JP3529246B2 - Karaoke video playback device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a karaoke picture reproducing apparatus for displaying a mood picture on a display when accompaniment music of karaoke music is performed. 2. Description of the Related Art Conventionally, in a karaoke apparatus, a mood image displayed on a display at the time of playing karaoke accompaniment music is created exclusively for each karaoke music piece, such as karaoke package software. Was. This package software is provided by integrally recording a mood image including accompaniment music and lyrics on a recording medium such as a CD. Therefore, it is possible to display a mood image that matches the style of the karaoke song and has a consistent storyline contained in the lyrics. However, since a special mood image is produced for each karaoke song, a huge production time and production cost are required. It is also difficult to quickly provide karaoke software (accompaniment music and mood video with lyrics) for new songs that are constantly released. Furthermore, in order to support a large number of karaoke songs, it is necessary to prepare a large number of karaoke package software, and the recording capacity such as the number of recording media and the space required for the installation location are enormous. In contrast to the above-described method, a long-time video is stored in a video database, and a material video (a part of a long-time video) is appropriately selected and extracted from an arbitrary storage position in the database. There is a method in which a series of mood images is formed by sequentially switching the material images during a performance period and playing back the connected images. With the spread of a communication karaoke system that can quickly respond to the release of a new song and can accommodate a large number of songs with a small storage capacity, karaoke apparatuses adopting this method are becoming mainstream at present. The adoption of the shared video database system, which uses the shared material video for each karaoke song, has made it possible to significantly reduce the mood video production time and production cost, the recording capacity, and the location of the recording media. However, if a large number of material videos are randomly used in each karaoke song, the karaoke song style and mood video will not match at all. Then, patent 2555042
In the technology disclosed in Japanese Patent Publication No. 3 (conventional example), the music style of the music and the mood video are matched while adopting the shared video database system. The details of this technique are as follows. [0004] Each karaoke song is accompanied by index information for designating a material video used during the performance of the song. The index information is information “related to the musical composition”. The information related to the performance music is specifically a genre and is used for classifying a large number of karaoke music into a plurality. The long-time video stored in the video database is processed in units of material video. This material video is divided into appropriate video expressions such as one scene. These material videos are also classified into a plurality of groups according to genres. Therefore, each karaoke song and a predetermined material video group are associated with each other with the genre as an intermediary. [0006] A parameter is attached to the index information. The parameters describe point time data for setting a plurality of video switching points during the performance period of the karaoke song, and video effects at the time of video switching. The video effect is 1 for each song.
Are specified one by one. [0007] When a certain karaoke song is requested, a number of source videos corresponding to the number of video switching points are randomly selected from a source video group corresponding to a genre attached to the song. Further, the order in which the plurality of material videos are reproduced is also set at random. [0008] When a karaoke song is played, a continuous video is continuously reproduced until the next video switching time with the recording start position of the first material video as a reproduction start position. When the time of the first video switching point comes, the video is switched to the next material video according to the specified video effect. In this way, the material video is sequentially switched during the performance period of the music to make the mood video. [0009] Even now, there should be quite a lot of karaoke enthusiasts who feel the great attraction of singing along with the mood video produced exclusively for each karaoke song. However, at present, when there are more than 10,000 karaoke songs, for the above-mentioned reason, there is no choice but to choose a method of using mood videos, which are far fewer in number than karaoke songs, in each song. It would not be possible at present. Certainly, in the technique disclosed in the above-mentioned conventional example, the karaoke music of each karaoke music is matched with the mood video by allocating the material video to each genre. However, scenes that change moment by moment with the performance of the music, and the origination and relocation of the story contained in the lyrics are completely different for each music. And the mood video is a “specific order” where the “video that matches the image” recalled at each time during the performance matches the storyline
It is developed in. Nevertheless, in the conventional example, an enormous number of karaoke songs of 10,000 or more and videos of a long time of several tens of hours or more are classified according to extremely few genres. That is, for one of a huge number of songs belonging to each genre, material videos of only a few scenes selected at random from a large number of material videos belonging to each genre are appropriately allocated and used within the performance time. ing. [0011] Even though each of a large number of material images has completely different contents, all material images classified only based on their superficial relevance are treated equally, and an appropriate one is selected from among them. They are stitched together. That is, a mood video is obtained by editing a plurality of material videos that are completely unrelated in the order in which the contexts before and after are ignored. Therefore, it can be concluded that the technique according to the prior art is completely impossible to follow a mood image to a scene change or a story development during performance. In some cases, the image of the music being played may not match the mood video at all. [0012] Classifying material videos by genre also means that the number of material videos that can be used for each music piece is limited by itself. That is, when a song of a certain genre is selected, all material videos belonging to another genre are wasted. Further, even if a new video is added, the probability that this video will be used is low, and only the data amount is increased. In this case, it cannot be said that the original purpose of effectively using the recorded video by the shared video database is sufficiently achieved. Further, each selected material video is continuously reproduced until the next video switching point with the recording start position as the reproduction start position. Even if the time interval between each video switching point and the recording time of each material video are the same, the playing time differs for each song, so the material video that is played last will inevitably end halfway . Suddenly, the singer will be dissatisfied if the mood video is suddenly interrupted without immersion in the "finish" of the end of the song. In addition, there is another problem that the video effect is uniform for each music piece. The mood video is developed while the material video following the story is switched with the optimal video effect from time to time, thereby creating an effect that makes the story contained in the lyrics of the song more clear and conclude. for example,
Even if the video effect is changed at each video switching point, it must be said that the "video without any context before and after" is cheated by the easy video effect. After all, this conventional example is a technique aimed at how to easily assign a material image to an increase in music such as the addition of a new music. The only effect that can be obtained is to make sure that it is not far from the image. SUMMARY OF THE INVENTION It is an object of the present invention to provide a karaoke video reproducing apparatus capable of displaying a mood video that matches the content of a musical piece that changes during a performance while using a reusable material video. [0017] A karaoke video reproducing apparatus according to the present invention is specified by the following items (1) to (7). (1) A karaoke video reproducing apparatus that includes a video database, a video database access unit, a video reproducing unit, a video effect processing unit, and a control unit, and outputs a mood video during a karaoke performance based on script information created for each karaoke song. is there. (2) The video database stores video data for a long time on many optical disks. (3) The video database access means includes a plurality of optical disk drive devices that can operate in parallel, and reads video data at a specified position of a specified optical disk in a video database. (4) The video reproducing means reproduces the video data of a plurality of systems output from the plurality of optical disk drive devices and outputs a plurality of video signals. (5) The video effect processing means inputs a plurality of systems of video signals, switches the video signals of one system to the video signals of the other system and outputs the video signals while performing the specified video effect processing on the video signals. (6) script information, and point time data specifying multiple time video switching point, and storing position data respectively specify the storage location of each video data to be outputted at the front and rear of the video switching point, a plurality of types Of the
And a video effect data designating each respective movies <br/> image effects to be used for each video switching point from the image effects. (7) The control means causes the video database access means to read out the video data to be used between the video effect switching points while switching the optical disc drive device according to the point time data and the storage position data of the script information, and to switch each video effect. At the point, the video effect processing means is operated according to the video effect data. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS === Configuration and Basic Operation of Karaoke Apparatus === FIG. 1 shows an embodiment of a karaoke apparatus according to the present invention. FIG. The karaoke apparatus 1 has almost the same configuration as the performance terminal in the communication karaoke system, and its basic operation is almost the same. The central control unit 11 including a CPU, a RAM, and a ROM receives karaoke data distributed from the host device 60 through the telephone line 50 via the modem 23 and stores the karaoke data in the hard disk device 24. And
When the music selection information input from the remote control transmitter 12 or the operation panel 13 is received via the operation control unit 15, the corresponding karaoke data is extracted from the hard disk device 24. Accompaniment music generation data such as MIDI data in the karaoke data is sequentially transferred to a synthesizer 16, and the generated accompaniment music is mixed with a singer's voice signal from a microphone 17 by a mixing amplifier 18, and
9 is output. Further, the central control unit 11 processes the lyrics rendering data in the karaoke data, and sequentially develops the lyrics images synchronized with the accompaniment music into the video RAM 20 in the bitmap. On the other hand, the mood video is stored in the video database 30 in an appropriate data format. The video data reproduction unit 40 sequentially retrieves and reproduces material videos of an appropriate time length from the video database 30 as a time at the time of reproduction, and switches the material videos so as to be connected to edit them into a series of mood videos. . The video signal output from the video data reproducing unit 40 is combined with the lyrics image by the video control unit 21 and displayed on the display 22 as a mood video in which the lyrics are superimposed. next,
The mood video reproduction system which is a requirement of the present invention will be described. === Mood Video Reproduction System === Video Database In this embodiment, the mood video is recorded on a CD-ROM as video data digitized in the MPEG1 format. A large number of CD-ROMs are prepared in order to handle a long-time video. In each CD-ROM, video data corresponding to a video of 74 minutes in reproduction time is recorded as in a normal video CD. The video data at the desired storage location can be specified by a sector address assigned to each data sector of the CD-ROM. The desired sector address contains a CD-R
Time code (minute / second / frame <1) corresponding to the elapsed time when the video recorded in the OM is reproduced from the beginning
By designating “second = 75 frames>”, access can be made in a time unit of 1 second or less (a detailed description is omitted because the standard around this is based on a video CD). Therefore, the material video referred to in the present invention is not specified in units of a video expression such as one scene, but an arbitrary sector address and an arbitrary sector address from the video for the recording time recorded on one CD-ROM. , And an arbitrary playback time length with this as a playback start position. As a result, there are virtually countless source images. Hardware Configuration FIG. 2 shows in more detail the configurations of the video database 30 and the video data reproduction unit 40, which are the core of the hardware in the mood video reproduction system. The video database 30 is composed of three systems of CD-ROM changers 31 to 33 operating in parallel, and a large number of CD-ROMs that record video for a long time are stored in the three systems of CD-ROs.
It is distributed to M changers 31 to 33. The central control unit controls an arbitrary system of CD-ROM changers 31 to 33, sets an arbitrary CD-ROM stored therein to the driving device, and sets an arbitrary CD-ROM recorded on the CD-ROM. Read and output material video data. If the CD-ROM changer for reading the material video data is different from the CD-ROM changer for reading the material video data next, the central control unit stores the corresponding CD-ROM in the next CD-ROM changer. Set it in the drive device in advance. By doing so, the time lag until the CD-ROM is set in the drive device is absorbed. On the other hand, the video data reproducing section 40 has two MPEG decoders 41 and 42, and these two MPEG decoders.
It includes a video effect processing unit 43 connected to the output paths of the decoders 41 and 42. Two MPEG decoders 4
Reference numerals 1 and 42 are respectively connected to output paths of three systems of CD-ROM changers 31 to 33. And 3
MPEG-1 format video data output from the CD-ROM changers 31 to 33 of the system is input.
The video data from the two paths is selected and decoded, and the mood video is reproduced. Further, the two MPEG decoders 41 and 42 can also operate in parallel, and alternately handle the processing of the material video data. The video effect processing unit 43 receives two video signals from the MPEG decoders 41 and 42 and performs a switching operation of outputting one video signal. The video signal of the two systems is also subjected to various video effect processing (overlap synthesis, fade-in / fade-out, video switching by wipe, etc.), and the video signal after the video effect processing is output. The central control unit controls these hardware according to script information described later, and connects the reproduced material images as appropriate to edit them into a series of mood images. Next, the script information and the mood video editing process of the central control unit based on the script information will be described. Script information The script information described above is stored in the hard disk device in association with the music number. Therefore, each karaoke music piece and script information are associated in a one-to-one relationship. In addition,
By preparing a karaoke song ID-script ID comparison table or the like, each song may be associated with script information. FIG. 3 shows an outline of the script information. This script information includes the song number,
A video switching point, a video effect, and a material video storage position are described. A plurality of video switching points set during the performance period of one karaoke music piece are specified by point time data. The point time data describes the elapsed time from the performance start time of the music. The video effect specifies the type of video effect when the source video is switched at each video switching point, and the required time indicating how long the effect is to be performed. In the present embodiment, the above-described video switching point time is a time at which the video effect processing is started in consideration of the required time. The material video storage position is specified by the storage location of the disc and the temporal position within the disc. The storage location of the disk is specified by the ID of the CD-ROM changer and the disk number in the changer, and the time position is specified by the minute / second / frame described above. Also, the storage location of the material video is designed so that the same CD-ROM changer is not designated between successive video switching points, and the occurrence of the above-described time lag is also avoided. The storage location of the disc is
By preparing a comparison table or the like in which the disk ID attached to the ROM is associated with the storage location in the video database, the disk ID may be directly specified by the disk ID. By preparing the above-mentioned script information, the material video used between the video switching points is directly and uniquely specified without the media-related information related to the music such as the genre. ing. Moreover, 1
The playback start position can be specified in units of 1/75 second, which is the frame time. Therefore, let alone one scene, even a part of the image in one cut can be freely designated as a material image. The mood video editing processing central controller appropriately edits the material video used between the video switching points in accordance with the script information and edits it into a series of mood videos. FIG. 4 shows a flowchart of the editing process. When a karaoke song is requested,
The script information corresponding to the karaoke song is read from the hard disk device. When the performance of the music starts, the measurement of the elapsed performance time also starts. Then, the time is compared with the time corresponding to the video switching point. Further, an appropriate CD-ROM changer is controlled in accordance with the material image storage position described at the first video switching point (start time of performance), and an appropriate CD-ROM is set in the driving device, and the described time position is set. The data is output starting with. Then, an MPEG decoder of an appropriate system performs decoding processing of the video data in real time, and outputs the video signal. The output video signal is output to the display via the video effect processing unit and the video control unit. (101-103) When the next video switching point time comes, an MPEG decoder of a system different from the system which decoded the material video up to that time is made to perform decoding processing of the next material video data. At this time, the video effect processing unit is controlled to perform video switching control while performing the specified video effect processing (105, 1).
06). Thereafter, the video from the specified time position on the specified CD-ROM is reproduced at the specified point time in the same manner, and sequentially switched (107 → 10).
3). === Other Embodiments === Although the script information is stored on the hard disk as data independent of the karaoke data, it can also be attached to the karaoke data of each karaoke song. Also,
Do not store the script information on the hard disk.
A D-ROM may be prepared. In this case, prior to the performance of the music, the corresponding script information is read from the CD-ROM and temporarily stored in a RAM or the like in the central control unit, whereby the mood video editing process can be performed. When a new song is added or script information is updated, new script information may be distributed from the host device in a timely manner. Instead of multiple CD-ROM changers, multiple CD-Rs
One disk tray for storing OM and multiple CD-
It is composed of a ROM drive device, and by the transport device,
A method of taking out an arbitrary CD-ROM from the disk tray and setting it in a predetermined CD-ROM drive may be adopted. FIG. 5 shows an example. Under the control of the central control unit, the transport device 45 moves the CD-RO from the disc tray 34.
M is taken out, and three systems of CD-ROM drive devices 31b-
33b. Then, the transport device 45
Is a CD-ROM from which data is read next
By setting in advance in the D-ROM drive device, a time lag that occurs at the time of switching the material video is eliminated. The video data is not limited to the MPEG1 format, but may be MPEG2 or other digital data, or an analog video signal such as an optical analog video disk. It is also possible to provide a video database of an appropriate recording medium for storing signals of the respective data formats, and a video reproducing means for processing the video data of the respective formats and reproducing the mood video. . Of course, the karaoke apparatus itself does not need to be a performance terminal for the communication karaoke system, and it goes without saying that any karaoke apparatus of the type that edits mood videos by the shared video database system may be used. According to the script information corresponding to each karaoke tune, the material video extracted from the video recorded in the video database is directly at an arbitrary reproduction start position without passing through information related to the tune such as genre. Playback is performed according to the specified playback time length and the specified order. Therefore, in all the karaoke songs, only a portion that matches the content that changes from time to time during the performance period can be reproduced as a material video with good timing. As a result, it is possible to display a mood video having a content that sufficiently follows the time-series change of the music.
In addition, all recorded videos in the video database can be used without waste. In turn, even a small amount of video data can be edited into various mood videos. Therefore, the capacity of the video data stored in the shared video database can be further reduced as compared with the related art. Of course, the last material video in the performance period can be freely designated according to the performance time of the music or the atmosphere of the performance end. Therefore, the performance of the music does not end with the halfway video. Further, by providing a plurality of systems of video database access means capable of operating in parallel and a plurality of systems of video reproducing means capable of operating in parallel, it is possible to avoid a time lag that occurs when switching the reproduction of the material video. In addition, since video signal processing means for inputting video signals from a plurality of systems of video reproduction means in parallel and performing appropriate video effect processing is provided, the switching of the material video can be performed more smoothly and the music can be reproduced more naturally. The video can be transferred according to the content. Further, by storing a long-time video as compression-encoded digital moving image data on the optical disk, an arbitrary storage position of the moving image data can be accessed in units of 1 second or less based on the time code of the optical disk. Moving image data for an arbitrary reproduction time can be extracted. Therefore, the material video that closely follows the subtle story development can be reproduced at more accurate timing.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a karaoke apparatus according to an embodiment of the present invention. FIG. 2 is a configuration diagram of a main part in the mood video reproduction system in the embodiment. FIG. 3 is a schematic structural diagram of script information processed in the embodiment. FIG. 4 is a flowchart showing a mood video editing process performed by a central control unit in the embodiment. FIG. 5 is a configuration diagram of another embodiment of the mood video reproduction system. [Description of Signs] 1 Karaoke device 11 Central control unit 22 Display 30 Video database 40 Video data playback unit

Claims (1)

(57) [Claims] 1. A karaoke performance based on script information created for each karaoke song, comprising a video database, a video database access unit, a video reproduction unit, a video effect processing unit, and a control unit. A karaoke video playback device that sometimes outputs mood video, wherein the video database stores a long time of video data on a large number of optical discs, and the video database access means comprises a plurality of optical disc drive devices operable in parallel. And reads out video data at a specified position of a specified optical disc in a video database. The video reproducing means reproduces a plurality of video data output from a plurality of optical disc driving devices, respectively, and reproduces a plurality of video data. The video effect processing means inputs a plurality of video signals and outputs a video signal designated by the video signal. While performing image effect processing, the video signal of one system is switched to the video signal of the other system and output. The script information includes point time data that specifies a plurality of video switching point times, and the time information before and after each video switching point. its storage position of each video data to be outputted Te
Each storage location data to be specified and multiple types of video effects
And a video effect data designating each respective video effect to be used for each video switching point from the control means, the image data to be used between the video effect switching point according to point time data and stores the position data of the script information A karaoke video reproducing apparatus which reads out the video data while switching the optical disc drive by the video database access means and operates the video effect processing means at each video effect switching point according to the video effect data.