JP3592373B2 - Karaoke equipment - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a karaoke apparatus for reproducing karaoke data in which karaoke performance data and background moving image data are stored together.
[0002]
[Prior art]
Currently, LD karaoke and sound source karaoke are mainly used as karaoke apparatuses. In the case of LD karaoke, the background video and the performance of the karaoke tune are stored in the LD in synchronization with each other, and the tune and the screen correspond one-to-one, so that the same background video is not reproduced even if the karaoke is played for a long time. Although there is an advantage, the introduction of a new song with a large data amount requires the addition of an LD, which is troublesome.
[0003]
On the other hand, the sound source karaoke has a small amount of data because the song data is composed of sequence data for driving the sound source device, can be transmitted through a telephone line, can quickly introduce new songs, and reduces many songs. There are advantages such as storage in the device.
[0004]
[Problems to be solved by the invention]
However, since the song data of the sound source karaoke cannot store the image data at the same time, it is a method of selecting an appropriate one from the previously stored image data and simultaneously playing it back. Is not always reproduced, and the same background video may be repeated when karaoke is reproduced for a long time.
[0005]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a karaoke apparatus that can store and transmit music data and background video data in synchronization.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided performance data for playing a karaoke song, the first data including a voice signal, the second data including performance timing data for instructing a musical sound generation timing, a silencing timing, and the like, and The compressed moving image data serving as the background video of the karaoke song is divided into a plurality of records, and the read timing data indicating that the data should be read at the same timing common to each record and the contents of each record are identified. reading and downloading means for downloading karaoke data created denoted by the identification data, the karaoke data storage means for storing karaoke data is downloaded, the karaoke data from the karaoke data storage means based on the read timing data, identification Video data and performance based on The data is classified into data, and the moving image data is reproduced based on the reproduction rate of the moving image, the audio signal of the first data is reproduced at the audio signal reproduction rate, and the performance by the second data is performed based on the performance timing data Karaoke performance means to be executed.
According to a second aspect of the present invention, performance data including performance data including background data of a karaoke performance and performance timing data for instructing a tone generation timing and a mute timing of musical tones should be read out at the same common timing for each data. Karaoke data storage means for storing are denoted by the read timing data indicating, with the reproduction on the basis of video data read from the karaoke data storage means to the moving image playback rate based on the read timing data, the read timing data Performance means for executing a performance based on the performance data read based on the performance timing data.
[0007]
[Action]
Karaoke apparatus of the invention is remembers in synchronism with the read timing data to the image data of the performance data and compressed background video karaoke. As a format, there is an extended MPEG1 system or the like. The karaoke data is read out in synchronization with the timing data. Since the reading of the performance data and the reading of the background moving image are executed in synchronization, if this is displayed and emitted, a karaoke performance in which the sound and the screen are synchronized can be performed.
In the karaoke apparatus of the present invention , performance data is stored between compressed image data. During reproduction, as well as play the image data in accordance with the video playback rate, such as NTSC, in between the read timing of the video data, reads the performance data stored. Since the performance data contains performance timing data which is unique timing data, the music is performed based on the performance timing data. Thereby, the image data and the performance data are stored in the format of the image data, and the image reproduction and the music performance can be performed based on the respective original timing data.
[0008]
【Example】
FIG. 1 is a block diagram of a karaoke apparatus according to an embodiment of the present invention. FIG. 2 is a diagram showing a configuration of karaoke data (extended MPEG data) stored in the karaoke apparatus.
[0009]
The data identification section 1 is provided with a storage 2 for storing a plurality of pieces of karaoke data in the format of extended MPEG data. The music selection unit 21 determines which karaoke data is to be read from this storage. The music selection unit 21 executes music selection based on music selection data received from a commander (remote controller) operated by the user. The karaoke data read from the storage 2 is input to the data selection unit 1.
[0010]
FIG. 2 is a diagram showing a configuration of karaoke data stored in the storage 2. The karaoke data is composed of extended MPEG data, and the extended MPEG data is composed of a series of data blocks consisting of a basic part and a characteristic part. In the MPEG1 format, transmission and reading can be performed at a rate of 1.5 Mbps. The basic part consists of a time stamp and MPEG bit stream data. The time stamp is data indicating the output timing of the data block, and corresponds to the read timing data of the present invention . All data included in this data block is output at this timing. The MPEG bit stream data is compressed image data and forms a background video of karaoke. In the MPEG format, image data is compressed by a technique such as DCT. The extension part is composed of sequence data and ADPCM data. The sequence data includes tone sequence data for driving a sound source and lyrics sequence data for displaying lyrics. The sequence data is composed of event data for instructing tone generation / silence and character display / deletion, and duration data for connecting the event data with each other. The duration data corresponds to the performance timing data of the present invention . ADPCM data is audio signal data that cannot be synthesized by a sound source such as a back chorus.
[0011]
Each of the MPEG bit stream data, the sequence data, and the ADPCM data includes one or a plurality of records. Each record is composed of a block number, a data type, an optional control bit, and a data body. The block number is the number of the block to which the record belongs. If the block number is the same, it indicates that the data should be read out at the same timing. The data type is a code for identifying which of the MPEG bit stream, the sequence data and the ADPCM data. The optional control bit is a bit indicating the function of the data, and 1 is written in the optional control bit of the record storing the duration data in the sequence data. The data body is the data body of the record. Note that one frame of image data is encoded over a plurality of records, and the number of records and the data length of each record are undefined. The record length of the sequence data and the ADPCM data is also undefined, and only the data read at the time of this time stamp is stored.
[0012]
In this way, by storing all the data for karaoke performance as unified extended MPEG data, the data can be unified, and the music part and the video part can be combined and stored and transmitted at high speed. Can be.
[0013]
In FIG. 1, a data identification unit 1 selects MPEG bit stream data, sequence data, and ADPCM data from karaoke data (extended MPEG data) read from a storage 2, and respectively selects an MPEG buffer (MPEG fifo) 3, a sequence buffer ( SEQfifo) 4 and ADPCM buffer (ADPCMfifo) 5. The data in the MPEG buffer 3 is read into the MPEG video decoder 6 at the time of the time stamp. The MPEG video decoder 6 reproduces moving image data serving as a background video of karaoke from the MPEG data. Image data reproduced by the MPEG video decoder 6 is input to the synthesizer 10. On the other hand, the data stored in the sequence buffer 4 is read by the VDP (video data processor) 7 and the sound source 8 at the timing of the time stamp. The VDP 7 selects and reads lyrics sequence data from the sequence data. The VDP 7 is connected to a memory 20 storing font (character pattern) data, and generates a character pattern of lyrics based on the input lyrics sequence data. The character pattern generated by the VDP 7 is input to the synthesizer 10. The synthesizer 10 synthesizes the image data input from the MPEG video decoder 6 and the character pattern input from the VDP 7 to create karaoke video data. This karaoke video data is converted by the D / A converter 11 into an analog video signal. This video signal is converted into an NTSC video signal by the NTSC encoder 12 and input to the monitor 13. Thus, when the extended MPEG data is read from the storage 2, the background video with the lyrics is displayed in synchronization with the time stamp.
[0014]
On the other hand, the tone generator 8 selects and reads musical tone sequence data from the sequence data stored in the sequence buffer 4. The sound source 8 generates a tone signal based on the tone sequence data. The ADPCM decoder 9 reads ADPCM data stored in the ADPCM buffer 5, decodes the data, and synthesizes an audio signal. The tone signal generated by the sound source 8 and the audio signal decoded by the ADPCM decoder 9 are input to the adder 14. The tone signal and the voice signal are added and synthesized by the adder 14 and input to the amplifier 15. The signal amplified by the amplifier 15 is mixed with the singing signal input from the microphone 17 by the mixer 16 and then input to the effect circuit 18. The effect circuit 18 applies an effect such as reverberation to the signal, and then outputs the signal to the speaker 19 to emit the sound.
[0015]
As described above, the karaoke performance data is stored in the same format as the background video data. Therefore, by instructing the performance of the karaoke tune, the background video corresponding to the tune is one-to-one corresponding to the tune. They will be displayed in synchronization.
[0016]
In the above embodiment, the sequence data is composed of the event data and the duration data as the sequence data, and the VDP 7 and the sound source 8 detect the timing based on the duration data and execute an event such as generation of a musical tone or display of a character. However, the duration data can be omitted by using an MPEG time stamp and generating an event in accordance with the time stamp attached to the data block to which the event data belongs.
[0017]
In this embodiment, karaoke data composed of MPEG data can be received via a telephone line. However, conventionally, only music data can be downloaded, and a background image is selected from an LD built in the apparatus. On the other hand, in this embodiment, the karaoke data integrated with the background video data can be downloaded. As a result, introduction of data of a new song in which the song and the video correspond one-to-one is accelerated.
[0018]
【The invention's effect】
As described above, according to the present invention, the performance data of the karaoke song and the compressed image data of the background moving image are stored together, and are reproduced in synchronization with one timing data. Background images can be made to correspond one-to-one. In addition, by storing performance data between compressed image data and playing and playing each with separate timing data, it is possible to perform synchronized performance by integrating data, Each can play and play in their own way.
[0019]
[Brief description of the drawings]
FIG. 1 is a diagram showing a data restoration unit of a karaoke apparatus according to an embodiment of the present invention; FIG. 2 is a view showing a data configuration of the karaoke apparatus;

Claims (2)

Performance data for playing a karaoke song, the first data including an audio signal, the second data including performance timing data for instructing a tone generation timing, a silencing timing, and the like, and a background image of the karaoke song Compressed video data is divided into a plurality of records, and each record is created by adding read timing data indicating that data should be read at the same timing common to each data and identification data for identifying the contents of each record. Download means for downloading the generated karaoke data,
Karaoke data storage means for storing downloaded karaoke data,
The karaoke data is read from the karaoke data storage means based on the read timing data, classified into moving image data and performance data based on the identification data, and the moving image data is reproduced based on the reproduction rate of the moving image. Karaoke performance means for reproducing an audio signal at an audio signal reproduction rate and executing a performance based on the second data based on the performance timing data;
A karaoke apparatus comprising: With the video data as a background image of karaoke performance, and, sounding timing of the musical tone, the performance data including performance timing data indicating the SILENT timing, the read timing data indicating that it should be read by the data common in the same timing Karaoke data storage means stored as
The moving image data read from the karaoke data storage means based on the read timing data is reproduced based on the reproduction rate of the moving image, and the performance based on the performance data read based on the read timing data is executed based on the performance timing data. Playing means,
A karaoke apparatus comprising:

Images