CN114339546A - Vehicle sound playing method and device, storage medium and equipment - Google Patents
Vehicle sound playing method and device, storage medium and equipment Download PDFInfo
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- CN114339546A CN114339546A CN202111679086.1A CN202111679086A CN114339546A CN 114339546 A CN114339546 A CN 114339546A CN 202111679086 A CN202111679086 A CN 202111679086A CN 114339546 A CN114339546 A CN 114339546A
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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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
Abstract
The application discloses a vehicle sound playing method, a device, a storage medium and equipment, wherein the method comprises the following steps: firstly, collecting target sound to be played; the target sound is collected in-vehicle noise data when a vehicle of a preset vehicle type runs to different constant working conditions, and then the target sound is preprocessed to obtain preprocessed target sound so as to eliminate popping sound generated when the target sound is played; then, acquiring the rotating speed of the target vehicle, and determining the playing frequency of the target sound according to the rotating speed and the corresponding relation between the preset rotating speed and the playing frequency; the target sound can be reproduced in the target vehicle according to the reproduction frequency. Because this application not only utilizes the target sound under the different invariable operating mode of collection to realize the sound simulation effect of the vehicle under the operating mode entirely, when the speed of a motor vehicle is in certain invariable operating mode moreover and needs certain section sound sample of repeated broadcast, also can not produce the crackle for user's listening sense is more natural, and then has improved user's driving experience.
Description
Technical Field
The present application relates to the field of vehicle technologies, and in particular, to a method, an apparatus, a storage medium, and a device for playing a vehicle sound.
Background
Along with the improvement of living standard of people and the rapid development of social economy, the utilization rate of automobiles is gradually increased, more automobiles enter the lives of people, and great convenience is brought to all aspects of the lives of people. However, with the continuous development of automobile technology and manufacturing process, the noise level in the automobile is reduced year by year. However, the quiet driving environment also causes the automobile to lack the power feeling brought by the engine sound, and reduces the driving pleasure of partial consumers. Therefore, a method of simulating and playing the sound effect of the vehicle can be adopted, and the sound is actively produced through the loudspeaker in the vehicle, so that the quality of the sound in the vehicle is improved, and the driving pleasure is improved.
At present, the sound effect and sound simulation playing method for the vehicle generally comprises two methods: one is a formula method, although the method is simple in design, only a limited number of single-frequency signals can be generated, and full-band sound simulation cannot be realized; the other is a particle synthesis algorithm, although the algorithm can realize full-band sound simulation, the design is complex, the design is not good, and 'popping sound' can be generated when different sound segments are switched, and due to the fact that the time length of the segmented sound segments is very short, when the working condition of the vehicle is in a certain constant working condition, the sound of repeatedly playing a certain segment sounds very unnatural, and the driving experience of a user is reduced.
Therefore, how to realize intelligent analog playing of vehicle sound so that a user can hear more naturally and the driving experience of the user is improved is a technical problem to be solved urgently at present.
Disclosure of Invention
The embodiment of the application mainly aims to provide a vehicle sound playing method, a vehicle sound playing device, a storage medium and equipment, which can realize intelligent simulation playing of vehicle sound, enable a user to have a more natural listening feeling, and further improve the driving experience of the user.
The embodiment of the application provides a vehicle sound playing method, which comprises the following steps:
collecting target sound to be played; the target sound is collected noise data in the vehicle when the vehicle of a preset vehicle type runs to different constant working conditions;
preprocessing the target sound to obtain a preprocessed target sound so as to eliminate popping generated when the target sound is played;
acquiring the rotating speed of a target vehicle, and determining the playing frequency of the preprocessed target sound according to the rotating speed of the target vehicle and the corresponding relation between the preset rotating speed and the playing frequency;
and playing the preprocessed target sound in the target vehicle according to the playing frequency.
In a possible implementation manner, the preprocessing the target sound to obtain a preprocessed target sound so as to eliminate pop sound generated when the target sound is played includes:
dividing the target sound into a first sound segment and a second sound segment in sequence; the sound time lengths of the first sound segment and the second sound segment are both more than 1 second;
setting the first 0.5 second sound of the first sound segment into a fade-in mode to obtain an updated first sound segment; setting the sound of the second sound segment in the last 0.5 second to be a fade-out mode to obtain an updated second sound segment;
and exchanging the sequence of the updated first sound segment and the updated second sound segment, and overlapping the updated first sound segment and the updated second sound segment for 0.5 second to obtain a preprocessed target sound so as to eliminate the popping sound generated when the target sound is played.
In a possible implementation manner, the acquiring a target sound to be played includes:
when the preset vehicle type vehicle is in an idle working condition, a constant low-speed working condition, a constant medium-speed working condition and a constant high-speed working condition, respectively collecting first target sound, second target sound, third target sound and fourth target sound to be played, and recording a first rotating speed interval, a second rotating speed interval, a third rotating speed interval and a fourth rotating speed interval which respectively correspond to the first rotating speed interval, the second rotating speed interval, the third rotating speed interval and the fourth rotating speed interval;
wherein, a rotating speed overlapping interval exists between the adjacent two of the first rotating speed interval, the second rotating speed interval, the third rotating speed interval and the fourth rotating speed interval;
after the obtaining the rotation speed of the target vehicle, the method further comprises:
judging whether the rotating speed of the target vehicle is in the rotating speed overlapping interval or not;
and if so, switching and playing the target sound corresponding to the previous rotating speed interval and the target sound corresponding to the next rotating speed interval of the rotating speed overlapping interval.
In a possible implementation manner, the switching and playing the target sound corresponding to the previous rotating speed section and the target sound corresponding to the next rotating speed section of the rotating speed overlapping section includes:
and the target sound corresponding to the previous rotating speed interval of the rotating speed overlapping interval is played in a fade-out mode, and the target sound corresponding to the next rotating speed interval of the rotating speed overlapping interval is played in a fade-in mode.
In a possible implementation, the method further includes:
acquiring a first preset number of accelerator pedal strokes of the target vehicle;
determining whether the target vehicle is in an acceleration or deceleration working condition or not according to the first preset number of accelerator pedal strokes; and if so, playing the preprocessed target sound in the target vehicle.
In one possible implementation, after the obtaining of the first preset number of accelerator pedal strokes of the target vehicle, the method includes:
sequentially moving a first preset number of accelerator pedal strokes of the target vehicle forward by one bit to obtain a first preset number of shifted accelerator pedal strokes;
determining whether the target vehicle is in an acceleration or deceleration working condition according to the first preset number of accelerator pedal strokes; if yes, playing the target sound in the target vehicle, wherein the playing comprises the following steps:
calculating the difference value between the latest accelerator pedal stroke and the most lagging accelerator pedal stroke in the shifted first preset number of accelerator pedal strokes; if the difference is smaller than a first preset threshold, determining that the target vehicle is in a deceleration working condition, or if the difference is larger than a second preset threshold, determining that the target vehicle is in an acceleration working condition, and playing the preprocessed target sound in the target vehicle.
In a possible implementation, the method further includes:
acquiring a second preset number of instantaneous vehicle speeds of the target vehicle;
determining whether the target vehicle is in an acceleration or deceleration working condition or not according to the second preset number of instantaneous vehicle speeds; and if so, playing the preprocessed target sound in the target vehicle.
In one possible implementation, after the obtaining of the second preset number of instantaneous vehicle speeds of the target vehicle, the method includes:
moving the second preset number of instantaneous vehicle speeds forward by one bit in sequence to obtain the shifted second preset number of instantaneous vehicle speeds, and calculating the average value of the shifted second preset number of instantaneous vehicle speeds; further calculating the average value of the average values of the instantaneous vehicle speeds after the third preset number of shifts; the average of the third preset number of post-shift instantaneous vehicle speeds is delayed compared to the average of the post-shift instantaneous vehicle speeds;
determining whether the target vehicle is in an acceleration or deceleration working condition or not according to the second preset number of instantaneous vehicle speeds; if yes, playing the preprocessed target sound in the target vehicle, wherein the playing comprises the following steps:
calculating the difference value between the average value of the second preset number of the shifted instantaneous vehicle speeds and the average value of the third preset number of the shifted instantaneous vehicle speeds; if the difference is larger than a third preset threshold, determining that the target vehicle is in an acceleration working condition, or if the difference is smaller than a fourth preset threshold, determining that the target vehicle is in a deceleration working condition, and playing the preprocessed target sound in the target vehicle.
The embodiment of the present application further provides a vehicle sound playing device, the device includes:
the acquisition unit is used for acquiring target sound to be played; the target sound is collected noise data in the vehicle when the vehicle of a preset vehicle type runs to different constant working conditions;
the preprocessing unit is used for preprocessing the target sound to obtain a preprocessed target sound so as to eliminate popping generated when the target sound is played;
the first determining unit is used for acquiring the rotating speed of a target vehicle and determining the playing frequency of the target sound according to the rotating speed of the target vehicle and the corresponding relation between the preset rotating speed and the playing frequency;
and the playing unit is used for playing the target sound in the target vehicle according to the playing frequency.
In one possible implementation, the preprocessing unit includes:
a dividing subunit, configured to divide the target sound into a first sound segment and a second sound segment in sequence; the sound time lengths of the first sound segment and the second sound segment are both more than 1 second;
the setting subunit is used for setting the sound of the first 0.5 second of the first sound segment into a fade-in mode to obtain an updated first sound segment; setting the sound of the second sound segment in the last 0.5 second to be a fade-out mode to obtain an updated second sound segment;
and the exchanging subunit is used for exchanging the sequence of the updated first sound segment and the updated second sound segment, and setting overlap for 0.5 second between the updated first sound segment and the updated second sound segment to obtain a preprocessed target sound so as to eliminate the popping sound generated when the target sound is played.
In a possible implementation manner, the acquisition unit is specifically configured to:
when the preset vehicle type vehicle is in an idle working condition, a constant low-speed working condition, a constant medium-speed working condition and a constant high-speed working condition, respectively collecting first target sound, second target sound, third target sound and fourth target sound to be played, and recording a first rotating speed interval, a second rotating speed interval, a third rotating speed interval and a fourth rotating speed interval which respectively correspond to the first rotating speed interval, the second rotating speed interval, the third rotating speed interval and the fourth rotating speed interval;
wherein, a rotating speed overlapping interval exists between the adjacent two of the first rotating speed interval, the second rotating speed interval, the third rotating speed interval and the fourth rotating speed interval;
the device further comprises:
the judging unit is used for judging whether the rotating speed of the target vehicle is in the rotating speed overlapping interval or not after the rotating speed of the target vehicle is obtained;
and the switching unit is used for switching and playing the target sound corresponding to the previous rotating speed interval and the target sound corresponding to the next rotating speed interval of the rotating speed overlapping interval if the rotating speed of the target vehicle is judged to be in the rotating speed overlapping interval.
In a possible implementation manner, the switching unit is specifically configured to:
and the target sound corresponding to the previous rotating speed interval of the rotating speed overlapping interval is played in a fade-out mode, and the target sound corresponding to the next rotating speed interval of the rotating speed overlapping interval is played in a fade-in mode.
In a possible implementation manner, the apparatus further includes:
the first acquisition unit is used for acquiring a first preset number of accelerator pedal strokes of the target vehicle;
the second determining unit is used for determining whether the target vehicle is in an acceleration or deceleration working condition according to the first preset number of accelerator pedal strokes; and if so, playing the preprocessed target sound in the target vehicle.
In a possible implementation manner, the apparatus further includes:
the first shifting unit is used for obtaining the shifted first preset number of accelerator pedal strokes by sequentially moving the first preset number of accelerator pedal strokes of the target vehicle forward by one bit after the first preset number of accelerator pedal strokes of the target vehicle are obtained;
the second determining unit is specifically configured to:
calculating the difference value between the latest accelerator pedal stroke and the most lagging accelerator pedal stroke in the shifted first preset number of accelerator pedal strokes; if the difference is smaller than a first preset threshold, determining that the target vehicle is in a deceleration working condition, or if the difference is larger than a second preset threshold, determining that the target vehicle is in an acceleration working condition, and playing the preprocessed target sound in the target vehicle.
In a possible implementation manner, the apparatus further includes:
the second acquisition unit is used for acquiring a second preset number of instantaneous speeds of the target vehicle;
the third determining unit is used for determining whether the target vehicle is under an acceleration or deceleration working condition according to the second preset number of instantaneous vehicle speeds; and if so, playing the preprocessed target sound in the target vehicle.
In a possible implementation manner, the apparatus further includes:
the second shifting unit is used for obtaining the shifted instantaneous vehicle speeds of the second preset number after shifting the instantaneous vehicle speeds of the second preset number forward by one bit in sequence, and calculating the average value of the shifted instantaneous vehicle speeds of the second preset number; further calculating the average value of the average values of the instantaneous vehicle speeds after the third preset number of shifts; the average of the third preset number of post-shift instantaneous vehicle speeds is delayed compared to the average of the post-shift instantaneous vehicle speeds;
the third determining unit is specifically configured to:
calculating the difference value between the average value of the second preset number of the shifted instantaneous vehicle speeds and the average value of the third preset number of the shifted instantaneous vehicle speeds; if the difference is larger than a third preset threshold, determining that the target vehicle is in an acceleration working condition, or if the difference is smaller than a fourth preset threshold, determining that the target vehicle is in a deceleration working condition, and playing the preprocessed target sound in the target vehicle.
The embodiment of the present application further provides a vehicle sound playing device, including: a processor, a memory, a system bus;
the processor and the memory are connected through the system bus;
the memory is used for storing one or more programs, the one or more programs comprising instructions, which when executed by the processor, cause the processor to perform any one implementation of the vehicle sound playing method described above.
An embodiment of the present application further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are run on a terminal device, the terminal device is enabled to execute any implementation manner of the vehicle sound playing method.
The embodiment of the application also provides a computer program product, and when the computer program product runs on the terminal device, the terminal device is enabled to execute any implementation manner of the vehicle sound playing method.
According to the vehicle sound playing method, the vehicle sound playing device, the storage medium and the equipment, firstly, target sound to be played is collected; the target sound is collected in-vehicle noise data when a vehicle of a preset vehicle type runs to different constant working conditions, and then the target sound is preprocessed to obtain preprocessed target sound so as to eliminate popping sound generated when the target sound is played; then, acquiring the rotating speed of the target vehicle, and determining the playing frequency of the target sound according to the rotating speed of the target vehicle and the corresponding relation between the preset rotating speed and the playing frequency; and then the target sound can be played in the target vehicle according to the playing frequency. It is thus clear that because this application embodiment not only utilizes the preset motorcycle type vehicle of collection to move the target sound under the different invariable operating mode and has realized the sound simulation effect of the vehicle under the operating mode, when the speed of a motor vehicle is in certain invariable operating mode and needs certain section sound sample of repeated play, also can not produce the crackle moreover for user's hearing is more natural, and then has improved user's driving experience.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a vehicle sound playing method according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating a situation that a target sound is played in different rotation speed intervals according to an embodiment of the present application;
fig. 3 is a schematic composition diagram of a vehicle sound playing device according to an embodiment of the present application.
Detailed Description
With the continuous development of automobile technology and manufacturing process, the noise level in the automobile is reduced year by year. However, the quiet driving environment also causes the automobile to lack the power feeling brought by the engine sound, and reduces the driving pleasure of partial consumers. Therefore, a method of simulating and playing the sound effect of the vehicle can be adopted, and the sound is actively produced through the loudspeaker in the vehicle, so that the quality of the sound in the vehicle is improved, and the driving pleasure is improved.
In this regard, the conventional sound simulation playing method for vehicle sound effect generally includes the following two methods:
the first is a formula method, for example, order frequency, amplitude and phase to be enhanced are derived according to a rotation speed signal of an engine, and then an output value is calculated based on a sine wave formula.
The second is particle synthesis algorithm, record the sound of full operating mode in advance, then cut into a plurality of sound fragments with sound and carry out the pretreatment, every sound fragment seems to the sound of certain invariable operating mode, play different sound fragments according to different operating modes, this algorithm can realize the sound simulation of full frequency channel, the design is complicated, the design is not good can produce "crackle" when switching different sound fragments, and because the sound fragment time length of segmentation is very short, when the vehicle operating mode is in certain invariable operating mode, the sound of certain fragment of repeated play can be heard very unnatural, user's driving experience has been reduced.
Therefore, how to realize intelligent analog playing of vehicle sound to make a user feel more natural so as to improve the driving experience of the user is a technical problem to be solved urgently at present.
In order to solve the defects, the application provides a vehicle sound playing method, which comprises the steps of firstly collecting target sound to be played; the target sound is collected in-vehicle noise data when a vehicle of a preset vehicle type runs to different constant working conditions, and then the target sound is preprocessed to obtain preprocessed target sound so as to eliminate popping sound generated when the target sound is played; then, acquiring the rotating speed of the target vehicle, and determining the playing frequency of the target sound according to the rotating speed of the target vehicle and the corresponding relation between the preset rotating speed and the playing frequency; and then the target sound can be played in the target vehicle according to the playing frequency. It is thus clear that because this application embodiment not only utilizes the preset motorcycle type vehicle of collection to move the target sound under the different invariable operating mode and has realized the sound simulation effect of the vehicle under the operating mode, when the speed of a motor vehicle is in certain invariable operating mode and needs certain section sound sample of repeated play, also can not produce the crackle moreover for user's hearing is more natural, and then has improved user's driving experience.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
First embodiment
Referring to fig. 1, a schematic flow chart of a vehicle sound playing method provided in this embodiment is shown, where the method includes the following steps:
s101: collecting target sound to be played; the target sound is collected noise data in the vehicle when the vehicle of the preset vehicle type runs to different constant working conditions.
In this embodiment, any sound subjected to sound effect simulation playing in the vehicle by this embodiment is defined as a target sound to be played, and a vehicle playing the target sound is defined as a target vehicle. In order to realize intelligent simulation playing of target sound in a target vehicle, a user can hear more naturally, and driving experience of the user is improved. Firstly, when a vehicle of a preset vehicle type runs to different constant working conditions, collecting in-vehicle noise data as target sound to be played for executing the subsequent step S102.
For example, the target sounds when the vehicle of the preset vehicle type runs to the idle speed working condition, the constant low speed working condition, the constant medium speed working condition and the constant high speed working condition can be respectively collected, as shown in table 1 below:
TABLE 1
The RecordRate1, the RecordRate2, the RecordRate3 and the RecordRate4 are sampling rates, and the unit sample/s is used for indicating that the target sound can be acquired by adopting different sampling rates under the four working conditions.
It should be noted that, in this embodiment, the number of the constant speed conditions is not limited to the three conditions in table 1, except the idle condition, and the vehicle speed and the rotation speed of different conditions should be obviously different. And the acquisition time is not limited to the recommended time of 3-5 seconds, and specific values can be set according to actual conditions, which is not set in the application.
S102: and preprocessing the target sound to obtain the preprocessed target sound so as to eliminate the popping generated when the target sound is played.
In this embodiment, after the target sound to be played is acquired in step S101, in order to eliminate pop sound that may be generated when the target sound is played, so that the user feels more natural in hearing, the target sound may be further preprocessed to obtain a preprocessed target sound, so as to execute subsequent step S103.
Specifically, an alternative implementation is that the target sound may be first divided into a first sound segment and a second sound segment in sequence; and the sound time lengths of the first sound segment and the second sound segment are both more than 1 second. For example, assuming that the target sound is 3 seconds long, the first sound piece and the second sound piece after interception may be 1.5 seconds, respectively. Then, setting the first 0.5 second sound of the first sound segment as a fade-in mode to obtain an updated first sound segment; and the second sound segment's last 0.5 seconds sound is set to fade-out mode, resulting in an updated second sound segment. Then, the updated first sound segment and the updated second sound segment may be exchanged in order, and overlap is set for 0.5 second between the two to obtain the preprocessed target sound, so as to eliminate pop sound generated when the target sound is played. It can be seen that the preprocessed target sound is less than the original template sound by a time span of 0.5 seconds.
S103: and acquiring the rotating speed of the target vehicle, and determining the playing frequency of the preprocessed target sound according to the rotating speed of the target vehicle and the preset corresponding relation between the rotating speed and the playing frequency.
S104: and playing the preprocessed target sound in the target vehicle according to the playing frequency.
It should be noted that, because the time length of the acquired target sound in the application is far longer than the sound segment segmented by the current particle synthesis algorithm, the reality of repeatedly playing a certain sound segment by the target vehicle under a certain constant working condition can be improved. When the working condition of the target vehicle changes, the playing speed (namely the playing frequency) of the preprocessed target sound can be changed in real time according to the rotating speed signal of the target vehicle.
Specifically, before executing step S103, it is necessary to configure the DAC pin of the control chip in advance in terms of hardware, and connect the DAC pin of the control chip with the signal input pin of the analog power amplifier chip, so that, in terms of software, the preprocessed target sound data can be transmitted to the DAC pin one by one and output to the analog power amplifier chip by using the timer interrupt function. Meanwhile, after the rotating speed of the target vehicle is obtained, the time interval of timer interruption is controlled through real-time change of the rotating speed, and therefore the listening feeling of the variable speed rate is played by the target sound after preprocessing of idling or constant speed. The corresponding relation between the preset rotating speed and the playing frequency of each stage controls the time interval of the timer interruption, namely, the playing frequency of the preprocessed target sound is determined, so that each time the timer interruption function is triggered, a preprocessed target sound data is transmitted to the DAC pin and then transmitted to the analog power amplifier chip through the DAC pin, and therefore a loudspeaker connected in a target at the output end of the analog power amplifier chip can play the preprocessed target sound through sound production. Therefore, according to the real-time change of the rotating speed signal of the target vehicle, the trigger time interval of the function can be interrupted by the timer, and the effect of playing the variable speed rate of the target sound after the preprocessing of idling or constant speed is further realized.
For example, the playing frequency corresponding to the 600 rotation speed is 0.01 second, the playing frequency corresponding to the 700 rotation speed is 0.009 second, the playing frequency corresponding to the 800 rotation speed is 0.001 second, and the like, so that when the rotation speed of the target vehicle is 600 revolutions, the timer interrupt function can be triggered every 0.01 second, that is, the preprocessed target sound is played in the target vehicle every 0.01 second.
Therefore, the higher the rotating speed of the target vehicle is, the shorter the timer interrupt time interval is, so that the faster the DAC output signal is, and the purpose of playing the preprocessed target sound at the variable speed of the loudspeaker at the output end of the analog power amplifier chip is realized.
In addition, in a possible implementation manner of the embodiment of the present application, a specific implementation process of "collecting a target sound to be played" in the step S101 may include: when a preset vehicle type vehicle is in an idle working condition, a constant low-speed working condition, a constant medium-speed working condition and a constant high-speed working condition, respectively collecting first target sound, second target sound, third target sound and fourth target sound to be played, and recording a first rotating speed interval, a second rotating speed interval, a third rotating speed interval and a fourth rotating speed interval which respectively correspond to the first rotating speed interval, the second rotating speed interval, the third rotating speed interval and the fourth rotating speed interval, as shown in the table 1; wherein, a rotating speed overlapping interval exists between the adjacent two of the first rotating speed interval, the second rotating speed interval, the third rotating speed interval and the fourth rotating speed interval. Further, after the rotation speed of the target vehicle is obtained, it is necessary to determine whether the rotation speed of the target vehicle is located in a rotation speed overlapping interval, and if so, it is necessary to switch and play the target sound corresponding to the previous rotation speed interval and the target sound corresponding to the next rotation speed interval of the rotation speed overlapping interval. In addition, in the process of switching the playing, the target sound corresponding to the previous rotating speed interval of the rotating speed overlapping interval needs to be played in a fade-out mode, and the target sound corresponding to the next rotating speed interval of the rotating speed overlapping interval needs to be played in a fade-in mode, so that the playing effect is improved.
In this implementation, the switching of the target sounds after the adjacent processing needs to be smooth and natural. Based on the above statement, the time interval of the timer interrupt is in linear inverse proportion to the current rotating speed information of the target vehicle, i.e. the higher the rotating speed, the shorter the time interval of the timer interrupt, and the faster the DAC output signal, the faster the sound playing rate.
On the basis, as shown in fig. 2, taking as an example that the idle operating condition, the constant low speed operating condition, the constant medium speed operating condition, and the constant high speed operating condition respectively correspond to the preprocessed first target sound, second target sound, third target sound, and fourth target sound, and the engine speed of the target vehicle satisfies: RPM1< RPM2< RPM3< RPM4< RPM6< RPM7< RPM 8. The situation of the playing target sound in the rotation speed interval is as follows:
1) when the engine speed of the target vehicle is between the RPM1 and the RPM2, only the first target sound after being processed corresponding to the idling condition is played.
2) When the engine speed of the target vehicle is between the RPM2 and the RPM3, the first target sound after being processed corresponding to the idling condition and the second target sound after being processed corresponding to the constant low-speed condition are played simultaneously.
3) When the engine speed of the target vehicle is between the RPM3 and the RPM4, only the second target sound after processing corresponding to the constant low speed working condition is played.
4) And when the engine speed of the target vehicle is between the RPM4 and the RPM5, simultaneously playing the second target sound to be processed corresponding to the constant-speed constant low-speed working condition and the third target sound to be processed corresponding to the constant medium-speed working condition.
5) When the engine speed of the target vehicle is between the RPM5 and the RPM6, only the third target sound to be processed corresponding to the constant middle speed condition is played.
6) And when the engine speed of the target vehicle is between the RPM6 and the RPM7, simultaneously playing a third target sound to be processed corresponding to the constant medium-speed working condition and a fourth target sound to be processed corresponding to the constant high-speed working condition.
7) When the engine speed of the target vehicle is between the RPM7 and the RPM8, only the fourth target sound after being processed corresponding to the constant high-speed working condition is played.
When two preprocessed target sounds are played simultaneously, a fade-out algorithm is added to the former preprocessed target sound, and a fade-in algorithm is added to the latter preprocessed target sound. The values of the parameters RPM1, RPM2, RPM3, RPM4, RPM5, RPM6, RPM7 and RPM8 can be set according to actual conditions, which are not limited in the embodiment of the present application, for example, in general, RPM1 should be less than the rotation speed of the engine when the vehicle is idling, and RPM8 should be greater than the maximum rotation speed of the engine of the vehicle, so as to meet the requirement that the target sound can be generated under all operating conditions of the vehicle. For example: assuming that the engine speed range of a certain vehicle type is 700-6000 revolutions, RPM 1-400, RPM 2-1200, RPM 3-1500, RPM 4-2500, RPM 5-3000, RPM 6-3500, RPM 7-5000, RPM 8-7000, and the like may be set.
It should be noted that, because the existing vehicle sound effect sound simulation playing method only has the function of turning on or turning off sound effect sound, more customized functions are lacked, and the driving experience of a user is poor. Therefore, in the embodiment, in order to further improve the driving experience of the driver, the playing of the target sound may be started when the target vehicle is in an acceleration or deceleration condition, so as to avoid the hearing fatigue generated when the driver drives at a constant speed for a long time (such as driving on an expressway). The specific playing process can be referred to the above steps S101-S104, and the present application will now describe in detail how to determine when to start the target sound playing:
in an alternative implementation, a first predetermined number of target vehicles (defined herein as P) may be obtained firstnumThe specific value is not limited, and may be set according to the actual situation, for example, may be 10), and then the accelerator pedal travel (defined as P here) is determined according to the first preset number PnumDetermining whether the target vehicle is in an acceleration or deceleration working condition; and if so, playing the target sound in the target vehicle.
In this implementation, P of the target vehicle is obtainednumAfter the travel of the accelerator pedal, defining the historical data array of the travel of the accelerator pedal as Parray[Pnum-1]Then, by moving it forward by one bit in sequence, the shifted P is obtainednumOf the accelerator pedal, i.e. Parray[0]＝Parray[1]，Parray[1]＝Parray[2]，…，Parray[Pnum-2]＝Parray[Pnum-1]Then P is addedarray[Pnum-1]＝PnewIn which P isarrayThe size of the array is Pnum. Further, a difference between the latest accelerator pedal stroke and the most retarded accelerator pedal stroke of the shifted first preset number of accelerator pedal strokes may be calculated, i.e., P may be calculatedarray[Pnum-1]-Parray[0]If the value is less than the first predetermined threshold (defined herein as P1)DifferenceConcretely, getThe value is not limited, and may be set according to an actual condition, for example, the value may be-20), it is determined that the target vehicle is in the deceleration condition, the preprocessed target sound may be played in the target vehicle, and the sound-effect-sound-off countdown variable is set to the preset time (where the time is defined as TimerCount, the specific value is not limited, and may be set according to an actual condition, for example, the value may be 10 seconds), or, if P isarray[Pnum-1]-Parray[0]Is greater than a second predetermined threshold value (defined herein as P2)DifferenceAnd the specific value is not limited, and can be set according to actual conditions, for example, the value can be 20), determining that the target vehicle is in an acceleration working condition, playing the preprocessed target sound in the target vehicle, setting the sound effect sound closing countdown variable as preset time TimerCount, and controlling the target sound to fade out gradually until the target sound is closed when the preset time is reached.
Alternatively, a second predetermined number of target vehicles (defined herein as V1) may be obtained firstnumThe specific value is not limited, and may be set according to actual conditions, for example, may be 15), and then the instantaneous vehicle speed (defined as V) is determined according to the second preset number V1numDetermining whether the target vehicle is in an acceleration or deceleration working condition; and if so, playing the preprocessed target sound in the target vehicle.
In the present implementation, V1 of the target vehicle is acquirednumAfter the instantaneous vehicle speed, the instantaneous vehicle speed historical data array of the target vehicle is defined as V1array[V1num-1]Then, by shifting the value in the data array forward by one bit in sequence, the shifted V1 is obtainednumI.e. V1array[0]＝V1array[1]，V1array[1]＝V1array[2]，…，V1array[V1num-2]＝V1array[V1num-1]Then, V1 can be definedarray[V1num-1]＝VnewAnd calculating the average value V1aveThe values of (A) are as follows:
wherein V1ave represents a second preset number V1numAverage of the shifted instantaneous vehicle speeds of (a); v1arrayThe dimension of the array is a second preset number V1num。
Further, a third predetermined number (defined herein as V2) may be calculatednumThe specific value is not limited, and may be set according to actual conditions, for example, may be 20), and specifically, the average vehicle speed historical data array of the target vehicle may be defined as V2array[V2num-1]Then, by shifting the values in the data array forward by one bit in sequence, V2 is obtainedarray[0]＝V2array[1]，V2array[1]＝V2array[2]，…，V2array[V1num-2]＝V2array[V1num-1]Then V2array[V2num-1]＝V1aveAnd calculating the average value V2aveThe values of (A) are as follows:
wherein V2ave represents a third preset number V2numAverage of the shifted instantaneous vehicle speeds of (a); v2arrayThe dimension of the array is a second preset number V2num。
Further, the difference between the average value of the second preset number of post-shift instantaneous vehicle speeds and the average value of the third preset number of post-shift instantaneous vehicle speeds may be calculated, i.e., V1 may be calculatedave-V2aveIf the value is greater than a third predetermined threshold (defined herein as V1)DifferenceThe specific value is not limited, and can be set according to actual conditions, for example, the value can be 5), it is determined that the target vehicle is in the acceleration condition, the preprocessed target sound can be played in the target vehicle, and the sound effect sound closing countdown variable is set to be presetTime TimerCount (e.g., 10 seconds, etc.), or if V1ave-V2aveIf the value of (a) is less than a fourth preset threshold (defined as V2Difference here, the specific value is not limited, and may be set according to actual conditions, for example, may be-5), it is determined that the target vehicle is in a deceleration condition, and the preprocessed target sound may be played in the target vehicle, and the sound-effect-sound-off countdown variable is set as a preset time TimerCount, and the target sound is controlled to fade out gradually until being turned off when the preset time is reached.
In summary, in the vehicle sound playing method provided by this embodiment, first, a target sound to be played is collected; the target sound is collected in-vehicle noise data when a vehicle of a preset vehicle type runs to different constant working conditions, and then the target sound is preprocessed to obtain preprocessed target sound so as to eliminate popping sound generated when the target sound is played; then, acquiring the rotating speed of the target vehicle, and determining the playing frequency of the target sound according to the rotating speed of the target vehicle and the corresponding relation between the preset rotating speed and the playing frequency; and then the target sound can be played in the target vehicle according to the playing frequency. It is thus clear that because this application embodiment not only utilizes the preset motorcycle type vehicle of collection to move the target sound under the different invariable operating mode and has realized the sound simulation effect of the vehicle under the operating mode, when the speed of a motor vehicle is in certain invariable operating mode and needs certain section sound sample of repeated play, also can not produce the crackle moreover for user's hearing is more natural, and then has improved user's driving experience.
Second embodiment
In this embodiment, a vehicle sound playing apparatus will be described, and please refer to the above method embodiment for related contents.
Referring to fig. 3, a schematic composition diagram of a vehicle sound playing device provided in this embodiment is shown, where the device 300 includes:
the acquisition unit 301 is used for acquiring target sound to be played; the target sound is collected noise data in the vehicle when the vehicle of a preset vehicle type runs to different constant working conditions;
a preprocessing unit 302, configured to preprocess the target sound to obtain a preprocessed target sound, so as to eliminate pop sound generated when the target sound is played;
the determining unit 303 is configured to obtain a rotation speed of a target vehicle, and determine a playing frequency of the target sound according to the rotation speed of the target vehicle and a preset correspondence between the rotation speed and the playing frequency;
a playing unit 304, configured to play the target sound in the target vehicle according to the playing frequency.
In an implementation manner of this embodiment, the preprocessing unit 302 includes:
a dividing subunit, configured to divide the target sound into a first sound segment and a second sound segment in sequence; the sound time lengths of the first sound segment and the second sound segment are both more than 1 second;
the setting subunit is used for setting the sound of the first 0.5 second of the first sound segment into a fade-in mode to obtain an updated first sound segment; setting the sound of the second sound segment in the last 0.5 second to be a fade-out mode to obtain an updated second sound segment;
and the exchanging subunit is used for exchanging the sequence of the updated first sound segment and the updated second sound segment, and setting overlap for 0.5 second between the updated first sound segment and the updated second sound segment to obtain a preprocessed target sound so as to eliminate the popping sound generated when the target sound is played.
In an implementation manner of this embodiment, the acquisition unit 301 is specifically configured to:
when the preset vehicle type vehicle is in an idle working condition, a constant low-speed working condition, a constant medium-speed working condition and a constant high-speed working condition, respectively collecting first target sound, second target sound, third target sound and fourth target sound to be played, and recording a first rotating speed interval, a second rotating speed interval, a third rotating speed interval and a fourth rotating speed interval which respectively correspond to the first rotating speed interval, the second rotating speed interval, the third rotating speed interval and the fourth rotating speed interval;
wherein, a rotating speed overlapping interval exists between the adjacent two of the first rotating speed interval, the second rotating speed interval, the third rotating speed interval and the fourth rotating speed interval;
the device further comprises:
the judging unit is used for judging whether the rotating speed of the target vehicle is in the rotating speed overlapping interval or not after the rotating speed of the target vehicle is obtained;
and the switching unit is used for switching and playing the target sound corresponding to the previous rotating speed interval and the target sound corresponding to the next rotating speed interval of the rotating speed overlapping interval if the rotating speed of the target vehicle is judged to be in the rotating speed overlapping interval.
In an implementation manner of this embodiment, the switching unit is specifically configured to:
and the target sound corresponding to the previous rotating speed interval of the rotating speed overlapping interval is played in a fade-out mode, and the target sound corresponding to the next rotating speed interval of the rotating speed overlapping interval is played in a fade-in mode.
In an implementation manner of this embodiment, the apparatus further includes:
the first acquisition unit is used for acquiring a first preset number of accelerator pedal strokes of the target vehicle;
the second determining unit is used for determining whether the target vehicle is in an acceleration or deceleration working condition according to the first preset number of accelerator pedal strokes; and if so, playing the preprocessed target sound in the target vehicle.
In an implementation manner of this embodiment, the apparatus further includes:
the first shifting unit is used for obtaining the shifted first preset number of accelerator pedal strokes by sequentially moving the first preset number of accelerator pedal strokes of the target vehicle forward by one bit after the first preset number of accelerator pedal strokes of the target vehicle are obtained;
the second determining unit is specifically configured to:
calculating the difference value between the latest accelerator pedal stroke and the most lagging accelerator pedal stroke in the shifted first preset number of accelerator pedal strokes; if the difference is smaller than a first preset threshold, determining that the target vehicle is in a deceleration working condition, or if the difference is larger than a second preset threshold, determining that the target vehicle is in an acceleration working condition, and playing the preprocessed target sound in the target vehicle.
In an implementation manner of this embodiment, the apparatus further includes:
the second acquisition unit is used for acquiring a second preset number of instantaneous speeds of the target vehicle;
the third determining unit is used for determining whether the target vehicle is under an acceleration or deceleration working condition according to the second preset number of instantaneous vehicle speeds; and if so, playing the preprocessed target sound in the target vehicle.
In an implementation manner of this embodiment, the apparatus further includes:
the second shifting unit is used for obtaining the shifted instantaneous vehicle speeds of the second preset number after shifting the instantaneous vehicle speeds of the second preset number forward by one bit in sequence, and calculating the average value of the shifted instantaneous vehicle speeds of the second preset number; further calculating the average value of the average values of the instantaneous vehicle speeds after the third preset number of shifts; the average of the third preset number of post-shift instantaneous vehicle speeds is delayed compared to the average of the post-shift instantaneous vehicle speeds;
the third determining unit is specifically configured to:
calculating the difference value between the average value of the second preset number of the shifted instantaneous vehicle speeds and the average value of the third preset number of the shifted instantaneous vehicle speeds; if the difference is larger than a third preset threshold, determining that the target vehicle is in an acceleration working condition, or if the difference is smaller than a fourth preset threshold, determining that the target vehicle is in a deceleration working condition, and playing the preprocessed target sound in the target vehicle.
Further, the embodiment of the present application also provides a vehicle sound playing device, including: a processor, a memory, a system bus;
the processor and the memory are connected through the system bus;
the memory is used for storing one or more programs, the one or more programs comprise instructions which, when executed by the processor, cause the processor to execute any one of the implementation methods of the vehicle sound playing method described above.
Further, an embodiment of the present application also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are run on a terminal device, the instructions cause the terminal device to execute any implementation method of the above vehicle sound playing method.
Further, an embodiment of the present application further provides a computer program product, which when running on a terminal device, causes the terminal device to execute any implementation method of the above vehicle sound playing method.
As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that all or part of the steps in the above embodiment methods can be implemented by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network communication device such as a media gateway, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present application.
It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. A vehicle sound playing method, comprising:
collecting target sound to be played; the target sound is collected noise data in the vehicle when the vehicle of a preset vehicle type runs to different constant working conditions;
preprocessing the target sound to obtain a preprocessed target sound so as to eliminate popping generated when the target sound is played;
acquiring the rotating speed of a target vehicle, and determining the playing frequency of the preprocessed target sound according to the rotating speed of the target vehicle and the corresponding relation between the preset rotating speed and the playing frequency;
and playing the preprocessed target sound in the target vehicle according to the playing frequency.
2. The method according to claim 1, wherein the preprocessing the target sound to obtain a preprocessed target sound to eliminate pop sound generated when the target sound is played comprises:
dividing the target sound into a first sound segment and a second sound segment in sequence; the sound time lengths of the first sound segment and the second sound segment are both more than 1 second;
setting the first 0.5 second sound of the first sound segment into a fade-in mode to obtain an updated first sound segment; setting the sound of the second sound segment in the last 0.5 second to be a fade-out mode to obtain an updated second sound segment;
and exchanging the sequence of the updated first sound segment and the updated second sound segment, and overlapping the updated first sound segment and the updated second sound segment for 0.5 second to obtain a preprocessed target sound so as to eliminate the popping sound generated when the target sound is played.
3. The method of claim 1, wherein the collecting the target sound to be played comprises:
when the preset vehicle type vehicle is in an idle working condition, a constant low-speed working condition, a constant medium-speed working condition and a constant high-speed working condition, respectively collecting first target sound, second target sound, third target sound and fourth target sound to be played, and recording a first rotating speed interval, a second rotating speed interval, a third rotating speed interval and a fourth rotating speed interval which respectively correspond to the first rotating speed interval, the second rotating speed interval, the third rotating speed interval and the fourth rotating speed interval;
wherein, a rotating speed overlapping interval exists between the adjacent two of the first rotating speed interval, the second rotating speed interval, the third rotating speed interval and the fourth rotating speed interval;
after the obtaining the rotation speed of the target vehicle, the method further comprises:
judging whether the rotating speed of the target vehicle is in the rotating speed overlapping interval or not;
and if so, switching and playing the target sound corresponding to the previous rotating speed interval and the target sound corresponding to the next rotating speed interval of the rotating speed overlapping interval.
4. The method according to claim 3, wherein the switching to play the target sound corresponding to the previous rotating speed interval and the target sound corresponding to the next rotating speed interval of the rotating speed overlapping interval comprises:
and the target sound corresponding to the previous rotating speed interval of the rotating speed overlapping interval is played in a fade-out mode, and the target sound corresponding to the next rotating speed interval of the rotating speed overlapping interval is played in a fade-in mode.
5. The method of claim 1, further comprising:
acquiring a first preset number of accelerator pedal strokes of the target vehicle;
determining whether the target vehicle is in an acceleration or deceleration working condition or not according to the first preset number of accelerator pedal strokes; and if so, playing the preprocessed target sound in the target vehicle.
6. The method of claim 5, wherein after said obtaining a first preset number of accelerator pedal strokes of the target vehicle, the method comprises:
sequentially moving a first preset number of accelerator pedal strokes of the target vehicle forward by one bit to obtain a first preset number of shifted accelerator pedal strokes;
determining whether the target vehicle is in an acceleration or deceleration working condition according to the first preset number of accelerator pedal strokes; if yes, playing the target sound in the target vehicle, wherein the playing comprises the following steps:
calculating the difference value between the latest accelerator pedal stroke and the most lagging accelerator pedal stroke in the shifted first preset number of accelerator pedal strokes; if the difference is smaller than a first preset threshold, determining that the target vehicle is in a deceleration working condition, or if the difference is larger than a second preset threshold, determining that the target vehicle is in an acceleration working condition, and playing the preprocessed target sound in the target vehicle.
7. The method of claim 1, further comprising:
acquiring a second preset number of instantaneous vehicle speeds of the target vehicle;
determining whether the target vehicle is in an acceleration or deceleration working condition or not according to the second preset number of instantaneous vehicle speeds; and if so, playing the preprocessed target sound in the target vehicle.
8. The method of claim 7, wherein after said obtaining a second preset number of instantaneous vehicle speeds of the target vehicle, the method comprises:
moving the second preset number of instantaneous vehicle speeds forward by one bit in sequence to obtain the shifted second preset number of instantaneous vehicle speeds, and calculating the average value of the shifted second preset number of instantaneous vehicle speeds; further calculating the average value of the average values of the instantaneous vehicle speeds after the third preset number of shifts; the average of the third preset number of post-shift instantaneous vehicle speeds is delayed compared to the average of the post-shift instantaneous vehicle speeds;
determining whether the target vehicle is in an acceleration or deceleration working condition or not according to the second preset number of instantaneous vehicle speeds; if yes, playing the preprocessed target sound in the target vehicle, wherein the playing comprises the following steps:
calculating the difference value between the average value of the second preset number of the shifted instantaneous vehicle speeds and the average value of the third preset number of the shifted instantaneous vehicle speeds; if the difference is larger than a third preset threshold, determining that the target vehicle is in an acceleration working condition, or if the difference is smaller than a fourth preset threshold, determining that the target vehicle is in a deceleration working condition, and playing the preprocessed target sound in the target vehicle.
9. A vehicle sound playing device, comprising:
the acquisition unit is used for acquiring target sound to be played; the target sound is collected noise data in the vehicle when the vehicle of a preset vehicle type runs to different constant working conditions;
the preprocessing unit is used for preprocessing the target sound to obtain a preprocessed target sound so as to eliminate popping generated when the target sound is played;
the determining unit is used for acquiring the rotating speed of a target vehicle and determining the playing frequency of the target sound according to the rotating speed of the target vehicle and the corresponding relation between the preset rotating speed and the playing frequency;
and the playing unit is used for playing the target sound in the target vehicle according to the playing frequency.
10. A vehicle sound playing apparatus, characterized by comprising: a processor, a memory, a system bus;
the processor and the memory are connected through the system bus;
the memory is to store one or more programs, the one or more programs comprising instructions, which when executed by the processor, cause the processor to perform the method of any of claims 1-8.
11. A computer-readable storage medium having stored therein instructions that, when executed on a terminal device, cause the terminal device to perform the method of any one of claims 1-8.
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| CN202111679086.1A CN114339546A (en) | 2021-12-31 | 2021-12-31 | Vehicle sound playing method and device, storage medium and equipment |
| PCT/CN2023/070018 WO2023126011A1 (en) | 2021-12-31 | 2023-01-03 | Vehicle sound playback method and apparatus, storage medium and device |
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| WO2023126011A1 (en) * | 2021-12-31 | 2023-07-06 | 科大讯飞(苏州)科技有限公司 | Vehicle sound playback method and apparatus, storage medium and device |
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