 1.
The name set portion 414 is a region for inputting and
setting names of the tracks 210.
The input source set portion 415 is a region for setting an
input source, for each track, to be connected to the track 210
by the input patch 201. In case of an audio track, generally,
names or numbers of the prepared audio I/ O 221, audio input
ports of audio LAN 1/ O 223, and buses composing the mixing
bus 203 in the PC 10 are shoWn as pull-doWn menu options,
cannot be obtained or an error can occur in the operation
thereof. HoWever, in this example, a dedicated control is
and a port or a bus to be an input source is selected from the
provided to the digital mixer 30 and, With the control, proper
portions. HoWever, the DAW application 20 having a logical
and desired settings can be set in both the DAW application 20
and the digital mixer 30. One example of the settings is not to
simultaneously output Waveform data to the ST bus and 5 . 1 ch
bus. With such a setting, errors can be prevented in general.
The location and function of the controls for this purpose Will
be described later.
Next, the user interface for accepting operation related to
the functions, Which have been described With reference to
FIGS. 2 to 5, Will be described.
FIG. 6 shoWs a display example of a track control GUI of
the DAW application 20.
The PC 10 basically accepts operations related to the DAW
application 20 from the GUI shoWn on the display by the GUI
control module 21. FIG. 6 shoWs an example of the GUI,
Which shoWs a track setting WindoW 410 and a recording and
reproducing WindoW 430 on a screen 400 of the display.
The track setting WindoW 410 is a screen to perform setting
related to the tracks 210 shoWn in FIG. 2. The track setting
WindoW 410 includes a one-line length setting and displaying
50
connection to an audio signal processing device such as the
digital mixer 30 can specify a supply resource in the audio
signal processing device Which sends data to each of the audio
input ports, according to a correspondence as shoWn in FIG.
4, so that in the pull-doWn menu, the names of supply sources
can be shoWn as substitute for the port names and port num
55
bers of the audio input ports.
The output destination set portion 41 6 is a region for setting
an output destination of Waveform data from the tracks 210
for each track. In case of an output destination of the an audio
track, names or numbers of the prepared audio I/ O 222, audio
60
output ports of the audio LAN 1/0 223, and buses composing
the mixing bus 203 are shoWn in a pull-doWn menu, a port or
a bus to be an output destination is selected from the portions.
HoWever, the DAW application 20 having a logic connection
65
to an audio signal processing device such as the digital mixer
30 can specify a supply destination in the audio signal pro
cessing device from each of the audio output port based on a
correspondence as shoWn in FIG. 5, so that in the pull-doWn
US 8,031,886 B2
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14
menu, names of the supply destinations can be shown as
characteristic of an equalizer of the characteristic adjusting
substitute for port names and port numbers of the audio output
module 312 and an AUX level knob 522 for setting a level
ports.
adjusting value of the AUX fader 318.
FIG. 8C shows a con?guration of the portion C. In this
portion, provided are an HPF button 531 for setting an effec
tive/disabled of a high pass ?lter (HPF) of the characteristic
adjusting unit 312, a phase inversion button 532 for switching
ON and OFF of a phase inversion process in the characteristic
adjusting unit 312, an input changeover button 533 for select
In the example shown in FIG. 6, input sources of the ?rst
four tracks 210 are respectively set to 3rd, 9th, 11th and 12th
input channels in the digital mixer 30, and output destinations
of all those tracks are set to ST bus.
In case of the MIDI track, its input source is assumed to be
an electronic musical instrument compatible with MIDI or a
sequencer, and its output destination is assumed to be a sound
ing analogue or digital at the input changeover switch 311,
generating device in addition to the above. However, the
intimate explanation thereof is omitted.
and a compressor knob 534 for setting a characteristic of a
compressor in the characteristic adjusting unit 312.
FIG. 8D shows a con?guration of the portion D. In this
The track setting window 410 also has a track content
indicator 420.
The track content indicator 420 is a portion indicating a
portion, provided are controls for performing setting in the
digital mixer 30 in association with the setting of the DAW
data storage condition and a recording and reproducing status
in each track. The abscissa axis represents time. Bars 421
represent time periods of recorded data. A cursor 422 indi
cates a portion to start recording or reproducing or an execut
application 20. A REC WET button 541 is a button for
20
ing position. Further, a slider 423 and scroll buttons above and
under the slider 423 are used to change tracks shown in the
track setting window 410.
The recording and reproducing window 430 is a window
for accepting an operation to start and stop recording or
reproducing. Then, a fast-rewind button 431 and a fast-for
25
to stop reproducing, recording, fast-rewinding and fast-for
30
434 between start of reproducing and start of recording. A
35
The meter section 552 is composed of a display to indicate
40
mixer 30 includes a channel strip section 501 composed of
controls for setting parameters of the respective channels of
the input channel 310 and a general setting section 502 com
45
to one channel and the same sets of controls are provided for
50
image localiZation position by the pan 315 shown in FIG. 3,
55
an ON button 512 for setting ON or OFF of the channel ON
switch 314, a fader 513 for setting a level adjusting value by
the channel fader 313, a REC ON button 514 for setting ON
or OFF of the REC send ON switch 316, and an ST ON button
515 for setting ON or OFF of the ST send ON switch 317.
Further, a WET button 516 is a button for switching later
described WET mode and DRY mode. A level meter 517 is a
meter for indicating a level of a signal inputted to a corre
sponding input channel 310.
FIG. 8B shows a con?guration of the portion B. In this
portion, provided are an equalizer knob 521 for setting a
the PC 10 (a connection with an audio LAN cable) and a
of the PC 10 and the DAW application 20 is connected to a
port of the PC 10 for transmitting audio LAN control signals,
the control microcomputer 35 of the digital mixer 30 works as
ing displays for turning on, turning off and blinking the lamps
to indicate values of parameter set by the buttons.
FIG. 8A shows a con?guration of the portion A. In this
portion, provided are a pan knob 511 for setting the sound
a level of waveform data, which is being processed in each
portion of the digital mixer 30.
Here, the logical connection between the digital mixer 30
and the DAW application 20 is descried with an assumption
that a physical connection between the digital mixer 30 and
logical connection between the digital mixer 30 and the PC 10
(a logical connection between ports of the audio LANs of the
digital mixer 30 and the PC 10) are both established. In this
condition, when the DAW application 20 is started on the OS
section 501, a set of controls arranged in tandem corresponds
twelve channels.
FIGS. 8A to SE show controls represented by letters A to E
in FIG. 7. Buttons described below have lamps as correspond
The connection con?rmation lamp 551 is a lamp for indi
cating whether or not the digital mixer 30 and the DAW
application 20 are logically connected and the transmission
and reception of data such as waveform data and command
are available.
As shown in FIG. 7, the operation panel 500 of the digital
posed of controls for setting other parts. In the channel strip
FIG. 8E shows a con?guration of the portion E. In this
portion, provided are a connection con?rmation lamp 551 and
a meter section 552.
ducing and recording. A recording button 435 is used to
switch, by toggling, the function of pressing the start button
for showing the position indicated by the cursor 422 as time
from the begging of the track.
FIGS. 7 and 8A to SE show a con?guration of an operation
panel of the digital mixer 30. FIG. 7 shows its outline and
FIGS. 8A to SE show details of each part.
ting, with a single operation, suitable for the case of mixing in
the ST bus in the DAW application 20, the case of mixing in
the DAW application 20, respectively in order.
ing and a fast-forwarding. A stop button 433 is used to instruct
recording and reproducing position indicator 436 is a portion
of the REC bus 321. A WET master button 542 is a button for
instructing a WET mode to all channels at once. A ST (stereo)
MIX button 543, a HW (hardware) MIX button 544, and a 5 .1
MIX button 545 are work mode buttons for performing set
the digital mixer 30 and the case of mixing in the 5 . 1 ch bus in
ward button 432 are used to instruct to execute a fast-rewind
warding. A start button 434 is used to instruct to start repro
instructing a WET mode (a mode of inputting an output of the
REC bus 321 to the ST bus 322 via the DAW application 20)
60
a synergetic controller so that the digital mixer 30 and the
DAW application 20 can work in cooperation based on a
correspondence as shown in FIGS. 4 and 5. This condition is
referred as a condition in which a logical connection between
the digital mixer 30 and the DAW application 20 is estab
lished.
It is noted that there exist plural controls on the general
setting section 502 of the digital mixer 30 in addition to the
above described controls. For example, provided are a selec
65
tion control for selecting an input from inputs of ?ve systems
of the output patch 331, four level knobs respectively corre
sponding to the ST input fader 327, AUX input fader 329, ST
output fader 326 and AUX output fader 324, and two ON
buttons respectively corresponding to the ST input ON switch
328 and ST output ON switch 325.
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