JPH0467467A - Information storing device and information reproducing device - Google Patents

Abstract

PURPOSE:To inform the information such as the words of a song to a user also with a method except a visual method by arranging guide sound information at a position to precede the position where the song words information is to be reproduced and making it stored. CONSTITUTION:When an information storing device 2 is played and information within a storage area 1 is reproduced in the advancing direction of time, guide sound information G and accompaniment music information B are reproduced. When the user of the device 2 reproduces song words information with singing it adapted to the accompaniment music information B and so on, the guide sound information G is arranged at a position to precede a position LF where the song words information B is to be reproduced and is stored. Accordingly, the guide sound information G is reproduced first and after that, is comes to the position LF where the song words information is to be reproduced with the elapse of time. While this time, the accompaniment B is reproduced in a background. Thus, the user can know the contents of the words of a song to sing with guide sound before he sings the word of the song.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an information storage device and an information reproducing device, and particularly to an audio information storage device and an audio information reproducing device suitable for karaoke performance.

[Conventional technology]

2. Description of the Related Art Conventionally, a type of karaoke apparatus is known in which accompaniment music is reproduced by playing an information recording medium such as a magnetic tape or a video disk on which only accompaniment music is recorded. By externally connecting an amplifier, a microphone, a speaker, etc., these karaoke devices can mix, control, amplify, and output a vocal voice part and an accompaniment music part that are manually input from the microphone.

[Invention or problem to be solved]

In these karaoke devices, when the user wants to sing the lyrics of the vocal part, the user has to sing while checking the lyrics on the song 51 cart or subtitles on the video screen.

However, there are cases in which a user wants to use a karaoke device in a passenger car. In such a case, it would be convenient if the user could start the lyrics without a lyrics card or the like. Also, depending on the type of karaoke accompaniment music, it may be unclear whether the timing of the song begins or not.
In that case, it would be even more convenient if there was a second one that would let Yusa know when to start singing.

SUMMARY OF THE INVENTION An object of the present invention is to provide an information storage device and an information reproducing device that can notify a user of information such as lyrics by a method other than the visual method.

[Means to solve the problem]

In order to solve the above problem, the invention according to claim 1
It is configured as shown in the figure. In FIG. 1, this information storage device 2 has a storage area 1. As shown in FIG. Storage area 1 includes accompaniment music information B and leading voice information G. This lead audio information G has information content related to lyrics information to be reproduced in accordance with the accompaniment audio information B. The leading voice information G is located at a position where the lyrics information is to be reproduced, and is stored at a position temporally preceding the lyrics information.

The invention according to claim 2 is the invention according to claim 1, in which the lyrics information has a plurality of temporally discontinuous pieces of lyrics information. The leading voice information has a leading voice information piece corresponding to these lyric information pieces, and the leading voice information piece is placed at a position temporally preceding the position where the corresponding lyric information piece is to be played. is memorized.

Further, the invention according to claim 3 is constructed as shown in FIG. This digital information storage device 2D is a digital information storage device having a storage area ID for recording audio information using a pulse code modulation method. and,
The storage area ID is divided into a plurality of sections S-8. Accompaniment music information B and leading voice information piece G are stored in any section S among the plurality of sections 81 to So. The leading voice information piece G is reproduced in conformity with the accompaniment music information B, and the information about the lyrics information. The leading voice information G5 is stored in the digital information storage device 2D at a position where the lyric information piece is to be reproduced and is temporally earlier than 1,1.

The invention recited in claim 4 is constructed as shown in FIG. The information reproducing device 6 includes an information reading means 4, an information demodulating means 5, and a control means 3.

[Effect]

According to the present invention having the above configuration, when the information storage device 2 is played and the information in the storage area 1 is reproduced in the direction of time progression, the leading voice information G
and accompaniment music information B are reproduced. This information storage device 2
The user can match the accompaniment music information B and reproduce the lyrics information without singing. In this case, the leading voice information G is located at the position L p where the lyrics information B is to be played.
It is arranged and stored at a position that is temporally earlier than the previous one. The lead information G is information regarding lyrics information to be reproduced, for example lyrics. Therefore, as time passes, the leading voice information G is first reproduced, and then the position where the lyrics information is to be reproduced is reached. During this time, accompaniment music information B is being played in the background. Because of this, the user can, for example, know the content of the lyrics to be sung by the lead voice (hereinafter referred to as lido voice) before singing the lyrics, and can accurately sing the lyrics without lyrics cards or subtitles. You can sing the lyrics. In other words, it is possible to perform a karaoke performance with a lead voice for the lyrics.

The invention according to claim 2 is the information storage device according to claim 1, in which the lyrics information has a plurality of temporally discontinuous lyrics information pieces, and the leading voice information also has a leading voice information piece corresponding to the lyrics information piece. have. This means that the lyrics information, for example lyrics, is composed of multiple phrases (clauses). In this case, for example, before singing a line of a song, the user can know the content of the line of lyrics to be sung by the lead voice, and can sing the lyrics accurately even without a lyrics cart or seven acts. I can do it.

In the invention set forth in claim 3, this digital information storage device 2D has a section S including accompaniment music information B and lead music information G, and other sections. Therefore, when playing this digital information storage device 2D, by selecting section S, reading and reproducing the information, the user can know the lyrics to be sung before singing, as in the previous section. On the other hand, other sections can be selected by switching. For example, if the selected other section S contains only accompaniment music information B that is the same as the accompaniment music information of section Si, the user can now perform a normal karaoke performance.

In the invention as set forth in claim 4, in this information reproducing device 6, the information reading means 4 reads information from the information storage device 2D. The information demodulating means 5 manually inputs the information read by the information reading means 4, demodulates it into an audio signal, and outputs it. The control means 3 outputs the stored information by selectively switching between the storage area of the section in which the accompaniment music information and the leading voice information are stored and the storage area of other sections of the information recording medium 2D. control playback operations. Therefore, for example, if the other section contains only accompaniment music information, it is possible to selectively switch between a normal karaoke performance and a karaoke performance with lead information for reproduction.

〔Example〕

First Embodiment FIG. 4 shows the data structure of a CD-ROMXA disc, which is a first embodiment of the information storage device according to the invention set forth in claim 1.2 or 3.

A CD-ROM is a CD, which has been established as a digital audio disc, and is a read-only memory (ROM) that stores digital information.
y abbreviation) information storage′! This is a medium used as a j device. The standard was established in 1985, and it is currently being applied to various fields. Characteristics of CD-ROMs include large recording capacity, high reliability, high accessibility, possibility of mass copying, and low cost of playback systems.

The CD-1 (CD-Interae) is a format based on this CD-ROM.
CD-ROMXA) and CD-ROMXA. Both can record and reproduce audio/acoustic information and image information, and both use adaptive differential pulse code modulation (hereinafter referred to as ADPCM. ADPCM: ^dpti) for audio/acoustic information.
ve Differentjal PulseCode
They have in common that they use the abbreviation of Modulation. (Refer to Nikkei Electronics May 15, 1989 issue (No. 473), pages 195-200.) FIG. 4 shows the data sector structure of the storage area of this CD-ROMXA disk.

In the case of CD signal format, 98 subcode frames are treated as 1 block. 1 block is 1/75
Equivalent to seconds. Therefore, 44.1xlO”x16x
2xl/75xl/8-2352 allows 2352 bytes of data to be recorded in one block of a CD. Uni (this, 44.1 x 103 is the sampling frequency, 1
6 represents the quantization number, 2 represents stereo L and R, ]/75 represents time (seconds), and 1/8 represents the conversion rate between bits and bytes.

In CD-ROMXA, one block is treated as one sector, and user data is recorded in each sector. Depending on the size of the user data area, M o de 1 and M o
There is a standard for MODE2, and F for MODE2.
There are standards for orml and Form2, but C in the first embodiment
In the storage area 11 of D-ROMXA, the volume discreptor is Model, and the image information and audio information are M.
Form 2 of o de 2 is adopted.

In FIG. 4, the storage area of this CD-ROMXA]1
In the track T, the volume discreptor T
, sectors T1 to T□, and gap Tc. Volume discreptor To is CD-ROMX
This is the part that stores the identification code indicating that it is A, fluff, startup directory, etc. Sector T1
~Tl1l (for example, T) includes a sink S, a header SI (, k5YNC, a subheader S, user data SUD, and an error detection code section S. The sink 5SYNCDC is 12 bytes and divides sectors. The header S)1 has 4 hides, of which 3 bytes store address information similar to the CD subcoat, and the remaining 1 byte stores mode information.

The subheader 5s11 has eight hides and includes a file number H1, a channel number H, a submode H3, and a cop-ink formation H4. Each item H1 to H4 is hidden and double-written (
(repeat twice).

User data SUD is 2324 bytes in Form 2, and includes data unit Ul-Uo and spare unit U.
It has sP. Figure 4 shows the pig unit Ul-U.
, are each 128 hides, and the spare unit USP is 20
Hyde's example is shown.

Therefore, in this case, it is n-18. The pig units U1 to UI8 have a total of 2304 bytes. and,
The error detection code section S consists of a 4-hide or DC. A voice/acoustic signal is encoded using the ADPCM method and stored in the data unit.

The principle of ADPCM is shown in FIG. First, the current input signal is predicted from the past input signal using an adaptive predictor, and the difference e(-x-y
) is calculated using the subtractor S1.

Next, the difference e is quantized using a plurality of bit numbers by an adaptive quantizer Q and encoded into Ce. Regeneration is the reverse of the above. That is, the encoded signal Ce is processed by the adaptive inverse quantizer Q-1
Returns to the difference e. Next, an adder A adds the signal y predicted by the adaptive predictor and the difference e to obtain an output signal X.

This ADPCM system allows efficient audio data storage with a small number of bits. Bit saving rate (
The audio characteristics also differ depending on the data compression rate). FIG. 6 shows the relationship between ADPCM and audio characteristics. As can be seen from FIG. 6, the A level bit saving rate is 1/2 in stereo storage and 1/4 in monaural storage. B
The level bit saving rate is ]/4 for stereo storage and 1/8 for monaural storage. Furthermore, at the C level, it is 1/8 for stereo storage and /16 for monaural storage. For example, a bit saving rate of 1/4 means that 1/4 of the conventional recording capacity is used, and the remaining 3/4 can be used for storing other data.

In FIG. 4, each data unit U is 128 bytes and has a sound parameter section P and an ADPCM sample data section D. Sound parameter section P,
has 16 bytes and is shown in Figure 5! It stores the number of threads of the prediction filter of the ADPCM adaptive prediction device. The ADPCM sample data section has a capacity of 112 hides and stores data sampled by ADPCM. Therefore, one entire sector has a data capacity of 2016 heights (-112X1-8). Assuming that B-level stereo storage is performed as an ADPCM method, 37.8X]0"X4X2X1/75X1/8=504
Therefore, the number of bytes required for storage is 504 bytes.

Therefore, from 2016÷504-4, four times as much data can be stored as compared to the normal storage method. That is,
With B-level stereo storage, a total of four channels worth of audio/acoustic signals can be stored. In this case, the first
The channel consists of sectors T , T , T ,...T
is memorized. Here, 1 5 9 4h+1, h is an integer greater than or equal to 0. Moreover, the second channel is connected to sectors T , T , T , . . .
II In 4h+2 channels are sectors T , T , T ,...T3 7 11
4h+3, and the fourth channel is sector T, T1°, 4
h+4 respectively.

T...T Now, in a data unit U of a certain sector T,
The ADPCM sample data section stores a karaoke signal obtained by converting accompaniment music information (karaoke music) into a digital signal. And other sectors T
The ADPCM sample data part of the data unit U of , is J
A karaoke signal b, which is the same as JD's karaoke signal S, and a Riethuis signal g, which is leading voice information, are stored. Reedhuis signal g.

is a signal obtained by converting the lead voice that uttered the lyrics into a digital signal. That is, 1 in sectors T , T , T , . . . T which are the first channels.
5 9 4h+1 stores only the karaoke signal, and the second channel, sectors T , T , T . . . , has a power of 26
10" 4h+2 The raoke signal and lead voice signal are stored.

Second Embodiment Next, FIG. 7 shows the configuration of a karaoke apparatus which is a second embodiment of the information reproducing apparatus according to the invention as set forth in claim 4.

In FIG. 7, this karaoke apparatus f61 includes an optical pickup 41 as an information reading means, a demodulation block 51 as an information demodulation means, and a spindle motor 611.
It includes a control block 31 which is a control means and an external terminal 612.

The demodulation block 51 includes a waveform shaping circuit 511, a digital signal processing section 512, a RAM 513, and a CD-ROM.
It has a decoder 514, a RAM 51.5, an ADPCM decoder 516, a RAM 5i7, a D/A ml inverter 518, and a low-pass filter 519.

The control block 31 includes a system controller 311,
It includes a servo circuit 312 and an external human power section 313.

Further, an external amplifier AMP can be connected to the external terminal 612. An external microphone MC and an external speaker SP can be connected to the external amplifier AMP.

Next, the operation of this karaoke device will be explained.

First, the CD-ROM disk 21 is moved to the spindle motor 6.
11. The optical pickup 41 reads digital signals from the recording surface of the compact disc 21. The digital signal φ1 read by the optical pickup 41 is waveform-shaped by the waveform shaping circuit 5]1, and then input to the digital signal processing unit 511 as a signal φ2. In the digital signal processing section 511, first, using a reference clock generated by a crystal, E
Detects the edges of the FM signal and reproduces the data string. Then, a frame synchronization signal is detected from this data string, and the structure of the frame data is accurately reproduced based on this synchronization signal. The frame data undergoes EFM demodulation and
The data becomes symbol data in bit units and is written into the RAM 513. Next, the data stored in the RAM 513 is subjected to digital signal processing. Next, error correction processing is performed, and the CD-ROM decoder outputs the signal φ3 as
First, the address is searched by the absolute time of the subcoat,
Syncs in the data are detected and scrambled or unscrambled. The header address is then checked and the target sector is accessed. The obtained user data is subjected to error detection and correction 1, and then sent to ADPCM as signal φ4.
It is output to decoder 516. ADPCM decoder 516
has an adaptive inverse quantizer and an adaptive predictor (not shown), decodes the signal φ4 into a digital signal, and transmits it to the D/A converter 5]8 as a decoded signal φ5.

D/A converter 518 converts decoded signal φ5 into an analog quantity and sends it to low-pass filter 519 as signal φ6.

Low-pass filter 519 outputs signal φ 2 to external terminal 612 as accurate analog signal φ7. On the other hand, the system controller 311 outputs a control signal φ9 for controlling the spindle motor 611 and the servo circuit 312 of the optical pickup 41 based on the subcoat signal φ8 obtained from the digital signal processing unit 512 and the like.

Analog signal φ which is the output signal of this karaoke device 61
7 is input to the external amplifier AMP.

On the other hand, the audio input to the external microphone NIC is input to the external amplifier A MP as a microphone audio signal φ1o. The external amplifiers A to IP adjust the frequency characteristics and the like of the analog signal φ7, mix it with the microphone audio signal φ1o, amplify it to an appropriate level, and output the signal φ11 to the external speaker SP. The external speaker SP outputs the human-powered signal φ1 as sound. On the other hand, the system controller 311 controls each part of the karaoke apparatus 6, that is, the digital signal processing part 512, the CD-ROM decoder 514, etc. by human control from an external human power part 313 or by a built-in program.
and the ADPCM decoder 516 using control signals φ1□~
Controlled by φ14.

Next, the present invention will be explained in detail using FIG. 4.7.

First, the external input section 313 causes the spindle motor 611 to
Rotate. The optical pickup 41 is a CD-ROM
The digital signal stored in the storage area of the XA data sector 11 is read.

In the storage area, as shown in FIG. 4, accompaniment music is stored in data unit U of sector T.
Karaoke signal converted to J-tal signal 9, and this! A lead voice signal g, which is a digital signal generated from lyrics to be sung with accompaniment music, is stored. When only karaoke songs are to be reproduced, for example, the karaoke signal S stored in the ADPCM sample data section of data unit U in FIG. 4 is reproduced. Here, if the external input unit 313 issues an operation command to read the data unit U by switching operation, the system controller 3
11, the AD of data unit U,
PCM sample data part U.

The lead voice signal g that uttered the lyrics to be sung immediately after the karaoke signal S stored in J j.

is played back and output. The singer who is the user of this karaoke device 61 can know the lyrics to be sung immediately after the lead voice that generates the lyrics, which is the lead voice information, and can sing along with the accompaniment music that is the information for the accompaniment music of that part. By singing the lyrics, you can sing the lyrics accurately. In this way, karaoke with a lead voice can be played, and the user can switch between karaoke with a lead voice and normal karaoke.

In the above embodiment, we have explained the case where the accompaniment music information or karaoke accompaniment music is the leading voice information or the lyrics, but this also applies to plays and literary works where the accompaniment music information is the background sound and the leading voice information is the lines. It may be a reading or a recitation of a scripture, or a combination thereof. Examples include folk songs, musicals, operas, operettas, dramas, movies, and Buddhist scriptures.

In addition, in the above embodiment, the content of the lead voice, which is the leading Mm information, is the lyrics of a karaoke song. timing,
The tempo of the song, the strength of the singing voice to be sung, notes on singing, or a combination of these may be included.

In the case of a lead voice for lyrics, the lead voice may include a plurality of lead voices sung by a plurality of people, such as a duet between a man and a woman. In this case, a plurality of voice signals may be included in the same lead voice signal for the L channel and the R channel, or for example, a lead voice signal for the male part may be recorded in the L channel. , a lead voice signal for the female part may be recorded on the R channel.

Furthermore, the lyrics are not only Japanese, but also English, German, French,
It may be a foreign language such as Chinese, Korean, Spanish, Italian, Portuguese, or Ron'a.

As a digital audio information storage device,
It is also possible to use ordinary CDs, DATs, IC cards, various ROMs, etc.

Furthermore, in the case of a CD-ROM, it is also possible to use the CD-1 standard.

〔Effect of the invention〕

As explained above, according to the present invention, in a karaoke device or the like, it is possible to notify the user of the lyric phrase by voice immediately before the phrase that the user should sing.
This is useful when there are no lyrics cards, when multiple people are singing and a lyrics cart etc. cannot be distributed to everyone, and when practicing the song, and is particularly suitable for use in a passenger car.

In addition, the range of software that can be used is not limited to songs, but can also be used to read plays, literary works, and scriptures, and the content to be uttered is not limited to lyrics, but also the timing at which a song begins to be sung, the tempo of a song, etc. , the strength and weakness of the singing voice, other notes on singing, and information about the audio of software other than singing, so it can be widely applied to entertainment/game devices and learning/educational devices. It has the advantage of being possible.

In addition, as information recording media, CD-ROMXA, CD,
Or to use a digital information storage device such as DAT,
It also has the advantage that the data access time is fast, and even for the same song, it is possible to instantly switch between karaoke with lead voice and normal karaoke.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the principle of the invention as claimed in claim 1 or 2, Fig. 2 is an explanatory diagram of the principle of the invention as claimed in claim 3, Fig. 3 is an explanatory diagram of the principle of the invention as claimed in claim 4, and Fig. 4 is an explanatory diagram of the principle of the invention as claimed in claim 4. Claim 1.2
or a CD-ROMXA which is the first embodiment of the invention described in 3.
5 is a diagram illustrating the principle of the ADPCM system; FIG. 6 is a diagram illustrating the relationship between ADPCM and audio characteristics; FIG. 7 is a diagram illustrating the second aspect of the invention as claimed in claim 4 It is a figure showing the composition of the karaoke machine which is an example. 1. ID...storage area, 2. 2D... information storage device, 3... control means, 4... information reading means, 5... information demodulating means, 6... information reproducing device, 11.・CD-ROMXA storage area, 21・CD-R
OM disk, 31... Control block, 41... Optical pickup, 51... Demodulation block, 61... Karaoke device, 311... System controller, 312... Servo circuit, 511... Waveform shaping Circuit, 512--Digital signal processing unit, 513--RAM. 514-CD-ROM decoder, 515...RAM. 516... ADPCM decoder, 517... RAM. 518...D/A converter, 519...Low pass filter, 611...Spindle motor, 612...External terminal, A,...Adder, AMP...External amplifier, B, 81-B, ...Accompaniment music information, b1-bn...Karaoke signal, C...Encoded signal, D...Adapter #1 device, D,...ADPCM sample data section, G, G1-G
,...Lead voice information, gl"-gn...Lead voice signal, L, Lp
t~LFn...position where lyrics information is to be played, M...external microphone, Q...adaptive quantizer, Ql...adaptive inverse quantizer, 5l-s,...section, S...error detection code section, DC sH...header, 5Sll...subheader, S...sink, ync S engineering...subtractor, SUD...user data, T...track, T, ■ ~T,...Sector, T...Volume Distributor, TG...Gap, U-U...Data unit, n USP...Spare unit, φ~φ14/Signal. ■

Claims (1)

[Scope of Claims] 1. An information storage device storing accompaniment music information and leading voice information regarding lyrics information to be reproduced in accordance with the accompaniment music information, wherein the leading voice information is An information storage device characterized in that the lyrics information is stored at a position temporally preceding a position in the information storage device at which the lyrics information is to be reproduced. 2. The lyrics information has a plurality of temporally discontinuous lyrics information pieces, and the leading voice information has a leading voice information piece corresponding to the lyrics information piece, and the leading voice information piece has a corresponding lyric information piece. 2. The information storage device according to claim 1, wherein the information piece is stored at a position temporally preceding a position where the information piece is to be reproduced. 3. A digital information storage device having a storage area for storing audio information using a pulse code modulation method, wherein the storage area has a storage area divided into a plurality of sections, and the storage area is divided into a plurality of sections. In the storage area, leading voice information regarding accompaniment music information and lyrics information to be reproduced in accordance with the accompaniment music information, which is temporally earlier than a position in the digital information storage device at which the lyrics information is to be reproduced. What is claimed is: 1. A digital information storage device, characterized in that leading voice information is stored at a position where the lead voice information is stored. 4. An information reproducing device for reproducing information from the digital information storage device according to claim 3, comprising: information reading means for reading information from the information storage device; and demodulating the information read by the information reading means into an audio signal. an information demodulating means; and controlling a playback operation so as to output stored information by selectively switching between a storage area of a section in which the accompaniment information and the leading information are recorded and a storage area of a section other than the section. An information reproducing device comprising a control means.