JP2016058123A - Reproduction control device, control method for reproduction control device, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reproduction control device, a control method of the reproduction control device, and a program capable of obtaining a satisfactory operation result without increasing costs in the case of using one operator for a plurality of types of operations.SOLUTION: A DJ controller 2 to which a reproduction control device is applied is configured to perform the reproduction control of a musical piece in accordance with the rotational amount of a jog dial 25, and to determine whether or not a backspin operation has been performed in accordance with the rotational speed and rotational acceleration of the jog dial 25, and to, when determining that a backspin operation has been performed, perform special reproduction control independent of the rotational amount of the jog dial 25 from a point of time when the rotational speed of the jog dial 25 exceeds a predetermined speed threshold.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a playback control apparatus that controls playback of content in accordance with the amount of displacement of an operator, a control method for the playback control apparatus, and a program.

  In recent years, an increasing number of users enjoy DJ play easily using a PC and a DJ controller. Many DJ controllers are equipped with a jog dial for operating a platter on the PC (DJ application) side. When a jog dial is operated, a normal DJ controller outputs a MIDI code corresponding to the rotation speed and rotation amount of the jog dial. The PC side receives the MIDI code, rotates the platter, and moves the waveform display of the music.

  Incidentally, one of the DJ plays is an operation called “back spin”. Backspin is an operation that produces a sound like rewinding a record quickly by rotating the jog dial at a high speed, and is often used for connecting songs. If the jog dial is not fully rotated, the backspin sound will be shortened and mixing will fail. Therefore, it is necessary to make the weight of the jog dial light to some extent (to reduce the rotational load) in order to enable sufficient rotation by the backspin operation.

  On the other hand, there is an operation called “scratch” as one of DJ plays. Scratching is an operation that produces a sound like rubbing a record by moving the jog dial back and forth, and is used at the beginning of cut-in (one of the mixing techniques; a technique that connects the previous song to the next song at once) Often used as a performance. In the scratch operation, it is necessary to move the playback position from a specific position of the music and return it to that position accurately. Therefore, if the jog dial is too light for the above-mentioned backspin, the operation is difficult. Therefore, in order to facilitate the scratch operation, it is necessary to make the weight of the jog dial somewhat heavy (increase the rotational load).

  As described above, the user has two contradicting needs for the jog dial: a need for a light jog dial that is easy to perform a backspin operation and a need for a heavy jog dial that is easy to perform a scratch operation. As a solution that satisfies this need, a technique is known in which a load adjustment function (a function for adjusting the magnitude of a rotational load) is mounted on a jog dial (for example, Patent Document 1).

International Publication No. 2006/103904

  However, when the load adjustment function is installed as in Patent Document 1, there is a demerit that the cost of the DJ controller is significantly increased. Thus, when one operator is used for a plurality of types of operations, it is difficult to improve operability with only a physical mechanism.

  In view of the above-described problems, the present invention provides a reproduction control apparatus and a reproduction control apparatus control method capable of obtaining good operation results without increasing costs when a single operator is used for a plurality of types of operations. And to provide a program.

  The playback control device of the present invention includes a playback control unit that controls playback of content according to the displacement amount of the operation element, and a predetermined operation performed by the operation element according to the speed and / or acceleration of the displacement amount of the operation element. A discriminating unit that discriminates whether or not it has been performed, and when the discriminating unit determines that a predetermined operation has been performed, the reproduction control unit starts from a point in time when the speed of the operator exceeds a predetermined speed threshold. Special reproduction control is performed without depending on the displacement of the operation element.

  In the above reproduction control apparatus, the determination unit detects that the acceleration of the operating element has exceeded a predetermined acceleration threshold value within a predetermined time after the start of the displacement of the operating element, and thereafter, the speed of the operating element is set to a predetermined speed. When it is detected that the threshold value has been exceeded, it is determined that a predetermined operation has been performed.

  In the above reproduction control apparatus, the reproduction control unit varies the control period of the special reproduction control in accordance with the maximum speed of the operation element.

  In the above reproduction control device, the operation element is configured to start displacement in an arbitrary direction by applying a force in an arbitrary direction after being touched by the user, and to perform an inertial movement after the touch is released. To do.

  In the above reproduction control apparatus, the reproduction control unit performs special reproduction control on condition that the touch on the operation element is released.

  In the above reproduction control device, the reproduction control unit ends the special reproduction control when detecting a touch on the operation element during the special reproduction control.

  In the reproduction control apparatus, the operation element is a rotary operation element, and the determination unit determines whether or not a spin operation is performed by the rotation operation element.

  In the above-described reproduction control device, the special reproduction control is for performing extension control of the spin period based on the spin operation, and further includes a spin time adjustment unit that adjusts the spin time that is the length of the spin period. To do.

  The playback control device further includes a playback state display unit that displays a playback state of content by the playback control unit, and the playback state display unit displays a spin state based on the spin operation when the spin operation is performed. It is characterized by that.

  According to the control method of the playback control apparatus of the present invention, a playback control step for performing playback control of content according to the displacement amount of the operation element, and a predetermined amount by the operation element according to the speed and / or acceleration of the displacement amount of the operation element. A determination step for determining whether or not the operation has been performed, and the reproduction control step determines that the predetermined operation has been performed in the determination step, the speed of the operation element has a predetermined speed threshold value. A special regeneration control that does not depend on the amount of displacement of the operation element is performed from the time when it exceeds.

  A program according to the present invention causes a computer to execute each step in the control method of the reproduction control apparatus.

It is a block diagram which shows the structure of the reproduction | regeneration system which concerns on one Embodiment of this invention. It is a top view of DJ controller. It is a figure which shows an example of the MIDI curve corresponding to the rotation amount of a jog dial at the time of backspin operation. It is a figure which shows an example of the ideal MIDI curve at the time of backspin operation. It is a figure which shows several types of MIDI curves from which a backspin time differs. It is a figure which shows an example of the MIDI curve corresponding to the rotation amount of the jog dial at the time of a scratch operation. It is a flowchart which shows the flow of the MIDI signal transmission process in a DJ controller. 10 is a flowchart showing a flow of MIDI signal transmission processing according to Modification 1; It is a figure which shows a MIDI curve in case the backspin rate which concerns on the modification 1 is slow. FIG. 10 is a diagram showing a MIDI curve when the backspin rate is faster than the example of FIG. 9. It is a figure which shows a MIDI curve in case back spin speed is faster than the example of FIG. It is a figure which shows a MIDI curve in case back spin speed is faster than the example of FIG.

  Hereinafter, a reproduction control apparatus, a reproduction control apparatus control method, and a program according to the present invention will be described in detail with reference to the accompanying drawings. In this embodiment, the case where the reproduction control apparatus of the present invention is applied to a DJ controller will be exemplified.

  FIG. 1 is a block diagram showing a configuration of a playback system SY according to an embodiment of the present invention. The reproduction system SY includes a personal computer (hereinafter referred to as “PC”) 1 and a DJ controller 2. The PC 1 and the DJ controller 2 are connected via a network such as a LAN, a cable, or a dedicated line. Further, the connection form may be either wired connection or wireless connection.

  The PC 1 includes a control mechanism 11, a display 12, a keyboard 13, a mouse 14, a hard disk drive (hereinafter referred to as “HDD”) 15, and a communication interface (hereinafter referred to as “communication I / F”) 16.

  The control mechanism 11 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory), and comprehensively controls the PC 1. The HDD 15 stores a DJ application 40. The DJ application 40 is software for performing DJ play, and displays an operation state (including a platter reflecting the operation of the jog dial 25) of the DJ controller 2 described later, a music waveform, and the like. The DJ application 40 performs signal processing based on the operation signal input from the DJ controller 2, and outputs a processed signal (including an audio signal and a control signal) to the DJ controller 2.

  The display 12 displays various information such as an operation screen of the DJ application 40. The keyboard 13 and the mouse 14 are used for operation and setting of the DJ application 40. The communication I / F 16 is an interface for communicating with the DJ controller 2 and is mainly used for transmission / reception of MIDI (Musical Instruments Digital Interface) signals in this embodiment.

  On the other hand, the DJ controller 2 includes a control mechanism 21, a fader / knob group 22, an audio output unit 23, a communication I / F 24, a jog dial 25, and a storage unit 26. The “reproduction control unit” and the “determination unit” in the claims mainly include the control mechanism 21 and various control programs and control data stored in the storage unit 26.

  The control mechanism 21 includes a CPU, a ROM, and a RAM, and controls the DJ controller 2 in an integrated manner. The fader / knob group 22 is a group of operators for performing DJ play, and is used for music performance browsing, DJ mix control such as tempo adjustment and volume adjustment, and operation of performance functions such as effects (sound effects). The audio output unit 23 outputs an audio signal input from the PC (DJ application 40) to a speaker or headphones (not shown).

  The communication I / F 24 is an interface for communicating with the PC 1, and is used for transmitting a MIDI signal indicating rotation information of the jog dial 25 and receiving a MIDI signal indicating position information of the jog dial 25.

  The jog dial 25 is used for adjusting the reproduction speed of the music (pitch bend), fast-forwarding / fast-rewinding (search), scratching, and the like. The jog dial 25 includes a jog main body 51, a rotation mechanism 52, and an LED display unit 53. The jog main body 51 indicates a top plate and its side surface that are actually touched and operated by a user, and has a touch sensor incorporated therein. The rotation mechanism 52 is a mechanism for making the jog main body 51 rotatable in the left-right direction, and includes several hundreds of slits (grooves) and a photo interrupter for measuring the amount of rotation. The control mechanism 21 measures how many slits have passed per unit time using the photo interrupter, and converts the passage amount of the slits per unit time into a MIDI signal. For example, when the jog dial 25 is moved slowly, the amount of passage of the slit per unit time is reduced, so that a small value of MIDI is transmitted. Conversely, when the jog dial 25 is moved quickly, the amount of passage of the slit per unit time increases, so a large value of MIDI is transmitted. Further, when the rotation of the jog dial 25 stops, the passage of the slit is lost, so that no MIDI signal is output. Note that the rotation mechanism 52 of the present embodiment sets a large rotation load in consideration of the operability of “scratch operation (operation for generating a scratching sound by quickly moving the jog dial 25 back and forth)”. For this reason, there is a problem that the spin time (the amount of rotation) is insufficient at the time of “backspin operation (operation for generating a rewinding sound by rotating the jog dial 25 backward at high speed)”. Therefore, in order to solve this problem, the control mechanism 21 according to the present embodiment performs control for continuously transmitting the MIDI signal as if the jog dial 25 is rotating even if the rotation of the jog dial 25 is stopped during the backspin operation. Do. Hereinafter, such reproduction control ignoring the rotation of the jog dial 25 is referred to as “special reproduction control”.

  On the other hand, the LED display unit 53 is provided at the center of the jog dial 25 (see FIG. 2), and displays the playback state of the music and the current playback position based on the position information of the jog dial 25 output from the DJ application 40. (Playback status display section). By mounting the LED display unit 53, the user can grasp the spin state when the backspin operation is performed. Further, since the reproduction position can be visually confirmed, the scratch performance can be performed accurately. Note that the rotation of the jog dial 25 during the backspin operation and the change in the reproduction position displayed on the LED display unit 53 (see the ring-shaped image 53a in FIG. 2) do not necessarily match.

  The LED display unit 53 may be provided not on the central part of the jog dial 25 but on the outer peripheral part of the jog dial 25. Further, the LED display unit 53 may be omitted from the jog dial 25. Further, the LED display unit 53 may be provided at another position on the DJ controller 2 instead of near the jog dial 25.

  The storage unit 26 stores various control programs and control data in a nonvolatile memory. As a control program, a MIDI control program 45 and a display control program 46 are stored. The MIDI control program 45 is a program for determining the operation of the jog dial 25 and generating a MIDI signal based on the determination result. Specifically, it is determined whether or not the operation of the jog dial 25 (operator) is a “backspin operation” (determination unit). If it is determined that the operation is a “backspin operation”, the amount of rotation of the jog dial 25 is determined. A MIDI signal is generated by special reproduction control that is reproduction control independent of (displacement amount) (reproduction control unit). On the other hand, if it is determined that the operation is not “backspin operation”, the MIDI signal is generated by the normal reproduction control which is the reproduction control corresponding to the rotation amount of the jog dial 25. The determination method will be described later.

  On the other hand, the display control program 46 is a program for performing display control of the LED display unit 53. For example, when the “back spin operation” is performed, the spin state of the back spin is displayed based on the MIDI signal indicating the position information of the jog dial 25 input from the DJ application 40. As described above, the special reproduction control is reproduction control that does not depend on the rotation amount (displacement amount) of the jog dial 25, and therefore the rotation of the jog dial 25 and the display on the LED display unit 53 do not match. However, the sound output from the sound output unit 23 is interlocked with the display on the LED display unit 53. Therefore, the user can perform DJ play without a sense of incongruity even if special reproduction control is performed during the backspin operation.

  The storage unit 26 stores a plurality of MIDI tables 47 as control data. Each MIDI table 47 corresponds to a plurality of types of MIDI signal curve characteristics (hereinafter referred to as “MIDI curves”) so that the spin time can be varied in accordance with user preferences and needs (Pc1 to Pc1 in FIG. 5). Pc9). Note that the fader / knob group 22 is used to select the MIDI curve.

  Next, a user interface mounted on the DJ controller 2 will be described with reference to FIG. The DJ controller 2 includes two left and right deck portions 41 and 41 and a mixer portion 42 provided in the middle thereof. A jog dial 25 is provided at the center of each deck portion 41. As described above, the jog dial 25 includes the jog main body 51 serving as a top plate, the rotation mechanism 52 that rotatably supports the jog main body 51, and the LED display unit 53 provided at the center of the jog main body 51. . In the LED display unit 53, the reproduction position is displayed by the cutout part of the ring-shaped image 53a. An operation pad 22a for controlling a DJ performance function (effect, hot cue, sampler, etc.) is provided below the jog dial 25.

  On the other hand, the mixer unit 42 corresponds to a plurality of channels (four channels in the figure), and is provided with a channel-specific operation element group 22c such as an equalizer and a channel fader. In addition, a crossfader 22d for adjusting the mixing ratio of the music loaded on each deck unit 41 is provided at the lower part.

  Next, the MIDI curve control during the backspin operation will be described with reference to FIGS. FIG. 3 is a diagram showing an example of a MIDI curve corresponding to the rotation amount of the jog dial 25 during the backspin operation. This figure shows an example in which a jog dial 25 having a large rotational load is used. In the figure, the vertical axis indicates the MIDI value, and the horizontal axis indicates time. Since the MIDI signal on the vertical axis is considered to be equivalent to the rotational speed of the jog dial 25 (speed of displacement of the operating element), the slope of the MIDI curve represents acceleration (acceleration of the operating element's displacement).

  The backspin operation is an operation of quickly pulling the jog dial 25 forward after touching the jog dial 25 and releasing the hand while maintaining the speed. After the user lifts his hand from the jog dial 25, it continues to rotate for a certain time due to inertia. At this time, since the rotation direction of the jog dial 25 is counterclockwise, the MIDI signal is a negative value. As shown in the figure, since the user accelerates at a stroke from touching the jog dial 25 to releasing his / her hand, the MIDI value changes substantially linearly with a large inclination. Then, the MIDI value (rotational speed of the jog dial 25) becomes maximum at about 100 to 200 ms after the touch, and then the MIDI value approaches zero.

  On the other hand, FIG. 4 is a diagram showing an ideal MIDI curve at the time of backspin operation. That is, the MIDI curve is shown when special reproduction control is performed so that substantially the same result as that obtained when the jog dial 25 having a small rotational load is used is obtained. Compared to FIG. 3, the curve from the maximum value to zero is different. Specifically, in the period of FIG. A after the start of rotation of the jog dial 25 until the rotation speed reaches the maximum, the MIDI signal due to the rotation of the physical jog dial 25, that is, the slits passed per unit time by the photo interrupter. Is transmitted to the PC 1 (normal reproduction control). In the period B from when the rotational speed becomes maximum until the rotational speed becomes almost zero, a MIDI signal (reference numeral Pc) generated regardless of the rotation of the jog dial 25 is used to extend the backspin time. (Special playback control). In this period B, the value stored in the MIDI table 47 is read and transmitted.

  On the other hand, FIG. 5 is a diagram showing a plurality of types of MIDI curves that differ depending on the MIDI table 47. As described above, the MIDI curve (MIDI table 47) for extending the backspin time can be changed by the fader / knob group 22 (spin time adjusting unit). In the same figure, the MIDI curve of the symbol Pc1 indicates the shortest backspin time, and the MIDI curve of the symbol Pc9 indicates the longest backspin time. In the example shown in the figure, nine patterns of MIDI curves Pc1 to Pc9 are shown, but the number of variable patterns may be more or less.

  Next, discrimination between backspin operation and scratch operation will be described. FIG. 6 is a diagram illustrating an example of a MIDI curve corresponding to the rotation amount of the jog dial 25 during the scratch operation. The scratch operation shown in this example is an operation of quickly releasing the hand from the jog dial 25 after touching the jog dial 25 as in the case of the backspin operation. However, the amount of rotation of the jog dial 25 is smaller than that of the backspin operation. . That is, as shown in the figure, the acceleration (slope of the MIDI signal) is almost the same as that in the backspin operation, but the maximum speed value is not as large as in the backspin operation. In this scratch operation in which jog touch and jog release are alternately performed, if the process of extending the backspin time is executed, the scratch cannot be controlled well. Therefore, it is necessary not to perform special regeneration control during the scratch operation.

  Therefore, the control mechanism 21 according to the present embodiment determines that the backspin operation has been executed when the change in MIDI as shown in the period A in FIG. 4 is detected. Usually, since the backspin operation is rotated with a strong force to some extent, the rotation speed of the jog dial 25 increases, and the MIDI value tends to increase (becomes smaller due to reverse spin). Therefore, it is determined that the backspin operation is performed only when the acceleration value changes at a certain acceleration (tilt) and the MIDI value exceeds a predetermined speed threshold value (for example, a value lower than −30 in the example of FIG. 4). Perform special playback control.

  Here, the MIDI signal transmission processing by the DJ controller 2 will be described with reference to the flowchart of FIG. The DJ controller 2 (control mechanism 21) determines whether or not the rotational acceleration of the jog dial 25 exceeds a predetermined acceleration threshold value within a predetermined time T1 from the start of rotation (start of displacement) of the jog dial 25 (S01). When the rotational acceleration of the jog dial 25 exceeds the predetermined acceleration threshold value within the predetermined time T1 (S01: Yes), the jog dial 25 is continuously operated within the predetermined time T2 (where T1 ≦ T2) from the start of the rotation of the jog dial 25. It is determined whether or not the rotational speed exceeds a predetermined speed threshold (S02). In the case of S01: Yes and S02: Yes, the DJ controller 2 determines that the backspin operation has been performed.

  When the DJ controller 2 determines that the backspin operation has been performed (S02: Yes), the PC controller 1 sends a MIDI signal based on the special reproduction control from that time (when the rotational speed of the jog dial 25 exceeds a predetermined speed threshold) to the PC1. It is transmitted to (DJ application 40) (S03). On the other hand, if S01: No or S02: No, the DJ controller 2 determines that an operation other than the backspin operation has been performed, and transmits a MIDI signal based on normal playback control corresponding to the rotation of the jog dial 25 to the PC 1 ( S04).

  Although not specifically shown in the flowchart of FIG. 7, while the MIDI signal based on the special reproduction control is being transmitted, the top surface or the side surface of the jog main body 51 is touched by the user, and the rotation of the jog dial 25 is stopped. In this case, the processing flow of FIG. 7 is interrupted, and a MIDI signal based on normal reproduction control is transmitted to the PC 1.

  As described above, according to the present embodiment, it is determined whether or not the backspin operation has been performed by the jog dial 25, and only when it is determined that the backspin operation has been performed, the special reproduction control for extending the backspin time. Therefore, even when the jog dial 25 having a large rotational load is used, a good backspin sound can be reproduced. Further, since the jog dial 25 having a large rotational load is used, the operability of the scratch operation is not impaired. Moreover, since it is not necessary to mount a load adjustment function for adjusting the rotational load, an increase in cost can be suppressed.

  Further, in the special reproduction control, the MIDI signal is generated using the MIDI table 47, so that it can cope with any MIDI curve and can be easily implemented even when the processing capability of the CPU mounted on the DJ controller 2 is low.

  Further, the backspin operation is performed in order to determine whether or not the backspin operation has been performed in two stages: a change in acceleration within a predetermined time T1 from the start of rotation and a change in speed within a predetermined time T2 from the start of rotation. And other operations (including scratch operations) can be accurately distinguished.

  Further, since the MIDI signal indicating the position information of the jog dial 25 is fed back from the PC 1 (DJ application 40), the backspin state can be displayed on the LED display unit 53. Thus, since the backspin sound and the display of the LED display unit 53 are interlocked, even when the rotation amount of the jog dial 25 is insufficient with respect to the backspin sound, the user does not feel uncomfortable.

In addition, the following modifications can be employed.
[Modification 1]
In the above embodiment, the backspin time (the length of the control period of the special reproduction control) is uniformly extended regardless of the backspin speed at the time of the backspin operation (the maximum rotation speed of the jog dial 25 by the backspin operation). The backspin time may be varied according to the backspin rate. FIG. 8 is a flowchart showing MIDI signal transmission processing according to the first modification. In this modification, after S11 and S12 corresponding to S01 and S02 in FIG. 7, it is determined whether or not the maximum speed of the jog dial 25 has been detected (S13). In S13, it is determined that the maximum speed of the jog dial 25 is detected when the speed increase of the jog dial 25 is completed after the jog dial 25 starts rotating. When the maximum speed of the jog dial 25 is not detected (S13: No), the detection of S13 is repeated until the maximum speed is detected.

  If the maximum speed of the jog dial 25 is detected (S13: Yes), the MIDI signal based on the special reproduction control corresponding to the maximum speed is transmitted to the PC1 (DJ application 40) in order to realize the backspin time corresponding to the maximum speed. (S14). On the other hand, in the case of S11: No or S12: No, the DJ controller 2 determines that an operation other than the backspin operation has been performed, and transmits a MIDI signal based on normal playback control corresponding to the rotation of the jog dial 25 to the PC 1 ( S15). 9 to 12 show changes in the MIDI curve when the backspin rate is gradually increased. In these drawings, the symbol Pn indicates a MIDI curve obtained by the actual rotation of the jog dial 25. A symbol Pc indicates a MIDI curve when the special reproduction control according to the first modification is performed in the period B. As shown in these figures, by increasing the backspin time as the backspin rate increases, the user feels less uncomfortable with the operation, and the operation feeling during backspin is improved. Note that the MIDI curve can be switched in four steps according to the backspin rate as in the examples of FIGS. 9 to 12, and the backspin time can be adjusted in nine steps as shown in FIG. In this case, 36 kinds of MIDI tables 47 are required.

[Modification 2]
In the above embodiment, the MIDI signal is generated by using the MIDI table 47. However, a MIDI signal may be generated by calculation in real time according to a predetermined algorithm by a CPU or DSP (Digital Signal Processor). According to this configuration, even when the MIDI curve is switched or the backspin time can be adjusted in accordance with the backspin rate, there is no fear of increasing the memory, and various MIDI curves can be handled.

[Modification 3]
In the above embodiment, the backspin time can be adjusted by the fader / knob group 22. However, the backspin time may be selected from several stages by the utility setting of the DJ controller 2. Further, the backspin time may be adjustable by the environment setting on the DJ application 40 side.

[Modification 4]
In the above embodiment, when it is determined that the backspin operation has been performed, the special playback control is performed starting from the time when the jog dial 25 reaches the maximum speed, but the touch on the jog dial 25 is released (release). The special reproduction control may be performed on the condition that it is in a state. In this case, after S02 in FIG. 7, it may be determined whether or not the jog main body 51 detects touch, and the process proceeds to S03 only when touch detection is not performed.

[Modification 5]
Alternatively, the special reproduction control may be performed not at the time when the rotation speed of the jog dial 25 exceeds a predetermined speed threshold but at the time when the touch on the jog dial 25 is released. In this case, the backspin operation is determined only by the rotational acceleration (determined that the backspin operation has been performed in the case of S01: Yes), and whether or not the jog main body 51 detects touch instead of S02 in FIG. If the touch is not detected, the process proceeds to S03.

[Modification 6]
In the above embodiment, the predetermined acceleration threshold is exceeded within the predetermined time T1 from the start of the rotation of the jog dial 25, and the predetermined speed threshold is set within the predetermined time T2 (where T1 ≦ T2) from the start of the rotation of the jog dial 25. If it exceeds, it is determined that the backspin operation has been performed. Further, the operation determination may be performed by omitting the condition of the predetermined time T1 and / or the predetermined time T2.

[Modification 7]
In the above embodiment, the backspin operation is mentioned, but the same control may be performed for the spin in the forward direction. For example, when fast-forwarding / fast-rewinding (searching) a song, the jog dial 25 may be spun in the back direction and the forward direction, but a natural selection operation can be performed by applying the special reproduction control of this embodiment. Become.

[Other variations]
Moreover, although the case where the playback control device of the present invention is applied to the DJ controller 2 is illustrated in the above embodiment, the present invention may be applied to a DJ player or an integrated DJ system of a DJ player and a mixer device. Further, the playback control device of the present invention may be applied to playback devices other than those outside the DJ equipment. The target of playback control is not limited to music but may be other content such as video.

  Further, in the above embodiment, the case where the operation element of the present invention is applied to the jog dial 25 is exemplified, but the operation element may be applied to other rotary operation elements. Further, the operation element of the present invention may be applied to an operation element that performs a linear motion (an operation element that is displaced in a linear direction) instead of the rotary operation element. In this case, it may be determined whether or not another predetermined operation is performed instead of the backspin operation. Further, the operation element is not necessarily limited to the one that performs inertial movement, but may be one that stops the displacement after the touch release. Furthermore, the operator of the present invention may be applied not only to a physical operator but also to an image operator (icon or object) displayed as part of a GUI (Graphical User Interface).

  Moreover, it is possible to provide each component of the reproduction system SY (DJ controller 2) shown in the above embodiment and each modification as a program. Further, the program can be provided by being stored in various recording media (CD-ROM, flash memory, etc.). That is, a program for causing a computer to function as each component of the reproduction system SY (DJ controller 2) and a recording medium on which the program is recorded are also included in the scope of the rights of the present invention. Other modifications can be made as appropriate without departing from the scope of the present invention.

  1: PC 2: DJ controller 11: Control mechanism 12: Display 13: Keyboard 14: Mouse 15: HDD 16: Communication I / F 21: Control mechanism 22: Fader / knob group 23: Audio output unit 24: Communication I / F 25: Jog dial 26: Storage unit 40: DJ application 41: Deck unit 42: Mixer unit 45: MIDI control program 46: Display control program 47: MIDI table 51: Jog body 52: Rotating mechanism 53: LED display unit 53a: Ring shape Image SY: Playback system

Claims (11)

A playback control unit that controls playback of content according to the amount of displacement of the operator;
A discriminator for discriminating whether or not a predetermined operation has been performed by the manipulator according to the speed and / or acceleration of the displacement amount of the manipulator,
When the determining unit determines that the predetermined operation has been performed, the playback control unit performs special playback independent of the amount of displacement of the operating element from the time when the speed of the operating element exceeds a predetermined speed threshold. A reproduction control apparatus that performs control.   The determination unit detects that the acceleration of the operating element has exceeded a predetermined acceleration threshold within a predetermined time after the start of displacement of the operating element, and thereafter, the speed of the operating element exceeds the predetermined speed threshold. The reproduction control apparatus according to claim 1, wherein it is determined that the predetermined operation has been performed when it is detected that the excess has been exceeded.   The reproduction control apparatus according to claim 1, wherein the reproduction control unit varies a control period of the special reproduction control according to a maximum speed of the operation element.   4. The operation element according to claim 1, wherein after the touch by the user, a force is applied in an arbitrary direction to start displacement in the arbitrary direction, and an inertial movement is performed after the touch is released. The reproduction | regeneration control apparatus of any one of these.   5. The reproduction control apparatus according to claim 4, wherein the reproduction control unit performs the special reproduction control on condition that the touch on the operation element is released.   6. The reproduction control apparatus according to claim 5, wherein the reproduction control unit ends the special reproduction control when detecting a touch on the operation element during the special reproduction control. The operation element is a rotary operation element,
The reproduction control apparatus according to claim 4, wherein the determination unit determines whether or not a spin operation has been performed by the rotary operation element. The special reproduction control is to perform an extension control of a spin period based on the spin operation,
The reproduction control apparatus according to claim 7, further comprising a spin time adjusting unit that adjusts a spin time that is a length of the spin period. A playback state display unit for displaying a playback state of the content by the playback control unit;
9. The reproduction control apparatus according to claim 7, wherein the reproduction state display unit displays a spin state based on the spin operation when the spin operation is performed. A playback control step for controlling playback of the content in accordance with the amount of displacement of the operator;
A determination step of determining whether or not a predetermined operation has been performed by the operation element in accordance with a speed and / or acceleration of the displacement amount of the operation element; and
In the reproduction control step, when it is determined in the determination step that the predetermined operation has been performed, the special control that does not depend on the displacement amount of the operation element from the time when the speed of the operation element exceeds a predetermined speed threshold. A control method for a playback control apparatus, wherein playback control is performed.   The program for making a computer perform each step in the control method of the reproduction | regeneration control apparatus of Claim 10.

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