JPH07306686A - Sound reproducing device - Google Patents

Abstract

PURPOSE:To have karaoke practice to original music without seeing words card. CONSTITUTION:Original music and its lacking music are recorded in the data area of a disk D. When a user reproduces the original music through one music by an optical head H and inputs the place where he wants to switch over from an input part 6 while hearing the music, the information on the switching place is recorded on RAM5 or the like. At reproduction, the information on the switching place is referred to, and the original music and the backing music are regenerated alternately at the section of the same music. A listener can sing a song to backing music at the same section with music hearing one part of the original music, so he can have karaoke practice without seeing the words card.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention makes it possible to alternately reproduce an original song recorded on the same recording medium or a different recording medium and an accompaniment of the original song, so that a so-called karaoke practice is possible. Reproduction device

[0002]

2. Description of the Related Art In a conventional karaoke sound reproducing device,
CD (compact disc) and LD (laser disc)
Only the accompaniment music is played from. In addition, recently, a single CD or the like in which the original music piece composed of an accompaniment music and a singing voice and the accompaniment music of the original music piece are recorded in the same disc has become popular.

[0003]

In the case of an audio device for karaoke, in which only the accompaniment music is reproduced, the original music including the singing voice is not reproduced. I cannot match the singing voice with the intonation of the accompaniment.
Also, when playing back a single CD or the like in which both the original song and the accompaniment song are recorded, the accompaniment song is played after all the original songs are heard, so the original song must be repeated and listened to sufficiently. I can't sing along with the accompaniment. Further, when the above-mentioned single CD is reproduced by a sound reproducing device mounted on a car, since the lyrics card cannot be seen while driving, it is not possible to sing with accurate lyrics in accordance with the accompaniment music.

The present invention is to solve the above-mentioned conventional problems, and enables the user to practice the song without looking at the lyrics card, for example, by making it possible to hear the original song and the accompaniment song alternately. It is an object of the present invention to provide a sound reproducing device as described above.

[0005]

In a sound reproducing apparatus according to the present invention, a first recording section for recording an original song and a second recording section for recording only an accompaniment of the original song are the same recording medium. Alternatively, the first recording section and the second recording section are provided on different recording media.
Reading means for reproducing a music piece from the recording section and a control means for controlling the reading means so as to alternately reproduce the same music piece part of the original music piece and the accompaniment music piece. Is.

In the above, an input section for instructing a switching location between the original music and the accompaniment music and a storage section for storing the switching location in time or data length are provided, and the control means is based on the stored content. The reproduction of the original music and the accompaniment music can be switched alternately.

Further, in the sound reproducing apparatus according to the present invention, the first recording section in which the original song is recorded and the second recording section in which only the accompaniment of the original song is recorded are the same recording medium or different recording mediums. Reading means provided for reproducing music from the first recording section and the second recording section, and writing for writing information of a switching point to the first recording section simultaneously with or separately from recording of the original music. Means and a control means for controlling the reading means so as to alternately reproduce the same music piece of the original music piece and the accompaniment music piece based on the information of the switching portion read by the reading means. It is characterized by.

In the above, the recording medium is a compact disc (CD), a single CD, a read-only mini disc (MD), or the like, and the first recording portion in which the original music is recorded in one of these discs. A second recording unit in which only accompaniment music is recorded is used. Alternatively, two discs of the same type are used, or two discs of different types are used in combination such as a compact disc and a mini disc, and one disc is provided with a first recording section in which an original song is recorded. The other disc may be provided with a second recording section in which only the accompaniment music is recorded. Alternatively, the first recording unit and the second
The recording unit may be provided together with an IC card or a built-in memory, or one of the first and second recording units may be provided with a disc of any of the above types, and the other may be provided with an IC card or a built-in memory.

Further, in the third means, when writing is performed by any one of the recording sections by the writing means, both the first and second recording sections, or one of the recording sections is written. Mini disk or IC for reading
It is provided on the card and built-in memory.

If the recording medium used is a disk, the reading means and the writing means are read-only or recording / playback optical heads, and the recording medium used is I
In the case of C memory or other memory, it is a memory controller or the like.

[0011]

In the first means, the same recording medium or different recording medium provided with the first recording section and the second recording section is used. If the recording medium is a disc,
TOC (Table of Contents read from this disc
nts) data is referred to, and when the recording medium is an IC card, a built-in memory, or the like, the index data stored in these is referred to and the reproducing operation is performed. In this reproducing operation, first, a part of the original music piece (a music piece including an accompaniment music and a singing voice) recorded in the first recording portion is reproduced, and then the original music piece of the accompaniment music piece recorded in the second recording portion is reproduced. The same part as the reproduced part is reproduced. Next, the remaining part of the original music piece recorded in the first recording section is reproduced, then the accompaniment music of the same music piece recorded in the second recording section is reproduced, and this is repeated thereafter.

At this time, although the music is switched, the original music and the accompaniment music may be switched at a constant time interval (for example, every 5 seconds to 10 seconds). However, in this case, since the music pieces are switched at locations with bad divisions, for example, the switching locations with good divisions of music are recorded in the TOC data or index data in advance, and the TOC data or index data is read before reproduction. It may be stored in the memory and the switching between the original music and the accompaniment music may be performed by referring to the switching location of the TOC data or the index data.

Further, in the second means, the information of the switching position of the music is stored in the memory or the like in the control means without including the information of the switching position of the music in the TOC data and the index data. For example, when the listener listens to the original song by first playing the first recording section and listening to the original song, one of the parts provided in the input section at the place where he / she wants to separate Press the operation button. When the recording medium is, for example, a compact disc (CD), the subcode data is read together with the reproduced acoustic data,
It is stored in a memory or a register. This sub-code data includes data such as a time code indicating the time of the music being reproduced and the total reproduction time and a music number, or data indicating the absolute position of reproduction of the data. As described above, when the operation button is pressed while the listener is playing the original song, the control section causes the playback position of the original song when the operation button is pressed to be time based on the subcode data. It is recognized as information or reproduced data length, and the time or data position is stored in a memory or the like in the main control unit.

When all the original music pieces are reproduced and all the switching points are input by the operation buttons and, for example, the reproduction button is next pressed, the original music pieces and the accompaniment music pieces are alternately reproduced. At this time, based on the time information and the data length information stored in the memory or the like, the control section first reproduces the original song from the first recording section,
After reaching the first switching point, the reproduction operation is performed from the second recording section, and the accompaniment music is reproduced for the same time length or data length as the original music piece. Further, the original music piece is reproduced from the first recording section, and when the time or data length of the next switching point is reached, the accompaniment piece is reproduced from the second recording section for the same time or data length. And this will be repeated.

In the third means, a writable and readable mini-disc or other writable and readable IC card or a built-in memory is used as the recording medium.
First, when an original music piece is recorded in the first recording section using a mini disk recorder or the like, at the same time as this recording, the listener arbitrarily inputs the switching position of the original music piece by the operation button of the recorder. Information on the switching location is recorded on the recording medium at the same time as the recording of the original song. Alternatively, it is also possible to newly record the information of the switching location in the first recording section after recording the original music piece in the first recording section.

Next, when a reproducing operation is performed using the above recording medium in the same device as that for recording or in a different player,
The original song is reproduced from the first recording section, the information of the first switching point is read from the recording section, then the reading is switched to the second recording section, and the accompaniment piece is reproduced from the second recording section. Plays for the same time or data length. And this is repeated. As described above, since the original song and the accompaniment are played back repeatedly, you can hear the accompaniment of that part immediately after listening to a part of the original song. You will be able to practice. Especially when driving a car, it is not necessary to look at the lyrics card, so driving safety can be maintained.

Like the second means and the third means, by making it possible to arbitrarily input the switching position between the original music and the accompaniment music with the operation button, the characteristics of the music and the listener's liking of the music can be improved. It is possible to set a switching position according to the setting. Further, when switching between the original music and the accompaniment music, a beep sound such as "Pe" may be emitted.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit block diagram showing a sound reproducing device according to a first embodiment of the present invention, FIG. 2 is an explanatory diagram showing an input operation of information of a switching point, and FIG. 3 is a state in which an original music piece and an accompaniment music piece are reproduced alternately. FIG. 4 is a flowchart showing the reproducing operation. FIG. 1 shows an on-vehicle sound reproducing device. Disk D as a recording medium loaded in this sound reproducing device
Is a so-called single CD. The disk D has a TOC area on the lead-in side and a data area on the outer periphery of the TOC area. In the data area, for example, two original music pieces (accompaniment music and singing voice recorded) are recorded, and thereafter, an accompaniment music (karaoke music) of the same music as the two original music pieces is recorded. In this case, the part in which the two original songs are recorded is the first recording part, and the part in which the two accompaniment songs are recorded is the second recording part.

The data recorded in the data area is
Each song is composed of encoded audio data and sub-code data provided for each frame. In the sub-code data, a music number (music identification data), a time code indicating a reproduction time from the beginning of each music and a total reproduction time of all music, and the like are recorded. Further, TOC data is recorded in the TOC area. The TOC data is data indicating the song number of each song, the start time (start position) and the end time (end position) of each song, and the like. When the disk D is inserted into the sound reproducing device, it is drawn in by a carry-in roller or the like and clamped on the turntable 11. The turntable 11 is rotationally driven by a spindle motor M. Turntable 1
1 and the spindle motor M constitute a rotary drive mechanism for the disk.

An optical head H faces the disk D as a reading means. Laser light emitted from the semiconductor laser in the optical head H is focused on the recording surface of the disk D by the objective lens L. The return light modulated by the pits on the recording surface of the disk is detected by the light receiving element in the optical head H, and the RF output of the detection output (reproduction output or read output) in the optical head H is the RF amplifier 1. To the decoder 2 after being amplified and waveform-shaped. In the decoder 2, acoustic data, TO
C data, subcode data, parity, etc. are obtained. Error correction is performed on the acoustic data by the parity, and the acoustic data is demodulated. And the acoustic data is D
The signal is converted into an analog signal by the / A converter (digital-analog converter) 3 and becomes an audio output (acoustic output). The main control unit (system controller) 4 includes a ROM 5b that stores a control program, a CPU 5a that executes processing operations based on the control program, a memory (storage unit: RAM) 5c that stores various data, and a register. It consists of The TOC data and the subcode data obtained by the decoder 2 are given to the main control unit 4 via the route (a). The TOC data is held in the memory (RAM) 5c. The subcode data is also held in the memory 5c or in a register in the main control unit 4. Further, the input section 6 has various operation buttons, and instructs the main control section 4 such as a reproducing operation.

The drive controller (servo controller) 8 is
It is controlled by the main controller 4. The tracking error signal and the focus error signal obtained by the four-division light receiving section in the optical head H are given to the drive control section 8 through the route (b). By the tracking servo signal and the focus servo signal provided from the drive control unit 8, the optical head H
The tracking correction operation and the focus correction operation are performed in the inside. Further, the optical head H is sent in the radial direction of the disk D by the optical head driving means 9. The optical head driving means 9 has, for example, a motor driver, a motor, and a screw shaft driven by the motor. The optical head H is screwed onto the screw shaft, and the radius of the disk D is increased as the screw shaft rotates. Driven in the direction. The spindle motor M is a motor driving means (motor driver).
It is driven at a constant speed by 10. The optical head driving means 9
The motor drive means 10 is controlled by the drive controller 8.

Next, the operation of the sound reproducing apparatus having the above configuration will be described. In the sound reproducing apparatus shown in FIG. 1, in the same data area of the disc D, the original music piece recorded in the first recording section and the accompaniment music piece of the same music piece as the original music piece recorded in the second recording section. And are played alternately, part by part. There are various methods for setting the switching timing (switching point) between the original music and the accompaniment music, but the most basic method is to switch the original music and the accompaniment music at fixed time intervals. In this case, a program stored in the ROM 5b in the main control unit 4 sets, for example, an operation of switching the original song and the accompaniment song every 10 seconds as the karaoke practice mode. Further, by inputting the operation button of the input unit 6, the time for switching between the original music piece and the accompaniment music piece may be arbitrarily set.

In the reproducing operation, when the disk D is loaded on the turntable 11, the disk D is rotationally driven by the spindle motor M, and the optical head driving means 9 moves the optical head H to the lead-in position of the disk D. Then, the optical head H reads the TOC data at the lead-in position. This TOC data is sent from the decoder 2 to the main controller 4 and stored in the memory (RAM) 5c. When the operation button of the input unit 6 is used to input the setting of the "karaoke practice mode", and further the operation button is operated to input an instruction to select a desired original song (for example, the second song) (ST1 of FIG. 4).
The main controller 4 first refers to the TOC data stored in the memory 5c to select the song number (for example, 2) of the selected song.
The position of the tune) is calculated, and the drive control unit 8 is instructed to perform a search operation. Based on this, the optical head driving means 9 moves the optical head H to the desired starting position of the original song, and the starting position of the song is searched. And the original song is played,
The original song flows from the speaker through the decoder 2 and the D / A converter 3 (ST2). During this period, the subcode data read out from the disc together with the acoustic data is sequentially read into the memory 5c or the register in the main control section 4, so that the reproduction time from the beginning of the music can always be recognized.

When it is determined that the preset time (for example, 10 seconds) has been reached by referring to the time code in the sub-code data (ST3), the main controller 4 drives the drive controller. A command for switching the reproduction is issued to 8. At this time, the TOC data is referred to, and the start position of the accompaniment music of the same music as the original music of the accompaniment music recorded in the second recording portion of the disc is searched. The optical head H is moved to the start position of the accompaniment tune by the optical head drive means 9 controlled by the drive control section 8 and the accompaniment tune is reproduced (ST4). Also at this time, the sub-code data is demodulated by the decoder 2 together with the acoustic data of the accompaniment music and sent to the RAM 5c or the register of the main controller 4. The CPU 5a refers to the time code in this sub-code data to monitor whether or not the accompaniment tune has been reproduced for the same portion (same time) as the portion where the original tune was reproduced (ST).
5). When the accompaniment tune is played for the same time, it is switched to the original tune. At this time, the subcode data stored in the RAM 5c at the end of the reproduction of the previous original song is referred to, the optical head H searches for a subsequent portion of the previously reproduced original song, and the original song is restarted from that position. It is reproduced (ST2). By repeating this, the original music and the accompaniment music are repeatedly reproduced at the same time (for example, every 10 seconds). When it is determined that one accompaniment tune has been reproduced (ST6), the reproduction is terminated (ST7).

In this way, since the parts of the same song of the original song and the accompaniment are alternately reproduced, the listener hears the original song and learns the rhythm and lyrics, and immediately after that, the accompaniment of the same part. You can sing as the song plays. However, if the switching interval between the original song and the accompaniment song is set to a fixed time such as 10 seconds by the program stored in the ROM 5b as described above, the switching between the original song and the accompaniment song is performed with the lyrics. It's unrealistic because it's in the middle of a word, or in the middle of intonation of a song.

Therefore, by recording the information of the switching position in accordance with the characteristics of the original song recorded on the disc D in the TOC data, a more realistic karaoke practice becomes possible. Immediately after the disk D is loaded on the turntable 11 as described above, TOC data is read by the optical head H and stored in the RAM 5c of the main control unit 4.
Therefore, when recording data on the disc D, the TO
If the data indicating the switching point is added to the C data, the data of the switching point in the TOC data is also stored in the memory (RAM) 5c when the disk D is loaded. The data indicating the switching point is time code data at the switching point between the original song and the accompaniment song,
Alternatively, it is information on the data length.

When the "karaoke practice mode" is set by the operation button of the input unit 6 and the play button is pressed, the start position of the original song is searched first as in the case shown in FIG. A portion of a certain length is read by the optical head H and becomes an audio output. At this time, the CPU compares the data relating to the switching point in the TOC data stored in the RAM 5c with the time code of the sequentially read sub code data, and when reaching the switching point (ST3 in FIG. 4), the accompaniment piece is played. Switch to playback. When the reproduction length (reproduction time) of the accompaniment music reaches the same length as the original music (ST5), the reproduction is switched to the original music. Then, the switching is repeated until the accompaniment music of the music ends. In this way, by including the data of the switching location in the TOC data, it becomes possible to switch the original music and the accompaniment music according to the characteristics of the music.

Further, even if the TOC data does not include the data of the switching point, it is possible to arbitrarily set the switching point of the original music piece and the accompaniment music piece by the input operation of the listener. As the operation, first, one of the original songs recorded in the first recording unit of the disc D is designated by the operation button of the input unit 6, and the original song is played through one song. The listener presses a predetermined operation button of the input unit 6 while listening to the original music being reproduced. For example, as shown in FIG. 2 (A), while listening to the original song 12a, the position (time) (I, II, II) at which the user wants to switch to the accompaniment song in accordance with the intonation and the break of the lyrics.
I, ...) With the operation button. This operation input is read by the CPU of the main control unit 4 and stored in the memory (RAM) 5c together with the time code data of the sub code data. Alternatively, on the basis of the time code data of the sub-code data sequentially read at the time of reproducing the original song and the operation input of the input unit 6, the CPU 5a displays the respective parts (A, B, C, ...) Of the song. A start position (start time) and time length (data length) or end positions (end time, switching time) of A, B, C, ... Are calculated as time length or data length, and the result is used as switching information data in the RAM 5c. Memorized in.

After the reproduction of the original music is completed, the "Karaoke practice mode" is set by the operation button of the input section 6, and when the reproduction button is further pressed, the starting position of the original music 12a is searched and the original music 12a is searched. Is reproduced to the position of I where the operation button was first pressed (A portion). In the main controller 4, the time code of the read serve code data of the original music is compared with the switching information data, and when it is judged that the reproduction of the portion A is completed, the optical head H makes the second recording. Then, the start position of the same accompaniment piece 12b as the original piece 12a is searched, and the accompaniment piece 12b is reproduced. When it is determined that the portion a having the same length as the portion A of the original song has been reproduced by the time code of the subcode data read when the accompaniment is reproduced,
The original song 12a is reproduced again from the position of I for the length of B. Next, the part b of the accompaniment tune 12b (the same tune part as B) is reproduced. As a result, as shown in FIG. 3, the same music parts of the original music and the accompaniment music are switched and reproduced in the order of A-A-B-B-C-C.

The switching information data input from the input unit 6 at the time points I, II, III, ... And stored in the RAM 5c is RA until the "Karaoke practice mode" is released.
Continue to be held in M5c. In this example, while listening to the music, the listener himself / herself can input the portion he / she wants to switch between the original music and the accompaniment music, so that the music can be switched according to his / her preference. Further, since it is not necessary to include special data in TOC data or the like, a commercially available single CD including accompaniment can be used as it is. Further, the structure of the sound reproducing device may be the same as that of the conventional CD player.
Since the program stored in the OM 5b need only include the control operation flow relating to the karaoke practice mode, it can be easily added as an option to a vehicle-mounted or home-use CD player.

FIG. 5 shows a sound reproducing apparatus capable of recording and reproducing, in which a mini disk (MD) is used as a disk D as a recording medium. In a sound reproducing device using a mini disk, analog sound information to be recorded is digitized by the A / D converter 21, and is compressed and encoded by the compression encoder 22 as data mainly including information in the audible range. The data compression-encoded by the compression encoder 22 is stored in a memory (buffer memory) 24, and the stored information is sent to the encoder 25 under the control of the memory controller 23 at the recording timing on the mini disk. The recording data is formatted by the encoder 25 and output to the head drive unit 26. In the head drive unit 26,
A modulation current that is modulated based on the formatted data is formed, and this modulation current is sent to the magnetic head 27. At the same time, the disc D is heated by the laser light flux from the optical head 28, and recording is performed on the disc by magnetic field modulation.

At the time of reproduction, the data read from the disk D and waveform-shaped by the waveform-shaping unit 32 is deformatted by the decoder 33 and stored in the memory 24 by the memory controller 23 in a predetermined amount. The stored data is read by a predetermined amount under the control of the memory controller 23 and output to the decompression decoder 34. The memory 24 functions as a shock proof. In the decompression decoder 34,
The compressed data read from the memory 24 is decompressed and restored as digital information, and this digital information is converted into an analog signal by the D / A converter 35 and becomes an audio output. Optical head 28 and magnetic head 2
7, and writing means, and the optical head 28 constitutes reading means. As described above, the optical head 28 heats the recording surface of the disk D by the laser light during recording, and the laser return light from the disk D is detected during reproduction. The movement of the optical head 28 in the radial direction of the disk D is controlled by the optical head driving means 29, and the irradiation intensity of the laser light is controlled.

Reference numeral 30 denotes a motor drive means including a spindle motor. The motor drive means 30 is controlled by the drive control section 31 so that the spot of the laser beam irradiated by the objective lens L and the recording surface of the disk D are controlled. The rotational force is output so that the relative speed in the linear direction is always constant. The optical head drive unit 29 and the motor drive unit 30 are controlled by the drive control unit 31. The main control unit 4 includes a CPU 5a, a ROM 5b, a memory (RA
M) 5c and a register and the like. The input unit 6 has various operation buttons arranged therein. In a mini disc (MD), data relating to the song number and the recording position of the recorded song is recorded in the TOC area. In a sound reproducing device in which one mini disc is used, a plurality of original songs and a plurality of accompaniments of the same songs as the original songs are recorded in the data area of the same disc. The portion of the data area in which the original song is recorded serves as the first recording section in the present invention, and the portion in which the accompaniment song is recorded serves as the second recording section.

In the sound reproducing apparatus using the mini disk shown in FIG. 5, switching when repeating the original music and the accompaniment music is performed.
It can be performed in the same way as described in the embodiment of FIG. For example, by the program stored in the ROM 5b,
The original song of the first recording section and the accompaniment of the second recording section may be repeatedly reproduced at the same time intervals such as 10 seconds, or a special recording program may be used to reproduce the TOC area. The TOC data may include data on the switching point between the original song and the accompaniment song. Alternatively, as shown in FIG. 2 and FIG. 3, while listening to the original song through one song first, the operator inputs the switching points such as I, II, and III by operating the input unit 6, and relates to the input switching points. The data may be stored in the RAM 5c or the like.

However, in the case of using the recordable sound reproducing device as shown in FIG. 5, when recording the original music piece on the mini disk, the data regarding the switching position can be written on the disk together. For example, while listening to the original music being recorded, the operation button of the input unit 6 is pressed at the switching position with the accompaniment music.
When the operation button is pressed, a code indicating a predetermined switching location is output from the memory (RAM) 5c or the like to the encoder 2
5, and a code indicating a switching point is added in the subcode data recorded together with the acoustic data, and the disc D is added.
Record in the data area of.

At the time of reproduction, the main control unit 4 reads a code meaning a switching position from the sub-code data sent from the decoder, and at this time, the reproduction is switched from the original music to the accompaniment music. As a result, when recording the original music, it becomes possible for the listener to add the data regarding the switching position with the accompaniment music to the desired position. Further, in a sound reproducing device that compresses and records data and expands and demodulates like a mini disk, the silent time at the time of switching between the original music and the accompaniment music can be shortened. In the sound reproducing apparatus using the CD shown in FIG. 1, after the reproduction of a part of the original music piece of the disc D is finished, the reproduction start position of the accompaniment music C is searched, the reproduction is then started, and then the reproduction of the original music piece is started. Since the position is searched for and the reproduction is restarted, a silent period indicated by reference numeral 13 in FIG. 3 is long when the original music piece and the accompaniment music piece are switched.

However, in the sound reproducing apparatus using the mini disk shown in FIG. 5, the compressed data read by the optical head 28 during the reproducing operation and demodulated by the decoder is temporarily stored in the memory 24, and thereafter, The decompression decoder 34 decompresses the data to produce an audio output. Therefore, the time during which data is actually read from the disk by the optical head 28 is shorter than the time of a song, and the optical head 28 normally skips the same portion of the recording track of the disk by this time difference. It is like this. Therefore, for example, immediately after the optical head 28 finishes reading the data of a part of the original music, the optical head 28 searches the start position of the accompaniment music by using the time during which the data is expanded by the expansion decoder 34. You can start. By performing such control, the silent time at the time of switching between the original song and the accompaniment song can be shortened. Further, in the embodiment shown in FIGS. 1 and 5, it is possible to cause a speaker to emit a dial tone or a chime sound when switching between the original song and the accompaniment song during the reproducing operation. Further, for example, as shown by B and b in FIG. 3, it is possible to repeat the original part and the accompaniment part of the same part so that the karaoke practice of the same part can be repeated, and when the repeat operation is released by the operation button. , It may be possible to shift to the next C portion of the original song.

In the embodiment described with reference to FIG. 1 and FIG. 5, the first recording portion recording the original music and the second recording recording the accompaniment music on one disc such as a CD or MD. Part, but for example, two CDs or two MDs or a sound reproducing device capable of reproducing both CDs and MDs simultaneously, or a CD or M
In the case of an audio reproducing apparatus capable of reproducing D and a cassette tape at the same time, the original music piece is recorded on one recording medium, the accompaniment music piece is recorded on the other recording medium, and both recording media are reproduced alternately. It can also be activated. Also,
As a recording medium, an IC card capable of compressing and recording acoustic data or a large-capacity built-in memory can be used. In this case, the CD or MD is played back and the original song or accompaniment is played as I.
The information is recorded in the C card or the memory, and at the same time, the information about the music switching position is also recorded in the IC card or the memory. The original music and the accompaniment music may be alternately read from the CD or MD and the IC card or the memory. When the IC card or the memory is used, the reading means and the writing means are a memory controller.

[0039]

As described above, according to the present invention, since the original music and the accompaniment music are alternately reproduced one by one, the original music is partially heard, and immediately after that, the same music accompaniment is heard and sung. Because it is possible, it is the best for karaoke practice. In the case of in-vehicle use, it is possible to practice karaoke without looking at the lyrics card while driving.

It is also possible to set the switching location between the original music and the accompaniment music in accordance with the characteristics and taste of the music.

[Brief description of drawings]

FIG. 1 is a circuit configuration block diagram showing a sound reproducing device according to a first embodiment of the present invention,

FIG. 2 is an explanatory diagram for explaining an input instruction of a switching portion between an original song and an accompaniment song;

FIG. 3 is an explanatory diagram for explaining an alternate playback operation of an original song and an accompaniment song;

FIG. 4 is a flowchart for explaining the operation of the sound reproducing device of the first embodiment of the present invention,

FIG. 5 is a circuit configuration block diagram showing a sound reproducing device according to a second embodiment of the invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 RF amplifier 2 Decoder 3 Digital / analog converter 4 Control section 5a CPU 5b ROM 5c RAM 6 Input section 8 Drive control section 9 Optical head drive means 10 Motor drive means 12a Original song 12b Accompaniment A to C reproduction section of original song ac playback part of accompaniment D disk H optical head M spindle motor

Claims (3)

[Claims] 1. A first recording section for recording an original music piece and a second recording section for recording only an accompaniment of the original music piece are provided on the same recording medium or different recording mediums, and the first recording section is provided. Reading means for reproducing a music piece from the recording section and the second recording section and control means for controlling the reading means so as to alternately reproduce the same music piece of the original music piece and the accompaniment music piece are provided. A sound reproducing device characterized by. 2. An input unit for instructing a switching position between the original music and the accompaniment music and a storage unit for storing the switching position in time or in data length are provided, and the control means is based on the stored contents. The sound reproducing apparatus according to claim 1, wherein reproduction of the original music and the accompaniment music is alternately switched. 3. A first recording section for recording an original song and a second recording section for recording only an accompaniment of the original song are provided on the same recording medium or different recording mediums, and the first recording section is provided. The reading means for reproducing the music from the recording section and the second recording section, the writing means for writing the information of the switching position in the first recording section simultaneously with the recording of the original music or separately from the recording, and the reading means. And a control means for controlling the reading means so as to alternately reproduce the same music piece of the original music piece and the accompaniment music piece based on the information of the switching portion read by the sound reproducing apparatus. .