JPH06102876A - Karaoke system - Google Patents

Abstract

PURPOSE:To provide the KARAOKE (orchestral accompaniment) system which is quickened in response to a request and improved in the quality of a speech and an image to be offered. CONSTITUTION:A center device 10 and plural terminal devices 50 are connected together by a digital communication line 100 and each of the terminal device 50 offers at least a musical performance of music. The center device 10 of this orchestral accompaniment system is equipped with a musical performance information storage means 12 which stores MIDI performance information including performance data of the MIDI standards and a performance information output means which outputs the MIDI performance information. Each of the terminal devices 50 is equipped with a performance information input means which outputs performance request information to the center device 10 and inputs the MIDI performance information, a sound source means 64 which generates a signal of played music from the MIDI performance information, and stored information wherein the MIDI performance information can be recorded and reproduced.

Description

Detailed Description of the Invention

[0001]

The present invention relates to an ISDN (Integrated Services Digital Net) for a center device and a plurality of terminal devices.
(work) etc., connected by a digital communication line to transmit information bidirectionally and provide karaoke information such as performance songs from the center device to each terminal device, in particular,
The present invention relates to a karaoke system which provides a performance by digital performance information based on the MIDI (Musical Instrument Digital Interface) standard or the like.

[0002]

2. Description of the Related Art Conventionally, as a karaoke system utilizing an ISDN communication line, a karaoke system having a structure shown in FIG. 3 has been known. The ISDN communication line 100 uses voice, data,
A telecommunications network that provides digital communication paths to comprehensively support various communication services such as images,
As shown in the figure, the center unit 110 is connected via DSUs (Digital Service Units) 101 and 102.
Alternatively, the terminal device 150 is connected.

As shown in FIG. 3, a conventional ISDN is used.
In the karaoke system using the communication line 100, the terminal device 150 is provided with a performance reproduction control unit 151, a television 152 for displaying an image, an amplifier 153 for reproducing sound (performance), a speaker 154 and a microphone 155, and provides a karaoke service. Is being done. Center device 110
Includes a processing control unit (CPU) 111 for controlling transmission to the ISDN communication line 100, a storage unit 112, and a large-capacity magnetic disk 113 as an external storage device. And the performance data is transmitted to the terminal device 150 via the ISDN communication line 100 upon request. The performance data stored in the storage unit 112 of the center device 110 is created in advance by the input device 120. In the input device 120, voice (performance) data 121 for karaoke, video data 122, and lyrics data 123.
The audio CODEC (Coder and Decoder) 124 and the video CODE
Compressed by C 125 and transferred to the magnetic disk 113,
Compressed data is managed and stored for each performance song.

In the performance control unit 151 of the terminal device 150,
The request song input processing and the performance data transmission request processing to the center device 110 are performed, and the transmitted performance data is restored to a voice (performance) signal by the voice CODEC 156 and output to the amplifier 153, and the video CODEC 157 is output. Restores the video signal and outputs it to the TV 152.
The lyrics data is displayed on the television 152 according to the lyrics data. As a result, the karaoke service was provided.

[0005]

However, in the above-mentioned conventional karaoke system using the ISDN communication line, since the audio (performance) signal and the video signal are processed and the digitized data is used, one song The transmission amount was too large. Therefore, a large-capacity storage device is required to store the performance data transmitted from the center device in the terminal device. Also, since it is necessary to immediately transmit performance data from the center device in response to a request, in order to reduce the data transmission amount per song and shorten the transmission time, the audio is monaural or the video is made a still image. , The quality of audio (playing) and video had to be reduced. Further, even if the data amount is reduced by compression or the like, the data amount is about several megabytes per song, so that the transmission time becomes long and the running cost due to the usage time of the ISDN communication line increases. Was there.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a karaoke system capable of enhancing the immediacy of a request and improving the quality of audio and video provided.

[0007]

To achieve the above object, the present invention provides a karaoke system in which a center device and a plurality of terminal devices are connected by a digital communication line, and at least music performance is provided in each terminal device. The device inputs performance information storage means for storing MIDI performance information including performance data of the MIDI standard for a plurality of performance songs, performance request information, and M indicated by the performance request information.
Performance information output means for outputting IDI performance information,
Each terminal device outputs the performance request information to the center device and inputs the MIDI performance information, performance information input means, sound source means for generating a signal of a performance music from the MIDI performance information, and the performance information output means. And a rewritable storage means for recording the data.

[0008]

In the karaoke system of the present invention, the center device stores the MIDI performance information including the performance data of the MIDI standard for reproducing the performance music, and the MIDI performance information is transmitted to the terminal device to provide the karaoke performance. To do. MI
The performance data of the DI standard is data representing a musical score digitally, and is control information for an electronic musical instrument, a sound source, or the like. M
The performance data of the IDI standard has information such as "pitch", "volume", "timbre" as numerical data. That M
A signal of a music piece is generated in the sound source by the performance data of the IDI standard, and stereo music of the same level as the actual performance is output. Moreover, the amount of data per piece of MIDI standard performance data is much smaller than the amount of data obtained by digitizing the actual performance by PCM or the like.

According to the present invention, when a request for a musical composition is made at the terminal device and the performance request information is output from the performance information input means to the center device through the digital communication line, the performance information output means of the center device performs the performance. Upon request, the corresponding MIDI performance information is obtained from the performance information storage means and output to the terminal device via the digital communication line. The MIDI performance information is inputted by the performance information input means of the terminal device, and is inputted by the sound source means.
The I performance information generates a signal of a music piece to provide a karaoke performance. At the same time, the MIDI performance information is stored in the storage means. Thus, the terminal device can first check whether or not the requested song is stored in the storage means, and if the requested song is not stored, request the center device for transmission. As described above, since the karaoke performance is provided only by transmitting the MIDI performance information from the center device to the terminal device through the digital communication line, the transmission time is shortened, and the high-quality performance music output is obtained in the sound source means. To be

Further, the MIDI performance information of each performance music stored in the performance information storage means of the center device includes video instruction information indicating a video suitable for the performance music, and the terminal device includes the video information storage means and the video information. A reproducing means may be provided. In this case, the video reproducing means provided in the terminal device reproduces the video by obtaining the video information indicated by the video instruction information from the video storing means when the karaoke performance is provided. Therefore, since an image suitable for a musical piece is reproduced from the stored image in the terminal device, a high quality image is provided. Further, the MIDI performance information may include lyrics information, and the lyrics of the performance song may be displayed in the image displayed by the image reproducing means based on the lyrics information.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a block diagram of a karaoke system using an ISDN communication line which is an embodiment of the present invention. The karaoke system shown in FIG. 3 has the same I-type as the conventional system shown in FIG.
SDN communication line 100 and DSU (line terminator) 10
The center device 10 or the terminal device 50 is connected via 1, 102.

The center device 10 of this embodiment comprises a central processing unit (CPU) 11 and a storage unit 12. The central processing unit 11 is connected to the DSU 101 and receives a performance request from the terminal device 50 as performance information output means. The control for inputting and outputting the MIDI performance information to the terminal device 50 is performed. Storage unit 1
MIDI performance information including MIDI song data, lyrics data, and LD screen instruction data which is video instruction information is stored in 2 as performance information storage means. The MIDI performance information is formed as MIDI karaoke data as shown in FIG. MIDI karaoke data is roughly divided into sequence data consisting of performance data and quick reference table data consisting of request search data. The sequence data also includes note data, lyrics data and P
It is formed by CM data. In the note data,
MIDI including setting data such as tone color, rhythm and tempo
Music data for controlling the sound source is formed for each music. In the lyrics data, character data for a telop to be displayed on the monitor TV and timing map data indicating the display timing of lyrics, the speed of color change, etc. are formed for each song. In the PCM data, data such as sound effects and back chorus that cannot be produced by a MIDI sound source is formed for each song. The quick reference table data is formed by data such as a song name, a singer name, a composer / lyricist name, a genre of the song, and the like, and the song is searched by any one of the data.
The genre data of a song is LD screen instruction data, which is the data indicating the type of LD (laser vision disc) image screen suitable for the song. The MIDI karaoke data has a data amount of about 100 kbytes, although the data amount of one song differs depending on the song. Details of a MIDI karaoke file composed of these MIDI karaoke data and details of a karaoke performance device that performs a performance from the MIDI karaoke data are presented in another application (Japanese Patent Application No. 2-273733).

On the other hand, the terminal device 50 of the present embodiment comprises a mixing amplifier 51, a speaker 52, a microphone 53, an LD player 54 and a monitor TV 55, and a controller 56 for controlling them. LD player 54 with laser vision disc and monitor TV
55 forms a video information storage means and a video reproduction means. The controller 56 forms a performance information input means, a video reproduction means, and a sound source means, and its configuration is a central processing unit (CPU) 61 for performing various controls, and an ISDN for controlling communication via the ISDN communication line 100 connected to the DSU 102. Interface (I / F) 62, operation unit 63 for performing operation input and display, and MID as sound source means
I sound source 64, its MIDI sound source 64, and central processing unit 61
A MIDI interface 65 for connecting to a superimposer 66, a central processing unit 61 and an LD player 54.
A storage unit 6 capable of recording and reproducing MIDI karaoke data including an LD interface 67 for connecting to and from, and an OMDD (Optical Memory Disk Drive) capable of optically reversible recording.
8 and a key interface 69 for controlling the keys of the mixing amplifier 51.

In the controller 56, the MIDI
MID to the sound source 64 via the MIDI interface 65
When the I song data is transferred, a music signal corresponding to the data is output from the MIDI sound source 64 to the mixing amplifier 51, and music is output from the speaker 52. The LD interface 67 and the LD player 54 are RS232C.
The video reproduction of the LD player 54 is controlled by the connection. The video signal reproduced by the LD player 54 is output to the monitor TV 55 via the superimposer 66 to display an image. The super imposer 66 controls to display the display information such as characters input from the central processing unit 61 in the video. The storage unit 68 previously stores the MIDI performance information for a plurality of songs. Further, the image reproduced by the LD player 54 is prepared according to the genre of the music. For example,
Songs are categorized into engravings, pops, and rocks on one laser vision disc, and 12 types of images are recorded for each, 4 types of spring, summer, autumn, and winter.
Provide based on karaoke information. In this case, LD
Since it is only necessary to prepare one device, the device configuration can be simplified, and the terminal device can be configured using the LD player even at home.

Next, the control of the karaoke performance in the terminal device 50 having the above configuration will be described. The person who wants to sing displays the song name, singer name, etc. on the monitor TV 55 from the quick reference data, specifies the song name to sing, and requests.

When a karaoke performance request is received from the operation unit 63, the central processing unit 61 of the controller 56 first determines whether or not the MIDI performance information of the requested song is stored in the storage unit 68 using the song name as an index. If it is searched, checked, and stored, the performance control is started based on the MIDI performance information, and the data in the storage unit 68 is output to the sound source or the like. Also, the MI of the requested song is stored in the storage unit 68.
When the DI performance information is not stored, the center apparatus 10 is accessed via the ISDN interface 62 and the performance request information is transmitted. And the center device 1
When MIDI performance information is transmitted from 0, the information is stored in the storage section 68 and performance control is started. At this time, the MIDI performance information may be temporarily stored in the RAM of the central processing unit 61 and then stored in the storage unit 68. In the performance control, first, the LD player 54 is controlled to reproduce the video indicated by the LD screen instruction data, and the video reproduction is started. At the same time, MIDI song data is transferred to a MIDI sound source to control the output of playing music. Further, in response to the output control of the performance music, the super imposer 66 is controlled by the timing based on the timing map data included in the lyrics data.
The title data and the lyrics data are transferred to and the telop is displayed at a predetermined position of the video signal, and the color change of the telop indicating the singing timing is controlled.

As described above, in this embodiment, the center device 1
The MIDI performance information including the MIDI standard tone generator control data is stored in 0 as performance data, and the MIDI performance information is transmitted at the request of the terminal device 50. Then, in the terminal device 50, the MIDI performance information
The sound source is controlled to generate a performance signal to output music, and a video suitable for a performance song is displayed together with lyrics from a video prepared in advance to provide a karaoke performance. Therefore, in the karaoke system of the present embodiment, since the data amount of one piece of MIDI performance information is about 100 kbytes, the time required for transmission through the ISDN communication line is short and the request can be immediately dealt with. At the same time, the cost of occupying the communication line is reduced. Further, even in the video provided at the same time as the performance, the optimum video is instructed and reproduced from among those prepared in the terminal device, so that the high quality performance and video are provided.

Although the karaoke system using the ISDN communication line as the digital communication line is shown in the above embodiment, the present invention is not limited to this, and for example, a digital PBX (Private Branch Exchange) is used. It can also be configured to be used only on the premises such as buildings.

[0019]

As described above, according to the karaoke system of the present invention, the MID in response to the request from the terminal device.
Since the karaoke performance is provided only by transmitting the performance data of the I standard, the time required for the transmission is shortened and the immediacy for the request is improved. further,
Since the performance signal is generated by the sound source means controlled by the performance data of the MIDI standard, high quality music is output.
In addition, since an image suitable for a musical piece is instructed and reproduced from the images prepared in the terminal device, similarly high quality image display is provided.

In particular, the storage unit in the terminal device is preferentially searched for the desired song by sub-searching the storage unit in the center device for data transmission, so that the karaoke performance is extremely efficient in terms of system. Enjoy it.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a karaoke system using an ISDN communication line according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of MIDI karaoke data.

FIG. 3 is a block diagram of a karaoke system using a conventional ISDN communication line.

[Explanation of symbols]

 10 ... Center device 11 ... Central processing unit (CPU) 12 ... Storage unit 50 ... Terminal device 51 ... Mixing amplifier 52 ... Speaker 53 ... Microphone 54 ... LD player 55 ... Monitor TV 56 ... Controller 61 ... Central processing unit (CPU) 62 ISDN interface 63 ... Operation unit 64 ... MIDI sound source 65 ... MIDI interface 66 ... Super imposer 67 ... LD interface 68 ... Storage unit 69 ... Key interface 100 ... ISDN communication line 101, 102 ... DSU (line terminating device)

Claims (1)

[Claims] 1. A karaoke system in which a center device and a plurality of terminal devices are connected by a digital communication line and at least music performance is provided in each of the terminal devices, wherein the center device is a MIDI performance including performance data of MIDI standard. The terminal device is provided with performance information storage means for storing information about a plurality of performance songs, and performance information output means for inputting performance request information and outputting MIDI performance information indicated by the performance request information. Performance information input means for outputting request information to the center device and inputting the MIDI performance information, sound source means for generating a signal of a performance music piece from the MIDI performance information, and recording data from the performance information output means. A karaoke system, comprising: a rewritable storage means.