JP2019012119A - Microphone device, karaoke system - Google Patents

Abstract

To provide a single microphone device which enables comfortable karaoke singing.SOLUTION: The microphone device is a unit for outputting an audio signal acquired based on a singing of a karaoke song, which comprises a plurality of microphone units which are subjected to different acoustic tuning, a switching unit which switches the audio signal output from the plurality of microphone units based on unit selection information for selecting a microphone unit in which an optimum acoustic tuning for the singing is applied for each singing section of the karaoke song.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a microphone device and a karaoke system including the microphone device.

  There are various types of microphone devices having different directivity characteristics and frequency characteristics depending on the application. For example, an omnidirectional microphone device is used when collecting sounds of a plurality of people in a conference or the like. In addition, a directional microphone device is used when it is desired to collect only the sound of a specific target person from various sounds.

  On the other hand, one microphone device has a plurality of directivity characteristics, and one microphone device can switch frequency characteristics.

  For example, in Patent Document 1, a plurality of sound receiving elements are built in one housing, and the outputs of the sound receiving elements are combined to create an omnidirectional characteristic, a bidirectional characteristic, a high-order bidirectional characteristic, And a microphone device capable of obtaining a combined directivity characteristic in a predetermined direction by extracting output signals of those synergistic directivity characteristics and performing a predetermined coordinate transformation calculation and then combining them. Such a microphone device can select and receive a sound in an arbitrary direction by performing an arbitrary coordinate transformation calculation while being fixed at a predetermined position.

  Patent Document 2 discloses a microphone device in which a preamplifier circuit board capable of changing frequency characteristics is provided in a microphone casing, and parameters for determining frequency characteristics can be stored in a memory cartridge. Such a microphone device can have a frequency characteristic that matches the voice quality of the singer by tuning an analog circuit connected to one sound receiving element and switching the frequency characteristic.

  Further, Non-Patent Document 1 describes a digital signal processor (DSP) that can change the frequency characteristics of a microphone device. This DSP is equipped with a microphone modeling function for realizing various frequency characteristics in one microphone device.

JP-A-6-269082 JP 2011-135310 A

“MIC800 (MINIMIC)”, [online], BEHRINGER, Inc. [searched on June 20, 2017], Internet <URL: http://www.music-group.com/Categories/Behringer/Signal-Processors/Microphone -Preamplifiers / MIC800 / p / P0335>

  By the way, there is a case where “sucking is good / bad” is evaluated for the performance of the microphone device used in the karaoke field. “Good sucking” means that when a singing karaoke is performed using a certain microphone device, it feels easy to sing or feels easy to hear the singing voice. Conversely, “bad suction” means that when a karaoke song is performed using a certain microphone device, it is difficult to sing or it is difficult to hear the singing voice. The operator who judges the performance of the microphone device evaluates whether the microphone device is sucked in or out depending on the ease of singing when using a certain microphone device and the ease of listening to the obtained singing voice. A singer who actually performs karaoke singing is able to perform comfortable karaoke singing by using a microphone device that can be sucked well.

  If the suction is bad, the operator tunes the microphone device. This tuning is a mechanical process that adjusts the position of the microphone unit provided in the microphone device so as to improve the suction (so that a comfortable karaoke singing can be performed). Sometimes referred to as “acoustic tuning”).

  Here, the optimal acoustic tuning state differs depending on the singing section (A melody, B melody, rust, etc.). For example, if tuning is performed so that the suction when singing the A melody or B melody of the song is improved, the chorus feels clogged, and if tuning is performed so that the suction when singing the rust is improved, A It seems that melody and B melody are difficult to sing. That is, when acoustic tuning is performed so that suction is improved in a certain singing section, there is a problem that suction is worsened in another singing section.

  Therefore, tuning has been performed so far that the suction in all singing sections does not deteriorate. That is, in the conventional single microphone device, the suction in all the singing sections cannot be improved. Therefore, in some singing sections, there is a case where the user feels bad ingestion and cannot perform comfortable karaoke singing.

  An object of the present invention is to provide a technique that enables comfortable karaoke singing using a single microphone device.

One invention for achieving the above object is a unit that outputs an audio signal acquired based on singing karaoke music, and a plurality of microphone units that have been subjected to different acoustic tuning, A switching unit for switching the audio signals output from the plurality of microphone units based on unit selection information for selecting a microphone unit subjected to acoustic tuning for each singing section of the karaoke music piece; A microphone device.
Other characteristics of the present invention will be made clear by the description and drawings described later.

  According to the present invention, comfortable karaoke singing is possible using a single microphone device.

It is a figure showing the outline of the karaoke system concerning a 1st embodiment. It is a figure which shows the hardware structural example of the karaoke apparatus which concerns on 1st Embodiment. It is a figure which shows the hardware structural example of the microphone apparatus which concerns on 1st Embodiment. It is a figure which shows the hardware structural example of the microphone apparatus which concerns on 2nd Embodiment. It is a figure which shows the hardware structural example of the karaoke apparatus which concerns on 2nd Embodiment.

  In addition to the main invention described above, at least the following matters will become apparent from the description of the specification and drawings described below.

  That is, a karaoke system that performs karaoke music performance and a karaoke system that includes a microphone device, and the karaoke device performs an acoustic-optimal singing to the microphone device as the karaoke music performance progresses. A voice processing unit having a transmission processing unit for sequentially transmitting unit selection information for selecting a tuned microphone unit for each singing section of the karaoke song, and the microphone device acquiring based on the singing of the karaoke song A plurality of microphone units that have been subjected to different acoustic tunings, and the audio signals output from the plurality of microphone units based on the unit selection information transmitted from the karaoke apparatus. Switching to switch When become apparent karaoke system with. According to such a karaoke system, karaoke singing can be performed comfortably using a single microphone device.

  Or it is a karaoke system including a karaoke device that performs a performance of karaoke music and a microphone device, and the microphone device is a unit that transmits an audio signal acquired based on the singing of the karaoke music to the karaoke device. A unit that has a plurality of microphone units that have been subjected to different acoustic tunings, and in which the karaoke apparatus selects, for each singing section of the karaoke music, a microphone unit that has been subjected to the acoustic tunings that is optimal for singing Based on the selection information, a karaoke system having a switching unit that switches the audio signals output from the plurality of microphone units becomes clear. Even with such a karaoke system, karaoke singing can be performed comfortably using a single microphone device. Moreover, according to such a karaoke system, the configuration of the microphone device can be simplified.

  Further, when the switching unit performs switching of the audio signal, a microphone device or a karaoke system that performs switching so that the audio signal at that time and the audio signal after switching are cross-fade becomes clear. According to such a microphone device or a karaoke system, the voice signal can be switched more smoothly, and the singing voice emitted from the karaoke device can be reduced from becoming unnatural.

<First Embodiment>
A karaoke system 1000 according to the first embodiment will be described with reference to FIGS.

== Karaoke system ==
As shown in FIG. 1, a karaoke system 1000 according to this embodiment includes a karaoke device 1 and a microphone device 50.

  The karaoke apparatus 1 is an apparatus for performing karaoke music and for a singer to perform karaoke singing.

  The karaoke apparatus 1 includes a karaoke main body 10, a speaker 20, a display device 30, and a remote control device 40. The karaoke main body 10 performs various controls related to karaoke singing, such as performance control of selected karaoke music and display control of lyrics and background video. The speaker 20 is configured to emit sound based on the sound emission signal from the karaoke main body 10. The display device 30 is configured to display a video or an image on the screen based on a signal from the karaoke main body 10. The remote control device 40 is a device for performing various operations on the karaoke device 1.

  The microphone device 50 is configured to acquire a singer's singing voice and output it to the karaoke main body 10. As the microphone device 50, one that has been subjected to acoustic tuning in advance is used.

  As described above, the acoustic tuning is a mechanical tuning that adjusts the position or the like of the microphone unit provided in the microphone device 50 so that the microphone device 50 can be sucked in better. Here, there is acoustic tuning that is optimal for singing depending on the singing section (A melody, B melody, rust, etc.) of the karaoke music. The microphone device 50 according to the present embodiment includes a first microphone unit 55 and a second microphone unit 56, and each is subjected to different acoustic tuning (details will be described later).

== Karaoke body ==
[Hardware configuration]
As shown in FIG. 2, the karaoke main body 10 includes a communication unit 11, a storage unit 12, an acoustic processing unit 13, a display processing unit 14, an operation unit 15, and a control unit 16. Each component is connected to the bus B via an interface (not shown).

(Communication Department)
The communication unit 11 provides an interface for connecting the karaoke main body 10 to the remote control device 40 and the microphone device 50 via a router (not shown).

(Memory part)
The storage unit 12 is a large-capacity storage device that stores various types of data, such as a hard disk drive. The storage unit 12 stores a plurality of music data for performing karaoke performance by the karaoke apparatus 1.

  The music data is given identification information (music ID) for specifying individual karaoke music. The music data includes accompaniment data, reference data, and the like. Accompaniment data is MIDI format data that is the source of karaoke performance sounds. The accompaniment data includes information for identifying the singing section (A melody, B melody, chorus, etc.) of the karaoke music. Reference data is data used as a reference when scoring a karaoke song by a singer. The storage unit 12 also includes lyrics telop data including various information for presenting lyrics telop corresponding to each song, background image data corresponding to a background image displayed on the display device 30 and the like in accordance with karaoke performance, and Stores attribute information of karaoke music (information on the karaoke music such as song name, singer name, lyrics / composer name, and genre).

  Moreover, the memory | storage part 12 memorize | stores the unit selection information set for every song section of each music. The unit selection information is information for selecting, for each singing section of karaoke music, a microphone unit that has been subjected to acoustic tuning that is optimal for singing. Specifically, the unit selection information is information for identifying each unit, such as a unit ID for A melody / B melody or a unit ID for rust.

(Sound processing unit)
Based on the control of the control unit 16, the acoustic processing unit 13 performs performance control on the karaoke music piece and processes an audio signal input through the microphone device 50. The display processing unit 14 performs processing related to various displays on the display device 30 based on the control of the control unit 16. The operation unit 15 includes a panel switch and a remote control receiving circuit. The operation unit 15 sends operation signals such as a music selection signal and a performance stop signal to the control unit 16 according to the operation of the panel switch of the karaoke main body 10 or the remote control device 40 by the singer. Output. The control unit 16 detects an operation signal from the operation unit 15 and executes a corresponding process.

(Control part)
The control unit 16 controls various processes of the karaoke main body 10. The control unit 16 includes a CPU and a memory (both not shown). The CPU implements various control functions by executing operation programs stored in the memory. The control unit 16 according to the present embodiment functions as the performance processing unit 100 and the transmission processing unit 200.

  The performance processing unit 100 performs a karaoke performance based on the accompaniment data. When the performance processing unit 100 receives an input of a song ID of a certain karaoke song, the performance processing unit 100 reads the song data corresponding to the song ID from the storage unit 12 and performs the karaoke performance of the karaoke song. Further, the performance processing unit 100 outputs information indicating a singing section to be played next to the transmission processing unit 200 as the karaoke performance progresses.

  The transmission processing unit 200 sequentially transmits unit selection information to the microphone device 50 as the performance of the karaoke musical piece progresses. Specifically, when the transmission processing unit 200 receives information indicating a song section to be played next from the performance processing unit 100, the transmission processing unit 200 reads out unit selection information set for the song section from the storage unit 12, It transmits to the microphone device 50 via the communication unit 11.

== Microphone device ==
[Hardware configuration]
FIG. 3 is a diagram illustrating a hardware configuration example of the microphone device 50. The microphone device 50 includes a microphone main body 51, a head case 52, a wind screen 53, a partition 54, a first microphone unit 55, a second microphone unit 56, two analog circuits AC, and a switching unit 57.

  The microphone main body 51 is a portion that is held when a singer uses the microphone device 50. A head case 52 is provided on the distal end side of the main body 51. The head case 52 is a mesh-like metal member that protects the internal configuration of the microphone device 50. The wind screen 53 is a sponge-like member for preventing the singer from directly hitting the microphone unit. The head case 52 may have the same function as the wind screen 53. The partition 54, the first microphone unit 55, the second microphone unit 56, and the switching unit 57 are provided inside the microphone device 50 (inside the microphone main body 51 or the head case 52).

  The partition 54 is a plate-like member disposed inside the microphone device 50. The partition 54 serves as a wall that separates the first microphone unit 55 and the second microphone unit 56.

  The first microphone unit 55 and the second microphone unit 56 are units that output audio signals acquired based on singing karaoke music.

  Each microphone unit includes a sound receiving element. The sound receiving element is an element that receives an input of a singer's singing voice. The sound receiving element outputs the input singing voice to the analog circuit AC. The analog circuit AC converts the singing voice into an analog voice signal. The analog circuit AC outputs the audio signal to the switching unit 57. That is, a plurality of audio signals acquired by different microphone units are simultaneously input to the switching unit 57. As the sound receiving element and the analog circuit AC, substantially the same one can be used for each microphone unit.

  The first microphone unit 55 and the second microphone unit 56 are subjected to different acoustic tunings.

  As shown in FIG. 3, the first microphone unit 55 is provided at a distance R <b> 1 from the tip of the head case 52. On the other hand, the second microphone unit 55 is provided at a position of a distance R2 longer than the distance R1 from the tip of the head case 52. Further, the wind screen 53 covers the second microphone unit 56 in a wider range than the first microphone unit 55. Such a state in which the position of the microphone unit is adjusted and a state in which the range of the wind screen 53 covering the microphone unit is adjusted are examples in which acoustic tuning is performed. In FIG. 3, the distance from the head case 52 to the microphone unit and the range of the wind screen 53 are exaggerated for explanation. Actually, the difference between the distance R1 and the distance R2 is about 1 to 5 mm. Further, the range of the wind screen 53 is also set by adjusting in units of 1 mm while confirming suction.

  In this example, it is assumed that the first microphone unit 55 is tuned for A melody and B melody, and the second microphone unit 56 is tuned for rust.

  The acoustic tuning applied to the microphone unit is not limited to the configuration shown in FIG. 3 as long as the microphone device 50 can be sucked. For example, the direction of the microphone unit may be changed, the position or angle of the partition 54 with respect to the microphone unit may be changed, or the thickness of the wind screen 53 with respect to each microphone unit may be adjusted.

  The switching unit 57 switches the audio signals output from the plurality of microphone units based on the unit selection information transmitted from the karaoke apparatus 1. The switching unit 57 transmits the switched audio signal to the karaoke apparatus 1 via a communication unit (not shown).

  For example, when unit selection information (unit ID for A melody / B melody) indicating A melody / B melody is received from the transmission processing unit 200, the switching unit 57 is the first tuned for A melody / B melody. The microphone unit 55 is selected, and the audio signal from the first microphone unit 55 is transmitted to the karaoke apparatus 1. The karaoke apparatus 1 (sound processing unit 13) emits a singing voice of A melody or B melody based on the voice signal. The audio signal is obtained by a microphone unit that has been subjected to acoustic tuning that is optimal for singing A melody and B melody. Therefore, since the suction is good, the singer can enjoy a comfortable karaoke song.

  After that, it is assumed that the switching unit 57 receives unit selection information (rust unit ID) indicating rust from the transmission processing unit 200 as the karaoke performance progresses. In this case, the switching unit 57 uses the audio signal output from the first microphone unit 55 as the audio signal to be transmitted to the karaoke apparatus 1, and the audio signal output from the second microphone unit 56 tuned for chorus. Switch to. The karaoke apparatus 1 (sound processing unit 13) emits a chorus singing voice based on the voice signal. The audio signal is obtained by a microphone unit that has been subjected to acoustic tuning that is optimal for chorus singing. Therefore, since the suction is good, the singer can continue to enjoy a comfortable karaoke song.

  In addition, when switching the audio signal, the switching unit 57 can also perform switching so that the audio signal at that time and the audio signal after the switching cross-fade. Cross fade is a process of gradually weakening the output of one audio signal and gradually increasing the output of the other audio signal.

  For example, in the above example, the switching unit 57 switches the audio signal transmitted to the karaoke apparatus 1 from the audio signal output from the first microphone unit 55 to the audio signal output from the second microphone unit 56. Is performed, the output of the audio signal output from the second microphone unit 56 is gradually increased while the output of the audio signal output from the first microphone unit 55 is gradually weakened. In this case, the singing sound emitted from the karaoke apparatus 1 can also be heard in a crossfade state. Therefore, the voice signal can be switched more smoothly, and the singing voice emitted from the karaoke apparatus is reduced from becoming unnatural.

  As described above, the microphone device 50 according to the present embodiment is a unit that outputs an audio signal acquired based on the singing of the karaoke music piece, and the first microphone unit 55 and the second microphone unit that have been subjected to different acoustic tunings. First microphone unit 55 or second microphone unit based on unit selection information for selecting each microphone unit 56 and a microphone unit subjected to acoustic tuning optimal for singing for each singing section of karaoke music And a switching unit 57 that switches the audio signal output from 56. In addition, the karaoke system 1000 according to the present embodiment includes a transmission processing unit 200 that sequentially transmits the unit selection information as the performance of the karaoke song progresses.

  By using such a single microphone device 50, an audio signal from a microphone unit that has been subjected to acoustic tuning optimal for singing can be transmitted to the karaoke device 1 for each singing section of karaoke music. It becomes possible. Therefore, since the singing voice emitted by the karaoke apparatus 1 is also sucked in, the singer can perform a comfortable karaoke singing regardless of the singing section.

Second Embodiment
Next, with reference to FIG.4 and FIG.5, the karaoke system 1000 which concerns on 2nd Embodiment is demonstrated. In the present embodiment, a configuration corresponding to the switching unit 57 is provided on the karaoke apparatus 1 side. Detailed description of the same configuration as that of the first embodiment will be omitted.

  As shown in FIG. 4, the microphone device 50 includes a first microphone unit 55 and a second microphone unit 56 that have been subjected to different acoustic tunings as in the first embodiment. On the other hand, the microphone device 50 according to the present embodiment does not have a configuration corresponding to the switching unit 57. Therefore, the audio signal acquired by each microphone unit based on the singing of the karaoke music is directly transmitted to the karaoke apparatus 1.

  As shown in FIG. 5, the control unit 16 of the karaoke apparatus 1 functions as a performance processing unit 300, a reading unit 400, and a switching unit 500.

  The performance processing unit 300 performs a karaoke performance based on the accompaniment data. In addition, the performance processing unit 300 outputs information indicating a singing section to be played next to the reading unit 400 as the karaoke performance progresses.

  The reading unit 400 reads unit selection information corresponding to the next song section to be played from the storage unit 12 and outputs the unit selection information to the switching unit 500.

  Switching unit 500 switches audio signals output from a plurality of microphone units based on the unit selection information.

  For example, when unit selection information (unit ID for A melody / B melody) indicating A melody / B melody is input from the reading unit 400, the switching unit 500 is tuned for A melody / B melody. One microphone unit 55 is selected, and an audio signal from the first microphone unit 55 is output to the acoustic processing unit 13. Based on the control of the control unit 16, the acoustic processing unit 13 emits a singing voice of A melody or B melody based on the voice signal. The audio signal is obtained by a microphone unit that has been subjected to acoustic tuning that is optimal for singing A melody and B melody. Therefore, since the suction is good, the singer can enjoy a comfortable karaoke song.

  Thereafter, it is assumed that switching unit 500 receives unit selection information (unit ID for rust) indicating rust from reading unit 400 as the karaoke performance progresses. In this case, the switching unit 500 uses the audio signal output from the first microphone unit 55 for the audio signal output to the acoustic processing unit 13, and the audio output from the second microphone unit 56 tuned for rust. Switch to signal. The acoustic processing unit 13 emits the chorus singing voice based on the voice signal based on the control of the control unit 16. The audio signal is obtained by a microphone unit that has been subjected to acoustic tuning that is optimal for chorus singing. Therefore, since the suction is good, the singer can continue to enjoy a comfortable karaoke song. Note that, as with the switching unit 57 of the first embodiment, the switching unit 500 performs switching so that the audio signal at that time and the audio signal after switching cross-fade when switching the audio signal. It is also possible.

  Thus, also by the karaoke system 1000 which concerns on this embodiment, karaoke singing can be performed comfortably irrespective of a singing area by using the single microphone apparatus 50. FIG. Further, according to the karaoke system 1000 according to the present embodiment, since there is no need to provide a switching unit on the microphone device 50 side, the configuration on the microphone device side can be simplified.

<Others>
In addition to the acoustic tuning in the above-described embodiment, the suction can be improved by using the tuning in the analog circuit AC together. The analog circuit AC is tuned by changing the capacity and type (ceramic, film) of the coupling capacitor in the audio signal path. It is also possible to correct the frequency characteristics of each microphone unit affected by the acoustic tuning by tuning the analog circuit AC.

  In the above embodiment, two microphone units have been described as an example. However, the number of microphone units is not limited to two. For example, another microphone unit may be provided for karaoke music with C melody. Or in the said embodiment, you may divide a microphone unit further for A melody and B melody. In these cases, the microphone device 50 has three microphone units. At that time, the acoustic tuning applied to the microphone unit is different. For example, the microphone unit for A melody is tuned similarly to the first microphone unit 55 of the above embodiment, the microphone unit for rust is tuned similarly to the second microphone unit 56 of the above embodiment, and B The microphone unit for melo can be an intermediate tuning between the first microphone unit 55 and the second microphone unit 56.

  The above embodiment is presented as an example and does not limit the scope of the invention. The above configurations can be implemented in appropriate combination, and various omissions, replacements, and changes can be made without departing from the scope of the invention. The above-described embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof in the same manner as included in the scope and spirit of the invention.

DESCRIPTION OF SYMBOLS 1 Karaoke apparatus 10 Karaoke main body 50 Microphone apparatus 55 1st microphone unit 56 2nd microphone unit 57 Switching part 200 Transmission processing part 1000 Karaoke system

Claims (5)

A unit that outputs an audio signal acquired based on singing a karaoke song, and a plurality of microphone units subjected to different acoustic tunings,
The audio signals output from the plurality of microphone units are switched based on unit selection information for selecting the microphone unit that has been acoustically tuned optimally for singing for each singing section of the karaoke music piece. A switching unit;
A microphone device.   The microphone device according to claim 1, wherein when the audio signal is switched, the switching unit performs switching so that the audio signal at that time and the audio signal after the switching are cross-fade. A karaoke system including a karaoke device for performing karaoke music and a microphone device,
The karaoke device
As the performance of the karaoke song progresses, unit selection information for sequentially selecting a microphone unit subjected to acoustic tuning suitable for singing for each singing section of the karaoke song is sequentially transmitted to the microphone device. A transmission processing unit,
The microphone device is
A unit that outputs an audio signal acquired based on the singing of the karaoke music piece, and a plurality of microphone units subjected to different acoustic tunings;
Based on the unit selection information transmitted from the karaoke device, a switching unit that switches the audio signals output from the plurality of microphone units,
Karaoke system with A karaoke system including a karaoke device for performing karaoke music and a microphone device,
The microphone device is
A unit that transmits an audio signal acquired based on the singing of the karaoke song to the karaoke device, and has a plurality of microphone units that have been subjected to different acoustic tunings.
The karaoke device
The audio signals output from the plurality of microphone units are switched based on unit selection information for selecting the microphone unit that has been acoustically tuned optimally for singing for each singing section of the karaoke music piece. A karaoke system having a switching unit.   5. The karaoke according to claim 3, wherein when the audio signal is switched, the switching unit performs switching so that the audio signal at that time and the audio signal after the switching are cross-faded. 6. system.

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