Earphone low-frequency vibration regulation method and device, computer device, and storage medium

Abstract

The application provides an earphone low-frequency vibration regulation method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a low-frequency vibration acceleration ratio of an earphone; performing speed-pressure conversion processing on the low-frequency vibration acceleration ratio and a preset acceleration ratio to obtain an ear sleeve pre-compression amount; and sending a low-vibration parameter adjustment signal to an earphone low-vibration system according to the ear sleeve pre-compression amount to adjust the low-frequency operation parameters of a low-frequency vibration signal processor of the earphone. The low-frequency vibration acceleration ratio is collected to determine the vibration trend of the earphone in a low-frequency state. Then, the low-frequency vibration acceleration ratio is compared with the preset acceleration ratio to determine the compression degree corresponding to the vibration of the earphone in the current low-frequency environment. Finally, the low-frequency operation parameters of the low-frequency vibration signal processor of the earphone are adjusted according to the ear sleeve pre-compression amount to improve the processing capacity of the low-frequency vibration signal processor for low-frequency signals, thereby improving the vibration transmission accuracy of the earphone in a low-frequency vibration environment.

Description

Technical Field

[0001] This invention relates to the field of headphone technology, and in particular to a method, apparatus, computer device, and storage medium for regulating low-frequency vibration in headphones. Background Technology

[0002] Headphones are common consumer electronics products used for listening to music, playing games, and communicating remotely. The human body primarily perceives audio information through sound transmitted through the air by the speakers inside the headphones. However, when low-frequency (below 500Hz) vibrations occur on the skin, the body can also enhance this low-frequency sensation through tactile receptors such as tactile corpora and Pacinian corpora under the skin. Current common technology typically involves installing a vibrator inside the headphones, which is then transmitted to the body through the earcups that directly contact the ear.

[0003] However, the wearing effect of vibrators varies greatly among different people. The main reason is that each person's head shape is different and the length of the headband of the headphones is not the same, which leads to different degrees of compression of the earcups on the ears. Since the earcups are generally made of non-linear stiffness materials, their stiffness is different under different pre-compression degrees. Different wearing conditions result in large differences in the overall vibration transmission effect, making it impossible to accurately transmit the vibration to the human body. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method, device, computer equipment, and storage medium for controlling low-frequency vibrations in headphones that effectively improves the accuracy of low-frequency vibration transmission.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A method for controlling low-frequency vibration in headphones, the method comprising:

[0007] Obtain the low-frequency vibration acceleration ratio of the headphones;

[0008] The low-frequency vibration acceleration ratio is converted to a preset acceleration ratio to obtain the ear cover pre-compression amount.

[0009] Based on the pre-compression amount of the earcups, a low-frequency adjustment signal is sent to the headphone low-frequency vibration system to adjust the low-frequency operating parameters of the headphone's low-frequency vibration signal processor.

[0010] In one embodiment, obtaining the low-frequency vibration acceleration ratio of the headphones includes: obtaining a first low-frequency vibration acceleration of the earcup of the headphones; obtaining a second low-frequency vibration acceleration of the low-frequency vibrator of the headphones; and obtaining the low-frequency vibration acceleration ratio based on the first low-frequency vibration acceleration and the second low-frequency vibration acceleration.

[0011] In one embodiment, the step of performing a speed-pressure conversion process on the low-frequency vibration acceleration ratio and a preset acceleration ratio includes: calculating the deviation between the low-frequency vibration acceleration ratio at each low-frequency frequency and multiple preset acceleration ratios to obtain multiple low-frequency acceleration ratio difference components.

[0012] In one embodiment, the step of calculating the deviation between the low-frequency vibration acceleration ratio at each low-frequency frequency and multiple preset acceleration ratios to obtain multiple low-frequency acceleration ratio difference components further includes: sorting the multiple low-frequency acceleration ratio difference components to obtain the minimum acceleration ratio difference component; and obtaining the earpiece pre-compression amount corresponding to the minimum acceleration ratio difference component.

[0013] In one embodiment, the step of calculating the deviation between the low-frequency vibration acceleration ratio at each low-frequency frequency and multiple preset acceleration ratios includes: calculating the sum of squared deviations in the frequency domain between the low-frequency vibration acceleration ratio and the multiple preset acceleration ratios.

[0014] In one embodiment, the step of sending a low-frequency adjustment signal to the headphone low-frequency vibration system according to the ear cup pre-compression amount to adjust the low-frequency operating parameters of the headphone's low-frequency vibration signal processor includes: detecting whether the ear cup pre-compression amount matches a preset compression amount; and when the ear cup pre-compression amount matches the preset compression amount, sending a low-frequency adjustment signal to the headphone low-frequency vibration system.

[0015] A low-frequency vibration control device for headphones includes: a low-frequency acceleration acquisition unit and a low-frequency static pressure control main board; the low-frequency acceleration acquisition unit is used to acquire the low-frequency vibration acceleration ratio of the headphones; the input terminal of the low-frequency static pressure control main board is connected to the output terminal of the low-frequency acceleration acquisition unit, and the low-frequency static pressure control main board is used to perform speed-pressure conversion processing on the low-frequency vibration acceleration ratio and a preset acceleration ratio to obtain the ear cup pre-compression amount; according to the ear cup pre-compression amount, a low-frequency vibration parameter adjustment signal is sent to the low-frequency vibration system of the headphones to adjust the low-frequency operating parameters of the low-frequency vibration signal processor of the headphones.

[0016] In one embodiment, the low-frequency acceleration acquisition device includes a plurality of second accelerometers or a plurality of first accelerometers. The plurality of second accelerometers are used to be disposed on each low-frequency vibrator with a different operating frequency band or a different vibration direction, and the plurality of first accelerometers are used to be disposed on each different ear cup section of the earphone.

[0017] A computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program performing the following steps:

[0018] Obtain the low-frequency vibration acceleration ratio of the headphones;

[0019] The low-frequency vibration acceleration ratio is converted to a preset acceleration ratio to obtain the ear cover pre-compression amount.

[0020] Based on the pre-compression amount of the earcups, a low-frequency adjustment signal is sent to the headphone low-frequency vibration system to adjust the low-frequency operating parameters of the headphone's low-frequency vibration signal processor.

[0021] A computer-readable storage medium having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0022] Obtain the low-frequency vibration acceleration ratio of the headphones;

[0023] The low-frequency vibration acceleration ratio is converted to a preset acceleration ratio to obtain the ear cover pre-compression amount.

[0024] Based on the pre-compression amount of the earcups, a low-frequency adjustment signal is sent to the headphone low-frequency vibration system to adjust the low-frequency operating parameters of the headphone's low-frequency vibration signal processor.

[0025] Compared with the prior art, the present invention has at least the following advantages:

[0026] By collecting the low-frequency vibration acceleration ratio, the vibration trend of the headphones in low-frequency conditions can be determined. Then, the low-frequency vibration acceleration ratio is compared with the preset acceleration ratio to determine the degree of vibration acceleration difference corresponding to the current low-frequency vibration of the headphones. This helps to determine the degree of compression of the headphones in the current low-frequency environment. Finally, based on the aforementioned ear cup pre-compression amount, the low-frequency operating parameters of the headphone's low-frequency vibration signal processor are adjusted to improve the low-frequency signal processor's processing capability for low-frequency signals. This improves the accuracy of vibration transmission in low-frequency vibration environments and effectively enhances the low-frequency vibration transmission effect of the headphones. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a flowchart of a method for controlling low-frequency vibration of headphones in one embodiment;

[0029] Figure 2 This is a schematic diagram of the headphones in one embodiment;

[0030] Figure 3 for Figure 2 A schematic diagram showing the different compression levels of the earcups on the headphones;

[0031] Figure 4 This is a schematic diagram of the distribution of earcups accelerometers, including a single low-frequency vibrator, in one embodiment of the headphones.

[0032] Figure 5 A schematic diagram of the standard acceleration ratio curves for different earpiece pre-compression amounts under experimental conditions;

[0033] Figure 6 This is a schematic diagram showing the headphones in another embodiment including a single low-frequency vibrator and the distribution of accelerometers on the earcups;

[0034] Figure 7 This is a schematic diagram showing the distribution of accelerometers on the earcups of the headphones described in another embodiment, which include two different earcup sections;

[0035] Figure 8 This is a schematic diagram showing the distribution of two identical low-frequency vibrators and accelerometers on the earcups in another embodiment of the headphones;

[0036] Figure 9 This is a schematic diagram showing the distribution of two low-frequency vibrators operating at different frequency bands and accelerometers on the earcups in another embodiment of the headphones.

[0037] Figure 10 This is a schematic diagram showing the distribution of two sets of low-frequency vibrators with different vibration directions and accelerometers on the earcups in another embodiment of the headphones.

[0038] Figure 11 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0039] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0040] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] This invention relates to a method for controlling low-frequency vibration in headphones. In one embodiment, the method includes acquiring the low-frequency vibration acceleration ratio of the headphones; performing a speed-compression conversion process on the low-frequency vibration acceleration ratio and a preset acceleration ratio to obtain a pre-compression amount on the earcups; and sending a low-frequency vibration parameter adjustment signal to the headphone's low-frequency vibration signal processor according to the pre-compression amount on the earcups to adjust the low-frequency operating parameters of the headphone's low-frequency vibration signal processor. By acquiring the low-frequency vibration acceleration ratio, the vibration trend of the headphones in a low-frequency state can be determined. Then, the low-frequency vibration acceleration ratio is compared with the preset acceleration ratio to determine the degree of vibration acceleration difference corresponding to the current low-frequency vibration of the headphones, thereby facilitating the determination of the compression degree corresponding to the vibration of the headphones in the current low-frequency environment. Finally, the low-frequency operating parameters of the headphone's low-frequency vibration signal processor are adjusted according to the aforementioned pre-compression amount on the earcups to improve the processing capability of the low-frequency vibration signal processor for low-frequency signals, thereby improving the accuracy of vibration transmission in the low-frequency vibration environment and effectively improving the low-frequency vibration transmission effect of the headphones.

[0043] Please see Figure 1 This is a flowchart of a headphone low-frequency vibration control method according to an embodiment of the present invention. The headphone low-frequency vibration control method includes some or all of the following steps.

[0044] S100: Obtain the low-frequency vibration acceleration ratio of the headphones.

[0045] In this embodiment, the low-frequency vibration acceleration ratio is the ratio of the motion acceleration of the headphones under low-frequency vibration conditions. Specifically, it corresponds to the ratio of vibration accelerations during the low-frequency motion of the headphones, and is a ratio between multiple accelerations of the headphones' low-frequency vibrations. By collecting the low-frequency vibration acceleration ratio of the headphones, the change in the headphones' motion speed under low-frequency vibration conditions is observed, thus revealing the trend of the vibration acceleration ratio under low-frequency vibration conditions. This facilitates the determination of the ratio of changes in various vibration velocities of the headphones in a low-frequency vibration environment, thereby facilitating the determination of the headphones' response to low-frequency vibrations.

[0046] S200: The low-frequency vibration acceleration ratio and the preset acceleration ratio are subjected to speed compression conversion processing to obtain the ear cover pre-compression amount.

[0047] In this embodiment, the low-frequency vibration acceleration ratio is the ratio of the motion acceleration of the headphones under low-frequency vibration conditions. Specifically, it corresponds to the ratio of vibration acceleration during low-frequency movement of the headphones, and is a ratio between multiple accelerations of the headphones under low-frequency vibration. By collecting the low-frequency vibration acceleration ratio of the headphones, the change in the motion speed of the headphones under low-frequency vibration conditions is observed, thereby revealing the trend of the vibration acceleration ratio under low-frequency vibration conditions. This facilitates determining the ratio of changes in various vibration velocities of the headphones in a low-frequency vibration environment, and thus helps determine the headphones' response to low-frequency vibration. The preset acceleration ratio is the standard ratio of the motion acceleration of the headphones under low-frequency vibration conditions. Specifically, it corresponds to the standard vibration acceleration ratio during low-frequency movement of the headphones, and is a specified ratio between multiple accelerations of the headphones under low-frequency vibration. By performing a speed-compression conversion process on the low-frequency vibration acceleration ratio and the preset acceleration ratio, the difference between the low-frequency vibration acceleration ratio and the preset acceleration ratio is compared. This facilitates the determination of the degree of difference between the current low-frequency vibration acceleration ratio of the headphones and the standard low-frequency vibration acceleration ratio. Consequently, the difference in the acceleration ratio is converted into the corresponding ear tip pre-compression amount, so that the movement of the headphones is converted into the corresponding compression state, thereby determining the compression state of the headphones when worn.

[0048] S300: Send a low-frequency adjustment signal to the headphone low-frequency vibration system according to the ear cup pre-compression amount to adjust the low-frequency operating parameters of the headphone's low-frequency vibration signal processor.

[0049] In this embodiment, the pre-compression amount of the earcups is obtained based on the low-frequency vibration acceleration ratio and the preset acceleration ratio. The low-frequency vibration acceleration ratio is the ratio of the motion acceleration of the headphones under low-frequency vibration conditions, that is, the ratio of the vibration acceleration of the headphones during low-frequency movement, and corresponds to the ratio between multiple accelerations of the headphones' low-frequency vibration. By collecting the low-frequency vibration acceleration ratio of the headphones, the change in the motion speed of the headphones under low-frequency vibration conditions is obtained, thereby revealing the trend of the change in the vibration acceleration ratio of the headphones under low-frequency vibration conditions. This facilitates the determination of the change ratio of each vibration speed of the headphones in a low-frequency vibration environment, and thus facilitates the determination of the headphones' response to low-frequency vibration. The preset acceleration ratio is the standard ratio of the motion acceleration of the headphones under low-frequency vibration conditions, that is, the standard ratio of vibration acceleration of the headphones during low-frequency movement, and corresponds to the specified ratio between multiple accelerations of the headphones' low-frequency vibration. By performing a rapid-compression conversion process on the low-frequency vibration acceleration ratio and the preset acceleration ratio, the difference between the low-frequency vibration acceleration ratio and the preset acceleration ratio is compared. This facilitates the determination of the degree of difference between the current low-frequency vibration acceleration ratio of the headphones and the standard low-frequency vibration acceleration ratio. This difference is then converted into a corresponding ear tip pre-compression amount, thus converting the headphone's movement into a corresponding compression state, thereby determining the compression state of the headphones when worn. After determining the compression state of the headphones, a corresponding adjustment signal is selected based on the ear tip pre-compression amount to adjust the current operating state of the low-frequency vibration signal processor. This allows the low-frequency vibration signal processor to be adjusted to its optimal low-frequency operating state, facilitating more accurate conversion of low-frequency signals and improving the vibration transmission accuracy of the headphones in low-frequency vibration environments, effectively enhancing the low-frequency vibration transmission effect of the headphones.

[0050] In the above embodiments, by collecting the low-frequency vibration acceleration ratio, the vibration trend of the headphones in the low-frequency state can be determined. Then, the low-frequency vibration acceleration ratio is compared with the preset acceleration ratio to determine the degree of vibration acceleration difference corresponding to the current low-frequency vibration of the headphones. This facilitates the determination of the compression degree corresponding to the vibration of the headphones in the current low-frequency environment. Finally, the low-frequency operating parameters of the headphone's low-frequency vibration signal processor are adjusted according to the pre-compression amount of the earcups to improve the processing capability of the low-frequency vibration signal processor for low-frequency signals. This improves the accuracy of vibration transmission of the headphones in the low-frequency vibration environment and effectively enhances the low-frequency vibration transmission effect of the headphones.

[0051] In one embodiment, obtaining the low-frequency vibration acceleration ratio of the headphones includes: obtaining a first low-frequency vibration acceleration of the earpiece; obtaining a second low-frequency vibration acceleration of the low-frequency vibrator of the headphones; and obtaining the low-frequency vibration acceleration ratio based on the first low-frequency vibration acceleration and the second low-frequency vibration acceleration. In this embodiment, the first low-frequency vibration acceleration is the vibration acceleration on the earpiece of the headphones, that is, the first low-frequency vibration acceleration is the low-frequency vibration acceleration of the earpiece of the headphones, which is also the vibration acceleration of the earpiece of the headphones under a low-frequency signal. The second low-frequency vibration acceleration is the vibration acceleration on the low-frequency vibrator of the headphones, that is, the second low-frequency vibration acceleration is the low-frequency vibration acceleration of the low-frequency vibrator of the headphones, which is also the vibration acceleration of the low-frequency vibrator of the headphones under a low-frequency signal. Specifically, the first low-frequency vibration acceleration is collected by a first accelerometer installed on the earpiece, and the second low-frequency vibration acceleration is collected by a second accelerometer installed on the low-frequency vibrator, as detailed in the appendix. Figure 2 and 3 Accelerometer 1 is mounted on the contact surface between the ear cup and the ear shell, and accelerometer 2 is mounted on the low-frequency vibrator. By processing the first low-frequency vibration acceleration and the second low-frequency vibration acceleration, i.e., calculating the ratio between the first low-frequency vibration acceleration and the second low-frequency vibration acceleration, the low-frequency vibration acceleration ratio is obtained. This low-frequency vibration acceleration ratio is the ratio of the accelerations collected by the first accelerometer and the second accelerometer. In another embodiment, the direction of the first low-frequency vibration acceleration of the first accelerometer is the same as the direction of the second low-frequency vibration acceleration of the second accelerometer, as detailed in the appendix. Figure 4 Accelerometer 1 is installed on the contact surface between the ear cup and the ear shell, and accelerometer 2 is installed on the low-frequency vibrator. The vibration direction of the low-frequency vibrator is vertical, ensuring that the ratio of the first low-frequency vibration acceleration to the second low-frequency vibration acceleration is compared in the same direction, which facilitates the same-direction comparison of the low-frequency vibration of the headphones.

[0052] In one embodiment, the step of performing a speed-voltage conversion process on the low-frequency vibration acceleration ratio and a preset acceleration ratio includes: calculating the deviation between the low-frequency vibration acceleration ratio at each low-frequency frequency and multiple preset acceleration ratios to obtain multiple low-frequency acceleration ratio difference components. In this embodiment, the low-frequency vibration acceleration ratio is obtained based on the first low-frequency vibration acceleration and the second low-frequency vibration acceleration. The first low-frequency vibration acceleration is the vibration acceleration on the earcup of the earphone, that is, the first low-frequency vibration acceleration is the low-frequency vibration acceleration of the earcup of the earphone, which is also the vibration acceleration of the earcup of the earphone under a low-frequency signal. The second low-frequency vibration acceleration is the vibration acceleration on the low-frequency vibrator of the earphone, that is, the second low-frequency vibration acceleration is the low-frequency vibration acceleration of the low-frequency vibrator of the earphone, which is also the vibration acceleration of the low-frequency vibrator of the earphone under a low-frequency signal. Specifically, the first low-frequency vibration acceleration is collected by a first accelerometer installed on the earcup, and the second low-frequency vibration acceleration is collected by a second accelerometer installed on the low-frequency vibrator. By processing the first and second low-frequency vibration accelerations, i.e., calculating the ratio between the first and second low-frequency vibration accelerations, the low-frequency vibration acceleration ratio is obtained. This low-frequency vibration acceleration ratio is the ratio of the accelerations collected by the first and second accelerometers. Furthermore, the ratio of the first and second low-frequency vibration accelerations is based on the same vibration frequency; that is, at multiple low-frequency frequencies, there are also multiple ratios between the first and second low-frequency vibration accelerations. Thus, at multiple different low-frequency frequencies, multiple ratios form an acceleration ratio curve for different frequencies. Simultaneously, due to the nonlinear stiffness characteristics of the earcups, under different earcup pre-compression amounts, multiple proportional curves corresponding one-to-one with the preset acceleration ratio can be obtained. Please refer to the appendix. Figure 5 The deviation between the ratio curve of the low-frequency vibration acceleration ratio and the ratio curves of multiple preset acceleration ratios is used to obtain the difference in acceleration ratios at multiple low-frequency frequencies, thereby determining the vibration status of the headphones within the low-frequency range. The comparison of the deviation between the low-frequency vibration acceleration ratio and the preset acceleration ratios involves subtracting the acceleration ratio at each frequency point corresponding to the low-frequency vibration acceleration ratio from the acceleration ratio at each frequency point corresponding to each preset acceleration ratio. The sum of squared deviations obtained is the low-frequency acceleration ratio difference component. This generates multiple corresponding low-frequency acceleration ratio difference components relative to the multiple preset acceleration ratios, facilitating a differential comparison between the current low-frequency vibration of the headphones and the low-frequency vibrations under various earcup pre-compression amounts caused by wearing. This allows for comparison between the current wearing condition of the headphones and the standard wearing condition to determine the closest wearing state.

[0053] Further, the step of calculating the deviation between the low-frequency vibration acceleration ratio and the preset acceleration ratio at each low-frequency frequency to obtain multiple low-frequency acceleration ratio difference components includes: sorting the multiple low-frequency acceleration ratio difference components to obtain the minimum acceleration ratio difference component; and obtaining the ear cup pre-compression amount corresponding to the minimum acceleration ratio difference component. In this embodiment, the low-frequency acceleration ratio difference component represents the degree of difference between the low-frequency vibration acceleration ratio of the earphone and the vibration acceleration ratio under different wearing states. The low-frequency acceleration ratio difference components are sorted by size so that the multiple low-frequency acceleration ratio difference components are arranged according to their numerical values. By determining the ear cup pre-compression amount corresponding to the minimum acceleration ratio difference component, it is convenient to determine the acceleration ratio corresponding to the current low-frequency vibration acceleration ratio of the earphone, thereby facilitating the determination of the current wearing state of the earphone and, consequently, the current compression state of the earphone ear cup. In this way, by determining the ear cup pre-compression amount corresponding to the ear cup through the minimum acceleration ratio difference component, the degree of compression of the ear cup during wearing is determined, thereby enabling the determination of the optimal operating parameters of the low-frequency vibration signal processor under the same compression amount.

[0054] In one embodiment, the step of calculating the deviation between the low-frequency vibration acceleration ratio at each low-frequency frequency and multiple preset acceleration ratios includes: calculating the sum of squares of the frequency domain deviations between the low-frequency vibration acceleration ratio and the multiple preset acceleration ratios. In this embodiment, there are multiple preset acceleration ratios, i.e., multiple standard low-frequency vibration acceleration ratio curves are formed within the low-frequency frequency range. The low-frequency vibration acceleration ratio at the low-frequency frequency is converted into a frequency domain comparison, i.e., the low-frequency vibration acceleration ratio and the multiple preset acceleration ratios are all converted into frequency domain comparisons, so as to obtain the deviation between the low-frequency vibration acceleration ratio and the multiple preset acceleration ratios, i.e., the sum of squares of the frequency domain deviations between the low-frequency vibration acceleration ratio and the preset acceleration ratios, thereby improving the deviation comparison rate of the low-frequency vibration acceleration ratio of the headphones.

[0055] In one embodiment, the step of sending a low-frequency adjustment signal to the headphone low-frequency vibration signal processor based on the earbud pre-compression amount to adjust the low-frequency operating parameters of the headphone's low-frequency vibration signal processor includes: detecting whether the earbud pre-compression amount matches a preset compression amount; and when the earbud pre-compression amount matches the preset compression amount, sending a low-frequency adaptation signal to the headphone low-frequency vibration system. In this embodiment, the earbud pre-compression amount is obtained based on the low-frequency vibration acceleration ratio and the preset acceleration ratio. The low-frequency vibration acceleration ratio is the ratio of the headphone's motion acceleration in a low-frequency vibration state, that is, the low-frequency vibration acceleration ratio is the ratio of the vibration acceleration of the headphone during low-frequency motion, and corresponds to the ratio between multiple accelerations of the headphone's low-frequency vibration. By collecting the low-frequency vibration acceleration ratio of the headphones, the change in the headphones' motion speed under low-frequency vibration conditions is obtained, thus revealing the trend of the vibration acceleration ratio of the headphones under low-frequency vibration conditions. This facilitates the determination of the ratio of various vibration velocities of the headphones in a low-frequency vibration environment, thereby facilitating the determination of the headphones' response to low-frequency vibrations. The preset acceleration ratio is the standard ratio of the headphones' motion acceleration under low-frequency vibration conditions; that is, the preset acceleration ratio corresponds to a specified ratio between multiple accelerations of the headphones' low-frequency vibrations. The speed-compression conversion processing of the low-frequency vibration acceleration ratio and the preset acceleration ratio compares the difference between the two, facilitating the determination of the degree of difference between the current low-frequency vibration acceleration ratio of the headphones and the standard low-frequency vibration acceleration ratio. This facilitates the conversion of the difference in acceleration ratio into a corresponding ear tip pre-compression amount, thus converting the headphones' motion into a corresponding compression state, thereby determining the compression state of the headphones during wear. The preset compression amount is the standard pre-compression amount of the earphone's ear tips, that is, the standard compression amount of the earphone's ear tips under low-frequency vibration. The ear tip pre-compression amount matches the preset compression amount, indicating that the compression amount of the earphone's ear tips corresponds to one of the standard static compression amounts, that is, it indicates that the current low-frequency vibration of the earphone's ear tips corresponds to a standard low-frequency vibration state. At this time, the preset compression amount has an adjustable parameter to adjust the low-frequency operating state of the low-frequency vibration signal processor to adjust it to the standard low-frequency operating state corresponding to the ear tip pre-compression amount, so as to improve the low-frequency vibration signal processor's ability to process low-frequency signals, thereby improving the accuracy of the earphone's vibration transmission of low-frequency signals.

[0056] Furthermore, the low-frequency adaptation signal includes a low-pass filter adaptation signal, a band-stop filter adaptation signal, and a dynamic compression adaptation signal. The low-pass filter adaptation signal is used to adjust the cutoff frequency and quality factor of the low-pass filter of the headphones. The band-stop filter adaptation signal is used to adjust the band-stop frequency range and quality factor of the band-stop filter of the headphones. The dynamic compression adaptation signal is used to adjust the segment threshold and segment slope of the segmented dynamic compression of the dynamic compressor of the headphones.

[0057] In the actual low-frequency vibration detection of the headphones, there are multiple accelerometers. For example, multiple first accelerometers are evenly distributed on the earcups, see Appendix. Figure 6 Accelerometers 1 to 4 are respectively disposed on the contact surfaces between the ear cup and the ear shell, and accelerometer 5 is disposed on the low-frequency vibrator, the vibration direction of the low-frequency vibrator being vertical, to obtain the low-frequency vibration acceleration at multiple positions of the ear cup, thereby improving the accuracy of obtaining the low-frequency vibration acceleration ratio, and thus improving the precision of adjusting the low-frequency operating parameters of the low-frequency vibration signal processor. In another embodiment, when the ear cup is formed by assembling half-ear cups of different materials, see Appendix Figure 7 Accelerometer 1 is installed on the contact surface between the upper earcup and the ear shell, accelerometer 2 is installed on the contact surface between the lower earcup and the ear shell, accelerometer 3 is installed on the low-frequency vibrator 1 in the upper half, and accelerometer 4 is installed on the low-frequency vibrator 2 in the lower half. The vibration direction of low-frequency vibrator 1 is vertical, and the vibration direction of low-frequency vibrator 2 is perpendicular to the plane of the paper. Each half of the earcup is equipped with an accelerometer to detect low-frequency vibration of the two half of the earcup. Specifically, one accelerometer samples the vibration acceleration in the vertical direction of the earphone, and the other accelerometer samples the vibration acceleration in the direction perpendicular to the plane of the paper, so as to optimize the low-frequency vibration transmission of the earphone in the direction of action. In another embodiment, the accelerometer can also sample the low-frequency vibration acceleration in the front-back direction of the earphone.

[0058] For example, there may be multiple low-frequency vibrators disposed within the earphone shell. The second accelerometer may be mounted on at least one of the low-frequency vibrators. By collecting acceleration data from low-frequency vibrators at different locations, the accuracy of obtaining the acceleration ratio of the low-frequency vibration can be improved. The multiple low-frequency vibrators can be used for sampling the same low-frequency vibration. See Appendix. Figure 8 Accelerometer 1 is mounted on the contact surface between the ear cup and the ear shell, and accelerometer 2 is mounted on the low-frequency vibrator 1. The low-frequency vibrator 2 is positioned away from the low-frequency vibrator 1, and the vibration direction of both low-frequency vibrators 1 and 2 is vertical. It can also be used for low-frequency vibration sampling across multiple different low-frequency ranges; see appendix. Figure 9Accelerometer 1 is mounted on the contact surface between the ear cup and the ear shell. Accelerometer 2 is mounted on low-frequency vibrator 1, which is positioned away from low-frequency vibrator 1. Accelerometer 3 is mounted on low-frequency vibrator 2. The vibration directions of both low-frequency vibrators 1 and 2 are vertical, and their low-frequency operating frequency bands are different. Each low-frequency vibrator is equipped with one accelerometer to facilitate accurate sampling of the low-frequency vibration acceleration ratio of different low-frequency signals using low-frequency vibrators with different sensitivities. In another embodiment, the acceleration directions sampled by some of the multiple low-frequency vibrators are perpendicular to the acceleration directions sampled by others. (See Appendix) Figure 10 Accelerometer 1 is mounted on the contact surface between the earcup and the ear shell, accelerometer 2 is mounted on low-frequency vibrator 1, and accelerometer 3 is mounted on low-frequency vibrator 3. The vibration direction of low-frequency vibrators 1 and 2 is vertical, while the vibration direction of low-frequency vibrators 3 and 4 is forward and backward. Specifically, the accelerometers on some low-frequency vibrators collect acceleration in the vertical direction of the earphone, while the accelerometers on others collect acceleration in the forward and backward direction. The acceleration collected by the accelerometers on the earcup has components in both directions, facilitating the adjustment of low-frequency vibrations in both directions of the earphone. This further improves the low-frequency vibration signal processor's ability to process low-frequency signals and enhances the accuracy of low-frequency vibration transmission. In another embodiment, the accelerometers on the low-frequency vibrators can also collect the low-frequency vibration acceleration of the earphone in the direction perpendicular to the plane of the paper.

[0059] Furthermore, obtaining the low-frequency vibration acceleration ratio of the headphones further includes the following steps:

[0060] Obtain the auxiliary low-vibration acceleration of the earcups of the headphones;

[0061] The coordination low-frequency vibration acceleration ratio is obtained based on the first low-vibration acceleration and the auxiliary low-vibration acceleration.

[0062] Before performing a speed-compression conversion process between the low-frequency vibration acceleration ratio and a preset acceleration ratio to obtain the earpiece pre-compression amount, the following steps are also included:

[0063] Detect whether the coordination low-frequency vibration acceleration ratio matches the low-frequency vibration acceleration ratio;

[0064] When the coordination low-frequency vibration acceleration ratio does not match the low-frequency vibration acceleration ratio, an alarm signal for improper wearing is sent to the headphone low-vibration system.

[0065] In this embodiment, the auxiliary low-frequency vibration acceleration is another low-frequency vibration acceleration on the earcup, that is, the auxiliary low-frequency vibration acceleration is the vibration acceleration collected by another accelerometer on the earcup. In other words, the auxiliary low-frequency vibration acceleration and the first low-frequency vibration acceleration correspond to accelerometers at two different locations on the earcup. By comparing the first low-frequency vibration acceleration and the auxiliary low-frequency vibration acceleration, the ratio between the first low-frequency vibration acceleration and the auxiliary low-frequency vibration acceleration is obtained, i.e., the coordinated low-frequency vibration acceleration ratio, which facilitates the determination of the low-frequency vibration conditions at other locations on the earcup. Both the coordinated low-frequency vibration acceleration ratio and the low-frequency vibration acceleration ratio are ratios relative to the acceleration of the low-frequency vibrator. Sampling the acceleration ratio of the two accelerometers on the earcup compares the low-frequency vibration conditions at two different locations on the earcup, and also compares the compression conditions at two different locations on the earcup. The mismatch between the coordination low-frequency vibration acceleration ratio and the low-frequency vibration acceleration ratio indicates a significant deviation in the low-frequency vibration of the earcups at two different positions. This means that the earcups are compressed differently at the two positions, resulting in different squeezing forces when the earcups come into contact with the wearer. In this case, the earcups are not properly compressed, indicating incorrect earcup wearing. The system then sends an alarm signal for improper earcup wearing to the earphone's low-frequency vibration system, allowing the wearer to be aware of the earphone's wearing status in a timely manner.

[0066] In the above embodiments, the low-frequency vibration control of the headphones is performed after they are worn.

[0067] All the aforementioned preset variables are set in the database for easy retrieval. Different preset variables are placed in different storage units, i.e., in different storage stacks. Furthermore, the low-frequency vibration acceleration ratio, auxiliary low-frequency vibration acceleration, and coordination low-frequency vibration acceleration ratio can be acquired by corresponding detectors, for example, by a low-frequency acceleration acquisition device.

[0068] In one embodiment, this application also provides a headphone low-frequency vibration control device, which is implemented using the headphone low-frequency vibration control method described in any of the above embodiments. In one embodiment, the headphone low-frequency vibration control device has functional modules for implementing the steps corresponding to the headphone low-frequency vibration control method. The headphone low-frequency vibration control device includes a low-frequency acceleration acquisition unit and a low-frequency static pressure control main board; the low-frequency acceleration acquisition unit is used to acquire the low-frequency vibration acceleration ratio of the headphone; the input terminal of the low-frequency static pressure control main board is connected to the output terminal of the low-frequency acceleration acquisition unit, and the low-frequency static pressure control main board is used to perform speed-pressure conversion processing on the low-frequency vibration acceleration ratio and a preset acceleration ratio to obtain the ear cup pre-compression amount; and send a low-frequency vibration parameter adjustment signal to the headphone low-frequency vibration system according to the ear cup pre-compression amount to adjust the low-frequency operating parameters of the headphone low-frequency vibration signal processor.

[0069] In this embodiment, a low-frequency acceleration acquisition device is used to collect the low-frequency vibration acceleration ratio, so as to determine the vibration trend of the headphones in a low-frequency state. Then, the low-frequency static pressure control motherboard compares the low-frequency vibration acceleration ratio with the preset acceleration ratio to determine the degree of vibration acceleration difference corresponding to the current low-frequency vibration of the headphones. This facilitates the determination of the compression degree corresponding to the vibration of the headphones in the current low-frequency environment. Finally, the low-frequency static pressure control motherboard adjusts the low-frequency operating parameters of the headphones' low-frequency vibration signal processor according to the aforementioned ear cup pre-compression amount, so as to improve the processing capability of the low-frequency vibration signal processor for low-frequency signals, thereby improving the accuracy of vibration transmission of the headphones in a low-frequency vibration environment and effectively improving the low-frequency vibration transmission effect of the headphones.

[0070] In another embodiment, the low-frequency acceleration acquisition device includes a plurality of second accelerometers or a plurality of first accelerometers. The plurality of second accelerometers are used to be disposed on each low-frequency vibrator at a different operating frequency band or in a different vibration direction, and the plurality of first accelerometers are used to be disposed on each different earbud section of the earphone. By collecting the vibration acceleration ratio at multiple positions of the earbud using the plurality of first accelerometers and collecting the vibration acceleration ratio of each low-frequency vibrator in the earphone using the plurality of second accelerometers, it is convenient to collect and compare the vibration conditions at various positions of the earbud, thereby improving the accuracy of low-frequency vibration transmission of the earphone.

[0071] The modules in the aforementioned headphone low-frequency vibration control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0072] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 11 As shown, the computer device includes a processor, memory, and a network interface connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage medium. The database stores data such as low-frequency vibration acceleration ratio, earpiece pre-compression, preset acceleration ratio, and low-frequency vibration tuning signals. The network interface is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for regulating low-frequency vibration in headphones.

[0073] Those skilled in the art will understand that Figure 11 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0074] In one embodiment, this application also provides a computer device including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0075] In one embodiment, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps in the above-described method embodiments.

[0076] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0077] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A method for regulating low frequency vibration of earphone, characterized in that, include: Obtain the low-frequency vibration acceleration ratio of the headphones; The low-frequency vibration acceleration ratio is converted to a preset acceleration ratio to obtain the ear cover pre-compression amount. Based on the ear cup pre-compression amount, a low-frequency adjustment signal is sent to the headphone low-frequency vibration system to adjust the low-frequency operating parameters of the headphone's low-frequency vibration signal processor. The process of obtaining the low-frequency vibration acceleration ratio of the headphones includes: Obtain the first low-frequency vibration acceleration of the earcups of the headphones; The second low-frequency vibration acceleration of the low-frequency vibrator of the earphone is obtained, wherein the direction of the first low-frequency vibration acceleration is the same as the direction of the second low-frequency vibration acceleration; The low-frequency vibration acceleration ratio is obtained based on the first low-frequency vibration acceleration and the second low-frequency vibration acceleration.

2. The earphone low-frequency vibration regulation method of claim 1, wherein, The step of performing a speed-pressure conversion process on the low-frequency vibration acceleration ratio and a preset acceleration ratio includes: The deviation between the low-frequency vibration acceleration ratio at each low-frequency frequency and multiple preset acceleration ratios is calculated to obtain multiple low-frequency acceleration ratio difference components.

3. The headphone low-frequency vibration control method according to claim 2, characterized in that, The step of calculating the deviation between the low-frequency vibration acceleration ratio at each low-frequency frequency and multiple preset acceleration ratios to obtain multiple low-frequency acceleration ratio difference components further includes: The multiple low-frequency speedup difference components are sorted to obtain the component with the smallest speedup difference. Obtain the earpiece pre-compression amount corresponding to the minimum acceleration ratio difference component.

4. The headphone low-frequency vibration control method according to claim 2, characterized in that, The deviation between the low-frequency vibration acceleration ratio at each low-frequency frequency and multiple preset acceleration ratios includes: Calculate the sum of squared deviations in the frequency domain between the low-frequency vibration acceleration ratio and the multiple preset acceleration ratios.

5. The headphone low-frequency vibration control method according to claim 1, characterized in that, The step of sending a low-frequency adjustment signal to the headphone low-frequency vibration system based on the earpiece pre-compression amount to adjust the low-frequency operating parameters of the headphone's low-frequency vibration signal processor includes: Check whether the pre-compression amount of the ear cover matches the preset compression amount; When the pre-compression of the earcups matches the preset compression, a low-vibration frequency adaptation signal is sent to the headphone low-vibration system.

6. A headphone low-frequency vibration control device employing the headphone low-frequency vibration control method as described in any one of claims 1 to 5, characterized in that, include: A low-frequency acceleration acquisition device is used to acquire the low-frequency vibration acceleration ratio of the headphones. A low-frequency static pressure control motherboard, the input end of which is connected to the output end of the low-frequency acceleration acquisition unit, is used to convert the low-frequency vibration acceleration ratio with a preset acceleration ratio to obtain the ear cover pre-compression amount. Based on the pre-compression amount of the earcups, a low-frequency adjustment signal is sent to the headphone low-frequency vibration system to adjust the low-frequency operating parameters of the headphone's low-frequency vibration signal processor.

7. The headphone low-frequency vibration control device according to claim 6, characterized in that, The low-frequency acceleration acquisition device includes multiple second accelerometers or multiple first accelerometers. The multiple second accelerometers are used to be installed on each low-frequency vibrator with different operating frequency bands or different vibration directions, and the multiple first accelerometers are used to be installed on each different ear cup section of the earphone.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the headphone low-frequency vibration control method according to any one of claims 1 to 5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the headphone low-frequency vibration control method according to any one of claims 1 to 5.

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