CN110381415A - A kind of loudspeaker, information processing unit and method - Google Patents
A kind of loudspeaker, information processing unit and method Download PDFInfo
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- CN110381415A CN110381415A CN201910796358.2A CN201910796358A CN110381415A CN 110381415 A CN110381415 A CN 110381415A CN 201910796358 A CN201910796358 A CN 201910796358A CN 110381415 A CN110381415 A CN 110381415A
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- 230000010365 information processing Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000005236 sound signal Effects 0.000 claims description 121
- 230000003321 amplification Effects 0.000 claims description 52
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 52
- 238000013507 mapping Methods 0.000 claims description 14
- 230000003111 delayed effect Effects 0.000 claims description 11
- 230000001934 delay Effects 0.000 claims description 8
- 230000006870 function Effects 0.000 claims description 5
- 238000003672 processing method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
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- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
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- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The embodiment of the invention provides a kind of loudspeaker, information processing unit and methods, the loudspeaker includes coil, wherein, the coil is electrically connected with multiple incoming ends, the loudspeaker provides different impedances by the incoming end, so that the sound exported in predeterminated frequency range has better audio relative to other frequencies.Loudspeaker in the present invention is by being equipped with multiple incoming ends for coil, different impedances can be thus provided, and then better sound audio can be provided in broad frequency range, therefore lesser amount of loudspeaker is set in an electronic equipment, such as setting 2 is only needed, the perfect bandwidth requirements for showing various different applications of energy are not only easy for installation, the inner space for saving electronic equipment, also saves cost.
Description
Technical field
This application involves electronic technology field, in particular to a kind of loudspeaker, information processing unit and method.
Background technique
The loudspeaker used on existing notebook or mobile phone, because being limited by size, bandwidth variation range is relatively narrow,
If thinking the perfect bandwidth requirements for showing various different applications, such as voice, musical instrument, the details in film highlighted, currently used side
Case is that different frequency band sounding is each responsible for using multiple groups loudspeaker.That is, being needed in the prior art by least
Four loudspeakers could complete the sounding of different frequency bands, not only occupy the system space of complete machine, but also increase whole system
The cost of system, and frequency point of two groups of loudspeakers near part-frequency point can also have interaction distortion.
Summary of the invention
In view of the above-mentioned problems in the prior art, the application provides a kind of information processing method and information processing apparatus
It sets.
To solve the above problems, technical solution provided by the present application is:
First aspect present invention provides a kind of loudspeaker, including coil, wherein
The coil is electrically connected with multiple incoming ends, and the loudspeaker provides different impedances by the incoming end, so that
Obtaining the sound exported in predeterminated frequency range has better audio relative to other frequencies.
Second aspect of the present invention provides a kind of information processing unit, including loudspeaker as described above；
Further include,
Power amplification controller receives audio signal to provide power amplifier signal, and determines the loudspeaker based on audio signal
Impedance value；
Wherein, the loudspeaker is electrically connected with the power amplification controller, receives the power amplifier signal, and pass through the power amplifier
The impedance value that controller determines exports sound.
Preferably, the audio signal includes multiple audio sections with different frequency range；The power amplification controller configuration
Are as follows:
The audio signal is received, according to the frequency values of different frequency range, determines the impedance value of the loudspeaker；
Each access way of the incoming end of the loudspeaker is determined based on the impedance value.
Preferably, the power amplification controller is configured that
Audio signal is delayed after reception preset time period, based on the frequency values for delaying audio signal, in advance really
The fixed loudspeaker delays impedance value, and with when being played to this and delaying audio signal, to delay impedance value true in advance based on described
The access way of the incoming end of the fixed loudspeaker.
Preferably, the power amplification controller is further configured to, impedance value is determined based on default mapping table, according to
The impedance value determines the access way of the incoming end；
The mapping relations of the mapping table record different frequency range and different impedance values.
Preferably, the information processing unit further includes memory module, it is electrically connected, is used for the power amplification controller
Store the mapping table.
Preferably, the information processing unit further includes overcurrent protection module, the overcurrent protection module respectively with institute
It states power amplification controller and the loudspeaker is electrically connected, the working current value of coil described in the overcurrent protection module real-time reception,
When the working current value exceeds threshold value, the overcurrent protection module notifies the power amplification controller, the power amplification controller tune
The operating voltage value of the whole coil.
Third aspect present invention provides a kind of information processing method, the method includes,
Audio signal is received to provide power amplifier signal, and impedance value is determined based on audio signal；
Based on the impedance value and the power amplifier signal, so that the sound exported in predeterminated frequency range is relative to it
Its frequency has better audio.
Preferably, the audio signal includes multiple audio sections with different frequency range；
The reception audio signal determines impedance value based on audio signal to provide power amplifier signal, including,
The audio signal is received, according to the frequency values of different frequency range, determines the impedance value.
Preferably, the reception audio signal to be to provide power amplifier signal, and determines impedance value based on audio signal, wrap
It includes,
Audio signal is delayed after reception preset time period, based on the frequency values for delaying audio signal, in advance really
Surely impedance value is delayed, to determine access way in advance based on the impedance value of delaying when being played to this and delaying audio signal.
Compared with prior art, the beneficial effects of the present application are as follows:
Loudspeaker in the present invention can provide different impedances by the way that coil is equipped with multiple incoming ends, in turn
Better sound audio can be provided in broad frequency range, therefore lesser amount of loudspeaking is set in an electronic equipment
The perfect bandwidth requirements for showing various different applications of device (such as only needing setting 2) energy, it is not only easy for installation, save electronics
The inner space of equipment, also saves cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of coil used in loudspeaker provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of information processing unit provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of information processing method provided in an embodiment of the present invention；
Wherein, 1 in Fig. 1,2,3,4,5 indicate the different incoming ends on the coil.
Specific embodiment
In the following, specific embodiments of the present invention are described in detail in conjunction with attached drawing, but not as the limitation of the invention.
It should be understood that various modifications can be made to disclosed embodiments.Therefore, description above should not regard
To limit, and only as the example of embodiment.Those skilled in the art will expect within the scope and spirit of this
Other modifications.
The attached drawing being included in the description and forms part of the description shows embodiment of the disclosure, and with it is upper
What face provided is used to explain the disclosure together to substantially description and the detailed description given below to embodiment of the disclosure
Principle.
It is of the invention by the description of the preferred form with reference to the accompanying drawings to the embodiment for being given as non-limiting example
These and other characteristic will become apparent.
Although being also understood that invention has been described referring to some specific examples, those skilled in the art
Member realizes many other equivalents of the invention in which can determine, they have feature as claimed in claim and therefore all
In the protection scope defined by whereby.
When read in conjunction with the accompanying drawings, in view of following detailed description, above and other aspect, the feature and advantage of the disclosure will become
It is more readily apparent.
The specific embodiment of the disclosure is described hereinafter with reference to attached drawing；It will be appreciated, however, that the disclosed embodiments are only
Various ways implementation can be used in the example of the disclosure.Known and/or duplicate function and structure and be not described in detail to avoid
Unnecessary or extra details makes the disclosure smudgy.Therefore, specific structural and functionality disclosed herein is thin
Section is not intended to restrictions, but as just the basis of claim and representative basis be used to instructing those skilled in the art with
Substantially any appropriate detailed construction diversely uses the disclosure.
This specification can be used phrase " in one embodiment ", " in another embodiment ", " in another embodiment
In " or " in other embodiments ", it can be referred to one or more of the identical or different embodiment according to the disclosure.
In the following, the embodiment of the present invention is described in detail in conjunction with attached drawing,
First embodiment of the invention provides a kind of loudspeaker, including coil, wherein
The coil is electrically connected with multiple incoming ends, and the loudspeaker provides different impedances by the incoming end, so that
Obtaining the sound exported in predeterminated frequency range has better audio relative to other frequencies.
As shown in Figure 1, for the structural schematic diagram of coil used in loudspeaker provided by the invention, it can from figure
Out, which has multiple incoming ends, and the different incoming ends by connecting the coil can provide different impedance values, example
Such as, continue as shown in Figure 1, the impedance value that the coil provides is R1 by connection incoming end 1 and 2；By connecting incoming end 1
With 3, the impedance value that the coil provides is R2；By connecting incoming end 1 and 4, the impedance value that the coil provides is R3；Pass through
Incoming end 1 and 5 is connected, the impedance value that the coil provides is R4；By connecting incoming end 2 and 3, the impedance that the coil provides
Value is R5；By connecting incoming end 2 and 4, the impedance value that the coil provides is R6；By connecting incoming end 2 and 5, the line
The impedance value that circle provides is R7；By connecting incoming end 3 and 4, the impedance value that the coil provides is R8；By connecting incoming end
3 and 5, the impedance value that the coil provides is R9；By connecting incoming end 4 and 5, the impedance value that the coil provides is R10；This
It invents only to be exemplary in the above-described embodiment provided and shows the coil with 5 incoming ends, can at most provide 10
A impedance value, but can not constitute for restriction of the invention, that is to say, that the line in the loudspeaker provided by the invention
Circle, is not particularly limited the number of specific incoming end possessed by coil, for example, can be 3 incoming ends, 4 accesses
End, 5 incoming ends, 6 incoming ends etc., can specifically be selected according to the needs of users.
In the present invention, a certain impedance value in very wide frequency range can sounding, the only audio of sounding
Different, only some corresponding frequency range has better audio to the impedance value of a certain determination.For example, when in loudspeaker
Coil directly hinder R be 4 Ω when, the frequency range that it can make a sound may cover low frequency range to all models of high frequency region
It encloses, but it is demonstrated experimentally that the sound that only low frequency range issues has better sound when it is 4 Ω that the coil in loudspeaker, which directly hinders R,
Effect.Therefore " by difference impedance value provided by the coil can make the sound exported in predeterminated frequency range relative to
Other frequencies have better audio " concrete meaning be, different impedance values correspond to different band limits, for a certain
For impedance value, when only exporting sound in corresponding band limits, have compared to other band limits better
Audio.
In the present invention, it can to export in predeterminated frequency range by difference impedance value provided by the coil
Sound has better audio relative to other frequencies.Specifically, according to the working principle of loudspeaker, the thrust F=of system
BiL, wherein B is magnetic field strength, and L is active coil length, electric current in i coil, i=U/Z, wherein U is the work electricity of coil
Pressure, Z is coil impedance；Z=R+j ω L, wherein R is that coil directly hinders, and j is a constant.
For loudspeaker in the prior art, after product approval, active coil length L, coil directly hinder R and magnetic field is strong
Spending B is definite value, for example, it is usually 4 Ω or 8 Ω that common coil, which directly hinders R,.According to formula Z=R+j ω L, work as active coil
Length L, coil directly hinder R be definite value when, coil impedance Z is also a definite value；Further according to formula i=U/Z, in coil electric current i with
U be changed, but the variation of U is very small, it may also be said to it is substantially unchanged, so electric current i in coil is resulted in change
It measures smaller；Finally further according to formula F=BiL, since active coil length L and magnetic field strength B is definite value, electric current i in coil
Substantially certain value, therefore, the thrust F of system is also generally certain value.That is, existing loudspeaker, once product
There will be certain bandwidth after sizing, the sound only issued within the scope of the bandwidth just has relatively good audio.For example,
When it is 4 Ω that the coil in loudspeaker, which directly hinders R, corresponding bass 1000-2000Hz, that is to say, that when sound is in 1000-
When in this frequency range of 2000Hz, the sound of sending just has relatively good audio；For another example the coil in loudspeaker is straight
When resistance R is 8 Ω, corresponding high audio 10000-20000Hz, that is to say, that when sound is in this frequency range of 10000-20000Hz
When interior, the sound of sending just has relatively good audio.Show in different audio ranges if an electronic equipment wants perfection
Sound, it is necessary to which multiple groups loudspeaker is set to complete.Specifically, such as two groups be can be set, each group all includes two loudspeakings
Device, it is 4 Ω that the coil of first group of loudspeaker, which directly hinders R, for showing low frequency range sound；It is 8 that the coil of second group of loudspeaker, which directly hinders R,
Ω, for showing high frequency region sound；In this way, when being played to the sound of low frequency range, being by first group when playing a song
Loudspeaker plays out, and is to be played out by second group of loudspeaker, in this way, just can make when being played to the sound of high frequency region
The sound of low frequency range and the sound of high frequency region are all able to perfection and show.Further, if it is desired to so that the sound of different frequency range
It is all able to perfection to show, the loudspeaker of this more multiple groups need to set, for example, can be set 4 groups, the coil of first group of loudspeaker
Straight resistance R is 4 Ω, for showing low frequency range sound；It is 5 Ω that the coil of second group of loudspeaker, which directly hinders R, for showing middle low frequency range sound
Sound；It is 6 Ω that the coil of third group loudspeaker, which directly hinders R, for showing medium-high frequency area sound；The coil of 4th group of loudspeaker directly hinders R
Pass through setting multiple groups loudspeaker, it will be able to the finer and smoother sound for making different frequency range for showing high frequency region sound for 8 Ω
Sound is all able to be showed.By above-mentioned narration can be seen that electronic equipment in the prior art be exactly pass through setting two groups, very
Realize that the sound of different frequency range has better audio to being the loudspeaker of more multiple groups.But it is tired that this not only results in installation
Difficulty, the problem of largely occupying electronic equipment internal space, due also to having used loudspeaking too much in an electronic equipment
Device and the increase for causing human cost and material resources cost.
And in scheme provided by the invention, since the coil of loudspeaker has multiple incoming ends, the loudspeaker passes through
The incoming end provides different impedances, that is to say, that one group of loudspeaker being only used only in the present invention can realize existing skill
The effect of several groups of loudspeakers is provided in art, so that the sound exported in predeterminated frequency range all has relative to other frequencies
Better audio.Thus, it is only required to which one group of loudspeaker provided in an embodiment of the present invention to be arranged in the electronic device to be realized
The sound of different frequency range has better audio, to can not only save the inner space of electronic equipment, while can also have
Imitate save the cost.
As shown in Fig. 2, second embodiment of the invention provides a kind of information processing unit, including loudspeaking as described above
Device；
Further include,
Power amplification controller receives audio signal to provide power amplifier signal, and determines the loudspeaker based on audio signal
Impedance value；
Wherein, the loudspeaker is electrically connected with the power amplification controller, receives the power amplifier signal, and pass through the power amplifier
The impedance value that controller determines exports sound.
In the present embodiment, the power amplification controller is for receiving audio signal, and converts audio signals into power amplifier letter
Number exported, at the same can also based on provided audio signal come it is determined that the loudspeaker of access impedance value, and control
The coil of loudspeaker is with impedance value access；The loudspeaker receives the power amplifier signal, and true by the power amplification controller
Fixed impedance value exports sound.
In a specific embodiment, the coil of the loudspeaker can provide R1, R2, R3 and R4 totally four different impedances
Value, wherein R1 corresponds to the sound of low frequency range, and R2 corresponds to the sound of middle low frequency range, and R3 corresponds to the sound in medium-high frequency area, R4
Sound corresponding to high frequency region.When playing a song, the power amplification controller receives the audio signal in the song, meeting
Based on the audio signal it is determined that access loudspeaker impedance value and control the coil of loudspeaker with the impedance value access, example
Such as, the sound for belonging to medium-high frequency is judged by the audio signal, then can determine whether out that the impedance value for the loudspeaker that should be accessed is R3,
And the coil of loudspeaker is controlled with R3 impedance value access；The power amplification controller is receiving the audio signal in the song
Meanwhile the audio signal can be also converted into power amplifier signal and exported, the loudspeaker receives the power amplifier signal, and passes through
The impedance value R3 that the power amplification controller determines exports sound, that is to say, that loudspeaker provided by the invention can be based on and this
The matched effect of song frequency carries out sound output, so that reaching better sound effect.
When playing a film, the power amplification controller receives the audio signal in the film, can be based on the audio
Signal it is determined that access loudspeaker impedance value and control the coil of loudspeaker with the impedance value access, for example, by the sound
Frequency signal judges the sound for belonging to middle low frequency, then can determine whether out that the impedance value for the loudspeaker that should be accessed is R2, and control and raise
The coil of sound device is with R2 impedance value access；The power amplification controller is while receiving the audio signal in the film, also
The audio signal can be converted into power amplifier signal to export, the loudspeaker receives the power amplifier signal, and passes through the function
Put the impedance value R2 output sound that controller determines, that is to say, that loudspeaker provided by the invention can be based on and the film sound
The matched effect of voice frequency carries out sound output, so that reaching better sound effect.
In another embodiment provided by the invention, the audio signal includes multiple audios with different frequency range
Section；The power amplification controller is configured that
The audio signal is received, according to the frequency values of different frequency range, determines the impedance value of the loudspeaker；
Each access way of the incoming end of the loudspeaker is determined based on the impedance value.
In the present embodiment, the coil of the loudspeaker can provide R1, R2, R3 and R4 totally four different impedance values,
Middle R1 corresponds to the sound of low frequency range, and R2 corresponds to the sound of middle low frequency range, and R3 corresponds to the sound in medium-high frequency area, and R4 corresponds to
The sound of high frequency region.When to be played a song, the audio signal of the song may respectively correspond different frequency bands, example
Such as, which is total to four minutes, wherein first minute audio signal belongs to middle low frequency range, second minute audio signal
Belong to low frequency range, the audio signal of third minute belongs to high frequency region, and the audio signal of four minutes belongs to medium-high frequency area, starts to broadcast
Sing song when, power amplification controller receives audio signal, and according to the frequency values of different frequency range, determines the impedance of the loudspeaker
Value, for example, the audio signal belongs to middle low frequency range when being played to first minute, the power amplification controller receives the audio
Signal, and determine that the impedance value of loudspeaker coil is R2, and control the coil of loudspeaker with impedance value access, the power amplifier
The audio signal while first minute audio signal, can be also converted into power amplifier signal in receiving the song by controller
It is exported, the loudspeaker receives the power amplifier signal, and the impedance value R2 output sound determined by the power amplification controller
Sound；When being played to second minute, the audio signal belongs to low frequency range, and the power amplification controller receives the audio signal, and
The impedance value for determining loudspeaker coil is R1, and controls the coil of loudspeaker with impedance value access, the power amplification controller
In receiving the song while second minute audio signal, it is defeated which can be also converted into the progress of power amplifier signal
Out, the loudspeaker receives the power amplifier signal, and exports sound by the impedance value R1 that the power amplification controller determines；When broadcasting
When being put into third minute, the audio signal belongs to high frequency region, and the power amplification controller receives the audio signal, and determines loudspeaking
The impedance value of device coil is R4, and controls the coil of loudspeaker with impedance value access, and the power amplification controller is receiving
In the song while audio signal of third minute, which can be also converted into power amplifier signal and exported, it is described
Loudspeaker receives the power amplifier signal, and exports sound by the impedance value R4 that the power amplification controller determines；When being played to
When four minutes, the audio signal belongs to medium-high frequency area, and the power amplification controller receives the audio signal, and determines in loudspeaker
The impedance value of coil is R3, and controls the coil of loudspeaker with impedance value access, and the power amplification controller is receiving the song
While the audio signal of Qu Zhong four minutes, which can be also converted into power amplifier signal and exported, the loudspeaking
Device receives the power amplifier signal, and exports sound by the impedance value R3 that the power amplification controller determines, so just plays out
Entire song.
In another embodiment provided by the invention, the power amplification controller is configured that
Audio signal is delayed after reception preset time period, based on the frequency values for delaying audio signal, in advance really
The fixed loudspeaker delays impedance value, and with when being played to this and delaying audio signal, to delay impedance value true in advance based on described
The access way of the incoming end of the fixed loudspeaker.
In the present embodiment, the audio for delaying a preset time that audio signal refers to currently playing audio signal is delayed
Signal is a relative concept, is to delay audio signal relative to one of currently playing audio signal, belongs to and do not broadcast also
The audio signal put, for example, when playing a song, the current positive audio signal for playing first minute, at this point, the power amplifier
Audio signal is delayed after one preset time period of the audio signal that controller reception is currently just playing, for example, the power amplifier
Controller receives 02 seconds first minute audio signals；Or the current positive audio signal for playing second minute, the power amplifier control
Device processed receives 03 seconds second minute audio signals；That is, the power amplification controller is always received than currently playing sound
Frequency signal delays the audio signal of a preset time period, meanwhile, 2 seconds or 3 seconds here are exactly a preset time period, this
It invents in the embodiment provided, there is no any restrictions for the specific duration of preset time period, user can be according to the needs of use
It is configured, for example, the preset time period can be 1s, 4s, 5s etc..
The power amplification controller receive it is described delay audio signal after, based on the frequency for delaying audio signal
Value, predefine the loudspeaker delays impedance value, to delay impedance based on described when being played to this and delaying audio signal
Value determines the access way of the incoming end of the loudspeaker in advance.For example, in one embodiment, when playing a song,
The current positive audio signal for playing first minute, the power amplification controller receive 03 seconds first minute and delay audio signal, meeting
Audio signal is delayed based on this come it is determined that the coil of the loudspeaker of access delays impedance value, for example, described delay audio
Signal belongs to medium-high frequency area, and the power amplification controller receives this and delays audio signal, and determines the impedance value of loudspeaker coil
For R3, when the playback of songs delays audio signal described in, the coil of the power amplification controller control loudspeaker is with the resistance of R3
Anti- value access.In embodiment provided by the invention, by make the power amplification controller receive in advance described in delay audio signal can
With it is determining in advance with it is described delay the corresponding coil of audio signal delay impedance value, to believe when being played to the audio of delaying
Number when, can rapidly by it is previously determined it is good delay impedance value access, with the fluency for ensuring to play and good audio quality.
In other embodiments provided by the invention, the power amplification controller is further configured to, and is closed based on default mapping
It is that table determines impedance value, the access way of the incoming end is determined according to the impedance value；
The mapping relations of the mapping table record different frequency range and different impedance values.
In the present embodiment, the audio signal that the power amplification controller receives has one with the impedance value that should be accessed
Corresponding relationship.For example, can have the corresponding relationship of audio signal shown in table 1 and impedance value, when audio signal belongs to low frequency
Qu Shi, the corresponding access impedance value of coil are R1；When audio signal belongs to middle low frequency range, the corresponding access impedance value of coil is
R2；When audio signal belongs to medium-high frequency area, the corresponding access impedance value of coil is R3；When audio signal belongs to high frequency region,
The corresponding access impedance value of coil is R4.It will be appreciated by those skilled in the art that table 1 has only been illustratively described audio signal
Frequency values and the corresponding relationship of impedance value that should access, but limitation of the invention can not be constituted, in a particular application,
User can carry out the frequency values of audio signal and the corresponding relationship for the impedance value that should be accessed according to specific actual needs
It is set or adjusted.
The corresponding relationship of table 1 audio signal and impedance value
| Audio signal | Impedance value |
| Low frequency range | R1 |
| Middle low frequency range | R2 |
| Medium-high frequency area | R3 |
| High frequency region | R4 |
In other embodiments provided by the invention, the information processing unit further includes memory module, with the function
Controller electrical connection is put, for storing the mapping table.In the present embodiment, the frequency values of audio signal can will be described
It is stored in memory module with the mapping table of the corresponding relationship for the impedance value that should be accessed, for example, above-mentioned table 1 can be stored in
The memory module can be by the audio signal received and storage with when the power amplification controller receives audio signal
Mapping table in the memory module is compared, to obtain impedance value corresponding with the audio signal.
In one embodiment provided by the invention, the information processing unit further includes overcurrent protection module, the mistake
Stream protective module is electrically connected with the power amplification controller and the loudspeaker respectively, described in the overcurrent protection module real-time reception
The working current value of coil, when the working current value exceeds threshold value, the overcurrent protection module notifies the power amplification controller,
The power amplification controller adjusts the operating voltage value of the coil.In the present embodiment, the overcurrent protection module real-time reception
The working current value of the coil, when the working current value exceeds threshold value, the overcurrent protection module notifies the power amplifier control
Device processed, the power amplification controller adjust the operating voltage value of the coil.For example, when the overcurrent protection module detects coil
Working current value when exceeding threshold value, the power amplification controller can reduce the operating voltage value of the coil, reduce the line
The operating voltage value of circle is that can reduce the size of sound, that is, reduces the loudness of sound, and will not influence sending sound
The frequency of sound and audio etc. in embodiment provided by the invention, carry out coil described in real-time detection by using overcurrent protection module
Working current value avoid the coil from being burned out.
Based on the same inventive concept, as shown in figure 3, third embodiment of the invention provides a kind of information processing method, institute
The method of stating includes,
Audio signal is received to provide power amplifier signal, and impedance value is determined based on audio signal；
Based on the impedance value and the power amplifier signal, so that the sound exported in predeterminated frequency range is relative to it
Its frequency has better audio.
In one embodiment provided by the invention, the audio signal includes multiple audio sections with different frequency range；
The reception audio signal determines impedance value based on audio signal to provide power amplifier signal, including,
The audio signal is received, according to the frequency values of different frequency range, determines the impedance value.
In another embodiment provided by the invention, the reception audio signal is based on sound to provide power amplifier signal
Frequency signal determines impedance value, including,
Audio signal is delayed after reception preset time period, based on the frequency values for delaying audio signal, in advance really
Surely impedance value is delayed, to determine access way in advance based on the impedance value of delaying when being played to this and delaying audio signal.
Above embodiments are only the exemplary embodiment of the application, are not used in limitation the application, the protection scope of the application
It is defined by the claims.Those skilled in the art can make respectively the application in the essence and protection scope of the application
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as falling within the scope of protection of this application.
Claims (10)
1. a kind of loudspeaker, including coil, wherein
The coil is electrically connected with multiple incoming ends, and the loudspeaker provides different impedances by the incoming end, so that
The sound exported in predeterminated frequency range has better audio relative to other frequencies.
2. a kind of information processing unit, including loudspeaker according to claim 1；
Further include,
Power amplification controller receives audio signal to provide power amplifier signal, and the resistance of the loudspeaker is determined based on audio signal
Anti- value；
Wherein, the loudspeaker is electrically connected with the power amplification controller, receives the power amplifier signal, and control by the power amplifier
The impedance value that device determines exports sound.
3. the apparatus of claim 2, the audio signal includes multiple audio sections with different frequency range；The function
Controller is put to be configured that
The audio signal is received, according to the frequency values of different frequency range, determines the impedance value of the loudspeaker；
Each access way of the incoming end of the loudspeaker is determined based on the impedance value.
4. the apparatus of claim 2, the power amplification controller is configured that
Audio signal is delayed after reception preset time period, based on the frequency values for delaying audio signal, predefines institute
That states loudspeaker delays impedance value, to determine institute in advance based on the impedance value of delaying when being played to this and delaying audio signal
State the access way of the incoming end of loudspeaker.
5. device according to claim 3, the power amplification controller is further configured to, true based on default mapping table
Constant impedance value determines the access way of the incoming end according to the impedance value；
The mapping relations of the mapping table record different frequency range and different impedance values.
6. device according to claim 5, the information processing unit further includes memory module, is controlled with the power amplifier
Device electrical connection, for storing the mapping table.
7. the apparatus of claim 2, the information processing unit further includes overcurrent protection module, the overcurrent protection
Module is electrically connected with the power amplification controller and the loudspeaker respectively, coil described in the overcurrent protection module real-time reception
Working current value, when the working current value exceeds threshold value, the overcurrent protection module notifies the power amplification controller, the function
Put the operating voltage value that controller adjusts the coil.
8. a kind of information processing method, the method includes,
Audio signal is received to provide power amplifier signal, and impedance value is determined based on audio signal；
Based on the impedance value and the power amplifier signal, so that the sound exported in predeterminated frequency range is relative to other frequencies
Rate has better audio.
9. according to the method described in claim 8, the audio signal includes multiple audio sections with different frequency range；
The reception audio signal determines impedance value based on audio signal to provide power amplifier signal, including,
The audio signal is received, according to the frequency values of different frequency range, determines the impedance value.
10. according to the method described in claim 8, the reception audio signal to be to provide power amplifier signal, and being based on audio signal
Determine impedance value, including,
Audio signal is delayed after reception preset time period, based on the frequency values for delaying audio signal, predefines and prolongs
Impedance value afterwards, to determine access way in advance based on the impedance value of delaying when being played to this and delaying audio signal.
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| CN110381415B (en) | 2021-06-15 |
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