JPS6160440B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for synthesizing speech and signal tones using a contact magnetic transfer method. To be more specific, the present invention involves recording audio or signal sounds recorded on a magnetic tape, magnetic card, or the like intermittently or continuously onto another magnetic recording medium such as a magnetic tape or a magnetic drum by magnetic transfer; The present invention relates to a method and apparatus for continuously reproducing transcribed sounds and synthesizing voices and signal tones.

Conventional methods for the same purpose include methods using pure electronic equipment, methods using magnetic tape recorders, methods for editing recorded tapes, and methods for mechanically selecting and synthesizing signal tones. As shown in Figure 1, the pure electronic method generates the necessary number of waveform signals from a basic waveform generator, synthesizes the waveforms in a matrix 3 based on program input from an input device 2, and converts them into audio using an amplifier 4 and a speaker 5. do.
In the method using a magnetic tape recorder, as shown in FIG. 2, a signal from a sound source 6 is applied to a recording head 7, and a magnetic tape 10 is run along the surface of the head 7.
The tape 10 is driven when the pinch roller comes into pressure contact with the capstan 8, and this pressure contact is performed intermittently to selectively record necessary signals in the sound source onto the magnetic tape. An example of the editing method is shown in FIG. That is, for example, the A signal portion and the B signal portion are cut out from a magnetic tape (a in the drawing), and then connected with tape as shown in the drawing b. Further, in the method of mechanically selecting signals, as shown in FIG. 4, signals from a plurality of signal generators 11 are selected by a switch device 12, and amplified and reproduced by an amplifier 13 and a speaker 14.

Purely electronic equipment uses a combination of basic waveforms to create speech sounds, and then synthesizes a single word from the combination of these sounds, but it is extremely complex and expensive. Furthermore, in the method using a tape recorder, the frequency components fluctuate at the rising edge of the tape run, making it difficult to record and reproduce short sounds or continuous signal sounds frame by frame to synthesize a single word, words, etc. Improving the starting characteristics of tape recorders requires the use of very expensive equipment.
Furthermore, with the tape editing method, synthesizing short sounds is extremely time consuming and laborious. Furthermore, with the method of continuously generating signal tones using an oscillator, selecting the necessary signal tones mechanically or electrically, and synthesizing music, etc., it is not possible to synthesize speech and create words, and the equipment is relatively It becomes expensive.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method and apparatus for synthesizing words, words, music, etc., using a simple device, without changing the frequency components or waveforms of short continuous sounds or voices.

An object of the present invention is to provide a method and apparatus for synthesizing the above properties by magnetic transfer or magnetic transposition principles using a magnetic master medium.

Briefly, the present invention involves preparing a large number of master media (having higher retention strength than ordinary recording tapes) on which different basic sounds, musical tones, etc. are recorded, passing them through a magnetic transfer device in a desired order, and Under the influence of a magnetic field, the contents of the master medium are transferred to a piece of magnetic tape (having a lower coercive force than the master medium) in close contact with it. The magnetic tape thereby records words or music in the form of synthesized speech or musical tones.

As described above, according to the present invention, the necessary composition can be achieved simply by using a combination of an ordinary magnetic transfer device and a large number of master media (or one or several master media having a large number of recording areas). Therefore, the synthesis work is simple and the equipment is simple and inexpensive. Furthermore, since the master medium and the magnetic tape are in close contact with each other and receive the transfer magnetic field, the transposition is performed regardless of the feed speed at the time of transposition, and the frequency and waveform of the master medium are faithfully transferred to the magnetic tape in any case. There are benefits. Further, since the master medium can be used repeatedly, there is an advantage that one set of master medium can be used for various synthesis purposes. Other advantages of the invention will become apparent from the description below.

Referring to FIG. 5, an apparatus for carrying out the method of the present invention is shown. Although the magnetic transfer device of the device of the present invention may be a conventional one, the feature of the device of the present invention is that the magnetic transfer device is combined with a set of master media each recording necessary basic signals; and the magnetic tape is driven only when the master medium is inserted to achieve precise transfer. Referring to FIG. 5, reference numeral 20 denotes a synthesizing apparatus according to an embodiment of the present invention, in which a guide roller 21 is provided on a base frame, and an endless magnetic tape 22 is looped through the guide roller 21. Incidentally, the magnetic tape 22 is reel-to-reel.
A reel-type one may also be used. A magnetic transfer section is arranged at the front of the base frame, and a transfer magnetic field generating device 25 and an erasing head 26 are fixed to a pivotable rod 24 supported by a support shaft 23. Reference numeral 27 denotes a driving roller which is a rotating cylinder and is driven in the running direction (arrow) of the magnetic tape 22. A pinch roller 28, which is an idle roller, is provided opposite to the cylinder 27, and the distance between the cylinder 27 and the pinch roller 28 is such that the magnetic tape inserted therebetween and the magnetic master medium (card 29 in this example) to be inserted are arranged in the cylinder 27. It is slightly narrower than the total thickness of . Note that the driving force may be applied to the roller 28 instead of the cylinder 27.

In this case, the relationship between the drive roller and the idler roller is opposite to that in the above case. Due to the above relationship, when the master card 29 is inserted in the direction of the arrow, a driving relationship is created between the cylinder 27 and the pinch roller 28 via the magnetic tape 22 and the card 29, so the tape 22 and the card 29 are integrated. The recorded contents of the master card 29 are transferred to the magnetic tape under the influence of the transfer magnetic field, and the card 29
When the magnetic tape passes between the pinch roller 28 and the cylinder 27, the magnetic tape feed driving force is automatically released. Since the magnetic tape 22 and the master card 29 advance in close contact with each other, even if there is uneven rotation of the rotating cylinder 27 during magnetic transfer, the length of the master card 29 and the corresponding transfer recording length on the magnetic tape are always equal, and the frequency There is no risk of deviation or waveform deviation.

Next, to explain the present invention in detail with reference to FIG. 6, 29 ₁ , 29 ₂ , and 29 ₃ are Master Cards, which have the characters "A", "Sa", and "Hi" printed on their surfaces, respectively. The audio signals of ``a'', ``sa'', and ``hi'' are recorded on each magnetic track 30, respectively.
To synthesize the voice of ``Asahi'' from these three cards, first place the card ₂₉₁ in the device shown in Figure 5 to perform magnetic transfer, then the magnetic tape 22 moves forward only while the card ₂₉₁ is in the device. and accept the record on the card. When the cards 29 ₂ and 29 ₃ are successively placed in the device, a subsequent recording area called "Asahi" is formed on the magnetic tape 22 as shown in FIG. Therefore, if this is later run continuously and reproduced, the word "Asahi" will be reproduced.

Figure 7 shows an application of the same idea to language teaching materials. Word master cards for nouns, verbs, adjectives, etc. are created, and these words can be combined and transferred onto magnetic tape to create sentences. For example, in the example shown in Figure 7, four sentences can be created from a combination of five Master Cards.

FIG. 8 shows an example in which the present invention is applied to music synthesis. One musical scale is printed on each master card 29, and a musical tone corresponding to the displayed musical scale is recorded on the magnetic track 30. Also, the length of the card is made proportional to the length of the musical tone. If master cards are selected in any order according to the editor's intention and inserted into the device shown in FIG. 5 in order, and the scales on the cards are transferred to the magnetic tape 22, the corresponding recording areas will be created as shown in FIG. 8. A magnetic tape 22 is obtained. It is clear that the length of each unit recording area on a magnetic tape is always constant even if there is unevenness in the drive system during transfer, and as long as the running speed of the magnetic tape is constant during playback, faithful playback sound can be obtained. It is clear that this can be obtained. In other words, no matter how uneven the running is during transcription, or even if there is a short continuous sound, as long as there is no slip between the magnetic tape and the Master Card, the frequency components of the sound transferred onto the tape will not change at all, and the beginning of each note will change. Music can be played in an accurate scale from beginning to end.

In the embodiments described above, the magnetic transfer method was used to transfer the recording and synthesize audio, etc., but the thermomagnetic transfer method may be used instead of the magnetic transfer method. In this case as well, there is almost no need to change the above device; for example, the magnetic field generator 25 may be omitted and one or both of the pinch roller 28 and the cylinder 27 may be configured as a roller with a built-in heater. Alternatively, instead of the pinch roller 28 and the cylinder 27, an electrode is applied to the outer periphery of an insulating roll, and a roll is formed with silicone rubber applied thereon, and a high-frequency electric field generator is connected between both electrodes. In addition, heat for transfer may be generated.

Although the above embodiments have all been described with respect to applications of analog recording mainly for sound, the present invention can also be applied to digital recording.
Record the assembly order for each process on a card,
It is easy to program all processes by sequentially transferring them to tape, or change the work order by replacing cards. Once a card is recorded, it can be used many times with that program. Storage is also convenient. Even in this case, running unevenness during tape recording does not become a problem, so even in FM recording where information of "1" and "0" is recorded and played back at a constant wavelength, the information stored in the Master Card remains the same. can be recorded on tape.

As explained above, according to the present invention, signals are transferred from the master medium to the copy medium (magnetic tape, etc.) in a one-to-one correspondence through transcription, and are synthesized, so even short continuous sounds have problems with rising. It is possible to synthesize the frequency components without changing them at all.
Furthermore, the present invention can freely synthesize voices, musical tones, or other recordings using a plurality of master media having a single recording area or a master medium having a plurality of recording areas to create a series of words, music, or Programs can be configured. The present invention allows a conventional device to be easily designed and provided with the necessary functions by making some modifications to the device and is inexpensive. Recorded waveforms (timbres) can be copied as they are, so you can freely synthesize words using the voices of men, women, adults, children, etc. In music, you can master violin sounds, flute sounds, organ sounds, etc. By recording music on a medium, even people who do not have an instrument, can barely read sheet music, or cannot play an instrument at all can easily synthesize (compose) music using the tones of their favorite instruments and listen to it. Also, once a master medium is recorded, it can be used many times (semi-permanently).
Moreover, if the master medium is configured in the form of a card or sheet, storage (filing) is convenient, and if the contents are displayed on the surface, combinations of words, words, etc. can be very conveniently synthesized.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a conventional speech synthesis method, Fig. 2 is an explanatory diagram showing another conventional method, Fig. 3 is an explanatory diagram showing another conventional method, and Fig. 4 is an explanatory diagram showing another conventional method. 5 is a front view showing the method and apparatus of the present invention, FIG. 6 is an explanatory diagram showing the matter card and speech synthesis according to the present invention, and FIG. 7 is an explanation showing another example of the present invention. 8 are explanatory diagrams showing still another example of the present invention. The main numbers in the diagram are as follows. 20: Magnetic transfer device, 22: Magnetic tape, 2
5: Transfer magnetic field generator, 27: Cylinder, 28: Pinch roller, 29: Master medium.

Claims (1)

[Claims] 1. In a device 20 that synthesizes audio or signals by transferring recordings of a plurality of magnetic master media 29 on which audio or signal sounds are recorded to an unrecorded magnetic recording medium 22 by magnetic transfer or thermomagnetic transcription, a magnetic transfer magnetic field is used. or means 25, 45 for generating thermomagnetic transfer heat, a drive roller (27
or 28), comprising an idler roller (28 or 27) provided opposite to the drive roller, and a power source for driving the drive roller, wherein both the rollers 2
7 and 28 are configured to be slightly narrower than the total thickness of both the media.