CN108595143A - Electronic equipment, sound pick-up and signal processing method - Google Patents
Electronic equipment, sound pick-up and signal processing method Download PDFInfo
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- CN108595143A CN108595143A CN201810288376.5A CN201810288376A CN108595143A CN 108595143 A CN108595143 A CN 108595143A CN 201810288376 A CN201810288376 A CN 201810288376A CN 108595143 A CN108595143 A CN 108595143A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
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Abstract
Present disclose provides a kind of electronic equipment, including：Sound pick-up for collection site ambient sound and generates corresponding audio signal；Rear end equipment has audio processing modules and processor, wherein audio processing modules are used to input information entrained in the audio signal of itself by identification by generate operational order, and processor based on operational order for being acted；And frequency band limits module, the audio signal for being generated to sound pick-up carries out frequency band limitation processing, and the audio signal after limit frequency is supplied to rear end equipment.The disclosure additionally provides other two kinds of electronic equipments, a kind of sound pick-up, two kinds of signal processing methods, a kind of non-volatile memory medium and a kind of computer system.
Description
Technical field
This disclosure relates to a kind of electronic equipment, sound pick-up and signal processing method.
Background technology
With the development of science and technology, most of electronic equipment especially intelligent consumption class of electronic devices all carries pickup
Function, so-called pickup function refer to that can receive and identify the function of audio.Such as microphone, a certain band limits can be obtained
Interior audio.Currently, being based on the above-mentioned functional characteristic of pickup function, attacked by audio such as high-frequency ultrasonic or low-frequency ultrasonic waves
Have become a serious safety problem to electronic equipment invade/control/and manipulate.
In view of the above-mentioned problems, the solution that the relevant technologies provide is to add shielding device for electronic equipment or build anti-
Attack context.
However, during realizing disclosure design, inventor has found that at least there are the following problems in the related technology：By
Ultrasonic wave (also known as dolphin sound) can not be heard in the mankind under normal circumstances, thus by being sent out to the electronic equipment with pickup function
High-frequency ultrasonic audio instructions are sent to be invaded, the mankind can not perceive, and since ultrasonic wave transmission power is strong, intuitively not susceptible
Know, thus existing solution adds shielding device or structure attack protection environment expense is too big.
Invention content
An aspect of this disclosure provides a kind of electronic equipment, including：Sound pick-up, simultaneously for collection site ambient sound
Generate corresponding audio signal；Rear end equipment has audio processing modules and processor, wherein above-mentioned audio processing modules are used
Operational order is generated by inputting information entrained in the audio signal of itself by identification, above-mentioned processor is used to be based on
Operational order is stated to be acted；And frequency band limits module, the audio signal for being generated to above-mentioned sound pick-up carries out frequency band limit
System processing, and the audio signal after limit frequency is supplied to above-mentioned rear end equipment.
Optionally, above-mentioned frequency band limitation module is arranged in above-mentioned sound pick-up in either above-mentioned rear end equipment or is arranged
On audio signal transmission channel between above-mentioned sound pick-up and above-mentioned rear end equipment.
Optionally, above-mentioned rear end equipment is additionally operable to send frequency band limitation command signal and/or frequency band limitation function switch refers to
Enable signal；And above-mentioned frequency band limits module, is additionally operable to the frequency for limiting command signal adjustment to audio signal according to above-mentioned frequency band
Band limitation range, and/or open frequency band limitation function according to above-mentioned frequency band limitation function switching instruction signals or close frequency band
Limitation function.
Optionally, the audio signal that above-mentioned frequency band limitation module is used to generate above-mentioned sound pick-up is filtered, with
Filter out high-frequency ultrasonic signal and/or low-frequency ultrasonic waves signal wherein included.
Optionally, above-mentioned frequency band limitation module includes bandpass filter or low-pass filter.
Another aspect of the disclosure provides another electronic equipment, including frequency band limits module, for outer to coming from
The audio signal of portion's sound pick-up carries out frequency band limitation processing；Audio processing modules, for passing through the audio signal after identification limit frequency
In entrained information and generate operational order；And processor, it is acted for being based on aforesaid operations instruction.
Another aspect of the disclosure provides another electronic equipment, including frequency band limits module, for outer to coming from
The audio signal of portion's sound pick-up carries out frequency band limitation processing；Output module, for being corresponded to for the audio signal output after limit frequency
Voice；And/or recording module, for recording for the audio signal after limit frequency.
Another aspect of the disclosure provides a kind of sound pick-up, including：Pickup module is used for collection site ambient sound
And generate corresponding audio signal；And frequency band limits module, the audio signal for generating to above-mentioned pickup module is into line frequency
Band limitation is handled, and the audio signal after limit frequency is supplied to outer-rear end equipment.
Another aspect of the disclosure provides a kind of signal processing method, is applied to electronic equipment, wherein：Above-mentioned electronics
Equipment includes：Sound pick-up, rear end equipment and frequency band limit module, and above-mentioned rear end equipment has audio processing modules and processor；
And the above method includes：By above-mentioned sound pick-up collection site ambient sound and generate corresponding audio signal；By above-mentioned
Frequency band limits module and carries out frequency band limitation processing to above-mentioned audio signal, and exports the audio signal after limit frequency；Make above-mentioned audio
Processing module information entrained in the audio signal after identifying above-mentioned limit frequency by, generates operational order；And make above-mentioned place
Reason device is based on aforesaid operations instruction and is acted.
Another aspect of the disclosure provides another signal processing method, is applied to electronic equipment, wherein：Above-mentioned electricity
Sub- equipment includes：Frequency band limits module, audio processing modules and processor；And the above method includes：It is limited by above-mentioned frequency band
Molding block carries out frequency band limitation processing to the audio signal from external trigger；Above-mentioned audio processing modules are made to pass through identification limit
Entrained information in audio signal after frequency and generate operational order；And make above-mentioned processor based on aforesaid operations instruct into
Action is made.
Another aspect of the disclosure provides a kind of voice system, including：Sound pick-up and electronic equipment, above-mentioned electronics are set
It is standby to include：Frequency band limits module, for carrying out frequency band limitation processing to the audio signal from external trigger；Audio frequency process mould
Block generates operational order for information entrained in the audio signal after identification limits frequency；And processor, it is used for base
It is acted in aforesaid operations instruction.
Another aspect of the disclosure provides another voice system, including：Sound pick-up and electronic equipment, above-mentioned electronics
Equipment includes：Frequency band limits module, for carrying out frequency band limitation processing to the audio signal from external trigger；Export mould
Block, for exporting corresponding voice for the audio signal after limit frequency；And/or recording module, for for the audio after limit frequency
Signal is recorded.
Another aspect of the disclosure provides another voice system, including：Sound pick-up and audio signal can be carried out
It identifies and based on the electronic equipment that recognition result is acted, above-mentioned sound pick-up includes：Pickup module is used for collection site environment
Sound simultaneously generates corresponding audio signal；And frequency band limits module, the audio signal for generating to above-mentioned pickup module into
Line frequency band limitation is handled, and the audio signal after limit frequency is supplied to outer-rear end equipment.
Another aspect of the disclosure provides a kind of signal processing method, is applied to electronic equipment, wherein：Above-mentioned electronics
Equipment includes：Frequency band limits module, output module and/or recording module；And the above method includes：It is limited by above-mentioned frequency band
Module carries out frequency band limitation processing to the audio signal from external trigger；By above-mentioned output module for the sound after limit frequency
Frequency signal exports corresponding voice；And/or it is recorded for the audio signal after limit frequency by above-mentioned recording module.
Another aspect of the disclosure provides another signal processing method, is applied to electronic equipment, wherein：Above-mentioned electricity
Sub- equipment includes：Pickup module and frequency band limit module；And the above method includes：Pass through above-mentioned pickup module collection site ring
Border sound simultaneously generates corresponding audio signal；And module is limited by above-mentioned frequency band, the audio that above-mentioned pickup module generates is believed
Number carry out frequency band limitation processing, and by limit frequency after audio signal be supplied to outer-rear end equipment.
Another aspect of the disclosure provides another signal processing method, is applied to voice system, wherein：Above-mentioned system
System includes sound pick-up and electronic equipment, wherein above-mentioned electronic equipment includes frequency band limitation module, audio processing modules and processing
Device；And the above method includes：By above-mentioned sound pick-up collection site ambient sound and generate corresponding audio signal；By upper
It states frequency band limitation module and frequency band limitation processing is carried out to the audio signal from external trigger；Pass through above-mentioned audio frequency process mould
Block limits information entrained in the audio signal after frequency and generates operational order for identification；And pass through above-mentioned processor base
It is acted in aforesaid operations instruction.
Another aspect of the disclosure provides another signal processing method, is applied to voice system, wherein：Above-mentioned system
System includes sound pick-up and electronic equipment, wherein above-mentioned electronic equipment includes frequency band limitation module, output module and/recording module；
And the above method includes：By above-mentioned sound pick-up collection site ambient sound and generate corresponding audio signal；By above-mentioned
Frequency band limits module and carries out frequency band limitation processing to the audio signal from external trigger；By above-mentioned output module for limit
Audio signal after frequency exports corresponding voice；And/or it is recorded for the audio signal after limit frequency by above-mentioned recording module
Sound.
Another aspect of the disclosure provides another signal processing method, is applied to voice system, wherein：Above-mentioned system
System includes sound pick-up and the electronic equipment that can carry out audio signal identification and be acted based on recognition result, wherein pickup
Device includes pickup module and frequency band limitation module；And the above method includes：Pass through above-mentioned pickup module collection site ambient sound
Sound simultaneously generates corresponding audio signal；Audio signal that module generates above-mentioned pickup module is limited into line frequency by above-mentioned frequency band
Band limitation is handled, and the audio signal after limit frequency is supplied to outer-rear end equipment；And by the identification of above-mentioned electronic equipment
It states information entrained in the audio signal after limit frequency and generates operational order, and acted based on aforesaid operations instruction.
Another aspect of the present disclosure provides a kind of non-volatile memory medium, is stored with computer executable instructions, institute
Instruction is stated when executed for realizing signal processing method as described above.
Another aspect of the present disclosure provides a kind of computer program, and the computer program, which includes that computer is executable, to be referred to
It enables, described instruction is when executed for realizing signal processing method as described above.
Another aspect of the disclosure provides a kind of computer system, including：One or more processors；Computer can
Storage medium is read, for storing one or more programs, wherein when said one or multiple programs are by said one or multiple places
When managing device execution so that said one or multiple processors realize signal processing method as described above.
Description of the drawings
In order to which the disclosure and its advantage is more fully understood, referring now to being described below in conjunction with attached drawing, wherein：
Fig. 1 diagrammatically illustrates the application scenarios of electronic equipment and signal processing method according to the embodiment of the present disclosure；
Fig. 2 diagrammatically illustrates the block diagram of the electronic equipment according to the embodiment of the present disclosure；
Fig. 3 diagrammatically illustrates the schematic diagram of the electronic equipment according to the embodiment of the present disclosure；
Fig. 4 diagrammatically illustrates the block diagram of the electronic equipment according to another embodiment of the disclosure；
Fig. 5 diagrammatically illustrates the block diagram of the electronic equipment according to another embodiment of the disclosure；
Fig. 6 diagrammatically illustrates the block diagram of the sound pick-up according to the embodiment of the present disclosure；
Fig. 7 diagrammatically illustrates the flow chart of the signal processing method according to the embodiment of the present disclosure；
Fig. 8 diagrammatically illustrates the flow chart of the signal processing method according to another embodiment of the disclosure；And
Fig. 9 diagrammatically illustrates the frame of the computer system for being adapted for carrying out signal processing method according to the embodiment of the present disclosure
Figure.
Specific implementation mode
Hereinafter, will be described with reference to the accompanying drawings embodiment of the disclosure.However, it should be understood that these descriptions are only exemplary
, and it is not intended to limit the scope of the present disclosure.In the following detailed description, it for ease of explaining, elaborates many specific thin
Section is to provide the comprehensive understanding to the embodiment of the present disclosure.It may be evident, however, that one or more embodiments are not having these specific thin
It can also be carried out in the case of section.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid
Unnecessarily obscure the concept of the disclosure.
Term as used herein is not intended to limit the disclosure just for the sake of description specific embodiment.It uses herein
The terms "include", "comprise" etc. show the presence of the feature, step, operation and/or component, but it is not excluded that in the presence of
Or other one or more features of addition, step, operation or component.
There are all terms (including technical and scientific term) as used herein those skilled in the art to be generally understood
Meaning, unless otherwise defined.It should be noted that term used herein should be interpreted that with consistent with the context of this specification
Meaning, without should by idealization or it is excessively mechanical in a manner of explain.
It, in general should be according to this using " in A, B and C etc. at least one " such statement is similar to
Field technology personnel are generally understood the meaning of the statement to make an explanation (for example, " with system at least one in A, B and C "
Should include but not limited to individually with A, individually with B, individually with C, with A and B, with A and C, with B and C, and/or
System etc. with A, B, C).Using " in A, B or C etc. at least one " such statement is similar to, it is general come
Say be generally understood the meaning of the statement to make an explanation (for example, " having in A, B or C at least according to those skilled in the art
One system " should include but not limited to individually with A, individually with B, individually with C, with A and B, with A and C, have
B and C, and/or system etc. with A, B, C).It should also be understood by those skilled in the art that substantially arbitrarily indicating two or more
The adversative conjunction and/or phrase of optional project shall be construed as either in specification, claims or attached drawing
It gives including one of these projects, the possibility of these projects either one or two projects.For example, phrase " A or B " should
It is understood to include the possibility of " A " or " B " or " A and B ".
Shown in the drawings of some block diagrams and/or flow chart.It should be understood that some sides in block diagram and/or flow chart
Frame or combinations thereof can be realized by computer program instructions.These computer program instructions can be supplied to all-purpose computer,
The processor of special purpose computer or other programmable data processing units, to which these instructions can be with when being executed by the processor
Create the device for realizing function/operation illustrated in these block diagrams and/or flow chart.
Therefore, the technology of the disclosure can be realized in the form of hardware and/or software (including firmware, microcode etc.).Separately
Outside, the technology of the disclosure can take the form of the computer program product on the computer-readable medium for being stored with instruction, should
Computer program product uses for instruction execution system or instruction execution system is combined to use.In the context of the disclosure
In, computer-readable medium can be the arbitrary medium can include, store, transmitting, propagating or transmitting instruction.For example, calculating
Machine readable medium can include but is not limited to electricity, magnetic, optical, electromagnetic, infrared or semiconductor system, device, device or propagation medium.
The specific example of computer-readable medium includes：Magnetic memory apparatus, such as tape or hard disk (HDD)；Light storage device, such as CD
(CD-ROM)；Memory, such as random access memory (RAM) or flash memory；And/or wire/wireless communication link.
Embodiment of the disclosure provides a kind of electronic equipment, including：Sound pick-up for collection site ambient sound and produces
Raw corresponding audio signal；Rear end equipment has audio processing modules and processor, wherein audio processing modules are for passing through
Identification inputs information entrained in the audio signal of itself and generates operational order, and processor is used to carry out based on operational order
Action；And frequency band limits module, the audio signal for being generated to sound pick-up carries out frequency band limitation processing, and will be after limit frequency
Audio signal is supplied to rear end equipment.
Fig. 1 diagrammatically illustrates the application scenarios of electronic equipment and signal processing method according to the embodiment of the present disclosure.It needs
It should be noted that being only the example for the scene that can apply the embodiment of the present disclosure shown in Fig. 1, to help those skilled in the art to manage
The technology contents of the disclosure are solved, but are not meant to that the embodiment of the present disclosure may not be usable for other equipment, system, environment or field
Scape.
As shown in Figure 1, may include sonic generator 101 in the application scenarios of the embodiment of the present disclosure and have the function of pickup
Electronic equipment (such as laptop) 102, wherein the sonic generator 101 can be used for send sound wave, the electronic equipment
102 can acquire sound wave and execute respective handling operation.When sonic generator 101 sends sound wave to electronic equipment 102, due to
May include the high-frequency ultrasonic and/or low-frequency ultrasonic waves for attacking electronic equipment 102 in the sound wave, therefore, in electronics
After equipment 102 acquires the sound wave and carries out respective handling, it is more likely that the safety of itself can be seriously threatened.Existing solution
It is to add shielding device or structure attack protection environment for electronic equipment 102.But since the mankind under normal circumstances can not hear
Ultrasonic wave (also known as dolphin sound), thus carried out by sending high-frequency ultrasonic audio instructions to the electronic equipment with pickup function
Invasion, the mankind can not perceive, and since ultrasonic wave transmission power is strong, intuitively be not easy to perceive, thus existing solution is
It adds shielding device or structure attack protection environment expense is too big.
In consideration of it, present disclose provides a kind of electronic equipment, which may include sound pick-up, be used for collection site
Ambient sound simultaneously generates corresponding audio signal；Rear end equipment has audio processing modules and processor, wherein audio frequency process
Module is used to input information entrained in the audio signal of itself by identification by generate operational order, and processor is for being based on
Operational order is acted；And frequency band limits module, the audio signal for being generated to sound pick-up carries out frequency band limitation processing,
And the audio signal after limit frequency is supplied to rear end equipment.The electronic equipment provided by the embodiment of the present disclosure can utilize frequency
The interference that useless frequency band signals are effectively filtered out with limitation module overcomes addition shielding device and takes precautions against bad or structure attack protection
The too big defect of environment expense.
Fig. 2 diagrammatically illustrates the block diagram of the electronic equipment according to the embodiment of the present disclosure.
As shown in Fig. 2, the electronic equipment 200 may include sound pick-up 210, frequency band limitation module 220 and rear end equipment
230, which may include audio processing modules 231 and processor 232.Wherein：
Sound pick-up 210 is for collection site ambient sound and generates corresponding audio signal.
Rear end equipment 230 has audio processing modules 231 and processor 232, wherein audio processing modules 231 are for leading to
It crosses identification to input information entrained in the audio signal of itself and generate operational order, processor 232 is used to refer to based on operation
Order is acted.
Frequency band limitation module 220 is used to carry out frequency band limitation processing to the audio signal that sound pick-up 210 generates, and will limit frequency
Audio signal afterwards is supplied to rear end equipment 230.
In embodiment of the disclosure, electronic equipment 200 can include but is not limited to mobile phone, tablet computer, notebook electricity
Brain and other equipment etc. with pickup function.
In accordance with an embodiment of the present disclosure, sound pick-up 210 may include microphone, and sound pick-up 210 can be digital pickup
Device can also be simulation sound pick-up.When sound pick-up 210 is digital sound pick-up, the audio signal of output is digital signal；
When sound pick-up 210 is simulation sound pick-up, the audio signal of output is analog signal.
In accordance with an embodiment of the present disclosure, rear end equipment 230 may include audio processing modules 231 and processor 232.Its
In, audio processing modules 231 can have the function of identifying audio signal, for example, sound card.Specifically, the audio processing modules
231 can identify the information entrained by inputting in the audio signal of its own, for example, the voltage institute of the audio signal can be identified
The information of carrying can also identify the information entrained by the phase of the audio signal, can also identify the frequency of the audio signal
Entrained information.Further, audio processing modules 231 can generate corresponding operational order based on the information identified.
In accordance with an embodiment of the present disclosure, processor 232 can be acted according to the operational order.For example, processor 232
Upper operation has payment program, which is to remit money to particular contact, then processor 232 can open the payment program simultaneously
It executes to remit money to particular contact and operate.
In accordance with an embodiment of the present disclosure, frequency band limitation module 220 can be that the frequency band of digital form limits module, can also
Module is limited for the frequency band of analog form, for example, frequency band limitation module 220 is filter, then the filter can be number filter
Wave device, or analog filter.When the frequency band that frequency band limitation module 220 is digital form limits module, output
It is digital signal to limit the audio signal after frequency；When the frequency band that frequency band limitation module 220 is analog form limits module, output
Limit frequency after audio signal be analog signal.
In accordance with an embodiment of the present disclosure, frequency band limitation module 220 can have frequency limiting function, to filter out the letter of useless frequency range
Number.Specifically, frequency band limitation module 220 can carry out frequency band limitation processing to the audio signal that sound pick-up 210 generates, and export
The audio signal after frequency is limited, and the audio signal after the limit frequency can be supplied to rear end equipment 230.In the rear end equipment 230
Audio processing modules 231 can identify the information entrained by the audio signal after the limit frequency and be generated based on recognition result corresponding
Operational order, the processor 232 of rear end equipment 230 can accordingly be acted based on the operational order.
By embodiment of the disclosure, the limit frequency that module is limited by frequency band acts on, and has effectively filtered out useless frequency band signals
Interference, not only overcome addition shielding device and take precautions against the bad or too big defect of structure attack protection environment expense, also improve
The audio signal of the currently active frequency range is to limit the discrimination of the audio signal after frequency.
As a kind of optional embodiment, frequency band limitation module 220 can be arranged in sound pick-up 210 or rear end equipment
In 230, or on the audio signal transmission channel that is arranged between sound pick-up 210 and rear end equipment 230.
In embodiment of the disclosure, the installation position of frequency band limitation module 220 may include a variety of, for example, can set
It sets in sound pick-up 210, can also be arranged in rear end equipment 230, can also be arranged in sound pick-up 210 and rear end equipment 230
Between audio signal transmission channel on.However, it is desirable to explanation, the installation position of frequency band limitation module 220 needs to meet：It should
Frequency band limitation module 220 can receive the audio signal of the generation of sound pick-up 210, to carry out frequency band limitation to the audio signal, and
Audio signal after limit frequency can be supplied to rear end equipment 230.
For example, it is assumed that frequency band limitation module 220 is arranged in sound pick-up 210, then the audio of 210 final output of sound pick-up is believed
Number be limited the audio signal after frequency, and the audio signal after the limit frequency can be provided to rear end equipment 230.
By embodiment of the disclosure, user can be arranged frequency band by the above various ways according to actual demand and limit mould
The position of block improves the flexibility of design.
As a kind of optional embodiment, rear end equipment 230 can be also used for sending frequency band limitation command signal and/or frequency
Band limitation function switching instruction signals；Frequency band limitation module 220 can be also used for limiting command signal adjustment to sound according to frequency band
The frequency band of frequency signal limits range, and/or opens frequency band limitation function or pass according to frequency band limitation function switching instruction signals
Close frequency band limitation function.
Since the demand that different rear end equipments 230 limits frequency band the frequency band limitation of module 220 may be different, this
Disclosed embodiment dynamic regulation frequency band can limit the frequency band limitation range of module 220 and/or be turned on and off according to demand
Frequency band limitation function.
In embodiment of the disclosure, it is assumed that it is human language (frequency band model that rear end equipment 230, which needs the audio object identified,
Enclose for 300Hz~3.4KHz), then rear end equipment 230 can limit module 220 to frequency band by processor 232 and send frequency band limit
Command signal processed, so that frequency band limitation module 220 can limit command signal according to the frequency band limits range tune by frequency band
Whole is 300Hz~3.4KHz.
It should be noted that when frequency band limitation module 220 receives multiple frequency bands and limits command signal, it can be according to this
The frequency band limitation command signal adjustment frequency band of highest priority limits range in multiple frequency band limitation command signals.
In accordance with an embodiment of the present disclosure, user can also decide whether that frequency band limits work(according to actual demand or scene
Energy.For example, when electronic equipment 200 is in home, user can be by input equipment (such as keyboard) to electronic equipment
200 send the instruction for closing frequency band limitation function, and then processor 232 can limit module 220 according to instruction to frequency band
Frequency band limitation function switching instruction signals are sent, to close the frequency band limitation function that the frequency band limits module 220.In electronic equipment
200 be in relatively relatively hazardous position when, user can by input equipment (such as keyboard) to electronic equipment 200 transmission be used for
The instruction of frequency band limitation function is opened, and then processor 232 can send frequency band limitation according to instruction to frequency band limitation module 220
Functional switch command signal, to open the frequency band limitation function that the frequency band limits module 220.
In accordance with an embodiment of the present disclosure, processor 232 can also limit module 220 to frequency band and send frequency band limitation instruction letter
Number and frequency band limitation function switching instruction signals.For example, it is assumed that the frequency band limitation function of frequency band limitation module 220 is in and closes shape
State, when needing the frequency acceptance band ranging from signal of 600Hz~4KHz, processor 232 can limit mould to frequency band according to demand
Block 220 sends the frequency band limitation function switching instruction signals for opening frequency band limitation function, and for frequency band to be limited model
Enclose the frequency band limitation command signal for being adjusted to 600Hz~4KHz.
By embodiment of the disclosure, the frequency band limit that frequency band limits module can be adjusted according to the actual demand dynamic of user
Range processed, and/or dynamic are turned on and off frequency band limitation function, not only increase the flexibility of design, also improve user's
Experience effect.
As a kind of optional embodiment, frequency band limits the audio signal that module 220 can be used for generating sound pick-up 210
It is filtered, to filter out high-frequency ultrasonic signal and/or low-frequency ultrasonic waves signal wherein included.
In embodiment of the disclosure, frequency band limitation module 220 can be used for filtering out high-frequency ultrasonic signal or low frequency
Ultrasonic signal or high-frequency ultrasonic signal and low-frequency ultrasonic waves signal, with prevent criminal by audio attack come
Invade electronic equipment.But since most of audio attacks the high-frequency ultrasonic signal that can not be heard using the mankind, because
This embodiment of the disclosure is preferably the high-frequency ultrasonic signal filtered out in audio signal.
By embodiment of the disclosure, by filtering out high-frequency ultrasonic signal and/or low-frequency ultrasonic waves in audio signal
Signal can be effective against audio attack, to ensure the safety of electronic equipment；Meanwhile the interference by filtering out garbage signal, it can
To effectively improve the recognition efficiency to the currently active frequency range.
As a kind of optional embodiment, it may include bandpass filter or low-pass filter that frequency band, which limits module 220,.
In embodiment of the disclosure, when it is high-frequency ultrasonic signal that user, which needs the audio signal filtered out, frequency band limit
Molding block 220 may include bandpass filter or low-pass filter, wherein the maximum limit frequency point of bandpass filter should be small
It should also be less than the minimum of high-frequency ultrasonic signal in the limitation frequency point of the minimum frequency point of high-frequency ultrasonic signal, low-pass filter
Frequency point.
In accordance with an embodiment of the present disclosure, when it is low-frequency ultrasonic waves signal that user, which needs the audio signal filtered out, frequency band limit
Molding block 220 may include bandpass filter or high-pass filter, wherein the minimum limitation frequency point of bandpass filter should be big
In the highest frequency point of low-frequency ultrasonic waves signal, the limitation frequency point of high-pass filter should also be more than the highest of low-frequency ultrasonic waves signal
Frequency point.
In accordance with an embodiment of the present disclosure, in order to preferably filter out garbage signal, (including high-frequency ultrasonic signal and low frequency are super
Acoustic signals), it can be preferably bandpass filter that frequency band, which limits module 220, i.e. the maximum limit frequency point of bandpass filter should
Minimum limitation frequency point less than the minimum frequency point of high-frequency ultrasonic signal, and bandpass filter should be more than low-frequency ultrasonic waves signal
Highest frequency point.
By embodiment of the disclosure, the corresponding filter of signal behavior filtered out as needed not only can effectively be prevented
Only audio is attacked, and can also improve the accuracy for filtering out garbage signal.
Fig. 3 diagrammatically illustrates the schematic diagram of the electronic equipment according to the embodiment of the present disclosure.
As shown in figure 3, electronic equipment 300 can be one embodiment of above-mentioned electronic equipment 200, the electronic equipment 300
It can include but is not limited to mobile phone, tablet computer, laptop and other equipment etc. with pickup function.
In embodiment of the disclosure, electronic equipment 300 may include sound pick-up 310, frequency band limitation module 320 and rear end
Equipment 330, wherein rear end equipment 330 may include audio processing modules 331 and backend application unit 332.
In accordance with an embodiment of the present disclosure, frequency band limit can be added in the audio pickup processing subsystem of electronic equipment 300
Molding block 320 (such as filter), which limits module 320 can be to audio that sound pick-up 310 (such as microphone) transmits
Signal by backend application unit 332 (such as processor) frequency band limitation requirement be filtered (such as, it is desirable that the audio object of identification
It is human language, then can frequency band be limited range is adjusted to 300Hz~3.4KHz), then the audio signal after limit frequency is carried again
Supply audio frequency processing module 331 (such as sound card), the audio processing modules 331 can identify entrained by the audio signal after limiting frequency
Information and generate operational order (include but not limited to audio instructions), and be reported to backend application unit 332, backend application unit
332 can be acted according to the operational order.In addition, backend application unit 332 can also be limited according to actual demand to frequency band
Molding block 320 sends frequency band limitation command signal to adjust frequency band limitation range and/or frequency band limitation function switching instruction signals
To be turned on and off frequency band limitation function.
By embodiment of the disclosure, module is limited by using controlled frequency band is added on voice-frequency channel, filters out audio
High-frequency ultrasonic signal in signal and/or low-frequency ultrasonic waves signal may be implemented to protect the purpose of electronic equipment not under fire.
Simultaneously as frequency band limitation module can effectively filter the audio signal interference of other unrelated frequency ranges, and then can effectively carry
The corresponding discrimination of audio signal of high the currently active frequency range.In addition, the frequency band limit of the frequency band limitation module of the embodiment of the present disclosure
Range (also known as limiting frequency point) processed can dynamically be turned on and off according to actual demand dynamic regulation, frequency band limitation function, pole
The big flexibility for improving implementation.
Present disclose provides a kind of voice system, which may include：Sound pick-up and electronic equipment, wherein this reality
Electronic equipment and its function and structure feature applied in example will be described hereinafter.
In accordance with an embodiment of the present disclosure, electronic equipment may include：Frequency band limits module, for coming from external trigger
Audio signal carry out frequency band limitation processing；Audio processing modules, for by entrained in the audio signal after identification limit frequency
Information and generate operational order；Processor is acted for being based on operational order.
In embodiment of the disclosure, sound pick-up can be used for collection site ambient sound and generate corresponding audio letter
Number, electronic equipment can receive the audio signal and execute corresponding operating.Module is limited since frequency band being arranged on electronic equipment, it should
Frequency band, which limits module, to carry out frequency band limitation processing to audio signal, to filter out garbage signal or have aggressive letter
Number, so the electronic equipment can have the performance for preventing audio from attacking.Since voice system includes sound pick-up and above-mentioned function
With the electronic equipment of structure, therefore, which also has the performance for preventing audio from attacking.
Fig. 4 diagrammatically illustrates the block diagram of the electronic equipment according to another embodiment of the disclosure.
As shown in figure 4, the electronic equipment 400 may include frequency band limitation module 410, audio processing modules 420 and processing
Device 430.Wherein：
Frequency band limits module 410 and is used to carry out frequency band limitation processing to the audio signal from external trigger.
Audio processing modules 420, which are used to generate operation by identifying information entrained in the audio signal after limiting frequency, to be referred to
It enables.
Processor 430 based on operational order for being acted.
In embodiment of the disclosure, electronic equipment 400 can be the rear end equipment not comprising pickup function, such as service
Device.But the electronic equipment 400 can receive the audio signal from external pick up facility, for example, it is assumed that pick up facility is ear
Machine, the microphone on the earphone can convert sound waves into audio signal, and after inserting an earphone into server, server can connect
Receive the audio signal from earphone.
It in accordance with an embodiment of the present disclosure, should after electronic equipment 400 receives the audio signal from external pick up facility
Frequency band, which limits module 410, to carry out frequency band limitation processing to the audio signal, to filter out garbage signal, and can will be after limit frequency
Audio signal be sent to audio processing modules 420.Wherein, which can have identification audio signal
Function, for example, sound card.Specifically, which can identify letter entrained in the audio signal after limiting frequency
Breath, for example, the information entrained by the voltage of the audio signal after the limit frequency can be identified, can also identify the audio after the limit frequency
Information entrained by the phase of signal can also identify the information entrained by the frequency of the audio signal after the limit frequency.In turn, should
Audio processing modules 420 can generate corresponding operational order based on the information identified.
In accordance with an embodiment of the present disclosure, processor 430 can be acted according to the operational order.For example, the operation refers to
The instruction for input " unlocking pin " is enabled, then processor can execute the operation of input " unlocking pin ".Due to processor at this time
430 receive operational orders be without aggressive instruction, so its execute operation be also it is comparatively safe.
By embodiment of the disclosure, high-frequency ultrasonic signal and/or low is filtered out by using addition frequency band limitation module
Frequency ultrasonic signal can not only overcome addition shielding device to take precautions against bad or structure attack protection ambient environment expense too big
Defect can also be realized and protect the purpose of electronic equipment not under fire.Simultaneously as frequency band limitation module can effectively filter nothing
The audio signal interference for other frequency ranges closed, and then the corresponding discrimination of audio signal that the currently active frequency range can be effectively improved.
Present disclose provides another voice system, which may include：Sound pick-up and electronic equipment, wherein originally
Electronic equipment and its function and structure feature in embodiment will be described hereinafter.
In accordance with an embodiment of the present disclosure, electronic equipment may include：Frequency band limits module, for coming from external trigger
Audio signal carry out frequency band limitation processing；Output module, for exporting corresponding voice for the audio signal after limit frequency；
And/or recording module, for recording for the audio signal after limit frequency.
It should be noted that the electronic equipment of the embodiment of the present disclosure may include having frequency band limitation module and output module,
Such as audiomonitor；Can also include frequency band limitation module, output module and recording module, such as the prison with sound-recording function
Listen equipment；Can also include frequency band limitation module and recording module, such as recorder.Wherein, above-mentioned output module can be
Loud speaker, above-mentioned recording module can be recording chip.
It in embodiment of the disclosure, can be in electricity in order to make above-mentioned voice system have the function of preventing audio from attacking
Frequency band is added in sub- equipment and limits module, and frequency band is carried out to the audio signal that sound pick-up transmits to limit module by frequency band
Limitation is handled, and filters out garbage signal or has aggressive signal, and then can ensure the safety of voice system.
Include below sound pick-up and electronic equipment with voice system, and electronic equipment includes frequency band limitation module, output mould
For block and recording module, expansion is introduced.
Fig. 5 diagrammatically illustrates the block diagram of the electronic equipment according to another embodiment of the disclosure.
As shown in figure 5, the electronic equipment 500 may include frequency band limitation module 510, output module 520 and recording module
530.Wherein：
Frequency band limits module 510 and is used to carry out frequency band limitation processing to the audio signal from external trigger.
Output module 520 is used to export corresponding voice for the audio signal after limit frequency.
Recording module 530 is used to record for the audio signal after limit frequency.
In embodiment of the disclosure, voice system may include sound pick-up and electronic equipment 500, the electronic equipment 500
Can be the rear end equipment not comprising pickup function, such as the audiomonitor with sound-recording function, and the voice system can answer
In the scene for needing to monitor, for example, interrogating a prisoner.
Specifically, it in snoop procedure, by sound pick-up collection site ambient sound (such as convict's confession) and can produce
Raw corresponding audio signal, electronic equipment 500 can receive the audio signal and carry out respective handling, the corresponding language of final output
Sound is to realize monitor function.Further, it monitors and is disturbed in order to prevent, frequency band limitation mould can be added in electronic equipment 500
Block 510, which, which limits module 510, can carry out the audio signal from sound pick-up frequency band limitation processing, useless to filter out
Signal simultaneously exports the audio signal after limit frequency, at this point, the output module 520 (for example, loud speaker) in electronic equipment 500 can be with needle
Corresponding voice is exported to the audio signal after the limit frequency, so as to effectively prevent monitoring failure caused by external interference.
In addition, electronic equipment 500 can also be recorded using recording module 530 (such as recording chip) for the audio signal after limit frequency
Sound.
By embodiment of the disclosure, module is limited by frequency band and filters out high-frequency ultrasonic signal and/or low-frequency ultrasonic waves
Signal may be implemented to protect the purpose of electronic equipment not under fire.Simultaneously as frequency band limitation module can effectively filter other
The audio signal of unrelated frequency range is interfered, and then the corresponding discrimination of audio signal that can effectively improve the currently active frequency range.
Present disclose provides another voice system, which may include：Sound pick-up and audio letter can be carried out
Number identification and based on the electronic equipment that recognition result is acted, wherein the sound pick-up in the present embodiment and its function and structure are special
Point will be described hereinafter.
In accordance with an embodiment of the present disclosure, which may include pickup module, for collection site ambient sound and produce
Raw corresponding audio signal；Frequency band limits module, and the audio signal for being generated to pickup module carries out frequency band limitation processing, and
Audio signal after limit frequency is supplied to outer-rear end equipment.
In embodiment of the disclosure, the performance for preventing audio from attacking to make the voice system have, can be in pickup
Frequency band is added in device and limits module, and the audio signal to being generated by pickup module carries out limit frequency, to filter out in the audio signal
The garbage signal of carrying has aggressive signal.Further, it is possible to be the signal of safety by the audio signal after limit frequency
The electronic equipment that can be carried out audio signal identification and be acted based on recognition result is sent to, so as to ensure the electronics
The safety of equipment, and then can ensure the harm that entire voice system avoids audio from attacking.
Fig. 6 diagrammatically illustrates the block diagram of the sound pick-up according to the embodiment of the present disclosure.
As shown in fig. 6, the sound pick-up 600 may include pickup module 610 and frequency band limitation module 620.Wherein：
Pickup module 610 is for collection site ambient sound and generates corresponding audio signal.
Frequency band limitation module 620 is used to carry out frequency band limitation processing to the audio signal that pickup module 610 generates, and will limit
Audio signal after frequency is supplied to outer-rear end equipment.
In embodiment of the disclosure, sound pick-up 600 may include microphone.In the sound pick-up 600, frequency can be added
Band limitation module 620, frequency band limitation module 620 can receive the audio of 610 collection site ambient sound of pickup module generation
Signal, and frequency band limitation processing is carried out to the audio signal, the audio signal after frequency is limited with output.
In accordance with an embodiment of the present disclosure, sound pick-up 600 can be used in combination with outer-rear end equipment, such as will be after limit frequency
Audio signal is supplied to outer-rear end equipment.
For example, sound pick-up 600 is earphone, outer-rear end equipment is server, then can insert an earphone into server, with
Audio signal after limit frequency can be supplied to server, and then server can be effectively prevent to be attacked by audio, for clothes
The safety of business device provides reliable guarantee.
By embodiment of the disclosure, the sound pick-up that module is limited by that will be provided with frequency band is combined with outer-rear end equipment
It uses, the signal that the audio signal after limit frequency is safety can be supplied to outer-rear end equipment, and then can effectively prevent not
Method molecule utilizes audio attack invasion outer-rear end equipment.
The disclosure additionally provides a kind of signal processing method, is applied to electronic equipment, wherein：The electronic equipment can wrap
It includes：Sound pick-up, rear end equipment and frequency band limit module, and rear end equipment has audio processing modules and processor；The signal processing
Method may include：By sound pick-up collection site ambient sound and generate corresponding audio signal；Module is limited by frequency band
Frequency band limitation processing is carried out to audio signal, and exports the audio signal after limit frequency；Audio processing modules are made to pass through identification limit frequency
Entrained information in audio signal afterwards and generate operational order；And processor is made to be acted based on operational order.
Fig. 7 diagrammatically illustrates the flow chart of the signal processing method according to the embodiment of the present disclosure.
As shown in fig. 7, the signal processing method may include operation S701~S704.
In operation S701, by sound pick-up collection site ambient sound and corresponding audio signal is generated.
Operation S702, by frequency band limit module to audio signal carry out frequency band limitation processing, and export limit frequency after
Audio signal.
In operation S703, audio processing modules is made to be generated by identifying information entrained in the audio signal after limiting frequency
Operational order.
In operation S704, processor is made to be acted based on operational order.
By embodiment of the disclosure, the limit frequency that module is limited by frequency band acts on, and has effectively filtered out useless frequency band signals
Interference, not only overcome addition shielding device and take precautions against the bad or too big defect of structure attack protection ambient environment expense, also
The audio signal for improving the currently active frequency range limits the discrimination of the audio signal after frequency.
The disclosure additionally provides a kind of signal processing method, is applied to electronic equipment, wherein：The electronic equipment can wrap
It includes：Frequency band limits module, audio processing modules and processor；The signal processing method may include：Module is limited by frequency band
Frequency band limitation processing is carried out to the audio signal from external trigger；Audio processing modules are made to pass through the audio after identification limit frequency
Entrained information in signal and generate operational order；And processor is made to be acted based on operational order.
Fig. 8 diagrammatically illustrates the flow chart of the signal processing method according to another embodiment of the disclosure.
As shown in figure 8, the signal processing method may include operation S801~S803.
In operation S801, module is limited by frequency band, the audio signal from external trigger is carried out at frequency band limitation
Reason.
In operation S802, audio processing modules is made to be generated by identifying information entrained in the audio signal after limiting frequency
Operational order.
In operation S803, processor is made to be acted based on operational order.
By embodiment of the disclosure, high-frequency ultrasonic signal and/or low is filtered out by using addition frequency band limitation module
Frequency ultrasonic signal can not only overcome addition shielding device to take precautions against bad or structure attack protection ambient environment expense too big
Defect can also be realized and protect the purpose of electronic equipment not under fire.Simultaneously as frequency band limitation module can effectively filter nothing
The audio signal interference for other frequency ranges closed, and then the corresponding discrimination of audio signal that the currently active frequency range can be effectively improved.
It should be noted that the frequency band limitation module in the embodiment of the present disclosure can meet as described below：
In accordance with an embodiment of the present disclosure, frequency band limitation module can limit instruction dynamic regulation frequency band according to frequency band and limit model
It encloses, frequency band limitation function can also be turned on or off according to frequency band limitation function switching instruction signals.
In accordance with an embodiment of the present disclosure, frequency band limitation module can be that the frequency band of digital form limits module, or
The frequency band of analog form limits module, for example, frequency band limitation module is filter, then the filter can be digital filter,
It may be analog filter.When the frequency band that frequency band limitation module is digital form limits module, after the limit frequency of output
Audio signal is digital signal；When the frequency band that frequency band limitation module is analog form limits module, after the limit frequency of output
Audio signal is analog signal.
In accordance with an embodiment of the present disclosure, when it is high-frequency ultrasonic signal that user, which needs the audio signal filtered out, frequency band limit
Molding block may include bandpass filter or low-pass filter, wherein the maximum limit frequency point of bandpass filter should be less than
The minimum frequency point of high-frequency ultrasonic signal, the limitation frequency point of low-pass filter should also be less than the lowest frequency of high-frequency ultrasonic signal
Point.When it is low-frequency ultrasonic waves signal that user, which needs the audio signal filtered out, it may include bandpass filter that frequency band, which limits module,
Or high-pass filter, wherein the minimum limitation frequency point of bandpass filter should be more than the highest frequency point of low-frequency ultrasonic waves signal,
The limitation frequency point of high-pass filter should also be more than the highest frequency point of low-frequency ultrasonic waves signal.
In accordance with an embodiment of the present disclosure, in order to preferably filter out garbage signal, (including high-frequency ultrasonic signal and low frequency are super
Acoustic signals), it can be preferably bandpass filter that frequency band, which limits module, i.e. the maximum limit frequency point of bandpass filter should be less than
The minimum frequency point of high-frequency ultrasonic signal, and the minimum limitation frequency point of bandpass filter should be more than low-frequency ultrasonic waves signal most
High frequency points.
Fig. 9 diagrammatically illustrates the frame of the computer system for being adapted for carrying out signal processing method according to the embodiment of the present disclosure
Figure.Computer system shown in Fig. 9 is only an example, should not bring and appoint to the function and use scope of the embodiment of the present disclosure
What is limited.
As shown in figure 9, computer system 900 include sound pick-up 910, frequency band processing module 920, audio processing modules 930,
Processor 940 and computer readable storage medium 950.The computer system 900 can execute the side according to the embodiment of the present disclosure
Method.
Specifically, sound pick-up 910 can be used for collection site ambient sound and generate corresponding audio signal.Frequency band processing
Module 920 can carry out frequency band limitation processing to audio signal, and export the audio signal after limit frequency.Audio processing modules 930
Operational order can be generated by identifying information entrained in the audio signal after limiting frequency, processor 940 can be based on behaviour
Make instruction to be acted.
Processor 940 for example may include general purpose microprocessor, instruction set processor and/or related chip group and/or specially
With microprocessor (for example, application-specific integrated circuit (ASIC)), etc..Processor 940 can also include the plate for caching purposes
Carry memory.Processor 940 can be performed for the single place of the different actions of the method flow according to the embodiment of the present disclosure
Manage unit either multiple processing units.
Computer readable storage medium 950, such as can include, store, transmitting, propagating or transmitting appointing for instruction
Meaning medium.For example, readable storage medium storing program for executing can include but is not limited to electricity, magnetic, optical, electromagnetic, infrared or semiconductor system, device,
Device or propagation medium.The specific example of readable storage medium storing program for executing includes：Magnetic memory apparatus, such as tape or hard disk (HDD)；Optical storage
Device, such as CD (CD-ROM)；Memory, such as random access memory (RAM) or flash memory；And/or wire/wireless communication chain
Road.
Computer readable storage medium 950 may include computer program 951, which may include generation
Code/computer executable instructions make processor 940 execute according to the embodiment of the present disclosure when being executed by processor 940
Method or its any deformation.
Computer program 951 can be configured with such as computer program generation including computer program module/unit
Code.For example, in the exemplary embodiment, the code in computer program 951 may include one or more program modules, such as wrap
Include module 951A, module 951B ....It should be noted that the dividing mode and number of module are not fixed, art technology
Personnel can be combined according to actual conditions using suitable program module or program module, when the combination of these program modules is handled
When device 940 executes so that processor 940 can be executed according to the method for the embodiment of the present disclosure or its any deformation.
The disclosure additionally provides a kind of computer-readable medium, which can be retouched in above-described embodiment
Included in the equipment/device/system stated；Can also be individualism, and without be incorporated the equipment/device/system in.On
It states computer-readable medium and carries one or more program, when said one or multiple programs are performed, realize：It is logical
It crosses sound pick-up collection site ambient sound and generates corresponding audio signal；Module is limited to audio signal into line frequency by frequency band
Band limitation is handled, and exports the audio signal after limit frequency；Institute in audio signal after making audio processing modules pass through identification limit frequency
The information of carrying and generate operational order；And processor is made to be acted based on operational order.
In accordance with an embodiment of the present disclosure, computer-readable medium can be that computer-readable signal media or computer can
Storage medium either the two is read arbitrarily to combine.Computer readable storage medium for example can be --- but it is unlimited
In --- electricity, system, device or the device of magnetic, optical, electromagnetic, infrared ray or semiconductor, or the arbitrary above combination.It calculates
The more specific example of machine readable storage medium storing program for executing can include but is not limited to：Being electrically connected, be portable with one or more conducting wires
Formula computer disk, hard disk, random access storage device (RAM), read-only memory (ROM), erasable programmable read only memory
(EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-ROM), light storage device, magnetic memory device or
The above-mentioned any appropriate combination of person.In the disclosure, can be any include computer readable storage medium or storage program
Tangible medium, the program can be commanded execution system, device either device use or it is in connection.And in this public affairs
In opening, computer-readable signal media may include in a base band or as the data-signal that a carrier wave part is propagated,
In carry computer-readable program code.Diversified forms may be used in the data-signal of this propagation, including but not limited to
Electromagnetic signal, optical signal or above-mentioned any appropriate combination.Computer-readable signal media can also be computer-readable
Any computer-readable medium other than storage medium, the computer-readable medium can send, propagate or transmit for by
Instruction execution system, device either device use or program in connection.The journey for including on computer-readable medium
Sequence code can transmit with any suitable medium, including but not limited to：Wirelessly, wired, optical cable, radiofrequency signal etc., or
Above-mentioned any appropriate combination.
Flow chart in attached drawing and block diagram, it is illustrated that according to the system of the various embodiments of the disclosure, method and computer journey
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part for a part for one module, program segment, or code of table, above-mentioned module, program segment, or code includes one or more
Executable instruction for implementing the specified logical function.It should also be noted that in some implementations as replacements, institute in box
The function of mark can also occur in a different order than that indicated in the drawings.For example, two boxes succeedingly indicated are practical
On can be basically executed in parallel, they can also be executed in the opposite order sometimes, this is depended on the functions involved.Also it wants
It is noted that the combination of each box in block diagram or flow chart and the box in block diagram or flow chart, can use and execute rule
The dedicated hardware based systems of fixed functions or operations is realized, or can use the group of specialized hardware and computer instruction
It closes to realize.
It will be understood by those skilled in the art that the feature described in each embodiment and/or claim of the disclosure can
To carry out multiple combinations or/or combination, even if such combination or combination are not expressly recited in the disclosure.Particularly, exist
In the case of not departing from disclosure spirit or teaching, the feature described in each embodiment and/or claim of the disclosure can
To carry out multiple combinations and/or combination.All these combinations and/or combination each fall within the scope of the present disclosure.
Although the disclosure, art technology has shown and described with reference to the certain exemplary embodiments of the disclosure
Personnel it should be understood that in the case of the spirit and scope of the present disclosure limited without departing substantially from the following claims and their equivalents,
A variety of changes in form and details can be carried out to the disclosure.Therefore, the scope of the present disclosure should not necessarily be limited by above-described embodiment,
But should be not only determined by appended claims, also it is defined by the equivalent of appended claims.
Claims (10)
1. a kind of electronic equipment, including：
Sound pick-up for collection site ambient sound and generates corresponding audio signal；
Rear end equipment, with audio processing modules and processor, wherein the audio processing modules are used for by identifying input certainly
Entrained information in the audio signal of body and generate operational order, the processor is used for based on the operational order into action
Make；And
Frequency band limits module, and the audio signal for being generated to the sound pick-up carries out frequency band limitation processing, and will be after limit frequency
Audio signal is supplied to the rear end equipment.
2. electronic equipment according to claim 1, wherein frequency band limitation module be arranged in the sound pick-up or
In the rear end equipment, or on the audio signal transmission channel that is arranged between the sound pick-up and the rear end equipment.
3. electronic equipment according to claim 1, wherein：
The rear end equipment is additionally operable to send frequency band limitation command signal and/or frequency band limitation function switching instruction signals；And
The frequency band limits module, is additionally operable to the frequency band limitation model for limiting command signal adjustment to audio signal according to the frequency band
It encloses, and/or opens frequency band limitation function according to the frequency band limitation function switching instruction signals or close frequency band limitation function.
4. electronic equipment according to claim 1, wherein：
The audio signal that the frequency band limitation module is used to generate the sound pick-up is filtered, and wherein includes to filter out
High-frequency ultrasonic signal and/or low-frequency ultrasonic waves signal.
5. electronic equipment according to any one of claim 1 to 3, wherein：
The frequency band limitation module includes bandpass filter or low-pass filter.
6. a kind of electronic equipment, including：
Frequency band limits module, for carrying out frequency band limitation processing to the audio signal from external trigger；
Audio processing modules generate operational order for information entrained in the audio signal after identification limits frequency；With
And
Processor is acted for being based on the operational order.
7. a kind of electronic equipment, including：
Frequency band limits module, for carrying out frequency band limitation processing to the audio signal from external trigger；
Output module, for exporting corresponding voice for the audio signal after limit frequency；And/or
Recording module, for recording for the audio signal after limit frequency.
8. a kind of sound pick-up, including：
Pickup module for collection site ambient sound and generates corresponding audio signal；And
Frequency band limits module, and the audio signal for being generated to the pickup module carries out frequency band limitation processing, and will be after limit frequency
Audio signal be supplied to outer-rear end equipment.
9. a kind of signal processing method is applied to electronic equipment, wherein：
The electronic equipment includes：Sound pick-up, rear end equipment and frequency band limit module, and the rear end equipment has audio frequency process mould
Block and processor；And
The method includes：
By the sound pick-up collection site ambient sound and generate corresponding audio signal；
Module is limited by the frequency band, frequency band limitation processing is carried out to the audio signal, and export the audio letter after limit frequency
Number；
Operation is generated by make information entrained in audio signal of the audio processing modules after identifying the limit frequency to refer to
It enables；And
The processor is set to be acted based on the operational order.
10. a kind of signal processing method is applied to electronic equipment, wherein：
The electronic equipment includes：Frequency band limits module, audio processing modules and processor；And
The method includes：
Module is limited by the frequency band, and frequency band limitation processing is carried out to the audio signal from external trigger；
The audio processing modules are made to generate operational order by identifying information entrained in the audio signal after limiting frequency；With
And
The processor is set to be acted based on the operational order.
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