CN106535042A - Volume control method, device and system for vehicle-mounted loudspeaker - Google Patents
Volume control method, device and system for vehicle-mounted loudspeaker Download PDFInfo
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- CN106535042A CN106535042A CN201610970269.1A CN201610970269A CN106535042A CN 106535042 A CN106535042 A CN 106535042A CN 201610970269 A CN201610970269 A CN 201610970269A CN 106535042 A CN106535042 A CN 106535042A
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- vehicle
- volume
- value
- mounted loudspeaker
- sound
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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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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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
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
Abstract
The invention discloses a volume control method, device and system for a vehicle-mounted loudspeaker. The method comprises the following steps: acquiring sound signals picked up by vehicle-mounted microphones respectively; and adjusting output volumes of the vehicle-mounted loudspeakers which are distributed at different places in a carriage at different amplitudes according to different influence weights of the vehicle-mounted microphones on the vehicle-mounted loudspeakers, wherein the influence weights are determined according to the distances between the vehicle-mounted microphones and the vehicle-mounted loudspeakers. Through adoption of the embodiment of the invention, the output volumes of the loudspeakers which are distributed at different places in the carriage can be adjusted at different amplitudes according to sound source positions of the sound signals acquired by the microphones, so that the user experience is improved effectively.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of method for controlling volume of vehicle-mounted loudspeaker, device and it is
System.
Background technology
As the species of the vehicle electronic device of configuration in the stable development of automobile industry, automobile is increasingly enriched, such as car
Navigator, vehicle-mounted caution device and vehicle-mounted multimedia entertainment equipment etc. are carried, the said equipment sends navigation by vehicle-mounted loudspeaker
Prompt tone, moving car alarm sound and multimedia recreation sound, this allows one to more facilitate, drives a vehicle safely and comfortably.So
And, in some cases, the output volume of vehicle-mounted loudspeaker is excessive, can bring inconvenience, needs people manual in traditional approach
The output volume of speaker is adjusted, operation is more bothered, and easily disperse the attention of driver, increase the danger of driving
Property.
The appearance of the sound volume control device of vehicle-mounted loudspeaker solves the problems referred to above to a certain extent, can be according to compartment
The situation of change of the acoustical signal that interior mike is collected automatically regulates the output volume of vehicle-mounted loudspeaker.However, existing skill
Art uses the control method of single solution for diverse problems, i.e. according to the acoustical signal for collecting by the output sound of all speakers in compartment
Amount carries out the regulation of same magnitude, it is impossible to is adjusted according to the sound source position difference amplitude of the acoustical signal for collecting and is distributed in car
The output volume of railway carriage or compartment speaker everywhere, Consumer's Experience be not good.
The content of the invention
The technical problem to be solved is, there is provided a kind of method for controlling volume of vehicle-mounted loudspeaker, device and
System, adjusts to the sound source position difference amplitude of the acoustical signal that can be collected according to mike and is distributed in compartment raising everywhere
The output volume of sound device, is effectively improved Consumer's Experience.
In order to solve above-mentioned technical problem, the one side of the embodiment of the present invention provides a kind of volume control of vehicle-mounted loudspeaker
Method processed, methods described include：
S11, the acoustical signal that N number of car microphone is picked up is obtained respectively；
S12, the volume shadow that each car microphone in N number of car microphone is respectively provided with according to the acoustical signal
Ring value；
S13, according to the volume influence value of each car microphone in N number of car microphone and described each vehicle-mounted wheat
Gram wind the weighing factor value of m-th vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker is calculated m-th vehicle-mounted loudspeaker plus
Power volume adjustment value, to obtain the weighting volume adjustment value of each vehicle-mounted loudspeaker in the M vehicle-mounted loudspeaker；Wherein, institute
Weighing factor value is stated according to the distance between described each car microphone and described m-th vehicle-mounted loudspeaker to determine；m
It is the positive integer less than or equal to M；
S14, the output sound that correspondence vehicle-mounted loudspeaker is adjusted according to the weighting volume adjustment value of each vehicle-mounted loudspeaker
Amount.
Preferably, step S12 includes：
When needing to carry out people's sound detection, and at least one has the human voice signal in detecting the acoustical signal
When, the volume influence value of the car microphone of pickup to the human voice signal is set to into the first preset value, and will be not picked up
The volume influence value of the car microphone of the human voice signal is set to the second preset value.
Preferably, step S12 also includes：
When needing to carry out people's sound detection, and when there is no the human voice signal in detecting the acoustical signal, according to
Noise signal in the acoustical signal that described each car microphone is picked up calculates the sound of each car microphone respectively
Amount influence value.
Preferably, step S12 includes：
When people's sound detection need not be carried out, according to the noise in the acoustical signal that described each car microphone is picked up
Signal calculates the volume influence value of each car microphone respectively.
Preferably, the noise signal in the acoustical signal that each car microphone described in the basis is picked up is calculated respectively
The volume influence value of each car microphone, specifically includes：
Noise signal strength in the acoustical signal that each car microphone described in obtaining respectively is picked up；
Each noise signal strength is multiplied by into impact coefficient respectively, is affected with the volume for obtaining each car microphone
Value；Wherein, it is described to affect coefficient to be impact intensity by noise to volume determining.
Preferably, after step S11, before step S12, also include：
Detect the type of the audio signal that the M vehicle-mounted loudspeaker is currently exported；Wherein, the class of each audio signal
Type has been pre-configured with corresponding voice detection information；The voice detection information is used to judge whether to need to carry out voice inspection
Survey；
Judge whether to need to carry out voice according to the voice detection information configured by the type of the audio signal of current output
Detection.
Specifically, step S14 is specifically included：
The sum of the weighting volume adjustment value of each vehicle-mounted loudspeaker and its setting volume value described in calculating respectively, to obtain respectively
Obtain the target sound value of each vehicle-mounted loudspeaker；
The output volume of each vehicle-mounted loudspeaker is adjusted to corresponding target sound value.
Preferably, the described output volume of each vehicle-mounted loudspeaker is adjusted to corresponding target sound value is specially：
The output volume of each vehicle-mounted loudspeaker is gradually adjusted to corresponding target sound value.
Further, the output volume by each vehicle-mounted loudspeaker is gradually adjusted to corresponding target sound value, bag
Include：
The current output volume of each vehicle-mounted loudspeaker described in obtaining；
The current output volume and the difference of its target sound value of each vehicle-mounted loudspeaker described in calculating respectively；
Described in judging respectively, the current output volume of each vehicle-mounted loudspeaker with the absolute value of the difference of its target sound value is
It is no to meet pre-conditioned；Wherein, the difference of the pre-conditioned current output volume for the vehicle-mounted loudspeaker and its target sound value
Absolute value be less than default threshold value；
For the pre-conditioned vehicle-mounted loudspeaker is unsatisfactory for, its current mistake is calculated respectively according to default time interval
Volume value is crossed, and the computing formula of the current transition volume value is：V0=V3+ [V2- (V3-V1)] K；Wherein, V0 is；V1
For the setting volume value of vehicle-mounted loudspeaker, weighting volume adjustment values of the V2 for vehicle-mounted loudspeaker, K are default variation coefficient；V3
For the current output volume of each vehicle-mounted loudspeaker；K is less than or equal to 1；
Respectively the output volume of each vehicle-mounted loudspeaker is adjusted to corresponding current transition volume value.
Preferably, methods described also includes：
For the pre-conditioned vehicle-mounted loudspeaker is met, its current transition volume value is set to into its target sound respectively
Value.
Accordingly, the one side of the embodiment of the present invention also provides a kind of sound volume control device of vehicle-mounted loudspeaker, described
Device includes：
Acoustical signal acquisition module, for obtaining the acoustical signal that N number of car microphone is picked up respectively；
Volume influence value setup module, for being respectively provided with N number of car microphone often according to the acoustical signal
The volume influence value of individual car microphone；
Weighting volume adjustment value computing module, for the sound according to each car microphone in N number of car microphone
The amount weighing factor value meter of influence value and described each car microphone to m-th vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker
The weighting volume adjustment value of m-th vehicle-mounted loudspeaker is calculated, to obtain each vehicle-mounted loudspeaker in the M vehicle-mounted loudspeaker
Weighting volume adjustment value；Wherein, the weighing factor value vehicle-mounted is raised according to described each car microphone and described m-th
The distance between sound device is determining；M is the positive integer less than or equal to M；And,
Output volume adjusting module, for according to the weighting volume adjustment value of each vehicle-mounted loudspeaker adjustment correspondence car
Carry the output volume of speaker.
Preferably, the volume influence value setup module includes：
First volume influence value setting unit, needs to carry out people's sound detection for working as, and detects in the acoustical signal
When at least one has the human voice signal, the volume influence value of the car microphone of pickup to the human voice signal is arranged
For the first preset value, and the volume influence value for being not picked up the car microphone of the human voice signal is set to into second presets
Value.
Preferably, the volume influence value setup module also includes：
Second volume influence value setting unit, needs to carry out people's sound detection for working as, and detects in the acoustical signal
When there is no the human voice signal, distinguished according to the noise signal in the acoustical signal that described each car microphone is picked up
The volume influence value of each car microphone described in calculating.
Preferably, the volume influence value setup module includes：
3rd volume influence value setting unit, for when people's sound detection need not be carried out, according to described each vehicle-mounted wheat
Noise signal in the acoustical signal that gram wind is picked up calculates the volume influence value of each car microphone respectively.
Preferably, it is characterised in that described device also includes：
Audio types detection module, for detecting the type of the audio signal of the current output of the M vehicle-mounted loudspeaker；Its
In, the type of each audio signal has been pre-configured with corresponding voice detection information；The voice detection information is used for
Judge whether to need to carry out people's sound detection；And,
Voice detection demand determination module, for the people's sound detection configured according to the type of the audio signal of current output
Information judges whether to need to carry out people's sound detection.
Specifically, the output volume adjusting module is specifically included：
Target sound value acquiring unit, for respectively calculate described in each vehicle-mounted loudspeaker weighting volume adjustment value and its
The sum of setting volume value, to obtain the target sound value of each vehicle-mounted loudspeaker respectively；And,
Output volume adjustment unit, for the output volume of each vehicle-mounted loudspeaker is adjusted to corresponding target sound
Value.
Preferably, the output volume adjustment unit specifically for：
The output volume of each vehicle-mounted loudspeaker is gradually adjusted to corresponding target sound value.
Further, the output volume adjustment unit includes：
Current output volume obtains subelement, for obtaining the current output volume of each vehicle-mounted loudspeaker；Difference
Computation subunit, for calculating the current output volume of each vehicle-mounted loudspeaker and the difference of its target sound value respectively；
Pre-conditioned judgment sub-unit, for judging the current output volume and its mesh of each vehicle-mounted loudspeaker respectively
It is pre-conditioned whether the absolute value of the difference of mark with phonetic symbols value meets；Wherein, the pre-conditioned current output for the vehicle-mounted loudspeaker
Volume is less than default threshold value with the absolute value of the difference of its target sound value；
Transition sound magnitude calculation subelement, for for the pre-conditioned vehicle-mounted loudspeaker is unsatisfactory for, according to default
Time interval calculate its current transition volume value respectively, and the computing formula of the current transition volume value is：V0=V3+
[V2-(V3-V1)]·K；Wherein, V0 is the current transition volume value of the vehicle-mounted loudspeaker；V1 is the vehicle-mounted loudspeaker
Setting volume value, V2 is the weighting volume adjustment value of the vehicle-mounted loudspeaker, and V3 is the current output sound of the vehicle-mounted loudspeaker
Amount；K is default variation coefficient, and K is the positive number less than 1；And,
Output volume adjusts subelement, for the output volume of each vehicle-mounted loudspeaker being adjusted to corresponding respectively
Current transition volume value.
Preferably, described device also includes：
Transition volume value arranges subelement, for the pre-conditioned vehicle-mounted loudspeaker is met, respectively by its current mistake
Cross volume value and be set to its target sound value.
Accordingly, the one side of the embodiment of the present invention also provides a kind of sound-volume control system of vehicle-mounted loudspeaker, described
System includes：The volume control of the vehicle-mounted loudspeaker provided by N number of vehicle-mounted loudspeaker, M car microphone and above-described embodiment
Device processed.
Implement the present invention, have the advantages that：
The method for controlling volume of vehicle-mounted loudspeaker provided in an embodiment of the present invention, apparatus and system, by obtaining every respectively
The Different Effects of each vehicle-mounted loudspeaker are weighed by the acoustical signal that individual car microphone is picked up according to each car microphone
Weight, the adjustment of different amplitude ground are distributed in the output volume of compartment vehicle-mounted loudspeaker everywhere, wherein, weighing factor is by vehicle-mounted Mike
The distance between wind and vehicle-mounted loudspeaker are determining, it is seen then that the embodiment of the present invention can be believed according to the sound that mike be collected
Number sound source position difference amplitude ground adjustment be distributed in the output volume of compartment speaker everywhere, be effectively improved user's body
Test.
Description of the drawings
Fig. 1 is the schematic flow sheet of one embodiment of the method for controlling volume of the vehicle-mounted loudspeaker that the present invention is provided；
Fig. 2 is the structural representation of one embodiment of the sound volume control device of the vehicle-mounted loudspeaker that the present invention is provided；
Fig. 3 is the schematic flow sheet of one embodiment of the sound-volume control system of the vehicle-mounted loudspeaker that the present invention is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The one side of the embodiment of the present invention provides a kind of method for controlling volume of vehicle-mounted loudspeaker.
Fig. 1 is referred to, is that the flow process of one embodiment of the method for controlling volume of the vehicle-mounted loudspeaker that the present invention is provided is shown
It is intended to, methods described comprises the steps：
S11, the acoustical signal that N number of car microphone is picked up is obtained respectively；
Wherein, car microphone is the audio input device being arranged in compartment, for picking up acoustical signal and by its turn
The signal of telecommunication is turned to, therefore, it is by the signal of telecommunication after mike conversion that the acoustical signal for now obtaining is actual.
It should be noted that the pick-up capability according to mike to the sound from all directions, i.e., to different directions
The sensitivity of sound, existing mike are broadly divided into three kinds：Omnidirectional, double directing property and unidirectivity.
In the embodiment of the present invention, preferred single directive microphone, its optimal radio reception angle are a small range conical region,
Therefore, it can more accurately pick up target sound signal.For example, when the situation for wishing to be spoken according to the people in compartment is neatly controlled
When system is distributed in the output volume of the speaker in compartment everywhere, optional conical region just covers the Mike at a seat
Wind, also, in order to reach preferable voice pickup effect, mike can be arranged in compartment apart from the nearer position of mouth.
In the specific implementation, mike can be arranged on the surface at each seat in compartment, the optimal radio reception angle for making mike is
A conical region immediately below which, and the seat immediately below which is just covered, therefore, when the someone in compartment speaks,
Mike directly over its seat can pick up the human voice signal that this people sends, and the mike for being arranged on other positions is picked up
The probability very little of the human voice signal is got, voice sound source thus can be more accurately determined.
S12, the volume shadow that each car microphone in N number of car microphone is respectively provided with according to the acoustical signal
Ring value；
It should be noted that what the volume influence value of car microphone represented is the car microphone to all cars in compartment
The impact of the output volume of speaker is carried, adjustment direction and the adjustment of its output volume for certain vehicle-mounted loudspeaker, is affected
The one side factor of amplitude, is exactly the volume influence value of each car microphone in compartment, the interval of volume influence value
For [- 100 ,+100], when volume influence value be on the occasion of when, represent that the output volume of vehicle-mounted loudspeaker increases, negative value represents output
Volume attenuation, null value represent that output volume is constant, and the absolute value of volume influence value is bigger, the width for accordingly increasing or decaying
Degree is bigger, otherwise.
S13, according to the volume influence value of each car microphone in N number of car microphone and described each vehicle-mounted wheat
Gram wind the weighing factor value of m-th vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker is calculated m-th vehicle-mounted loudspeaker plus
Power volume adjustment value, to obtain the weighting volume adjustment value of each vehicle-mounted loudspeaker in the M vehicle-mounted loudspeaker；Wherein, institute
Weighing factor value is stated according to the distance between described each car microphone and described m-th vehicle-mounted loudspeaker to determine；m
It is the positive integer less than or equal to M；
It should be noted that with reference to mentioned above, for any one vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker, shadow
The one side factor of the adjustment direction and adjustment amplitude of its output volume is rung, is the volume shadow of each car microphone in compartment
Value is rung, however, affecting the another aspect factor of the adjustment direction and adjustment amplitude of its output volume, is each car microphone
Weighing factor to the vehicle-mounted loudspeaker.For example, when needing to carry out people's sound detection, to any one in M vehicle-mounted loudspeaker
For vehicle-mounted loudspeaker, the output of the car microphone to the vehicle-mounted loudspeaker of human voice signal has been arrived in each pickup in compartment
Volume has an impact, also, the difference of the horizontal range according to each mike to the vehicle-mounted loudspeaker, each mike pair
The weighing factor of the output volume of the vehicle-mounted loudspeaker is also different, apart from the car microphone that the vehicle-mounted loudspeaker is nearer, to this
The weighing factor of the output volume of vehicle-mounted loudspeaker is bigger.Therefore, any one vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker is come
Say, can be calculated a weighting volume adjustment value with reference to above-mentioned both sides factor, the weighting volume adjustment value is and is based on
The situation of the acoustical signal that each car microphone current pickup is arrived in compartment, the output volume of the vehicle-mounted loudspeaker need to adjust
Whole volume change amount, for example, under the present circumstances, the current volume setting value of certain vehicle-mounted loudspeaker is 50 scales, according to
The situation of the acoustical signal that each car microphone current pickup is arrived in compartment, is calculated the weighting sound of the vehicle-mounted loudspeaker
Amount adjusted value is -20 scales, then mean that the output volume of the vehicle-mounted loudspeaker needs 20 scales of decaying, that is, need to export sound
Amount is adjusted to 30 scales.
Specifically, for m-th vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker, the meter of its weighting volume adjustment value
Calculating formula is
Wherein, VmtFor the weighting volume adjustment value of m-th vehicle-mounted loudspeaker, VnFor n-th car in N number of car microphone
The volume influence value of mike is carried, n is the positive integer less than or equal to N；PnmRaise for n-th car microphone is vehicle-mounted to m-th
The weighing factor value of sound device；K1For unit coefficient, for the m, K that determine1Size be formula (1) in n weighing factor value it
With, for example, during m=1, then K1=P11+P21+P31+...+Pn1。
It should be noted that after the N number of car microphone and M vehicle-mounted loudspeaker in compartment is all installed, i.e., they
Relative position determine after, obtain each car microphone in N number of car microphone respectively to the level of M vehicle-mounted loudspeaker
Distance, it is thus, measurable to obtain N M horizontal ranges, further according to n-th car microphone to the level between M speaker
Distance, calculates weighing factor value of n-th car microphone to M speaker respectively, and n is in the positive integer in interval [1, N]
Value successively, you can obtain the weight matrix P of a N × M, P mentioned abovenmIt is its matrix element, PnmRepresent N number of vehicle-mounted
Weighing factor value of n-th car microphone in mike to m-th vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker.In addition,
N-th car microphone is inversely proportional to the horizontal range between them to the weighing factor value of M vehicle-mounted loudspeaker, i.e., and two
Horizontal range between person is more remote, and the car microphone is less to the weighing factor of the vehicle-mounted loudspeaker, otherwise.
Specifically, lifted with the situation of total number M=6 of total number N=3 and vehicle-mounted loudspeaker of car microphone below
The calculating process of example explanation weight matrix P, first, n values are 1, obtain that the 1st car microphone to 6 is vehicle-mounted raises one's voice respectively
Horizontal range d of device1、d2、d3、d4、d5And d6, intermediate variable A is set, thenThen matrix
UnitM values successively in the positive integer in interval [1, M], you can obtain the square of the first row of weight matrix P
Array element：P11、P12、P13、P14、P15、P16, the matrix element of above-mentioned first row be respectively the 1st mike to the 1st, the 2nd, the 3rd
The weighing factor value of individual ... the 6th vehicle-mounted loudspeaker, analogizes in the same manner, and n values are 2, can be calculated the secondary series of weight matrix P
Matrix element：P21、P22、P23、P24、P25、P26, the matrix element of above-mentioned secondary series be respectively the 2nd mike to the 1st, the 2nd
Individual, the weighing factor value of the 3rd ... the 6th vehicle-mounted loudspeaker, and, n values are 3, can be calculated the 3rd of weight matrix P the
The matrix element of row：P31、P32、P33、P34、P35、P36, above-mentioned tertial matrix element be respectively the 3rd mike to the 1st, the 2nd
Individual, the weighing factor value of the 3rd ... the 6th vehicle-mounted loudspeaker, thus, weight matrix P is：
S14, the output sound that correspondence vehicle-mounted loudspeaker is adjusted according to the weighting volume adjustment value of each vehicle-mounted loudspeaker
Amount.
In embodiments of the present invention, what weighting volume adjustment value was represented is the variable quantity of volume, for example, is calculated certain
The weighting volume adjustment value of vehicle-mounted loudspeaker is -20 scales, and the current volume setting value of the vehicle-mounted loudspeaker is 50 scales, then
Mean that the output volume of the vehicle-mounted loudspeaker needs 20 scales of decaying, that is, need to adjust the output volume of the vehicle-mounted loudspeaker
To 30 scales.
Preferably, step S12 includes：
When needing to carry out people's sound detection, and at least one has the human voice signal in detecting the acoustical signal
When, the volume influence value of the car microphone of pickup to the human voice signal is set to into the first preset value, and will be not picked up
The volume influence value of the car microphone of the human voice signal is set to the second preset value.
Wherein, the human voice signal refers to the acoustical signal that the people in outside human voice signal, i.e. compartment sends, such as compartment
Interior someone speaks, then this one's voice in speech signal will be detected as the human voice signal.If however, in vehicle-mounted loudspeaker
The voice of broadcasting is then not belonging to the human voice signal, and for example just in broadcast station, car microphone returns record and arrives vehicle-mounted loudspeaker
The radio station acoustical signal, when people's sound detection is carried out, the radio station voice that car microphone is picked up will not then be detected as described
Human voice signal.
In embodiments of the present invention, people's sound detection can be achieved by the prior art, such as when car microphone pickup is arrived
Outside human voice signal, while when also returning record and having arrived the voice of vehicle-mounted loudspeaker broadcasting, can will be vehicle-mounted by echo cancellor scheduling algorithm
The voice that speaker is played is eliminated, only remaining outside human voice signal, to realize people's sound detection.
In embodiments of the present invention, when needing to carry out people's sound detection, and detect at least one vehicle-mounted Mike in compartment
When human voice signal has been arrived in wind pickup, whether car microphone picks up human voice signal affects the volume for affecting the car microphone
Value, and then the output volume of all vehicle-mounted loudspeakers in compartment is affected, specifically, pickup has arrived the mike of human voice signal to car
The impact of all vehicle-mounted loudspeakers in railway carriage or compartment is so that the output volume decay of all vehicle-mounted loudspeakers in compartment, and is not picked up people
The mike of acoustical signal is not affected on the output volume of all speakers in compartment.In being embodied as, the first preset value for-
U, the second preset value are that, according to a user's request positive constant set in advance ,-U represents the output of vehicle-mounted loudspeaker for 0, U
U unit of volume attenuation, volume is using " scale " as unit.
However, it is necessary to explanation, the volume influence value of the car microphone of pickup to human voice signal is-U, to M car
For carrying any one vehicle-mounted loudspeaker in speaker, a middle ginseng during its weighting volume adjustment value is only calculated
Amount, is not offered as the output volume of the vehicle-mounted loudspeaker with regard to therefore-U unit of decay, and the output volume of the vehicle-mounted loudspeaker is needed
How many units of adjustment are vehicle-mounted to this by the volume influence value and each car microphone of each car microphone in compartment
What the weighing factor of speaker was together decided on.
Preferably, step S12 also includes：
When needing to carry out people's sound detection, and when there is no the human voice signal in detecting the acoustical signal, according to
Noise signal in the acoustical signal that described each car microphone is picked up calculates the sound of each car microphone respectively
Amount influence value.
It should be noted that mike pickup acoustical signal when, may pick up human voice signal, noise signal or its
One or any several combination in his acoustical signal (such as the acoustical signal that current speaker is being played).Wherein, institute
State the peculiar background noise that noise signal refers to when vehicle is travelled, such as tyre noise, wind noise and air-conditioning noise etc..
In the present embodiment, when needing to carry out people's sound detection, and all car microphones in compartment are detected all do not have
When picking up human voice signal, the noise signal that car microphone is picked up will affect the volume influence value of car microphone, and then
Affect the output volume of all vehicle-mounted loudspeakers in compartment.
Further, the noise signal in the acoustical signal that each car microphone described in the basis is picked up is counted respectively
Described in calculating, the volume influence value of each car microphone, specifically includes：
Noise signal strength in the acoustical signal that each car microphone described in obtaining respectively is picked up；
Each noise signal strength is multiplied by into impact coefficient respectively, is affected with the volume for obtaining each car microphone
Value；Wherein, it is described to affect coefficient to be impact intensity by noise to volume determining.
Specifically, when there is no the human voice signal in the acoustical signal is detected, in N number of car microphone
The computing formula of the volume influence value of n-th car microphone is：
Vn=Yn*K2
Wherein, VnFor the volume influence value of n-th car microphone, YnFor the sound letter that n-th car microphone is picked up
The intensity of the noise signal in number, YnInterval be [0,100]；K2To affect coefficient, the impact coefficient is by user's root
According to the constant that actual demand sets, influence degree of the noise to vehicle-mounted loudspeaker output volume is represented, affects coefficient bigger,
Then noise is bigger to the influence degree of volume, and impact coefficient is less, then noise is less to the influence degree of volume；Due to K2For normal
Number, therefore, in a practical situation, noise intensity YnIt is bigger, VnIt is bigger.Specifically,Wherein, K3For unit coefficient, with
K mentioned above1Same meaning, value also with K1It is identical；U is according to a user's request positive constant set in advance, ibid
Literary described, U represents that the output volume of vehicle-mounted loudspeaker increases U unit, and volume is using " scale " as unit.
Explanation is needed also exist for, in the present embodiment, when needing to carry out people's sound detection, and is detected in compartment and is owned
When car microphone does not all pick up human voice signal, for any one vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker, which is defeated
It is by the volume influence value and each car microphone of each car microphone in compartment that go out volume need to adjust how many units
The weighing factor of the vehicle-mounted loudspeaker is together decided on.
Preferably, step S12 includes：
When people's sound detection need not be carried out, according to the noise in the acoustical signal that described each car microphone is picked up
Signal calculates the volume influence value of each car microphone respectively.
In the present embodiment, the situation of people's sound detection, such as current vehicle can need not be carried out according to user's request setting
Carry speaker and play moving car alarm sound.In this case, people's sound detection is not carried out, but picked up according to mike
Noise signal in acoustical signal calculates the volume influence value of each car microphone respectively, even if that is, certain car microphone is picked up
Human voice signal is got, the human voice signal does not interfere with the volume influence value of the car microphone yet, and by the car microphone
The volume influence value of the noise impact car microphone for picking up, and then affect the defeated of all vehicle-mounted loudspeakers in compartment
Go out volume.
Further, the noise signal in the acoustical signal that each car microphone described in the basis is picked up is counted respectively
Described in calculating, the volume influence value of each car microphone, specifically includes：
Noise signal strength in the acoustical signal that each car microphone described in obtaining respectively is picked up；
Each noise signal strength is multiplied by into impact coefficient respectively, is affected with the volume for obtaining each car microphone
Value；Wherein, it is described to affect coefficient to be impact intensity by noise to volume determining.
Specifically, in present embodiment, the meter of the volume influence value of n-th car microphone in N number of car microphone
N-th vehicle-mounted wheat of calculation method and " when all car microphones all do not pick up human voice signal in compartment " mentioned above
The computational methods of the volume influence value of gram wind are identical, are not added with herein repeating.
Preferably, after step S11, before step S12, also include：
Detect the type of the audio signal that the M vehicle-mounted loudspeaker is currently exported；Wherein, the class of each audio signal
Type has been pre-configured with corresponding voice detection information；The voice detection information is used to judge whether to need to carry out voice inspection
Survey；
Judge whether to need to carry out voice according to the voice detection information configured by the type of the audio signal of current output
Detection.
Wherein, in actual applications, can be with the audio signal of broadcasting diversified type, such as multimedia in vehicle-mounted loudspeaker
Sound, moving car alarm sound and navigation hint sound etc..Wherein, multimedia sound refers to the sound such as music, broadcast and radio station, driving police
Show that sound refers to the sound such as tire pressure warning, water temperature are reported to the police and car door is reported to the police, navigation hint sound refers to leading for onboard navigation system
The sound that boat is reported.
It should be noted that in the present embodiment, the type of each audio signal is pre-configured with corresponding
Voice detection information, represents when the sound of currently playing this type of vehicle-mounted loudspeaker, if carry out people's sound detection, for example in advance
The voice detection information for first setting multimedia sound represents and needs to carry out people's sound detection, then currently playing when vehicle-mounted loudspeaker is detected
Sound type when being multimedia sound, judgement needs to carry out people's sound detection；Preset the voice detection information of moving car alarm sound
Expression need not carry out people's sound detection, then when it is moving car alarm sound to detect the currently playing sound type of vehicle-mounted loudspeaker,
Judgement need not carry out people's sound detection.
In the present embodiment, can be moving car alarm in the type for detecting the sound that vehicle-mounted loudspeaker is currently played
During sound, judgement need not carry out people's sound detection, even if there is car microphone to detect human voice signal in compartment, also not according to people
Acoustical signal turns down the output volume of vehicle-mounted loudspeaker, so ensure that the people in compartment catches moving car alarm sound, so that car
People in railway carriage or compartment can be taken measures in time according to moving car alarm sound, it is ensured that traffic safety.
Specifically, step S14 is specifically included：
The sum of the weighting volume adjustment value of each vehicle-mounted loudspeaker and its setting volume value described in calculating respectively, to obtain respectively
Obtain the target sound value of each vehicle-mounted loudspeaker；
The output volume of each vehicle-mounted loudspeaker is adjusted to corresponding target sound value.
It should be noted that for each vehicle-mounted loudspeaker, all there is a setting volume value, the setting volume value
Be user according to the actual requirements by the physical knob or physical button in mobile unit being input into, it is only according to user's
It is input into change.
In the present embodiment, for certain vehicle-mounted loudspeaker, setting volume value is 50 scales, if at certain
Carve, have car microphone pickup to arrive human voice signal in compartment, and need to carry out people's sound detection, and according to the vehicle-mounted wheat in compartment
The situation of the acoustical signal that gram wind is picked up, the weighting volume adjustment value for being calculated the vehicle-mounted loudspeaker are -20 scales, then will
50 scales and -20 scales are summed up, then the target sound value that can obtain the vehicle-mounted loudspeaker is 30 scales, and this vehicle-mounted is raised
The output volume of sound device is adjusted to 30 scales, subsequently, if the sound that the car microphone in compartment is picked up from 50 scales
The situation of signal there occurs change, and correspondence is calculated the weighting volume adjustment value of the vehicle-mounted loudspeaker and becomes -40 scales, then
50 scales and -40 scales are summed up, the target sound value for obtaining the vehicle-mounted loudspeaker is 10 scales, by the vehicle-mounted loudspeaker
Output volume adjust to 10 scales from 30 scales.
Preferably, the described output volume of each vehicle-mounted loudspeaker is adjusted to corresponding target sound value is specially：
The output volume of each vehicle-mounted loudspeaker is gradually adjusted to corresponding target sound value.
It should be noted that for any one vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker, having got its weighting sound
After amount adjusted value, directly can set on volume value plus weighting volume adjustment value at which, disposably output it volume adjustment
To target sound value, but, in the case where weighting volume value is larger, such adjustment mode can be more stiff so that hearer
Sound that the change of sound is very big, the process that human ear neither one is adapted to easily is damaged to human ear and human psychological, and user
Experience is not good.
In embodiments, after getting the weighting volume adjustment value of each vehicle-mounted loudspeaker, numerical value is done to output volume
Gradual change is processed, and has the mode that a variety of numerical value gradual changes are processed select, for example, the volume settings of certain vehicle-mounted loudspeaker and
Weighting volume adjustment value is respectively 50 scales and -20 scales, then it is 5 scales that can arrange a gradual change amount, according to this gradually
The output volume of the vehicle-mounted loudspeaker is first adjusted to 45 scales by variable by 50 scales, then is adjusted to 40 scales by 45 scales, then
Adjusted to 35 scales by 40 scales, until the output volume of the vehicle-mounted loudspeaker has been adjusted to 30 scale of target sound value, then it is complete
Into adjustment task.
In present embodiment, the output volume of vehicle-mounted loudspeaker is gradually gradient to target sound value, due to using sound gradually
The method of change realizes buffering adjustment, preferably realizes the control of sound saltus step, and the appearance that sonic boom can be suppressed ear-piercing makes sound
Sound more natural, it is more melodious, be conducive to the health of hearer, and improve Consumer's Experience.
Further, the output volume by each vehicle-mounted loudspeaker is gradually adjusted to corresponding target sound value, bag
Include：
The current output volume of each vehicle-mounted loudspeaker described in obtaining；
The current output volume and the difference of its target sound value of each vehicle-mounted loudspeaker described in calculating respectively；
Described in judging respectively, the current output volume of each vehicle-mounted loudspeaker with the absolute value of the difference of its target sound value is
It is no to meet pre-conditioned；Wherein, the difference of the pre-conditioned current output volume for the vehicle-mounted loudspeaker and its target sound value
Absolute value be less than default threshold value；
For the pre-conditioned vehicle-mounted loudspeaker is unsatisfactory for, its current mistake is calculated respectively according to default time interval
Volume value is crossed, and the computing formula of the current transition volume value is：V0=V3+ [V2- (V3-V1)] K；Wherein, V0 is institute
State the current transition volume value of vehicle-mounted loudspeaker；V1 is the setting volume value of the vehicle-mounted loudspeaker, and V2 vehicle-mounted raises one's voice for described
The weighting volume adjustment value of device, V3 are the current output volume of the vehicle-mounted loudspeaker；K be default variation coefficient, K be less than
1 positive number；
Respectively the output volume of each vehicle-mounted loudspeaker is adjusted to corresponding current transition volume value.
Wherein, the size of variation coefficient K affects the output volume of vehicle-mounted loudspeaker to reach the time needed for target sound value,
For any one vehicle-mounted loudspeaker, its K value is less, outputs it volume and adjusts to needed for target sound value from volume settings
Time it is longer, otherwise.
A kind of preferably numerical value gradual change processing mode is provided in present embodiment, below to providing gradually in present embodiment
Change mode is illustrated, if for certain vehicle-mounted loudspeaker, its setting volume value and weighting volume adjustment value were respectively for 50 quarters
Degree and -20 scales, and default threshold value is 0.1, default time interval is 50ms, and default variation coefficient is 1/10, and which is defeated
The adjustment process for going out volume is as follows：
First transition volume value is V0=50+ [- 20- (50-50)] * (1/10)=48, i.e., be adjusted to this for the first time
The output volume of vehicle-mounted loudspeaker is adjusted to 48 scales from 50 scales；
After 50ms, it is V0=48+ [- 20- (48-50)] * (1/10)=46.2 scale to calculate second transition volume value, i.e.,
It is adjusted to for the first time and the output volume of the vehicle-mounted loudspeaker is adjusted to 46.2 scales from 48 scales；
After another 50ms, calculate the 3rd transition volume value be V0=46.2+ [- 20- (46.2-50)] * (1/10)=
44.58 scales, i.e., be adjusted to for the first time and the output volume of the vehicle-mounted loudspeaker adjusted to 44.58 scales from 46.2 scales；
The like, until the current output volume of the vehicle-mounted loudspeaker is less than with the absolute value of the difference of its target sound value
During default threshold value 0.1, stop calculating transition volume value, the task of adjusting output volume is completed.
Preferably, methods described also includes：
For the pre-conditioned vehicle-mounted loudspeaker is met, its current transition volume value is set to into its target sound respectively
Value.
It should be noted that in the above-described embodiment, calculated last transition volume value during adjustment
Target sound value may not be exactly equal to, and be equal to a value for being very close to target sound value, can thus be carried out band and adjust
Whole error, therefore, in the present embodiment, also including a step, i.e., for current output volume and its target sound value
Its transition volume value is directly disposed as its target sound value by the poor vehicle-mounted loudspeaker for being definitely less than default threshold value respectively,
Like this, it is ensured that output volume can be adjusted to target sound value just every time, improve the accuracy of adjustment.
Accordingly, the one side of the embodiment of the present invention also provides a kind of sound volume control device of vehicle-mounted loudspeaker, can
Realize the embodiment of the present invention one side provide vehicle-mounted loudspeaker method for controlling volume in all flow processs.
Fig. 2 is referred to, is the structure of one embodiment of the sound volume control device 10 of the vehicle-mounted loudspeaker that the present invention is provided
Schematic diagram, the sound volume control device 10 of the vehicle-mounted loudspeaker include：
Acoustical signal acquisition module 11, for obtaining the acoustical signal that N number of car microphone is picked up respectively；
Volume influence value setup module 12, for being respectively provided with N number of car microphone according to the acoustical signal
The volume influence value of each car microphone；
Weighting volume adjustment value computing module 13, for according to each car microphone in N number of car microphone
The weighing factor value of volume influence value and described each car microphone to m-th vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker
The weighting volume adjustment value of m-th vehicle-mounted loudspeaker is calculated, vehicle-mounted is raised one's voice with obtaining in the M vehicle-mounted loudspeaker each
The weighting volume adjustment value of device；Wherein, the weighing factor value be according to described each car microphone and it is described m-th it is vehicle-mounted
The distance between speaker is determining；M is the positive integer less than or equal to M；And,
Output volume adjusting module 14, for according to the weighting volume adjustment value of each vehicle-mounted loudspeaker adjustment correspondence
The output volume of vehicle-mounted loudspeaker.
Preferably, the volume influence value setup module 12 includes：
First volume influence value setting unit, needs to carry out people's sound detection for working as, and detects in the acoustical signal
When at least one has the human voice signal, the volume influence value of the car microphone of pickup to the human voice signal is arranged
For the first preset value, and the volume influence value for being not picked up the car microphone of the human voice signal is set to into second presets
Value.
Preferably, the volume influence value setup module 12 also includes：
Second volume influence value setting unit, needs to carry out people's sound detection for working as, and detects in the acoustical signal
When there is no the human voice signal, distinguished according to the noise signal in the acoustical signal that described each car microphone is picked up
The volume influence value of each car microphone described in calculating.
Further, the second volume influence value setting unit is specifically included：
First noise intensity obtains subelement, needs to carry out people's sound detection for working as, and detects in the acoustical signal
When there is no the human voice signal, the noise signal in the acoustical signal that described each car microphone is picked up is obtained respectively
Intensity；
First volume influence value computation subunit, for each noise signal strength is multiplied by impact coefficient respectively, with
To the volume influence value of each car microphone；Wherein, it is described to affect coefficient to be that the impact intensity by noise to volume is come
It is determined that.
Preferably, the volume influence value setup module 12 includes：
3rd volume influence value setting unit, for when people's sound detection need not be carried out, according to described each vehicle-mounted wheat
Noise signal in the acoustical signal that gram wind is picked up calculates the volume influence value of each car microphone respectively.
Further, the 3rd volume influence value setting unit is specifically included：
Second noise intensity obtains subelement, for obtaining the acoustical signal that described each car microphone is picked up respectively
In noise signal strength；
Second volume influence value computation subunit, for each noise signal strength is multiplied by impact coefficient respectively, with
To the volume influence value of each car microphone；Wherein, it is described to affect coefficient to be that the impact intensity by noise to volume is come
It is determined that.
Preferably, the sound volume control device 10 of the vehicle-mounted loudspeaker also includes：
Audio types detection module, for detecting the type of the audio signal of the current output of the M vehicle-mounted loudspeaker；Its
In, the type of each audio signal has been pre-configured with corresponding voice detection information；The voice detection information is used for
Judge whether to need to carry out people's sound detection；And,
Voice detection demand determination module, for the people's sound detection configured according to the type of the audio signal of current output
Information judges whether to need to carry out people's sound detection.
Specifically, the output volume adjusting module 14 includes：
Target sound value acquiring unit, for respectively calculate described in each vehicle-mounted loudspeaker weighting volume adjustment value and its
The sum of setting volume value, to obtain the target sound value of each vehicle-mounted loudspeaker respectively；And,
Output volume adjustment unit, for the output volume of each vehicle-mounted loudspeaker is adjusted to corresponding target sound
Value.
Preferably, the output volume adjustment unit specifically for：
The output volume of each vehicle-mounted loudspeaker is gradually adjusted to corresponding target sound value.
Further, the output volume adjustment unit includes：
Current output volume obtains subelement, for obtaining the current output volume of each vehicle-mounted loudspeaker；
Mathematic interpolation subelement, for calculating the current output volume and its target sound of each vehicle-mounted loudspeaker respectively
The difference of value；
Pre-conditioned judgment sub-unit, for judging the current output volume and its mesh of each vehicle-mounted loudspeaker respectively
It is pre-conditioned whether the absolute value of the difference of mark with phonetic symbols value meets；Wherein, the pre-conditioned current output for the vehicle-mounted loudspeaker
Volume is less than default threshold value with the absolute value of the difference of its target sound value；
Transition sound magnitude calculation subelement, for for the pre-conditioned vehicle-mounted loudspeaker is unsatisfactory for, according to default
Time interval calculate its current transition volume value respectively, and the computing formula of the current transition volume value is：V0=V3+
[V2-(V3-V1)]·K；Wherein, V0 is the current transition volume value of the vehicle-mounted loudspeaker；V1 is the vehicle-mounted loudspeaker
Setting volume value, V2 is the weighting volume adjustment value of the vehicle-mounted loudspeaker, and V3 is the current output sound of the vehicle-mounted loudspeaker
Amount；K is default variation coefficient, and K is the positive number less than 1；And,
Output volume adjusts subelement, for the output volume of each vehicle-mounted loudspeaker being adjusted to corresponding respectively
Current transition volume value.
Preferably, described device also includes：
Transition volume value arranges subelement, for the pre-conditioned vehicle-mounted loudspeaker is met, respectively by its current mistake
Cross volume value and be set to its target sound value.
Accordingly, the present invention also provides a kind of one embodiment of the sound-volume control system of vehicle-mounted loudspeaker.
Fig. 3 is referred to, is that the structure of one embodiment of the sound-volume control system of the vehicle-mounted loudspeaker that the present invention is provided is shown
It is intended to, the sound-volume control system of the vehicle-mounted loudspeaker includes：
The volume of the vehicle-mounted loudspeaker provided by N number of vehicle-mounted loudspeaker 30, M car microphone 20 and above-described embodiment
Control device 10.
The method for controlling volume of vehicle-mounted loudspeaker provided in an embodiment of the present invention, apparatus and system, by obtaining every respectively
The Different Effects of each vehicle-mounted loudspeaker are weighed by the acoustical signal that individual car microphone is picked up according to each car microphone
Weight, the adjustment of different amplitude ground are distributed in the output volume of compartment vehicle-mounted loudspeaker everywhere, wherein, weighing factor is by vehicle-mounted Mike
The distance between wind and vehicle-mounted loudspeaker are determining, it is seen then that the embodiment of the present invention can be believed according to the sound that mike be collected
Number sound source position difference amplitude ground adjustment be distributed in the output volume of compartment speaker everywhere, be effectively improved user's body
Test.
One of ordinary skill in the art will appreciate that all or part of flow process in realizing above-described embodiment method, can be
Instruct related hardware to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvement and deformation can also be made, these improve and deformation is also considered as
Protection scope of the present invention.
Claims (15)
1. a kind of method for controlling volume of vehicle-mounted loudspeaker, it is characterised in that methods described includes：
S11, the acoustical signal that N number of car microphone is picked up is obtained respectively；
S12, the volume impact that each car microphone in N number of car microphone is respectively provided with according to the acoustical signal
Value；
S13, according to the volume influence value of each car microphone in N number of car microphone and described each car microphone
The weighting sound of m-th vehicle-mounted loudspeaker is calculated to the weighing factor value of m-th vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker
Amount adjusted value, to obtain the weighting volume adjustment value of each vehicle-mounted loudspeaker in the M vehicle-mounted loudspeaker；Wherein, the shadow
Ring weighted value according to the distance between described each car microphone and described m-th vehicle-mounted loudspeaker to determine；M is little
In or equal to the positive integer of M；
S14, the output volume that correspondence vehicle-mounted loudspeaker is adjusted according to the weighting volume adjustment value of each vehicle-mounted loudspeaker.
2. the method for controlling volume of vehicle-mounted loudspeaker as claimed in claim 1, it is characterised in that step S12 includes：
When needing to carry out people's sound detection, and when detecting that at least one has the human voice signal in the acoustical signal, will
The volume influence value for picking up the car microphone of the human voice signal is set to the first preset value, and will be not picked up the people
The volume influence value of the car microphone of acoustical signal is set to the second preset value.
3. the method for controlling volume of vehicle-mounted loudspeaker as claimed in claim 2, it is characterised in that step S12 also includes：
When needing to carry out people's sound detection, and when there is no the human voice signal in detecting the acoustical signal, according to described
Noise signal in the acoustical signal that each car microphone is picked up calculates the volume shadow of each car microphone respectively
Ring value.
4. the method for controlling volume of vehicle-mounted loudspeaker as claimed in claim 1, it is characterised in that step S12 includes：
When people's sound detection need not be carried out, according to the noise signal in the acoustical signal that described each car microphone is picked up
The volume influence value of each car microphone described in calculating respectively.
5. the method for controlling volume of the vehicle-mounted loudspeaker as described in claim 3 or 4, it is characterised in that described according to described every
Noise signal in the acoustical signal that individual car microphone is picked up calculates the volume of each car microphone respectively to be affected
Value, specifically includes：
Noise signal strength in the acoustical signal that each car microphone described in obtaining respectively is picked up；
Each noise signal strength is multiplied by into impact coefficient respectively, to obtain the volume influence value of each car microphone；
Wherein, it is described to affect coefficient to be impact intensity by noise to volume determining.
6. the method for controlling volume of the vehicle-mounted loudspeaker as described in any one of claim 2 to 4, it is characterised in that in the step
After rapid S11, before step S12, also include：
Detect the type of the audio signal that the M vehicle-mounted loudspeaker is currently exported；Wherein, the type of each audio signal is pre-
Corresponding voice detection information is configured with first；The voice detection information is used to judge whether to need to carry out people's sound detection；
Judge whether to need to carry out people's sound detection according to the voice detection information configured by the type of the audio signal of current output.
7. the method for controlling volume of vehicle-mounted loudspeaker as claimed in claim 1, it is characterised in that step S14 is specifically wrapped
Include：
The sum of the weighting volume adjustment value of each vehicle-mounted loudspeaker and its setting volume value described in calculating respectively, to obtain institute respectively
State the target sound value of each vehicle-mounted loudspeaker；
The output volume of each vehicle-mounted loudspeaker is adjusted to corresponding target sound value.
8. the method for controlling volume of vehicle-mounted loudspeaker as claimed in claim 7, it is characterised in that described that each vehicle-mounted is raised one's voice
The output volume of device is adjusted to corresponding target sound value and is specially：
The output volume of each vehicle-mounted loudspeaker is gradually adjusted to corresponding target sound value.
9. the method for controlling volume of vehicle-mounted loudspeaker as claimed in claim 8, it is characterised in that described that each vehicle-mounted is raised one's voice
The output volume of device is gradually adjusted to corresponding target sound value, including：
The current output volume of each vehicle-mounted loudspeaker described in obtaining；
The current output volume and the difference of its target sound value of each vehicle-mounted loudspeaker described in calculating respectively；
Whether the current output volume of each vehicle-mounted loudspeaker described in judging respectively is full with the absolute value of the difference of its target sound value
Foot is pre-conditioned；Wherein, the pre-conditioned current output volume for the vehicle-mounted loudspeaker is exhausted with the difference of its target sound value
To value less than default threshold value；
For the pre-conditioned vehicle-mounted loudspeaker is unsatisfactory for, its current transition sound is calculated respectively according to default time interval
Value, and the computing formula of the current transition volume value is：V0=V3+ [V2- (V3-V1)] K；Wherein, V0 is the car
Carry the current transition volume value of speaker；V1 is the setting volume value of the vehicle-mounted loudspeaker, and V2 is the vehicle-mounted loudspeaker
Weighting volume adjustment value, V3 is the current output volume of the vehicle-mounted loudspeaker；K is default variation coefficient, and K is less than 1
Positive number；
Respectively the output volume of each vehicle-mounted loudspeaker is adjusted to corresponding current transition volume value.
10. the method for controlling volume of vehicle-mounted loudspeaker as claimed in claim 9, it is characterised in that methods described also includes：
For the pre-conditioned vehicle-mounted loudspeaker is met, its current transition volume value is set to into its target volume respectively
Value.
11. a kind of sound volume control devices of vehicle-mounted loudspeaker, it is characterised in that described device includes：
Acoustical signal acquisition module, for obtaining the acoustical signal that N number of car microphone is picked up respectively；
Volume influence value setup module, for being respectively provided with each car in N number of car microphone according to the acoustical signal
Carry the volume influence value of mike；
Weighting volume adjustment value computing module, for the volume shadow according to each car microphone in N number of car microphone
Ring value and described each car microphone and institute is calculated to the weighing factor value of m-th vehicle-mounted loudspeaker in M vehicle-mounted loudspeaker
State the weighting volume adjustment value of m-th vehicle-mounted loudspeaker, with obtain each vehicle-mounted loudspeaker in the M vehicle-mounted loudspeaker plus
Power volume adjustment value；Wherein, the weighing factor value is according to described each car microphone and m-th vehicle-mounted loudspeaker
The distance between determining；M is the positive integer less than or equal to M；And,
Output volume adjusting module, for being adjusted according to the weighting volume adjustment value of each vehicle-mounted loudspeaker, correspondence is vehicle-mounted to raise
The output volume of sound device.
The sound volume control device of 12. vehicle-mounted loudspeakers as claimed in claim 11, it is characterised in that the volume influence value sets
Putting module includes：
First volume influence value setting unit, for when needing to carry out people's sound detection, and detects in the acoustical signal at least
When having one there is the human voice signal, the volume influence value of the car microphone of pickup to the human voice signal is set to into the
One preset value, and the volume influence value for being not picked up the car microphone of the human voice signal is set to into the second preset value.
The sound volume control device of 13. vehicle-mounted loudspeakers as claimed in claim 12, it is characterised in that the volume influence value sets
Putting module also includes：
Second volume influence value setting unit, for when needing to carry out people's sound detection, and detects in the acoustical signal not
During with the human voice signal, calculated according to the noise signal in the acoustical signal that described each car microphone is picked up respectively
The volume influence value of each car microphone.
The sound volume control device of 14. vehicle-mounted loudspeakers as claimed in claim 11, it is characterised in that the volume influence value sets
Putting module includes：
3rd volume influence value setting unit, for when people's sound detection need not be carried out, according to described each car microphone
Noise signal in the acoustical signal for picking up calculates the volume influence value of each car microphone respectively.
The sound volume control device of 15. vehicle-mounted loudspeakers as claimed in claim 11, it is characterised in that the output volume adjustment
Module includes：
Target sound value acquiring unit, for calculating weighting volume adjustment value and its setting of each vehicle-mounted loudspeaker respectively
The sum of volume value, to obtain the target sound value of each vehicle-mounted loudspeaker respectively；And,
Output volume adjustment unit, for the output volume of each vehicle-mounted loudspeaker is adjusted to corresponding target volume
Value.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610970269.1A CN106535042B (en) | 2016-10-27 | 2016-10-27 | Method for controlling volume, the apparatus and system of vehicle-mounted loudspeaker |
| PCT/CN2016/113664 WO2018076540A1 (en) | 2016-10-27 | 2016-12-30 | Volume control method, device and system for on-board speakers |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201610970269.1A CN106535042B (en) | 2016-10-27 | 2016-10-27 | Method for controlling volume, the apparatus and system of vehicle-mounted loudspeaker |
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| WO (1) | WO2018076540A1 (en) |
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| CN109471608A (en) * | 2018-10-31 | 2019-03-15 | 北京羽扇智信息科技有限公司 | A kind of method of adjustment and device of volume |
| CN109862468A (en) * | 2017-11-30 | 2019-06-07 | 长城汽车股份有限公司 | Interior controlling sound level of audio device zone control system and control method |
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| CN109922411A (en) * | 2019-01-29 | 2019-06-21 | 惠州市华智航科技有限公司 | Sound field control method and sound field control system |
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| CN110996238A (en) * | 2019-12-17 | 2020-04-10 | 杨伟锋 | Binaural synchronous signal processing hearing aid system and method |
| CN111327990A (en) * | 2018-12-13 | 2020-06-23 | 宝马股份公司 | Method, device and system for controlling multi-channel audio playing, vehicle and storage medium |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2018076540A1 (en) | 2018-05-03 |
| CN106535042B (en) | 2019-05-07 |
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