JP6291168B2 - INPUT DEVICE, SOUND DEVICE, INPUT DEVICE CONTROL METHOD, AND PROGRAM - Google Patents

Description

  The present invention relates to an input device, an audio device, a control method for an input device, and a program for changing parameters of a predetermined effect such as an audio effect by operating an operator.

  Conventionally, DJ equipment (DJ effector, DJ mixer, DJ player, etc.) is known as this type of audio equipment. For example, Non-Patent Document 1 describes a method of adding various audio effects such as “ECHO” and “NOISE” to an input audio signal. For example, “ECHO” is to output the delay sound several times while attenuating the delay sound according to the beat ratio of the original sound, and the balance between the original sound and the reverberation sound can be changed by operating the main knob. . Further, the delay time of the reverberant sound can be changed by operating the sub parameter 1 knob. Further, the cutoff frequency of the filter can be changed by manipulating the knob of subparameter 2.

REMIX STATION RMX-1000 Manual P.12,16 Pioneer Corporation http://www3.pioneer.co.jp/manual/manual_pdf.php?m_id=8204

  By the way, the DJ who operates the DJ device selects music one after another according to the atmosphere of the floor, and reproduces it without interrupting the sound. In addition to music selection, it is necessary to perform performances such as DJ mixing and scratching, so an interface capable of easily operating various functions is required. However, in the operation method described in Non-Patent Document 1, it is necessary to operate the three operators in order to operate the three parameters related to “ECHO”, and the operation is complicated.

  In view of the above-described problems, an object of the present invention is to provide an input device, an audio device, an input device control method, and a program that can easily operate various functions.

Input device of the present invention includes a detection unit for detecting the first operator of the operation amount and the operation speed at the same time, based on the operation amount, thereby displacing the first parameter of the predetermined effect based on the operating speed, a predetermined effect And a control unit that shifts the second parameter , wherein the first parameter and the second parameter can be set independently of each other .

  In the above input device, the predetermined effect is an audio effect.

  In the above input device, the first parameter is a parameter for changing the effect amount of the audio effect.

  In the above input device, the second parameter is a parameter for changing the period of the reverberant sound added to the audio effect.

In the above input device, the control unit shifts the second parameter so that the period of the reverberant sound is shorter when the operation speed is equal to or higher than the threshold value compared to when the operation speed is lower than the threshold value. Features.

  In the above input device, the operation element is a rotary volume or a slide volume.

  An acoustic device according to the present invention includes the input device described above.

The control method of the input device according to the present invention includes a detection step for simultaneously detecting an operation amount and an operation speed of one operator, a first parameter of a predetermined effect is shifted based on the operation amount, and based on the operation speed, perform a control step of displacing a second parameter of a given effect, the first parameter and the second parameter, and wherein the settable der Rukoto independently of each other.

  A program according to the present invention causes a computer to execute each step in the above-described method for controlling an input device.

It is a block diagram which shows the function structure of the DJ effector to which this invention is applied. It is a top view which shows a part of operation surface of DJ effector. (A) is explanatory drawing of audio effect "FILTER", (b) is explanatory drawing of audio effect "CRUSH". (A), (b) is explanatory drawing of audio effect "JET", (c) is explanatory drawing of audio effect "NOISE". It is explanatory drawing of the audio effect "ECHO".

  Hereinafter, an input device, an audio device, a control method for an input device, and a program according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In this embodiment, the case where the audio equipment (input device) of the present invention is applied to a DJ effector that is a kind of DJ equipment will be exemplified.

  FIG. 1 is a block diagram showing a functional configuration of the DJ effector 1. The DJ effector 1 includes a signal input unit 11, an operation unit 12, a detection unit 13, a control unit 14, an audio signal processing unit 15, and a signal output unit 16. The “input device” in the claims mainly corresponds to the detection unit 13 and the control unit 14 among these functions.

  The signal input unit 11 inputs an audio signal from an external device such as a DJ player. The operation unit 12 includes a rotary knob 21 (operation element) and a button group 22 (see FIG. 2). The rotary knob 21 is composed of a rotary volume and can be rotated to the HI position (MAX) LOW position (MIN) clockwise / counterclockwise with respect to the center click position (state shown in FIG. 2). It has become. The button group 22 includes effect buttons 41, 42, 43, and 44 for adding an audio effect to the input audio signal, and a boost button 45 for switching ON / OFF of the reverberant sound.

  The detection unit 13 includes a knob detection unit 26 (detection unit) that detects an operation of the rotary knob 21 and a button detection unit 27 that detects an operation of the button group 22. The knob detection unit 26 detects the operation amount (rotation amount) and operation speed of the rotary knob 21. Although not particularly illustrated, the knob detection unit 26 detects the operation amount and the operation speed from the voltage value of the variable resistor attached to the rotary knob 21. On the other hand, the button detection unit 27 detects pressing of each button included in the button group 22.

  The control unit 14 issues a processing command to the audio signal processing unit 15 based on the detection result of the detection unit 13. In particular, in the present embodiment, the first parameter of the audio effect (predetermined effect) selected by the effect buttons 41, 42, 43, 44 is shifted based on the operation amount of the rotary knob 21, and the rotary knob 21 is changed. Based on the operation speed, the second parameter of the selected audio effect is shifted. In the present embodiment, the first parameter is a parameter for changing the effect amount of the audio effect. The second parameter is a parameter for changing the period (reverberation) of the reverberant sound added to the audio effect. Details will be described later.

  The audio signal processing unit 15 performs various types of audio processing (addition of audio effects, etc.) on the input audio signal based on an instruction from the control unit 14. The signal output unit 16 outputs the audio signal processed by the audio signal processing unit 15 to an external device such as a DJ mixer or an audio amplifier.

  Next, an operation method of the rotary knob 21 and the button group 22 will be described with reference to FIG. In the figure, as effect buttons, a “NOISE” button 41 corresponding to the audio effect “NOISE”, a “CRUSH” button 42 corresponding to the audio effect “CRUSH”, a “JET” button 43 corresponding to the audio effect “JET”, Four “FILTER” buttons 44 corresponding to the audio effect “FILTER” are shown.

  Further, each time the boost button 45 is pressed, the reverberation sound is switched ON / OFF. For example, when the “FILTER” button 44 is pressed (selected) and the boost button 45 is in the ON state, the “FILTER” effect and its reverberation (ECHO) change by the operation of the rotary knob 21. On the other hand, when the boost button 45 is in the OFF state, only the “FILTER” effect is changed by operating the rotary knob 21. The ON / OFF of the reverberation sound by the boost button 45 similarly affects other audio effects.

  When the rotary knob 21 is rotated clockwise from the center click position, the effect amount of the selected audio effect is increased according to the rotation amount. Further, even if the sound effect is rotated counterclockwise, the effect amount of the selected audio effect is increased according to the rotation amount. In other words, when the effect amount at the center click position is “0” (original sound state), the effect amount is increased by the clockwise and counterclockwise rotations.

  When the boost button 45 is in the ON state, the reverberation feeling of the “FILTER” effect changes according to the rotation speed of the rotary knob 21. In other words, by turning on the boost button 45, the rotational speed of the rotary knob 21 can be reflected in the selected audio effect. Specifically, when the rotation speed when the rotary knob 21 is rotated is greater than or equal to a predetermined threshold, the period of the reverberant sound is shorter than when the operation speed is less than the predetermined threshold. That is, when the rotary knob 21 is rotated quickly, a reverberation sound with a short period (for example, 1/4 beat of BPM (Beats Per Minute)) is added, and when the rotary knob 21 is rotated slowly, a long period (for example, BPM ( Add 3/4 beat reverberation (Beats Per Minute). When the reference position of the rotary knob 21 is near the center click, the reverberation effect is turned off.

  Next, with reference to FIG. 3 and FIG. 4, the transition of the parameters of various audio effects based on the operation of the rotary knob 21 will be described. In both figures, each explanatory diagram shows the rotation amount of the rotary knob 21 and the effect image of each effector in association with each other. Here, the case where the boost button 45 is in the ON state will be described.

  FIG. 3A is an explanatory diagram of the audio effect “FILTER”. “FILTER” is an effect for applying a high-pass filter (clockwise) or a low-pass filter (counterclockwise) to the original sound. As shown in the figure, the cutoff frequency (first parameter) of the filter is changed according to the rotation amount of the rotary knob 21. Further, the period (second parameter) of the reverberant sound is changed according to the rotation speed of the rotary knob 21. As shown in FIG. 5, the period of the reverberant sound refers to an interval (delay time) at which the delay sound of the audio effect “ECHO” is output. Depending on the amount of rotation of the rotary knob 21, not the cutoff frequency but the amount of resonance may be changed, or both the cutoff frequency and the amount of resonance may be changed.

  FIG. 3B is an explanatory diagram of the audio effect “CRUSH”. “CRUSH” is an effect for making the sound of the original sound broken. As shown in the figure, the degree to which the original sound is broken (the degree of sound breakage, the first parameter) is changed according to the rotation amount of the rotary knob 21. Further, the period (second parameter) of the reverberant sound is changed according to the rotation speed of the rotary knob 21.

  FIG. 4A is an explanatory diagram of the audio effect “JET”. “JET” is an effect for obtaining an effect (flange effect) like a rising / falling sound of a jet aircraft by adding a sound that is shifted in time to the original sound. As shown in the figure, the flange amount (the flange effect enhancement amount, the first parameter) is changed according to the rotation amount of the rotary knob 21. Further, the period (second parameter) of the reverberant sound is changed according to the rotation speed of the rotary knob 21. Depending on the rotation amount of the rotary knob 21, not the flange amount but the flange effect (resonance amount) may be changed, or both the flange amount and the flange effect may be changed. As shown in FIG. 4B, when the rotary knob 21 is at the center click position, the flange amount is minimum, and when the rotary knob 21 is at the HI position / LOW position, the flange amount is maximum. It may be changed as follows.

  FIG. 4C is an explanatory diagram of the audio effect “NOISE”. “NOISE” is an effect for obtaining a noise sound by outputting white noise generated inside the DJ effector 1 through a bandpass filter. As shown in the figure, the cut-off frequency (first parameter) of the filter through which white noise passes is changed according to the rotation amount of the rotary knob 21. Further, the period (second parameter) of the reverberant sound is changed according to the rotation speed of the rotary knob 21. Depending on the amount of rotation of the rotary knob 21, not the cutoff frequency but the volume of white noise may be changed, or both the cutoff frequency and white noise may be changed. Further, the modulation effect may be added to the white noise according to the rotation speed of the rotary knob 21.

  Although the four audio effects “FILTER”, “CRUSH”, “JET”, and “NOISE” have been described above, an operator for selecting another audio effect may be added. For example, when an operator for selecting the audio effect “ECHO” is added, the period of the delay sound (first parameter) is changed according to the amount of rotation of the rotary knob 21 as shown in FIG. May be. Further, the amount of reverberation (the time from when the input sound is cut until the fade-out is completed, the second parameter) may be changed according to the rotational speed of the rotary knob 21. The parameters may be exchanged, the reverberation amount may be changed according to the rotation amount of the rotary knob 21, and the delay sound cycle may be changed according to the rotation speed.

  Further, although not particularly illustrated, regarding various audio effects other than those described above that are applied to the DJ device, two different parameters may be simultaneously changed by operating the rotary knob 21. For example, in the case of “REVERB” that adds a reverberation effect to the original sound, the reverberation amount (first parameter) is changed according to the rotation amount of the rotary knob 21, and the reverberation sound is changed according to the rotation speed of the rotary knob 21. Or the comb filter coefficient (second parameter) may be changed. In addition, in the case of “DISTORTION” that adds a distortion effect to the original sound, the distortion amount (first parameter) is changed according to the rotation amount of the rotary knob 21, and the feedback amount according to the rotation speed of the rotary knob 21. Alternatively, the reverberation amount (second parameter) may be changed.

  Other audio effects to which the present invention can be applied include “PHASER” that adds a phase-shifted sound to the original sound, “ZIP” that changes the pitch (pitch), and mechanical sound by replacing the original sound with an internal dial tone. "VOCODER" to change can be considered. In addition to the parameters described above, parameters that can be changed according to the rotation amount and rotation speed of the rotary knob 21 include the delay time, the balance between the original sound and the effect sound, the pitch shift amount, the sound level in each frequency band, and the LR. A phase difference between channels can be considered.

  As described above, according to the present embodiment, since two types of parameters can be changed simultaneously according to the rotation amount and the rotation speed of the rotary knob 21, various functions can be easily operated. Particularly in DJ play where quick and accurate operation is required, a remarkable effect can be obtained. In addition, since the rotational speed of the rotary knob 21 is not required to detect a speed sensor, the cost of the apparatus can be reduced correspondingly, and the present invention can be easily realized only by changing the software in the conventional system. it can.

  In the above-described embodiment, the rotary knob 21 (rotary volume) is illustrated as an operator for changing parameters. However, the form of the operator is not limited. For example, it may be a slide volume or a touch pad (ribbon controller). Further, it may be a jog dial often mounted on a DJ player. These operators may be mounted on the remote controller.

  When the input device of the present invention is applied to PCDJ (a PC on which a DJ application is installed), the operation element may be a pointing device such as a mouse, a track pad, or a track ball. In this case, a GUI (Graphical User Interface) operated on the PCDJ display may include an operation element image such as a rotary volume or a slide volume. In this case, the operation element may be mounted on a DJ controller that is used in connection with the PC.

  In the above embodiment, the first parameter is a parameter for changing the effect amount of the audio effect, and the second parameter is a parameter for changing the amount of reverberation added to the audio effect. It was supposed to be, but it could be reversed. Further, for each audio effect, the first parameter and the second parameter may be selectable by the user from a plurality of parameter candidates.

  Further, the first parameter and the second parameter are not necessarily one parameter, and a composite of a plurality of parameters may be used as the first parameter or the second parameter. In addition, the user may be able to select a plurality of parameters as the first parameter or the second parameter.

  In the above-described embodiment, the cycle of the reverberant sound is switched in two stages depending on whether the rotation speed is equal to or higher than a predetermined threshold value. In order to improve operability, when a rotational speed exceeding a predetermined threshold is detected, a reverberation sound with a short period is output (speed detection is stopped for a certain period of time), and then a reverberation sound with a long period is output. May be output.

  Further, when the rotation of the rotary knob 21 is stopped at a high speed, the reverberant sound may be controlled to have a longer period when the rotation is stopped. That is, the same effect is obtained when the boost is turned on while the rotary knob 21 is rotating and when the rotary knob 21 is stopped while the boost is ON (the period of the reverberation sound is the same). It may be controlled so that it becomes longer.

  Moreover, it is possible to provide each component of the DJ effector 1 shown above 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 DJ effector 1 and a recording medium on which the program is recorded are also included in the scope of rights of the present invention.

  Moreover, although the case where the input device of the present invention is applied to the DJ effector 1 is illustrated in the above embodiment, the input device may be applied to a DJ device (DJ mixer, DJ player, etc.) other than the DJ effector 1. Further, the input device of the present invention may be applied to audio equipment other than DJ equipment and electronic musical instruments. Further, the present invention may be applied to a PC having a voice reproduction function, various tablet terminals, a mobile phone and the like. Furthermore, the input device of the present invention may be realized by cloud computing.

  In the above embodiment, the method of changing the parameter of the audio effect is exemplified. However, the input device of the present invention can also be applied to changing the parameter of various effects other than the audio effect such as the video effect. . Other modifications can be made as appropriate without departing from the scope of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... DJ effector 11 ... Signal input part 12 ... Operation part 13 ... Detection part 14 ... Control part 15 ... Audio | voice signal processing part 16 ... Signal output part 22 ... Button group 26 ... Knob detection part 27 ... Button detection part 41-44 ... Effect button 45 ... Boost button

Claims (9)

A detection unit for simultaneously detecting an operation amount and an operation speed of one operator;
A control unit that shifts a first parameter of a predetermined effect based on the operation amount, and that shifts a second parameter of the predetermined effect based on the operation speed ;
The input device, wherein the first parameter and the second parameter can be set independently of each other .   The input device according to claim 1, wherein the predetermined effect is an audio effect.   The input device according to claim 2, wherein the first parameter is a parameter for changing an effect amount of the audio effect.   The input device according to claim 3, wherein the second parameter is a parameter for changing a period of a reverberation sound added to the audio effect.   The control unit shifts the second parameter so that a period of the reverberant sound is shortened when the operation speed is equal to or higher than a threshold as compared with a case where the operation speed is lower than the threshold. The input device according to claim 4.   The input device according to claim 1, wherein the operation element is a rotary volume or a slide volume.   An audio device comprising the input device according to claim 1. A detection step for simultaneously detecting an operation amount and an operation speed of one operator;
Performing a control step of shifting a first parameter of a predetermined effect based on the operation amount, and shifting a second parameter of the predetermined effect based on the operation speed ;
Wherein said first parameter and the second parameter, the control method of the input device according to claim settable der Rukoto independently of each other.   The program for making a computer perform each step in the control method of the input device of Claim 8.

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