CN107948875A - Multi input end audio conversion device - Google Patents
Multi input end audio conversion device Download PDFInfo
- Publication number
- CN107948875A CN107948875A CN201711269036.XA CN201711269036A CN107948875A CN 107948875 A CN107948875 A CN 107948875A CN 201711269036 A CN201711269036 A CN 201711269036A CN 107948875 A CN107948875 A CN 107948875A
- Authority
- CN
- China
- Prior art keywords
- audio
- input end
- conversion device
- interface
- multi input
- Prior art date
- 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.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Abstract
The invention discloses multi input end audio conversion device, it is related to audio converter field, including microphone interface, audio interface, blue tooth interface, audio switch, sound signal launcher frequency switch, further include clamping device, the clamping device is arranged on the adjacent face of three kinds of interfaces, the audio switch output terminal is sequentially connected wave filter, analog-digital converter, dsp processor, digital analog converter, the output terminal connection sound signal launcher of digital analog converter, with compatible multiple input modes, the characteristics of enabling the existing hearing aid with Bluetooth voice frequency converter to match more equipment；By wave filter, the multiple noise reduction of dsp processor, the quality of voice is improved, helps dysaudia crowd to be best understood from semanteme；By adding clamping device, and by the automatic taking turn technology of audio switch, automatic identification and the audio input for separating conducting, make present invention carrying, using more convenient.
Description
Technical field
The present invention relates to a kind of audio converter, and in particular to multi input end audio conversion device.
Background technology
At present, China possess dysaudia people it is more and more, mainly including the elderly, slight deafness patient etc., hearing aid
Device solves the problem of dysaudia crowd as a kind of miniature loudspeaker for helping dysaudia crowd.Hearing aid is one
Miniature loudspeaker, expands the sound that can't hear originally, recycles the residual hearing for the person that listens to barrier, sound is sent to brain
Auditory center, and feel sound.Mainly it is made of microphone, amplifier, earphone, power supply and five part of volume control.Hearing aid
Device is divided into air conduction hearing aid and ossiphone by conduction pattern；Boxlike, spectacle, hairpin-type, ear are categorized as by occupation mode
Back of the body formula, inner ear type, duct-type, deep duct-type hearing aid.With the development of technology, the equipment such as TV box, notebook, mobile phone is all
Have Bluetooth function, Bluetooth audio frequency modular converter is also added in hearing aid to help dysaudia personnel to obtain these equipment
Information.
However, still there are many equipment not support Bluetooth technology at present, also often can be obvious there are noise even if there is Bluetooth technology
The problems such as, seriously affect the experience of dysaudia crowd, newly-increased oil (gas) filling device as not Portable belt and cause to listen barrier crowd's
Inconvenience.Therefore, urgent need is a kind of being capable of compatible a variety of audio inputs, effective noise reduction, portable audio conversion device.
The content of the invention
The technical problems to be solved by the invention are to support a variety of inputs, clear, portable audio conversion device, and purpose exists
In providing multi input end audio conversion device, solve the above problems.
The present invention is achieved through the following technical solutions：
Including microphone interface, audio interface, blue tooth interface, audio switch, sound signal launcher, multi input end sound
The one side of frequency conversion equipment sets microphone interface, audio interface, blue tooth interface, and three kinds of interfaces are commonly connected to be installed on
In audio switch inside the audio conversion device of multi input end, clamping device is further included, the clamping device is arranged on described
The adjacent face of three kinds of interfaces, the audio switch output terminal are sequentially connected wave filter, analog-digital converter, dsp processor, number
Mode converter, the output terminal connection sound signal launcher of digital analog converter.Microphone interface, audio interface, blue tooth interface are made
For audio input, meet the requirement of most of audio input standard；Audio switch be used for detect and control audio input end with
The conducting of analog-digital converter；Audio signal when wave filter is to analog signal state does preliminary filtering, removes ambient noise, electricity
Source noise etc.；Audio signal is converted into digital signal by analog-digital converter, and the dsp processor realizes the functions such as noise reduction, at DSP
Noise suppression algorithm built in device is managed, since dysaudia crowd easily produces speech understanding difficulty, is made an uproar by rational ripe
Sound restrainable algorithms, using digital speech noise reduction technology, can improve the quality of voice.It is currently based on the Wiener filtering noise reduction of multichannel
Technology is a kind of effective means.Signal after processing is converted to analog signal by digital analog converter again, then this signal is transmitted
To sound signal launcher；Voice signal after processing is delivered to hearing aid by the sound signal launcher, makes dysaudia
Person obtains more good audio signal.Simultaneously as being configured with clamping device, the present apparatus can be easily clamped in collar equipotential
Put, broken away from the shortcomings that newly added equipment is not portable.
Further, the audio switch uses automatic taking turn technology.The audio switch for possessing automatic taking turn technology can
Automatic detection audio input and constant conduction and output, avoid the operation artificially switched, more intelligent.
Further, the sound signal launcher uses bluetooth transmitters.The bluetooth transmitters preferably with existing hearing aid
Match good bluetooth transmitters.
Further, the wave filter uses low-pass filter.Low-pass filter can effectively filter ambient noise, power supply is made an uproar
The high-frequency noises such as sound, space radiation, improve audio quality.
Further, the clamping device uses serrated clips.Due to the design of serrated clips, clamping device and clothing are added
Contact area, makes of the invention more reliable with the connection of carry-on clothing.
Compared with prior art, the present invention have the following advantages and advantages：
1st, multi input end of the present invention audio conversion device, compatible multiple input modes, make existing with Bluetooth audio frequency conversion
The hearing aid of device can match more equipment；
2nd, multi input end of the present invention audio conversion device, by wave filter, the multiple noise reduction of dsp processor, improves voice
Quality, helps dysaudia crowd to be best understood from semanteme；
3rd, multi input end of the present invention audio conversion device, by adding clamping device, and passes through audio switch automatic wheel
Technology, automatic identification and the audio input for separating conducting are patrolled, makes present invention carrying, using more convenient.
Brief description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the principle of the present invention figure；
Fig. 2 is a kind of appearance assumption diagram of embodiment of the present invention.
Mark and corresponding component title in attached drawing：
1- microphone interfaces, 2- audio interface, 3- blue tooth interfaces, 4- sound signal launchers, 5- audio conversion device casees
Body, 6- clamping devices.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in Figure 1, multi input end of the present invention audio conversion device, including microphone interface 1, audio interface 2, bluetooth connect
Mouth 3, audio switch, sound signal launcher 4, the one side of multi input end audio conversion device set microphone interface 1, audio
Interface 2, blue tooth interface 3, the audio that three kinds of interfaces are commonly connected to be installed on inside the audio conversion device of multi input end are cut
On parallel operation, clamping device 6 is further included, the clamping device is arranged on the adjacent face of three kinds of interfaces, the Audio conversion
Device output terminal is sequentially connected wave filter, analog-digital converter, dsp processor, digital analog converter, the output terminal connection of digital analog converter
Sound signal launcher.
In use, the position easy to placement on collar or clothes, connection are fixed on by the clamping device of the present invention
The sound signal launcher of the present invention selects to hearing aid but is not limited to tone frequency channel wire connection；When input signal is microphone input
Audio signal when, microphone apparatus is connected to the microphone interface 1 of multi input end audio conversion device, user is to wheat
When gram wind is spoken, by the processing of wave filter, analog-digital converter, dsp processor, digital analog converter, hearing aid will send elimination
The high-quality audio signal of the noises such as environment, power supply；When the audio output signal that input signal sends for notebook, MP3 etc.
When, the audio interface 2 of these equipment connection multi input end audio conversion device when equipment sends audio signal, is led to
The processing of wave filter, analog-digital converter, dsp processor, digital analog converter, hearing aid, which will be sent, eliminates environment, power supply etc.
The high-quality audio signal of noise；When the equipment that input signal is transmittable Bluetooth audio signals, such as TV box are described more
Input terminal audio conversion device is connected by blue tooth interface 3 with equipment, when equipment sends Bluetooth audio signals, passes through filtering
The processing of device, analog-digital converter, dsp processor, digital analog converter, hearing aid will send and eliminate the noises such as environment, power supply
High-quality audio signal.
Embodiment 2
The present embodiment is made that on the basis of embodiment 1 to be limited further below：The audio switch is using automatic
Taking turn technology, goes out audio switch using XUNWEI8 into 1.The sound signal launcher 4 uses bluetooth transmitters, using type
Number for RDT1202 Bluetooth audio frequency forward emitter.The wave filter uses low-pass filter, using model YB11E1-10A-Q
Low pass power-supply filter.Noise suppression algorithm built in the dsp processor, it is interior using ADAU1452 digital audio processors
Put the Wiener filtering noise reduction algorithm based on multichannel.The clamping device uses serrated clips, the present invention can be clipped in collar or
Coat-sleeve, because sawtooth pattern clamping device can effectively fix the present invention on clothes so that connecting line is shorter, more portable.
Above-described embodiment, has carried out the purpose of the present invention, technical solution and beneficial effect further
Describe in detail, it should be understood that the foregoing is merely the embodiment of the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done, should all include
Within protection scope of the present invention.
Claims (5)
1. multi input end audio conversion device, including microphone interface, audio interface, blue tooth interface, audio switch, sound letter
Number transmitter, the one side of multi input end audio conversion device set microphone interface, audio interface, blue tooth interface, described three kinds
Interface is commonly connected to be installed in the audio switch inside the audio conversion device of multi input end, it is characterised in that further includes
Clamping device, the clamping device are arranged on the adjacent face of three kinds of interfaces, and the audio switch output terminal connects successively
Connect wave filter, analog-digital converter, dsp processor, digital analog converter, the output terminal connection voice signal transmitting of digital analog converter
Device.
2. multi input end according to claim 1 audio conversion device, it is characterised in that the audio switch uses certainly
Driving wheel patrols technology.
3. multi input end according to claim 1 audio conversion device, it is characterised in that the sound signal launcher makes
Use bluetooth transmitters.
4. multi input end according to claim 1 audio conversion device, it is characterised in that the wave filter uses low pass filtered
Ripple device.
5. multi input end according to claim 1 audio conversion device, it is characterised in that the clamping device uses sawtooth
Folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711269036.XA CN107948875A (en) | 2017-12-05 | 2017-12-05 | Multi input end audio conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711269036.XA CN107948875A (en) | 2017-12-05 | 2017-12-05 | Multi input end audio conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107948875A true CN107948875A (en) | 2018-04-20 |
Family
ID=61945772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711269036.XA Withdrawn CN107948875A (en) | 2017-12-05 | 2017-12-05 | Multi input end audio conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107948875A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108174335A (en) * | 2017-12-27 | 2018-06-15 | 安徽科创智慧知识产权服务有限公司 | A kind of novel audio conversion equipment |
-
2017
- 2017-12-05 CN CN201711269036.XA patent/CN107948875A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108174335A (en) * | 2017-12-27 | 2018-06-15 | 安徽科创智慧知识产权服务有限公司 | A kind of novel audio conversion equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180420 |