DE1807423A1 - Sound recording and reproducing apparatus for teaching purposes, in particular language teaching purposes - Google Patents

Description

Erioh Josef Ley Fordhausen, November 6, 1968

liordhauaen Ί 807423

Pinkenstrasse 10

Sound recording and reproducing device for teaching purposes, in particular speech listening purposes

The invention relates to a sound recording and reproducing device for teaching, in particular language teaching purposes, with magnetic sound heads for recording and / or playing back two or more sound tracks lying parallel to one another on moving from a magnetic tape, in which at least one sound track is the teaching track and of which the Spreoh models are presented to the student in any length of time »The student repeats these speech models, records them at the same time on the student track, he hears the speech model of the teaching track again, then his speaking performance and then repeats the speech model WITHOUT ANY OPERATION ON THE DEVICE ·» · HAVE TO LEAD . With this sound recording and playback device, the speech models only have to be present once on the teaching track and the empty spaces previously required on the teaching track are completely eliminated. As a result, the program copy times are several times shorter. This time gain is also available to the student in the language laboratory.

All sound recording and playback devices known to date and used in language teaching have the disadvantage that the recording of the student speaking performance on the student lane of the teaching tape with the speaking model on the teaching lane only a comparison can then be made if there are gaps between the speech models on the teaching track that are in time correspond to at least the speaking duration of the speaking model. The gaps between the speech models on the teaching

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track are in the audio recording and playback devices for teaching purposes, which are through a loop of the tape, according to the Ley system, immediately reproduce the student speech performance between the recording and playback head of the student track, twice as long. If the speaking model is to be presented to the student several times for exercise, it must with the appropriate gaps, be present several times on the teaching track or the student must use the teaching tape rewind accordingly often, in the right place

^ Switch to playback and then to recording.

For devices with a loop between record and replay transmission head of the student lane, the required switching operations on the device are reduced, but the copying times are greatly reduced long, with devices without a loop, the necessary switching operations are so distracting that the student does not comes to the active correction of his oprech performance. The distraction of the student from their actual activity through the necessary holding processes on the device and the dead times when copying the teaching programs, especially in the

W language laboratory, are major disadvantages of the sound recording and playback devices known to date for teaching purposes.

These disadvantages are eliminated by the subject matter of the invention. The invention consists in that the magnetic sound device for teaching, in particular language teaching purposes, is equipped with an electronic and electro-mechanical control of the tape run, the tape heads and amplifiers that, with a one-time specification of an arbitrarily long speaking model on the teaching track, by using the until today unused tape part of the students

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track below or above the speaking model, the student has the opportunity to 1. hear the speech model, 2. repeat and record at the same time, 3. hear the speech model again, 4. their own recording and 5. at the end again the speech model without having to perform an operating function on the device . The speech model required only once on the teaching volume for the five learning phases, which can be repeated as often as desired without having to perform an operating function on the device, and the empty spaces between the speech models that are no longer necessary due to the invention result in a 4 to 6 when copying the teaching volume -fold time savings compared to the language teaching devices known to this day, in which, for successful learning, the speech model with the necessary gaps must be available several times on the teaching tape. In a further development of the invention, the speech model is reproduced and the student speech performance is recorded on the same tape in contrast to the devices known to date, in which separate tapes are used to reduce the number of operations on the device, which require individual drive elements, sound heads and amplifiers and thus are more complex to manufacture and more susceptible to disruptions in operation.

In a further embodiment of the invention, due to the several times shorter teaching tapes the geometric dimensions are kept so small that such a device, for example, when used in the Spraciilabor, no

needs to be more at Sehülerplatz, but rather light than Push-in device with plug connection in the teacher's console

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can be accommodated.

In the drawings, exemplary embodiments of the invention are shown, namely sheet 1 shows the electromechanical circuit diagram of the device, the structure of the amplifiers not being shown and the power supply with alternating and direct current from a power supply unit (not shown). Sheet 2, Fig. 1 shows the functional diagram of the electromechanical elements and the bandyer run in the copy of the teaching program on the teaching track of the tape, in the five learning phases with a speech model of the teaching tape:. . ,

1. Reproduction of the speech model

2. Recording of the student speaking performance

3. Reproduction of the speech model

4. Reproduction of the student's speaking performance

5. Reproduction of the speech model.

Sheet 2, Fig. 2 shows the electromechanical program switch that registers the duration of the 2nd learning phase, recording of the student speech performance, the 3rd learning phase, reproduction of the speech model, timed and the switching pulse for the 4th learning phase, reproduction of the student speech performance , delivers.

In particular, on page 1 shows the circuit diagram that interaction between the individual elements in the .fünf "learning phases with a single Spreciivorbild of Lehrton-r ribbon 10. It contains in addition to the ER for the _invention;.. Ford variable elements for better understanding and the

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for a remotely controllable magnetic recorder Elements. The stick ehalt it is made possible by the actuation in the direction 19 and back 'Start' and 'Stop' positions, with a lifting magnet the tape reel brake and a lifting magnet 17 the press roller of the lonband drive operated. By actuating the stick switch 18 in direction 20, the position 'Fast rewind' and in direction 21 the position 'Fast forward the tape is established. Spool drive elements are not shown - they are considered to be known.

The teaching tape 10 with the speech model on the teaching track, in the example upper track, after switching on the stick switch 18 moves in the direction 19 from left to right according to the arrow. A combined recording-playback sound head on the tape 10 is connected to the playback amplifier 11 via relays 1 and 2 and enables the speech model to be heard with the headphones 14.

If, after hearing the speaking model, the student answers with any short word, for example with yes, oui or yes, this triggers the 2nd learning phase , recording of the student's speaking performance. The word spoken by the student in the microphone 15 speaks to the relay 3 via the recording amplifier 12 and the modulation amplifier 13, which is prevented from dropping immediately by a timer in the modulation amplifier. Relay 3 switches relay 4

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and relay 1 on via a timer. Relay 4 switches the belt drive motor 9 and the program switch 6 to or on. The tape 10 now runs to the left, the program switch 6 closes, among other things, a working contact and switches on relay 2 with an unmarked recording control lamp. Relay 2 switches on the operating voltage of the output stages of the recording amplifier 12, the recording amplifier 12 with the erase generator on the recording or erasing head of the student track, in the example the lower track of the tape 10, fe and the playback head of the teaching track on the modulation amplifier 13. The backward running Speech prototype generates a voltage parallel to the microphone 15, which maintains the working state of relay 3. If the pupil has finished speaking and the speech model has also expired, relay 3 and thus relay 1, 2 and 4 drop after the time determined by the timing element in modulation amplifier 13. The tape drive motor 9 and the program switch 6 change the direction of rotation and the 3rd learning phase , reproduction of the speech model, begins.

When changing the direction of rotation of the program switch a 6, an AC relay 25 is actuated at the same time, which interrupts the power supply from the modulation amplifier 13. The tape 10 runs to the right, the student hears from the teaching track via the playback head, relay and 2 and the playback amplifier 11 with the headphones | as a speech model. During the 3rd learning phase, over a charging current limit non-resistance of the capacitor loaded, an operation deg high-speed is blocked

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and the program switch 6 runs back to its starting position. The 4th learning phase , reproduction of the) student speaking performance, is initiated.

When the program ehalt 6 has reached its starting position, it switches off its power and the capacitor 23 is connected to relay 5 via relays 2 and 1. Due to the discharge current, relay 5 switches over drive motor 9, interrupts the mass point of relay 4 and switches relay 1 on via a timer. At the same time, the holding current connection to relay 3 is established. Relay 1 switches the playback head of the student track to the playback amplifier 11, the playback head of the teaching track to the modulation amplifier 13. The student hears his speech performance via the headphones 14 and the backward-running speech model generates a voltage via the modulation amplifier 13, which switches on relay 3 and thus the holding circuit for relay 5 closes. If the speech model has expired xini and the recording of the pupil's speech performance located in the same tape area, relay 3 drops out, and with it relays 5 and 1. Jie 5th learning phase , listening to an oprvoiivorbildee, begins.

The tape drive motor is switched over, the tape runs to the right again and the student hears the playback amplifier from the teaching track via relays 1 and 2 11 with the headphones 14 - the speech model. Is the student with his speaking performance at the

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immediately satisfied with the speech model, that's how he speaks no more and the next model is presented to him. If he is not satisfied with his speaking performance, So after the 5th learning phase, hearing the speaking model, he speaks again and repeats learning phases 2 to 5 like before.

Sheet 2, Fig. 1 shows the puncture diagram, which is used for a better understanding of the operating states of the elements drawn in the circuit diagram on sheet 1 and the direction of travel of the tape in the five learning phases and the copy of the teaching program on the teaching track.

Sheet 2, ffig. 2 ; The program switch 6 consists of a synchronous motor with a reduction gear. switchable to clockwise and counterclockwise rotation and carries the lever 24, which is provided with a slip clutch and which moves between two stops and, depending on the reduction of the gear, requires a corresponding time for the rotary movement from stop to stop. The reduction gear is selected so that the duration of the longest speech model is shorter than the duration of the rotary movement of the lever 24 between the two stops. In its stop position, the lever 24 actuates a spring switch set, which carries out the switching required for learning phases 2 and 3 and initiates learning phase 4, for each duration of the speech model within the maximum time set for a speech model.

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Claims (5)

Claims 1. Tonaufzeiohnungs- and playback device for teaching purposes, in particular language teaching purposes, characterized in that the magnetic sound heads are arranged so that the recording of the student speech performance on the student track in the opposite direction to the teaching track takes place below or above the speech model of the teaching track and that by the electronic and electromechanical ^ control of the tape, the sound heads and the amplifier the pupil can carry out the following five learning phases as often as desired with a Spreohvprbild only once on the teaching track, without having to operate the device : 1. Listening to the speaking model from the teaching track. 2. Record student speaking performance in the student lane. 3. Listening to the speaking model from the teaching track. 4. Hearing the student performance from the student track. 5. Hear the Spreoh model from the teaching track? 2. Sound recording and playback device according to claim 1, characterized in that the relay 3 responds by a short word from the student, after the 1st learning phase, via the microphone 15, amplifier 12 and 13 and thereby automatically the 2nd learning phase, Recording of the student's speech performance, established and maintained by the simultaneous scanning of the backward running speech model of the teaching track until the end of the 2 · learning phase. - 10 - 009823/0763 3. Sound recording and reproducing device according to claim. 1, characterized in that the program switch (6) DIB TIME DURATION of the 2nd learner phase, 'records the student speech performance ¹ , the 3rd learning phase,' listening to the speech model ·, timed and the start impulse for the 4 ·. learning phase, 'hearing the student's speaking performance ¹ , delivers, Sound recording and reproducing device according to Claim 1, characterized in that the five learning phases only t - ~ ■ "" ■ * "~ - ■ -" ————————— require a speaking role model on the teaching track and that the individual learning phases are carried out on the same teaching tape. 5. sound recording and playback device according to claim 1 and 3, characterized in that the program switch (6} after the 3rd learning phase of the charged capacitor (23) by its discharge through relay (5) the 4th learning phase, "listening to the Face-to-face speaker power ¹ , is triggered. For this purpose drawing sheet 1 and drawing sheet 2 . 0098 2 3/0763 . "'' ¹ flat ■ - ■"'■■■■ ■: »» (I! »!;!';» ' ¹ ■■■,'»ιι;: Blank