JP7375003B2 - Sound equipment and sound reproduction programs - Google Patents

Description

The present invention relates to an audio device and an audio reproduction program.

Traditionally, DJ equipment such as DJ controllers has multiple decks, and each deck plays a song while switching the audio output between the decks to perform a DJ performance by switching from the currently playing song to another song. Techniques are known (for example, see Patent Document 1).

When switching songs, use the crossfader installed on the DJ equipment, and by moving the crossfader control from one side to the other, the volume of the output of the deck being switched from the output of the deck being played is gradually changed. , you can switch songs.
By the way, when switching songs, DJ techniques include adding an echo effect to the currently playing song, and adding scratch playback, loop playback, etc. to the next song to be played. Techniques for performing switching are known.

Patent No. 4781491

However, there is a problem in that advanced DJ technology is required to simultaneously switch the sound source and perform special playback for the deck currently being played or the deck to be played from now on.

An object of the present invention is to provide an audio device and an audio reproduction program that can switch songs while providing special reproduction without requiring advanced DJ techniques.

The audio device of the present invention includes a sound source reproducing means capable of reproducing two or more sound sources, a crossfader that switches the output ratio of the two or more sound sources, and a crossfader that when an operator of the crossfader is at an intermediate position of a switching range. , and special playback execution means for performing preset special playback on at least one of the sound sources.
The computer-readable sound reproduction program of the present invention causes a computer to function as the above-mentioned sound device.

FIG. 1 is a schematic diagram showing the structure of an audio device according to an embodiment of the present invention. FIG. 3 is a schematic diagram showing the configuration of a display screen of a PDA in the embodiment. FIG. 3 is a block diagram showing the structure of the audio device in the embodiment. 5 is a flowchart for explaining the operation in the embodiment.

Embodiments of the present invention will be described based on the drawings. FIG. 1 shows an audio device 1 according to an embodiment of the present invention. The audio device 1 includes a DJ controller 2 and a PDA (Personal Digital Assistant) 3, and an operator operates various operators provided on the DJ controller 2 in response to a plurality of songs played by the PDA 3, which is a computer. This is a device that adds special effects to the music being played or performs special playback.

The DJ controller 2 is divided into a first deck section 2L, a second deck section 2R, and a mixing section 2M.
The first deck section 2L and the second deck section 2R are sections that perform special playback operations on the music being played back on the PDA 3, the music that will be the next playback music, or the music that is on playback standby. The first deck section 2L and the second deck section 2R include a jog dial 21, a tempo slider 22, a cue button 23, a play/pause button 24, and a pad 25.

The jog dial 21 is rotatably provided on the first deck section 2L and the second deck section 2R, and by rotating the jog dial 21, it is possible to change the playback direction, change the playback speed, and perform special playback such as loop playback. can.
The tempo slider 22 is a lever that adjusts the playback speed of the deck sections 2L and 2R to be operated.

The cue button 23 is a switch that jumps to a cue point set in the music to be played on the first deck section 2L and the second deck section 2R, and performs playback. When this switch is pressed, the track jumps from the currently playing or stopped track position and starts playing from the cue position.
The play/pause button 24 is a switch for starting or temporarily stopping the playback of the deck sections 2L and 2R to be operated.
The pad 25 stores cue points and operation results from the deck sections 2L and 2R, and by appropriately operating the pad 25, the operation results are restored and reproduced.

The mixing section 2M is a section that adjusts the output of the music played by each of the first deck section 2L and the second deck section 2R, mixes both outputs, and outputs the resulting sound. The mixing section 2M includes a plurality of operation knobs 26, a slider 27, a cue point setting switch 28, and a cross fader 29.
The plurality of operation knobs 26 are rotary volume switches that impart sound quality and acoustic effects to the outputs of the first deck section 2L and the second deck section 2R. Note that the type of sound effect, the degree of effect, etc. can be set by the sound source reproduction program executed on the PDA 3.

The slider 27 adjusts the output volume of the first deck section 2L and the second deck section 2R. When the lever of the slider 27 is raised, the output volume increases.
A cue point setting switch 28 is provided between the plurality of operation knobs 26. When the cue point setting switch 28 is pressed while rotating the jog dial 21 of the first deck section 2L and the second deck section 2R, a cue point can be placed at any track position of the sound source data of the first deck section 2L or the second deck section 2R. can be set.

The crossfader 29 switches the output ratio of the first deck section 2L and the second deck section 2R, which serve as sound sources. Specifically, when the operating lever 291, which is the operator of the crossfader 29, is set to the left end, which is the end on the first deck section 2L side, the output from the first deck section 2L becomes 100%, and the output from the second deck section 2R becomes 100%. If the right end is the side end, the output from the second deck section 2R will be 100%. Then, when the operating lever 291 is positioned at an intermediate position of the switching range, the sound sources of the first deck section 2L and the second deck section 2R are output, which are mixed at an output ratio according to the position. Although details will be described later, in this embodiment, the operation lever 291 of the crossfader 29 also functions as an operator of the special playback execution means 34.

FIG. 2 shows the display screen 3A of the PDA 3 when the audio reproduction program of this embodiment is executed. The upper part of the display screen 3A is divided into a first deck display area 3L and a second deck display area 3R, and each area includes a progress status overall display area G1, a tempo display area G2, a progress status detail display area G3, and an effect adding area. It is divided into a display section G4 and a GUI (Graphic User Interface) display section G5. In this embodiment, the first deck display area 3L corresponds to the first deck section 2L of the DJ controller 2, and the second deck display area 3R corresponds to the second deck section 2R of the DJ controller 2.

The overall progress display section G1 displays the current track position of the sound source data that is being played back or is in a playback standby state, and displays where in the song data is to be played back and whether it is being played back.
The tempo display section G2 displays the BPM (Beats Per Minute) of the music data that is being played or in a playback standby state in the first deck display area 3L and the second deck display area 3R. The BPM can be adjusted by operating the display screen 3A of the PDA 3 or by moving the operator of the tempo slider 22 of the DJ controller 2 described above.

The progress state details display section G3 displays the track position of the music data currently being played by superimposing it on the waveform of the music data using a marker G31. Below the waveform of the music data, a music characteristic section of the playback location of the music data is displayed, and in FIG. 2, it is displayed that "VERSE" (A melody) of the music data is being played.
The effect application display section G4 displays the effect to be applied to the music data being played, that is, the position where effect processing is performed, along with the progression of the waveform of the music data. In this embodiment, the chorus displayed at the top is displayed as an effect process, and the position at which the effect is applied is displayed in synchronization with the progress of the music data.

The GUI display section G5 includes information for prompting the operator to perform operations on the music data being played in the first deck display area 3L or the music data being in playback standby or being played in the second deck display area 3R. A GUI will be displayed.
In the present embodiment, the GUI display section G5 includes a cue icon G51, a play/pause icon G52, and a crossfader icon for the first deck display area 3L and the second deck display area 3R, similar to the DJ controller 2 described above. G53 is displayed. Even if the operator operates these switches on the display screen 3A of the PDA 3, the same operations as the DJ controller 2 can be performed.

FIG. 3 shows a functional block diagram of the audio device 1 according to the embodiment of the present invention. The audio device 1 includes a sound source reproduction means 31 as a program executed on the CPU of the PDA 3, an output sound source switching means 32, an effect processing means 33, and a special reproduction execution means 34.
The sound source reproducing means 31 is capable of reproducing two or more sound sources displayed in the first deck display area 3L and the second deck display area 3R in FIG. Note that the first deck display area 3L and the second deck display area 3R may each be capable of simultaneously reproducing sound source data that is being reproduced or in a reproduction standby state. Furthermore, operations performed on the first deck section 2L and second deck section 2R of the DJ controller 2 are converted into MIDI signals and input as operations on the PDA 3 via wireless communication.

The output sound source switching means 32 switches the output from the first deck display area 3L and the second deck display area 3R reproduced by the sound source reproduction means 31 according to the operating position of the crossfader icon G53. Note that the crossfader icon G53 is synchronized with the crossfader 29 of the DJ controller 2. The operation of the crossfader 29 is converted into a MIDI signal and input as an operation of the crossfader icon G53 of the PDA 3 via wireless communication.

The effect processing means 33 is a part that performs effect processing set on the PDA 3 on the music being played. The effect processing means 33 can be selected and set on the display screen 3A of the PDA 3.
Furthermore, settings such as the depth and length of the effect processing can be set on the display screen 3A, but they can also be set by adjusting the adjustment knob 26 of the DJ controller 2.

The special play execution means 34 executes special play according to the adjusted position of the crossfader icon G53. Here, the special play referred to in this embodiment is when the music data displayed in the first deck display area 3L or the second deck display area 3R is played back at a different BPM than the normal BPM set for the music. It means to be regenerated. Specifically, special playback includes scratch playback, loop playback, backspin playback, slip playback, and the like.

Specifically, the special play execution means 34 executes the special play by changing the adjustment position of the crossfader icon G53 from the left end position of the full scale output of the sound source played in the first deck display area 3L to the second deck. This is performed when the output of the sound source reproduced in the display area 3R is at an intermediate position up to the right end position of the full scale within a predetermined time. As mentioned above, the adjustment position of the crossfader icon G53 is synchronized with the adjustment position of the operating lever 291 of the crossfader 29 of the DJ controller 2, so the operator can stop the operating lever 291 at an intermediate position for a certain period of time. Special playback is also performed when

Next, the operation of this embodiment will be explained based on the flowchart shown in FIG. In the following explanation, the second deck starts playing the sound source while the first deck is playing the sound source, and the crossfader icon G53 switches the sound source from the first deck to the second deck. In addition, the procedure for effect processing on the first deck and special playback on the second deck will be shown.

The sound source reproducing means 31 is reproducing a sound source using the first deck (step S1).
When the operator operates the crossfader 29 or the crossfader icon G53, the output sound source switching means 32 switches the output volume of the first deck and the second deck according to the operating position of the crossfader icon G53, and also switches the output volume of the first deck and the second deck according to the operating position of the crossfader icon G53. Move the display (step S2).

Next, the sound source reproduction means 31 jumps the track start position of the second deck to the cue point, and prepares the second deck for reproduction (step S3).
The special playback execution means 34 determines whether the operating position of the crossfader icon G53 has been stopped for a predetermined period of time (step S4).
If the sound source has moved further before the predetermined time has elapsed, the output sound source switching means 32 switches the output ratio according to the operating position of the crossfader icon G53 (step S7). Thereafter, on the condition that the operation position is at the intermediate position (step S8), the process returns to step S4, and it is determined whether a predetermined time has elapsed at the next stop position.

If it is determined that the predetermined time has elapsed, the effect processing means 33 performs effect processing on the sound source being reproduced by the first deck (step S5).
At the same time, the sound source playback means 31 starts playing from the cue point, and the special playback execution means 34 starts special playback of the sound source being played on the second deck (step S6).

With effect processing and special playback performed, the output from the first deck and the output from the second deck are mixed and output according to the output ratio of the output sound source switching means 32 (step S7).
This is repeated up to the end of the crossfader icon G53 on the second deck side (step S8). When the operating position of the crossfader icon G53 moves to the end on the second deck side, effect processing and special playback are stopped, and playback is switched to the second deck (step S9).

According to this embodiment, the following effects are achieved.
In this embodiment, the operating position of the crossfader icon G53 is stopped for a predetermined time at an intermediate position from the end on the first deck side to the end on the second deck side, so that the special Playback will occur automatically. Therefore, when switching from the sound source being played back on the first deck to the sound source being played back on the second deck, special playback that requires advanced DJ techniques such as scratch playback, loop playback, and backspin playback can be performed at the same time.
Therefore, even if the operator is not fully proficient in DJ technology, the operator can switch the sound source to be reproduced while performing advanced special reproduction, and can improve the level of DJ performance.

In addition, since effect processing can be applied to the sound source on the first deck that is being played at the same time, it is possible to add effect processing in addition to special playback on the second deck, further improving the level of DJ performance. can.
Furthermore, since the operator can perform a DJ performance using the DJ controller 2, the operator can execute special playback by mechanically operating the jog dial 21 and crossfader 29, and can perform a DJ performance with a sense of realism. can.

Note that the present invention is not limited to the embodiments described above, but includes the following modifications.
In the embodiment described above, the audio device 1 includes the DJ controller 2 and the PDA 3, but the present invention is not limited thereto. For example, the DJ controller 2 may be omitted and the DJ performance may be performed using only the PDA 3.

In the embodiment described above, effect processing is performed on the sound source on the first deck side that is being reproduced, and special reproduction is performed on the sound source on the second deck side to be switched, but the present invention is not limited to this. For example, special reproduction may be performed on the sound source being played, and effect processing may be performed on the sound source on the switching side. Alternatively, only special playback may be performed and effect processing may be omitted.
In addition, the specific structure, shape, etc. of the present invention may be changed to other structures as long as the object of the present invention can be achieved.

1... Sound device, 2... DJ controller, 2L... First deck section, 2M... Mixing section, 2R... Second deck section, 3A... Display screen, 3L... First deck display area, 3R... Second deck display area, 21... Jog dial, 22... Tempo slider, 23... Cue button, 24... Pause button, 25... Pad, 27... Slider, 28... Cue point setting switch, 29... Cross fader, 31... Sound source playback means, 32... Output sound source switching Means, 33...Effect processing means, 34...Special reproduction execution means, 291...Operation lever, G1...Progress state overall display section, G2...Tempo display section, G3...Progress state detailed display section, G31...Marker, G4...Effect imparting Display section, G5...GUI display section, G51...Cue icon, G52...Pause icon, G53...Cross fader icon.

Claims (4)

a sound source reproduction means capable of reproducing two or more sound sources;
a crossfader that switches the output ratio of the two or more sound sources;
and special playback execution means for executing special playback according to the operation position of the crossfader when the crossfader operator is at an intermediate position of a switching range ,
The sound source playback means starts playing the second sound source while playing the first sound source,
The special reproduction execution means is an audio device, wherein the special reproduction execution means executes the special reproduction on the first sound source being reproduced by the sound source reproduction means or the second sound source being reproduced by the sound source reproduction means. The acoustic device according to claim 1,
In the audio device, the special playback is one of scratch playback, loop playback, and backspin playback. The acoustic device according to claim 1 or 2,
The special playback execution means is an audio device that executes the special playback when the operator stops within a switching range of the crossfader for a certain period of time. A computer-readable audio reproduction program that causes a computer to function as the audio device according to any one of claims 1 to 3.

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