Sound device, control method for sound device, and program

Abstract

An audio device (1) is provided with a rotary operation element (33) that can be adjusted stepwise to a plurality of predetermined scales (333A to 333F) and sets a time interval when a sound effect or a special effect is added to sound data. The audio device (1) is provided with: a detection unit (72) that detects a rotation angle of the rotary operation element; and a determination unit (74) that determines a time interval corresponding to the scale in units of multiples of m / n beats of the sound data in accordance with the BPM of the sound data.

Description

Technical Field

[0001] The present invention relates to an audio device, a control method for an audio device, and a program.

Background Art

[0002] Conventionally, in an audio device such as a mixer used in a DJ performance or the like, so-called effect processing for adding sound effects or special effects to audio data is known. In effect processing, it may be necessary to set a time interval related to the effect processing. For example, in the mixer described in Non-Patent Document 1, the above-described time interval is set using an operator as shown in FIG. 5. The operator shown in FIG. 5 is a button group 101 for setting the magnification of the beat for synchronizing the effect sound and a rotary operator 102 for adjusting the time parameter. By operating these operators independently or sequentially, the time interval related to the effect processing is set.

Prior Art Documents

Non-Patent Documents

[0003]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the setting of the time interval related to the above-described effect processing, the operation methods and setting targets of the button group 101 and the rotary operator 102 are different, and it is necessary to operate them individually. Therefore, the present invention aims to provide an audio device, a control method for the audio device, and a program that allow for simple and intuitive operation in setting time intervals related to effect processing, and offer high flexibility in settings. [Means for solving the problem]

[0005] [1] An acoustic device comprising a rotary operator that can be adjusted in steps to a plurality of predetermined scales and sets a time interval for adding sound effects or special effects to audio data, the acoustic device comprising a detection unit for detecting the rotation angle of the rotary operator and a determination unit for determining the time interval corresponding to the scale in multiples of m / n beats of the audio data according to the BPM of the audio data. [2] The acoustic device according to [1], wherein the rotary operator is continuously adjustable in a range other than a plurality of predetermined scales, and the determination unit determines the time interval corresponding to the range in accordance with the time interval corresponding to the scale adjacent to the range. [3] The sound device according to [1], wherein the determination unit determines that the time interval corresponding to the scale is shorter when the BPM value is large, and longer when the BPM value is small. [4] A control method for an acoustic device comprising a rotary operator that can be adjusted in steps to a plurality of predetermined scales and sets a time interval for adding sound effects or special effects to audio data, comprising the steps of detecting the rotation angle of the rotary operator and determining a time interval corresponding to a scale in multiples of m / n beats of the audio data according to the BPM of the audio data. [5] A program for causing a computer to function as an acoustic device comprising a rotary operator that can be adjusted in steps to a plurality of predetermined scales and sets a time interval for adding sound effects or special effects to audio data, the program comprising a detection unit for detecting the rotation angle of the rotary operator and a determination unit for determining the time interval corresponding to the scale in multiples of m / n beats of the audio data according to the BPM of the audio data. [Brief explanation of the drawing]

[0006] [Figure 1] A top view showing the structure of a DJ mixer according to one embodiment of the present invention. [Figure 2] A diagram illustrating the effect time setting unit in one embodiment of the present invention. [Figure 3] Functional block diagram of the control unit of a DJ mixer in one embodiment of the present invention. [Figure 4] A flowchart illustrating the control method in one embodiment of the present invention. [Figure 5] A diagram illustrating conventional sound equipment. [Modes for carrying out the invention]

[0007] One embodiment of the present invention will be described below with reference to the drawings. [Overall structure] Figure 1 shows the present invention One embodiment A schematic diagram of DJ Mixer 1, an audio device related to the above, is shown. Although not shown in the diagram, the input side of DJ Mixer 1 is connected to music playback devices such as analog players, CD players, and computers, as well as music control devices such as DJ controllers. The output side of DJ Mixer 1 is connected to audio devices such as speakers.

[0008] As an audio device, DJ Mixer 1 receives music data, which is the audio signal played back by the music playback device and music control device, and applies effects processing to the audio data of the input music data. Furthermore, DJ Mixer 1 amplifies the processed audio data, converts it to an analog signal, and then outputs the sound from the audio device. The DJ mixer 1 includes a microphone adjustment unit 2, an effects processing unit 3, a master adjustment unit 4, and an equalizer adjustment unit 5.

[0009] The microphone adjustment unit 2 includes controls for adjusting the output volume of a microphone (not shown) connected to the DJ mixer 1, and for starting and stopping effect processing by the effect processing unit 3. The microphone adjustment unit 2 also includes a terminal for the user to monitor the output volume of audio data output from the DJ mixer 1 by connecting headphones. The microphone adjustment unit 2 includes, for example, headphone input / output terminals, a headphone volume control unit, a mixing adjustment unit, a master effect switching and effect amount adjustment unit, a microphone switching and volume adjustment unit, a microphone equalizer adjustment unit, and so on.

[0010] The effect processing unit 3 includes controls for performing effect processing, such as adding sound effects or special effects to the input audio data. The effect processing unit 3 comprises an effect switching unit 31, a channel switching unit 32, an effect time setting unit 33, an effect amount adjustment unit 34, and a display unit 35.

[0011] The effect switching unit 31 includes a switch for selecting the type of effect processing applied to the audio data. Depending on the operation of the switch, the effect switching unit 31 selects an effect such as echo, delay, reverb, or flanger. The channel switching unit 32 includes an operator for selecting which of the multiple channels provided in the equalizer adjustment unit 5 will be used to process the audio data input to the equalizer. The channel switching unit 32 switches the audio data to be processed according to the operation of the operator.

[0012] The effect time setting unit 33 includes controls for setting the time interval and other parameters when performing the effect processing selected by the effect switching unit 31. Details of the effect time setting unit 33 will be described later. The effect amount adjustment unit 34 includes controls for adjusting the amount of effect applied and the depth of the effect in the effect processing selected by the effect switching unit 31. The effect amount adjustment unit 34 adjusts the amount of effect applied and the depth of the effect in the effect processing according to the operation of the controls. The display unit 35 is a display element for displaying the selected effects and the BPM of the input voice data for the user to visually recognize.

[0013] The master adjustment unit 4 includes an operator for adjusting the overall voice data with effects applied and amplified output from the DJ mixer 1. The master adjustment unit 4 includes, for example, a master volume adjustment unit, a level indicator, a balance adjustment unit for the master volume, an equalizer switching unit, a channel fader switching unit, and a cross fader switching unit, etc.

[0014] The equalizer adjustment unit 5 includes an operator for performing equalizer processing on the voice data input from the music playback device connected to the DJ mixer 1 for each channel. Specifically, the equalizer adjustment unit 5 includes first to fourth adjustment units 5A to 5D for adjusting four channels respectively. A music playback device and a music operation device are respectively connected to the first to fourth adjustment units 5A to 5D, and equalizer adjustment can be performed for each of the first to fourth adjustment units 5A to 5D. Each of the first to fourth adjustment units 5A to 5D includes, for example, an input switching unit, an input channel volume adjustment unit, a channel level indicator, an adjustment unit for each frequency, a channel fader, etc. The equalizer adjustment unit 5 also includes a cross fader, etc.

[0015] [Detailed Configuration of the Effect Time Setting Unit 33] As shown in FIG. 2, the aforementioned effect time setting unit 33 includes an operation knob 331, an adjustment position marker 332, and scales 333A to 333F. The operation knob 331 is rotatably held on the housing of the effect time setting unit 33.

[0016] The adjustment position marker 332 is formed integrally with the operation knob 331, and the user can visually recognize the adjustment content when rotating the operation knob 331 based on the positional relationship between the adjustment position marker 332 and the scales 333A to 333F.

[0017] Scales 333A to 333F are arranged on the housing of the effect time setting unit 33 and include a line segment corresponding to the adjustment position of the operation knob 331 and a unit of beats corresponding to that line segment. The unit of beats may be printed on the housing or may be displayed by the display unit. Scales 333A to 333F correspond to time intervals in multiples of m / n beats. m and n are each arbitrary integers. In the example of FIG. 2, scales 333A to 333F correspond to 10 milliseconds, 1 / 8 beat, 1 / 4 beat, 1 / 2 beat, 3 / 4 beat, and 1 / 1 beat, respectively. Details of scales 333A to 333F will be described later.

[0018] The operation knob 331 of the effect time setting unit 33 can be adjusted stepwise to scales 333A to 333F. The stepwise adjustment is realized, for example, by an engagement part composed of a known latch and recess. Also, the operation knob 331 can be adjusted continuously in a range other than scales 333A to 333F.

[0019] The effect time setting unit 33 can accept two patterns of operations by the user. The first operation is an operation in which the user adjusts the operation knob 331 to any one of scales 333A to 333F. In this operation, the user can roughly match the time interval set by the effect time setting unit 33 in units of multiples of m / n beats of the audio data.

[0020] The second operation is an operation in which the user continuously rotates the operation knob 331 in a range other than scales 333A to 333F. In this operation, the user can set the time interval set by the effect time setting unit 33 in more detail in time units such as milliseconds.

[0021] [Functional Block Diagram of DJ Mixer 1] FIG. 3 shows a functional block diagram of the control unit of the DJ mixer 1. Below, the part related to the effect time setting unit 33 will be described. The control unit 7, which controls the DJ mixer 1, controls the input audio data in response to user operations on the various controls described with reference to Figure 1. The control unit 7 includes an acquisition unit 71, a rotation angle detection unit 72, a BPM detection unit 73, and a determination unit 74.

[0022] The acquisition unit 71 acquires the outputs of the various controls of the DJ mixer 1. The rotation angle detection unit 72 detects the rotation angle of the operation knob 331 of the effect time setting unit 33 based on the output of the effect time setting unit 33. The rotation angle detection is performed repeatedly at a predetermined cycle.

[0023] The BPM detection unit 73 detects the BPM of the audio data to be processed for effect processing. The BPM detection may be performed by any known method. The BPM detection is performed repeatedly at a predetermined interval.

[0024] The determination unit 74 determines the time intervals corresponding to each of the scale divisions 333A to 333F according to the BPM value detected by the BPM detection unit 73. Table 1 shows an example of the time intervals determined by the determination unit 74.

[0025] [Table 1]

[0026] As shown in Table 1, the determination unit 74 determines, for example, for the scale 333F to which a 1 / 1 beat is associated, a time interval of 600 milliseconds if the BPM value detected by the BPM detection unit 73 is 100, and a time interval of 500 milliseconds if the BPM value detected by the BPM detection unit 73 is 120. Similarly, for example for the scale 333D to which a 1 / 2 beat is associated, a time interval of 300 milliseconds if the BPM value detected by the BPM detection unit 73 is 100, and a time interval of 250 milliseconds if the BPM value detected by the BPM detection unit 73 is 120.

[0027] In other words, the determination unit 74 determines a shorter time interval corresponding to the scale when the BPM value detected by the BPM detection unit 73 is large, and a longer time interval corresponding to the scale when the BPM value detected by the BPM detection unit 73 is small. Therefore, the time interval associated with a predetermined rotation angle of the operation knob 331 will be different depending on the BPM value.

[0028] Furthermore, the determination unit 74 determines the time interval corresponding to a range other than scales 333A to 333F, in accordance with the time interval corresponding to the adjacent scale. For example, between scale 333C, to which a 1 / 4 beat is associated, and scale 333D, to which a 1 / 2 beat is associated, the determination unit 74 determines a time interval of 150 milliseconds to 300 milliseconds if the BPM value detected by the BPM detection unit 73 is 100, and determines a time interval of 125 milliseconds to 250 milliseconds if the BPM value detected by the BPM detection unit 73 is 120.

[0029] Furthermore, for ranges other than scale divisions 333A to 333F, the time interval corresponding to a unit rotation angle may change linearly or functionally. Furthermore, the change in time intervals outside the range of scale divisions 333A to 333F may be configurable by the user.

[0030] According to the effect time setting unit 33 described above, when the user rotates the operation knob 331 to any of the markings 333A to 333F, the time interval can be set in multiples of the m / n beats of the audio data. Furthermore, according to the effect time setting unit 33, when the user continuously rotates the operation knob 331 in a range other than 333A to 333F, the time interval can be set in milliseconds.

[0031] [Control method in response to operations on the effect time setting unit 33] Figure 4 shows a control method executed by the control unit 7. The BPM detection unit 73 detects the BPM of the audio data (step S101), and the determination unit 74 determines the time interval corresponding to the scale according to the BPM (step S102). Then, if it is determined that the BPM has changed (step S103 YES), the determination unit 74 determines the time interval corresponding to the scale again (step S102).

[0032] In other words, when the BPM of the audio data to be processed for effect changes, the determination unit 74 determines the time interval. Therefore, the time interval set in the effect time setting unit 33 can always be optimized to match the BPM.

[0033] [Effects of the Embodiment] The DJ mixer 1 according to this embodiment described above can achieve the following effects. The DJ mixer 1 includes an effect time setting unit 33 that can be adjusted in steps to multiple predetermined scales and includes a rotary operator for setting the time interval when adding sound effects or special effects to audio data. The control unit 7 of the DJ mixer 1 includes a rotation angle detection unit 72 that detects the rotation angle of the operation knob 331, which is the rotary operator of the effect time setting unit 33, and a determination unit 74 that determines the time intervals corresponding to scales 333A to 333F in multiples of m / n beats of the audio data, according to the BPM of the audio data. With this configuration, the effect processing can be set in multiples of m / n beats of the audio data, and the scale of the effect time setting unit 33 is adjusted according to the BPM of the audio data. time interval corresponding to This allows for optimization. As a result, setting the time interval for effect processing becomes simpler and more intuitive, and improved flexibility in settings can be expected.

[0034] Furthermore, according to this embodiment, the operating knob 331, which is a rotary operator of the effect time setting unit 33, can be continuously adjusted in a range other than a plurality of predetermined scales 333A to 333F, and the determination unit 74 determines the time interval corresponding to the range according to the time interval corresponding to the scale adjacent to that range. With this configuration, the user can smoothly and seamlessly adjust the settings for multiples of m / n beats of the audio data, as well as for continuous settings between multiples of m / n beats, by operating the effect time setting unit 33, which is a single control. This enables simple and intuitive operation by the user, and is expected to improve the flexibility of the settings.

[0035] Furthermore, according to this embodiment, the determination unit 74 determines that the time interval corresponding to the scale is shorter when the BPM value is large, and longer when the BPM value is small. Therefore, the time interval set in the effect time setting unit 33 can always be optimized in accordance with the BPM.

[0036] [Variations of the Embodiment] In the above embodiment, the effect time setting unit 33 shown in Figure 2 is just one example, and this embodiment is not limited to this example. For example, in the example in Figure 2, the scales 333A to 333F are shown to be arranged symmetrically with respect to the center of the operation knob 331, but they may be arranged asymmetrically. Also, for example, in the example in Figure 2, six scales 333A to 333F are shown, but five or fewer scales, or seven or more scales, may be arranged.

[0037] Furthermore, the time intervals determined by the determination unit 74 shown in Table 1 are just examples, and this embodiment is not limited to these examples. For example, the time intervals associated with each scale are not limited to the examples in Table 1. Also, in the example in Table 1, an example is shown where 10 milliseconds are associated with scale 333A, but time intervals such as 1 / 16 beat may be associated with it. Furthermore, some or all of the time intervals determined by the determination unit 74 according to the BPM may be set by the user.

[0038] Furthermore, although the above embodiment described an effect time setting unit 33 including a rotary control element as an example, the present invention is not limited to this example. For example, the present invention can be similarly applied to an audio device including a linearly moving slide control element used in a fader or the like. In this case, for a plurality of predetermined scales of the slide control element, the time interval corresponding to the scale can be determined in units of multiples of m / n beats of the audio data, according to the BPM of the audio data.

[0039] Furthermore, sound devices with the above functions are available at the top Record The present invention is not limited to the examples described in the section on implementation forms; for example, it may also be applied to mixers, DJ controllers equipped with mixer functions, etc. Furthermore, the present invention may be applied to computers, smartphones, and tablet devices that run DJ applications. In such cases, the same effect can be obtained even in sound devices that do not have a rotary control member. Furthermore, the present invention may be applied not only to DJ equipment and DJ applications, but also to music applications and internet-based streaming services. In such cases, the present invention can be applied to, for example, automatic playback using playlists. Also, above Record Although a 4-channel audio system was described in the implementation example, similar functionality can be achieved with a 2-channel audio system, for example. Furthermore, this invention is not limited to DJ equipment, but can also be applied to general mixers, electronic musical instruments, and even audio systems such as DAWs (Digital Audio Workstations) and DTMs (Desktop Music).

[0040] Although preferred embodiments of the present invention have been described in detail above with reference to the attached drawings, the present invention is not limited to these examples. It is clear to any person with ordinary skill in the art to which the present invention belongs that various modifications or alterations can be conceived within the scope of the technical idea described in the claims, and these will naturally also be understood to fall within the technical scope of the present invention. [Explanation of Symbols]

[0041] 1...DJ mixer, 2...microphone adjustment unit, 3...effect processing unit, 4...master adjustment unit, 5...equalizer adjustment unit, 5A...first adjustment unit, 5D...fourth adjustment unit, 7...control unit, 31...effect switching unit, 32...channel switching unit, 33...effect time setting unit, 34...effect amount adjustment unit, 35...display unit, 71...acquisition unit, 72...rotation angle detection unit, 73...BPM detection unit, 74...determination unit, 331...operation knob, 332...adjustment position marker, 333A, 333B, 333C, 333D, 333E, 333F...scale.

Claims

1. An acoustic device, A rotary control that can be adjusted in steps to multiple predetermined scales, and sets the time interval when adding sound effects or special effects to audio data, A detection unit for detecting the rotation angle of the aforementioned rotary operator, An acoustic device comprising: a determination unit that determines the time interval corresponding to the scale in multiples of m / n beats of the audio data according to the BPM of the audio data.

2. The rotary operator is continuously adjustable within a range other than the plurality of predetermined scales. The sound device according to claim 1, wherein the determination unit determines the time interval corresponding to the range according to the time interval corresponding to the scale adjacent to the range.

3. The sound device according to claim 1, wherein the determination unit determines a shorter time interval corresponding to the scale when the BPM value is large, and determines a longer time interval corresponding to the scale when the BPM value is small.

4. A method for controlling an acoustic device, The process involves detecting the rotation angle of a rotary control that can be adjusted in steps to multiple predetermined scales and sets the time interval for adding sound effects or special effects to audio data, A control method for an acoustic device, comprising the step of determining the time interval corresponding to the scale in multiples of m / n beats of the audio data, according to the BPM of the audio data.

5. A program for causing a computer to function as an acoustic device, The aforementioned acoustic device is A detection unit that detects the rotation angle of a rotary control that can be adjusted in steps to multiple predetermined scales and sets the time interval when adding sound effects or special effects to audio data, A program for causing a computer to function as an acoustic device, comprising: a determination unit that determines the time interval corresponding to the scale in multiples of m / n beats of the audio data, according to the BPM of the audio data.

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