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DESCRIPTION JP2013008262

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DESCRIPTION JP2013008262
PROBLEM TO BE SOLVED: To efficiently perform screen enlargement / reduction and
reproduction control during music data editing work. When a pinch operation is performed on a
slider of a controller, two operation points are determined, and a zoom in or out of the DAW
screen is performed according to the change speed and change amount of the distance between
two points. Become. In addition, when the slide operation is performed on the slider of the
controller, the operation point is determined to be one place, and the DAW function is controlled
according to the movement content of the slider and the operation content of the movement
amount. [Selected figure] Figure 6
Controller and parameter control method
[0001]
The present invention relates to a controller that manipulates parameters involved in acoustic
signal processing and a parameter control method.
[0002]
2. Description of the Related Art Conventionally, in an acoustic signal processing apparatus using
a computer, it is known to perform sound processing operations such as recording, editing, and
mixing of performance data.
The computer used in the audio signal processing device is a general-purpose computer such as
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a PC (personal computer), and is provided with an audio interface necessary for the audio signal
processing device and various hardware devices such as MIDI (Musical Instrument Digital
Interface). . In addition, an application program for executing an acoustic signal processing
function is implemented in the computer. As a result, in the computer, an audio signal processing
function such as recording and reproduction of audio signals or application of effects and mixing
is realized. Such an audio signal processing apparatus is called a digital audio workstation (DAW).
An application program that causes a computer to execute this DAW function is called "DAW
software" in the following description.
[0003]
Although music production on a PC is generally performed, when DAW software is installed on a
PC, it is possible to create music by inputting MIDI data on the DAW or cutting and pasting audio
data. When performing such music production, it is complicated to operate with a mouse or a PC
keyboard, since many detailed operations such as setting appropriate timing for cutting and
pasting music waveforms are required. For this reason, a dedicated controller for DAW operation
is connected to a PC on which DAW software is installed, and remote control of the DAW is
performed using the knobs, sliders, buttons, etc. of this controller.
[0004]
Steinberg Media Technologies GmbH CC121 Operation Manual, page 15-19, [online], [searched
May 23, 2011], Internet
<ftp://ftp.steinberg.net/Download/Hardware/CC121/CC121_OperationManual_en.pdf >
[0005]
In the music data editing using the DAW, while looking at the screen of the DAW displayed on
the display of the PC, the location bar is advanced to the editing position and the editing work is
performed.
The location bar serves as a cursor that indicates the current playback position and also indicates
the editing position. When moving the location bar, if the tracks displayed on the screen are
reduced in the horizontal direction (time axis direction), the entire song can be viewed, and the
location bar can be efficiently moved to the desired position. On the other hand, when editing
audio data on the DAW, by enlarging the waveform at the editing position, accurate editing can
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be performed while grasping the amplitude and timing. Therefore, while editing the music data,
move the location bar to the editing position while reducing the screen, then expand the screen
to perform waveform editing, and after editing, shrink the screen again to move the location bar
to the next editing position It is necessary to repeat the enlargement and reduction of the screen,
such as moving to the top. However, adding controls for screen enlargement / reduction to a
controller for controlling the musical functions of the DAW originally would make it difficult to
find the controls necessary to increase the number of controls, or the controls would Operability
is reduced, for example, as it becomes smaller and difficult to operate. Therefore, in the
conventional small controller, the controller and mouse (or keyboard) operation is alternated as
editing operation and playback control of data are performed by the controller but enlargement /
reduction of the screen is performed by keyboard shortcut of mouse or PC. I needed to do it.
Therefore, according to the present invention, there is provided a small-sized controller capable
of efficiently performing the editing operation while the screen can be enlarged / reduced by a
simple operation during the music data editing operation without having an operator for the
screen enlargement / reduction. It aims to provide a parameter control method.
[0006]
In order to achieve the above object, the controller according to the present invention comprises
an operator capable of operating the reproduction state of the song displayed on the display
means for displaying the track into which the song data of the song has been input, the controller
Is operated in the first mode to generate an instruction to change the parameter of the operation
target for reproducing the music, and when the operator is operated in the second mode, the
track displayed on the display means is enlarged or reduced. The main feature is that the
instruction to display is generated.
[0007]
According to the present invention, when the operator is operated in the first mode, an
instruction to change the parameter of the operation target for reproducing the music is
generated, and when the operator is operated in the second mode, the track displayed on the
display means Since an instruction to display enlarged or reduced is generated, it is possible to
efficiently perform screen enlargement / reduction and playback control during music data
editing work.
In this case, even if there is no operation for zooming, the screen can be enlarged or reduced, and
there is no need to provide an operation for zooming only, so that the operation is prevented
from becoming complicated and the operation can be performed. The apparatus provided can be
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miniaturized. In addition, since there is no need to move the hand position or the line of sight
between the zoom and other operations, work can be performed efficiently.
[0008]
It is a figure which shows the structure of the system which connected the controller concerning
the Example of this invention to PC. It is a block diagram showing the hardware constitutions of
the controller concerning the example of the present invention. It is a figure showing
composition of a panel of a controller concerning an example of the present invention. It is a
figure for demonstrating operation of the 1st aspect of the slider in the controller concerning this
invention. It is a figure for demonstrating operation of the 2nd aspect of the slider in the
controller concerning this invention. It is a flowchart of the slider operation process which the
controller concerning this invention performs. It is a figure which shows the structure which
switches the function allocated to the slider in the controller concerning this invention. It is a
flowchart which shows operation of the marker input which is embodiment of the controller
concerning this invention.
[0009]
The parameter control method of the present invention is performed by a controller according to
an embodiment of the present invention. Hereinafter, a controller according to an embodiment of
the present invention for executing the parameter control method of the present invention will
be described. A diagram showing the configuration of a system in which a controller according to
an embodiment of the present invention is connected to a PC (personal computer) is shown in
FIG. In the system shown in FIG. 1, application software called DAW (Digital Audio Workstation)
is installed on the PC 1 for editing music data and producing music, and implementing an audio
processing function such as adding effects and mixing to the PC 1. It is done. The PC 1 is a
general-purpose personal computer that starts up the DAW 1a, and activating the DAW 1a in the
PC 1 realizes an audio signal processing function such as recording and reproduction of an audio
signal or music production. The PC 1 includes a mouse 3 which is a pointing device for operating
the PC 1, a keyboard 4 which is an input device for performing an operation such as character
input to the PC 1, an electronic musical instrument 5, a digital mixer 6 and a speaker 7. It is
connected. Audio signals from the electronic musical instrument 5 and the digital mixer 6 can be
input to the DAW 1 a, and audio signals output from the DAW 1 a can be supplied to the speaker
7. By operating the mouse 3 and the keyboard 4 connected to the PC 1, the application such as
the DAW 1a can be operated. Further, a controller 2 according to the present invention dedicated
to the DAW for operating the DAW 1 a is connected to the PC 1. For example, the controller 2 is
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connected to the PC 1 via USB (Universal Serial Bus).
[0010]
The block diagram which shows the hardware constitutions of the controller 2 concerning the
Example of this invention is shown in FIG. As shown in FIG. 2, a CPU (Central Processing Unit) 20
in the controller 2 executes a management program (OS: Operating System), and controls the
overall operation of the controller 2 on the OS. The controller 2 includes a non-volatile ROM
(Read Only Memory) 21 storing the operation program of the controller 2 and various data, and
a RAM (Random Access Memory) 22 storing the work area of the CPU 20 and various data. . The
communication I / F 23 is a communication interface for connecting the controller 2 to the PC 1,
and is an interface such as USB or Ethernet (registered trademark). A signal corresponding to the
operation of the controller 2 is transmitted to the PC 1 through the communication I / F 23, and
a signal corresponding to the operation state of the DAW 1a is received from the PC 1. Further,
the controls 25 are a plurality of switches and sliders provided on the panel of the controller 2,
and the functions of the DAW are associated with the respective controls. The detection circuit
24 is a detection circuit that scans the operating element 25 to detect the operating element or
the operating mode. An instruction to execute the target function of the DAW 1 a is output from
the communication I / F 23 according to the operation of the detected operation element. The
display 27 is an LED provided inside each operating element, and the display circuit 26 lights
and extinguishes the LED as the display 27 according to the operation of the operating element
or according to the signal received from the DAW. , Is a circuit that performs lighting control
such as blinking. Each part is connected to the bus 28.
[0011]
Next, the configuration of the panel of the controller 2 according to the embodiment of the
present invention is shown in FIG. As shown in FIG. 3, the controller 2 is a small-sized controller
of such a size as to be held by one hand and operated by the other hand, and various controls 25
are provided on the panel of the controller 2. Nine switches SW1 to SW9 arranged in three rows
and three columns from the upper part to the central part and three switches SW10 to SW12
arranged in one line at the lower part start / stop playback, fast forward, rewind, It is a switch
that controls playback such as loop playback on / off and recording on / off, and performs
editing operations such as creating a new track and inserting data. The switches SW1 to SW12
incorporate LEDs, and are turned on / off in accordance with the operation state of the switches
SW1 to SW12 and the state of the DAW 1a. Under the switches SW7 to SW9, a slider 2a formed
of a laterally elongated rectangular touch pad is disposed. The slider 2a can be used by assigning
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one of the functions for controlling the playback position, playback speed, and the like. For
example, when the function of controlling the reproduction position is assigned, the location bar
on the DAW 1a moves in accordance with the operation on the slider 2a. In addition, the slider
2a is configured to execute different processing depending on the operation mode, and the DAW
screen displayed on the PC 1 is enlarged or reduced separately from the control of the
reproduction position and the reproduction speed described above. Control can be performed.
The slider 2a incorporates a plurality of LEDs 2b arranged in a line in the lateral direction, and
the lighting position of the LED 2b changes according to the function assigned to the slider 2a
and the operation state of the DAW 1a. Furthermore, under the slider 2a, a mode changeover
switch 2c capable of switching the function performed by the slider 2a is disposed. By operating
the slider 2a while pressing the mode switching SW 2c, it is possible to switch the function to be
executed when the slider 2a is operated. Further, an LED is built in the mode switching switch 2c,
and while the mode switching switch 2c is pressed, the built-in LED is lit.
[0012]
As an operation mode of the slider 2a in the controller 2, an operation of the first mode in which
the sliding operation is a sliding operation of sliding the slider 2a on the slider 2a with one
finger, and a pinch of opening and closing two fingers on the slider 2a There is an operation of
the second mode to be operated. An example of the operation of the first aspect is shown in FIG.
4 and an example of the operation of the second aspect is shown in FIG. FIGS. 4 and 5 show the
DAW screen 30 displayed on the display when the DAW software is started on the PC 1. The
DAW screen 30 is provided with an area for displaying music data of music, and in this display
area, performance data and music of a plurality of tracks (Track 1, Track 2, Track 3, Track 4, ...)
The waveform is displayed. The music data is generally composed of a plurality of parts such as a
melody part and an accompaniment part, and each part includes one or more tracks. Track 1 and
Track 2 are tracks of performance data such as MIDI, and Tracks 3 and 4 are tracks of musical
waveforms such as vocals. In the display area of the track, a location bar 31 indicating the
playback position is displayed. When the play button is pressed, each track is played from the
position of the location bar 31, and when the playback progresses, the location bar moves to the
right in accordance with the playback position. Further, in the display area of the track, positions
indicating bars and beats are displayed by vertical broken lines.
[0013]
In the operation of the first mode shown in FIG. 4, when the locate function to move the location
bar 31 indicating the playback position is assigned to the slider 2 a, the one finger 32 slides on
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the slider 2 a in the lateral direction. It is considered to be an operation. In this case, the location
bar 31 (reproduction position) moves in accordance with the slide operation. For example, when
sliding one finger 32 on the slider 2a from left to right, the controller 2 instructs the position bar
31 (reproduction position) at the position a to move to the position b to the right of the position
a. Is transmitted to the PC 1 through the communication I / F 23 of FIG. As a result, the location
bar 31 (reproduction position) is moved to the position b and displayed. In addition, when one
finger 32 on the slider 2a is slide operated from right to left, an instruction to move the position
of the location bar 31 (reproduction position) to the left is transmitted to the PC 1 through the
communication I / F 23 of the controller 2 Be done. As a result, the location bar 31 (reproduction
position) is moved to the left of the current position and displayed. As described above, although
the moving direction of the location bar 31 changes according to the moving direction of the
finger 32, the moving speed and moving amount of the location bar 31 change according to the
moving speed and the changing amount of the finger 32. When another function is assigned to
the slider 2a, when the slider 2a is slide-operated by one finger 32, a process according to the
assignment function is performed.
[0014]
The operation of the second mode shown in FIG. 5 is a case where pinch operation is performed
on the slider 2 a using two fingers 32. In this case, when the two fingers 32 are opened
(expanded) as shown in the figure, the performance data of the track displayed in the area C of
the screen and the portion of the music waveform are shown in the horizontal direction as shown
by the arrows. An instruction to expand is transmitted to the PC 1 through the communication I /
F 23 of the controller 2. As a result, the time axis in the horizontal direction in the range C of the
DAW screen 30 is expanded, and the interval of the broken line indicating the beat position is
expanded as illustrated, and the details of the waveform form are displayed in the music
waveform. Then, according to the speed and amount of movement of the finger 32, the speed of
enlargement and the enlargement ratio change. In addition, when the two fingers 32 are closed
(close), an instruction to reduce the performance data of the track displayed in the area of the
range C on the screen or the music waveform in the horizontal direction is the communication I /
F 23 of the controller 2 Are sent to PC1. As a result, the time axis in the horizontal direction in
the range C of the DAW screen 30 is reduced and displayed. In the second mode, the screen is
zoomed in or out according to the pinch operation regardless of the function currently assigned
to the slider 2a and the presence or absence of the operation of the mode switching switch 2c.
[0015]
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Next, when the slider 2a of the controller 2 according to the present invention is operated, a
flowchart of a slider operation process executed by the controller 2 is shown in FIG. When the
operation on the slider 2a is detected in the detection circuit 24, the slider operation process
shown in FIG. 6 is started, and it is determined whether one or two positions of the slider 2a are
operated in step S10. . When one position of the slider 2a is operated, it is determined that the
slide operation (the operation of the first mode) is performed, and the process branches to step
S13. When two positions of the slider 2a are operated, the pinch operation (the second mode Is
determined to have been performed, and the process proceeds to step S11. In step S11, a change
between two operation points is detected. An instruction to zoom in or zoom out the DAW screen
30 is transmitted to the PC 1 through the communication I / F 23 in step S12 according to the
change speed and change amount of the distance between two points detected in step S11. In
this case, when a pinch out operation of opening two fingers is performed, it is detected that the
distance between the two points is expanded, and an instruction to expand the area C of the
range C of the DAW screen 30 is transmitted to the PC 1. When the pinch-in operation for
closing the finger is performed, it is detected that the distance between the two points is reduced,
and an instruction to reduce the area C of the range C of the DAW screen 30 in the lateral
direction is transmitted to the PC1. The PC 1 receives an instruction according to the change
direction of the distance between two points, the change speed, and the change amount, and in
response to this instruction, the area C of the range C of the DAW screen 30 is enlarged /
reduced in size and displayed.
[0016]
Thereby, the area C of the range 30 of the DAW screen 30 is expanded (when the two fingers are
opened) or reduced (regardless of whether the function currently assigned to the slider 2a or the
operation of the mode switching SW 2c is present or not). When two fingers are closed)) If it is
determined that two points have been operated, the distance between the two points does not
change (for example, two fingers are operated in parallel) since control is performed depending
on whether the distance between the two points approaches or goes away. ), The zoom function
does not work. When three or more points are touched, only the two points from the earlier one
in the touch order are recognized, and the third and subsequent points are ignored. Furthermore,
when it is determined that two places have been operated (when pinching two fingers), there is
no change in lighting of the LED 2b according to the operation.
[0017]
In step S13, which is determined to have been operated at one location and branched, it is
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determined whether it is an operation while pressing the mode switching SW 2c or only an
operation of the slider 2a. Here, if it is determined that only the slider 2a is operated without
pressing the mode switching SW 2c, the process proceeds to step S14, and the function currently
assigned to the slider 2a is confirmed. Here, it is assumed that the confirmed function is a locate
function for moving the location bar 31. In this case, the direction, speed and amount of
operation of the slider 2a are detected in step S15, and the instruction to move the location bar
31 according to the direction, speed and amount of operation of the slider 2a detected in step
S15 Are transmitted to the PC 1 through the communication I / F 23 in step S16. The PC 1
moves the location bar 31 on the DAW screen 30 according to the received instruction of the
operation content. When a function different from the locate function of moving the location bar
31 is assigned to the slider 2a, processing according to the function assigned in step S16 is
performed. Then, in step S17, the lighting state of the LED 2b is controlled according to the
function currently assigned to the slider 2a and the state of the DAW 1a.
[0018]
If it is determined in step S13 that the slider 2a is operated while pressing the mode switching
switch 2c, the process proceeds to step S18, and the function assigned to the slider 2a is
switched according to the position when the finger is released from the slider 2a. The contents
set here are stored in the RAM 22 and become effective the next time the slider 2a is operated in
the first mode. Then, one of the LEDs 2b inside the slider 2a is blinked in step S19 in accordance
with the function assigned in step S18. For example, when the function A is assigned, the LED 2b
located approximately at the center of the area A shown in FIG. 7 blinks. When the process of
step S12, step S17 or step S19 ends, the slider operation process ends.
[0019]
Here, an example of the function assigned to the slider 2a will be described. In this example, four
functions A, B, C and D are prepared as functions assigned to the slider 2a, and can be switched
to any of the four functions. A function A is a locate function, and can move the location bar 31
(reproduction position) on the DAW screen 30 to the left or right according to the direction,
speed, and operation amount of the slide operation of the slider 2a. While moving, music data is
not reproduced. If the location bar 31 is moved during the music reproduction, the reproduction
is interrupted during the movement, and the reproduction is resumed when the movement
operation is finished. The amount of slide operation and the amount of movement of the location
bar on the screen are constant regardless of the screen magnification, and the location bar is 1.5
times the screen display width when the slider is operated from the left end to the right end Go
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from left to right. In other words, if only one measure is displayed on the screen, the location bar
will advance up to 1.5 measures at the maximum by one slide operation, but if 20 measures are
displayed on the screen, it can be advanced by 30 measures with one operation. it can. That is,
when the location bar 31 is moved in a state where the screen is shrunk, it moves quickly to the
beginning or the end of the music. When the locate function is assigned to the slider 2a, the LED
2b from the left end of the LED 2b to the LED 2b corresponding to the position of the location
bar 31 with respect to the length of the entire music is lighted. For this reason, if the slide
operation is performed on the slider to move the location bar, or the music is played back to
move the location bar, the number of lighting of the LEDs changes. A function B is a jog function,
and the jog wheel on the DAW rotates in accordance with the direction and amount of slide
operation of the slider 2a. In accordance with the rotation angle of the jog wheel, the music data
is slow-reproduced between 0 × (reproduction stop) and 1 × (equal velocity), and the location
bar 31 moves according to the reproduction position. The rightward rotation is forward
reproduction, the leftward rotation is reverse reproduction, and the larger the rotation angle, the
faster the reproduction speed. However, when the constant speed is reached, the reproduction
speed does not change even if the jog wheel is rotated. When the slide operation is performed
from the left end to the right end of the slider 2a, the jog wheel rotates 180 ° clockwise. The
LED 2b corresponding to the position is turned on to display the rotation angle of the jog wheel
on the DAW. That is, a rotation angle of 0 to -180 corresponds to the left half of the LED 2b, and
0 to 180 corresponds to the right half of the LED 2b. When the lit LED 2b reaches the right end,
it moves to the left end.
The lighting state of the LED 2b is not affected by the screen magnification.
[0020]
A function C is a shuttle function, and the shuttle wheel on the DAW rotates in accordance with
the direction and amount of slide operation of the slider 2a. The shuttle wheel rotates in the left
and right directions in the range of 0 to 135 °, and the music data is fast-forwarded reproduced
between 0x (reproduction stop) and 4x according to the rotation angle, and the location bar 31
according to the reproduction position Move. The rightward rotation is forward reproduction,
and the leftward rotation is reverse reproduction, and the larger the rotation angle, the faster the
reproduction speed. When the slide operation is performed by a half of the width of the slider 2a
(for example, from the center to the right end), the shuttle wheel rotates 135 degrees. For
example, when operating from the left end to the right end with a further operation amount, only
135 ° is rotated. In addition, LED2b of the number corresponding to the rotation amount of a
shuttle wheel is lighted so that the rotation angle of the shuttle wheel on DAW may be displayed.
That is, the LEDs 2b up to the position corresponding to the operation amount are lighted from
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the central LED as a starting point. A rotation angle of 0 to 135 ° corresponds to the LED 2b of
the right half, and 0 to -135 ° corresponds to the LED 2b of the left half. The starting point of
the operation does not have to be at the center of the slider 2a, and the LED 2b lights up from
the center at any position. When the finger is released from above the slider 2a, only the central
LED lights up because the shuttle wheel returns to the center. The lighting state of the LED 2b is
not affected by the screen magnification. A function D is a scroll function, and the screen is
scrolled in the time axis direction according to the direction, speed, and operation amount of the
slide operation of the slider 2a. The location bar 31 does not move and the playback speed does
not change. The amount of operation and the amount of scroll movement on the screen are
constant regardless of the enlargement factor of the screen, so if you scroll in the state where the
screen is shrunk, you can move quickly to the beginning or end of the song. The LED 2b is turned
on according to the current size and position of the scroll bar with respect to the screen width of
the DAW.
[0021]
As shown in FIG. 7, the area of the slider 2a is divided into four areas of the area A, the area B,
the area C, and the area D as many as the number of functions to be allocated. Then, by pressing
the mode switching SW 2 c and touching the area A, the function A is assigned to the slider 2 a.
Similarly, by pressing the mode switching SW 2 c and touching the area B, the area C or the area
D, the function B, the function C or the function D is assigned to the slider 2 a. As described
above, by pressing one of the areas A to D while pressing the mode switching SW 2 c, the
function of the slider 2 a can be switched to the function corresponding to the touched area.
Then, while the mode switching SW 2 c is pressed, the LED 2 b located approximately at the
center of the areas A to D corresponding to the function assigned to the slider 2 a blinks. As a
result, by pressing the mode switching switch 2c, it is possible to confirm what function is
currently assigned to the slider 2a.
[0022]
Next, an operation of inputting a marker to music data will be described as an embodiment of the
controller 2 according to the present invention. The operation of marker input is shown in the
flowchart of FIG. The marker is a function of marking a specific position in the music, and can be
reproduced immediately from the marked position. When the music data is composed of "Intro",
"1st Melody (A Melo)", "2nd Melody (B Melo)", "Sabi", "Interplay" and "Ending" sections It is
convenient to input a marker at a position, and in the marker input operation, it is possible to
input a marker at each of the above-mentioned dividing positions. The marker is input to the
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current position of the location bar 31 when the switch SW1 of the controller 2 is pressed. In
other words, in the flow of marker input work, first move the location bar 31 to the vicinity of the
position where you want to input the marker, and then to the exact position where you input the
marker while watching the waveform or slow playback to hear the sound. The location bar 31 is
moved, and the switch SW1 is pressed to input a marker. Therefore, confirm that the locate
function is set to the slider 2a, and perform the pinch operation on the slider 2a so that the
location bar 31 can be moved immediately to the target position where you want to input a
marker. The area C is horizontally expanded or reduced (step S20). For example, if A melody
starts after 8 bars of intro, move the location bar 31 around 6 bars and then start playback so
that you can reach the first marker input position, A melody start position, immediately In order
to move the location bar to one bar, you can move it to the sixth bar. Next, the location bar 31 is
moved to the vicinity of the target position by performing a slide operation on the slider 2a (step
S21).
[0023]
Then, by pushing the switch SW11 of the controller 2, the reproduction is started from the
position of the location bar 31 set in the step S21 (step S22), and the reproduction is advanced to
reach the position where the marker is to be input (step S23). Here, while pressing the mode
switching switch 2c, the area B of the slider 2a is touched to switch the function of the slider 2a
to the jog function (step S24). Next, by sliding the location bar 31 that has reached the vicinity of
the target position by performing the operations of step S25 to step S27 on the slider 2a having
the jog function, the vicinity of the target position is slowly moved back and forth While moving,
the marker input position is determined by pinpoint. In this step S25, in order to determine the
marker input position while looking at the music waveform displayed on the DAW screen 30, the
music waveform displayed by performing a pinch out operation of opening two fingers on the
slider 2a Expanding. In step S26, the slide operation is performed on the slider 2a having the jog
function while watching the expanded music waveform to perform slow reproduction, and the
optimum marker position is determined from both the reproduced sound and the music
waveform. It is possible to determine the position of the musical break more strictly as the
marker position by setting the place where the amplitude of the music waveform is the smallest
as the break position as well as being a good break when listening by ear. In step S27, it is
determined whether the marker input position can be identified by pinpointing. Since the range
is narrowed while gradually increasing the enlargement factor of the displayed music waveform,
the operations of step S25 to step S27 are repeated.
[0024]
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When the marker position is determined, the marker input operation is performed. In this
operation, the switch SW1 of the controller is pressed to input a marker at the current position of
the location bar 31 (step S28). As marker names at the time of input, initial values such as
"marker 1", "marker 2", etc. are set in the order in which the markers are input. Then, it is
determined whether or not the marker input in step S28 is the last marker (step S29). Here, if it
is determined to be the last marker, marker input is terminated. If it is not the last marker, the
process proceeds to step S30 to input the next marker. In step S30, the function of the slider 2a
is switched to the shuttle function by touching the area C of the slider 2a while pressing the
mode switching SW 2c.
[0025]
Next, in steps S31 to S33, an operation is performed to advance the location bar 31 to the
vicinity of the input position of the next marker. I would like to advance to the next marker
position, which is several bars away, but now the music waveform is in a considerably expanded
state by the scaling operation performed in step S25, so the screen where the location bar 31 is
displayed to shrink. In addition, since it is conceivable that the tune changes at the next marker
input position (for example, "B melody"), it is efficient to move the location bar 31 at high speed
while listening to the reproduced sound. In this step S31, a pinch-in operation is performed to
close two fingers on the slider 2a so as to reduce the area of the range C in the DAW screen 30 in
the horizontal direction. The reduction rate may be such that the next input position can be
checked by turning over the music, but at this point the "next marker input position" is unknown,
so it may be reduced so that about a few bars are displayed for the time being. In step S32, by
sliding on the slider 2a having the shuttle function, the location bar 31 is advanced to the vicinity
of the target position while performing fast forward reproduction. Here, if it is determined that
the screen should be further reduced or enlarged (step S33), the process returns to step S31,
makes an appropriate enlargement factor, performs a shuttle operation in step S32, and moves
the location bar to the vicinity of the next marker input position. Advance 31 Thereafter, the
process returns to step S23, and the above-described operations of steps S24 to S33 are repeated
until it is determined that the marker is the last in step S29. Thus, a marker can be input at a
predetermined position of music data, and can be reproduced from the position of the selected
marker.
[0026]
The operations in steps S20, S24 to S26, and S30 to S32 described above are all slide operations
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and pinch operations on the slider 2a, and the user does not need to move the position of the
hand from the slider 2a. Can also operate. Therefore, necessary editing operations can be
performed while watching the DAW screen 30. In particular, in steps S25 to S26 and steps S31
to S32, it is necessary to repeat the scaling operation and the movement operation of the location
bar 31 many times until the location bar reaches the target position. The ability to concentrate
on listening to the sound and watching the music waveform on the screen is better without doing
it. As described above, during editing of music data using the controller 2, the operation of
scaling and the operation of moving the location bar 31 are repeated many times frequently
while being combined with slow playback or fast forward playback. Since the operation can be
performed by the slide operation and the pinch operation on the slider 2a, the editing work can
be efficiently performed while focusing on the music waveform on the screen without moving the
eyes to the hand.
[0027]
The controller according to the present invention for executing the parameter control method of
the present invention has been described above. Although the slider in the controller of the
present invention is composed of the touch pad, the present invention is not limited to this, and
the slider can be realized by a physical slider, knob, or button. For example, as a [<] [>] button
corresponding to the movement operation of the location bar, the screen can be enlarged or
reduced by simultaneously pressing or holding two buttons, or in combination with other
buttons. Also, when zooming the screen with the controller of the present invention, instead of
scaling in the horizontal direction (time axis direction), scaling in the vertical direction or scaling
in both the vertical and horizontal directions is performed. You may do so. Furthermore, the
function assigned to the slider of the controller of the present invention may be a function not
related to the movement of the location bar. For example, it may be anything that corresponds to
the function of the DAW, such as volume and pan changes, tempo change, and tap tempo
function (the tempo is changed by tapping on the slider).
[0028]
1 PC, 1a DAW, 2 Controller, 2a Slider, 2b LED, 2c Mode Switch, 3 Mouse, 4 Keyboard, 5
Electronic Musical Instrument, 6 Digital Mixer, 7 Speaker, 20 CPU, 21 ROM, 22 RAM, 23
Communication I / F, 24 detection circuit, 25 operators, 26 display circuits, 27 displays, 28
buses, 30 DAW screens, 31 location bar, 32 fingers, SW1 to SW12 switches
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