JPH09106662A - Simultaneous music recorder for picture recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the discontinuance of BGM music at the changing of the scene of a recorded picture image and the mixing of noises by recording a control signal for a performance starting instruction at a recording position in correspondence with the image at the performance starting time in a picture recorder. SOLUTION: When the BGM music selecting button of an operator group 2 is pushed during the picture recording of a video movie 30, a control part 1 gives the instruction to a sequencer 3, and performance is started. At the same time, a start signal is transmitted and recorded in the voice track of the video movie 30 through an encoder 8. When the picture recording of the video movie 30 is interrupted, the interruption of the picture recording is detected with a synchronous detecting circuit 7. The control part 1 gives the instruction to the sequencer 3 so as to stop performance. When the picture recording is restarted, the synchronous detecting circuit 7 detects the active picture recording, and the control part 1 instructs the sequencer 3 to restart the performance from the stopped position of the performance. Thus, even if the scene is changed in reproduction, the continuous performance of BGM can be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a music simultaneous recording apparatus for a recording apparatus for recording simultaneously background music or the like to be recorded in a recorded image in cooperation with a recording apparatus such as a video camera integrated recording apparatus.

[0002]

2. Description of the Related Art In order to play background music (background music: hereinafter also simply referred to as BGM) on an image captured by a video camera integrated recording device (hereinafter referred to as a video movie), BGM will be recorded on the audio track at the same time as video recording,
As a general recording method, a music CD player, a cassette player, or the like is carried with a video movie, music is played by these music players at the same time when the video movie is shot, and the reproduced sound is output from an external microphone of the video movie. A method of mixing with the input sound and recording it on the audio track of the video movie is used.

[0003]

Usually, when shooting a video movie, the video movie is temporarily stopped every time one scene is shot, and the next scene is shot again after a certain time. Sometimes, these multiple scenes are continuously reproduced as a video of one story. The background music is played as continuous music through the images in which each scene is continuous.

In order to realize this with the conventional recording method, every time the shooting of one scene in a video movie is stopped, the music player is stopped at the same time, and the music is played simultaneously with the video movie when shooting the next scene. It is necessary to make the reproduced music continuous by operating the player as well to perform shooting.

However, when such a recording method is manually performed, it is difficult to completely match the driving / stopping timings of the video movie and the music player because the operation is complicated, and the recorded video is reproduced. Sometimes the background music is not exactly continuous at the turn of the scene.

Further, it may be considered that the driving / stop of the video movie and the music player are automatically synchronized with each other, but noise is generated at the break of the driving / stop of the music player by the current technology. In that case, it is not easy to prevent, and when the recorded image is played back, noise such as "Puttsu" is mixed into the background music at the break point of the scene.

The present invention has been made in view of the above problems, and it is an object of the present invention to record BGM and the like at the same time when a video is shot, and to keep the music continuous even if the scene changes.

[0008]

FIG. 1 is a diagram illustrating the principle of a music simultaneous recording apparatus for a recording apparatus according to the present invention, which controls recording of music played together with recorded video of the recording apparatus. In order to solve the above-mentioned problems, a music simultaneous recording apparatus for a recording apparatus according to the present invention is, as one form, a performance means for automatically performing a music piece based on performance data of the music piece, and a performance start for this performance means. And a control signal representing an instruction to start playing a music piece in response to the operation of the operator, and the recording device corresponding to the video being recorded at the time when the playing start instruction is given. Control signal sending means for sending the control signal to the recording device so as to record the control signal at the position, and instructing the performance means to start playing in response to the operation of the operator during recording, and synchronizing with the recording stop of the recording device. To stop the performance of the playing means and restart the playing of the playing means from the stop position in synchronization with the recording start of the recording device; And a second control means controls to start playing of the performance means in accordance issued control signal.

This simultaneous music recording apparatus operates in conjunction with the recording apparatus, and the automatic performance of the performance means is started at the performance start timing of the musical composition designated by the operator using the operating element and the recording apparatus is operated. In response, a control signal indicating the start of playing is sent. The recording device records the control signal at a recording position corresponding to the video being recorded at the time when the performance start instruction is given. Further, at the time of recording, the first control means stops the performance of the performance means in synchronism with the stop of the recording of the recording device,
The performance of the performance means is resumed from the stop position in synchronization with the start of recording by the recording device. During recording and reproduction, the second control means causes the performance means to start playing in accordance with the control signal read by the recording device together with the recording signal. As a result, the music played as the background music during recording is automatically played in the same correspondence between the recorded video and the background music during recording and playback, and moreover, it is possible to perform recording stop / resume operation during recording on the recording device. However, it can be heard as continuous music during playback.

As another form of the music simultaneous recording apparatus for a recording apparatus according to the present invention, a performance means for automatically performing a music piece based on performance data of the music piece and a music piece being played by the recording apparatus by the performance means. In order to record the performance data at the recording position corresponding to the image being recorded along with the performance, the performance data sending means for sequentially sending the performance data of the musical composition being played by the playing means to the recording device, and the recording device And a control means for controlling the performance of the performance means to be stopped in synchronization with the stop of the recording, and to restart the performance of the performance means from the stop position in synchronization with the start of the recording by the recording device.

When the performance means automatically plays a music piece based on the performance data of the music piece, the performance data sending means sequentially sends the performance data of the music piece being played to the recording device. The recording device records the performance data of the music being played by the performance means at a recording position corresponding to the video being recorded along with the performance. Then, the control means controls the performance means to stop the performance in synchronization with the recording stop of the recording device, and to restart the performance of the performance means from the stop position in synchronization with the recording start of the recording device. As a result, the recorded data of the recording device is recorded with the performance data of the musical composition that was being played as the background music at the time of recording, corresponding to the video at each time point. Therefore, if this performance data is read along with the recording signal during playback and automatically played by the playing means, the music played as background music during recording will have the same correspondence between recorded video and background music during recording and playback. It can be listened to as continuous music at the time of reproduction regardless of whether the recording is automatically performed and the recording device is stopped / restarted during recording.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows a block configuration of a music simultaneous recording apparatus for a recording apparatus as one embodiment of the present invention (hereinafter, simply referred to as a recording apparatus in the embodiment of the present invention).
Further, FIG. 3 shows an example of a mode in which the recording apparatus is attached to a video movie. As shown in FIG.
Is fixed and attached to the bottom of the video movie 30 with screws 33. The input terminal and the output terminal of both are connected to each other by a signal line. An earphone 32 can be connected to the recording device 31 if necessary.

As shown in FIG. 2, the recording apparatus 31 has, as input / output terminals, output terminals 13 and 14 for left and right audio signals, input terminals 15 and 16 for left and right audio signals, an input terminal 17 for video signals, and earphones. Output terminal 18, mixed audio output terminal 19
The left and right audio signals output from the output terminals 13 and 14 are input to the left and right audio input terminals of the video movie 30, and the left and right audio signals and video signals from the video movie 30 are respectively input to the audio input terminal 15. , 16 and the video input terminal 17 are connected to signal lines.

The respective constituent elements of the recording apparatus will be described below. The control unit 1 is a circuit configured to include a CPU (Central Processing Unit) and controls the entire device. As will be described later, the control unit 1 controls the sequencer 3 according to the operation of the operator group 2, the operation / stop of the video movie, and the like. Control movements.

The operator group 2 is a BGM desired to be flown in a recorded image.
It consists of a song selection button that selects and plays a song, a stop button that stops playing, and a mode switch. Press this song selection button to select BGM song and BGM at the same time
The performance of the song starts.

The sequencer 3 is controlled by the control unit 1 to start (start) playing, stop (stop) playing, and continue (continue start) the designated BGM tune.
Perform The sequencer 3 notifies the control unit 1 of the state of whether or not it is playing. Further, the sequencer 3 stores the position where the performance was stopped when the performance stop instruction was given, and when the continuation start was instructed, the performance can be performed again from the stored stop position. ing. As described above, in the present embodiment, the continuation start (continue start) refers to the operation of restarting the performance from the position where the performance was stopped.

The music data ROM 4 stores a plurality of BGM music data (performance data) to be played by the sequencer 3. These performance data are stored as MIDI data in this embodiment. The sound source unit 5 actually generates a musical sound by driving the sequencer 3. In this embodiment, a musical tone is generated according to the MIDI signal sent from the sequencer 3.

The microphone 10 is for recording external sound, and the recorded sound is supplied to the audio input terminal (right) of the video movie 30 via the amplifier 11 and also to the mixer 6. The mixer 6 is the microphone 10.
It is a circuit that mixes the sound picked up in (1) or the audio output of the video movie 30 (right) and the BGM sound from the sound source unit 5 and outputs it to the outside.

The earphone output terminal 18 is a terminal for connecting an earphone for monitoring a mixed sound of the BGM sound from the sound source section 5 and the input sound from the microphone 10, which is output from the mixer 6 during recording. The audio output terminal 19 is an output terminal for outputting a mixed sound of the BGM sound and the original sound (playback sound of the video camera), which is output from the mixer 6 during reproduction.

The encoder 8 is a signal (for example, FSK: Frequency Shift) capable of recording a control signal for BGM recording (hereinafter referred to as recording signal) sent from the control unit 1 on the audio track CH1 of the video movie 30. It is a circuit for converting into a keying signal). The decoder 9 is a circuit that converts the same recording signal converted by the encoder 8 and recorded on the audio track CH1 of the video movie 30 into the original format and supplies the signal to the control unit 1. Thus, in this embodiment, the two audio tracks CH1 and C of the video movie 30 are
Of the H2, the left channel audio track CH1 is used for BGM.
It is used as a control track for recording the song. .

The sync detection circuit 7 converts the video output signal of the video movie 30 into a sync signal (vertical / horizontal video sync signal).
It is a circuit that detects the presence or absence of and notifies the control unit 1. Based on this notification, the control unit 1 can determine that the video movie 30 is in operation (recording or reproducing) if there is a synchronization signal, and stop if there is no synchronization signal.

FIG. 4 shows details of the operator group 2. As shown in the figure, the switch buttons respectively assigned the numbers [1-8] are song selection buttons, and the song data RO to be described later.
M4 stores various BGM songs corresponding to these numbers 1 to 8, respectively. By pressing these music selection buttons during recording, music of BGM music is selected and an instruction to start BGM performance is given. The button displaying [STOP] is a stop button, and the BGM being played is
Press when you want to stop. The switch displaying [MODE] is a switch for switching the operation mode of the recording apparatus, and is set to "REC" for recording and "PLAY" for reproduction.

Next, the outline of the operation of the recording apparatus of this embodiment will be described with reference to FIG. In FIG. 5, the recording mode of the start signal and the active signal to the audio track CH1 in the recording track (consisting of the video track and the left and right audio tracks) of the video movie 30 is shown on the time axis together with the operation of the sequencer 3. , [A] is the state during recording,
[B] is a diagram for explaining each state during reproduction. That is, [A] shows a state in which during recording, scene A is recorded on the video track, recording is interrupted, and then scene B is restarted after a lapse of time, and [B] is displayed during playback. The scene A and the scene B recorded in the above are continuously reproduced.

[Recording Operation] First, the operation during recording will be described. In this case, the mode selector switch of the recorder 31 is set to "REC". Video movie 3
When recording 0, the scene captured by the camera is recorded on the video track, and the microphone 10 is recorded on the audio track CH2.
The sound input from is recorded.

(1) When the recording of the video movie 30 is started, the video signal output from the video movie 30 is input to the recording device 31 and given to the synchronization detection circuit 7. When the synchronization detection circuit 7 detects the synchronization signal, the control unit 1 is notified that “there is a synchronization signal”, and the control unit 1 determines that the video movie 30 is being recorded.

(2) When the music selection button in the operator group 2 is pressed during recording of the video movie 30, the controller 1 instructs the sequencer 3 to specify the music number selected by the music selection button and start playing. Give instructions. Further, the control unit 1 sends to the encoder 8 a start signal including information on the song number.

(3) The encoder 8 converts the start signal sent from the control unit 1 into a signal (FSK signal) which can be recorded on the audio track of the video movie 30 and inputs it to the input terminal of the audio track CH1 of the video movie 30. Send out.

(4) The video movie 30 has an encoder 8
The signal from is recorded in real time on the audio track CH1 (left). As a result, as shown in FIG. 5, when the music selection button is pressed during recording of the scene A, the start signal is recorded at the position of the audio track CH1 corresponding to the recorded image at that time. Thus audio track CH1
A start signal and an active signal, which will be described later, are recorded as the same recording signal (a signal used for controlling the operation of the sequencer during video reproduction).

(5) On the other hand, the external sound from the microphone 10 is recorded on the sound track CH2 (right) at any time.

(6) Further, in the recording device 31, the performance sound of the BGM tune from the sound source section 5 and the external sound from the microphone 10 are mixed by the mixer 6 and output as sound. The user can monitor this with the earphone 32.

(7) When the music selection button is pressed, the sequencer 3
When the performance of the BGM tune is started by, the control unit 1 periodically sends an active signal to the encoder 8. This active signal is also transmitted through the encoder 8 to the video movie 3
0 to be recorded on the audio track CH1. After that, active signals are recorded at regular time intervals. This active signal is a signal indicating that the BGM music is being played at the time of recording, that is, the BGM music is played when the recorded video is reproduced.

(8) When the recording of the video movie 30 is interrupted, the sync signal is no longer detected by the sync detection circuit 7, and the control section 1 is notified that there is no sync. The control unit 1 determines that the recording of the video movie 30 has been interrupted,
Instruct the sequencer 3 to stop playing.

(9) When the recording of the video movie 30 is restarted and the recording of the scene B is performed, the synchronization detection circuit 7 again detects the synchronization signal, and the control unit 1 records the video movie 30 accordingly. When it is determined that it is in the middle, the sequencer 3 is instructed to restart the performance. The sequencer 3 continues the performance from the position where the performance was stopped when the recording of the scene A was interrupted. That is, the control unit 1 uses the video movie 3
The control is performed so that the operation of 0 and the operation of the sequencer 3 match.

(10) On the other hand, as shown in scene B of FIG. 5A, when the stop button of the operator group 2 is pressed during recording, the control section 1 stops the performance of the sequencer 3 and , Stop sending the active signal, which was regularly performed until then. After that, the active signal is not recorded on the audio track CH1 of the video movie 30.
That is, thereafter, the audio track CH1 becomes blank until the next music selection button is pressed.

The portion in which the active signal is continuously recorded is the portion in which the BGM was playing at the time of recording, and the portion where the active signal was interrupted was the BGM when the stop button was pressed during recording. Has just stopped playing. The presence or absence of this signal is observed during reproduction, and the sequencer 3 is driven and controlled so that the BGM music is played / stopped in the same manner as during recording.

[Operation During Reproduction] Next, the operation during reproduction will be described. In this case, the mode selector switch of the recorder is set to "PLAY".

(1) When the video movie 30 is reproduced from the beginning of the recorded video, the video signal of the video track and the audio signals of the left and right audio tracks CH1 and CH2 are reproduced, and the audio track CH2 ( The audio signal of (right) is input to the mixer 6, and audio track CH1 (left)
The same recorded signal is input to the decoder 9. The decoder 9 sends to the control unit 1 a start signal obtained by inversely converting the same recording signal recorded on the audio track CH1.

(2) The control unit 1 extracts the song number from the sent start signal and sends it to the sequencer 3 and
The sequencer 3 is instructed to start playing the BGM song having that song number. After that, the sequencer 3 is allowed to continue playing unless the active signal is interrupted.

(3) On the other hand, the sound of the sound track CH2 (right) is mixed with the BGM sound from the sound source section 5 and output as sound. That is, it is possible to listen to a sound in which the sound recorded by the microphone 10 at the time of recording and the BGM performance sound are combined together.

(4) After the start signal, the active signal is periodically given to the control section 1 from the audio track CH1 via the decoder 9. While this active signal is being sent without interruption, the control unit 1 causes the sequencer 3 to continue playing the BGM.

(5) When the reproduction of the audio track CH1 reaches the point where the active signal output is stopped by pressing the stop button during recording (the point where the BGM performance is stopped), the active signal is not sent to the control section 1. The control unit 1 detects this because the next active signal is not sent even after waiting for a predetermined time after the last active signal is sent,
In that case, the control unit 1 instructs the sequencer 3 to stop playing.

(6) The control section 1 waits for the next start signal, and upon receiving the start signal, repeats the operation from (1) above.

In the video movie 30, when the recording is reproduced, the scene A and the scene B where the recording was interrupted at the time of recording
Since the time between the two is zero, the recording interruption point and the recording resumption point are connected, and thus scene A and scene B are continuously reproduced. Exactly the same as this, Scene A during recording
The time point when the sequencer 3 stops playing and the time point when the performance restarts at the transition of the scene B become the same, and the portion corresponding to the scene A and the portion corresponding to the scene B of the audio track CH1 are connected during the reproduction and are cyclically active. Since the signal is reproduced, the performance of the sequencer is continuously performed even at the transition between the scene A and the scene B, and the synchronization of the progress of the performance of the sequencer and the progress of the scene image is maintained.

Next, the details of the processing of the control unit will be described with reference to the flow charts of FIGS. These flowcharts show the details of the processing of the CPU in the control unit 1. The respective figures will be described below.

FIG. 6 shows a routine which is first executed when the power is turned on. First, as initialization processing, variables used in the subsequent processing are initialized, and the sequencer is initialized (step A).

Next, a timer interrupt routine for periodically counting up the time counter t is started. The interrupt cycle of a timer (not shown) inside the control unit 1 is designated and the interrupt prohibition flag is cleared. Thereafter, the timer interrupt routine shown in FIG. 7 is periodically executed at the specified interrupt cycle (step B). For example, if 10 ms is specified as the interrupt cycle, the routine of FIG. 7 is executed every 10 ms thereafter.

After that, the state of the mode changeover switch is checked (step C). If the mode changeover switch is on the "REC" side, the process is moved to the REC routine (step D), and if it is on the "PLAY" side. , PLAY (step E).

The above-described timer interrupt routine of FIG. 7 is executed every time a timer interrupt occurs. First, the value of the variable t is incremented by 1 (step B1). After that, the variable t is compared with a predetermined threshold t _max so as not to overflow (step B2), and this threshold t
_max After the variable t does not exceed the threshold value t _max to the variable t
Is substituted (step B3).

8 to 10 show a REC mode routine executed in the "REC" mode. Variables used in this routine include a play flag, a continuation start flag, and an interval time. The meanings of these variables are as follows:

The play flag is a flag indicating whether the sequencer is playing or stopped, and is set to "1" when the sequencer is instructed to start or continue playing, and is set to "0" when the sequencer is stopped.

The continuation start flag is a flag indicating whether or not continuation start (continue start) is permitted,
It is set to "1" when permitting, and "0" when not permitting. That is, when the performance stop is instructed because the recording is stopped (the sync signal is interrupted), it is set to “1” to permit the continuation start. When the stop button is pressed to instruct to stop the performance, the value is left at "0" so that the continuation start is not permitted.

The interval time T _int stores the time interval for sending an active signal to the encoder 8. In this example, when the interrupt routine of FIG. 7 is called at 10 ms intervals, if T _int = 10, then 100 m
An active signal is sent every s. This value is unchanged.

The REC mode routine will be described in detail below with reference to FIGS. When the REC mode routine is activated, first, the play flag and the continue flag are initialized to "0" (step D1).
Next, the notification from the synchronization detection circuit 7 is checked (step D2) to determine the presence / absence of the synchronization signal (that is, recording / interruption of recording) (step D), and the synchronization signal is "present" or "absent". In either case, the state of the play flag is also determined (steps D4 and D23).

The processing flow is roughly divided into the following four cases depending on the presence or absence of the synchronization signal and the state of the play flag.

(Case 1) Sync signal “present”, play flag = “1” This is the case where the recording is branched to step D5 and the sequencer is playing. (Case 2) Sync signal “present”, play flag = “0”
This is the case where the recording is branched to step D13 and the sequencer is stopped playing. (Case 3) Sync signal “none”, play flag = “1”
Branch to step D24 This is the case where recording is interrupted while the sequencer is playing. (Case 4) Sync signal “none”, play flag = “0”
The process branches to step D28 when the sequencer is stopped playing and recording is interrupted.

The flow chart will be described below in order of the operation of the video movie 30. First, it is assumed that the recording of the video movie 30 is started in a state where no BGM tune has been played yet. In this case, since the sync signal is “present” and the play flag is “0”, the process branches to the case 2 (when the sequencer is stopped playing and recording).

(Case 2) First, it is checked whether or not the music selection button of the operator group 2 has been pressed (step D1).
3) If it is pressed, the following series of processing is executed. That is, the music number corresponding to the number of the pressed music selection button is acquired (step D14), and a start signal including the music number as information is sent to the encoder 8 (step D15). On the other hand, the music piece number is sent to the sequencer 3 to specify the music piece to be played, and further to start the performance (step D16). As a result, the sequencer 3 starts playing the selected musical piece. Next, the variable t is initialized to "0" in order to periodically generate an active signal from the start of the performance (step D17). Also, the play flag is set to "1" to display that the sequencer 3 is playing. After that, the process returns to the process of detecting the presence / absence of the synchronization signal (step D2) and the subsequent processes are repeated (hereinafter, referred to as a loop process) to monitor the change in state. With the above processing, the video movie 30 is being recorded and B
The GM song is playing.

After returning from this (Case 2) to the sync signal presence / absence detection step D2, the determination of the play flag becomes "1" in the step D4. Therefore, in the subsequent loop processing, the case 1 (sequencer is playing). , And during recording).

(Case 1) First, the variable t and the interval time T _int are compared to determine whether t ≧ T _int (step D5). If yes, an active signal is sent to the encoder 8 (step D6), The variable t is reset to "0" (step D7). If no, the process relating to the active signal transmission is skipped and the next process is performed. Since the variable t is periodically incremented by one in the timer interrupt routine, this process is repeated in a loop process so that the active signal is periodically (every time t ≧ T _int ) after the start signal is transmitted. Will be sent out.

In the next process, it is checked whether or not the user has pressed the stop button to stop the BGM music (step D8). If it has been pressed, the sequencer is instructed to stop playing (step D9), and the play flag is set to "0" indicating stop playing (step D10).
As a result, the video movie 30 is being recorded but BGM
The song is in a stopped state. If the stop button has not been pressed, the processing relating to the performance stop is not performed and the next processing is performed.

In the next process, the notification from the sequencer 3 is checked (step D11), and if the sequencer 3 has completed playing the music, the play flag is set to "0" indicating that the playing is stopped. As a result, the video movie 30 is being recorded, but the BGM tune is in a state where the performance is completed. If the performance has not been completed, no processing relating to the performance stop is performed (that is, the play flag is left as it is). Case 1
After finishing the process, return to the step of detecting the presence or absence of the sync signal,
Repeat the loop process.

If the recording is stopped after the video movie 30 is once operated as described above, the sync detection circuit 7 cannot detect the sync signal. As a result, in the step of detecting the presence or absence of the synchronization signal, it is determined that the synchronization signal is "absent" (step D2). When the recording is stopped while playing the BGM tune, the play flag is "1" indicating that the performance is in progress. In this case, the process branches to Case 3 (when the recording is interrupted during the performance of the sequencer) (step). D23).

(Case 3) When the recording of the video movie 30 is stopped, the control unit 1 instructs the sequencer 3 to stop the performance (step D24), and the value of the variable t at this time is saved in the register as the saved value t _0. Yes (Step D2
5). Further, the continuation start flag is set to "1" indicating permission of continuation start (step D26), and the play flag is set to "0" indicating stop of performance (step D27). In this way, preparations are made for when the performance is restarted due to the arrival of the synchronization signal (restart of recording). Then, returning to step D2, the loop processing is repeated to monitor the arrival of the synchronization signal.

When the recording of the video movie 30 is resumed in the above state, the sync signal "present" and the play flag = "0"
Therefore, the process moves to (Case 2).

(Case 2) In this case, it is determined in step D13 that the music selection button has not been pressed, the flow branches to a flow different from the above, and the state of the continuation start flag is determined (step D18). Since the continuation start flag is set to "1" indicating permission for continuation start by the processing of (Case 3), the control unit 1 instructs the sequencer 3 to start continuation (step D19). As a result, the sequencer 3 resumes the performance of the BGM tune that was interrupted in synchronization with the resumption of recording. Also, it is stored in the register so that the active signal will be generated at a constant cycle even after restart (that is, it will be played at a constant cycle from the time when the last active signal was generated before the performance was interrupted during playback). The stored value t ₀ is reset to the variable t (step D20). Next, the continuation start flag is set to "0" indicating non-permission of continuation start, and the process returns to the process of detecting the presence / absence of a synchronization signal (step D2).

On the other hand, when the operation of playing the BGM music is not performed after the recording is started, the continuation start flag is set to the step D.
The initial setting of 1 remains set to "0". Therefore, when it is determined in step D18 that the continuation start flag is 0, the processing of the case (Case 2) is ended as it is and the detection processing of the presence or absence of the synchronization signal (step D
Return to 2).

The play flag is set to "0" when the operation of playing the BGM music is not performed during recording, or when the BGM music is played but the stop button is pressed or the performance is completed. Therefore, if the recording is stopped in this state, the sync signal becomes "no", the play flag becomes 0, and the process branches to the case 4 (when the sequencer is stopped playing and the recording is interrupted).

(Case 4) In this case, neither the sequencer 3 nor the video movie 30 is operating. In this case, the mode change switch is checked (step D2).
8) If the mode has not changed (if it remains in the "REC" mode), the process returns to the process of detecting the presence / absence of a sync signal (step D2) without doing anything. If the mode has been switched to "PLAY", the routine shifts to the PLAY routine described below.

FIG. 11 and FIG. 12 show the operation of the recording apparatus during recording / playback, that is, a PLAY mode routine executed in the "PLAY" mode. The roles and meanings of the variables used in this routine are the same as in the REC mode routine described above.

Here, the following description will be made assuming that the video recorded in the video movie 30 is rewound to the beginning and recorded and reproduced. If the mode switch of the recorder is switched to "PLAY" mode during recording / playback, this PLA
The Y mode routine is executed, and the play flag is initialized to "0" (step E1).

It is checked whether or not a signal has arrived from the decoder 9 (step E2), and if the signal has arrived, it is checked whether or not the signal is a start signal (step E7). If it is a start signal, the performance of the BGM music is started from that position by the following processing. That is, the state of the play flag is checked (step E8). Since the play flag = 0 at this point, it means that the BGM tune has not been played yet. Therefore, from the start signal received from the decoder 9, the information of the tune number included therein is extracted (step E9). ), The tune number is sent to the sequencer 3, a tune to be played is designated, and then a performance start instruction is given (step E10). As a result, the sequencer 3 becomes B
Start playing GM songs. Further, the play flag is set to "1" indicating that the performance is being performed (step E11).

After that, when the state of the play flag is checked (step E14), in this case, the play flag =
Since it is 1, the presence or absence of the sync signal is detected (step E16). If the sync signal is lost, it means that the recording / playback has been stopped, or the video signal has disappeared due to playback of a part where no video signal is recorded. The play flag to "0". After this process,
Alternatively, if the sync signal is “present”, it is further checked whether the sequencer 3 has completed the reproduction of the music (step E).
20). When completed, the play flag is set to "0". After this process, or when the performance has not been completed, the process returns to the monitoring process of the signal coming from the decoder 9 (step E2).

After receiving the start signal, the signal transmitted from the video movie 30 becomes an active signal.
Therefore, it is determined that the signal has arrived from the decoder 9 (E2), and if it is not the start signal (step E7), it is checked whether the signal is an active signal (step E12). If it is an active signal, a variable t for monitoring the arrival period of the active signal is set to "0" to automatically stop the performance (step 13). While the active signal periodically arrives, the flow of step E12 is repeated, and the sequencer 3 plays the BGM tune in parallel with the recording / playback.

If the incoming signal is neither a start signal nor an active signal, the execution is moved to the subsequent step E14 without doing anything. Note that this recording apparatus handles only two types of signals, a start signal and an active signal. Therefore, since no other signal originally comes, the above-mentioned active signal check processing (step E12) is a confirmation process. is there.

After that, an active signal periodically arrives and the BGM music is played. When the active signal stops, it means that the BGM music is stopped during recording. In that case, the sequencer is used. Processing for stopping the performance of 3 is performed. Hereinafter, this process will be described with reference to the flowchart.

When no signal comes from the decoder 9 (step E2), the variable t is compared with the interval T _int ,
It is determined whether t ≧ 2 · T _int (step E3). If the determination result is yes, the last predetermined time after the active signal arrives to (2 · _{T in t)} above has elapsed, it is determined that the active signal is stopped during the recording at the playback position . Therefore, the state of the play flag is checked (step E4), and if it is "1" indicating that the performance is being performed, the sequencer 3 is instructed to stop the performance (step E5) and the play flag is set to "0". (Step E
6).

That is, while the sequencer 3 is playing,
Further, when the active signal which should be sent at the time interval T _int does not come even after waiting for the time [2 · T _int ] (that is, the time 2 · T _{int in} the audio track CH1 of the video movie 30). If there is a blank), the control unit 1 regards this as a signal to stop the performance and stops the sequencer 3.

The play flag is set to "0" when the sequencer 3 is stopped, when the BGM music is completed, or when no performance is performed from the beginning. In this case, play flag = 0 in step E14.
Then, the state of the mode changeover switch is checked in the next step (step E15). If the mode has not been switched (if it is still in the "PLAY" mode), the execution is moved to the next step E20 without doing anything. If the mode has been switched to "REC", the above-mentioned REC mode routine is entered.

When the processing of the steps E14 to E19 is completed, the notification from the sequencer 3 is checked (step E20). If the sequencer 3 has finished playing the music, the play flag is set to "0". .

Various modifications are possible in carrying out the present invention. For example, in the above-described embodiment, the BG is used during recording.
While the active signal is sent out periodically while the M songs are being played, the present invention is not limited to this, and it is interrupted when the playing is interrupted without sending the active signal periodically. It is also possible to write an instruction signal and a performance stop signal to the audio tracks of the video movie when the performance is stopped, and to control the sequencer in accordance with these signals during reproduction.

Further, in the above-mentioned embodiment, the selected song number is transmitted by including it only in the start signal of the song. However, in order to allow the video movie to be reproduced from the middle during reproduction, it is periodically recorded. Alternatively, the song number and the elapsed time from the start of the performance may be paired and stored in the audio track. Thus, even when the video movie is reproduced from the middle during reproduction, the sequencer can refer to the read information and play from the position of the BGM tune corresponding to the middle start position.

In the above-mentioned embodiment, the audio track is used as the track for recording the signal for recording control.
The present invention is not limited to this, and may be recorded on a control track provided other than the video track and the audio track.

In the above embodiment, only the data indicating the performance start and the performance stop is recorded, but the performance data (MIDI data) itself may be recorded instead. In this way performance data BG
When M is recorded, the sound source is directly driven by the read performance data at the time of reproduction, so that a continuous performance can be performed in which noise is not mixed even in the cut portion of the scene.

FIG. 13 shows a state in which a signal corresponding to performance data is written in the audio track CH1. In this mode, these signals are used in pairs such that the sound produced by "Note On" is muted by "Note Off". FIG. 13A shows a case where the recording is interrupted when the note-on of the musical sound “D” is written in the audio track, and then the recording is restarted and then the note-off of “D” is written. ing.

If the recording is interrupted during the recording as described above, the musical sound "D" is forcibly stopped at the time of the interruption of the recording.
The sound is interrupted during recording. However, even if recording is performed with a pause between recordings as described above, note-on and note-off are assumed to be continuous regardless of the pause period on the audio track as shown in FIG. 13 (b). Since the sound is recorded, the sound of the musical sound "D" generated at the note-on during reproduction is silenced as usual at the subsequent note-off without interruption.

Also in this case, the sound signal itself (speech waveform) is not written, as in the above-described embodiment.
Since the control signal for causing the sound source to be sounded is written, noise such as "pussy" does not occur at the joint between the recording interruption point and the recording restart point during reproduction.

Further, in the above-described embodiment, the recording operation / stop of the video movie is detected by observing the synchronizing signal of the video signal, and the operation of the sequencer is controlled accordingly. In other words, the recording device controls the operation of the sequencer by following the operation of the video movie. But,
The present invention is not limited to this, and conversely,
The control unit (CPU) on the recording device side may centrally control the operation of the sequencer and the operation of the video movie. For example, if the remote control input of the video movie is instructed to start / stop the recording, the synchronization of the video movie and the sequencer's operation can be performed without monitoring the video movie's operation by synchronization detection on the recording device side. Can be taken.

In this mode, since it takes time for the mechanical operation of the video movie from the recording instruction to the actual start of the recording, the sequencer operation precedes the recording of the video movie. However, in this case, the control unit may delay the instruction to start / stop the performance to the sequencer for a predetermined time.

If the recording of the video movie is stopped immediately when the recording is interrupted, the performance data signal may not be recorded to the end. For example, this is a case where the video movie recording is stopped while the signal representing the performance data “note on” is being recorded.
In this case, the control unit monitors the operation of the sequencer, and if the sequencer is in the middle of generating performance data such as “note on”, wait for the completion of the performance data and stop recording in the video movie. Just give instructions.

As described above, the control unit controls the start / stop timings of the sequencer and video movie operations, thereby preventing loss of recorded performance data.

In each of the above-described embodiments, the same recording apparatus of the present invention is configured as a device separate from the video movie and is used by being attached to the video movie. Of course, the present invention is not limited to this. The present invention is not limited to this, and may be incorporated as a unit in a video movie. In addition, since it is not always necessary for the user to listen to the BGM tune at the time of recording, the control signal sending mechanism for sending the control signal for the recording and the sequencer and the playing sound playing mechanism of the sound source are provided as separate devices. Even if the video signal is recorded separately, only the former control signal sending mechanism is attached to the video movie for recording, and the latter performance sound reproducing mechanism is attached only during reproduction so that the BGM music is played along with the recording and reproduction. Good.
This makes it possible to downsize the device attached to the video movie during recording and make it easy to handle.

[0092]

As described above, according to the present invention, the BGM music flowing in the background is continuous even at the transition of the scene of the recorded image, and the music becomes discontinuous or noise is mixed. Can be prevented.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of the present invention.

FIG. 2 is a diagram showing a block configuration of a music simultaneous recording apparatus (recording apparatus) as one embodiment of the present invention.

FIG. 3 is a diagram illustrating a manner of attachment of the recording apparatus of the embodiment to a video movie.

FIG. 4 is a diagram showing an outer appearance of an operator group of the recording apparatus of the embodiment.

FIG. 5 is a diagram showing a recording state on a recording track for explaining the operation of the recording apparatus of the embodiment.

FIG. 6 is a flowchart of a routine that is executed when the recording apparatus of the embodiment is powered on.

FIG. 7 is a flowchart of a timer interrupt routine of the recording apparatus of the embodiment.

FIG. 8 is a flowchart of a REC mode routine (1/3) of the recording apparatus of the embodiment.

FIG. 9 is a flowchart of a REC mode routine (2/3) of the recording apparatus of the embodiment.

FIG. 10 is a flowchart of a REC mode routine (3/3) of the recording apparatus of the embodiment.

FIG. 11 is a flowchart of a PLAY mode routine (1/2) of the recording apparatus of the embodiment.

FIG. 12 is a flowchart of a PLAY mode routine (2/2) of the recording apparatus of the embodiment.

FIG. 13 is a diagram illustrating a recording state of recording tracks for explaining the recording apparatus of another embodiment of the present invention.

[Explanation of symbols]

 1 control unit (CPU) 2 operator group 3 sequencer 4 song data ROM 5 sound source unit 6 mixer 7 synchronization detection circuit 8 encoder 9 decoder 10 microphone 11 amplifier 30 video movie 31 recording device 32 earphone

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location H04N 5/7826 H04N 5/782 C

Claims (2)

[Claims] 1. A music simultaneous recording apparatus for controlling the recording of music played together with recorded video of a recording apparatus, comprising a performance means for automatically playing a music piece based on performance data of the music piece, and an instruction to start the performance to the performance means. And a recording position corresponding to an image being recorded at the time when the recording device generates a control signal representing an instruction to start playing a musical piece in response to the operation of the operator. Control signal transmitting means for transmitting the control signal to the recording device so as to record the control signal on the recording device, and at the time of recording, instructing the performance means to start playing in response to the operation of the operator, and recording the recording signal. First control means for controlling the performance of the performance means to stop in synchronization with the recording stop of the apparatus, and to restart the performance of the performance means from the stop position in synchronization with the recording start of the recording apparatus; , Depending on the recording device Music simultaneous recording apparatus for recording apparatus and a second control means controls to start playing of the playing means in accordance with the control signals read out with the image signal. 2. A music simultaneous recording device for controlling recording of music played together with recorded video of a recording device, wherein the playing device automatically plays a music piece based on performance data of the music piece, and the recording device is the playing means. Performance data for sequentially sending the performance data of the music being played by the performance means to the recording device so that the performance data of the music being played is recorded at a recording position corresponding to the image being recorded along with the performance. Sending means and control means for controlling the performance of the performance means to be stopped in synchronism with the recording stop of the recording apparatus and to restart the performance of the performance means from the stop position in synchronization with the recording start of the recording apparatus. And a music simultaneous recording device for a recording device equipped with.