CN201886774U - Digital transcriber of magnetic tape for teaching purpose - Google Patents
Digital transcriber of magnetic tape for teaching purpose Download PDFInfo
- Publication number
- CN201886774U CN201886774U CN2010206984105U CN201020698410U CN201886774U CN 201886774 U CN201886774 U CN 201886774U CN 2010206984105 U CN2010206984105 U CN 2010206984105U CN 201020698410 U CN201020698410 U CN 201020698410U CN 201886774 U CN201886774 U CN 201886774U
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- Prior art keywords
- digital
- analog
- tape
- digital converter
- magnetic tape
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a digital transcriber of a magnetic tape for teaching purpose, which belongs to phonetic teaching equipment. The digital transcriber is characterized by comprising a card-type magnetic tape playback device, an analog-to-digital converter, a microprocessor and a memory which are in sequential connection. Compared with the prior art, the digital transcriber of the magnetic tape for teaching purpose has the characteristics of capability of being divorced from a computer, good transcribed tone quality and editable tone frequency.
Description
[technical field]
The utility model relates to a kind of phonetic teaching equipment, particularly a kind of tape is carried out teaching that number transcribes with the digital omnitape of tape.
[background technology]
Along with the progress of science and technology, magnetic tape record/play sound technology is progressively eliminated by the digital sound recording technology.But a lot of teaching recording materials in cartridge epoch but are of great value, for example in Foreign Language Teacher's hand of at present a lot of language teaching mechanisms, also have a large amount of cassette foreign language tapes to transcribe and to preserve.But As time goes on, make moist, be subjected to magnetic, fall irresistible reason such as magnetic, even the cartridge of preserving also can be impaired gradually meticulously, even if having spent ten or twenty year can also play back, but sound tonequality is also very unstable.But because the limitation of equipment, the teacher can only preserve and edit these teaching tapes by cassette recorder and the computer that has sound card, and traditional cassette recorder tonequality is poor, and can not add other voice document in the process of transcribing.So this method can not satisfy the transcribe demand of people to the high tone quality of cartridge far away.And this kind mode of transcribing also is difficult to audio data is carried out suitable editor.
[utility model content]
Technical assignment of the present utility model is at above the deficiencies in the prior art, provides a kind of tape is carried out the teaching digital omnitape of tape that number is transcribed.
The technical scheme in the invention for solving the technical problem is: a kind of teaching digital omnitape of tape, it is characterized in that: comprise cartridge playback set, analog to digital converter, microprocessor, storer, described cartridge playback set comprises magnetic tape drive motor, magnetic head and signal amplification circuit, and described cartridge playback set, analog to digital converter, microprocessor, memory circuitry connect.
Between above-mentioned cartridge playback set and the analog to digital converter Dolby circuit is arranged.
Above-mentioned Dolby circuit and analog to digital converter have the secondary amplifying circuit.
Comprise that also Electret Condencer Microphone is connected with analog to digital converter.
Compared with prior art, the utlity model has following characteristics:
1, do not need professional sound pick-up outfit and computer auxiliary, can independently finish the number of cartridge and transcribe.
2, overcome the shortcoming of traditional cassette recorder and tape lower tone, protected the tonequality of transcribing recording as far as possible.
3, can when the number of tape is transcribed, carry out impromptu voice edition, enrich the content of this digital audio file.
[description of drawings]
Fig. 1 is a structural representation block diagram of the present utility model.
[embodiment]
Below in conjunction with specification drawings and specific embodiments the utility model is further specified.
As shown in Figure 1, the utility model comprises cartridge playback set, analog to digital converter, microprocessor, storer, and described cartridge playback set, analog to digital converter, microprocessor, storer connect successively.
The cartridge playback set comprises magnetic tape drive motor, magnetic head and signal amplification circuit, and is simple in structure, cheap, maintenance and easy and simple to handle.
Can add one group of Dolby circuit and one group of secondary amplifying circuit between cartridge playback set and the analog to digital converter, reduce the noise in the tape broadcast technically as far as possible, help protecting the tonequality of transcribing audio frequency.
The Electret Condencer Microphone that can also connect one group of high anti-noise is connected with analog to digital converter, can carry out impromptu voice edition when the number of tape is transcribed like this, thereby has enriched the content of this digital audio file.
During use, the user carries out the broadcast of tape by the cartridge playback set, and magnetic tape drive motor-driven tape rotates, and magnetic head is converted to electric signal with magnetic signal, spreads out of through signal amplification circuit.This signal can be peeled off the noise in the tape broadcast technically by after Dolby circuit and the secondary amplifying circuit, after the process analog to digital converter transfers digital code information to, is audio file through microprocessor processes, is stored within the storer at last.Can also be provided with data-interface on the microprocessor,, can connect external equipments such as PC, the audio file of memory stores is transmitted and revises as USB interface.
Need to prove; particular of the present utility model is described in detail the utility model; for a person skilled in the art, in the various conspicuous change of under the situation that does not deviate from spirit and scope of the present utility model it being carried out all within protection domain of the present utility model.
Claims (4)
1. a teaching is with the digital omnitape of tape, it is characterized in that: comprise cartridge playback set, analog to digital converter, microprocessor, storer, described cartridge playback set comprises magnetic tape drive motor, magnetic head and signal amplification circuit, and described cartridge playback set, analog to digital converter, microprocessor, memory circuitry connect.
2. teaching according to claim 1 is characterized in that between described cartridge playback set and the analog to digital converter Dolby circuit being arranged with the digital omnitape of tape.
3. teaching according to claim 2 is characterized in that with the digital omnitape of tape described Dolby circuit and analog to digital converter have the secondary amplifying circuit.
4. teaching according to claim 1 is characterized in that also comprising that with the digital omnitape of tape Electret Condencer Microphone is connected with analog to digital converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206984105U CN201886774U (en) | 2010-12-29 | 2010-12-29 | Digital transcriber of magnetic tape for teaching purpose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206984105U CN201886774U (en) | 2010-12-29 | 2010-12-29 | Digital transcriber of magnetic tape for teaching purpose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886774U true CN201886774U (en) | 2011-06-29 |
Family
ID=44184322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206984105U Expired - Fee Related CN201886774U (en) | 2010-12-29 | 2010-12-29 | Digital transcriber of magnetic tape for teaching purpose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106331917A (en) * | 2016-09-29 | 2017-01-11 | 广西大学 | Remote pickup |
-
2010
- 2010-12-29 CN CN2010206984105U patent/CN201886774U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106331917A (en) * | 2016-09-29 | 2017-01-11 | 广西大学 | Remote pickup |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20111229 |