KR20000038571A - System and method for establishing initial play mode of accompanying system for vcr - Google Patents

Abstract

PURPOSE: A system and a method for establishing the play mode of an accompanying system for a VCR are provided to establish the optimum state of echo and volume by detecting the microphone in signal of the accompanying system for the VCR. CONSTITUTION: A user inserts a microphone to a microphone jack 1(15) or to a microphone jack 2(10) in the accompanying system for a VCR, and an adder(30) of a detector unit(320) outputs a high signal to a microcomputer(90), because at least one signal from a detector 1(20) or a detector 2(25) is high. Then, the microcomputer outputs control signals of initial establishment to a controlling unit(45) of volume and to a controlling unit(54) of echo. The controlling unit of volume establishes the amplifying rate of a microphone amplifier 1(35) or a microphone amplifier 2(40) into the half of the maximum value. Also, the controlling unit of echo establishes the delay of an echo delaying unit(60) into the half of the maximum value according to the controlling signal of initial establishment outputted from the microcomputer. Moreover, the microcomputer receives the information about the rill having larger remaining amount of tape between a supplying rill and a winding rill in a cassette tape inserted to a cassette traveling unit(360). Then, the microcomputer controls a servo(50) for moving a head to the location containing a VISS signal, and establishing the rill having larger remaining amount of tape as the supplying rill to travel the tape.

Description

System and method for setting the initial play mode of the song accompaniment system

The present invention relates to a system and method for setting an initial play mode of a song accompaniment system for V-Cal, and more particularly, when a microphone in signal is detected in the song accompaniment system for V-Cal. Initially, the V ac song accompaniment system detects a video index search system (VISS) signal having a large amount of tape, selects a vis signal search direction based on the detected vis signal, and plays back song accompaniment data. A play mode setting system and method.

In general, song accompaniment is to help a person who sings by generating sounds and sound effects of various instruments, and with the development of electronic engineering, professional performers by storing and playing electronically processed musical instrument sounds and sound effects on recording media The high quality accompaniment played by them can be used anytime you want. It is a song accompaniment system for V-Cal to use such a convenient system in connection with V-C which is common in homes.

The various song accompaniment data provided by such a general accompaniment system are recorded in audio tracks of a recording medium such as a video cassette tape, and the time track corresponding to the beginning of each song accompaniment data indicates the starting position of each data block. A bis signal for detection is recorded. An example of such a system is shown in FIG. 1.

Conventional music accompaniment system for V-realism is provided with the microphone jack 1 (100) and the microphone jack 2 (105). Each of the microphone jacks 100 and 105 is connected to a microphone amplifier 1 110 and a microphone amplifier 2 115 to amplify voice data input through each microphone. The output terminals of the microphone amplifiers 110 and 115 are connected to the volume controller 120. The volume controller 120 is connected to receive a control signal supplied from the microcomputer 130 according to the volume control signal input by the user through the key input unit 125. The output terminal of the volume control unit 120 is connected to the echo delay unit 145. The echo delay unit 145 adds an echo to the microphone input signal whose volume is controlled under the control of the echo control unit 155. The output terminal of the echo delay unit 145 is connected to the output amplifier 150 to amplify the microphone input signal to which the echo is added, and the output amplifier 150 is connected to the mixing unit 160. Another input of the mixing unit 160 is connected to an audio signal processing unit 165. The output terminal of the mixing unit 160 is connected to the speaker 170. The microcomputer 130 outputs a control signal to the servo 135 and the deck traveling system 140 to drive the cassette tape. The mixing unit 160 mixes the audio signal input from the microphones 110 and 105 and the audio accompaniment audio signal reproduced from a cassette tape (not shown) and outputs the audio signal through the speaker 170.

A method of setting an initial play mode of a conventional V-along accompaniment system applied to the conventional V-along accompaniment system is shown in FIG. 2.

In the conventional song accompaniment system for the VR song, first, in order to set the initial play mode, a tape insertion step S1 of inserting the song accompaniment cassette tape into the tape deck is performed. When the cassette tape is loaded, an initial reproducing step (S2) of reproducing the song accompaniment data from the current head position of the inserted cassette tape is performed according to a control signal preset in the VR accompaniment system. While the song accompaniment data is being reproduced, a music selection request step S3 of displaying a music selection request character on a VRL screen is performed. In order to determine whether to continue playing the song accompaniment data reproduced according to the external input of the user, an interrupt determination step S4 of determining whether there is an interrupt signal from the outside is performed. When it is confirmed in the interrupt determination step S4 that the user applies the interrupt signal to stop the initial playback, a key input confirmation step S5 for detecting whether the selection key is input from the user is performed. If there is no key input in the key input check step (S5), the process proceeds to the initial playback step (S2). When the key input is confirmed in the key input confirmation step (S5), the music track search step (S6) for searching the position of the music piece selected from the song accompaniment cassette tape is performed. When the music piece search step S6 is completed, a microphone input step S7 for checking a microphone input signal is performed. When the microphone input signal is confirmed, a microphone volume increase determination step S8 of determining whether to increase the volume of the microphone is performed. If the user wants to increase the microphone volume in the microphone volume increase determination step S8, the microphone volume increase step S9 for increasing the microphone volume is performed, otherwise, the microphone volume decrease step S10 is performed. When the microphone volume is determined, an echo addition determination step S11 of determining whether to add an echo to the microphone input signal is performed. If the user selects an echo addition in the echo addition determination step S11, an echo adjustment step S12 of adjusting the echo amount is performed. When the echo adjustment step S12 is completed, a play step S13 of reproducing song accompaniment data of the selected piece of music is performed. If the interrupt signal is not detected in the interrupt step S4, the process proceeds to the microphone input step S7. If the user does not select the echo addition in the echo addition determination step S11, the process proceeds to the play step S13.

According to the play mode setting system and method of the conventional song song accompaniment system as described above, when the tape is inserted, initial playback is performed at the current position of the song accompaniment cassette tape. Most of the song accompaniment played back is not the beginning of the song. Therefore, when the user wants to sing in accord with the song accompaniment, it is inconvenient to stop the initial playback of the tape, find the song accompaniment start position, or set the play mode directly by inputting a selection key.

Secondly, the play mode setting system and method of the conventional song accompaniment system for V-Cal as described above is not only cumbersome but also complicated, because the user's selection is essential for each step performed to insert and play a tape.

Third, the play mode setting system and method of the conventional song accompaniment system for V-C, as described above, take a lot of time to perform each step until play after the tape is inserted, so the play mode setting time of the song accompaniment system is increased. There is a drawback to lengthening.

Accordingly, the present invention has been made to solve the problems of the early play mode setting system and method of the conventional V-along accompaniment system, the first object of the present invention is to detect the microphone in signal of the V-along accompaniment system The present invention provides a play mode setting system and method for a song accompaniment system for V-C that can set echo and volume to an optimal state.

The second object of the present invention is to play a song accompaniment system for the V-Cal to check the remaining amount of the supply reel and rewind reel of the cassette accompaniment tape and to select more songs by performing a vis signal search in a direction in which the remaining amount is high. It is to provide a mode setting system and method.

The third object of the present invention is to forcibly detect a Vis signal and start playing from the detected Vis signal in a forward (+) or reverse (-) manner so that the beginning of the song accompaniment is performed without user input. The present invention provides a play mode setting system and a method of a song accompaniment system for V-Cal.

In order to achieve the above object, the play mode setting system of the song accompaniment system for V-Cal according to the present invention has a key input unit, a microphone input unit consisting of one or more microphone jacks, and whether there is an input signal from the microphone input unit. The microcomputer is controlled to start setting the initial play mode according to the detector unit for detecting, the microphone input signal detected by the detector unit, the detector unit, and the microcomputer. When the input signal of the microphone is detected, the microcomputer controls the microcomputer. A microphone control unit for adjusting the volume of the microphones to a maximum value / 2, a cassette running unit for driving the cassette tape, a microphone running unit for driving the cassette tape, and a microphone control unit and the microcomputer, and the microphone under the control of the microcomputer. To the input signal from the input An echo supply unit for adding a nose, an audio signal processor for processing song accompaniment data obtained from the cassette tape, and an audio output unit connected to the echo supply unit for outputting audio mixed with voice and accompaniment; .

In order to achieve the above object, the play mode setting method of the song accompaniment system for VR according to the present invention includes a microphone input determining step of determining whether a microphone input signal is applied; A volume and echo initial setting step of initially setting the volume and the echo to an intermediate value when it is determined that there is a microphone input signal in the step; A tape insertion step of inserting a cassette accompaniment tape when the initial values of the volume and the echo are set; Checking the remaining amount of tape to check the remaining tape amount of the feed reel and the winding reel of the inserted cassette tape; A determination step of determining whether the remaining amount of the tape wound on the supply reel is greater than the remaining amount of the tape wound on the winding reel according to the checking result; A supply reel VISS detecting step of detecting a video index search system (VISS) signal of the supply reel when the remaining amount of the tape wound on the supply reel is greater than the remaining amount of the tape wound on the reel; A VISS reduction step of reducing the detected VISS signal to reproduce song accompaniment data from the tape wound on the supply reel when the VISS signal of the supply reel is detected; A winding reel VISS signal detecting step of detecting a VISS signal from the tape wound on the reel if the remaining amount of the tape wound on the reel is greater than the remaining amount of the tape reeled on the supply reel in the determining step; A VISS increasing step of increasing the detected VISS signal to reproduce song accompaniment data from the tape wound on the winding reel when the VISS signal of the winding reel is detected; And a play step of reproducing song accompaniment data from the reduced VISS signal or the increased VISS signal.

1 is a block diagram showing an initial play mode setting system of a conventional song accompaniment system for VR.

2 is a flowchart illustrating a method for setting an initial play mode of a conventional song accompaniment system for VR;

Figure 3 is a block diagram showing the initial play mode setting system of the song accompaniment system for VR in accordance with the present invention.

Figure 4 is a flow chart illustrating a method of setting the initial play mode of the song accompaniment system for V-Cal according to the present invention.

<Description of the code | symbol about the principal part of drawing>

15: key input unit 90: microcomputer

310: microphone input unit 320: detector unit

330: microphone control unit 340: echo supply unit

350: audio output unit 360: cassette driving unit

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

3, the play mode setting system of the song accompaniment system for a V-Cal according to the present invention includes a microphone input unit 310 including a microphone jack 1 (5) and a microphone jack 2 (10). The microphone jack 1 (5) is connected to the detector 1 (20) and the microphone jack 2 (10) is connected to the detector 2 (25). The output terminals of the detector 1 (20) and the detector 2 (25) are connected to the adder (30). The adder 30 combines the microphone input signals detected by the detectors 20 and 25 to generate an output signal (usually a high (H) signal) indicating whether a microphone input is present. The detector 1 (20), the detector 2 (25), and the adder (30) constitute a detector (320). Another output terminal of the detector 1 20 is connected to the microphone amplifier 1 35, and another output terminal of the detector 2 25 is connected to the microphone amplifier 2 40. The output terminal of the adder 30 is connected to the microcomputer 30 and the volume control unit 45. The microphone amplifier 1 35, the microphone amplifier 2 40, and the volume controller 45 constitute a microphone controller 330. The output terminal of the volume controller 45 is connected to the echo delay unit 60, and the echo delay unit 60 is connected to the echo control unit 65 and the output amplifier 70. The echo control unit 965 is connected to the microcomputer 90. The echo delay unit 60 and the echo control unit 65 constitute an echo supply unit 340. The microcomputer 90 is connected to a key input unit 15 for inputting a user's selection signal, and the cassette driving unit 360 includes a servo 50 and a deck traveling system 55 for driving a video cassette tape for singing accompaniment. Is connected to. The output terminal of the output amplifier 70 and the output terminal 80 of the audio signal processing unit 80 are connected to the mixing unit 75. The output end of the mixing unit 75 is connected to the speaker 85. The output amplifier 70, the mixing unit 75, the audio signal processing unit 80, and the speaker 85 form an audio output unit 350.

The V ac song accompaniment system having the above configuration is operated as follows. First, when the user inserts a microphone into the microphone jack 1 (5) or microphone jack 2 (10) of the V-Cal song accompaniment system, the adder 30 of the detector 320 is the detector 1 (20) or the detector Since at least one of the output signals from 2 (25) is high, the high signal is output to the microcomputer 90. The microcomputer 90 outputs initial control signals to the volume controller 45 and the echo controller 65. The volume control unit 45 sets the amplification degree of the microphone amplifier 1 35 or the microphone amplifier 2 40 to a maximum value / 2 according to the initial setting control signal. The echo control unit 65 sets the delay of the echo delay unit 60 to a maximum value / 2 according to the initial control signal output from the microcomputer 90. The microcomputer 90 receives the information on the supply reel of the song accompaniment cassette tape inserted into the cassette driving unit 360 and the reel having a large amount of the remaining amount of the tape reel to control the servo 50. The non-moving head is moved to a position where the bis signal exists, and the tape is driven by setting a reel having a large amount of remaining tape as a supply reel.

The operation of the V-alarm accompaniment system described above is to set the initial play mode of the system, and the user only needs to insert a microphone into the microphone jack and insert a video accompaniment tape for the accompaniment into the cassette deck (not shown). The subsequent operations are the same as those of the general song accompaniment system. That is, the user can arbitrarily perform music piece selection, volume adjustment, and echo adjustment through the key input unit 15.

In the initial play mode setting method of the V-along song accompaniment system according to the present invention used in the initial play mode setting system of the V-along song accompaniment system, the microphone input determination step of determining whether the microphone input signal is applied or not; (S15) is included. If it is determined that the microphone input signal is present in the microphone input determination step (S10), the volume and echo initial setup step (S25) for initializing the volume and echo to a maximum value / 2 is performed. When the initial values of the volume and the echo are set, a tape insertion step (S35) of inserting a cassette tape for singing accompaniment is performed. When the cassette tape is inserted, the tape remaining amount checking step (S45) of checking the remaining amount of the tape of the supply reel and the winding reel is performed. As the method for checking the remaining amount of the tape may be used a conventionally disclosed method. According to the result checked in the remaining tape checking step (S45), a step (S55) is performed to determine whether the remaining amount of the tape wound on the supply reel is greater than the remaining amount of the tape wound on the winding reel. If the remaining amount of the tape wound on the supply reel in the determination step (S55) is greater than the remaining amount of the tape wound on the winding reel (S65). The detected VISS signal is reduced to reproduce song accompaniment data from the tape wound on the supply reel (S75). Playback starts from the found VISS signal (S100). On the other hand, if the remaining amount of the tape wound on the winding reel in the determination step (S55) is greater than the remaining amount of the tape wound on the supply reel, the VISS signal is detected from the tape wound on the winding reel (S85). The detected VISS signal is increased to reproduce song accompaniment data from the tape wound on the winding reel (S95). The song accompaniment data is started from the found VISS signal (S100).

As described above, in the initial play mode setting system and method of the VR accompaniment system according to the present invention, echo and volume are automatically set to the maximum value / 2 according to the detected microphone in signal. This can shorten the setting time of the volume.

In the initial play mode setting system and method of the V-alarm accompaniment system according to the present invention, by checking the remaining amount of the supply reel and winding reel of the cassette accompaniment for the song accompaniment, the retrieval proceeds in a direction in which the residual amount is more and more songs There is an effect to choose from.

In the initial play mode setting system and method of the V-alarm accompaniment system according to the present invention, a vis signal is forcibly detected and a reel having a large amount of tape remaining is set as a supply reel to determine the increase or decrease of the vis signal. Accordingly, since the song accompaniment can be played from the beginning within a short time without the user's separate selection, there is an effect of enhancing the user's convenience.

Claims (2)

A microcomputer that controls to start initial play mode setting according to a key input unit, a microphone input unit consisting of one or more microphone jacks, a detector unit detecting whether there is an input signal from the microphone input unit, and a microphone input signal detected by the detector unit. A microphone control unit connected to the detector unit and the microcomputer and controlling the amplification of the microphones according to the control of the microcomputer when an input signal of the microphone is detected; a cassette connected to the microcomputer and driving the cassette tape An audio supply unit connected to a driving unit, the microphone control unit and the microcomputer, for supplying an echo effect to an input signal from the microphone input unit under the control of the microcomputer, and audio processing data obtained from the cassette tape. Signal processor and And an audio output unit connected to the echo supply unit and configured to output audio mixed with voice and accompaniment. A microphone input determining step of determining whether a microphone input signal is applied; A volume and echo initial setup step of initializing the volume and the echo to a maximum value / 2 when it is determined that there is a microphone input signal in this step; A tape insertion step of inserting a cassette accompaniment tape when the initial values of the volume and the echo are set; Checking the remaining amount of tape to check the remaining tape amount of the feed reel and the winding reel of the inserted cassette tape; A determination step of determining whether the remaining amount of the tape wound on the supply reel is greater than the remaining amount of the tape wound on the winding reel according to the checking result; A supply reel VISS detecting step of detecting a video index search system (VISS) signal of the supply reel when the remaining amount of the tape wound on the supply reel is greater than the remaining amount of the tape wound on the reel; A VISS reduction step of reducing the detected VISS signal to reproduce song accompaniment data from the tape wound on the supply reel when the VISS signal of the supply reel is detected; A winding reel VISS signal detecting step of detecting a VISS signal from the tape wound on the reel if the remaining amount of the tape wound on the reel is greater than the remaining amount of the tape reeled on the supply reel in the determining step; A VISS increasing step of increasing the detected VISS signal to reproduce song accompaniment data from the tape wound on the winding reel when the VISS signal of the winding reel is detected; And a play step of reproducing song accompaniment data from the reduced VISS signal or the increased VISS signal.