JP2014068100A - Reproduction system for dj - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reproduction system for DJ in which the beat of an audio signal that is reproduced by a reproduction device, can be known exactly even if the audio signal outputted from a headphone device is hard to hear due to the ambient sound.SOLUTION: In a reproduction system for DJ including a mixing device outputting a plurality of audio signals while mixing, and a headphone device which outputs the audio signal outputted from the mixing device, the mixing device outputs an audio signal and a beat signal at a timing becoming the position of beat in the audio signal, and the headphone device includes a driver unit for outputting an audio signal that is outputted from the mixing device, and a vibration unit for outputting the beat signal outputted from the mixing device while vibrating.

Description

  The present invention relates to a DJ playback system in which a disc jockey or the like attaches a headphone device and operates a playback device and a mixing device to mix audio signals.

  2. Description of the Related Art Conventionally, a DJ playback system used to intermittently play a plurality of songs when a disc jockey (DJ) plays dance music in a disco or dance club is known.

  As a main combination of a conventional DJ playback system, a playback device composed of two CDs (Compact Discs) having a pitch control function capable of changing the tempo of a song to be played back and a mixing device are used. Audio signals output from two playback devices are input to a mixing device, and a sound source obtained by mixing the audio signals input from the two playback devices by operating the mixing device is output from a speaker via an amplifier device. There is.

  As a normal operation method in which a DJ plays dance music using the above-described DJ playback system, for example, while playing the first song on one playback device, the second song is played in advance on the other playback device. Cueing and fading in the second song while fading out the first song by operating the fader provided in the mixing device with the tempo of the first song and the tempo of the second song matched. Thus, a performance method is performed in which the first song is switched to the second song without a sense of discomfort while keeping the tempo of the song output from the speaker in a state where the tempo of the first song is maintained.

  In such a conventional DJ playback system, for example, the DJ operates the mixing device while wearing the headphone device, and the first song to be played back by one playback device is output from the speaker while the other The playback device starts playing the second song, listens to the first song on the L channel side of the headphone device, and listens to the second song on the R channel side, while the beat of the second song is After changing the tempo of the second song by operating the pitch control of the other playback device so that it is the same as the beat of the first song, and making the tempo of the second song match the tempo of the first song The fader of the mixing device is operated to fade out the first song output from the speaker, and the second song is faded in, so that the second song is maintained while maintaining the tempo of the first song. Switch. In this way, the DJ adjusts the tempo of the music by operating the pitch control of the two playback devices while listening to the music currently being output from the speaker on the headphone device and the music to be switched from the headphone device. The songs to be played are switched intermittently and played intermittently while maintaining a constant state.

  As described above, in order for a DJ to operate two playback devices and a mixing device to play a plurality of songs intermittently while maintaining a constant beat, the L channel side and the R channel side of the headphone device Since it is necessary to operate the pitch control of the playback device so that the beat of the second song and the beat of the first song match while listening to the first song and the second song respectively from Since it is necessary to accurately grasp the beat of each piece of music reproduced from the headphone device, advanced technology and skilled experience are required.

  In a conventional DJ playback system, a playback apparatus capable of displaying the beats per minute (BPM) of a song being played back is known (for example, see Patent Document 1).

JP-A-8-201542

  When a DJ plays a plurality of songs intermittently, in order to prevent the tempo of the song being played and the tempo of the song to be played back from shifting, the timing of the beat of the song being played and the future It is necessary to match the timing of the beats of the music to be switched for playback. For this reason, even when a playback device that displays the BPM of a song as described above is used, in order to match the timing of the beat of the song being played back with the timing of the beat of the song to be switched and played back, the headphone device Therefore, while listening to both the first song and the second song, it is necessary to adjust the pitch control of the playback device so that the beat timing of each song is the same.

  As described above, in a disco or dance club where a DJ plays dance music, a loud sound is usually output from a speaker, and a large number of audiences often gather together to cheer. When adjusting the pitch control of the playback device by listening to both the first song and the second song with the headphone device in order to synchronize the beat timing of the song, the loud music and surroundings output from the speaker The music output from the headphone device may be difficult to hear due to the cheers of the audience.

  In this way, if the DJ is unable to hear the loud music output from the speaker and the music output from the headphone device due to the cheering of the surrounding audience, the DJ listens on the L channel side of the headphone device. The beats of the song and the song being listened to on the R channel side cannot be accurately recognized, and the beats of the respective songs cannot be accurately matched.

  The present invention relates to a playback system for a DJ, in which when the audio signal being played back by the playback device is listened to by the headphone device, even if the audio signal output from the headphone device becomes difficult to hear due to ambient sounds, the playback device An object of the present invention is to provide a DJ playback system capable of accurately grasping the beat of the audio signal being played.

  The invention according to claim 1 of the present application is a DJ playback system including a mixing device that outputs an audio signal obtained by mixing a plurality of audio signals, and a headphone device that outputs an audio signal output from the mixing device. Outputs an audio signal and a beat signal at a timing corresponding to a beat position in the audio signal, and the headphone device is output from the mixing device and a driver unit that outputs the audio signal output from the mixing device. It is provided with a vibration part that outputs a beat signal as vibration.

  According to a second aspect of the present invention, in the DJ playback system according to the first aspect, the mixing device mixes the audio signals reproduced by the first reproduction device and the second reproduction device, and the first reproduction device The playback device outputs a first beat signal at a timing corresponding to a beat position in the first audio signal and the first audio signal, and the second playback device outputs the second audio signal and the second audio signal. A second beat signal is output at a timing corresponding to a beat position in the audio signal, and the mixing device outputs the first audio signal and the first beat signal output from the first reproduction device. The second audio signal and the second beat signal output from the second playback device are output, and the headphone device outputs the first audio signal output from the mixing device. An Lch horn unit and an Rch horn unit for outputting an audio signal and a second audio signal, respectively, wherein the Lch horn unit and the Rch horn unit output the first beat signal and the second beat signal output from the mixing device, respectively. A vibration unit that outputs signals as vibrations is provided.

  The invention according to claim 3 of the present application is the DJ playback system according to claim 1 or 2, wherein each of the Lch horn part and the Rch horn part includes a flange and a head pad, and the vibration part is attached to the flange. It is fixed and is arranged so that the tip portion is close to the surface of the head pad 4.

  According to a fourth aspect of the present invention, in the DJ playback system according to any one of the first to third aspects, the headphone device includes a vibration adjustment unit capable of adjusting a vibration intensity of the vibration unit. It is characterized by.

  According to the present invention, in the DJ playback system, when the audio signal being played back by the playback device is listened to by the headphone device, even if the audio signal output from the headphone device is difficult to hear by the surrounding sound, It is possible to provide a DJ playback system that can accurately grasp the beat of an audio signal being played back by a playback device.

1 is a block diagram showing a DJ playback system according to an embodiment of the present invention. 1 is a schematic configuration diagram showing a headphone device 400 of the present embodiment. Sectional drawing which shows the Lch horn part 10 of the headphone apparatus 400 of a present Example. The figure which shows the state with which the user mounted | wore the headphones apparatus 400 of a present Example.

  Embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is used about the part same as the component shown by the prior art.

FIG. 1 is a block diagram showing a DJ playback system according to an embodiment of the present invention.
The DJ playback system 1 includes a first playback device 100, a second playback device 200, a mixing device 300, and a headphone device 400.

  The first playback device 100 includes an operation unit 1001, an audio signal output unit 1002, a beat signal output unit 1003, a playback unit 1004, and a control unit 1005.

  The operation unit 1001 includes a reproduction start button, a reproduction stop button, a pitch control unit, and the like (not shown), and outputs a reproduction start instruction signal, a reproduction stop instruction signal, and a pitch control instruction signal in accordance with a user operation. The control unit 1005 controls the playback unit 1004 to start playback, stop playback, and control the pitch of the audio signal to be played back according to an instruction signal from the operation unit 1001. Further, the control unit 1005 controls the playback unit 1004 to detect the position of the beat of the audio signal from the audio signal played back by the playback unit 1004.

  The playback unit 1004 reads the audio signal recorded on the CD based on the control of the control unit 1005, and outputs the read audio signal to the audio signal output unit 1002. Further, the playback unit 1004 detects the position of the beat of the audio signal from the audio signal recorded on the CD based on the control of the control unit 1005, and the position of the beat in the audio signal output to the audio signal output unit 1002 The beat signal is output to the beat signal output unit 1003 at the timing as follows. The audio signal output unit 1002 outputs the audio signal output from the reproduction unit 1004 to the mixing device 300. The beat signal output unit 1003 outputs the beat signal output from the reproduction unit 1004 to the mixing device 300.

  The second playback device 200 includes an operation unit 2001, an audio signal output unit 2002, a beat signal output unit 2003, a playback unit 2004, and a control unit 2005. The operation unit 2001, the audio signal output unit 2002, the beat signal output unit 2003, the playback unit 2004, and the control unit 2005 included in the second playback device 200 are the operation unit 1001 and the audio signal output unit 1002 of the first playback device 100, respectively. Since the configuration is the same as that of the beat signal output unit 1003, the playback unit 1004, and the control unit 1005, description thereof is omitted.

  The mixing apparatus 300 includes a first audio signal input unit 3001, a second audio signal input unit 3002, an operation unit 3003, a mixing unit 3004, a master output unit 3005, a headphone output unit 3006, a control unit 3007, and a first beat signal. An input unit 3011 and a second beat signal input unit 3012 are provided.

  The first audio signal input unit 3001 and the first beat signal input unit 3011 are electrically connected to the audio signal output unit 1002 and the beat signal output unit 1003 of the first playback device 100 by cables or the like, respectively, and are used as audio signals. The first audio signal and the first beat signal are input from the output unit 1002 and the beat signal output unit 1003, respectively.

  The second audio signal input unit 3002 and the second beat signal input unit 3012 are electrically connected to the audio signal output unit 2002 and the beat signal output unit 2003 of the second playback device 200 by cables or the like, respectively. The second audio signal and the second beat signal are input from the output unit 2002 and the beat signal output unit 2003, respectively.

  The operation unit 3003 includes an output signal switching unit and a fader unit (not shown), and outputs an output signal switching instruction signal and a fader control instruction signal in accordance with a user operation. The control unit 3007 controls mixing by the audio signal by the mixing unit 3004 in accordance with an instruction signal from the operation unit 3003.

  The mixing unit 3004 mixes the first audio signal and the second audio signal input from the first audio signal input unit 3001 and the second audio signal input unit 3002, respectively, and outputs the mixed signal to the master output unit 3005. Further, the mixing unit 3004 controls the ratio of the volume of the first audio signal and the second audio signal output to the master output unit 3005 in accordance with fader control by the control unit 3007.

  The master output unit 3005 outputs the audio signal output from the mixing unit 3004 to the AV amplifier device. The AV amplifier device amplifies the audio signal output from the master output unit 3005 and outputs it to a speaker device (not shown). The speaker device emits the audio signal amplified by the AV amplifier device.

  The mixing unit 3004 controls the first audio signal input from the first audio signal input unit 3001 and the second audio signal input from the second audio signal input unit 3002 under the control of the control unit 3007. One of the audio signals is output to the headphone output unit 3006 as an L channel audio signal, and the other audio signal is output to the headphone output unit 3006 as an R channel audio signal. In the present embodiment, the mixing unit 3004 outputs the first audio signal input from the first audio signal input unit 3001 as an L-channel audio signal and the input from the second audio signal input unit 3002. It is assumed that the second audio signal is output as an R channel audio signal.

  The mixing unit 3004 receives the first beat signal and the second beat signal input by the first beat signal input unit 3011 and the second beat signal input unit 3012 and outputs them to the headphone output unit 3006. The mixing unit 3004 outputs the first beat signal as a signal on the same channel as the first audio signal, and outputs the second beat signal as a signal on the same channel as the second audio signal. In this embodiment, the first beat signal is output as an L channel beat signal, and the second beat signal is output as an R channel beat signal.

  The headphone output unit 3006 outputs the L channel audio signal and the R channel audio signal output from the mixing unit 3004 to the headphone device 400. The headphone output unit 3006 outputs the L channel beat signal and the R channel beat signal output from the mixing unit 3004 to the headphone device 400.

FIG. 2 is a schematic configuration diagram showing the headphone device 400 of the present embodiment.
The headphone device 400 includes a headband unit 9, a cable 6, and an input terminal 8. The input terminal 8 is connected to the headphone output unit 3006 of the mixing apparatus 300 shown in FIG.

  The headband unit 9 holds the Lch horn unit 10 and the Rch horn unit 11 at the left and right ends, respectively. The Lch horn unit 10 and the Rch horn unit 11 form a symmetrical structure with the headband unit 9 as the center. The cable 6 includes a lead wire, which will be described later, and is connected to the Lch horn unit 10 and the Rch horn unit 11. The Lch horn unit 10 and the Rch horn unit 11 each include a housing 2 and a head pad 4.

FIG. 3 is a cross-sectional view showing the Lch horn unit 10 of the headphone device 400 of the present embodiment.
The Lch horn unit 10 includes a flange 3, a substrate 5, a driver unit 7, a vibration unit 15, a signal processing unit 16, and a boss 17 in addition to the housing 2 and the head pad 4 described above.
In the Lch horn unit 10 shown in FIG. 3, the left direction is the inner side of the headphone device 400, and the upper side is the upper side of the headphone device 400.

  In the present embodiment, it is assumed that the Lch horn unit 10 and the Rch horn unit 11 have a symmetrical structure, and the description of the Rch horn unit 11 is omitted.

  As shown in FIG. 3, the housing 2 forms a cylindrical shape having a hollow inside and opened at the front, and includes a hole 201 penetrating in the front-rear direction. The flange 3 forms a disk shape with a depressed central portion and includes a hole 301 penetrating in the front-rear direction substantially in the center. The outer peripheral portion of the rear surface of the flange 3 is fixed to the front end of the housing 2 with an adhesive or the like.

  The head pad 4 is formed in a cylindrical shape with an open center by an elastic body such as a highly flexible rubber member, and the back surface is fixed to the outer peripheral portion in front of the flange 3 with an adhesive or the like.

  The driver unit 7 includes a diaphragm (not shown) on the front, and the front surface is fixed to the outer peripheral portion of the hole 301 on the rear surface of the flange 3 with an adhesive or the like. At this time, the driver unit 7 is exposed from the hole 301 of the flange 3. The substrate 5 forms a plate shape and is disposed behind the driver unit 7. The substrate 5 is fixed to the boss 17 fixed to the rear surface of the flange 3 with a screw (not shown) by a screw (not shown), whereby the substrate 5 is held by the flange 3. The driver unit 7 is electrically connected to the substrate 5 by lead wires 701. The signal processing unit 16 is fixed to the rear surface of the substrate 5 by soldering or the like, and is electrically connected to the substrate 5.

  One end of the cable 6 is inserted into the housing 2 through the hole 201 of the housing 2, and a knot 601 is formed inside the housing 2. The cable 6 is configured not to drop downward from the inside of the housing 2 by the knot 601. The lead wire 602 protrudes from one end of the cable 6 in which the knot 601 is formed inside the housing 2. The lead wire 602 is electrically connected to the substrate 5.

  The vibrating portion 15 is fixed to the inner wall of the hole 302 penetrating in the front-rear direction provided in the upper portion of the flange 3 with an adhesive or the like, and the tip portion protrudes into the head pad 4 so as to be close to the surface of the head pad 4. Arranged. The vibration unit 15 is electrically connected to the substrate 5 by a lead wire 602.

  The headphone device 400 inputs an audio signal output from the headphone output unit 3006 of the mixing device 300 shown in FIG. The L channel audio signal and the L channel beat signal output from the headphone output unit 3006 shown in FIG. 1 are input to the substrate 5 of the Lch horn unit 10 via the cable 6 and output from the headphone output unit 3006. The R channel audio signal and the R channel beat signal are input to the substrate 5 of the Rch horn unit 11 via the cable 6.

  The signal processing unit 16 outputs the L channel audio signal input to the substrate 5 to the driver unit 7 via the lead wire 602. The driver unit 7 emits the L channel audio signal output from the signal processing unit 16. In the Rch horn unit 11 shown in FIG. 2, an R channel audio signal is emitted from the driver unit 7 of the Rch horn unit 11.

  The signal processing unit 16 outputs the L-channel beat signal input to the substrate 5 to the vibration unit 15 via the lead wire 602. The vibration unit 15 includes a vibration element (not shown), and vibrates the vibration element when an L-channel beat signal input from the signal processing unit 16 is output. In the Rch horn unit 11 shown in FIG. 2, when the vibration unit 15 of the Rch horn unit 11 outputs an R channel beat signal from the signal processing unit 16, the vibration element is vibrated.

FIG. 4 is a diagram illustrating a state in which the user wears the headphone device 400 of the present embodiment.
In FIG. 4, the left direction is the right side of the user, and the right side is the left side of the user.

  As shown in FIG. 4, the user 20 wears the Lch horn unit 10 of the headphone device 400 on the right ear 22 and the Rch horn unit 11 on the left ear 21, with the headphones of the mixing device 300 shown in FIG. 1. The left channel 21 listens to the L channel audio signal output from the output unit 3006, and the right channel 22 listens to the R channel audio signal output from the headphone output unit 3006. At this time, vibration is generated from the vibration unit 15 of the Lch horn unit 10 in synchronization with the beat timing of the L channel audio signal emitted from the driver unit 7 of the Lch horn unit 10, Vibration is generated from the vibration unit 15 of the Rch horn unit 11 in synchronization with the beat timing of the R channel audio signal emitted from the driver unit 7.

  When vibration is generated from the vibration unit 15 of the Lch horn unit 10, the user 20 transmits the vibration to the periphery of the left ear 21 via the head pad 4, thereby generating vibration generated from the vibration unit 15 of the Lch horn unit 10. Is sensed by the left temporal region, and when vibration is generated from the vibration part 15 of the Rch horn part 11, the vibration is transmitted to the periphery of the right ear 22 via the head pad 4. The vibration generated from the vibration part 15 is experienced with the right temporal region.

  Therefore, the user 20 listens to the first audio signal that is an L channel audio signal from the Lch horn unit 10 with the left ear 21, and receives the second audio signal that is an R channel audio signal from the Rch horn unit 11. When listening with the right ear 22, the beat of the first audio signal is sensed by vibration on the left temporal region, and the beat of the second audio signal is sensed by vibration on the right temporal region.

  Thus, in the DJ playback system 1 of the present embodiment, the user 20 wears the headphone device 400, and for example, the first audio signal being played back by the first playback device 100 is the Lch horn of the headphone device 400. When the second audio signal output from the unit 10 and being played back by the second playback device 200 is output from the Rch horn unit 11 of the headphone device 400, the loud music and surroundings output from the speaker Even if the first audio signal and the second audio signal output from the Lch horn unit 10 and the Rch horn unit 11 become difficult to hear due to the cheers of the audience, the user 20 can The beat is grasped with the left temporal region where the Lch horn unit 10 is mounted, and the beat of the second audio signal is mounted with the Rch horn unit 11. It can be grasped in the right side of the head. For this reason, even when the first audio signal and the second audio signal output from the Lch horn unit 10 and the Rch horn unit 11 are difficult to hear, the user 20 can detect vibrations detected by the right temporal region. By operating the pitch control of each of the first playback device 100 and the second playback device 200 so that the vibration grasped by the left temporal region has the same tempo, the first audio signal and the second audio signal The tempo of the audio signal can be easily adjusted.

  The headphone device 400 of the DJ playback system 1 of this embodiment generates vibration when the vibration unit 15 provided in each of the Lch horn unit 10 and the Rch horn unit 11 inputs the first beat signal and the second beat signal. However, it may be configured to include a vibration adjustment unit that can adjust the strength of vibration generated by the vibration unit 15. In this case, for example, a rotatable dial is provided on the surface of each housing 2 of the Lch horn unit 10 and the Rch horn unit 11 of the headphone device 400, and the oscillating unit 15 provided in each horn unit by rotating the dial. It is set as the structure from which the intensity of vibration changes. As a result, the user 20 wearing the headphone device 400 adjusts the strength of the vibration generated at the timing of the beat from the vibration unit 15 according to the music output from the speaker and the cheer of the surrounding audience. Thus, the beat of the first audio signal and the beat of the second audio signal can be grasped more accurately.

  In the DJ playback system 1 of this embodiment, the vibration unit 15 is fixed to the flange 3 of the headphone device 400, and the tip portion protrudes into the head pad 4 so as to be close to the surface of the head pad 4. However, if the user 20 can grasp the timing of the beat of the audio signal, for example, the vibration unit 15 may be provided on both sides of the headband unit 9, or the headphone device 400 may be provided. It is good also as a structure provided with the vibration part 15 in the location which is different from these, and the user 20 can grasp | ascertain a vibration.

  The DJ playback system 1 of the present embodiment generates beats synchronized with the first audio signal and the first audio signal from the Lch horn unit 10 as vibrations, and the second audio signal and the second audio signal from the Rch horn unit 11. If the headphone device 400 does not need to hear and compare two audio signals, the horn unit of either the Lch horn unit 10 or the Rch horn unit 11 is used. It is good also as a structure which generate | occur | produces an audio signal and vibration only from Lch horn part 10, and the structure which generate | occur | produces the same audio signal and vibration from Lch horn part 10.

  The DJ playback system 1 of the present embodiment has a system configuration including the first playback device 100, the second playback device 200, and the mixing device 300. However, the present invention is not limited to these configurations. A configuration may be adopted in which an audio signal and a beat signal are output from the DJ device to the headphone device using an integrated DJ device in which the configuration of the mixing device is a single device. In addition to these DJ devices, for example, a system called PCDJ that arranges and reproduces audio data in the same manner as the performance performed by the DJ using a personal computer (Personal Computer (PC)) and dedicated software. The audio signal and the beat signal may be output from the PCDJ to the headphone device.

  INDUSTRIAL APPLICABILITY The present invention can be effectively used in a DJ playback system in which a disc jockey or the like attaches a headphone device and operates a playback device and a mixing device to mix audio signals.

1 DJ playback system,
2 housing, 201 holes,
3 flange, 301 hole, 302 hole, 4 head pad, 5 substrate,
6 Cable, 601 knot, 602 lead wire,
7 Driver unit, 701 Lead wire, 8 Input terminal,
9 Headband part, 901 hole,
10 Lch horn, 11 Rch horn,
15 vibration part, 16 signal processing part, 17 boss,
20 users, 21 left ear, 22 right ear 100 first playback device,
1001 operation unit, 1002 audio signal output unit,
1003 beat signal output unit, 1004 playback unit, 1005 control unit,
200 second playback device,
2001 operation unit, 2002 audio signal output unit,
2003 beat signal output unit, 2004 playback unit, 2005 control unit,
300 mixing equipment,
3001 first audio signal input unit, 3002 second audio signal input unit,
3003 operation unit, 3004 mixing unit, 3005 master output unit,
3006 Headphone output unit, 3007 control unit,
3011 1st beat signal input part, 3012 2nd beat signal input part,
400 Headphone device

Claims (4)

In a DJ playback system comprising: a mixing device that outputs an audio signal obtained by mixing a plurality of audio signals; and a headphone device that outputs an audio signal output from the mixing device.
The mixing device outputs a beat signal at a timing corresponding to a beat position in the audio signal and the audio signal,
The headphone device includes a driver unit that outputs an audio signal output from the mixing device, and a vibration unit that outputs a beat signal output from the mixing device as vibration. The playback system for DJ according to claim 1,
The mixing device mixes audio signals reproduced by the first reproduction device and the second reproduction device,
The first playback device outputs a first beat signal at a timing corresponding to a beat position in the first audio signal and the first audio signal,
The second playback device outputs a second beat signal at a timing corresponding to a beat position in the second audio signal and the second audio signal,
The mixing device outputs the first audio signal and the first beat signal output from the first playback device, and the second audio signal and the second beat output from the second playback device. Output signal,
The headphone device includes an Lch horn unit and an Rch horn unit for outputting the first audio signal and the second audio signal output from the mixing device, respectively.
The DJ playback system, wherein the Lch horn unit and the Rch horn unit each include a vibration unit that outputs the first beat signal and the second beat signal output from the mixing device as vibrations. The DJ playback system according to claim 1 or 2,
The Lch horn part and the Rch horn part each include a flange and a head pad,
The DJ reproducing system, wherein the vibrating portion is fixed to the flange and disposed so that a tip portion thereof is close to the surface of the head pad 4. The DJ playback system according to any one of claims 1 to 3,
The DJ playback system according to claim 1, wherein the headphone device includes a vibration adjustment unit capable of adjusting a strength of vibration by the vibration unit.

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