CN110789478B

CN110789478B - Vehicle-mounted sound parameter auxiliary adjusting method and device and audio processor

Info

Publication number: CN110789478B
Application number: CN201911109034.3A
Authority: CN
Inventors: 王凡; 陆恒良; 马桂林; 陶然
Original assignee: Iflytek Suzhou Technology Co Ltd
Current assignee: Iflytek Suzhou Technology Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-12-11
Anticipated expiration: 2039-11-13
Also published as: CN110789478A

Abstract

The invention discloses a vehicle-mounted sound parameter auxiliary adjusting method and device and an audio processor, and provides a corresponding vehicle-mounted sound system and a vehicle. The method comprises the steps of starting modes such as human voice positioning, sound field positioning, frequency response parameters and the like in a visual or auditory mode through a detected sound parameter adjusting triggering instruction; and then, according to the received parameter selection instruction aiming at any mode, outputting corresponding audio effect template audio and matched parameter information for a user to know the correlation between the parameter characteristic and the auditory sensation. The invention can open more detailed sound parameters to the user and integrate preset reference sound effects and description prompts which are easy to be understood by the user, thus not only enriching the tuning function of the vehicle-mounted sound, but also simplifying the speciality of the tuning function, thereby meeting the requirements and experiences of the user on the entertainment performance of the vehicle.

Description

Vehicle-mounted sound parameter auxiliary adjusting method and device and audio processor

Technical Field

The invention relates to the field of acoustics in a vehicle, in particular to a vehicle-mounted sound parameter auxiliary adjusting method and device and an audio processor.

Background

With the increasing demand for entertainment, vehicle audio systems are essential key components of entertainment equipment in vehicles for drivers and passengers in vehicles, and thus vehicle audio is receiving more and more attention.

The evaluation sound system can be summarized into two aspects of subjectivity and objectivity, the objective aspect comprises factors such as definition, distortion and noise, and the cognition of most people on the factors is consistent; subjective aspects include frequency response, sound localization, etc., which are related to preferences, which vary from person to person. Therefore, the vehicle-mounted sound system usually opens some basic sound parameter adjusting functions for users, so that the users can adjust the sound parameter according to the preferences of the users.

Currently, in the market, a car audio host (Head Unit) opens audio adjusting parameters for users, which are generally an equalizer function (such as 2-10 Band EQ) with a fixed frequency point and a Q value, a single frequency-response-related compensation function, and a sound concentration function (such as face/balance) based on a seat mode. However, in combination with field experience, it has been found that in actual use, it is difficult for most users to adjust the in-vehicle sound system to a satisfactory state based on the above-described existing parameter adjustment techniques.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a vehicle-mounted sound parameter auxiliary adjusting method, a device and an audio processor, and also correspondingly provides a vehicle-mounted sound system adopting the audio processor and a vehicle product carrying the corresponding vehicle-mounted sound system.

The technical scheme adopted by the invention is as follows:

in a first aspect, the invention provides a vehicle audio parameter auxiliary adjusting method, which includes:

detecting a sound parameter adjustment triggering instruction;

according to stereo set parameter adjustment trigger command, through image display or voice broadcast, open following one or more parameter regulation mode: a human voice positioning mode, a sound field positioning mode and a frequency response parameter mode;

detecting a parameter selection instruction for any mode sent by a user;

outputting a sound effect template audio matched with the selected parameters based on the received parameter selection instruction;

and outputting parameter adjustment guide information corresponding to the current audio of the sound effect template audio through image display or voice broadcasting.

In one possible implementation manner, the method further includes:

determining a plurality of adjustment options of the voice positioning mode according to the position of a seat in the vehicle, the range of space in the vehicle and the position of fixed facilities in the vehicle;

determining a plurality of adjusting options of the sound field positioning mode according to the position of a seat in the vehicle and the distance between the seat and a fixed facility in the vehicle;

determining a plurality of adjustment options for the frequency response parameter pattern based on a location of an in-vehicle fixture that interferes with sound propagation of the speaker.

In one possible implementation:

the voice positioning mode specifically comprises a multi-stage left-right positioning function and a multi-stage far-near positioning function;

the sound field positioning mode specifically comprises a multi-stage front-back positioning function;

the frequency response parameter mode specifically comprises a multistage bass function and a plurality of groups of equalizer functions.

In one possible implementation:

the multi-stage left-right positioning function comprises the following two preset position levels: positioning in front of the driver and the passengers and positioning in the middle of the vehicle;

the multi-stage distance positioning function comprises the following preset three position levels: a near distance position in front of the driver, a middle distance position based on a steering wheel and a far distance position based on an instrument panel;

the multi-stage front-rear positioning function comprises the following four preset position levels relative to the driver and passengers: front positioning, middle positioning between the front and the head, head positioning and rear positioning;

the multi-level bass function includes: a first bass level and a second bass level divided based on a preset frequency interval;

the multi-group equalizer function comprises the following preset five groups of adjustable parameters: low frequency volume sensing parameter, voice thickness parameter, voice volume sensing parameter, voice brightness parameter and high frequency overtone parameter.

In one possible implementation manner, the method further includes:

before detecting a sound parameter adjustment triggering instruction, basic tuning which tends to mean values of a human sound positioning mode, a sound field positioning mode and a frequency response parameter mode is performed in advance.

In one possible implementation manner, the method further includes:

monitoring whether all the parameter adjusting modes are completely adjusted;

if yes, outputting at least one section of synthesized sound effect reference audio integrating all the selected parameters;

and outputting the adjusting state information corresponding to each parameter in the synthesized sound effect reference audio through image display or voice broadcasting.

In one possible implementation manner, the method further includes:

after the adjustment state information is output, monitoring whether a correction instruction sent by a user is received;

if yes, correcting one or more parameters according to the correction instruction;

and updating and outputting the synthesized sound effect reference audio according to all the corrected current parameters.

In one possible implementation manner, the modifying one or more parameters according to the modification instruction includes:

adjusting corresponding parameters based on the correction instruction;

and adjusting other parameters in a self-adaptive manner according to the corrected parameters.

In a second aspect, the present invention provides an auxiliary adjusting device for parameters of a car audio, including:

the trigger instruction detection module is used for detecting a sound parameter adjustment trigger instruction;

the parameter adjusting module is used for adjusting the trigger instruction according to the detected sound parameters, and starting one or more of the following parameter adjusting modes through image display or voice broadcast: a human voice positioning mode, a sound field positioning mode and a frequency response parameter mode;

the parameter selection instruction detection module is used for detecting a parameter selection instruction which is sent by a user and aims at any mode;

the reference sound effect output module is used for outputting sound effect template audio matched with the selected parameters based on the received parameter selection instruction;

and the guide information output module is used for outputting parameter adjustment guide information corresponding to the current sound effect template audio through image display or voice broadcast.

In one possible implementation manner, the device further comprises a parameter adjusting function setting module;

the parameter adjusting function setting module specifically comprises one or more of the following units:

the voice positioning function setting unit is used for determining a plurality of adjusting options of the voice positioning mode according to the position of a seat in the vehicle, the range of space in the vehicle and the position of a fixed facility in the vehicle;

the sound field positioning function setting unit is used for determining a plurality of adjusting options of the sound field positioning mode according to the position of a seat in the vehicle and the distance between the seat and a fixed facility in the vehicle;

and the frequency response parameter function setting unit is used for determining a plurality of adjusting options of the frequency response parameter mode according to the position of the fixed facilities in the vehicle, which interfere the sound transmission of the loudspeaker.

In one possible implementation manner, the parameter adjusting module specifically includes: the system comprises a human voice positioning mode unit, a sound field positioning mode unit and a frequency response parameter mode unit;

the voice positioning mode unit specifically comprises: the voice adjusting device comprises a voice adjusting first subunit for executing a multi-stage left-right positioning function and a voice adjusting second subunit for executing a multi-stage far-near positioning function;

the sound field positioning mode unit specifically comprises: a sound field positioning subunit for executing a multi-stage front-back positioning function;

the frequency response parameter mode unit specifically includes: a bass adjustment subunit for performing a multi-level bass function and an equalizer adjustment subunit for performing a plurality of sets of equalizer functions.

In one possible implementation:

In one possible implementation manner, the apparatus further includes:

and the basic tuning module is used for performing basic tuning which tends to the respective mean value in advance aiming at the human voice positioning mode, the sound field positioning mode and the frequency response parameter mode before detecting the sound parameter adjustment triggering instruction.

In one possible implementation manner, the apparatus further includes:

the parameter adjusting state monitoring module is used for monitoring whether all the parameter adjusting modes are completely adjusted;

the synthetic sound effect output module is used for outputting at least one section of synthetic sound effect reference audio integrating all the selected parameters when the output of the parameter adjusting state monitoring module is yes;

and the comprehensive adjusting state information display module is used for outputting adjusting state information corresponding to each parameter in the synthetic sound effect reference audio through image display or voice broadcasting.

In one possible implementation manner, the apparatus further includes:

the correction instruction monitoring module is used for monitoring whether a correction instruction sent by a user is received or not after the adjustment state information is output;

the parameter modification module is used for modifying one or more parameters according to the modification instruction when the output of the modification instruction monitoring module is yes;

and the synthesized sound effect updating module is used for updating and outputting the synthesized sound effect reference audio according to the corrected current all parameters.

In one possible implementation manner, the parameter modification module specifically includes:

the parameter correction unit is used for adjusting corresponding parameters based on the correction instruction;

and the parameter self-adapting unit is used for self-adaptively adjusting other parameters according to the corrected parameters.

In a third aspect, the invention provides an audio processor, wherein the audio processor is configured to execute the in-vehicle sound parameter auxiliary adjusting method as described in any one of the above.

In a fourth aspect, the present invention provides a car audio system, including an audio source player, a power amplifier, and a speaker connected to the power amplifier, wherein the system further includes the audio processor as described above;

the audio processor is respectively connected with the sound source player and the power amplifier.

In one possible implementation manner, the system further includes:

the display device is used for displaying a sound parameter adjusting interface and is connected with the audio processor; and/or

And the voice processing device is used for adjusting the sound parameters and is connected with the audio processor.

In a fifth aspect, the present invention provides a vehicle, wherein the vehicle is provided with the in-vehicle audio system as described above.

The invention adjusts the trigger command by detecting the sound parameters, and opens one or more of a human sound positioning mode, a sound field positioning mode and a frequency response parameter mode in sequence or according to the intention of the trigger command in the form of image display or voice broadcast according to the trigger command; the voice positioning mode can further comprise a multi-stage left-right positioning function and a multi-stage far-near positioning function; the sound field positioning mode can further comprise a multi-stage front-back positioning function; the frequency response parameter mode may further include a multi-level bass function and a multi-group equalizer function; and then detecting a parameter selection instruction aiming at any one of the parameter adjustment modes sent by the user, outputting a sound effect template audio matched with the selected parameter for the user to refer based on the selection of the user, and synchronously outputting parameter adjustment guide information corresponding to the current sound effect template audio in an image display or voice broadcasting mode for the user to know the characteristics, the principle and the like of the selected parameter. Therefore, the invention provides a solution for assisting a user in adjusting vehicle-mounted sound parameters by combining hearing or vision technical means, more detailed sound parameter adjusting functions can be opened to the user, and preset reference audio and description prompts which are easy to be understood by non-professional users are integrated, so that the user can know the association between subjective hearing and tuning effects.

Drawings

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings, in which:

FIG. 1 is a flowchart of an embodiment of a method for adjusting parameters of a car audio system in an auxiliary manner according to the present invention;

FIG. 2 is a reference diagram of a specific adjustment object of the vehicle audio parameter auxiliary adjustment method provided by the invention;

FIG. 3 is a schematic diagram of at least one embodiment of a human voice multi-level left-right positioning function provided by the present invention;

FIG. 4 is a schematic reference diagram illustrating at least one embodiment of a multi-level human voice near-far positioning function provided by the present invention;

FIG. 5 is a schematic reference diagram illustrating at least one embodiment of a multi-stage front-to-back positioning function for an acoustic field provided by the present invention;

FIG. 6 is a reference diagram of a bass response curve of the multi-level bass function provided by the present invention;

FIG. 7 is a block diagram of an embodiment of an auxiliary adjusting device for parameters of a car audio according to the present invention;

FIG. 8 is a block diagram illustrating a parameter adjustment module according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an embodiment of a car audio system provided by the present invention;

FIG. 10 is a diagram illustrating EQ parameters provided by the present invention.

Description of reference numerals:

1 trigger instruction detection module, 2 parameter adjustment module, 3 parameter selection instruction detection module

4 reference sound effect output module 5 guide information output module 21 human sound positioning mode unit

22 sound field positioning mode unit 23 frequency response parameter mode unit

211 voice adjustment first subunit 212 voice adjustment second subunit

221 sound field positioning subunit 231 bass adjustment subunit 232 equalizer adjustment subunit

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

It should be noted that the tuning of car audio is intended to minimize adverse effects of the environment and speaker mounting location in the car on the audio effects heard by both ears of the user in the car, for example, the problem of sound deviation caused when the positions of the driver and speaker are not symmetrical, so that more accurate sound localization with respect to the sound source recording target and frequency response characteristics more suitable for a specific driver can be obtained through tuning. The key point of the invention lies in configuring which corresponding adjusting dimensions are configured according to the subjective auditory sensation of an acoustic level for a user to select and know, and realizing the adjustment by specific flow means.

It should be mentioned that the reason why the present invention creates the practical needs and experiences for the aforementioned users, which are not matched with the current car audio functions, is analyzed to have at least the following possible problems:

1) the above-mentioned regulatory function of present on-vehicle sound system itself is comparatively weak, does not organically combine operation friendliness and selection diversity.

2) The reason for this is that most users are not in acoustic or tuning profession, and the understanding of the sound effect and other related concepts is not accurate, and the adjustment function of the sound parameters cannot be fully and correctly utilized due to the fact that the association with the actual listening sensation cannot be established. For example, some users mistakenly consider "treble" to be the treble part of the human voice, and adjusting only the equalizer "treble" option based on this fact cannot meet the expectation of the user to adjust the treble part of the human voice. Therefore, current in-vehicle sound systems do not have a more professional and rich sound adjustment function for users.

That is, most of the current car audio host (Head Unit) products of manufacturers almost lack the tuning function meeting the above requirements, and the existing DTS-based sound effect tuning function is not comprehensive and has poor effect. Generally, the conventional car audio tuning method only obtains an audio in-ear effect through a set of filters and delay parameters, and the conventional tuning process is finished. As mentioned above, based on research and field experience, it is found that in actual use, it is difficult to satisfy most of the user expectations for the adjustment function of the car audio system because the existing car audio adjustment function is not powerful enough and less friendly and open parameter adjustment functions are available.

Based on the foregoing and background, the present invention provides at least one embodiment of a method for adjusting parameters of a car audio system, which, as shown in fig. 1, includes the following steps:

and step S1, detecting an acoustic parameter adjustment trigger instruction.

In particular, the sound parameter adjustment triggering instruction may be issued by the in-vehicle sound system and/or the user based on the scene requirements. The triggering instruction can be realized by voice control, graphical interface selection or physical key knobs and other devices. For example, after the car stereo is started by the user, the parameter adjustment triggering instruction facing the user may be automatically activated directly through a program, or the parameter adjustment triggering instruction may also be requested and activated by the user through subjective initiative in a manner of voice, touch screen, mechanical operation, or the like, which is not limited in this invention.

Step S2, according to the sound parameter adjustment triggering instruction, through image display or voice broadcast, start one or more of the following parameter adjustment modes: a human voice positioning mode, a sound field positioning mode and a frequency response parameter mode.

Once the sound parameter adjustment triggering command is triggered, it indicates that there is a need to adjust the sound parameters, whether automatically by the system or actively by the user, and the user can be presented with the parameter adjustment mode based on the image or form. It should be noted that, no matter what specific parameter adjustment mode is, the sound parameter adjustment trigger command may be considered as a reference, and the specific parameter adjustment mode may be started in sequence or as needed, that is, the presentation form and the order of the specific parameter adjustment mode may be changed according to the requirements of the actual scene, for example, the specific parameter adjustment modes are listed in an image display manner so that the user can select a desired mode and function from the specific parameter adjustment modes, or one parameter adjustment mode may be started one by one through a voice broadcast manner, and an adjustment option may be provided to the user through a voice operation manner.

It should be noted that, in order to find the aforementioned problems in the prior art and the substantial reasons behind the problems, and accordingly determine each parameter adjustment mode and function that need to be opened, the embodiments of the present invention may employ sound preferences, sound operation feedback, and auditory feelings of vehicle users to investigate, and particularly, the auditory feelings are relatively subjective acoustic indicators, so that data statistics and analysis can be effectively performed on a certain scale before the embodiments of the present invention are implemented. Of course, those skilled in the art will understand that the specific investigation process, manner and accuracy are only the design premise of the technical solution of the present invention, and are not within the scope of the technical implementation of the present embodiment. It should be noted that, regardless of the size, form, content and sample selection of the survey, the actual needs of the real user are reflected in advance from the data, which is a precondition for designing and assisting the user to adjust the sound parameters.

The invention provides at least three parameter adjusting modes for implementation through early investigation and analysis, wherein the three parameter adjusting modes comprise a human voice positioning mode, a sound field positioning mode and a frequency response parameter mode; the invention combines the existing tuning technology, user requirement investigation, different vehicle type structures, interior trim, and layout of speakers in the vehicle, and provides the following implementation references:

(1) the human voice positioning emphasizes the requirement of the position of the human voice in the sound source on the auditory effect of the vehicle interior passenger, so that a plurality of adjustment options of the human voice positioning mode, such as a multi-stage left-right positioning function and a multi-stage far-near positioning function, can be determined according to the position of a vehicle interior seat for representing the position of the vehicle interior passenger, the range of the vehicle interior space for integrally specifying a certain space position (such as the midpoint, the middle line, the corner point, the diagonal line and the like of the vehicle interior space) in the vehicle and the position of a vehicle interior fixing facility used as a reference object. Still further combining with the actual needs of the user, the multi-level left-right positioning function may further include, but is not limited to, the following two preset position levels: positioning in front of the driver and the passengers and positioning in the middle of the vehicle; the multi-stage distance positioning function may further include, but is not limited to, the following preset three position stages: the in-vehicle fixed facilities may refer to a seat itself, a headrest on the seat, a steering wheel, an instrument panel, a center console, a shift lever, a door window, a roof, and the like, which will not be described herein below in detail, but need to be supplemented.

(2) Sound field localization emphasizes the requirement of the overall position of the sound source for the vehicle occupant in terms of auditory effect, so that a plurality of adjustment options of the sound field localization mode, such as a multi-stage front-rear localization function, can be determined according to the position of the vehicle seat for representing the position of the vehicle occupant and the distance between the seat and the vehicle interior fixed facility, wherein the vehicle interior fixed facility refers to the above description. Still further in combination with actual needs of the user, the multi-stage front-back positioning function may further include, but is not limited to, the following four preset position levels with respect to the occupant: a front orientation, an intermediate orientation between the front and head, a head orientation, and a rear orientation, as will be described in more detail below.

(3) The frequency response parameter emphasizes the output requirements of the passengers in the vehicle on the details of the sound source in terms of auditory effect, so that a plurality of adjustment options of the frequency response parameter mode, such as a multistage bass function and a plurality of groups of equalizer functions, can be determined according to the position of the fixed facilities in the vehicle which interfere with the sound propagation of the loudspeaker. In further combination with actual needs of users, the multi-level bass function may further include, but is not limited to, a first bass level and a second bass level divided based on a preset frequency interval; the multi-group equalizer function may also include, but is not limited to, the following five preset adjustable sets of parameters: the low frequency volume sensing parameter, the voice thickness parameter, the voice volume sensing parameter, the voice brightness parameter, and the high frequency overtone parameter will be described in detail below.

It should be noted that, for each mode function setting, in other embodiments, multiple factors may be combined, that is, the basis of tuning is not limited to the seat position, the in-vehicle fixed facility, and the like, and the intrinsic properties and characteristics of different sound systems, such as the number configuration of speakers, the aging speed of speakers, the model and capability of power amplifier, may also be considered, and of course, the total volume of the in-vehicle space, the in-vehicle noise, the number of passengers, and the like may also be considered comprehensively, and the present invention is not limited thereto. In connection with the reference schematic provided in fig. 2, the present invention provides, in some preferred aspects, a more specific multi-level, multi-group partitioning scheme:

(1) human voice positioning mode

a. The positioning of the vocal portion of the output audio source in the lateral dimension (i.e., in the left-right direction of the user for use of the vehicle) may include positioning in front of the user and biased toward a vehicle neutral position. In other words, the aforementioned multi-level left-right positioning function at least includes the following two preset position levels: relative to the front of the occupant and the center of the vehicle.

In combination with the voice positioning parameter adjustment mode shown in fig. 3 and presented in an image display manner, at least two effects can be modulated by using the existing tuning technology, namely positioning in front of a driver and in the middle of a vehicle, so that a user can select a required specific voice left-right positioning function parameter by clicking the part I or the part II in the diagram, and of course, the skilled person can understand that the initial part I or the part II can be defaulted after the adjustment mode is started, and the currently selected state is indicated by color change after the adjustment mode is selected by the user. If the voice broadcasting is used for realizing the voice broadcasting in other embodiments, the current default voice position can be informed to the user in a voice audio mode, and the user can be informed of the voice left-right adjustment function options selected by the user.

b. The positioning of the vocal part in the output audio source in the longitudinal dimension (i.e. in the front-back direction of the user for the use of the vehicle) may include a short-distance position, a middle-distance position and a long-distance position, and as will be appreciated by those skilled in the art, as the above three distance-related level divisions are relative to the position of the occupant, in other preferred embodiments of the present invention, the aforementioned multi-level far-near positioning function includes the following three preset position levels: a near distance to the driver's face, a medium distance based on the steering wheel, and a far distance based on the dashboard. It should be noted that if the reference object is for users in different seats, the reference objects in the near, middle and far positions will be changed accordingly.

On the basis of the above preferred embodiment, in combination with the voice location parameter adjustment mode presented in the image display manner shown in fig. 4, at least five further refined effects can be modulated by using the existing tuning technology, namely, the voice is subdivided into five position levels from the front to the far. Thus, the user may select the desired specific vocal range function parameter by clicking the level option arrow in the figure, although it will be understood by those skilled in the art that the adjustment mode may default to an initial neutral position level upon activation and indicate the currently selected state with a color change upon selection by the user. If the voice broadcasting is used for realizing the voice broadcasting in other embodiments, the current default voice position can be informed to the user in a voice audio mode, and the voice distance adjusting function options selected by the user can be informed to the user.

To sum up, the implementation of adjusting the human voice localization is to adjust the frequency loudness ratio of the left, right, front, and back positions of the human voice part in the sound source, as described above, the tuning method itself is the prior art, and is not described herein again, but it still needs to be described that the human voice parts of different sound sources may have position differences in actual operation, and the position change of a single seat itself may also cause the difference of the human voice positions, so that the implementation goal in implementation can only be achieved by ensuring that the change of the human voice from near to far, and from front to middle is obvious and uniform.

(2) Sound field localization mode

Sound field localization is similar to the aforementioned human sound localization, and may also be adjusting loudness ratio of the sound field at different positions, where the related tuning technology itself belongs to the prior art, and is not described here again. However, in the embodiment of the present invention, the sound field localization mode may specifically consider that the localization of the sound field of the output sound source is at different position levels in the longitudinal dimension (i.e., in the front-rear direction of the user for the use of the vehicle), for example, the sound field localization mode is subdivided with respect to the front and rear of the user in the vehicle. In other words, the aforementioned multi-level left-right positioning function may include at least the following four preset levels of position relative to the occupant: a front orientation, a middle orientation between the front and the head, a head orientation, and a rear orientation.

In conjunction with the sound field localization parameter adjustment mode presented in an image display manner as shown in fig. 5, at least four effects can be modulated using the existing tuning technique, the sound field localization is divided into four positions from front to back, the front localization is such that the driver feels the sound from the front, the head localization is such that the driver feels the sound focused on the head (e.g., the sense of hearing of headphones), the middle localization between the front and the head is a position in front of the two, and the back localization is such that the driver feels the sound from the back.

In this way, the user can select the required specific sound field front-back positioning function parameters by clicking the area range in the diagram, of course, the skilled person can understand that the initial is the middle positioning after the adjustment mode is started, and the currently selected state is indicated by the color change after the user selects; or the order changes as illustrated in figure 5. If the voice broadcast is implemented in other embodiments, the user can be informed of the current default sound field position in a voice audio mode, and the user can be informed of the sound field front-back adjustment function options available for selection.

(3) Frequency response dependent parametric mode

a. The adjustment of bass effect in the output sound source can be based on the dimension of the low frequency range, so that multi-level bass balance adjustment is realized, and two levels are divided in one embodiment of the invention: bass of about 50 Hz-100 Hz can be used as a first bass level and can be called as a punch base, and the user can feel relatively compact by the bass with higher strength, higher speed and the like; furthermore, bass below 50Hz may be used as the second bass level, which may be called deep bass, and this bass may give the user a relatively more shocking, slower speed and may have a tailing sensation.

In conjunction with fig. 6, a two-stage bass effect response curve, namely, a punch band and a deep band, is prepared by using a conventional tuning technique, the tuning process is to balance the punch band and the deep band, fig. 6 is only an exemplary reference, and the present invention is not limited thereto, but it should be noted that, in actual operation, a user may select a certain level of bass effect through an image or a voice, and of course, a person skilled in the art may understand that, after the tuning mode is started, the punch band initially accepted by most samples may be defaulted, and the tuning mode is also not limited thereto.

b. The adjustment of other frequency response related parameters in the output audio source is presented in a preferred embodiment of the invention in the form of a multi-bank equalizer, specifically, in this embodiment five sets of equalizer adjustment dimensions are provided: low frequency volume perception, vocal thickness, vocal volume perception, vocal brightness, and high frequency overtones. It should be additionally explained that, firstly, the tuning of the low frequency volume sensation is different from the bass balance, and the punch base or deep base is not considered, and is considered only in the volume sensation aspect; secondly, the thickness of the human voice is related to the tone height of an deductior in the sound source (such as the difference between the male voice and the female voice), generally speaking, the frequency interval of about 200Hz to 400Hz can affect the listening feeling of the thickness of the human voice, and meanwhile, the adjustment of the parameter can also make the listening feeling of the user generate certain fuzzy feeling; thirdly, statistics shows that most user samples have large requirements on human voice volume, and generally, the frequency interval of about 500Hz to 1500Hz influences the listening sensation of the human voice volume; fourthly, the human voice brightness can relate to the more deliberate 'tooth sound' of most user samples, because the frequency interval of about 6KHz to 7KHz can influence the hearing sense of the human voice brightness generally, and the interval is also the occurrence area of the 'tooth sound'; fifth, generally, around 10KHz is the frequency range of high frequency overtones and some metal percussion instruments, but different source types may behave differently.

Referring to fig. 10 in conjunction with the step shown in fig. 2, at least one preferred embodiment of the present invention makes the above five sets of equalizer parameter schematic by the existing tuning technique, i.e. five sets of EQ, EQ1 that can be adjusted by the user: low frequency perception, manifested as the loudness of bass, such as the frequency range of bass, drums, etc.; EQ 2: the human voice thickness can be adjusted to improve the human voice texture, but the human voice texture is improved greatly and the fuzzy texture is possibly generated; EQ 3: the human voice sense is expressed as the loudness of human voice; EQ 4: the human voice brightness can be expressed as the whole brightness of the whole music and is also the main component of the tooth sound; EQ 5: high frequency overtones, which may be manifested as the frequency of certain metal percussion instruments in a song.

As shown in fig. 1, step S3 detects a parameter selection command issued by the user for any of the above modes.

In the above description, the parameter selection instruction is referred to herein as an instruction for activating a sound effect, which is selected and determined by a user from the functional parameters described above as needed. In actual operation, the parameter selection instruction sent by the user may be various, for example, the foregoing forms are performed by clicking a graphical interface, operating soft and hard keys and a knob, or may also be performed directly by a voice instruction, and the present invention is not limited thereto.

And step S4, outputting sound effect template audio matched with the selected parameters based on the received parameter selection instruction.

After a certain parameter of a certain function is selected by the user, in order to make the user establish the relationship between the real auditory sensation and the selected parameter, the invention provides that a sound effect template audio matched with the effect of the parameter is output to the selected parameter as a reference. In actual operation, audio segments corresponding to the functional parameters in the sound parameter modes mentioned above may be stored in advance, for example, the audio segment for locating human voice may select music with prominent human voice and no disorder; the audio clips for sound field positioning can select songs with rich accompaniment; an audio segment for a bass effect may be selected as a drumbeat segment; the EQs of each group can also select sound effect audio and the like which are adaptive to the parameter values of each group. The invention does not limit the selection of the audio of the sound effect template.

And step S5, outputting parameter adjustment guide information corresponding to the current sound effect template audio through image display or voice broadcast.

In order to further embody the 'auxiliary property', most non-professional users can understand the meaning of the sound parameters, the invention provides that the adjustment guide information of the parameters can be output synchronously but is not limited corresponding to each sound effect template audio. For example, the corresponding musical instrument, waveform and/or text guide information is displayed in the form of image, and the following text can be displayed by taking the aforementioned two-stage bass effect as an example: when the punch base is selected, the sound at the moment of beating the drum head is more prominent, and the attenuation of aftershock of the drum head is faster and the time is short, or when the deep base is selected, the sound at the moment of beating the drum head is not obviously enhanced, but the attenuation of the aftershock of the drum head is slower, the time is long and the tail feeling is generated, namely, the sound is explained to the user by matching with the currently played sound effect template audio. Of course, the adjustment guiding information of each parameter can also be informed to the user in a direct voice broadcasting mode.

In some preferred embodiments, before detecting the sound parameter adjustment triggering command, the present invention may perform basic tuning that tends to a mean value of preset parameter adjustment modes, such as but not limited to the human voice positioning mode, the sound field positioning mode, and the frequency response parameter mode, in advance. In practical application, basic tuning operation can be performed before the vehicle-mounted sound equipment leaves a factory, and the aim of the operation process can be to add equal loudness compensation to a relatively smooth curve as far as possible according to the requirement counted by most sample data so that the initial tuning effect reaches the intermediate value of each functional index, the operation amount of user adjustment can be reduced, and only up-and-down floating adjustment is needed. The target of the base tuning in at least one embodiment of the invention may be referred to as follows: the human voice is positioned as the front and middle distance; the sound field is positioned in front; the frequency response related parameters are the punch bass, and the balance parameters of low frequency volume sensation, human voice thickness, human voice volume sensation, human voice brightness and high frequency overtone are all medium.

In addition, in order to further facilitate the user to know the overall effect of the selected parameter from the whole world, in other embodiments of the present invention, it is further proposed that the foregoing method may further include the following implementation process:

monitoring whether all the parameter adjusting modes are adjusted in real time, if it is monitored that all the relevant parameters are selected by a user, outputting at least one section of synthesized sound effect reference audio integrating all the selected parameters, wherein the synthesized sound effect reference audio can be different from the audio template aiming at a certain specific mode, but can pre-select a music clip with relatively balanced factors such as voice, accompaniment and drum sound, and pre-process the parameters of the audio clip to enable the corresponding parts such as the voice, the accompaniment and the drum sound to be in an adjustable state, and then inputting all the parameters selected by the user into the music clip to simulate the synthesized sound effect facing the parameters selected by the current user. Of course, it will be understood by those skilled in the art that the techniques for adjusting portions of audio are well known in the art and thus do not create implementation difficulties in actual practice. Then, in order to make the user clearly associate the synthesized audio effect with the selected parameters, as described above, the adjustment status information corresponding to the parameters in the synthesized audio effect reference audio may be output in the form of image display or voice broadcast, that is, the selected parameters are displayed to the user in cooperation with the synthesized audio effect.

Based on this, in other preferred embodiments, in order to further enhance the interaction effect between the user and the sound, the method of the present invention may further include the following steps: after the adjustment status information is output, whether a correction instruction sent by the user is received or not is monitored in real time, because for a non-professional user, even if a required effect can be determined when a certain mode parameter is selected independently, the output effect of combining the effects together cannot be accurately grasped, so that a situation that the comprehensive effect is not expected by the user occurs, accordingly, the user can examine the displayed selected parameters while combining the currently played synthesized sound effect reference audio, and once the effect of some parameters is considered to be poor in overall performance, a correction instruction can be given. Then, the sound equipment can correct one or more parameters according to the correction instruction of the user; in order to give example feedback to the user, the aforementioned synthetic sound effect reference audio can be updated and output according to all the modified current parameters, that is, the re-simulated synthetic sound effect is given again for the user to listen in on trial, and the updated parameter selection states can be shown again correspondingly. Finally, the method can be further supplemented, and considering that for a non-professional user, the overall auditory effect is inevitably changed due to the fact that parameter adjustment is performed again on the basis of the synthesized sound effect, and in order to avoid the defect of complex circulation that the overall auditory effect which is renewed is poor again and the user needs to repeatedly correct the parameters, then repeatedly listen to the synthesized sound effect and repeatedly adjust the parameters, in other preferable schemes of the method, the method can be combined with an adaptive tuning technology, namely after corresponding parameters are adjusted according to the correction instruction, other parameters which are not corrected at this time can be adaptively adjusted according to the corrected parameters, so that the purpose of automatically optimizing the overall effect is achieved, the user operation is facilitated, and meanwhile, a more professional tuning effect can be given.

In summary, the invention adjusts the trigger command by detecting the sound parameters, and starts one or more of the human sound positioning mode, the sound field positioning mode and the frequency response parameter mode in sequence or according to the intention of the trigger command in the form of image display or voice broadcast according to the trigger command; the voice positioning mode comprises a multi-stage left-right positioning function and a multi-stage far-near positioning function; the sound field positioning mode comprises a multi-stage front-back positioning function; the frequency response parameter mode comprises a multi-stage bass function and a plurality of groups of equalizer functions; and then detecting a parameter selection instruction aiming at any function in the parameter adjustment mode sent by the user, outputting a sound effect template audio matched with the selected parameter for the user to refer based on the selection of the user, and synchronously outputting parameter adjustment guide information corresponding to the current sound effect template audio in an image display or voice broadcasting mode for the user to know the characteristics, the principle and the like of the selected parameter. Therefore, the invention provides a solution for assisting a user in adjusting vehicle-mounted sound parameters by combining hearing or vision technical means, more detailed sound parameter adjusting functions can be opened to the user, and preset reference audio and description prompts which are easy to be understood by non-professional users are integrated, so that the user can know the association between subjective hearing and tuning effects.

Corresponding to the above embodiments and preferred solutions, the present invention further provides an embodiment of at least one vehicle audio parameter auxiliary adjusting device, as shown in fig. 7, which may specifically include the following components:

the trigger instruction detection module 1 is used for detecting a sound parameter adjustment trigger instruction;

parameter adjustment module 2 for according to detect stereo set parameter adjustment trigger command, through image display or voice broadcast, open following one or more parameter adjustment mode: a human voice positioning mode, a sound field positioning mode and a frequency response parameter mode;

the parameter selection instruction detection module 3 is used for detecting a parameter selection instruction which is sent by a user and aims at any mode;

the reference sound effect output module 4 is used for selecting an instruction based on the received parameters and outputting sound effect template audio matched with the selected parameters;

and the guide information output module 5 is used for outputting parameter adjustment guide information corresponding to the current sound effect template audio through image display or voice broadcast. It should be noted here that the guide information output module 5 is an output result from the parameter selection instruction detecting module 3 in the example of fig. 7, but it is considered that the guide information output module 5 is associated with the reference sound effect output module 4 in other embodiments.

Further, in one possible implementation manner, the apparatus further includes a parameter adjusting function setting module;

Further, in one possible implementation, referring to fig. 8, there is shown:

the parameter adjusting module 2 may specifically include, but is not limited to: a human voice positioning mode unit 21, a sound field positioning mode unit 22 and a frequency response parameter mode unit 23;

the voice positioning mode unit 21 specifically includes: a voice adjustment first subunit 211 for performing a multi-level left-right positioning function and a voice adjustment second subunit 212 for performing a multi-level near-far positioning function; the multi-level left-right positioning function comprises the following two preset position levels: positioning in front of the driver and the passengers and positioning in the middle of the vehicle; the multi-stage distance positioning function comprises the following preset three position levels: a near distance position in front of the driver, a middle distance position based on a steering wheel and a far distance position based on an instrument panel;

the sound field positioning mode unit 22 specifically includes: a sound field positioning subunit 221 for performing a multi-stage front-rear positioning function; wherein the multi-stage front-rear positioning function comprises four preset position levels relative to the driver and the passenger as follows: front positioning, middle positioning between the front and the head, head positioning and rear positioning;

the frequency response parameter mode unit 23 specifically includes: a bass adjustment subunit 231 for performing a multi-level bass function and an equalizer adjustment subunit 232 for performing a plurality of sets of equalizer functions; wherein the multi-level bass function includes: a first bass level and a second bass level divided based on a preset frequency interval; the multi-group equalizer function comprises the following preset five groups of adjustable parameters: low frequency volume sensing parameter, voice thickness parameter, voice volume sensing parameter, voice brightness parameter and high frequency overtone parameter.

Further, in one possible implementation manner, the apparatus may further include:

Further, in one possible implementation manner, the apparatus further includes:

Further, in one possible implementation manner, the parameter modification module specifically includes:

It should be understood that the division of the above components of the car audio parameter auxiliary adjusting device is only a division of logical functions, and the actual implementation can be wholly or partially integrated into one physical entity or can be physically separated. And these components may all be implemented in software invoked by a processing element; or may be implemented entirely in hardware; and part of the components can be realized in the form of calling by the processing element in software, and part of the components can be realized in the form of hardware. For example, a certain module may be a separate processing element, or may be integrated into a certain chip of the electronic device. Other components are implemented similarly. In addition, all or part of the components can be integrated together or can be independently realized. In implementation, each step of the above method or each component above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above components may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), one or more microprocessors (DSPs), one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, these components may be integrated together and implemented in the form of a System-On-a-Chip (SOC).

In view of the foregoing examples and their preferred embodiments, it will be appreciated by those skilled in the art that in practice, the invention may be practiced in a variety of embodiments, and that the invention is illustrated schematically in the following vectors:

(1) an audio processor for a car stereo, wherein the audio processor can execute the car stereo parameter auxiliary adjusting method; alternatively, the audio processor may include a car audio parameter auxiliary adjustment device as described above. The hardware structure of the audio processor itself can be increased or decreased based on the related components of the existing car audio system, and the invention is not limited herein.

(2) The preferred embodiment of the car audio system shown in fig. 9 includes an existing audio source player, a power amplifier, and a speaker connected to the power amplifier, and the car audio system may further include an audio processor as described above. Specifically, the audio processor is connected to the audio source player and the power amplifier, respectively, and in one possible implementation (illustrated in fig. 9 by a dashed line), the system may further include: the display device is used for displaying a sound parameter adjusting interface and is connected with the audio processor; and/or, a voice processing device for sound parameter adjustment, wherein the voice processing device is connected with the audio processor.

Wherein, the sound source player can be used for playing conventional sound sources (USB, radio, AUX, etc.) and the sound effect template audio; the power amplifier can adopt the existing multi-channel audio power amplification product; the aforementioned speakers may be used in a multi-speaker system as shown in fig. 9, because the more speakers are provided and the more various layout arrangements in the vehicle are provided, the more preferable and more preferable sound effects are modulated. In the actual operation, the display screen and the touch screen of a common automobile sound device or other audio-visual entertainment devices can be adopted by the display device; the sound parameter adjusting interface can consider a human-computer interaction control interface adopting a known automobile sound system, but needs to be provided with a functional interface, indication information and the like corresponding to the invention; regarding the speech processing device, the speech processing device may perform speech control based on the current mature speech acquisition and recognition technologies, for example, software and hardware products or a remote processing platform, such as a microphone array technology, semantic understanding based on artificial intelligence, and high-fidelity speech output, which is not difficult for those skilled in the art to implement.

Based on the above, the following can be referred to as the processing flow of some car audio systems provided by the present invention: the sound source player provides a conventional sound source, then sound source signals are transmitted to a plurality of loudspeakers through the basic tuning and the specific sound parameter adjusting function introduced in the foregoing in the audio processor, the outputted sound source after tuning is transmitted to the loudspeakers through the power amplifier to be played outside, and a user can adjust corresponding parameters through the audio processor in the process.

(3) Finally, the invention also provides a vehicle equipped with the vehicle-mounted sound system, wherein the vehicle is not limited to the existing small-sized automobile forms illustrated in the drawings of the embodiment of the invention, and other transportation vehicles suitable for the vehicle-mounted sound system, such as a heavy vehicle, a special vehicle, a medium-large passenger vehicle, a special compartment in a public transportation vehicle and the like, can be considered.

In the embodiments of the present invention, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.

Those of skill in the art will appreciate that the various modules, elements, and method steps described in the embodiments disclosed in this specification can be implemented as electronic hardware, combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In addition, the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other. In particular, for embodiments of devices, apparatuses, etc., since they are substantially similar to the method embodiments, reference may be made to some of the descriptions of the method embodiments for their relevant points. The above-described embodiments of devices, apparatuses, etc. are merely illustrative, and modules, units, etc. described as separate components may or may not be physically separate, and may be located in one place or distributed in multiple places, for example, on nodes of a system network. Some or all of the modules and units can be selected according to actual needs to achieve the purpose of the above-mentioned embodiment. Can be understood and carried out by those skilled in the art without inventive effort.

The structure, features and effects of the present invention have been described in detail with reference to the embodiments shown in the drawings, but the above embodiments are merely preferred embodiments of the present invention, and it should be understood that technical features related to the above embodiments and preferred modes thereof can be reasonably combined and configured into various equivalent schemes by those skilled in the art without departing from and changing the design idea and technical effects of the present invention; therefore, the invention is not limited to the embodiments shown in the drawings, and all the modifications and equivalent embodiments that can be made according to the idea of the invention are within the scope of the invention as long as they are not beyond the spirit of the description and the drawings.

Claims

1. A vehicle-mounted sound parameter auxiliary adjusting method is characterized by comprising the following steps:

detecting a sound parameter adjustment triggering instruction;

detecting a parameter selection instruction for any mode sent by a user;

outputting a sound effect template audio matched with the selected parameters based on the received parameter selection instruction; the sound effect template audio is used for enabling a user to establish association between the real auditory sensation and the selected parameters;

2. The car audio parameter auxiliary adjusting method according to claim 1, further comprising:

3. The vehicle audio parameter auxiliary adjusting method according to claim 2, characterized in that:

4. The vehicle audio parameter auxiliary adjusting method according to claim 3, characterized in that:

5. The car audio parameter auxiliary adjusting method according to claim 1, further comprising:

6. The vehicle audio parameter auxiliary adjusting method according to any one of claims 1 to 5, further comprising:

monitoring whether all the parameter adjusting modes are completely adjusted;

7. The car audio parameter auxiliary adjusting method according to claim 6, further comprising:

8. The vehicle audio parameter auxiliary adjusting method according to claim 7, wherein the correcting one or more parameters according to the correction instruction comprises:

adjusting corresponding parameters based on the correction instruction;

9. The utility model provides a vehicle audio parameter auxiliary regulating device which characterized in that includes:

the reference sound effect output module is used for outputting sound effect template audio matched with the selected parameters based on the received parameter selection instruction; the sound effect template audio is used for enabling a user to establish association between the real auditory sensation and the selected parameters;

10. An audio processor, wherein the audio processor is configured to perform the car audio parameter auxiliary adjusting method according to any one of claims 1 to 8.

11. A car audio system comprising an audio source player, a power amplifier, and a speaker coupled to the power amplifier, the system further comprising the audio processor of claim 10;

12. The car audio system of claim 11, wherein the system further comprises:

13. A vehicle, characterized in that the vehicle is provided with the in-vehicle audio system of claim 11 or 12.