CN201780784U - Universal serial bus (USB) interface audio box - Google Patents
Universal serial bus (USB) interface audio box Download PDFInfo
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- CN201780784U CN201780784U CN2010205143827U CN201020514382U CN201780784U CN 201780784 U CN201780784 U CN 201780784U CN 2010205143827 U CN2010205143827 U CN 2010205143827U CN 201020514382 U CN201020514382 U CN 201020514382U CN 201780784 U CN201780784 U CN 201780784U
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- electrically connected
- conversion circuit
- signal processing
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Abstract
The utility model discloses a universal serial bus (USB) interface audio box, which comprises a signal processing circuit unit, a storage unit, an A/D conversion circuit unit and a D/A conversion circuit unit. The storage unit, the A/D conversion circuit unit and the D/A conversion circuit unit are electrically connected with the signal processing circuit unit. The signal processing circuit unit is electrically connected with a USB interface and a Sony/Phillips digital interface format (S/PDIF) digital audio signal output socket, the A/D conversion circuit is electrically connected with a left and right analog audio signal input socket, and the D/A conversion circuit is electrically connected with a left and right analog audio signal output socket. Through matching among the circuit units, the USB interface audio box can realize digitization of cassette and vinyl record and realize music recording, editing and playing, is connected with a computer through the USB interface to realize data transmission and power supply, and accordingly saves cost and brings convenience to use.
Description
Technical field
The utility model relates to a kind of music data treating apparatus, especially relates to a kind of USB interface audio jack.
Background technology
Since Edison in 1877 had invented phonograph, sound equipment just became one of requisite element in people's daily life.In nearly more than 100 years before this century, vinyl record is capturing absolute leading effect in the sound equipment field.Because what vinyl record adopted is vibration and friction principle, thereby reduces along with the increase of the number of times that uses the serviceable life of vinyl record.Its principle is the same with initial phonograph, has just utilized electronic technology, mechanical vibration is converted to earlier be convenient to the electric frequency vibration that amplifies and transmit, this electric frequency vibration is restored to be mechanical vibration then.
Magnetic tape cassette that later stage occurs and the mechanical former machine of LP be the little meaning in Datong District basically.But because the quantity of information of magnetic tape cassette is low, signal to noise ratio (S/N ratio) is low and mechanical part noise and instability such as motor device, to making magnetic tape cassette never climb up refined taste.But the use of tape never stopped.Up to today of digital information, though we have carried out digitizing to the sound pick-up outfit of specialty, we the recording terminal that extensively adopts remain professional audio tape.Thereby how to design and a kind ofly can and can carry out the device that music records, edits and play with tape and vinyl record digitizing and become the problem that needs to be resolved hurrily.
The utility model content
The utility model is to provide a kind of at the defective that the above-mentioned background technology exists can and can carry out music and record, edit and play tape and vinyl record digitizing, saves cost and USB interface audio jack easy to use.
For achieving the above object, the utility model discloses a kind of USB interface audio jack, it comprises a signal processing circuit unit and the storage unit, an A/D conversion circuit unit and the D/A conversion circuit unit that are electrically connected with described signal processing circuit unit.Described signal processing circuit unit is electrically connected with a USB interface and a S/PDIF digital audio and video signals output socket, described A/D change-over circuit is electrically connected with a left and right sides simulated audio signal input socket, and described D/A change-over circuit is electrically connected to a left and right sides simulated audio signal output socket.
Further, be provided with a wave filter between described D/A change-over circuit and the described left and right sides simulated audio signal output socket.
Further, described wave filter is a low-pass filter.
Further, described signal processing circuit unit, A/D conversion circuit unit and D/A conversion circuit unit are altogether and be electrically connected to a ground connection screw column.
Further, described signal processing circuit unit is electrically connected with one circuit/phonograph mode switch, and described circuit/phonograph mode switch is used to select high level source of sound pattern or phonograph source of sound input pattern.
Further, described ground connection screw column and described circuit/phonograph mode switch are positioned at the same side of this USB interface audio jack.
In sum, the utility model USB interface audio jack is by the cooperation of described each circuit unit, can and can carry out music and record, edit and play tape and vinyl record digitizing, be connected go forward side by side line data transmission and power supply with computer by described USB interface, thereby save cost and easy to use.
Description of drawings
Fig. 1 is the theory diagram of a kind of embodiment of the utility model.
Embodiment
For further understanding feature of the present utility model, technological means and the specific purposes that reached, function, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
See also Fig. 1, the utility model USB interface audio jack comprises a signal processing circuit unit 1 and the storage unit 2, an A/D conversion circuit unit 3 and the D/A conversion circuit unit 4 that are electrically connected with described signal processing circuit unit 1.Described signal processing circuit unit 1 is electrically connected with a USB interface 5 and a S/PDIF digital audio and video signals output socket 6, and described USB interface 5 is the Type B USB interface.Described USB interface 5 and S/PDIF digital audio and video signals output socket 6 are positioned at opposite end of the present utility model.Be connected with a power light 7 between described USB interface 5 and the described signal processing circuit unit 1.
Described A/D conversion circuit unit 3 is electrically connected with a left and right sides simulated audio signal input socket 8, and described D/A conversion circuit unit 4 is electrically connected with the input end of a wave filter 9, and the output terminal of described wave filter 9 is electrically connected with a left and right sides simulated audio signal output socket 10.In the present embodiment, described wave filter 9 is a low-pass filter.Described signal processing circuit unit 1, A/D conversion circuit unit 3 and D/A conversion circuit unit 4 are altogether and be electrically connected to a ground connection screw column 11.Described signal processing circuit unit 1 is electrically connected with one circuit/phonograph mode switch 12, and described circuit/phonograph mode switch 12 is used to select high level source of sound pattern or phonograph source of sound input pattern.Described ground connection screw column 11 and described circuit/phonograph mode switch 12 are positioned at the same side of this USB interface audio jack.
When using the utility model, described left and right sides simulated audio signal input socket 8 is by the audio output interface grafting of audio frequency apparatuses such as connecting line and blattnerphone or phonograph, and beats according to described blattnerphone or phonograph and to put described circuit/phonograph mode switch 12.Described ground connection screw column 11 is connected with the signal ground of audio frequency apparatuses such as blattnerphone or phonograph, and described left and right sides simulated audio signal output socket 10 is electrically connected with active loudspeaker.Change A type head USB line and after computer well was connected, described power light 7 lighted by B.
When the music that will carry out on edit tape or the vinyl record, the simulated audio signal of audio frequency apparatus such as blattnerphone or phonograph is from 8 inputs of described left and right sides simulated audio signal input socket, being converted to digital signal through described A/D conversion circuit unit 3 sends in the described signal processing circuit unit 1, convert the document that computer can discern to and be stored in the described storage unit 2 through described signal processing circuit unit 1, software for editing by computer, then can carry out editing operation, thereby computer can be become complete family expenses or mobile recording studio described document.
When recording, earlier audio frequency apparatuses such as blattnerphone or phonograph are transferred to less position, regulate the recording software volume control on the computer then, make volume intensity in the optimum position, thereby make recording obtain better tone quality.Can then can listen to the music that digital audio-power amplifier is play by coaxial RCA line and described S/PDIF digital audio and video signals output socket 6 and digital audio-power amplifier grafting.Thereby can reduce the input noise.By described low-pass filter 9 is set, thus but filtering noise.
In sum, the utility model USB interface audio jack is by the cooperation of described each circuit unit, can and can carry out music and record, edit and play tape and vinyl record digitizing, be connected go forward side by side line data transmission and power supply with computer by described USB interface 5, thereby save cost and easy to use.
The above embodiment has only expressed a kind of embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with claims.
Claims (6)
1. USB interface audio jack, it is used to connect computer and audio frequency apparatus and carries out music and record, editor and broadcast, it is characterized in that: comprise a signal processing circuit unit (1) and a storage unit (2) that is electrically connected with described signal processing circuit unit (1), an one A/D conversion circuit unit (3) and a D/A conversion circuit unit (4), described signal processing circuit unit (1) is electrically connected with a USB interface (5) and a S/PDIF digital audio and video signals output socket (6), described A/D change-over circuit is electrically connected with a left and right sides simulated audio signal input socket (8), and described D/A change-over circuit is electrically connected to a left and right sides simulated audio signal output socket (10).
2. USB according to claim 1 interface audio jack is characterized in that: be provided with a wave filter (9) between described D/A change-over circuit and the described left and right sides simulated audio signal output socket (10).
3. USB according to claim 2 interface audio jack is characterized in that: described wave filter (9) is a low-pass filter.
4. according to each described USB interface audio jack of claim 1 to 3, it is characterized in that: described signal processing circuit unit (1), A/D conversion circuit unit (3) and D/A conversion circuit unit (4) are altogether and be electrically connected to a ground connection screw column (11).
5. USB according to claim 4 interface audio jack, it is characterized in that: described signal processing circuit unit (1) is electrically connected with one circuit/phonograph mode switch (12), and described circuit/phonograph mode switch (12) is used to select high level source of sound pattern or phonograph source of sound input pattern.
6. USB according to claim 5 interface audio jack is characterized in that: described ground connection screw column (11) is positioned at the same side of this USB interface audio jack with described circuit/phonograph mode switch (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205143827U CN201780784U (en) | 2010-08-31 | 2010-08-31 | Universal serial bus (USB) interface audio box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205143827U CN201780784U (en) | 2010-08-31 | 2010-08-31 | Universal serial bus (USB) interface audio box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201780784U true CN201780784U (en) | 2011-03-30 |
Family
ID=43793990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205143827U Expired - Fee Related CN201780784U (en) | 2010-08-31 | 2010-08-31 | Universal serial bus (USB) interface audio box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201780784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229000A (en) * | 2016-07-18 | 2016-12-14 | 赵天鸽 | A kind of Digital Learning content playback method |
-
2010
- 2010-08-31 CN CN2010205143827U patent/CN201780784U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229000A (en) * | 2016-07-18 | 2016-12-14 | 赵天鸽 | A kind of Digital Learning content playback method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20150831 |
|
| EXPY | Termination of patent right or utility model |