CN202142291U - CD player possessing magnetic tape transcription function - Google Patents
CD player possessing magnetic tape transcription function Download PDFInfo
- Publication number
- CN202142291U CN202142291U CN201120247635U CN201120247635U CN202142291U CN 202142291 U CN202142291 U CN 202142291U CN 201120247635 U CN201120247635 U CN 201120247635U CN 201120247635 U CN201120247635 U CN 201120247635U CN 202142291 U CN202142291 U CN 202142291U
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- magnetic tape
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- digital converter
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Abstract
The utility model discloses a CD player possessing a magnetic tape transcription function, and relates to a voice teaching device. The CD player possessing a magnetic tape transcription function includes a magnetic tape driving motor, a magnetic head, a CD reading module, a signal amplification circuit and an analog-to-digital converter. The magnetic head, the signal amplification circuit and the analog-to-digital converter are electrically connected in sequence; the CD reading module is electrically connected with the analog-to-digital converter; and the analog-to-digital converter is also electrically connected with a microprocessor, a memory and a USB interface in sequence. In the utility model, the sound teaching data in the card type magnetic tape is transcribed to digital audio frequency data, the problems are solved in the traditional card type magnetic tape that the preservation is difficult, the sound quality is unstable, the play is inconvenient, etc., sound data of the traditional magnetic tape is preserved as digital audio data by the magnetic tape transcription system, thereby the traditional magnetic tape data is effectively protected, and the teaching data preserved in the magnetic tape can be applied in the modern teaching. In additional, in the utility model, a CD optical disc can be played, which can help a teacher for better voice teaching, and the CD player possessing a magnetic tape transcription function is advantageous by possessing various functions, being convenient and practical, etc.
Description
Technical field
The utility model relates to a kind of phonetic teaching equipment, but relates in particular to a kind of CD playback equipment of Dub.
Background technology
Cartridge is commonly called magnetic tape cassette, tape, cassette tape or tape, is a kind of magnetic sound recording medium device.Although be designed at first as language recording purposes, along with the continuous development of performance, cartridge has replaced the status of opening quotation audiotape at civil area.Its purposes from portable sound equipment to desk-top sound equipment, even as the data storing of early stage computer.Early 1970s, cartridge was one of two kinds of most popular music distribution media all the time to the end of the nineties, originally was cassette tape and LP disc, then was cassette tape and CD afterwards.Along with the continuous development of digitizing technique, magnetic tape record/play sound technology is replaced by digital multimedia gradually.But the teaching recording material that stores in the cartridge much is very valuable; To teacher's teaching is helpful; For example: most foreign language phonetic teaching data is to be stored in the cartridge, and these are stored in the cartridge data and just need transcribe and preserve.And the preservation of cartridge bothers very much; In case the time is long or the preservation measure is bad, just occurs making moist easily, receive magnetic, fall situation such as magnetic, even the cartridge of preserving meticulously also can be impaired gradually; Can also play back even if spent ten or twenty year, but sound tonequality is also very unstable.But because the limitation of equipment; The teacher can only transcribe these teaching tapes with the computer that has sound card through cassette recorder and preserve and editor; The recording tonequality of traditional cassette recorder is poor; Existing digitalized audio record equipment tends to occur many noises or noise transcribing cartridge, and it is also undesirable to transcribe effect.This kind method can not satisfy people far away the high tone quality of cartridge is transcribed needs; And this kind mode of transcribing also is difficult to audio data is carried out suitable editor.
The utility model content
The purpose of the utility model is to overcome existing tape file maintenance, transcribes the difficult technologies defective; But a kind of CD playback equipment of Dub is provided; This teaching equipment has high-quality tape re-reading system; Can be transcribed into the DAB data to the tape resources material of preciousness and preserve, this equipment also has the CD Play System of auxiliary teachers ' teaching simultaneously, can solve the problems of the technologies described above effectively.
The purpose of the utility model realizes through following technical proposals:
But a kind of CD playback equipment of Dub; Comprise magnetic tape drive motor, magnetic head, CD read module, signal amplification circuit and analog to digital converter; Said magnetic head, signal amplification circuit and analog to digital converter are electrically connected successively; Said CD read module is electrically connected with analog to digital converter, and said analog to digital converter also is electrically connected with microprocessor, storer and USB interface successively.
In order to realize the utility model better, also be electrically connected with Dolby circuit between said signal amplification circuit and the analog to digital converter.
Further, also be electrically connected with the secondary amplifying circuit between said Dolby circuit and the analog to digital converter.
As preferably, said analog to digital converter also is electrically connected with loudspeaker and earphone.
As preferably, said analog to digital converter inside comprises CD analog-to-digital conversion module and tape analog-to-digital conversion module.
The utility model is compared than prior art, has the following advantages and beneficial effect:
(1) the utility model can be transcribed into the DAB data with the sound resources material in the cartridge; Solve traditional cartridge and preserved difficult, problems such as tonequality is unstable, broadcast inconvenience; This tape re-reading system saves as the DAB data with traditional tape audio document; Thereby protected traditional tape data effectively, and can be applied to the resources material that is stored in the tape in the modernizing teaching.
(2) the utility model can play CD CD, help teacher's phonetic teaching better, have diverse in function, advantage such as convenient and practical.
(3) the tape magnetic signal of the utility model elder generation process signal processing and amplifying, and then through after reduction or removing noise processed, and the amplifying signal preservation, so the acoustical quality of storing is play-overed better effects if than tape, improved the teaching psycho-acoustical quality; And after being stored as numerical information, people can arbitrarily leave out, change or supplementary audio data, have enriched the teaching audio content.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Wherein, the pairing name of the Reference numeral in the accompanying drawing is called:
The 1-magnetic head, 2-CD read module, 3-magnetic tape drive motor, 4-signal amplification circuit, 5-Dolby circuit; 6-secondary amplifying circuit, 7-analog to digital converter, 8-microprocessor, 9-storer, 10-loudspeaker; The 11-earphone, 12-USB interface 12,71-CD analog-to-digital conversion module, 72-tape analog-to-digital conversion module.
Embodiment
Below in conjunction with embodiment the utility model is done to specify further:
Embodiment
As shown in Figure 1; But a kind of CD playback equipment of Dub; This equipment comprises magnetic tape drive motor 3, magnetic head 1, CD read module 2, signal amplification circuit 4, Dolby circuit 5, secondary amplifying circuit 6 and analog to digital converter 7; The main effect of magnetic tape drive motor 3 is to drive cartridge to rotate, and magnetic head 1, signal amplification circuit 4, Dolby circuit 5, secondary amplifying circuit 6 and analog to digital converter 7 are electrically connected successively; CD read module 2 is electrically connected with analog to digital converter 7, and analog to digital converter 7 also is electrically connected with microprocessor 8, storer 9 and usb 12 successively.Analog to digital converter 7 also is electrically connected with loudspeaker 10 and earphone 11.Analog to digital converter 7 inside of present embodiment include CD analog-to-digital conversion module 71 and tape analog-to-digital conversion module 72.
But the principle of work of the CD playback equipment of this Dub is:
Cartridge ceaselessly rotates under the drive of driven magnetic translator; This moment, the magnetic head 1 of cartridge converted magnetic signal into electric signal; After electric signal is handled through the amplifying signal of signal amplification circuit 4; Through the reduction and the removal noise processed of Dolby circuit 5, handle through the amplification signal once more of secondary amplifying circuit 6 then again.Various noises in the time of so just disposing tape technically and transcribe; Tape modular converter 72 through analog to digital converter 7 is a digital signal with electrical signal conversion again; And 8 processing of process microprocessor save as audio data; This audio data is stored in the storer 9 at last, and storer 9 is electrically connected with usb 12, and the teacher can transfer in the external equipments such as PC through the audio data of transcribing that the usb data bundle of lines is stored in the storer 9.
The CD dish is put into this CD playback equipment, and the CD dish reads through CD read module 2, and converts analog electrical signal into through the CD analog-to-digital conversion module 71 in the analog to digital converter 7, and people can play through loudspeaker 10 or earphone 11.
This CD playback equipment can be transcribed into the DAB data with the sound resources material in the cartridge, thereby has protected traditional tape data effectively, and can be applied to the resources material that is stored in the tape in the modernizing teaching.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. but the CD playback equipment of a Dub; It is characterized in that: comprise magnetic tape drive motor (3), magnetic head (1), CD read module (2), signal amplification circuit (4) and analog to digital converter (7); Said magnetic head (1), signal amplification circuit (4) and analog to digital converter (7) are electrically connected successively; Said CD read module (2) is electrically connected with analog to digital converter (7), and said analog to digital converter (7) also is electrically connected with microprocessor (8), storer (9) and USB interface (12) successively.
2. but according to the CD playback equipment of the described a kind of Dub of claim 1, it is characterized in that: also be electrically connected with Dolby circuit (5) between said signal amplification circuit (4) and the analog to digital converter (7).
3. but according to the CD playback equipment of the described a kind of Dub of claim 1, it is characterized in that: also be electrically connected with secondary amplifying circuit (6) between said Dolby circuit (5) and the analog to digital converter (7).
4. but according to the CD playback equipment of the arbitrary described a kind of Dub of claim 1～3, it is characterized in that: said analog to digital converter (7) also is electrically connected with loudspeaker (10) and earphone (11).
5. but according to the CD playback equipment of the described a kind of Dub of claim 4, it is characterized in that: said analog to digital converter (7) inside comprises CD analog-to-digital conversion module (71) and tape analog-to-digital conversion module (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120247635U CN202142291U (en) | 2011-07-14 | 2011-07-14 | CD player possessing magnetic tape transcription function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120247635U CN202142291U (en) | 2011-07-14 | 2011-07-14 | CD player possessing magnetic tape transcription function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202142291U true CN202142291U (en) | 2012-02-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120247635U Expired - Fee Related CN202142291U (en) | 2011-07-14 | 2011-07-14 | CD player possessing magnetic tape transcription function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202142291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206289A (en) * | 2015-11-02 | 2015-12-30 | 何觉清 | Magnetic tape player with Bluetooth emission function |
-
2011
- 2011-07-14 CN CN201120247635U patent/CN202142291U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206289A (en) * | 2015-11-02 | 2015-12-30 | 何觉清 | Magnetic tape player with Bluetooth emission function |
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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: 20120208 Termination date: 20120714 |