JP3717778B2 - Karaoke equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a karaoke apparatus that displays various types of information on a monitor when karaoke performance is started, and more particularly to improvement of the display switching mode.
[0002]
[Prior art]
In the karaoke apparatus, when the performance of the karaoke song starts, various information is displayed because the user's attention is the highest. Examples of information displayed include the current reservation status, information on the original singer of the karaoke song to be played, and the title of the karaoke song is displayed thereafter to start the karaoke performance. All of these images are synthesized by the control unit of the karaoke apparatus.
[0003]
[Problems to be solved by the invention]
Since the control unit sequentially synthesizes and outputs the images, conventionally, the control unit switches the images with instantaneous cut-in. However, since switching between screens with cut-in is not sudden and not very impressive, it is desirable to display them with fade-in and fade-out. However, there is a problem in that the control unit causes the image processing to fade in and fade out by internal processing, which imposes a heavy burden on the image processing and hinders the control of the karaoke apparatus. There is a problem that it is necessary to provide a high control unit, leading to an increase in cost. Lyrics Teloc There is also a problem that providing a function for generating a black image for fade-in / out in the display control unit for superimposing a scene image and superimposing leads to an increase in cost.
[0004]
An object of the present invention is to provide a karaoke apparatus that realizes fade-in and fade-out of an internal video without using a large-scale configuration by using an external video signal.
[0005]
[Means for Solving the Problems]
The invention of claim 1 is a karaoke apparatus comprising a control unit, a playback unit, and a display control unit, wherein the control unit performs performance of karaoke music, generates internal video such as lyrics telop, and displays it. Control the control means, the playback unit plays the video source and outputs an external video such as a background video, the display control unit can fade and combine the internal video and the external video, the internal video fades out, The fade-in is performed by muting the luminance signal of the external video to generate only the synchronization signal and crossfading the synchronization signal and the internal video.
According to a second aspect of the present invention, in the first aspect of the invention, the control unit generates the next song reservation list of the karaoke song, the singer information and the title image of the karaoke song to be played as an internal video, and the first display control unit -The first process for performing the third process causes the next song reservation list to be displayed and then faded out. The second process causes the singer information to be faded in and displayed, and then faded out. After the external video is faded in and displayed, the title image is synthesized and the performance of the karaoke song is started .
[0006]
In order to fade out and fade in the internal video, a black video signal that is the start of fade-in or the end of fade-out is required. If a circuit for separately creating this black video signal is provided, the display control unit becomes large, and this black image signal is created using an external video such as a background video input from the playback unit. In other words, a black video signal is created by muting the luminance signal (which may include color signals) of the video signal to make only the synchronization signal, and crossfading the external video and the internal video only with this synchronization signal. By doing so, the internal video is faded in and out. As a result, the internal video can be faded in and out without increasing the configuration.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
A karaoke apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a diagram showing a video switching procedure at the start of karaoke performance in this karaoke apparatus. This karaoke apparatus displays various screens according to the procedure shown in FIG. First, the next song reservation list, which is a list of currently reserved songs, is displayed to inform the singer what song is to be played next ((A) in the figure). Thereafter, singer information, which is information related to the original singer of this song, is displayed ((C) in the figure). In this figure, the singer information is a jacket photo of the new song. Then, the background video is displayed, and the title is superimposed on it to start playing the karaoke song. In order to switch these images smoothly, black images ((B), (D), and (E) in the figure) are inserted between the images, and these are switched by crossfading. Such video crossfading is performed by the display control unit 23 (see FIG. 1).
[0008]
The configuration of this karaoke apparatus will be described with reference to the block diagram of FIG. The CPU 10 for controlling the operation of the karaoke apparatus has an ROM 11, a RAM 12, a remote control receiver 13, a display 14 on the panel, a panel switch 15, a system hard disk 17, a background video hard disk 18, 19 and a communication controller 20 via an internal bus. Decoders 21 and 22, display control unit 23, musical tone generation unit 24, and audio circuit 25 are connected.
[0009]
The ROM 11 stores a boot program for starting the karaoke device. The boot program is a program for accessing the hard disk, reading the system program, and starting the apparatus. Based on this boot program, the CPU 10 accesses the system hard disk 17 in which the system program / karaoke performance execution program is stored. In addition to the system program / karaoke performance execution program, the system hard disk 17 stores song data, a singer information table, and the like shown in FIG. The song data includes performance data for generating musical sounds, back chorus data obtained by converting the back chorus into PCM, lyrics data for displaying lyrics telop, and the like. The background video hard disks 18 and 19 store video data for the background video.
[0010]
The communication control unit 20 is a device that has a modem and a terminal adapter and communicates with the distribution center 9 via a telephone line. The distribution center 9 periodically calls the karaoke device and distributes music data of new songs. The distributed music data of the new music is written in the music data storage area 171 (see FIG. 2) of the system hard disk 17. In addition, the distribution center 9 distributes the singer information table shown in FIG.
[0011]
The remote control device 5 includes a key switch such as a numeric keypad, and outputs a signal such as a song number corresponding to a user's switch operation as an infrared signal. The remote control receiving unit 13 receives an infrared signal sent from the remote control device 5 to restore data such as a song number and input it to the CPU 10. The CPU 10 registers the song number input from the remote controller 5 in the reservation list set in the RAM 12 and plays in order from the karaoke song of the song number registered at the top of the reservation list.
[0012]
The display 14 displays the song number input from the remote controller 5 and the number of reserved songs. The panel switch 15 includes key switches similar to those of the remote control device 5 and can perform music reservation, key control, tempo control, and the like.
[0013]
The tone generator 24 includes a tone generator that synthesizes a tone signal electronically based on the performance data of the song data, and a decoder that demodulates the sound signal by decoding the waveform data of the back chorus. Karaoke performance sound. The generated karaoke performance sound is input to the audio circuit 25. The audio circuit mixes the singing voice signal of the singer input from the microphone 4 and the karaoke performance sound, and outputs from the speaker 2.
[0014]
The display control unit 23 is a device that fades and synthesizes an internal video input from the main body (CPU 10) and an external video such as a background video input from the decoders 21 and 22 and outputs them to the monitor 3. The CPU 10 generates a lyrics telop as an internal video based on the lyrics data during the karaoke performance, and generates singer information about the original singer of the karaoke song and a song title at the start of the performance of the karaoke song. The decoders 21 and 22 read the video data instructed from the CPU 10 from the background video hard disks 18 and 19 and reproduce them alternately. The display control unit 23 switches these videos by crossfading. Details will be described later.
[0015]
The stored contents of the system hard disk 17 and the reading procedure thereof will be described with reference to FIG. A song data storage area 171 is set in the system hard disk 17, and song data of a large number of karaoke songs are stored therein. Each piece of music data is identified by a music number. The song number is represented by a six-digit number XXX-YY. The upper 4 digits (XXXX) are singer numbers, and each original singer of a karaoke song is represented by a unique 4-digit number. The lower two digits are the song number of the singer, and all the songs are uniquely identified by these six digits. The user's request (reservation) is input with this song number. When the song number is input, the song data identified by the song number is read from the song data storage area 171 of the system hard disk 17 and is input to the musical sound generator 24 to perform the karaoke performance.
[0016]
The system hard disk 17 is provided with a singer information table 172. The singer information table 172 stores information about the original singer of each karaoke song (singer information), and each information is identified by a singer number. As singer information, there is a jacket photo of the new song of this singer. When a karaoke song is requested, that is, when a song number is input, the song data storage area 171 is searched with the song number of the song and the song data is read out, and the singer with the upper four digits of this song number The information table 172 is searched, and the singer information of the original singer of this song is read out. The read singer information is input to the VRAM 30 (see FIG. 3) of the display control unit 23 at a predetermined timing.
[0017]
FIG. 3 is a block diagram illustrating a configuration of the display control unit 23. Internal video (original singer information, song title, lyrics telop, etc.) input from the CPU 10 is stored in the VRAM 30. The video signals of the background video (background video A and background video B) input from the decoders 21 and 22 are input to the sync separation circuits 34 and 35. Here, since the decoders 21 and 22 operate alternately and the background images A and B are alternately input, only the system of the background image A will be described below, and only the part number is shown in parentheses for the system of the background image B. . The sync separation circuit 34 (35) separates the luminance signal (color signal) and the sync signal. The luminance signal is input to the fader 38 (39) via the mute 36 (37), and the synchronization signal is input directly to the fader 38 (39). The video signal output from the fader 38 (39) is input to the synthesis circuit 33.
[0018]
The mute 36 (37) processes whether to pass the luminance signal as it is or to block (mute) it according to an instruction from the CPU 10. A fader 38 (39) adjusts the output level of the video signal according to an instruction from the CPU 10, and performs fade-in and fade-out. When the mute circuit 36 (37) does not mute the luminance signal, the input video signal is output to the subsequent stage as it is. When the mute circuit 36 (37) mutes the luminance signal, the input video signal is converted into a black video signal. Output to the subsequent stage.
[0019]
The internal video stored in the VRAM 30 is read by the video signal generation circuit 31, and the video signal generation circuit 31 generates an analog video signal based on the internal video. The video signal of the internal video is input to the synthesis circuit 33 via the fader 32. The combining circuit 33 combines the input internal video and external video and outputs the combined video to the monitor 3.
[0020]
With reference to FIG. 4 and FIG. 5, the video switching procedure at the start of performance of a karaoke song will be described. When a plurality of songs are requested (reserved), the song data of the next song is read into the RAM 12 in advance while the previous song is being played, and video data for reproducing the background video of the song is obtained. Pre-selected. The start of the karaoke song is transmitted to the program 21 for executing the song and the decoder 21 or 22 for reproducing the background video (first). The song data processing and background video playback are now started in synchronization. No musical sound is generated in the beginning of the song data (about 5 seconds) in the section where processing such as sound source setup is performed. In addition, the luminance signal is muted for the first approximately 5 seconds of the background video, and a black video signal is obtained. During this time, the CPU 10 displays a next song reservation list and singer information which are reservation screens. First, the next song reservation list is displayed by cut-in (FIG. 5A). Then, the image of the next song reservation list is faded out by crossfading with an external video (B) in which the luminance signal is muted, and the internal video is switched to singer information (a jacket photo of a new song) during this time ( (C). Then, the singer information is faded in by crossfading the singer information from the external video in FIG. After this singer information is displayed for a certain period of time, this singer information is faded out by cross-fading with an external video (FIG. 4D) whose luminance signal is muted again. Next, the internal video is changed to a black video (FIG. 5E), and cut-in switching from the external video to the internal video of the black screen is performed. Then, the mute of the luminance signal of the external video (BGV) is canceled ((F) in the figure), and the background video is faded in by crossfading from the black internal video to the external video. After that, when the title image (G) in the background image is faded in with the superimpose, the prelude to the karaoke song starts. Since the title image is the head part of the lyrics track, the lyrics telop is displayed in superimpose following this.
[0021]
By doing so, it is possible to realize fade-in and fade-out using cross-fades without separately providing a circuit for generating a black image. The information to be displayed is not limited to singer information. Also, the singer information is not limited to the jacket photo.
[0022]
【The invention's effect】
As described above, by fading out and fading in by crossfading the external video with the luminance signal muted and the internal video, a synchronized fade can be achieved without providing a separate circuit for generating a black video signal. In and fade out can be realized.
[Brief description of the drawings]
FIG. 1 is a block diagram of a karaoke apparatus according to an embodiment of the present invention. FIG. 2 is a diagram for explaining storage contents of a system hard disk of the karaoke apparatus. FIG. 3 is a block diagram of a display control unit of the karaoke apparatus. ] Timing chart of each signal in the display control unit [Fig. 5] Diagram for explaining the switching procedure of the video displayed on the monitor [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Karaoke apparatus main body, 3 ... Monitor, 10 ... CPU, 17 ... System hard disk, 18, 19 ... Background image hard disk, 21, 22 ... Decoder,
30 ... VRAM, 31 ... Video signal generation circuit, 32, 38, 39 ... Fader, 33 ... Synthesis circuit, 34,35 ... Synchronization separation circuit, 36,37 ... Mute circuit

Claims (2)

A karaoke apparatus comprising a control unit, a playback unit, and a display control unit,
The control unit performs the performance of the karaoke song, generates the internal video such as the lyrics telop, and controls the display control means,
The playback unit plays the video source and outputs external video such as background video,
The display control unit can fade and combine the internal video and the external video, and the internal video fade-out and fade-in mute the luminance signal of the external video to generate only the synchronization signal. By crossfading,
Karaoke equipment. The control unit generates the next song reservation list of the karaoke song, the singer information and the title image of the karaoke song to be played as an internal video, and causes the display control unit to perform the first to third processes.
The first process is to display the next song reservation list, then fade out,
In the second process, the singer information is faded in and displayed, then faded out,
The third process fades in the external video and displays it, then synthesizes the title image and starts playing the karaoke song.
The karaoke apparatus according to claim 1.

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