CN108200498A - A kind of earphone with pickup function - Google Patents
A kind of earphone with pickup function Download PDFInfo
- Publication number
- CN108200498A CN108200498A CN201810090302.0A CN201810090302A CN108200498A CN 108200498 A CN108200498 A CN 108200498A CN 201810090302 A CN201810090302 A CN 201810090302A CN 108200498 A CN108200498 A CN 108200498A
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- China
- Prior art keywords
- sound
- earphone
- analog
- group
- dsp
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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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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Abstract
The invention discloses a kind of earphones with pickup function, including the headset body for carrying even number loudspeaker and the signal input interface being connected on earphone, further include the sound pick-up group being arranged in headset body, the sound pick-up group and signal input interface are connect by analog-to-digital conversion with DSP, and DSP passes sequentially through digiverter and power amplifier is connect with loudspeaker；Method of this programme by adding sound pick-up for earphone, simultaneously, the sound of the external environment of sound pick-up acquisition is mixed with the sound that the needs that signal input interface inputs play, the sound of digital 5.1 sound channels of generation, the voice data translation of digital 5.1 sound channels is driving loudspeaker work after analog signal by analog-digital commutator, due to using 5.1 sound channel technologies, user can identify the source direction of sound from the sound of earphone, reliability higher effectively increases the safety that earphone is used on road.
Description
Technical field
The present invention relates to a kind of earphones, and in particular to a kind of earphone with pickup function.
Background technology
Earphone is a pair of of converting unit, it receives the electric signal that media player or receiver are sent out, using close to ear
Piece loud speaker convert it into the sound wave that can be heard.Earphone is usually separable with media player, is inserted using one
Head connection.Benefit is in the case where not influencing other people, can listen to sound equipment alone；Also the sound of ambient enviroment can be separated, to
The people that recording studio, DJ, journey, movement etc. use under noisy environment of making an uproar is helpful.Earphone original is made on phone and radio
, but it is prevailing with portable electronic devices, earphone is chiefly used in mobile phone, walkman, radio, portable electronic game sum digit
Reproducing apparatus for phonotape etc..
If but when using earphone on street, in addition to because of volume to be turned up, and cause outside hearing loss, be absorbed in audition
It is happy, it is easy to user be enabled to lose alertness to the sound of periphery, the chance caused danger is increased, should not use.
Invention content
If the technical problems to be solved by the invention are when using earphone on street, in addition to because of volume to be turned up, and make
Into outside hearing loss, it is absorbed in and listens to music, it is easy to user is enabled to lose alertness to the sound of periphery, increase and cause danger
Chance, and it is an object of the present invention to provide a kind of earphone with pickup function, if solving when using earphone on street, in addition to because to be turned up
Volume, and cause outside hearing loss, it is absorbed in and listens to music, it is easy to user is enabled to lose alertness to the sound of periphery, increased
The problem of chance for causing danger.
The present invention is achieved through the following technical solutions：
A kind of earphone with pickup function, including the headset body for carrying even number loudspeaker and the signal being connected on earphone
Input interface, further includes the sound pick-up group being arranged in headset body, and the sound pick-up group and signal input interface pass through modulus
Conversion is connect with DSP, and DSP passes sequentially through digiverter and power amplifier is connect with loudspeaker；
Sound pick-up group：External voice data are sent to analog-digital commutator by the sound around acquiring；
Analog-digital commutator：The input sound that the external voice data and signal input interface that sound pick-up group is sent are sent
Data are converted into digital signal and are sent to DSP；
DSP：It is handled according to the signal that Dolby Headphone interface differential techniques receive, 5.1 sound channel signals of generation are sent
To digiverter；
Digiverter：DSP 5.1 channel sound signals generated are converted into analog signal and are sent to power amplifier；
Power amplifier：Driving loudspeaker work after power amplification is carried out to the signal received.
Method of this programme by adding sound pick-up for earphone, meanwhile, by sound pick-up acquisition external environment sound with
The sound that the needs of signal input interface input play is mixed, and hybrid technology uses existing Dolby Headphone skills
Art relies on DSP and completes, and can generate the sound of digital 5.1 sound channels, and analog-digital commutator is by the voice data of digital 5.1 sound channels
Driving loudspeaker work after being converted into analog signal, and due to using 5.1 sound channel technologies, user can identify from the sound of earphone
The source direction of sound, reliability higher effectively increase the safety that earphone is used on road.
Filter is additionally provided between the sound pick-up group and analog-digital commutator.
Since sound pick-up needs the whistle sound that the sound acquired is mainly vehicle on road, the frequency of this kind of sound compared with
Therefore height, by being additionally provided with filter between sound pick-up group and analog-digital commutator, can be realized to certain frequency range
Sound is filtered, and reduces noise.
Analog switch is additionally provided between the sound pick-up group and filter.
When using earphone in a safe environment due to the use of person, when needing a safer environment, it can pass through
Analog switch turns off the connection between sound pick-up group and analog-digital commutator, reaches the opinion of shielding external temperature.
The power amplifier includes filter and A class amplification circuits, digiverter pass sequentially through filter and A
Class amplification circuit is connect with loudspeaker.Existing technology generally uses D class amplification circuits, and compared with D class amplification circuits, when to effect
When rate is of less demanding, most of small-signal linear amplifiers can be designed to A classes, i.e. output stage element is always at being connected
Area.Class-a amplifier is generally more preferable than other type linearities, also relatively simple, but efficiency is very low.This class A amplifier A is the most frequently used
In small-signal grade or low power applications.Due to through DSP carry out mixing and Dolby Headphone technical finesses after, in order to make
5.1 sound channel effects are more true to nature, most effective sound can be restored using class-a amplifier.
Compared with prior art, the present invention it has the following advantages and advantages：
1st, a kind of earphone with pickup function of the present invention can hear extraneous sound when being used on road, and safety is more
It is high；
2nd, a kind of earphone with pickup function of the present invention, user can control whether to receive extraneous voice signal, have both existing
There is the advantages of earphone.
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 present system structure diagram.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, 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, a kind of earphone with pickup function of the present invention, headset body and company including carrying even number loudspeaker
The 3.5mm signal input interfaces being connected on earphone, further include the sound pick-up group being arranged in headset body, the sound pick-up group and
Signal input interface is connect by analog-to-digital conversion with TMS320DSP, and DSP passes sequentially through digiverter and power amplifier and loudspeaker
Connection；Method of this programme by adding sound pick-up for earphone, meanwhile, by the sound and letter of the external environment of sound pick-up acquisition
The sound that needs of number input interface input play is mixed, hybrid technology using existing Dolby Headphone technologies,
It relies on DSP to complete, can generate the sound of digital 5.1 sound channels, analog-digital commutator is by the voice data translation of digital 5.1 sound channels
To drive loudspeaker work after analog signal, due to using 5.1 sound channel technologies, user can identify sound from the sound of earphone
Source direction, reliability higher, effectively increase on road use earphone safety.The sound pick-up group and modulus turn
Filter is additionally provided between changing device.Since sound pick-up needs the whistle that the sound acquired is mainly vehicle on road
Sound, the frequency of this kind of sound is higher, therefore, is filled by being additionally provided with high-pass filtering between sound pick-up group and analog-digital commutator
It puts, can realize and the sound of certain frequency range is filtered, reduce noise.It is also set up between the sound pick-up group and filter
There are BL1551 analog switches.When using earphone in a safe environment due to the use of person, when needing a safer environment,
The connection between sound pick-up group and analog-digital commutator can be turned off by analog switch, reaches the opinion of shielding external temperature.
The power amplifier includes filter and A class amplification circuits, and digiverter passes sequentially through filter and A classes amplification electricity
Road is connect with loudspeaker.Existing technology is generally using D class amplification circuits, and compared with D class amplification circuits, when to efficiency requirements not
When high, most of small-signal linear amplifiers can be designed to A classes, i.e. output stage element is always at conducting area.A classes are amplified
Device is generally more preferable than other type linearities, also relatively simple, but efficiency is very low.This class A amplifier A is most commonly used to small-signal grade
Or in low power applications.Due to through DSP carry out mixing and Dolby Headphone technical finesses after, in order to make 5.1 sound channel effects
It is more true to nature, most effective sound can be restored using class-a amplifier.Sound pick-up group：Sound around acquiring, by external sound
Sound data are sent to analog-digital commutator；
Analog-digital commutator：The input sound that the external voice data and signal input interface that sound pick-up group is sent are sent
Data are converted into digital signal and are sent to DSP；
DSP：It is handled according to the signal that Dolby Headphone interface differential techniques receive, 5.1 sound channel signals of generation are sent
To digiverter；
Digiverter：DSP 5.1 channel sound signals generated are converted into analog signal and are sent to power amplifier；
Power amplifier：Driving loudspeaker work after power amplification is carried out to the signal received.
Above-described specific embodiment has carried out the purpose of the present invention, technical solution and advantageous effect further
It is described in detail, it should be understood that the foregoing is merely the specific embodiment of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (4)
1. a kind of earphone with pickup function, headset body and the signal being connected on earphone including carrying even number loudspeaker are defeated
Incoming interface, which is characterized in that further include the sound pick-up group being arranged in headset body, the sound pick-up group and signal input interface
It is connect by analog-to-digital conversion with DSP, DSP passes sequentially through digiverter and power amplifier is connect with loudspeaker；
Sound pick-up group：External voice data are sent to analog-digital commutator by the sound around acquiring；
Analog-digital commutator：The input audio data that the external voice data and signal input interface that sound pick-up group is sent are sent
It is converted into digital signal and is sent to DSP；
DSP：It is handled according to the signal that Dolby Headphone interface differential techniques receive, 5.1 sound channel signals of generation are sent to number
Digital-to-analog conversion apparatus；
Digiverter：DSP 5.1 channel sound signals generated are converted into analog signal and are sent to power amplifier；
Power amplifier：Driving loudspeaker work after power amplification is carried out to the signal received.
2. a kind of earphone with pickup function according to claim 1, which is characterized in that the sound pick-up group and modulus turn
Filter is additionally provided between changing device.
3. a kind of earphone with pickup function according to claim 1, which is characterized in that the sound pick-up group and filtering fill
Analog switch is additionally provided between putting.
4. a kind of earphone with pickup function according to claim 1, which is characterized in that the power amplifier includes filtering
Device and A class amplification circuits, digiverter passes sequentially through filter and A class amplification circuits are connect with loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090302.0A CN108200498A (en) | 2018-01-30 | 2018-01-30 | A kind of earphone with pickup function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090302.0A CN108200498A (en) | 2018-01-30 | 2018-01-30 | A kind of earphone with pickup function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108200498A true CN108200498A (en) | 2018-06-22 |
Family
ID=62591932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810090302.0A Withdrawn CN108200498A (en) | 2018-01-30 | 2018-01-30 | A kind of earphone with pickup function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108200498A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110475174A (en) * | 2019-08-28 | 2019-11-19 | 深圳市索爱创新科技有限公司 | A kind of bluetooth headset based on Internet of Things |
-
2018
- 2018-01-30 CN CN201810090302.0A patent/CN108200498A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110475174A (en) * | 2019-08-28 | 2019-11-19 | 深圳市索爱创新科技有限公司 | A kind of bluetooth headset based on Internet of Things |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180622 |