CN204993804U - Portable audio circuit and electronic equipment - Google Patents
Portable audio circuit and electronic equipment Download PDFInfo
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- CN204993804U CN204993804U CN201520459090.0U CN201520459090U CN204993804U CN 204993804 U CN204993804 U CN 204993804U CN 201520459090 U CN201520459090 U CN 201520459090U CN 204993804 U CN204993804 U CN 204993804U
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Abstract
The utility model provides a portable audio circuit and electronic equipment. The circuit includes: a data interface for receiving the song data signal of outside intelligent terminal input, a voice input interface for receiving outside pickup equipment import's sound analog signal, with voice input interface connection for the adc who is sound analog signal transition sound data signal, be connected with data interface and adc respectively for synthesize sound data signal and song data signal for audio mixing data signal's signal processor, be connected with signal processor for convert audio mixing data signal into audio mixing analog signal's digital analog converter, be connected with digital analog converter, with the audio mixing analog signal's of digital analog converter conversion voice output interface, when pronunciation equipment inserts the voice output interface, can export the audio mixing analog signal that this voice output interface was received. The utility model discloses easily carry, can satisfy user anytime and anywhere and carry out the demand that K sang.
Description
Technical field
The utility model relates to audio area, particularly a kind of portable audio frequency circuit and electronic equipment.
Background technology
At present, K sings equipment due to high costs, should not carry, and often only has public place of entertainment to have condition configuration.Therefore, people arrive KTV place to carry out K song specially.But this entertainment way one needs to preengage in advance, activity venue, activity personnel placement underaction; Two is that cost expenses is higher.
Visible, current a kind of portable K song equipment of needing badly is to meet the living needs of people.
Utility model content
The purpose of this utility model is to provide a kind of portable audio frequency circuit and electronic equipment, is intended to solve current K and sings the problem that equipment should not carry.
For solving the problems of the technologies described above, portable audio frequency circuit of the present utility model comprises:
For being connected with external smart terminal equipment, receive the data-interface of the song digital signal of this external smart terminal input;
For being connected with pick up facility, receive the Speech input interface of the speech simulation signal of this pick up facility input;
Be connected with described Speech input interface, for by described Speech input interface to speech simulation signal be converted to the analog to digital converter of audio digital signal;
Be connected with described data-interface and described analog to digital converter respectively, the signal processor that the song digital signal synthesis changed for the audio digital signal changed by described data-interface and described data-interface is audio mixing digital signal;
Be connected with described signal processor, the audio mixing digital signal for being synthesized by described signal processor is converted to the digital to analog converter of audio mixing analog signal;
Be connected with described digital to analog converter, for the voice output interface of the output of audio mixing analog signal that described digital to analog converter is changed; Wherein, when pronunciation equipment accesses described voice output interface, the audio mixing analog signal of this voice output interface can be exported.
In addition, electronic equipment of the present utility model includes above-mentioned portable audio frequency circuit, therefore reaches identical technique effect with this portable audio frequency circuit.
The beneficial effect of technique scheme of the present utility model is as follows:
Portable audio frequency circuit of the present utility model and electronic equipment are integrated with the functional hardware required for K song, little owing to taking volume, therefore have good pocket, meet the demand that user carries out K song whenever and wherever possible, have very high practical value.
Accompanying drawing explanation
Fig. 1 is the structural representation of portable audio frequency circuit of the present utility model;
Fig. 2 to Fig. 4 is the structural representation of portable audio frequency circuit of the present utility model for different implementation;
Fig. 5 is the structural representation of electronic equipment of the present utility model.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
For the problem that the K song existed at present is difficult, the utility model provides a kind of cost low, portative portable audio frequency circuit.As shown in Figure 1, this portable audio frequency circuit comprises:
Data-interface, signal processor, analog to digital converter, digital to analog converter, Speech input interface and voice output interface.
Wherein, data-interface is connected with signal processor.Intelligent terminal (as computer, mobile phone, PAD etc.) can be linked on data-interface by user, and on intelligent terminal, select song, to signal processor transmission song digital signal.
On the other hand, pick up facility (as microphone) can be linked into tut input interface by user.In K song process, the speech simulation signal (i.e. audio signal) from user's input got is delivered on signal processor by Speech input interface by pick up facility.
Audio digital signal from Speech input interface and the song digital signal from data-interface are carried out synthesis process by signal processor, obtain audio mixing digital signal, and this audio mixing digital signal is sent to digital to analog converter.
Digital to analog converter the most at last audio mixing digital signal converts audio mixing analog signal to, and is exported by voice output interface, if there is pronunciation equipment (as earphone, sound equipment etc.) to access voice output interface, then plays according to audio mixing analog signal.
By above-mentioned known, portable audio frequency circuit of the present utility model is integrated with the functional hardware required for K song, little owing to taking volume, therefore has good pocket, meets the demand that user carries out K song whenever and wherever possible, have very high practical value.
Certainly, in actual applications, different pronunciation equipment has different operating currents, therefore needs portable set of the present utility model can export the audio mixing analog signal of different capacity.As shown in Figure 2, in the portable audio frequency circuit of the present embodiment, digital to analog converter is connected with voice output interface especially by power amplifier, and this power amplifier can change the power (i.e. the electric current of audio mixing analog signal) of audio mixing analog signal, thus to put forward the applicability of product.
In addition, if user under noisy environment K song time, pick up facility also can obtain the analog signal of ambient noise, thus disturbs play quality.For avoiding above-mentioned phenomenon to occur, as shown in Figure 4, in portable audio frequency circuit of the present utility model, the anti-noise multiplier (-icator) also comprising noise gathering device and be connected with noise gathering device; Wherein, Speech input interface is connected with described analog to digital converter by anti-noise multiplier (-icator).
In portable audio frequency circuit of the present utility model, the noise of environment bad student is caught by noise gathering device, i.e. noise simulation signal, anti-noise multiplier (-icator) carries out anti-phase to noise simulation signal afterwards, generate anti-noise simulation signal, and superpose with speech simulation signal, obtain the speech simulation signal after noise reduction, speech simulation signal the most at last after noise reduction is sent to signal processor by analog to digital converter, thus improves the tonequality of pronunciation equipment output.
In addition, consider that user might not be configured with the pronunciation equipment of sound equipment class, therefore preferably, portable audio frequency circuit of the present utility model also carries loud speaker.As shown in Figure 4, this loud speaker is connected with described digital to analog converter by a loudspeaker switch.In actual applications, loud speaker, loudspeaker switch and Speech input interface are parallel with one another to be received in power amplifier, and user only need open loudspeaker switch can allow speaker operation.And loud speaker operationally, also any interference can not be produced to the pronunciation equipment of access.
Be more than portable audio frequency circuit of the present utility model, owing to being integrated with the functional hardware required for K song, and it is little, lightweight to take volume, is therefore easy to carry, and can meet user's K song demand anywhere or anytime.
Accordingly, the utility model is also by a kind of electronic equipment including above-mentioned portable audio frequency circuit.Conveniently user carries, signal processor in portable audio frequency circuit, digital to analog converter, analog to digital converter, anti-noise multiplier (-icator) and preamplifier are integrated on same circuit board, because circuit board is laminated structure, therefore whole electronic equipment does not need to take too much space.
Further, as shown in Figure 5, electronic equipment of the present utility model also comprises a casing 1, and it is inner that foregoing circuit plate is arranged on casing 1, and casing 1 can provide protection for circuit board, and prevents external dust from touching on circuit board, affects hardware performance.
In addition, the surface of casing 1 is also provided with the handle 2 facilitating user to carry.Preferably, handle 2 is for being located at the telescopic band on casing 1, and when user does not mention telescopic band, this telescopic band docile is on the surface of casing.
On the other hand, need user manually operated as Speech input interface 3, voice output interface 4, loudspeaker switch 6, power amplifier 7 are arranged on the surface of casing 1, with easy to use.In addition, as loud speaker 5 and noise gathering device (exemplarily property introduction, noise gathering device is arranged on non-visible of Fig. 5 casing), these need external hardware to be arranged on the surface of casing 1 too.
In sum, electronic equipment of the present utility model is integrated with the functional hardware needed for K song, and it is little, lightweight to take volume, is therefore easy to carry about with one, and can meet user's K song demand anywhere or anytime.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.As, the quantity of loud speaker, Speech input interface, or the setting position etc. on casing.
In addition, also need to be described, the above-mentioned all hardware related to is existing product, and the utility model only reconfigures for existing hardware, does not relate to the improvement in program.
Claims (9)
1. a portable audio frequency circuit, is characterized in that, comprising:
For being connected with external smart terminal equipment, receive the data-interface of the song digital signal of this external smart terminal input;
For being connected with pick up facility, receive the Speech input interface of the speech simulation signal of this pick up facility input;
Be connected with described Speech input interface, for by described Speech input interface to speech simulation signal be converted to the analog to digital converter of audio digital signal;
Be connected with described data-interface and described analog to digital converter respectively, the signal processor that the song digital signal synthesis changed for the audio digital signal changed by described data-interface and described data-interface is audio mixing digital signal;
Be connected with described signal processor, the audio mixing digital signal for being synthesized by described signal processor is converted to the digital to analog converter of audio mixing analog signal;
Be connected with described digital to analog converter, for the voice output interface of the output of audio mixing analog signal that described digital to analog converter is changed; Wherein, when pronunciation equipment accesses described voice output interface, the audio mixing analog signal of this voice output interface can be exported.
2. portable audio frequency circuit according to claim 1, is characterized in that, also comprise:
Access between described digital to analog converter and described voice output interface, for changing the power amplifier of the power of described audio mixing analog signal.
3. portable audio frequency circuit according to claim 1, is characterized in that, also comprise:
Access between described digital-to-analogue number converter and described Speech input interface, for improving the preamplifier of described speech simulation signal.
4. portable audio frequency circuit according to claim 2, is characterized in that, also comprise:
For obtaining the noise gathering device of the noise simulation signal that external environment condition produces;
Be connected with noise gathering device, for carrying out the anti-noise multiplier (-icator) of noise reduction to described speech simulation signal according to described noise simulation signal, described Speech input interface is connected with described analog to digital converter by described anti-noise multiplier (-icator).
5. portable audio frequency circuit according to claim 4, is characterized in that, also comprise:
Loud speaker and loudspeaker switch;
Described loud speaker is connected with described digital to analog converter by described loudspeaker switch.
6. an electronic equipment, is characterized in that, described electronic equipment comprises the portable audio frequency circuit as described in any one of claim 1-5.
7. electronic equipment according to claim 6, is characterized in that,
Described signal processor, digital to analog converter, analog to digital converter, preamplifier, anti-noise multiplier (-icator) are integrated on same circuit board;
Described portable audio frequency circuit also comprises:
Casing, described circuit board is arranged on described box house;
Wherein, described voice output interface, Speech input interface, power amplifier, noise gathering device, loud speaker and loudspeaker switch are arranged on the surface of described casing.
8. electronic equipment according to claim 7, is characterized in that, also comprises:
Be arranged on the handle of described tank surface.
9. electronic equipment according to claim 8, is characterized in that,
Described handle is specially the telescopic band being arranged on described tank surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459090.0U CN204993804U (en) | 2015-06-29 | 2015-06-29 | Portable audio circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459090.0U CN204993804U (en) | 2015-06-29 | 2015-06-29 | Portable audio circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204993804U true CN204993804U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520459090.0U Active CN204993804U (en) | 2015-06-29 | 2015-06-29 | Portable audio circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204993804U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851476A (en) * | 2016-11-03 | 2017-06-13 | 灵感创作室有限公司 | A kind of PA-system used cooperatively with microphone |
-
2015
- 2015-06-29 CN CN201520459090.0U patent/CN204993804U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851476A (en) * | 2016-11-03 | 2017-06-13 | 灵感创作室有限公司 | A kind of PA-system used cooperatively with microphone |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |