KR0124391B1 - Repeating reproduction system of accompaniment sound in laser disc player - Google Patents

Abstract

a mode setting part(14) capable of setting the output path for the signal of analog mode or digital mode outputted from an audio signal processing part(12) and setting normal/song accompaniment mode according to the switching of a second switch part(22); a micom(16) generating a switch change signal of digital mode in order to output the signal of digital mode from the audio signal processing part(12) and simultaneously outputting a pickup transfer control signal to transfer a pickup(10) to the former position of the disc and performing the switch change control of the second switch part(22); and a first switch part(20) performing the switching operation in order to form a signal path for the signal of digital mode from the audio signal processing part(12).

Description

Accompaniment repeat player for laser disc player

1 is a block diagram of an apparatus for repeating and accommodating an accompaniment of a laser disc player according to an embodiment of the present invention;

FIG. 2 is a flowchart showing the control process of the microcomputer shown in FIG.

* Explanation of symbols for main parts of the drawings

10: pickup 12: audio signal processing unit

14: mode setting section 16: microcomputer

18: pickup transfer unit 20: first and second switch unit

22: first and second switch unit 24: flexible accompaniment processing unit

26: R channel and L channel amplifier 28: R channel and L channel amplifier

The present invention relates to an apparatus for repeating and playing back accompaniment of a laser disc player. In particular, when the user wants to repeatedly practice a song in a vulnerable part using a laser disc player, the accompaniment does not include an auxiliary singer voice to improve the user's singing practice. A repeating playback apparatus for accompaniment of a laser disc player capable of reproducing and outputting only sound repeatedly.

Now, with the development of 'video disc' which is a composite medium of video and audio, it has been able to create a new type of software called visual music, and it is a complete system that works as a single system by combining audio and video. With the birth of / V equipment, it became a full-fledged A / V era where video and audio coexist.

As the A / V era begins in earnest, the public's attention to pure audio culture, which presupposes only auditory appreciation, is gradually shifting toward the A / V culture where audio-visual coexists. As the forerunner of the laser disk player (LDP), which reads information from a disk-shaped information storage medium and reproduces video and audio signals, the laser disk player has attracted attention. Video and audio information recorded on a disc such as a laser disc (LD) is read out, and image and audio signal processing are performed, respectively. The audio signal is output through a speaker and the video signal is displayed on a monitor.

In addition, the laser disk player has been in the spotlight as an image flexible half cycle machine as a part of the leisure line for the public, and a laser disc dedicated to an image flexible half cycle machine is widely used in such a flexible image cycle machine.

As described above, the laser disk dedicated to the image flexible cyclic machine is an audio multi-disc, and the audio multi-disc is recorded in the digital and analog manners. In the digital recording method, the audio is output from the R-channel and L-channel speakers. The signal corresponds to the stereo accompaniment sound, and in the case of the analog recording method, the audio output from the R channel speaker and the L channel speaker corresponds to the voice of the stereo accompaniment sound and the mantissa voice.

In the case of singing a song by applying the voice multiple discs recorded in the digital recording method and the analog method to the laser disc player, it follows the analog recording method in which stereo accompaniment sound and mantissa sound are output.

However, when the accompaniment repeat key, for example, the 'once more' key, is operated to concentrate the vulnerable part during the practice of singing by the analog recording method, the pickup moves from the current position a certain time ago. Since the auxiliary accompaniment voice is output along with the stereo accompaniment sound by the analog recording method, the user who sings cannot know at a time whether the user sings correctly according to the stereo accompaniment sound because of the auxiliary singer voice. Even if the song is sung correctly, there is an unreasonable aspect in which the accompaniment repeat key is operated several times.

Accordingly, the present invention has been made in view of the above circumstances, and an object thereof is to repeat and output only the accompaniment sound excluding the auxiliary singer voice when repeatedly practicing the vulnerable part during the song practice using a laser disc player. The present invention provides a repeating and reproducing apparatus for accompaniment of a laser disc player capable of repeatedly performing a song practice in accordance with the accompaniment sound.

In order to achieve the above object, the apparatus for accommodating an accompaniment of a laser disc player according to an embodiment of the present invention comprises a pickup for reading video information and audio information on a disc and accompaniment by processing audio information read from the pickup. Audio signal processing unit for outputting sound in analog mode or simultaneous accompaniment sound or digital mode signal in which only accompaniment sound is output, and mode setting unit for setting analog / digital mode and normal / flexible accompaniment mode And outputting a switch switching signal to the digital mode and a pick-up transfer control signal for moving the pickup to a position before a predetermined time when the digital mode setting signal is applied from the mode setting unit. Or a microcomputer for outputting a switch switching signal according to the flexible accompaniment mode setting, A pickup transfer unit for transferring the pickup according to a pickup transfer control signal, a first switch unit performing a switching operation based on a switch switching signal from the microcomputer according to whether a digital mode setting signal is input from the mode setting unit, and A second switch unit which performs a switching operation according to the switch switching signal from the microcomputer according to the normal mode or the flexible accompaniment mode setting in the mode setting unit, and combines the audio signal from the microphone with the output signal through the second switch unit; In addition, a flexible accompaniment processor for performing echo sound processing or audio processing, and an R-channel and L-channel amplifier for amplifying the analog mode or digital mode signal in accordance with the switch connection state of the second switch unit.

According to a preferred embodiment of the present invention, the microcomputer switches the switch of the first switch unit when the user operates the repetition key on the mode setting unit so that the digital mode signal is output from the audio signal processing unit and applied to the amplifier. At the same time, the current pickup position is memorized and the pickup is moved to a position ahead of a predetermined time to reproduce the accompaniment sound information. When the pickup reaches the stored pickup position, the pickup is reduced to analog mode, and the accompaniment sound and the auxiliary singer voice To control this output.

According to the present invention configured as described above, when the user operates the repetition key of the mode setting unit to practice the song material of the part that is considered to be vulnerable, the switch of the first switch unit is switched by the switch switching signal output from the microcomputer. Since it is connected to the audio signal processor through a switch switching operation, it is possible to practice singing along with the accompaniment sound output and reproduced from the audio signal processor.

Hereinafter, with reference to the accompanying drawings will be described the present invention in more detail.

1 is a block diagram of an accompaniment recording apparatus of a laser disc player according to an embodiment of the present invention. Reference numeral 10 denotes a pickup for reading video information and audio information recorded on a disc (not shown). From the video information and audio information read out from the pickup 10, the audio information including the accompaniment sound and the sub-acoustic voice is signal-processed so that only the signal or the accompaniment sound of the analog mode in which the accompaniment sound and the sub-acoustic voice are output at the same time is output. An audio signal processing unit capable of outputting a digital mode signal, the audio signal processing unit 12 having a digital output terminal (DR, DL) capable of outputting a digital mode signal and an analogue capable of outputting an analog mode signal. Equipped with output terminals (AR, AL).

In the figure, reference numeral 14 denotes a mode setting unit having keys necessary for use of the laser disc player (LDP), such as an analog / digital mode selection key and a normal / flexible accompaniment mode selection key. 14 is further provided with a repeating key for allowing a user to select a digital mode in which only the accompaniment sound can be output and to repeat playback.

In addition, reference numeral 16 denotes a switch mode signal to the digital mode through the output terminal A when the digital mode setting signal is applied from the mode setting unit 14 while controlling the operation of the entire apparatus. A mode switching signal, that is, a switch switching signal, is outputted through the output terminal B, and the pickup 10 is moved from the current position A 'to a predetermined time position B'. It is a microcomputer for controlling to output the pickup transfer control signal for movement through the output terminal (C).

Here, the microcomputer 16, when the digital mode is released, that is, the pickup 10 is moved to the position (B ') a predetermined time before reaching the current position (A') vocal repeat repeated practice of the weak part When this is completed, the audio signal processing unit 12 outputs a switch switching signal through the output terminal A so that the analog signal can be output, and is reduced to the analog mode. When the switches SW3 and SW4 of the unit 22 are connected to the flexible accompaniment processor 24, a pitch control signal is output through the output terminal D so that the pitch of the mantissa voice, the accompaniment sound, and the user's voice input into the microphone is adjusted. Done.

Reference numeral 18 denotes a pickup transfer unit which transfers the pickup 10 in accordance with the pickup transfer control signal from the microcomputer 16.

According to the present invention, reference numeral 20 denotes a plurality of switches SW1, which perform a switching operation based on a switch switching signal from the microcomputer 16 according to an analog / digital mode key input from the mode setting unit 14. A first switch section having a switch SW2, wherein the switches SW1 and SW2 are output terminals AR and AL of the audio signal processor 12 so that the first switch section 20 initially maintains an analog mode state. The switch SW1 and SW2 are connected to the output terminal DR of the audio signal processor 12 when the switch switching signal from the output terminal A of the microcomputer 16 to the digital mode is applied. DL) and a switching connection.

Further, reference numeral 22 denotes a plurality of (SW3, SW4) for performing a switching operation based on a switch switching signal from the microcomputer 16 in response to the normal / flexible accompaniment mode key input from the mode setting unit 14. It is equipped with a second switch unit.

Here, the second switch unit 22 maintains the normal mode in which the switches SW3 and SW4 are connected to the input terminals of the R and L channel amplifiers 26 and 28 when the disc is normally played back according to the user's intention. On the other hand, when the user sings using a microphone, the music accompaniment processor 24 maintains the music accompaniment mode in which the switches SW3 and SW4 are connected to obtain a pitch control function or an echo effect. The output signal of the second switch section 22 is applied to the R channel and L channel amplifiers 26 and 28 for amplifying the signal and finally output.

Referring to the flowchart of FIG. 2, the accompaniment repeat playback operation by the accompaniment repeat playback apparatus of the laser disk player constructed as described above is as follows.

Once the user turns on the power of the laser disc player and inputs a song number of a desired song, the audio signal processor 12 receives an analog signal, i.e., the accompaniment sound and the auxiliary singer voice. Output is via channel and L channel amplifiers 26 and 28. Accordingly, the user sings a song in accordance with the accompaniment sound and the auxiliary singer voice.

After that, in step 200, the microcomputer 16 determines whether the digital mode setting signal is input from the mode setting unit 14, and the mode is set to repeatedly practice the weak song section while the user is singing. When the digital mode setting signal is applied by operating the repetition key on the unit 14, the microcomputer 16 outputs a switch switching signal through the output terminal A and the pickup transfer control in steps 210 and 220. The signal is output through the output terminal (C).

Accordingly, the switches SW1 and SW2 of the first switch unit 20 which are connected to the output terminals AR and AL of the audio signal processor 12 are output terminals DR and R2 of the audio signal processor 12. DL). At this time, the terminals DR and DL are connected to the input terminals of the R-channel amplifier 26 and the L-channel amplifier 28, respectively, in the normal mode or the flexible accompaniment mode.

At the same time, the microcomputer 16 stores the position A of the current pickup 10, and in step 230, the pickup transport unit 18 picks up the pickup according to the pickup transport control signal from the microcomputer 16. 10) is moved from the current position A 'to the previous position B' for a predetermined time, for example, about 5 seconds.

Subsequently, in step 240, the microcomputer 16 determines whether the pickup 10 correctly reaches the preceding position B ′, and when the determination result does not reach the preceding position B ′, The operation of step 230 is repeated, and when the pickup 10 reaches the previous position B 'correctly, the pickup 10 reads the audio information recorded in the preceding position B'. The audio signal processor 12 is applied.

Accordingly, the digital accompaniment sound signal processed by the audio signal processor 12 through the first and second switch units 20 and 22 is predetermined by the R and L channel amplifiers 26 and 28. Amplified to audio level and output.

Subsequently, in step 250, the user exercises a song according to the accompaniment sound. In step 260, the microcomputer 16 transmits the microcomputer 16 to the microcomputer 16 before the pickup 10 is switched to the previous position, that is, the digital mode. It is determined whether the stored current position A 'is reached and the operation of the step 250 is continued if the stored current position A' is not reached, while the pickup 10 is stored in the stored position A '. When the current position A 'is reached, the microcomputer 16 outputs the switch switching signal through the output terminal A in step 270, thereby outputting the output terminals DR and DL of the current audio signal processor 12. Are connected to the output terminals AR and AL of the audio signal processing unit 12, respectively.

Accordingly, in step 280, the audio signal processor 12 transmits the first and second switch units 20 and 22 to the analog mode signal, that is, the accompaniment sound and the auxiliary singular audio signal through the output terminals AR and AL. The accompaniment sound and the auxiliary singular voice are output through the R channel and L channel amplifiers 26 and 28.

After that, the song is sung in accordance with the output of the accompaniment and the auxiliary singer voice. At this time, when the user operates a pitch control key (not shown) to adjust the current pitch, the microcomputer 16 generates a voice control signal. Output through the output terminal (D), and if you want to repeatedly practice the song measures of the vulnerable part to operate the repeating key of the mode setting unit 14 to repeat the operation of the above steps 200 ~ 280 It can be done.

In addition, the present invention is not limited to the above embodiment, for example, in the digital mode, the accompaniment sound and the echo sound echoed with the accompaniment sound may be output together, and in the embodiment, the audio signal processing unit 12 outputs the sound. Although the initial signal is set to the analog mode signal, it can be implemented by various modifications without departing from the gist of the present invention, such as enabling the laser disc player to turn on the desired mode after turning on the power of the laser disc player.

According to the apparatus for repeating the accompaniment sound of the laser disc player according to the embodiment of the present invention as described above, when the user operates the repetition key on the mode setting unit to repeatedly practice the vulnerable song measures, the accompaniment sound and the auxiliary singer Unlike the conventional method in which the voice is output simultaneously, only the accompaniment sound is output, so that the song can be repeatedly practiced.

Claims (2)

In accordance with the pickup transfer operation of the pickup transfer unit 18, a pickup 10 for reading video information and audio information on a disc and audio information read out from the pickup 10 are signal-processed to accompaniment sounds and auxiliary singular voice. The audio signal processor 12 and the audio signal from the audio signal processor 12 can output the audio signal from the analog mode signal or the digital mode signal from which only the accompaniment sound is output. In the laser disc player having a normal mode for reproducing and reproducing it immediately, and a second switch unit 22 which is switched to generate a pitch control function or an echo effect from the microphone input by the flexible accommodating processor 24, And selectively setting an output path for an analog mode signal or a digital mode signal output from the audio signal processor 12 according to an operation of the repeat key. When the mode setting unit 14 capable of setting the normal / flexible accompaniment mode according to the switching of the second switch unit 22 and the digital mode according to the repeat key operation of the mode setting unit 14 are set, The pickup transfer unit 18 moves the pickup 10 to a position before the predetermined time while generating a switch switching signal to the digital mode for outputting the digital mode signal from the audio signal processor 12. The microcomputer 16 for switching the second switch unit 22 and the mode setting unit in accordance with setting the normal mode or the flexible accompaniment mode of the mode setting unit 14 and outputting a pick-up transfer control signal. According to the digital mode setting of (14), a switching operation for forming a signal path for the digital mode signal from the audio signal processing unit 12 is performed based on the switch switching signal from the microcomputer 16. An accompaniment repeat reproducing apparatus for a laser disc player, characterized in that it comprises a first switch section (20). The switch (SW1, SW2, SW3) of the first and second switch section (20, 22) when the user operates the repeat key on the mode setting section (14). SW4 is switched to output the digital mode signal from the audio signal processing unit 12 to the R channel and L channel amplifiers 26 and 28, and to store the current pickup position A '. After that, the pickup 10 is moved to a position B 'ahead of a predetermined time to reproduce accompaniment sound information. When the pickup 10 reaches the stored pickup position A', the pickup mode 10 is reduced to analog mode. An accompaniment sound repeating device for a laser disc player, characterized in that the accompaniment sound and the auxiliary singular sound are controlled to be output.