Stereo stereo effect management system and method based on immersion sound effect

By detecting environmental parameters and establishing a relationship model, the delay and gain parameters of the audio system are dynamically adjusted, which solves the problem that the audio system cannot adapt to environmental changes in real time during use, and realizes the adaptive ability of the audio system in different environments and the authenticity of the immersive sound effects.

CN120602843AActive Publication Date: 2025-09-05SHENZHEN HANKE TECH CO LTD
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Patent Information

Application Number
CN202510730499.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2025-09-05
Estimated Expiration
2045-06-03

AI Technical Summary

Technical Problem

The existing sound system is unable to adjust parameters in real time according to environmental changes during use, resulting in the "emperor's throne" phenomenon and low realism, affecting the experience of listeners in other areas.

Method used

By detecting the ambient temperature and humidity, venue parameters and sound pressure, a relationship model is established to dynamically adjust the delay and gain parameters of the audio to ensure accurate propagation and balanced distribution of sound in different environments.

Benefits of technology

The sound system's adaptability to different environmental conditions is realized, which avoids the problems of sound delay asynchrony and sound pressure imbalance, enhances the accuracy of sound positioning and spatial layering, and improves the authenticity of immersive sound effects.

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Abstract

The invention relates to the technical field of sound systems, in particular to a sound stereo sound effect management system and method based on an immersion sound effect, and the system comprises a detection module; a storage module; the analysis module is used for establishing a relation model, determining sound field parameters, acquiring propagation loss and propagation speed, and determining sound arrangement according to the meeting place parameters, the propagation loss, the propagation speed and the sound field parameters; and after the sound equipment starts to operate, acquiring the actual sound pressure of the meeting place, comparing the actual sound pressure with a preset standard, and responding to the condition that the sound pressure does not meet the requirement: adjusting the gain parameter of the sound equipment corresponding to the area which does not meet the requirement according to the sound pressure, or updating the propagation speed, and correcting the delay and the gain parameter of each sound equipment according to the updated propagation speed. Sound delay and gain parameters are dynamically adjusted by combining an influence formula of temperature and humidity on sound velocity, so that a sound system can automatically adapt to meeting place environment changes, and the authenticity of the immersion sound effect is enhanced.
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Description

Technical Field

[0001] The present invention relates to the technical field of audio systems, and in particular to an audio stereo effect management system and method based on immersive sound effects. Background Art

[0002] With the development of audio system technology, users have higher demands for intelligent audio systems. In order to achieve the best listening effect of the actual operating audio system, acoustic testing is usually carried out on the audio system, and then the audio system is adjusted to achieve the best music playback effect.

[0003] Patent publication number CN114650494A discloses a DSP sound system and an automatic acoustic test method for the sound system, comprising: a DSP digital signal processing module for testing digital audio signals and generating test results, an MCU control module outputting a control signal based on the test results to control the sound system to adjust parameters, a digital-to-analog conversion module for converting the digital audio signals back into analog audio signals, an amplifier module for amplifying the analog audio signals, and a speaker module playing sound when the analog audio signals are received. It can be seen that during use, the DSP sound system and the automatic acoustic test method for the sound system only adjust parameters based on the test results before the sound system is operating. After the sound system is operating, the parameters cannot be corrected based on the environmental impact during operation. Furthermore, during use, an "emperor's seat" is easily formed, affecting the perception of listeners in other areas. As the sound system continues to operate, the sense of reality decreases. Summary of the Invention

[0004] The purpose of the present invention is to provide an audio stereo effect management system and method based on immersive sound effects, so as to solve the problem that in the existing technology, parameters are only adjusted according to test results before the audio works, and after the audio works, the parameters cannot be corrected according to the influence of the environment during the working process. In addition, it is easy to form an "emperor's seat" during use, affecting the experience of listeners in other areas, and there is a problem of low realism as the audio continues to operate.

[0005] The present invention provides an immersive sound effect-based stereo sound effect management system, comprising:

[0006] Detection module, used to detect ambient temperature and humidity, venue parameters and sound pressure;

[0007] a storage module connected to the detection module and configured to store the ambient temperature and humidity and the corresponding propagation loss measured by the detection module;

[0008] an analysis module, connected to the detection module and the storage module, respectively, for establishing a relationship model based on historical ambient temperature and humidity, and determining sound field parameters according to actual needs. In response to determining the sound field parameters, the analysis module inputs the current ambient temperature and humidity into the relationship model to obtain propagation loss, calculates propagation velocity based on the current ambient temperature and humidity, and determines the sound arrangement based on the venue parameters, propagation loss, propagation velocity, and sound field parameters;

[0009] In response to the speakers being arranged and started to operate according to the speaker arrangement, the analysis module obtains the actual sound pressure of the venue and compares it with the preset standard. In response to the presence of sound pressure that does not meet the requirements, the analysis module adjusts the gain parameters of the speakers corresponding to the areas that do not meet the requirements according to the sound pressure, or updates the propagation speed and corrects the delay and gain parameters of each speaker according to the updated propagation speed.

[0010] The propagation loss is the loss of sound pressure per meter that the sound propagates in the air.

[0011] As an optimal technical solution for an audio stereo effect management system based on immersive sound effects, the relationship model is established based on the relationship between ambient temperature and humidity and propagation loss. If the ambient temperature and humidity are input, the propagation loss is output.

[0012] As a preferred technical solution for an immersive sound-based stereo sound management system, the analysis module determines the sound arrangement based on venue parameters, propagation loss, propagation speed, and sound field parameters, including:

[0013] Acquire the venue parameters and establish a three-dimensional coordinate system of the venue with the center of the venue as the origin;

[0014] Obtain propagation loss and propagation speed based on ambient temperature and humidity;

[0015] Obtain candidate audio installation locations and the number of speakers in the venue;

[0016] Determine the installation position and angle of the audio arrangement based on venue parameters, propagation loss, propagation speed and sound field parameters.

[0017] As a preferred technical solution for the stereo sound management system based on immersive sound effects, the analysis module obtains the actual sound pressure of the venue and compares it with the preset standard. In response to the actual sound pressure at each location in the venue meeting the preset standard, the operating parameters of the audio system are maintained and the actual sound pressure at each location in the venue is periodically detected.

[0018] In response to the actual sound pressure at each location in the venue not meeting the preset standard, a corresponding processing method is determined according to the area of ​​the region where the sound pressure does not meet the preset standard.

[0019] As a preferred technical solution for an immersive sound stereo sound management system, the analysis module determines a corresponding processing method based on the area of ​​the area that does not meet the preset standards. In response to the area of ​​the non-compliant area being smaller than the preset area, the gain parameter of the sound corresponding to the non-compliant area is adjusted according to the sound pressure.

[0020] In response to the area of ​​the non-compliant region being greater than or equal to the preset area, the analysis module re-acquires the ambient temperature and humidity of the venue, updates the propagation speed and propagation loss according to the re-acquired ambient temperature and humidity, and corrects the delay and gain parameters of each speaker.

[0021] As an optimal technical solution for an audio stereo effect management system based on immersive sound effects, the analysis module adjusts the gain parameters of the audio corresponding to the area that does not meet the requirements according to the sound pressure, records the difference between the sound pressure and the corresponding preset standard as the standard deviation value, and the adjustment amplitude of the gain parameter is positively correlated with the standard deviation value.

[0022] As a preferred technical solution for an immersive sound-based stereo sound management system, in response to correcting the delay of each speaker, the analysis module uses the center of the venue as the origin, calculates the distance of each speaker to the origin, calculates the propagation time of the sound of each speaker to reach the origin based on the updated propagation speed and distance, and applies delay compensation to the audio signal of each speaker based on the propagation time.

[0023] As an optimal technical solution for an immersive sound-based stereo sound management system, in response to modifying the gain parameters of each speaker, the analysis module inputs the current ambient temperature and humidity into the relationship model to obtain the current propagation loss, and adjusts the gain parameters of each speaker according to the current propagation loss.

[0024] As an optimal technical solution for the stereo sound management system based on immersive sound, the venue parameters include: space dimensions, sound absorption coefficients of wall or floor materials, and obstacle coordinates.

[0025] The present invention also provides a method for managing stereo sound effects based on immersive sound effects, comprising:

[0026] Establish a relationship model based on historical environmental temperature and humidity and the corresponding propagation loss;

[0027] Determine the sound field parameters according to actual needs;

[0028] Detect the current ambient temperature and humidity, and calculate the speed of sound propagation;

[0029] Inputting the current ambient temperature and humidity into the relationship model to obtain the sound propagation loss;

[0030] Determining a sound arrangement based on the sound propagation loss, sound propagation speed, and sound field parameters;

[0031] After the audio system starts running, the actual sound pressure in each area of ​​the venue is obtained and compared with the corresponding preset standards. In response to the existence of areas that do not meet the preset standards, the gain parameters of the audio system corresponding to the non-compliant areas are adjusted according to the sound pressure, or the propagation speed is updated, and the delay and gain parameters of each audio system are corrected according to the updated propagation speed until the sound pressure in each area meets the requirements.

[0032] Compared with the existing technology, the beneficial effect of the present invention is that by acquiring temperature and humidity, venue parameters and sound pressure data in real time, the sound propagation loss in different environments can be accurately calculated through a relational model, and the sound delay and gain parameters can be dynamically adjusted in combination with the formula for the influence of temperature and humidity on sound speed, so that the sound system can automatically adapt to changes in the venue environment, such as temperature fluctuations caused by air conditioning operation, humidity changes caused by gathering of people, etc., effectively avoiding the problems of sound delay asynchrony and sound pressure imbalance caused by environmental factors, ensuring that the sound is clearly transmitted from the correct direction and at an appropriate volume, enhancing the accuracy of sound positioning and the spatial layering of the sound effect, making the user feel as if they are in a real scene, thereby enhancing the authenticity of the immersive sound effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a structural block diagram of an immersive sound effect management system based on an embodiment of the present invention;

[0034] Figure 2 This is a flowchart of the steps of a method for managing stereo sound effects based on immersive sound effects according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or device comprising the elements.

[0037] See also Figure 1 As shown in FIG, it is a structural block diagram of an audio stereo effect management system based on immersive sound effects according to an embodiment of the present invention, including:

[0038] Detection module, used to detect ambient temperature and humidity, venue parameters and sound pressure;

[0039] a storage module connected to the detection module and used to store the ambient temperature and humidity and the corresponding propagation loss measured by the detection module;

[0040] an analysis module, connected to the detection module and the storage module, respectively, for establishing a relationship model based on historical ambient temperature and humidity, and determining sound field parameters according to actual needs. In response to determining the sound field parameters, the analysis module inputs the current ambient temperature and humidity into the relationship model to obtain propagation loss, calculates propagation velocity based on the current ambient temperature and humidity, and determines the speaker arrangement based on the venue parameters, propagation loss, propagation velocity, and sound field parameters;

[0041] In response to the speakers being placed according to the speaker arrangement and starting to operate, the analysis module obtains the actual sound pressure of the venue and compares it with the preset standard. In response to any sound pressure that does not meet the requirements, the analysis module adjusts the gain parameters of the speakers corresponding to the areas that do not meet the requirements according to the sound pressure, or updates the propagation speed and corrects the delay and gain parameters of each speaker according to the updated propagation speed.

[0042] Among them: propagation loss is the loss of sound pressure for every meter the sound propagates in the air.

[0043] Specifically, in an embodiment of the present invention, the detection module uses a high-precision temperature and humidity sensor (accuracy ±0.5°C, ±2% RH) to collect ambient temperature and humidity, and a distributed microphone array (≥8 measurement points) and an acoustic camera to collect sound pressure distribution and sound pressure. Venue parameters include: space dimensions, sound absorption coefficient of wall or floor materials (the sound absorption coefficient can be determined by querying the sound absorption level of different materials in the venue through big data and determining the sound absorption coefficient based on the sound absorption level, or directly detected), and obstacle coordinates. Sound field parameters include parameters related to the sound field distribution in the venue, such as target sound pressure and uniformity.

[0044] Specifically, on the one hand, the embodiments of the present invention utilize multiple sensors to detect ambient temperature, humidity, and sound pressure with high precision, providing an accurate data foundation for subsequent analysis and adjustment. Simultaneously, the use of relational models enables more accurate prediction of sound propagation loss, improving the precision of optimizing the sound layout and achieving a more ideal sound field effect. Furthermore, precise gain and delay adjustments ensure that the sound pressure in each area of ​​the venue meets preset standards under varying environmental conditions, significantly enhancing the authenticity of the immersive sound effect.

[0045] Furthermore, a relational model is established based on the relationship between ambient temperature and humidity and propagation loss. If ambient temperature and humidity are input, propagation loss is output.

[0046] In detail, in an embodiment of the present invention, the construction of the relationship model includes: before arranging the venue, collecting the sound propagation loss data of the venue under a large number of different environmental temperature and humidity conditions to form a rich training data set. A neural network model is constructed using a deep learning framework, the input layer of the model is the environmental temperature and humidity parameters, and the output layer is the corresponding propagation loss value. The weights and biases of the neural network are optimized by iteratively training the training data set multiple times until the degree of fit between the output result and the actual propagation loss value is greater than the preset standard. In implementation, the specific requirements for the degree of fit are determined by the model type and evaluation indicators. For core data, the degree of fit between the output result of the model and the actual data is generally required to be ≥0.95. Preferably, the preset standard is 0.95. In actual applications, the current environmental temperature and humidity are input into the trained relationship model to quickly obtain the corresponding propagation loss value. The data collection, organization and training process of the model are all existing technologies and will not be described in detail here.

[0047] Specifically, the relationship model constructed according to the method of the embodiment of the present invention can adapt to various complex environmental conditions. Through the training of the deep learning algorithm, the model can automatically learn the nonlinear relationship between ambient temperature and humidity and propagation loss. Compared with traditional empirical formulas or simple models, it has higher accuracy and adaptability, thereby further improving the authenticity of the immersive sound effects.

[0048] Furthermore, the analysis module determines the sound arrangement based on venue parameters, propagation loss, propagation speed, and sound field parameters, including:

[0049] Obtain the venue parameters and establish a three-dimensional coordinate system of the venue with the center of the venue as the origin;

[0050] Obtain propagation loss and propagation speed based on ambient temperature and humidity;

[0051] Obtain candidate audio installation locations and the number of speakers in the venue;

[0052] The installation position and angle of the speakers are determined according to the venue parameters, propagation loss, propagation speed and sound field parameters so that the sound field formed by the speakers can meet the sound field parameters.

[0053] During implementation, candidate installation points for the audio equipment are determined based on the propagation loss and propagation speed calculated based on the ambient temperature and humidity, combined with the three-dimensional structural information of the venue. Taking into account various possible installation methods, candidate points are distributed in different locations of the venue, including walls, ceilings, and floors. Acoustic simulation software (such as EASE) is used to perform detailed sound field simulation analysis on each candidate installation point. During the simulation, the reflection, absorption, obstruction, and other conditions involved in the propagation of sound are simulated in combination with the venue parameters to obtain the sound propagation path. Based on the sound propagation path, the propagation loss is introduced into the sound field simulation analysis, that is, the sound pressure gradually attenuates during the propagation of sound along the propagation path. After the propagation path is determined, the sound propagation time can be determined in combination with the three-dimensional coordinate system, thereby obtaining the final simulated sound field to evaluate the sound field distribution at different installation points and angles. Through continuous iterative calculations, the optimal installation position and angle combination that meets the sound field parameter requirements is found. The existing technology has related technologies that use optimization algorithms (such as particle swarm algorithms) to optimize the search for the installation position and angle of the speakers, which can realize the relevant content of the embodiment of the present invention regarding determining the speaker arrangement. This process is existing technology and will not be repeated here.

[0054] Specifically, by optimizing the layout of the speakers, a uniform distribution of the sound field in the venue can be achieved, reducing sound pressure deviation, so that listeners at different positions can feel consistent sound effects, thereby further enhancing the authenticity of the immersive sound effects.

[0055] Furthermore, the analysis module obtains the actual sound pressure of the venue and compares it with the preset standard. In response to the actual sound pressure at each location in the venue meeting the preset standard, the operating parameters of the audio system are maintained and the actual sound pressure at each location in the venue is periodically detected.

[0056] In response to the actual sound pressure at each location in the venue not meeting the preset standard, a corresponding processing method is determined according to the area of ​​the region where the sound pressure does not meet the preset standard.

[0057] Furthermore, in actual operation, different areas of the venue may require different sound pressures. For example, in a conference scenario, the sound pressure in the main listening area may be required to reach 80-90dB with a uniformity deviation of no more than ±3dB, while the sound pressure in other areas may be required to reach 75-95dB with a uniformity deviation of no more than ±3dB. Preferably, the sound pressure in the main listening area is 80-85dB with a uniformity deviation of no more than ±5dB, and the sound pressure in other areas is 75-80dB with a uniformity deviation of no more than ±3dB.

[0058] Specifically, the embodiment of the present invention divides the area and sets sound pressure detection points, so as to monitor the sound pressure distribution in the venue and compare it with the preset standards. If there are areas that do not meet the preset standards, judgment is made based on the area of ​​the non-compliant areas, and the situations that do not meet the preset standards are divided into two categories: the changes in sound propagation speed and propagation loss caused by changes in ambient temperature and humidity, and the operating parameters of a single speaker do not meet the current environment. This enables the system to be adjusted more specifically, thereby further improving the authenticity of the immersive sound effect.

[0059] Furthermore, the analysis module determines a corresponding processing method based on the area of ​​the area that does not meet the preset standard, and in response to the area of ​​the non-compliant area being smaller than the preset area, adjusts the gain parameter of the sound system corresponding to the non-compliant area based on the sound pressure;

[0060] In response to the area of ​​the non-compliant region being greater than or equal to a preset area, the analysis module re-acquires the ambient temperature and humidity of the venue, updates the propagation speed and propagation loss according to the re-acquired ambient temperature and humidity, and then corrects the delay and gain parameters of each speaker.

[0061] The preset area threshold is selected according to the venue area and actual conditions. Preferably, the preset area threshold is configured as follows: if the venue area is less than or equal to 100 square meters, the preset area threshold is 10%; if the venue area is greater than 100 square meters, the preset area threshold is 15%.

[0062] Furthermore, the analysis module adjusts the gain parameters of the audio equipment corresponding to the area that does not meet the requirements based on the sound pressure, and records the difference between the sound pressure and the corresponding preset standard as the standard deviation value, and the adjustment amplitude of the gain parameter is positively correlated with the standard deviation value, that is: if the standard deviation value is positive, the gain coefficient is increased, and the larger the standard deviation value, the greater the increase amplitude; if the standard deviation value is negative, the gain coefficient is reduced, and the smaller the standard deviation value, the smaller the decrease amplitude. An embodiment of the present invention provides a method for adjusting the gain parameter:

[0063] In response to the standard deviation being greater than or equal to a preset standard deviation, selecting a first adjustment coefficient to adjust the gain parameter;

[0064] In response to the standard deviation being a positive value and being smaller than a preset standard deviation, a second adjustment coefficient is selected to adjust the gain coefficient.

[0065] Specifically, in actual operation, the gain coefficient adjustment range cannot be too large, as excessive adjustment can cause audio distortion and other problems. Therefore, the gain coefficient selection range exists within a certain range. Depending on the actual situation, the gain coefficient selection range is between 1.0 and 1.25. Preferably, the first adjustment coefficient is 1.20 and the second adjustment coefficient is 1.10. The preset standard deviation is the average of the historical standard deviation values.

[0066] Specifically, in response to correcting the delay of each speaker, the analysis module calculates the distance from each speaker to the origin, with the center of the venue as the origin. Based on the updated propagation velocity and distance, it calculates the propagation time of the sound from each speaker to the origin. Delay compensation is then applied to the audio signal of each speaker based on the propagation time. The propagation velocity can be approximated by calculation or directly obtained using a detector, such as a sound velocity calculator that inputs ambient temperature, humidity, and air pressure to output the propagation velocity of sound in air. Therefore, the process of calculating or obtaining the sound propagation velocity is conventional and will not be further described here.

[0067] For each speaker, the time difference between it and the speaker with the longest propagation time is calculated. For example, if the propagation time of speaker A is 10ms, and the propagation time of speaker B, which has the longest propagation time, is 15ms, then the time difference between speakers A and B is 5ms. A digital signal processor applies delay compensation to the audio signal of that speaker, so that the time difference in the arrival of the sound from all speakers at the reference point is minimized. For example, for speaker A, the DSP delays its audio signal by 5ms, so that the time difference in the arrival of the sound from all speakers at the origin is minimized (e.g., less than 1ms), thus achieving synchronized arrival of the sound.

[0068] Specifically, this invention uses precise distance measurement and time calculation, along with the high-precision delay compensation function of the DSP, to ensure that delay adjustment accurately reflects the actual situation of sound propagation, thereby improving the accuracy and reliability of the system. By optimizing the synchronization of sound, the listener can more clearly perceive the direction and position changes of the sound, thereby significantly enhancing the realism and immersion of the immersive sound effect, bringing users a higher-quality auditory experience, and further enhancing the authenticity of the immersive sound effect.

[0069] In detail, in response to modifying the gain parameters of each speaker, the analysis module inputs the current ambient temperature and humidity into the relationship model to obtain the current propagation loss, and adjusts the gain parameters of each speaker according to the current propagation loss.

[0070] Specifically, the venue parameters include: space dimensions, sound absorption coefficients of wall or floor materials, and obstacle coordinates.

[0071] The current ambient temperature and humidity (including temperature, humidity, etc.) are input into the relationship model to obtain the current propagation loss value of each frequency band. The current propagation loss value is compared with the propagation loss value at the previous moment to calculate the loss difference of each frequency band. For example, if the propagation loss of the current high frequency band (8kHz-20kHz) is 3dB / m after update, and the propagation loss before update is 2dB / m, then the loss difference of this frequency band is 1dB / m. Since the corresponding distance can be determined in the process of determining the speaker arrangement, the amount by which the current sound pressure needs to be increased can be determined, thereby adjusting the gain parameter so that the increase in sound pressure reaches the corresponding value. In implementation, the corresponding frequency band gain parameters of each speaker can be adjusted by a digital signal processor (DSP) to compensate for the sound pressure changes caused by changes in propagation loss.

[0072] Specifically, the clear proportional relationship and precise calculation method enable gain adjustment to accurately reflect changes in propagation loss, improve the system's adaptability and adjustment accuracy, avoid sound distortion or other problems caused by improper gain adjustment, thereby effectively improving the clarity and layering of the sound, allowing listeners to hear the sound details of each frequency band more clearly, thereby further enhancing the authenticity of the immersive sound effect.

[0073] See also Figure 2 As shown, it is a flowchart of the steps of the audio stereo effect management method based on immersive sound effects according to an embodiment of the present invention, including:

[0074] Step S1: Establish a relationship model based on historical environmental temperature and humidity and the corresponding propagation loss;

[0075] Step S2, determining the sound field parameters according to actual needs;

[0076] Step S3, detecting the current ambient temperature and humidity, and calculating the speed of sound propagation;

[0077] Step S4, inputting the current ambient temperature and humidity into the relationship model to obtain the sound propagation loss;

[0078] Step S5, determining the sound arrangement based on venue parameters, propagation loss, propagation speed, and sound field parameters;

[0079] In step S6, after the sound system starts operating, the actual sound pressure in each area of ​​the venue is obtained and compared with the corresponding preset standard. In response to the existence of an area that does not meet the preset standard, the gain parameters of the sound system corresponding to the non-compliant area are adjusted according to the sound pressure, or the propagation speed is updated, and the delay and gain parameters of each sound system are corrected according to the updated propagation speed until the sound pressure in each area meets the requirements.

[0080] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An immersive sound effect-based stereo sound effect management system, characterized in that: include: Detection module, used to detect ambient temperature and humidity, venue parameters and sound pressure; a storage module connected to the detection module and configured to store the ambient temperature and humidity and the corresponding propagation loss measured by the detection module; an analysis module, connected to the detection module and the storage module, respectively, for establishing a relationship model based on historical ambient temperature and humidity, and determining sound field parameters according to actual needs. In response to determining the sound field parameters, the analysis module inputs the current ambient temperature and humidity into the relationship model to obtain propagation loss, calculates propagation velocity based on the current ambient temperature and humidity, and determines the sound arrangement based on the venue parameters, propagation loss, propagation velocity, and sound field parameters; In response to the speakers being arranged and started to operate according to the speaker arrangement, the analysis module obtains the actual sound pressure of the venue and compares it with the preset standard. In response to the presence of sound pressure that does not meet the requirements, the analysis module adjusts the gain parameters of the speakers corresponding to the areas that do not meet the requirements according to the sound pressure, or updates the propagation speed and corrects the delay and gain parameters of each speaker according to the updated propagation speed. The propagation loss is the loss of sound pressure per meter that the sound propagates in the air.

2. The immersive sound effect-based stereo sound effect management system according to claim 1, characterized in that: The relationship model is established based on the relationship between ambient temperature and humidity and propagation loss. If the ambient temperature and humidity are input, the propagation loss is output.

3. The immersive sound effect-based stereo sound effect management system according to claim 1, characterized in that: The analysis module determines the sound arrangement according to venue parameters, propagation loss, propagation speed, and sound field parameters, including: Acquire the venue parameters and establish a three-dimensional coordinate system of the venue with the center of the venue as the origin; Obtain propagation loss and propagation speed based on ambient temperature and humidity; Obtain candidate audio installation locations and the number of speakers in the venue; Determine the installation position and angle of the audio arrangement based on venue parameters, propagation loss, propagation speed and sound field parameters.

4. The immersive sound effect-based stereo sound effect management system according to claim 1, characterized in that: The analysis module obtains the actual sound pressure of the venue and compares it with the preset standard, including: in response to the actual sound pressure at each position of the venue meeting the preset standard, maintaining the operating parameters of the audio system and periodically detecting the actual sound pressure at each position of the venue; In response to the actual sound pressure at each location in the venue not meeting the preset standard, a corresponding processing method is determined according to the area of ​​the region where the sound pressure does not meet the preset standard.

5. The immersive sound effect-based stereo sound effect management system according to claim 4, characterized in that: The analysis module determines the corresponding processing method according to the area of ​​the area that does not meet the preset standards, including: In response to the area of ​​the non-compliant area being smaller than a preset area, adjusting a gain parameter of a sound system corresponding to the non-compliant area according to the sound pressure; In response to the area of ​​the non-compliant region being greater than or equal to the preset area, the analysis module re-acquires the ambient temperature and humidity of the venue, updates the propagation speed and propagation loss according to the re-acquired ambient temperature and humidity, and corrects the delay and gain parameters of each speaker.

6. The immersive sound effect-based stereo sound effect management system according to claim 5, characterized in that: The analysis module adjusts the gain parameters of the audio equipment corresponding to the area that does not meet the requirements according to the sound pressure, records the difference between the sound pressure and the corresponding preset standard as the standard deviation, and the adjustment range of the gain parameter is positively correlated with the standard deviation.

7. The immersive sound effect-based stereo sound effect management system according to claim 5, characterized in that: In response to correcting the delay of each speaker, the analysis module calculates the distance of each speaker to the origin with the center of the venue as the origin, calculates the propagation time of the sound of each speaker to reach the origin based on the updated propagation speed and distance, and applies delay compensation to the audio signal of each speaker based on the propagation time.

8. The immersive sound effect-based stereo sound effect management system according to claim 5, characterized in that: In response to modifying the gain parameters of each speaker, the analysis module inputs the current ambient temperature and humidity into the relationship model to obtain the current propagation loss, and adjusts the gain parameters of each speaker according to the current propagation loss.

9. The immersive sound effect-based stereo sound effect management system according to claim 1, characterized in that: The venue parameters include: space dimensions, sound absorption coefficients of wall or floor materials, and obstacle coordinates.

10. A management method for an immersive sound-based stereo sound effect management system according to any one of claims 1 to 9, characterized in that: include: Establish a relationship model based on historical environmental temperature and humidity and the corresponding propagation loss; Determine the sound field parameters according to actual needs; Detect the current ambient temperature and humidity, and obtain the speed of sound propagation; Inputting the current ambient temperature and humidity into the relationship model to obtain the sound propagation loss; Determining the sound arrangement based on venue parameters, the propagation loss, the propagation speed, and sound field parameters; After the audio system starts running, the actual sound pressure in each area of ​​the venue is obtained and compared with the corresponding preset standards. In response to the existence of areas that do not meet the preset standards, the gain parameters of the audio system corresponding to the non-compliant areas are adjusted according to the sound pressure, or the propagation speed is updated, and the delay and gain parameters of each audio system are corrected according to the updated propagation speed until the sound pressure in each area meets the requirements.

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