CN2066178U - Language learning recording device - Google Patents

Abstract

A recording device for language learning has the functions of helping memory and correcting pronunciation. Its language learning function is superior to that of ordinary electronic memory aid or pronunciation corrector, and its cost is lower than that of recorder with speech synthesizer. The utility model is characterized in that: there is a special recording circuit for language learning recording. The said record reproducing device includes a reproducing circuit, an erasing and recording magnetic head connected to the output end of special record circuit for erasing the original record and recording the new record, and a reproducing magnetic head connected to the input end of reproducing circuit for picking up the new record.

Description

Language studying record device

The utility model proposes a kind of language learning recording device.

The principle of work and power of the present utility model is according to being: the sound-track engraving apparatus that function of language learning is arranged of charged sublanguage compositor and electric language learning device (or pronunciation correction device, mnemonic device).

When the sound-track engraving apparatus of charged sublanguage compositor (or processor) is in the language learning state, utilize voice synthesizer playback learner's pronunciation, make the learner repeatedly hear the sound that is phonetically alike with oneself, thereby but enhance memory is proofreaied and correct pronunciation.This apparatus features is simple to operate, and its shortcoming is that price is very expensive, and tonequality is bad, the circuit complexity.

The electric language learning device or make pronunciation correction device or mnemonic device directly learner's pronunciation be picked up amplification after, playback in learner's ear has certain enhance memory and proofreaies and correct the function of pronunciation.Though its circuit is simple, because playback produces simultaneously with pronunciation and disappear, thereby effectiveness is not high.

Task of the present utility model is to propose a kind of language learning recording device, overcomes the language learning sound-track engraving apparatus cost height of charged sublanguage compositor, the complicated and not high shortcoming of electronics mnemonic device effectiveness of circuit.

The utility model realizes that the method for above-mentioned task and principle are: main by a special recording circuit and the playback circuitry (1) that common playback circuit is formed, by an erasure simultaneously record again smear record head (3) the record of learner's pronunciation on tape (recording is originally erased simultaneously) when then tape is by playback head (2) signal picked after, feed back to learner's perception through oversampling circuit, thereby reach the purpose of enhance memory and correction pronunciation.

Further specify technical characterictic of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is a kind of language learning recording device schematic block circuit diagram that the utility model proposes.(1) be the playback circuitry of mainly being made up of special recording circuit and common playback circuit, (2) be playback head, (3) be the while erasure record again smear record head, (4) are microphone, (5) are player, (6) are alignment circuit, (7) are power supply.

With reference to Fig. 1, after learner's pronunciation signal is entered special recording circuit in the playback circuitry (1) and is amplified by microphone (4), record head (3) is smeared in supply, (3) former recording is erased, simultaneously the pronunciation signal recorded on tape, it is picked to record signal when tape continues motion process playback head (2).After amplifying, playback circuit in circuit (1), make the learner repeat to hear the reader of oneself by player (5) pronunciation.Thereby reach enhance memory and proofread and correct the purpose of pronunciation, the learner can change motor speed by alignment circuit (6), thereby changes tape speed, to obtain required playback time-delay.Alignment circuit (6) is with fixed-speed electronic circuit's principle is similar usually, and its difference only is to have on (6) element for learner's speed governing.

Smear record head (3) and can select the general preferably eraser of recording effect for use, or erasure effect magnetic recording head preferably, or use special-purpose magnetic head or the combined head of taking into account erasure and recording.

Fig. 2 and Fig. 3 are the designed combined magnetic header structure synoptic diagram of the utility model, and a passage has only drawn.Even laminated type, the combined type or all-in-one-piece of can be of all magnetic cores.(1) is the erasure magnetic core among Fig. 2.(2) and (3) be the recording magnetic core, (4) be the erasure coil, (5) are the recording coil, (1) be permanent magnetism erasure part among Fig. 3, for recording magnetic core, (4) are the coil of recording (2) and (2).

The principle of now smearing record head illustrates.

Fig. 2, combined type shown in Figure 3 is smeared smearing of record head, and the record principle is in fact respectively the principle of existing eraser and magnetic recording head, so do not narrate.Its characteristics are combined eraser and record magnetic recording head or combine exactly, certain this combination or in conjunction with being not limited to illustrated case, and when using this class magnetic head, smearing and record two parts should have separately current source or magnetic source separately.

Fig. 6 smears the structure of record head and the structural similarity of general magnetic recording head and eraser, is not limited to illustrated case.This record head of smearing is mainly that with the difference of general magnetic recording head the gap is different, for different tapes different best clearance scopes is arranged.In general, the head gap is for tape of the same race, and it is bigger than magnetic recording head to smear the record head gap, littler than eraser, can look after erasure and recording effect like this.The record effect of smearing of this magnetic head is such: when making the erasure magnetic field of smearing the record head gap reach the effect of energy erasure, see Fig. 7 head gap magnetic field magnetic line, magnetic field can be divided into three districts according to actual conditions, the A district, B district and C district (boundary in this each district is just for having a talk about bright problem qualitatively), magnetic field, A district does not reach erasure intensity, magnetic field, B district reaches erasure intensity, the C district is undebatable, obviously the A district exists forever, just because of there is the A district, so when adding recorded audio signals (a certain intensity) constantly together on the magnetic head coil, gap location A district promptly has the erasure of the erasure effect of not reaching and the stack magnetic field of recorded audio signals, A district scope is unstable at this moment or make A district B distinguish boundary's instability, but because tape in the magnetic hysteresis of motion and tape magnetosphere, just can be noted signal on tape.

Obviously the above has comprised the multichannel recording technology.

Advantage of the present utility model has: 1. effect is better than directly discharging sub-mnemonic device or pronunciation correction device.2. tonequality is better than the electonic speech compositor, and cost is lower than the sound-track engraving apparatus of charged sublanguage compositor.3 can utilize record, the production of cassette player production line, need not do cataclysm.

A reasonable embodiment is as follows:

Playback circuits etc. adopt the M2511 of Sanyo circuit (see figure 8) and accessory thereof, correspondingly on it will be called " former " key element usually.For the purpose of understanding, only be that the present record head (3) of smearing draws with former eraser, see Fig. 4.

(1) be common recording circuit or an amplifier, (1) and (2) forms special recording circuit together.C is the signal input part of (1), is connected on the signal input line of microphone socket of primary circuit.D connects former power supply+7.5V end.

(2) be audio-frequency transformer (AFT).Its effect is sound signal and direct-current erase electric current to be added to simultaneously smear on the record head on (3).

(3) for the primary circuit eraser just present smear record head.Its a, b are the primary circuit lead-in wire and do not change, and what b connect is former recording playback changeover contact.

(4) be the two switches of putting of a double-pole, whether control special recording circuit work by (4).

(5) be speed-regulating potentiometer.Because the effect of (5) makes the primary electron speed-stabilizing circuit become the adjustable speed fixed-speed electronic circuit.The speed governing semi-fixed resistance of e, f two lead-in wires and primary electron speed-stabilizing circuit also connects or replaces it.

Press playback button, the outer microphone of (4) insertion machine that closes a switch gets final product work.Switch (4) disconnects, and the function of this device is identical with M2511.

Fig. 5 is the another kind of form of last example.(3) smear record head for special use.Use resistance (2) and circuit (1) to form special recording circuit herein.

Fig. 8 is the M2511 of a Sanyo circuit diagram.A, b, c, the d of mark on it, e, f each point are corresponding to the explanation of Fig. 4.

The foregoing description obviously is applicable to other similar circuit.When using combination to smear record head, circuit is done change slightly and is got final product.

Claims (5)

1, a kind of language learning recording device, it is characterized in that: a special recording circuit that is used for language learning recording usefulness is arranged, a playback circuit is arranged, have one be coupled to special recording circuit output terminal can erase and record the record head of smearing of going up new recording to former recording, the playback head that will newly record and pick up when smearing record head work that is coupled to the playback circuit input end is arranged.

2, by the described device of claim 1, it is characterized in that: have an on-off circuit whether to control special recording circuit work, have a recording playback change-over circuit to make playback circuit can doublely do the major part of common recording circuit, playback head is double does common magnetic recording head, smears the double eraser of doing of record head.

3, by claim 1 or 2 described devices, it is characterized in that: the circuit that can regulate motor speed is arranged, regulate the time difference of recording and playback for the user.

4, by claim 1 or 2 described devices, it is characterized in that: smearing record head is combined type, and erasure coil and recording coil are arranged on it, also has erasure gap and recording gap.

5, by claim 1 or 2 described devices, it is characterized in that: smearing record head is combined type,

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