JPH05216487A - 'karaoke' @(3754/24)singing with recorded accompaniment) device - Google Patents

Abstract

PURPOSE:To provide the 'KARAOKE' (singing with a recorded accompaniment) device which can record an external input such as a microphone input. CONSTITUTION:'KARAOKE' data which are read out of a reproduction disk are fetched to a delay circuit 12 through a memory 10. External inputs from a microphone 23 and a camera 24, on the other hand, are inputted to a memory 30 after being processed digitally. A multiplexer 31 generates format data from the data of the delay circuit 12 and the data from the memory 30. The data is sent to an additional type CD-ROM drive 33 through a CD-ROM encoder 32 and recorded on a recording disk 34.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a karaoke machine.

[0002]

2. Description of the Related Art Various existing karaoke apparatuses have been commercialized, but all of them have only a reproducing function of reading data from a medium and reproducing the data. Therefore, when using an existing karaoke device,
The user can only sing a predetermined music in accordance with the reproduced video or sound. If the user's singing voice and the like are to be recorded together with the karaoke data, an external recording device such as a VTR device or a cassette tape recorder is required, and the device becomes large in size, such as preparation of the external device or connection of the external device and the karaoke device. In addition, the recording medium created in this way often differs from the format of the medium suitable for the karaoke apparatus. Therefore, this recording medium cannot be reproduced by the karaoke apparatus.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems of the above conventional example.

[0004]

In view of the above-mentioned problems, the present invention provides a reading means for reading digital data for karaoke from a first medium, a first memory for storing the read data, and an external input terminal. And AD that converts analog data input from the external input terminal into digital data
A converter, a second memory for storing the converted digital data, a multiplexer for inputting the data from the first memory and the data from the second memory to create data for recording, and Data first
An encoder for encoding the data recorded on the recording medium of the second recording medium and a second encoder for encoding the encoded data.
The first characteristic is to have a recording means for recording on the medium.

Further, a reading means for reading the karaoke digital data from the first medium, a first memory for storing the read data, an external input terminal, and an analog data input from the external input terminal are provided. An AD converter for converting into digital data, a second memory for storing the converted digital data, and a delay circuit for reading out the data from the first memory and delaying it so as to match the time series of the second memory , The data from the delay circuit and the second
A multiplexer for inputting data from the memory of the first recording medium to create data for recording, an encoder for encoding the data from the multiplexer into the format of the data recorded on the first recording medium, and the encoder for encoding. And a recording means for recording the data on the second medium.
It is a feature of.

[0006]

The karaoke digital data read from the first medium is sequentially sent to the reproducing system and is output as corresponding karaoke information. At the same time, this digital data is sequentially stored in the first memory. A microphone or a video camera is connected to the external input terminal.
The analog data input from this external input terminal is DA
It is converted to digital data by the converter and stored in the second memory. Both data thus stored are input to the multiplexer. In the multiplexer, both data are selected according to the conditions set by the user in the karaoke device, and the recording data is created. For example, when the condition is set to replace the karaoke video with the video input from the outside, the video data from the first memory is not selected and the video data from the second memory is not selected. Select to create data for recording. Thereafter, this data is encoded by the encoder and then recorded on the second medium.

By the way, the data stored in the first and second memories is the time when the data stored in the first memory is reproduced and output, and the input from the external input terminal is processed to obtain the first data. The progressing speed of the musical piece is deviated by the time including the time until the data is recorded in the second memory. According to the second feature of the present invention, such a shift is corrected by the delay circuit.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, audio information and video information are prepared as karaoke information, and each information is CD-R.
It is compressed and recorded on the OM disc. Various data compression techniques can be used. For example, ADPCM (adaptive differential PCM) can be used for audio information and DVI ^™ of Intel can be used for video information. As shown in FIG. 2, compressed video data and audio data are interleaved and recorded on the tracks of the CD-ROM disc.

FIG. 1 is a circuit block diagram of an embodiment.
In the figure, 1 is an operation unit operated by a user, 2
Is an operation unit interface for connecting the operation unit 1 and a data bus, 3 is a RAM for storing necessary data read from the ROM 4, etc., 4 is a ROM for storing an operation program of the device, and 5 is a data processing unit. CPU to do, 6 is C
The control unit controls the recording / reproducing system for the D-ROM disc. The control unit 6 controls the recording / reproducing system while exchanging data with the RAM 3, the ROM 4, and the CPU 5 in accordance with a command input from the operation unit 1.

Reference numeral 7 is a reproduction CD-ROM disc (reproduction disc), from which data is read by a CD-ROM drive 8. The CD-ROM drive 8 retrieves the data of the corresponding music number from the reproduction disc according to the music number designated by the operation unit 1, and retrieves this data from the CD-R.
Transfer to the OM decoder 9. The CD-ROM decoder performs processing such as error correction or de-interleave on the transferred data, and transfers the compressed video data and audio data to the memory 10.

The data stored in the memory 10 is transferred to the output distributor 11 and the delay circuit 12, respectively. The delay circuit 12 is a FIFO (Fast In Fast Out)
It is composed of memory. The output distribution unit 11 is a switching circuit. Of the data transferred to the output distribution unit 11, the video data is transferred to the video decompression unit 13 and the compressed audio data is transferred to the audio decompression unit 14, and the data compression is released. The restored video data is temporarily stored in the memory 15
After being written into the image display section 16 and read out by the video display unit 16, it is converted into an NTSC signal by the NTSC encoder and displayed by the NTSC monitor 18. On the other hand, the restored acoustic data is converted into an analog signal by the DA converter 19 and then mixed with the microphone input 23 by the mixer 20. Then, after being amplified by the amplifier 21, it is output from the speaker 22.

Next, the recording system of this embodiment will be described. In the present embodiment, the video data recordable on the medium is the video data read from the reproduction disk 7 and the video data captured by the camera 24. The recordable sound data is the accompaniment sound data read from the reproduction disk 7 and the sound data input by the microphone. The user can select desired data from the four types of data and record it on the medium. Data selection conditions can be input via the operation unit 1. The recording system is controlled by the control unit 6 according to this selection condition.

The audio data and the video data input through the terminals A and B are digitized in order by the AD converter 25 and written in the memory 26, respectively.
Each data written in the memory 26 is read by the input distribution unit (switching circuit) 27, of which video data is stored in the video compression unit 28 and sound data is stored in the sound compression unit 2.
9 and is subjected to data compression. Here, each data compression is the same compression as the data compression performed on the reproduction disk 7. The data compressed in this way is written in the memory 30.

Each data thus written in the memory is sent to the multiplexer 31. The data stored in the delay circuit 12 is also sent to the multiplexer 31. In the delay circuit 12, video data and audio data read from the reproduction disc are sequentially written. Here, the delay circuit 12
Directly from the memory 10 without the intervention of the multiplexer 31
When data is sent to the memory, this data and the memory 3
There is a time-series deviation from the data sent from 0. This shift will be described with reference to the time chart shown in FIG.

In the reproduction system, one frame of reproduction data p read from the reproduction disk at a predetermined timing.
1 is restored and displayed during the period when the next one frame of reproduction data p2 is being read from the disc. In the recording system, the input data r1 corresponding to the music portion of the reproduction data p1 is input from the terminal during the period when the reproduction data p1 is displayed. This input data r1 is subjected to AD conversion and compression processing during a period in which the reproduction data p3, which has been read by two frames, is being read from the disc. In the block diagram of FIG. 1, at the timing when the input data r1 is written in the memory 30, the reproduction frame p3 read out by two frames is written in the memory 10. Therefore, in the contents of the data written in the memory 10 and the memory 30, in the time series of the music,
There is always a gap of 2 frames.

The delay circuit 12 has a function of delaying the time series of the data from the memory 10 by 2 frames in order to absorb the shift of 2 frames. Therefore, it is necessary to select, as the FIFO memory forming the delay circuit 12, one having a capacity capable of delaying the two frames.

The multiplexer 31 creates data in the format shown in FIG. 2 from these data in accordance with the conditions set by the user via the operation unit 1 and transfers it to the CD-ROM encoder 32. In FIG. 2, either the reproduced image data from the delay circuit 12 or the input image data from the memory 30 is assigned to the image area. Further, either the reproduced sound data from the delay circuit 12 or the input sound data from the memory 30 is assigned to the sound area 1 and the sound area 2. For example, when video data from the camera 24 is assigned to the video area, accompaniment audio data from the playback disc is assigned to the audio area 1, and audio data from the microphone 23 is assigned to the audio area 2, the multiplexer 31 Only the audio data is selected from the delay circuit 12, both the video data and the audio data are selected from the memory 30, and the data in the format of FIG. 2 is created from each selected data.

The data thus created is a CD
After being encoded in the CD-ROM format by the -ROM encoder 32, it is sent to the write-once CD-ROM drive 33 and written on the write-once disc 34. As the write-once disc, a disc compatible with a CD-ROM disc, for example, a disc introduced in Nikkei Electronics January 23, 1989, P107, can be used.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments.
Various other changes are possible. For example, in the above embodiment,
The video data input from the outside is supplied by the video camera, but the present invention is not limited to this.
It is also possible to reproduce the video data recorded in 1) and supply the reproduced data. Also, the playback medium is a CD
-Although it is a ROM disk, other various media such as a magneto-optical disk can also be used as a recording medium. The recording medium can be similarly changed.

[0020]

As described above, according to the karaoke apparatus of the present invention,
External inputs such as a microphone input can be recorded at the same time, and the function as a karaoke device can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment.

FIG. 2 is a diagram showing a data format in an embodiment.

FIG. 3 is a timing chart in the example.

[Explanation of symbols]

 7 CD-ROM Disc (First Medium) 8 CD-ROM Drive (Reading Means) 10 Memory (First Memory) 12 Delay Circuit (Delay Circuit) 25 AD Converter 30 Memory (Second Memory) 31 Multiplexer 32 CD-ROM Encoder (encoder) 34 Write-once disc (second recording medium) A External input terminal B External input terminal

Claims (2)

[Claims] 1. A reading means for reading digital data for karaoke from a first medium, a first memory for storing the read data, an external input terminal, and analog data input from the external input terminal. An AD converter for converting into digital data, a second memory for storing the converted digital data, data from the first memory and data from the second memory are input to create data for recording. A multiplexer, an encoder for encoding the data from the multiplexer into the format of the data recorded on the first recording medium, and a recording means for recording the encoded data on the second medium. And karaoke equipment. 2. A reading means for reading digital data for karaoke from a first medium, a first memory for storing the read data, an external input terminal, and analog data input from the external input terminal. An AD converter for converting into digital data, a second memory for storing the converted digital data, and a delay circuit for reading the data from the first memory and delaying the data so as to match the time series of the second memory A multiplexer for inputting the data from the delay circuit and the data from the second memory to create recording data; and encoding the data from the multiplexer into the format of the data recorded on the first recording medium. And a recording means for recording the encoded data on the second medium.