JPS59107474A - Automatic designating device of music selection on tape recorder - Google Patents

Abstract

PURPOSE:To facilitate easy designation of music by reproducing successively the introduction parts after detecting the head of each music in a tape fast forward mode and at the same time detecting the music numbers to store a desired music number in a memory for designation of the music. CONSTITUTION:A signal showing the operation mode is supplied to a microcomputer 1, and the computer 1 detects the operation mode from the supplied signal. In the fast forward reproduction mode, an AND is obtained to the output (1) of a music interval detecting circuit 20 by an AND circuit 25. Then the mode is changed to reproduction, and the set time of reproduction for the introduction part is counted by a timer 26. Then the reproduction mode is changed over to the fast forward reproduction mode. In such a way, said both operation modes are changed over alternately to reproduce subcessively the introduction parts of each music. Then a music designating switch 18 is turned on for each desired music, and the desired music numbers are susccessively stored in a music selection memory 22. Thus the music is designated with an automatic music selection system.

Description

[Detailed Description of the Invention] This invention provides automatic music selection Pl! of a tape recorder! The song designation device in HQ (specifying several songs in advance and playing them accordingly) is +mL, and while fast forwarding to Chii, the intro part of the valley (hijinbu) is played faintly. At the same time, each track number is detected,
During this operation, when the intro part of the song you want to learn is played, press the switch to store the detected song number in the memory and specify the song (l').
Even if you don't know if there are F2O songs in the list, you can specify the song.

The conventional tape recorder's personal VJ song selection g1 cliff is a method of selecting a song by specifying the song number, so when specifying a song, Q-Technology has to write down in advance which track there is a song with 1"J. For this reason, it is fine if you want to select one song, but if you want to automatically select multiple songs, if you have a complete list of songs, it will be fine. This function has become completely top-notch.In addition, even if you know in advance which track 115J is included, when you select your own S song on a tape that is wrapped in the case (engineering, Cheap Record). Then, the song at that position will be counted as the +441st song, so the song +11i+
There was a drawback that even if a song was specified in the squirrel HC, the song that was specified would not be played.

This invention was made in view of the above-mentioned points.
'Even if you don't know what song is in track J,! ,
In addition, it is a tape recorder that allows you to easily specify the song even if the tape is wound at 1 in the middle! i! This is intended to provide a device for specifying 0 music selection.

According to this invention, when the beginning of the valley is detected while the tape is being fast-forwarded, the intro section is generated for a long time, and along with this, the number of each song is calculated, and during this movement, the intro section is generated. When the intro part of the desired song is played, by operating a switch, the detected song is stored in memory and the song designation is changed.

Hereinafter, embodiments of the present invention will be explained in detail with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the present invention, in which this automatic music selection designating device is configured to create music under program control by a microcomputer 1.

In FIG. 1, recording No. 16 is manually input from the line 2 and added to the a4 child of the source resource switch 3. A playback signal is obtained from the recording head 7 and is applied to the b terminal of the source selector switch 3 via the up 8. The source selection switch 3 is activated by the command of the microcomputer 1'D) during the automatic music selection operation.
Connected to the b terminal, the tape playback signal is sent to the line amplifier 4.
to line output 5 and pulsing circuit 17,
The pulse generator 17 (lineup 41J) also converts the received playback signal into /R pulse (C), digitizes it into sOI (S]#, and non-g section), and converts it into a playback signal. Distinguish between a curved part and a non-curved part [This is the q path. This pulsed 11 path 17 is, as shown in Figure 3,
It can be configured using the Mitsubishi Tuniso M51143L type IC19.

The automatic music selection music designation start switch 9 is a switch for starting the music designation operation for selecting one's own +i11 music.By turning on this switch, the tape recorder is switched to the operation mode for music designation by a command from the microcomputer 1. You can see chivalry.

Song specification switch 18c is a switch for specifying a song, and while the intro is being played softly, ll! When the song you want to play appears, turn it on to specify the song. In the microcomputer 1, the song number of the song whose intro is currently being played is detected based on the output signal VC of the /e pulse conversion circuit 17, and when the song designation switch 18 is turned on, the detected song number is detected. The song selection memory (see Figure 2) is then written.

The microcomputer 1 also drives various mechanisms 1 such as a motor, a power transmission unit for the motor, a pinch roller, and a head.

Mechanism 1] sends signals indicating its operating status, as well as
The number of pulses of the reel rotation detection signal is counted up/down by a microcomputer, converted into time, and the tape position is displayed on a linear counter 16.

FIG. 2 shows the internal configuration of the microcomputer 1. As shown in FIG. In FIG. 2, the inter-song supply circuit 2fJ is /R
This is a circuit for accurately determining a curved portion and an inter-track portion from the output signal of the loop conversion circuit 17. That is, the ξ nursing circuit 1
As shown in Figure 4+a+, the signal input to 7 may have interruptions in the sound even during the song section, or noise may occur between songs, so the output signal is as shown in Figure 4tb+. The sound will contain interruptions and noise. Therefore, when there is a change in the output 1g of the inter-track detection circuit 17, the inter-track detection circuit 20 switches the output signal if it continues for a certain period of time, so that the output signal shown in FIG. As shown in FIG. 1, it is possible to obtain a signal that accurately distinguishes between a music part and an inter-musical part without being affected by noise or sound interruptions.

The output signal of the song interval detection circuit is inputted to the song number 2/2], and is counted and amplified one by one at the falling edge of the signal (that is, at the start of the song interval), and the song number is detected.

The output of song number counter 2] is added to song selection memory z2,
When the song designation switch 18 is turned on, the song number detected at that time is stored in the song selection memory B.

- 10,000, a signal indicating an operating mode is input to the microcomputer 1. The microcomputer 1 detects the current operating mode from this signal strength and determines whether it is fast forward playback (
CUE ) state, the AND circuit performs an AND with the output s1t of the song interval detection circuit, and outputs the playback (PLA) state.
Y) Switch the operation mode to state. In addition, when the playback state is entered, the time set as the playback time of the intro portion (for example, about 8 seconds) is counted by a timer, and after the count is amplified, the state is switched to the fast-forward playback state. In this way, by alternately switching between the fast-forward playback state and the playback state, the intro parts of each person are played one after another, and when the song you want to listen to appears during the playback, press the song selection switch 18.
By turning on each time, the song numbers are sequentially stored in the music selection memory, and the music is specified in automatic music selection.

FIG. 5 shows the above-described song-specific creation with tape position as the horizontal axis. When the intro part of a song is being played, the song number of the playback signal and the count 1 of the song number counter 2j
Since the intro of the song you want to listen to appears, turning on the song fingering switch 18 will specify that song.

In addition, in the above explanation, 1. The microcomputer 1 was explained as switching from the fast-forward playback state to the playback state when the inter-song part is widened, but if this was the only operation, the inter-song part would be long. In this case, it takes some time before the intro part of the next song appears.

Microcomputer 1 shown in the flowchart of FIG.
The operation has been improved on this point so that even if the J part of song 1 is long, the intro part can be played back with a short waiting time. This is so that even when the H section of a song is detected, the playback is fast-forwarded, and when the beginning of the next song is detected, the playback is rewound a little and then played back. The flow shown in Figure 6 is a part of the overall program, and when the automatic song selection start switch 9 (Figure 1) is turned on, this flow starts functioning as a part of the scanning loop of the overall program. If there is a corresponding action during scanning, the corresponding action is executed during the first scan, and if the condition is met during the next scanning, the next action 1 is executed. However, there are 4 lines.

The song designation creation of own S song selection by 70- in FIG. 6 will be explained following jlo.

(1) First, when the automatic music selection designation start switch 9 is turned on while the operation mode of the tape recorder is in the playback state, an initial setting is performed and the count value of the music number counter 2J becomes 1. , the count value of the internal counter is set to OK, the standby flag (engine IQI) is set, and the initial set flag is set to slg. This is to prevent incorrect detection of song numbers due to noise or interruptions in sound.
When the output signal of the pulse generator 17 changes from s1# or %QIi or IQj to 111,
If you count the number of songs during the Samurai 猀 and complete the preset 1st shift, you will be able to determine with certainty that it is the boundary between the song part and the inter-piece part. Also! The standby flag is busy as mentioned above, and the output of the solus conversion circuit 17 is % Q I→” 1
．． ', Ah Ruiha' 1. '-p' 0 #) The state of waiting for the second change to occur after confirming the first change is 1g, which is expressed as 1]l.

(2) Since it is in the playback state, it branches to the branch. Here, the playback state is maintained by counting the time (for example, about 8 seconds) set in advance in the timer % as the playback time of the intro portion. At this time, if the song designation switch is turned on, that song is stored as song number 1 in the first location of the song selection memories.

(When the 31 timer 26 counts up at f+a'E, it is reset and put into a fast-forward playback state.

(4) After entering the fast-forward playback state, branch to branch ■. Here, the standby flag is initially 101, and the branch is branched to branch (2). In branch ■, when the output of the pulse generator 17 falls to %OIK, the internal color converter is activated by the count amplifier (here, 1 per scanning).
When it starts adding up and counts up the initial value, it determines that it is indeed in the inter-song section, resets the count value, and sets the stun flag (sets it to 111). ), nozzle formation circuit that occurs in arrows 17
Wait for the output to rise to %11, that is, enter the standby state (S operation mode maintains the fast forward playback state)
.

(5) Enter the next song section and the standby flag is set to SII.
In this case, branching from 组 to branch ■. here,
When the output of the pulsing circuit 17 rises to slg, the internal counter starts counting up to (*) in the same way as described above, and when it has counted up the set value, it will soon enter the music section. 1, and then reset the count 11, branch to K, branch ■, lower the stun flag (set it to 101), and then reverse the playback by rewinding.

(6) When you switch to the rewind playback state, there is a branch from behind.■
branch into At this time, the standby flag has been reset, so it branches to branch ■, and when the internal counter confirms that it is in the song section, it resets the count value, branches to branch ■, and sects the standby flag. .

(7) Once the standby flag is set, the next step is to branch to branch ■, and when the internal counter confirms that it is in the listening mode, the count 1 shift is reset, and the branch is branched to branch ■. , resets the standby flag, and increments the track number counter 2J by one.

(8) This is the first time that there is a second song, it is confirmed, the intro is played as a playback state, and from the second, the program returns to branch ■. However, no initial set occurs.

By repeating the above operation, each intro is generated one after another. During this operation, when the song designation switch 18 is turned on, the count 1 of the song number counter 2 is written into the song selection memory.

When all the operations for the automatic music selection song 4d are completed, if the automatic music selection designation switch 9 is turned off, the initial set flag is set to %Or, and the flow part described above is all performed. , 6, if passed, normal operation resumes.

1\ Figure 7 shows the above operation with the tape position taken as the horizontal axis. In FIG. 7, portions corresponding to the operations (1) to (8) above are given the same reference numerals.

In addition, to play the song specified in the above method, just as with conventional program playback devices, playback is performed at the specified song number, and other parts can be skipped by fast forwarding or rewinding. .

As explained above, according to the present invention, the intro part of each episode is played one after another, the number of each song is calculated, and when the intro part of the song you want to listen to appears, the above-mentioned detection is performed based on the switch operation pressure. Since the song specification is done so that the song number that is being played is written to memory,
Even if it is not known in advance whether a certain song is available on the tape, or even in situations where automatic song selection is performed from a partially wound state, the song can be easily specified.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing an example of the internal structure of the microcomputer 1 shown in FIG. 1, and FIG. 3 is a block diagram showing an example of the internal structure of the microcomputer 1 shown in FIG. 1.
FIG. 4 is a waveform diagram showing the operation of the e-norming circuit 17 and the music generation circuit shown in FIG. 2, and FIG.
The figure is an explanatory diagram of the operation of the circuit in Figure 2, Figure 6 is a flowchart showing the operation of the microcomputer 1 that shortens the waiting time for intro part playback, and Figure 7 is a time chart of the operation of Figure 6. be. 1...Microcomputer, 2...Line human power,
3... Source selection switch, 5... Line output, 6
...recording/reproducing head, 7...magnetic tape, 9...auto!
g Music selection song designation start switch, 17..., e Luz conversion circuit, ■... Song designation switch, 21... Song number counter,
〃...Song selection memory.

Claims (1)

[Claims] The 10th stage plays the intro part between each song while fast forwarding the tape, the + stage detects the track number of the song even during this operation, the Danuri switch for song designation, and the switch is turned on. Cheap Record's automatic music selection system is equipped with a memory + stage that stores the detected song number when the song is detected.