JP2008209597A - Karaoke device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a karaoke device 1 which provides only the singer 6 of a guide sound to support singing without being noticed by other customers. <P>SOLUTION: The karaoke device 1 outputs the sound of a directional beam 6a composed of the guide sound (guide vocal, guide melody, phrase, metronome, etc.) only to the singing position of the singer 6. When the guide vocal and the guide melody are selected as the guide sound, the singing melody of the karaoke music can be informed to the singer 6. Also, when the phrase is selected as the guide sound, countdown such as "three, two, one" is output to inform the singer 6 of timing to start singing the karaoke music. Moreover, during an a capella part, when the metronome is selected as a guide sound, the tempo of the karaoke music can be informed to the singer 6. Therefore, the singer 6 can sing the song rather well simply by singing the song according to the guide sound. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a karaoke apparatus having a function of supporting a singer's singing.

  Conventional karaoke apparatuses are often installed in one room such as a karaoke box or a restaurant such as a snack shop.

A conventional karaoke apparatus uses a stereo speaker to amplify accompaniment sounds and singing sounds throughout the place where the karaoke apparatus is installed. In this case, the singing voice of the singer, the guide vocal, etc. can be heard by all in the store. For customers other than singers, the singing voices of singers who are not good at singing or who are practicing singers are not necessarily audible, and may be annoying in some cases. In order to solve this, for example, a directional speaker for a singer was installed, the singer was allowed to listen to the singing voice, and the non-singer was allowed to listen to the guide vocal (see Patent Document 1).
JP 2005-173137 A

  In a conventional karaoke apparatus, a guide vocal is emitted together with a karaoke song to support a singer's singing. However, besides the guide vocal, there was no way to support singing. For example, if there is a singing instruction, the singer can sing better. In the conventional karaoke apparatus, there is no one that outputs such a guide sound, and even if it exists, there is a problem that the guide sound can be heard by other customers as well as the guide vocal.

  Then, this invention is providing the karaoke apparatus which emits a various guide sound only to a singer in order to support a singer's singing.

  The invention according to claim 1 is a first microphone for collecting singing voice, a first sound collecting means for generating a voice signal from the singing voice collected by the first microphone, and the first sound collecting. A sound output means for generating a directional beam for emitting a guide sound for supporting the singing of the singer toward the singing position of the singer, and emitting a sound signal generated by the means; And a speaker array that emits a directional beam generated by the means.

  In this configuration, the karaoke apparatus emits the collected sound collected by the microphone and generates a guide sound beam including a guide sound for supporting the singing of the singer with respect to the singing position of the singer. And release it. Thereby, the karaoke apparatus can emit a guide sound with directivity only to the singer. For this reason, the singer can hear the guide sound (timing of singing, rhythm, etc.) which supports singing without being noticed by other customers. Moreover, the singer can sing well to some extent by singing according to the guide sound.

  The invention according to claim 2 is characterized in that the sound emitting means generates the guide sound based on a scoring result obtained by sequentially scoring the singing voice of the singer collected by the first sound collecting means. .

  In this structure, a singer's song is scored sequentially, a guide sound is produced | generated and emitted based on the scoring result. Thereby, the karaoke apparatus can provide an appropriate message as a guide sound according to the singing contents up to now. Therefore, it is possible to immediately detect that the pitch is shifted or the singing is delayed, and that effect can be provided as a guide sound.

  The invention of claim 3 further includes a history storage means for storing a history of scoring results obtained by sequentially scoring the singing voice of the singer collected by the first sound collection means, and the sound emitting means includes the history storage means. The guide sound is generated based on a history of scoring results stored by the means.

  In this configuration, the singer's singing result is accumulated, and a guide sound is generated and emitted based on the past grading result. Thereby, the karaoke apparatus can provide the message according to a song person's personal song as a guide sound. Moreover, the karaoke apparatus can provide an appropriate message as a guide sound at a location where the previous failure has occurred or where there is a high frequency of failure.

  The invention of claim 4 further comprises: a second microphone for collecting sound; and second sound collecting means for generating the guide sound from the sound collected by the second microphone. To do.

  In this configuration, the sound collected by the microphone different from that for collecting the singing voice is emitted to the singer as a guide sound. Thereby, in a karaoke tournament etc., the teacher of a karaoke classroom can instruct | indicate singing to a singer, or can instruct | indicate notes etc. at the time of a singing. Singers can sing with the support of a karaoke teacher.

  According to this invention, the karaoke apparatus can emit only the singer a guide sound that gives the directivity and supports the singing. Thereby, the singer can hear the guide sound which supports singing, without being noticed by other customers. Moreover, the singer can sing well to some extent by singing according to the guide sound.

  A karaoke apparatus 1 according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram illustrating the inside of a store where a karaoke apparatus is installed.

  As shown in FIG. 1, a karaoke apparatus 1 (1 </ b> A to 1 </ b> D) is installed in the store 5. The karaoke apparatus 1 includes a microphone 2a, a speaker array 3, and a monitor 4. Furthermore, tables 7 (7a to 7d) are arranged in the store 5, and customers are seated on the tables 7a to 7d, respectively. Moreover, the singer 6 who is a customer of the table 7a sings using the karaoke apparatus 1.

  In the present invention, the karaoke apparatus 1 allows only the singer 6 to hear a guide sound (guide vocal, guide melody, phrase, metronome, etc.). Thereby, since the singer 6 can obtain the help of a guide sound, he can sing well to some extent.

  Specifically, when the singer 6 sings, the karaoke apparatus 1 generates a directional beam 6a composed of a guide sound, a singing voice, and an accompaniment sound, emits the sound toward the singer 6, and the singing voice and Directional beams 70a to 70d composed of accompaniment sounds are generated and emitted toward the tables 7a to 7d. At this time, the singing position of the singer 6 may be near the monitor 4 or may be moved to an arbitrary position. In this case, the singing position may be detected by a known method.

[First Embodiment]
The function of the karaoke apparatus 1A according to the first embodiment will be described with reference to FIG. FIG. 2 is a functional block diagram of the karaoke apparatus. The karaoke apparatus 1A includes an operation unit 10, a control unit 11, a storage unit 12, a karaoke performance unit 13, an A / D conversion unit 14 (14-1 to 14-3), an audio signal processing unit 15, and a D / A conversion unit 16. (16-1 to 16-n) and AMP17 (17-1 to 17-n). For simplification of description, only the sound emitted from the speaker array 3 is described except for the description of the video displayed on the monitor 4. Note that the singing position (microphone position) of the singer 6 is calculated by using a trigonometric method, for example, by emitting measurement sounds from two speakers and obtaining time until these measurement sounds are collected by the microphone. can do. It demonstrates below that a singing position of the singer 6 is detected by such a well-known method. Moreover, when the singer 6 sings without moving in front of the monitor 4, the directional beam 6a including the guide sound may be fixed.

  The operation unit 10 outputs the operation input content to the control unit 11 in response to an operation input from the singer 6 or the like. Specifically, the operation unit 10 is input with the song number of the selected karaoke song.

  When the control unit 11 receives an input through the operation unit 10, the control unit 11 controls the storage unit 12 and the karaoke performance unit 13. Specifically, when the order of playing the karaoke songs input from the operation unit 10 is reached, the control unit 11 stores the accompaniment sound data of the selected karaoke song and the guide sound data corresponding to the karaoke song. 12 is read and output to the karaoke performance unit 13.

  Further, the control unit 11 controls the audio signal processing unit 15. Specifically, the control unit 11 periodically detects the position of the microphone 2a (the position of the singer 6) by a known method, and outputs the position information of the microphone 2a to the audio signal processing unit 15. In addition, the control unit 11 instructs the audio signal processing unit 15 to guide sound to be emitted toward the singer 6. At this time, the control unit 11 instructs to emit only the guide sound designated by the operation input of the operation unit 10 such as the singer 6.

  For example, when a guide vocal or a guide melody is selected as the guide sound, the singing melody of the karaoke song can be notified to the singer 6. Further, when a phrase is selected as a guide sound, a shout such as “Ichi, Ni, San, Hi” enters when singing, and the singer 6 can be informed of the singing of the karaoke song. Thereby, the singer 6 can sing at an appropriate timing without singing early or delayed. Further, in the a cappella part, when the metronome is selected as the guide sound, the singer 6 can be notified of the tempo of the karaoke song. Thereby, the singer 6 can take the rhythm of karaoke music. For this reason, the singer 6 can sing to some extent well only by singing according to the guide sound.

  The storage unit 12 stores accompaniment sound data of a plurality of karaoke songs and guide sound data corresponding to each karaoke song. The guide sound is composed of a guide vocal, a guide melody, a phrase, a metronome, and the like. In addition, the kind of guide sound hold | maintained for every karaoke music may differ, for example, a guide sound may be comprised only from guide vocal.

  The karaoke performance unit 13 includes a sound source 131 and a guide sound reproduction unit 132, and plays the accompaniment sound of the karaoke song and reproduces the guide sound. The sound source 131 generates a musical tone signal (audio signal) based on the accompaniment sound data input from the control unit 11, and performs beam control on the audio signal of the accompaniment sound via the A / D conversion unit 14-2. To the unit 152. The guide sound reproducing unit 132 reads and reproduces the guide sound data input from the control unit 11, and outputs the audio signal of the guide sound to the beam control unit 153 via the A / D conversion unit 14-3. The A / D converter 14-2 converts the audio signal of the accompaniment sound from an analog format to a digital format. The A / D converter 14-3 converts the audio signal of the guide sound from an analog format to a digital format.

  The A / D conversion unit 14-1 converts the collected sound (singing voice of the singer 6 and accompaniment sound and guide sound emitted from the speaker array 3) collected by the microphone 2a from an analog format to a digital format. Then, a sound pickup signal is generated. The A / D conversion unit 14-1 outputs the generated sound collection signal to the beam control unit 151.

  The audio signal processing unit 15 includes beam control units 151 to 153 and a mixer 154. When the sound collection signal, the audio signal of the accompaniment sound of the karaoke song, and the audio signal of the guide sound are input, the audio signal processing unit 15 performs delay processing, mixing, etc. on each of them, and configures the speaker array 3. The sound output sound signals of the speakers SP1 to SPn are generated.

  Specifically, when the sound collection signal is input from the A / D conversion unit 14-1, the beam control unit 151 receives the directional beams 6a and 70a for the singer 6 and the tables 7a to 7d illustrated in FIG. ˜70d is formed, delay control is performed on the collected sound signal, and the result is output to the mixer 154. At this time, the singing position information of the singer 6 is input from the control unit 11. Moreover, when the audio signal of the accompaniment sound is input from the A / D conversion unit 14-2, the beam control unit 152 forms the directional beams 6a and 70a to 70d for the singer 6 and the tables 7a to 7d. Then, delay control or the like is performed on the audio signal of the accompaniment sound and output to the mixer 154. Further, when the audio signal of the guide sound is input from the A / D conversion unit 14-3, the beam control unit 153 emits the guide sound designated by the control unit 11 to the singer 6 so that the sound is emitted. Delay control or the like is performed on the audio signal of the guide sound, and the result is output to the mixer 154.

  The mixer 154 mixes these signals with an appropriate balance with respect to various signals input from the beam control units 151 to 153 to generate a sound emission sound signal. The mixer 154 outputs the emitted sound signal to the speakers SP1 to SPn via the D / A conversion unit 16 and the AMP17. At this time, the D / A conversion unit 16 and the AMP 17 perform D / A conversion, amplification, and the like. When the sound emission sound signal is input, the speakers SP1 to SPn form the directional beams 6a and 70a to 70d and emit sound.

  Next, the flow of the guide sound emission process will be described with reference to FIG. FIG. 3 is a flowchart showing a sound emission processing procedure according to the first embodiment. For simplification of description, description of sound emission toward the tables 7a to 7d is omitted, and only sound emission toward the singer 6 will be described.

  As shown in FIG. 3, the control unit 11 inputs the accompaniment sound of the karaoke song and the guide sound corresponding to the karaoke song to the karaoke performance unit 13 (S101) and starts collecting the singing voice with the microphone 2a. (S102). And the control part 11 detects the song position of the singer 6 by a well-known method (S103). This singing position is input to the audio signal processing unit 15.

  The audio signal processing unit 15 checks whether or not a guide sound is input (S104). When there is a guide sound input (S104: Yes), the sound signal processing unit 15 generates a sound emission sound signal composed of the guide sound, the accompaniment sound of the karaoke song, and the collected singing sound (S105), and the guide sound. If there is no input (S104: No), a sound output sound signal composed of the accompaniment sound of the karaoke song and the collected singing sound is generated (S106). At this time, the sound signal processing unit 15 performs a delay process, mixing, and the like so as to emit a directional beam at the singing position detected by the control unit 11 and generates a sound emission sound signal. The audio signal processing unit 15 inputs the emitted sound signal to the speakers SP1 to SPn and emits the directional beam 6a toward the singer 6 (S107). The processes of steps S101 to S107 are repeated until the karaoke song is finished.

  Thereby, 1A of karaoke apparatuses which concern on 1st Embodiment can track the position of the singer 6, and can emit a guide sound only with respect to the singer 6. FIG. For this reason, the singer 6 can sing well to some extent without knowing that the help of the guide sound is obtained by others. In particular, the singer 6 can accurately take the timing of singing a karaoke song and the rhythm of the karaoke song with the help of a guide sound.

[Second Embodiment]
A karaoke apparatus 1B according to the second embodiment will be described with reference to FIGS. FIG. 4 is a functional block diagram of the karaoke apparatus. FIG. 5 is a flowchart showing a sound emission processing procedure (guide sound based on a scoring result during singing) according to the second embodiment. FIG. 6 is a flowchart showing a sound emission processing procedure (guide sound based on singing history) according to the second embodiment.

  The karaoke apparatus 1B of the second embodiment is different from the first embodiment in that the control unit 11 includes a scoring processing unit 111 and the storage unit 12 includes a history DB 121. Moreover, the karaoke apparatus 1B scores a song sequentially during the singer's 6 singing, generates a guide sound at any time based on the scoring result, accumulates the scoring result in the history DB 121, and accumulates in the history DB 121. Based on the scoring results, a guide sound is generated.

  As shown in FIG. 4, the scoring processing unit 111 is provided in the control unit 11 and scores based on the singing voice of the singer 6 and a guide melody. Specifically, the singing voice of the singer 6 is collected by the microphone 2a and input to the voice signal processing unit 15 through the A / D conversion unit 14-1. At this time, the A / D conversion unit 14-1 converts the singing voice from an analog format to a digital format, and generates a sound collection signal. The collected sound signal is input to the scoring processing unit 111 together with the guide melody input from the karaoke performance unit 13 by the audio signal processing unit 15. The scoring processing unit 111 compares the volume / pitch (timing) / timing specified by the guide melody with the volume / pitch / timing of the singing voice, and registers the degree of coincidence in the history DB 121 of the storage unit 12 as a scoring result. To do. Specifically, for example, the scoring result is composed of a location where the singing was not successful and the reason why the singing was not successful. Etc.

  The history DB 121 is provided in the storage unit 12 and stores a scoring result when a scoring result of a karaoke song is input from the scoring processing unit 111. For example, the storage unit 12 stores the scoring results of each singer 6 for half a year. Moreover, the singer 6 can be identified by inputting an ID unique to the singer 6 through the operation unit 10.

  The control unit 11 will be described below in terms of functions according to “when a guide sound is generated based on a scoring result during singing” and “when a guide sound is generated with reference to a history”. In addition, the karaoke apparatus 1B may perform either one of “when a guide sound is generated based on a scoring result during singing” and “when a guide sound is generated with reference to a history”. Both processes may be performed at once.

"When a guide sound is generated based on the scoring results during singing"
When the score processing unit 111 causes the singer 6 to sing a song, the control unit 11 sequentially scores the singing to generate a low-scoring part (a part that could not be sung well). A message is generated and output to the audio signal processing unit 15. For example, when the rhythm of the singer 6 breaks down, a message such as “settlement” is generated to restore the rhythm. If the lyrics are wrong, a message such as “Look carefully at the lyrics” is generated and output to the audio signal processing unit 15. In addition, if a low score occurs while singing karaoke song No. 1, when singing song No. 2, an appropriate message (eg, “Large inflection”, “Use fist”, “Slowly” And the like are output to the audio signal processing unit 15. The audio signal processing unit 15 performs delay processing, mixing, and the like on the message, and generates sound emission audio signals corresponding to the speakers SP1 to SPn. This sound emission sound signal corresponds to the directional beam 6 a that emits sound toward the singer 6.

“When a guide sound is generated by referring to the history”
When the karaoke song is selected, the control unit 11 checks whether or not the scoring result of the selected karaoke song is stored in the history DB 121. When a scoring result is stored, a message is generated and output to the audio signal processing unit 15 when a low scoring point is approached based on the scoring result. For example, at a place where the pitch is often removed, a message such as “careful about the pitch” is generated and output to the audio signal processing unit 15. Further, at a place where it is easy to remove the rhythm, a message such as “Beware of the rhythm” is generated and output to the audio signal processing unit 15. The audio signal processing unit 15 performs delay processing, mixing, and the like on the message, and generates sound emission audio signals corresponding to the speakers SP1 to SPn. This sound emission sound signal corresponds to the directional beam 6 a that emits sound toward the singer 6. At this time, as the scoring result, a message may be generated based on the previous scoring result, or a message may be generated based on the past scoring results.

  As messages output from the control unit 11 to the audio signal processing unit 15, for example, the following messages are generated. When the volume is low, the message “loud” or “loud” is generated to increase the volume. When the volume is high, the message “loud” or “loud” is displayed to decrease the volume. Is generated. When the pitch (pitch) is high, a message “Low” is generated to indicate that the pitch is low, and when the pitch (pitch) is low, the message “High” is selected to indicate that the pitch is high. Generate. Further, when the timing is early, messages “slow”, “more slowly”, etc. to be delayed are generated, and when the timing is late, messages “early”, “much earlier”, etc., are generated.

  Next, the flow of guide sound emission processing will be described with reference to FIGS. FIG. 5 shows a flow of processing when a guide sound is generated based on a scoring result during singing, and steps S203 to S205 are added between step S102 and step S103 in FIG. . FIG. 6 shows the flow of processing when a guide sound is generated with reference to the history, and the processing in steps S204 and S205 in FIG. 5 is replaced with the processing in steps S224 to S226. For simplification of description, description of sound emission toward the tables 7a to 7d is omitted, and only sound emission toward the singer 6 will be described. The description will be divided into “when a guide sound is generated based on a scoring result during singing” and “when a guide sound is generated with reference to a history”. Furthermore, the description regarding the sound emission process of the guide sound corresponding to a karaoke song is abbreviate | omitted. In addition, description of processing overlapping with the operation of FIG. 3 is omitted.

"When a guide sound is generated based on the scoring results during singing"
As shown in FIG. 5, following the processing of steps S201 and S202, the scoring processing unit 111 scores the collected singing voice in step S203. At this time, the scoring processing unit 111 stores the scoring result of the singing voice in the history DB 121 according to an instruction from the control unit 11.

  The control unit 11 checks whether the scoring result of the scoring processing unit 111 is a low score (S204). If the score is low (S204: Yes), the process proceeds to step S205. If the score is not low (S204: No), the process proceeds to step S206, and the subsequent processing is performed.

  In step S205, the control unit 11 generates a guide sound, outputs it to the beam control unit 153, proceeds to step S206, and performs the subsequent processing. At this time, the guide sound is generated based on the scoring result.

“When a guide sound is generated by referring to the history”
As shown in FIG. 6, following the processing of steps S221 to S223, the control unit 11 checks whether a singing history exists in the history DB 121 in step S224. If the singing history exists (S224: Yes), the process of step S225 is performed. When the singing history does not exist (S224: No), the process proceeds to step S227.

  In step S225, the karaoke apparatus 1B refers to the history DB 121 and checks whether or not it corresponds to a low score point. When it corresponds to the low score location (S225: Yes), the process proceeds to step S226. When it does not correspond to the low score part (S225: No), it progresses to step S227.

  In step S226, the control unit 11 generates a guide sound, outputs it to the beam control unit 153, and proceeds to step S227. At this time, the guide sound is generated based on the singing history stored in the history DB 121 of the storage unit 12.

  Thereby, karaoke apparatus 1B can provide an appropriate message as a guide sound according to the present singing situation of singer 6. Moreover, the karaoke apparatus 1B can provide an appropriate message as a guide sound when it becomes a place where it was not able to sing well last time or a place where there are many cases where the singing fails. For this reason, the singer 6 can sing better than usual when singing according to the guide sound.

  In addition, although the scoring process part 111 compared the singing voice and the volume of a guide melody, pitch (pitch), timing, and the singing voice, it was not restricted to this, What is necessary is just to use a well-known scoring method.

  Moreover, although the karaoke apparatus 1B of 2nd Embodiment is provided with the guide sound reproduction | regeneration part 132 in the karaoke performance part 13, the guide sound reproduction | regeneration part 132 does not need to be provided. In this case, the scoring processing unit 111 may score based on the singing voice and the karaoke song.

[Third Embodiment]
A karaoke apparatus 1C according to a third embodiment will be described with reference to FIGS. FIG. 7 is a functional block diagram of the karaoke apparatus. FIG. 8 is a flowchart showing a sound emission processing procedure according to the third embodiment. The karaoke apparatus 1C of the third embodiment is different from the first embodiment in that it includes a microphone 2b connected to the A / D conversion unit 14-3. The karaoke apparatus 1C emits the collected sound from the microphone 2b toward the singer 6 as a guide sound.

  As shown in FIG. 7, when the guide voice is input from the microphone 2b via the A / D converter 14-3, the beam control unit 153 releases the guide voice from the microphone 2b to the singer 6. Delay control etc. are performed so that it may sound. At this time, the A / D conversion unit 14-3 converts the guide sound from an analog format to a digital format to generate a guide sound signal. Further, the beam control unit 153 emits the guide sound input from the guide sound reproducing unit 132 toward the singer 6 together with the guide sound of the microphone 2b.

  Next, the flow of the guide sound emission process will be described with reference to FIG. FIG. 8 is obtained by replacing the processing in steps S103 to S106 in FIG. 3 with the processing in steps S303 to S307. For simplification of description, description of sound emission toward the tables 7a to 7d is omitted, and only sound emission toward the singer 6 will be described. Further, for simplification of description, description regarding the sound emission processing of the guide sound corresponding to the karaoke song is omitted. Also, the description of the same processing as that in FIG. 3 is omitted.

  Subsequent to the processing of steps S301 and S302, the microphone 2b collects the guide voice and outputs it to the beam control unit 153 of the voice signal processing unit 15 in step S303.

  The control unit 11 detects the singing position of the singer 6 by a known method (S304). This singing position is input to the audio signal processing unit 15.

  The voice signal processing unit 15 checks whether or not a guide voice is input (S305). When there is an input of the guide voice (S305: Yes), the voice signal processing unit 15 generates a sound emission voice signal composed of the guide voice, the accompaniment sound of the karaoke song, and the collected singing voice (S307). When there is no voice input (S305: No), a sound emission voice signal composed of the accompaniment sound of the karaoke song and the collected singing voice is generated (S306). At this time, delay processing, mixing, or the like is performed so that a directional beam is emitted at the singing position detected by the control unit 11 to generate a sound emission sound signal. Then, the process of step S308 is performed.

  Thereby, 1 C of karaoke apparatuses can utilize the sound-collected sound of the microphone 2b as guide sound. For example, when a singer 6 sings using a microphone 2a in a karaoke class or a karaoke tournament, the teacher in the karaoke class uses the microphone 2b to give instructions to the singer 6 to start singing and caution when singing. You can instruct matters. For this reason, the singer 6 can sing karaoke well to some extent.

  Moreover, 1 C of karaoke apparatuses of 3rd Embodiment are provided with the guide sound reproduction | regeneration part 132 in the karaoke performance part 13, However, Not only this but the guide sound reproduction | regeneration part 132 does not need to be provided. In this case, the guide sound emitted by the singer 6 is only the guide sound collected from the microphone 2b.

  As described above, in the first to third embodiments, the case where the singer 6 sings alone has been described. However, when two singers perform duets, like the karaoke apparatus 1D shown in FIG. 9, the microphones 2a and 2a-1 and the A / D conversion units 14- corresponding to the respective microphones 2a and 2a-1 1 and 14-4 and beam control units 151 and 151-1 may be provided. The karaoke apparatus 1D detects the singing positions of both singers by a known method. Moreover, karaoke apparatus 1D produces | generates the directional beam containing the guide sound corresponding to each of a singer for every singer in the beam control part 153, and emits a guide sound to each singing position. At this time, the karaoke apparatus 1 </ b> D may emit the guide sound to both singers at the beam control unit 153, or may emit the guide sound only to one singer. Thereby, karaoke apparatus 1D can track each singer and can emit an appropriate guide sound to at least one of the singers. For this reason, the singer can duet with other singers while listening to the guide sound.

  The karaoke apparatus 1D is a karaoke apparatus 1A for a duet, but the karaoke apparatuses 1B and 1C can also be used for a duet like the karaoke apparatus 1D. Moreover, in 3rd Embodiment, 1C of karaoke apparatuses switch the sound emission destination of the guide sound of the microphone 2b by operating a switch etc. For example, the guide voice is emitted to both singers, or the guide voice is emitted only to one designated singer. Moreover, the microphone corresponding to each singer is provided in 1C of karaoke apparatuses, and the sound-collected sound picked up by each microphone is emitted as a guide sound to the corresponding singer.

  In addition, karaoke apparatus 1A-1C which concerns on 1st-3rd embodiment is a speaker which directs directional beam 70a-70d which consists of a singer's 6 singing voice and accompaniment sound toward each table 7a-7d in the store 5. Sound was emitted from Array 3. However, the present invention is not limited to this, and the karaoke apparatuses 1 </ b> A to 1 </ b> C may emit the singing voice of the singer 6 and the accompaniment sound of the karaoke music omnidirectionally from the speaker array 3. Moreover, when it is desired to listen only to the group of the singer 6, the karaoke apparatuses 1 </ b> A to 1 </ b> C generate a directional beam 70 a composed of the singing voice of the singer 6 and the accompaniment sound of the karaoke song. Sound is emitted from the speaker array 3 toward the group 6 to generate directional beams 70b to 70d composed of guide vocals and accompaniment sounds of karaoke songs, and emitted from the speaker array 3 toward the other tables 7b to 7d. You may sound. In the above description, the microphone position is detected by a known method. However, not limited to this, when the singer 6 does not move from the front of the monitor 4, the direction of the guide sound beam may be fixed.

  As described above, the karaoke apparatus 1 according to the present invention emits the directional beam 6 a including the guide sound to the singer 6. Thereby, the karaoke apparatus 1 can emit the guide sound which supports singing only to the singer 6 without noticing other customers. For this reason, the singer 6 can sing well to some extent without being noticed by other customers by receiving the support of the guide sound.

It is a figure explaining the inside of the store where the karaoke apparatus was installed. 1 is a functional block diagram of a karaoke apparatus according to a first embodiment. It is a flowchart which shows the sound emission process procedure which concerns on 1st Embodiment. It is a functional block diagram of the karaoke apparatus which concerns on 2nd Embodiment. It is a flowchart which shows the sound emission process procedure (guide sound based on the scoring result during a song) which concerns on 2nd Embodiment. It is a flowchart which shows the sound emission process procedure (guide sound based on song history) which concerns on 2nd Embodiment. It is a functional block diagram of the karaoke apparatus which concerns on 3rd Embodiment. It is a flowchart which shows the sound emission process sequence which concerns on 3rd Embodiment. It is a functional block diagram of the karaoke apparatus for a duet.

Explanation of symbols

1-karaoke device, 2a, 2b, 2a-1-microphone, 3-speaker array, 4-monitor, 5-in-store, 6-singer, 6a, 70a-70d-directional beam, 7 (7a-7d)- Table, 10-operation unit, 11-control unit, 12-storage unit, 13-karaoke performance unit, 14 (14-1 to 14-4), 15-audio signal processing unit, 16 (16-1 to 16-n) ) -D / A conversion unit, 17 (17-1 to 17-n) -AMP, 111-scoring processing unit, 121-history DB, 131-sound source, 132-guide sound reproduction unit, 151, 151-1, 152 153-beam control unit, 154-mixer, SP1-SPn-speaker

Claims (4)

A first microphone for collecting singing voice;
First sound collecting means for generating a sound signal from the singing sound collected by the first microphone;
Sound emission that emits a directional beam that emits a guide sound for supporting the singing of the singer toward the singing position of the singer along with the sound signal generated by the first sound collecting means. Means,
A karaoke apparatus comprising: a speaker array that emits a directional beam generated by the sound emitting means.   2. The karaoke apparatus according to claim 1, wherein the sound emitting unit generates the guide sound based on a scoring result obtained by sequentially scoring a singer's singing voice collected by the first sound collecting unit. A history storage means for storing a history of scoring results obtained by sequentially scoring the singing voice of the singer collected by the first sound collecting means;
The karaoke apparatus according to claim 1, wherein the sound emitting unit generates the guide sound based on a history of scoring results stored in the history storage unit. A second microphone for picking up sound;
The karaoke apparatus according to any one of claims 1 to 3, further comprising: a second sound collecting unit that generates the guide sound from the sound collected by the second microphone.

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