A method and device for reducing power consumption of a loudspeaker module

Abstract

The present invention provides a method and device for reducing the power consumption of a speaker module. The method comprises: receiving sound characterization parameters of the speaker module; determining the initial output voltage of the speaker module based on the sound characterization parameters and a mapping relationship library; and reducing the power consumption of the speaker module based on the initial output voltage. To address the problems of the prior art, the method and device for reducing the power consumption of a speaker module provided by the present invention automatically adjust the output voltage of the speaker module according to different sound emission scenarios, thereby reducing the required voltage while maintaining the original low-frequency performance of the overall system, thereby reducing power consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of digital control of loudspeakers, and in particular to a method and device for reducing the power consumption of a loudspeaker module. Background Art

[0002] Nowadays, in terminal devices that use speakers, such as smartphones and wearable devices, the power consumption of the speaker system is receiving more and more attention, that is, to improve battery life by reducing power consumption.

[0003] Speakers are essential electroacoustic transducers in electronic devices, primarily converting electrical energy into sound energy. However, when a typical speaker module vibrates and produces sound, the power consumption of the entire electronic device increases dramatically, reducing battery life and impacting the user experience.

[0004] Systems consisting of speaker modules and power amplifiers are generally divided into two categories.

[0005] One approach involves pairing the speaker with a standard amplifier. Based on the speaker module's specifications, acoustic performance, and reliability, a fixed maximum amplifier voltage limit is set. The standard amplifier will then provide an electrical signal within this maximum voltage range to the speaker module.

[0006] The second method involves speakers working with smart amplifiers. Smart amplifiers often monitor the amplitude and temperature of the speaker module. When the upper limit of the amplitude protection is reached, the output of the smart amplifier is limited to protect the speaker module.

[0007] As smartphones and wearable devices become increasingly miniaturized, their space is limited, and the physical space allocated to speaker modules is extremely tight. Within this confined space, the overall compliance of the accompanying speaker modules is relatively low, resulting in smaller amplitude vibrations at low frequencies and a corresponding decrease in loudness.

[0008] On the one hand, to ensure the speaker's low-frequency performance, the amplifier needs to provide a high voltage to achieve the desired effect. In actual daily use, low-frequency power consumption accounts for a significant portion of the speaker system's power consumption. High speaker system power consumption results in increased heat generation and reduced overall device usability, seriously impacting the user experience.

[0009] On the other hand, the performance of various accessories, acoustic reinforcement materials and other parts in the speaker module will decline with the increase of use, but the initially set maximum voltage, maximum amplitude, etc. will no longer match the current status of the device, thereby reducing the acoustic performance of the speaker. Summary of the Invention

[0010] In response to the problems in the prior art, the present invention provides a method and device for reducing the power consumption of a speaker module, which automatically adjusts the output voltage of the speaker module according to different sound emission scenarios, thereby reducing the required voltage and power consumption while ensuring the low-frequency performance of the original overall system.

[0011] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0012] In a first aspect, the present invention provides a method for reducing power consumption of a speaker module, comprising:

[0013] receiving sound characterization parameters of the speaker module;

[0014] Determining an initial output voltage of the speaker module according to the sound characterization parameters and the mapping relationship library;

[0015] The power consumption of the speaker module is reduced according to the initial output voltage.

[0016] In one embodiment, the sound characterization parameters include: frequency, amplitude, temperature, and resistance; and the method for generating the mapping relationship library includes:

[0017] In different sound emission scenarios, determining the corresponding initial output voltage according to the sound emission characteristic parameters of the speaker module, so as to generate a plurality of mapping relationships between frequency, amplitude, temperature, and resistance and the initial output voltage;

[0018] The mapping relationship library is generated according to a plurality of mapping relationships.

[0019] In one embodiment, determining the initial output voltage corresponding to the speaker module according to the sound characterization parameter thereof includes:

[0020] Extract the sound feature information of the speaker module in different sound scenarios;

[0021] The initial output voltage is determined based on the simulated geometric model, sound characteristic information, frequency, amplitude, temperature, and resistance of the speaker module.

[0022] In one embodiment, reducing the power consumption of the speaker module according to the initial output voltage includes:

[0023] Determine the actual output voltage of the speaker module based on the initial output voltage;

[0024] Reduce the speaker power consumption according to the actual output voltage.

[0025] In one embodiment, determining the actual output voltage of the speaker module according to the initial output voltage includes:

[0026] The speaker is bass-enhanced and dynamically filtered based on the initial output voltage to determine the actual output voltage.

[0027] In one embodiment, the method for reducing the power consumption of the speaker module further includes:

[0028] Acoustic enhancement materials are added to the resonant cavity of the speaker module;

[0029] The acoustic enhancement material includes a plurality of zeolite particles, each zeolite particle including silica and aluminum components, wherein a silica to aluminum mass ratio is at least 200.

[0030] In a second aspect, the present invention provides a device for reducing power consumption of a speaker module, comprising:

[0031] A characterization parameter receiving module, used to receive the sound characterization parameters of the speaker module;

[0032] An initial output voltage determination module, configured to determine an initial output voltage of the speaker module based on the sound characterization parameters and the mapping relationship library;

[0033] The speaker power consumption reduction module is used to reduce the power consumption of the speaker module according to the initial output voltage.

[0034] In one embodiment, the sound characterization parameters include: frequency, amplitude, temperature, and resistance; the apparatus for reducing the power consumption of the speaker module further includes: a mapping relationship library generation module for generating a mapping relationship library, the mapping relationship library generation module including:

[0035] A mapping relationship generating unit, configured to determine the corresponding initial output voltage according to the sound characterization parameters of the speaker module in different sound emission scenarios, so as to generate a plurality of mapping relationships between frequency, amplitude, temperature, and resistance and the initial output voltage;

[0036] A mapping relationship library generating unit, configured to generate the mapping relationship library according to a plurality of mapping relationships;

[0037] In one embodiment, the mapping relationship generating unit includes:

[0038] A feature information extraction unit is used to extract sound feature information of the speaker module in different sound emission scenarios;

[0039] an initial output voltage determining unit, configured to determine the initial output voltage based on a simulated geometric model, sound characteristic information, frequency, amplitude, temperature, and resistance of the speaker module;

[0040] In one embodiment, the speaker power consumption reduction module includes:

[0041] an actual output voltage determining unit, configured to determine the actual output voltage of the speaker module according to the initial output voltage;

[0042] a speaker power consumption reduction unit, configured to reduce the speaker power consumption according to the actual output voltage;

[0043] In one embodiment, the actual output voltage determination unit is specifically configured to perform bass enhancement and dynamic filtering on the speaker according to the initial output voltage to determine the actual output voltage;

[0044] In one embodiment, the device for reducing power consumption of the speaker module further includes:

[0045] An acoustic enhancement material adding unit, used for adding acoustic enhancement material into the resonant cavity of the speaker module;

[0046] The acoustic enhancement material includes a plurality of zeolite particles, each zeolite particle including silica and aluminum components, wherein a silica to aluminum mass ratio is at least 200.

[0047] In a third aspect, the present invention provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, steps of a method for reducing the power consumption of a speaker module are implemented.

[0048] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of a method for reducing power consumption of a speaker module.

[0049] From the above description, it can be seen that the method and device for reducing the power consumption of the speaker module provided by the embodiment of the present invention first receive the sound characterization parameters of the speaker module; then, determine the initial output voltage of the speaker module based on the sound characterization parameters and the pre-generated mapping relationship library; finally, reduce the power consumption of the speaker module based on the initial output voltage. On the one hand, the present invention automatically adjusts the remodeling and parameter adjustment inside the power module to ensure the original low-frequency performance of the overall system while reducing the required voltage and reducing power consumption. On the other hand, adding acoustic enhancement materials to the speaker module changes the equivalent acoustic compliance and other characteristics of the speaker module, affecting the low-frequency performance of the speaker, so that it can achieve a larger low-frequency amplitude and high sensitivity with a smaller voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] Figure 1 This is a schematic diagram of a first structure of a system for reducing power consumption of a speaker module according to an embodiment of the present application;

[0052] Figure 2 This is a second structural diagram of a system for reducing power consumption of a speaker module according to an embodiment of the present application;

[0053] Figure 3 Schematic diagram of the process of reducing the power consumption of the speaker module in an embodiment of the present invention Figure 1 ;

[0054] Figure 4 Schematic diagram of the process of reducing the power consumption of the speaker module in an embodiment of the present invention Figure 2 ;

[0055] Figure 5 4 is a flow chart of step 400 in an embodiment of the present invention;

[0056] Figure 6 This is a flow chart of step 401 in an embodiment of the present invention;

[0057] Figure 7 300 is a flowchart of an embodiment of the present invention;

[0058] Figure 8 301 is a flow chart of step 301 in an embodiment of the present invention;

[0059] Figure 9 Schematic diagram of the process of reducing the power consumption of the speaker module in an embodiment of the present invention Figure 3 ;

[0060] Figure 10 Schematic diagram of the process of reducing the power consumption of the speaker module in an embodiment of the present invention Figure 4 ;

[0061] Figure 11 Schematic diagram of a flow chart of a method for reducing power consumption of a speaker module in a specific application example of the present invention;

[0062] Figure 12 1 is a structural block diagram of a system for reducing power consumption of a speaker module according to an embodiment of the present invention;

[0063] Figure 13 This is a structural block diagram of an automatic energy consumption adjustment module in a system for reducing power consumption of a speaker module in an embodiment of the present invention;

[0064] Figure 14 The structural frame of the device for reducing power consumption of the loudspeaker module in the embodiment of the present invention is Figure 1 ;

[0065] Figure 15 The structural frame of the device for reducing power consumption of the loudspeaker module in the embodiment of the present invention is Figure 2 ;

[0066] Figure 16 Schematic diagram of the structure of the mapping relationship library generation module 40 in a specific application example of the present invention;

[0067] Figure 17 Schematic diagram of the structure of the mapping relationship generating unit 401 in a specific application example of the present invention;

[0068] Figure 18 Schematic diagram of the structure of the speaker power consumption reduction module 30 in a specific application example of the present invention;

[0069] Figure 19 The structural frame of the device for reducing power consumption of the loudspeaker module in the embodiment of the present invention is Figure 3 ;

[0070] Figure 20 Schematic diagram of the structure of an electronic device in an embodiment of the present invention. DETAILED DESCRIPTION

[0071] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0072] In one embodiment, the present application also provides a system for reducing power consumption of a speaker module, see Figure 1 The system may be a server A1, which may be connected to multiple vocalization parameter monitors B1 for communication. The server A1 may also be connected to multiple databases for communication, or as shown in FIG. Figure 2 As shown, these databases can also be directly stored in server A1. The sound characterization parameter monitor B1 is used to measure the sound characterization parameters of the speaker module in real time. After receiving the sound characterization parameters, server A1 determines the initial output voltage of the speaker based on the characterization parameters and a pre-generated mapping relationship library. The speaker power consumption is then reduced based on the initial output voltage. The speaker power consumption reduction result is then displayed to the user via client C1.

[0073] It is understandable that the client C1 may include a smart phone, a tablet electronic device, a network set-top box, a portable computer, a desktop computer, a personal digital assistant (PDA), a vehicle-mounted device, a smart wearable device, etc. Among them, the smart wearable device may include smart glasses, smart watches, smart bracelets, etc.

[0074] In practical applications, the part of "determining the initial output voltage of the speaker module according to the sound characterization parameters and the pre-generated mapping relationship library, and reducing the power consumption of the speaker module according to the initial output voltage" can be executed on the server A1 side as described above, that is, Figure 1 or Figure 2 The architecture shown can also be such that all operations are completed in the client C1 device. The specific selection can be based on the processing capabilities of the client device and the limitations of the user's usage scenario. This application does not limit this. If all operations are completed in the client device, the client device may also include a processor for performing operations such as "determining the initial output voltage of the speaker module based on the sound characterization parameters and the pre-generated mapping relationship library, and reducing the power consumption of the speaker module based on the initial output voltage".

[0075] The above-mentioned client C1 device may have a communication module (i.e., a communication unit) that can communicate with a remote server to realize data transmission with the server. The server may include a server on the side of "determining the initial output voltage of the speaker module based on the sound characterization parameters and the pre-generated mapping relationship library; and reducing the power consumption of the speaker module based on the initial output voltage". Other implementation scenarios may also include a server on an intermediate platform, such as a server on a third-party server platform that has a communication link with "determining the initial output voltage of the speaker module based on the sound characterization parameters and the pre-generated mapping relationship library; and reducing the power consumption of the speaker module based on the initial output voltage". The server may include a single computer device, or a server cluster consisting of multiple servers, or a server structure of a distributed device.

[0076] The server and the client device may communicate using any suitable network protocol, including network protocols that have not yet been developed as of the filing date of this application. Examples of network protocols include TCP / IP, UDP / IP, HTTP, and HTTPS. Examples of network protocols include RPC (Remote Procedure Call Protocol) and REST (Representational State Transfer) that are used on top of the aforementioned protocols.

[0077] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. The method for reducing the power consumption of a speaker module provided in the embodiments of the present invention can be applied to power amplifiers in computers, smart phones, tablet electronic devices, speakers, personal digital assistants (PDAs), vehicle-mounted devices, and other smart wearable devices.

[0078] The embodiment of the present invention provides a specific implementation method of a method for reducing power consumption of a speaker module, see Figure 3 , the method specifically includes the following contents:

[0079] Step 100: Receive sound characterization parameters of a speaker module.

[0080] The sound characterization parameters in step 100 include: the frequency, amplitude, temperature and resistance of the speaker module. When the speaker makes a sound, the above parameters are monitored in real time, and the monitoring results are sent to the power consumption reduction module and the power amplification module. The connection between the power consumption reduction module and the speaker module can be an electrical connection or a contactless connection. For example, when the diaphragm amplitude in the speaker module is monitored by the automatic adjustment energy consumption module, non-contact monitoring can be performed by laser, visual detection and other methods; when monitoring the sound, non-contact monitoring can be performed by micro-microphone and other methods; when monitoring the temperature, non-contact monitoring can be performed by infrared and other methods. In some cases, the relationship between various types of electrical signals of the speaker and the diaphragm amplitude, speaker sound, and speaker temperature can be obtained through external testing before assembly, so the electrical signals of the speaker can be directly monitored during use to feedback the above conditions. The above-mentioned monitoring methods can be used one by one or in combination.

[0081] Step 200: Determine the initial output voltage of the speaker module according to the sound characterization parameters and the mapping relationship library.

[0082] It will be appreciated that in the mapping library in step 200, multiple sound characterization parameters, namely, multiple frequencies, amplitudes, temperatures, and resistances, are in one-to-one correspondence with multiple output voltages. The sound characterization parameters in step 100 and the mapping library can be used to determine the initial output voltage of the speaker model. Alternatively, the mapping library can be pre-generated. In this case, the implementation of step 200 involves calculating the initial output voltage in real time based on the received sound characterization parameters (also received in real time) and the pre-generated mapping library. This mapping library can also be calculated in real time, but this method places higher demands on the system and consumes more system resources. However, the resulting mapping is relatively more accurate.

[0083] Step 300: reducing the power consumption of the speaker module according to the initial output voltage.

[0084] Based on step 200, the initial output voltage is converted into an actual output voltage, and this actual output voltage is input into the speaker module to achieve the purpose of reducing the power consumption of the speaker module. It is understood that reducing the power consumption of the speaker module can be achieved through real-time monitoring, periodic monitoring, or monitoring at a specific power level. Real-time monitoring refers to continuous monitoring, periodic monitoring refers to monitoring at manually specified / fixed time period nodes, and monitoring at a specific power level refers to initiating monitoring when a manually specified / fixed output power level is reached. In other words, the initial output voltage and the actual output voltage may change in real time.

[0085] From the above description, it can be seen that the method for reducing the power consumption of the speaker module provided by the embodiment of the present invention first receives the sound characterization parameters of the speaker module; then, determines the initial output voltage of the speaker module based on the sound characterization parameters and the pre-generated mapping relationship library; finally, reduces the power consumption of the speaker module based on the initial output voltage. In a system composed of a speaker module and an ordinary power amplifier, a fixed maximum voltage limit of the power amplifier is usually set, and the power amplifier will provide an electrical signal within the maximum voltage range to the speaker module. If the speaker module is equipped with acoustic enhancement materials, the maximum voltage value is usually lowered in the initial parameter setting adjustment of the speaker. If an intelligent power amplifier is used, the intelligent power amplifier will only limit its voltage output when the diaphragm amplitude in the speaker module reaches a fixed upper limit value.

[0086] In summary, the present invention automatically adjusts the remodeling and parameter adjustments within the power module to maintain the original low-frequency performance of the overall system while reducing the required voltage and lowering power consumption. Furthermore, the addition of acoustic enhancement materials to the speaker module alters the module's equivalent acoustic compliance and other characteristics, affecting the speaker's low-frequency performance, enabling it to achieve greater low-frequency amplitude and higher sensitivity with less voltage.

[0087] In one embodiment, the sound characterization parameters include: frequency, amplitude, temperature, and resistance;

[0088] In one embodiment, see Figure 4 The method for reducing the power consumption of the speaker module further includes: step 400: generating the mapping relationship library, then referring to Figure 5 , step 400 further includes:

[0089] Step 401: determining the corresponding initial output voltage according to the sound characterization parameters of the speaker module in different sound emission scenarios, so as to generate a plurality of mapping relationships between frequency, amplitude, temperature, and resistance and the initial output voltage;

[0090] For the occurrence scenes, they can be divided into parks, stations, squares, shopping malls, streets, schools, cinemas, theaters, etc. For different sound scenes, specific sound characterization parameters can be input into a specific simulation model to determine the output voltage under different sound scenes. In addition, the simulation model is not limited to one type. Different simulation models can also be determined according to the sound scene, such as sliding mode observer, Kalman filter, adaptive filter, least mean square adaptive filter, enhanced recursive least squares filter, extended Kalman filter, ensemble Kalman filter, high-order extended Kalman filter, dynamic Bayesian network, etc.

[0091] Step 402: Generate the mapping relationship library according to multiple mapping relationships.

[0092] In one embodiment, see Figure 6 , step 401 includes:

[0093] Step 4011: extracting sound feature information of the speaker module in different sound emission scenarios;

[0094] Preferably, the sound feature information in step 4011 includes loudness, pitch and timbre. Specifically:

[0095] Loudness: The human ear's subjective perception of sound intensity is called loudness. Loudness is related to the amplitude of the sound wave's vibrations. Generally speaking, the greater the amplitude of the sound wave's vibrations, the louder it is.

[0096] Pitch: The human ear's perception of the pitch of a sound is called pitch. Pitch is primarily related to the frequency of the sound waves. Higher sound waves have higher pitch. Frequency is the number of times an object vibrates in one second. The faster the object vibrates, the higher the frequency. Therefore, pitch is related to the frequency of the sound-producing body's vibrations. Higher frequencies produce higher pitch, while lower frequencies produce lower pitch. For example, a bass singer can sing as low as 65 times per second, while a soprano can sing as high as 1,180 times per second.

[0097] The maximum distance an object deviates from its original position during vibration is called its amplitude. Experiments have shown that the greater the amplitude of a tuning fork prong or rubber band, the louder the sound perceived. Therefore, the perceived loudness of a sound—the sound's intensity—is related to the amplitude of the sound-producing object. The larger the amplitude, the louder it is; the smaller the amplitude, the quieter it is. Loudness is also related to the distance from the sound source. Sound propagates in all directions from the source, becoming increasingly dispersed as it travels farther away. Therefore, the farther away from the source, the quieter the sound. If we can find a way to reduce the dispersion of sound, we can increase its loudness.

[0098] Timbre: Timbre is the characteristic that distinguishes two sounds of the same loudness and pitch, or the human ear's comprehensive response to sound waves of varying frequencies and intensities. Timbre is related to the vibration waveform of the sound wave, or the spectral structure of the sound.

[0099] Step 4011 is implemented in three stages. The first stage is the decomposition stage, which simulates the human auditory processing process. Based on the different sensitivity of the human ear to speech signals within different sound frequencies, the mixed speech signal is decomposed by frequency to obtain speech elements in different frequency ranges. Using the ear pan model that mimics the human ear in speech signal processing, the mixed signal is transformed into a transform domain that can distinguish its individual components.

[0100] The second stage is the organization stage: To form auditory segments that represent a specific sound source signal, speech elements must be grouped according to their source. Specifically, appropriate separation cues are used and sound elements are grouped according to certain organizational principles. When calculating different vocalization scenarios, the quality of the organization stage is crucial for speech separation, and appropriate separation cues have a significant impact on the organization stage. Harmonic characteristics, cues, and time-frequency plots can be used as separation cues. Blackboard models or neural networks from the field of artificial intelligence can also be used as separation cues.

[0101] The third stage is the resynthesis stage, which is to restore the discrete speech signal elements to obtain sound feature information.

[0102] Step 4012: Determine the initial output voltage based on the simulated geometric model, sound characteristic information, frequency, amplitude, temperature, and resistance of the speaker module.

[0103] It is understandable that the size, shape and other relevant parameters of the speaker also affect its specific sound conditions. Therefore, it is necessary to first establish a simulation geometric model of the speaker module, and through specific algorithms (such as the Meddis model, Hu-Wang model) and pre-set sound flatness, determine the initial output voltage based on the simulation geometric model, sound characteristic information, frequency, amplitude, temperature and resistance.

[0104] It is understandable that speaker modules with different shapes, structures, and components produce different sounds. Therefore, it is necessary to first establish a simulation geometric model of the target speaker module. Then, based on the simulation geometric model, sound characteristic information, frequency, amplitude, temperature, and resistance, the initial output voltage is calculated using formula (1) (Meddis model).

[0105]

[0106] In the above formula, where: Ui is the initial output voltage, x is the target cone displacement, K(x) is the stiffness of the cone suspension, Rms is the mechanical resistance of the cone suspension, M is the mechanical moving mass of the voice coil and cone, and Bl(x) is the force factor of the voice coil.

[0107] In one embodiment, see Figure 7 , step 300 includes:

[0108] Step 301: Determine the actual output voltage of the speaker module according to the initial output voltage;

[0109] Step 302: Reduce the power consumption of the speaker according to the actual output voltage.

[0110] In step 301 and step 302, after determining the initial output voltage, it is also necessary to determine the actual output voltage according to different preset effects, and input the actual output voltage into the speaker module so that it produces sound according to the output voltage.

[0111] In one embodiment, see Figure 8 , step 301 includes:

[0112] Step 3011: Perform bass enhancement and dynamic filtering on the speaker according to the initial output voltage to determine the actual output voltage.

[0113] For bass enhancement, an audio filter circuit can be designed to boost the bass frequency band of an electronic audio signal used to generate an audio output relative to higher frequencies when the volume level is reduced. Specifically, the bass enhancement circuit receives an audio input signal and provides a filtered audio output signal having bass frequencies controlled to at least partially compensate for the Fletcher-Munson effect.

[0114] On the other hand, dynamic filter circuits generate sounds having bass frequencies that are automatically controlled relative to higher frequencies as a function of the volume of the generated sound. These conventional audio circuits can quantize the volume level based on sound pressure or based on the amplitude of the audio signal and can enhance the low-frequency components of the sound output.

[0115] In one embodiment, see Figure 9 , the methods for reducing the power consumption of the speaker module also include:

[0116] Step 500: Adding acoustic enhancement material into the resonant cavity of the speaker module;

[0117] The acoustic enhancement material includes: multiple zeolite particles, each composed of silica and aluminum, with a silicon-to-aluminum mass ratio of at least 200. The acoustic enhancement material is added to the speaker module's resonant cavity. Depending on the speaker unit type and the module's specific structure, the material can be added directly to the module's rear cavity in various forms, such as granules, blocks, or sheets. Alternatively, the material can be added to a separate, isolated area within the module's rear cavity. Alternatively, the acoustic enhancement material can be packaged separately and added directly to the module's rear cavity.

[0118] The acoustic enhancement material includes a plurality of zeolite particles, each zeolite particle including silica and aluminum components, wherein a silica to aluminum mass ratio is at least 200.

[0119] Preferably, the acoustic enhancement material also includes a binder that bonds multiple zeolite particles together to form zeolite granules; wherein the zeolite granules have a diameter less than 0.9 mm and greater than 0.1 mm; and wherein the zeolite granules are suitable for shifting the resonant frequency of the back cavity volume of the acoustic device and for reducing the electrical impedance of the acoustic device.

[0120] In one embodiment, see Figure 10 , the methods for reducing the power consumption of the speaker module also include:

[0121] Step 600: Perform temperature protection and diaphragm protection on the speaker module.

[0122] Existing speaker module damage generally includes the following two situations: 1) the speaker diaphragm vibrates too much, causing speaker damage; 2) the speaker temperature is too high, causing speaker damage.

[0123] For temperature protection, real-time measurement of the speaker module's voltage and current provides real-time impedance. Based on the temperature rise coefficient, the real-time temperature can be determined, enabling temperature protection. Furthermore, as the speaker heats up, its impedance changes. By measuring the impedance using IV, combined with the speaker coil's temperature rise coefficient (Tcoef), the real-time speaker temperature can be determined, enabling temperature protection.

[0124] For diaphragm protection, diaphragm displacement can be considered the result of the combined effects of the Lorentz force, spring force, and air impedance. First, an equivalent circuit model of the target speaker module is established. If its parameters do not change with factors such as diaphragm displacement and temperature, it can be considered a linear system (this approximation is generally valid when the diaphragm displacement is small). Therefore, the entire system can be represented by a transfer function, and the relationship between amplitude and voltage (the speaker amplitude model) is determined based on this transfer function. Finally, based on the speaker amplitude model, the speaker diaphragm displacement is predicted and the corresponding real-time gain is calculated to ensure that the speaker amplitude operates within a safe range.

[0125] To further illustrate this solution, the present invention provides a specific application example of a method for reducing power consumption of a speaker module. The specific application example includes the following contents, see Figure 11 .

[0126] See also Figure 12 as well as Figure 13The present invention also provides a device for reducing speaker module power consumption, comprising a processor module, an automatic energy consumption adjustment module, an amplifier module, and a speaker module with acoustic enhancement material. The automatic energy consumption adjustment module is connected to the processor module, receives audio signals from the processor module, and is connected to the speaker module and the power amplifier module to monitor the amplitude, speaker sound at a specific frequency, speaker temperature, and electrical signals (e.g., voltage, resistance, etc.) of the speaker. The automatic energy consumption adjustment module further comprises a calculation unit and multiple sensor units.

[0127] S1: The processor module sends the first signal.

[0128] The power amplifier module is connected to the automatic energy consumption control module and the speaker module. It receives the signal set from the automatic energy consumption control module and processes the output power based on the signal, which is then delivered to the speaker module. The acoustic enhancement device is installed in the speaker module's resonant cavity to increase the speaker module's amplitude at low frequencies at the same voltage.

[0129] S2: The automatic energy consumption adjustment module receives the first signal and the fourth signal, and sends a second signal according to the first signal.

[0130] The automatic energy consumption adjustment module is electrically connected to the processor module. The automatic energy consumption adjustment module can be directly connected to the processor module or indirectly connected to the processor module (ie, other modules / components are connected between the two).

[0131] The automatic energy consumption adjustment module can monitor the power consumption in real time, periodically, or at a specific power level. Real-time monitoring refers to continuous monitoring, periodically to monitoring at specified / fixed time intervals, and at a specific power level to initiate monitoring when a specified / fixed output power level is reached.

[0132] S3: The amplifier module receives the second signal and sends a third signal according to the second signal.

[0133] The automatic energy consumption adjustment module can process the monitoring results and generate a signal set. The processing method can be based on only one current monitoring result, or it can be based on multiple recent monitoring results (the number can be externally input or fixed), or it can be based on multiple monitoring results within a certain historical time period (the length of the historical time period can be externally input or fixed, and the time period can be designed to start recording from the beginning of assembly and use of the speaker). Processing methods include calculation, modeling and fitting, etc. The set includes one or more signals. One or more signals include at least a direct voltage signal, that is, a processed audio signal; it may also further include a voltage regulation signal, such as a voltage amplification factor, a limited maximum output voltage, a low-frequency protection voltage, etc. There is a direct correlation between the setting of the protection parameters of the power amplifier module and the output voltage of the power amplifier module. The signal set can be a digital signal, an analog signal, a combination of digital and analog signals, etc.

[0134] S4: The speaker module receives the third signal and emits a sound and a fourth signal according to the third signal.

[0135] After receiving the signal set from the automatic energy consumption module, the power amplifier module makes adjustments based on the signal type. The power amplifier module's setting parameters include voltage gain, maximum output voltage limit, and low-frequency protection voltage. The power amplifier module can process the direct voltage signal and output a voltage. It can also adjust specific parameters based on the voltage regulation signal and then process the output based on the specific parameters and the direct voltage signal. The power amplifier module then outputs the regulated voltage to the speaker module, causing the speaker's diaphragm to vibrate and produce sound.

[0136] In some cases, the automatic energy consumption adjustment module and the power amplifier module can be independent; in other cases, the automatic energy consumption adjustment module and the power amplifier module can be integrated. After the system is assembled, it can be tested (the test time can be set according to the adjustment algorithm of the automatic adjustment module) to obtain the frequency response curve and amplitude curve corresponding to different voltages in the initial state of the speaker module, thereby determining the initial maximum output voltage and / or voltage gain of the power amplifier module.

[0137] See Table 1. The power consumption of the speaker system was measured on a mobile phone using a programmable power supply and a power consumption board. The programmable power supply maintained a 4V output. The speaker module's rear cavity had a volume of 0.5cc. A 1216-inch, 0.4mm-diameter speaker was used, along with an amplifier module and an automatic power consumption control module. When playing music A at the same loudness level, the average power consumption was as follows:

[0138] Table 1

[0139]

[0140] As can be seen from the above description, the speaker module power reduction method provided by the embodiments of the present invention provides a lower power amplifier voltage than traditional systems and improves sensitivity. This reduces power consumption and heat generation, thereby increasing the overall device lifespan and improving the user experience. As the performance of the various components (such as the diaphragm) and acoustic reinforcement materials in the speaker module degrades over time, the system adjusts system parameters in real time, providing users with a long-lasting, like-new experience.

[0141] Based on the same inventive concept, the embodiments of the present application also provide a device for reducing the power consumption of a speaker module, which can be used to implement the method described in the above embodiments, such as the following embodiments. Since the principle of solving the problem by the device for reducing the power consumption of a speaker module is similar to that of reducing the power consumption of a speaker module, the implementation of the device for reducing the power consumption of a speaker module can refer to the implementation of the method for reducing the power consumption of a speaker module, and the repeated parts will not be repeated. As used below, the term "unit" or "module" can be a combination of software and / or hardware that implements a predetermined function. Although the system described in the following embodiments is preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and conceived.

[0142] The embodiment of the present invention provides a specific implementation of a device for reducing the power consumption of a speaker module that can realize a method for reducing the power consumption of a speaker module. Figure 14 The device for reducing the power consumption of the speaker module specifically includes the following contents:

[0143] Characterization parameter receiving module 10, used to receive the sound characterization parameters of the speaker module;

[0144] An initial output voltage determination module 20 is configured to determine an initial output voltage of the speaker module based on the sound characterization parameters and the mapping relationship library;

[0145] The speaker power consumption reduction module 30 is configured to reduce the power consumption of the speaker module according to the initial output voltage.

[0146] In one embodiment, the sound characterization parameters include: frequency, amplitude, temperature and resistance; see Figure 15 , further comprising: a mapping relationship library generating module 40, for generating a mapping relationship library, see Figure 16 , the mapping relationship library generation module 40 includes:

[0147] A mapping relationship generating unit 401 is configured to determine the corresponding initial output voltage according to the sound characterization parameters of the speaker module in different sound emission scenarios, so as to generate mapping relationships between multiple frequencies, amplitudes, temperatures, and resistances and the initial output voltage;

[0148] A mapping relationship library generating unit 402 is configured to generate the mapping relationship library according to a plurality of mapping relationships;

[0149] In one embodiment, see Figure 17 , the mapping relationship generating unit 401 includes:

[0150] The feature information extraction unit 4011 is used to extract the sound feature information of the speaker module in different sound emission scenarios;

[0151] An initial output voltage determining unit 4012 is configured to determine an initial output voltage based on a simulated geometric model, sound characteristic information, frequency, amplitude, temperature, and resistance of the speaker module;

[0152] In one embodiment, see Figure 18 , the speaker power consumption reduction module 30 includes:

[0153] The actual output voltage determining unit 301 is configured to determine the actual output voltage of the speaker module according to the initial output voltage;

[0154] The speaker power consumption reduction unit 302 is used to reduce the speaker power consumption according to the actual output voltage;

[0155] In one embodiment, the actual output voltage determination unit 301 is specifically configured to perform bass enhancement and dynamic filtering on the speaker according to the initial output voltage to determine the actual output voltage;

[0156] In one embodiment, see Figure 19 , the device for reducing the power consumption of the speaker module also includes:

[0157] The acoustic enhancement material adding unit 50 is used to add acoustic enhancement material into the resonant cavity of the speaker module;

[0158] The acoustic enhancement material includes a plurality of zeolite particles, each zeolite particle including silica and aluminum components, wherein a silica to aluminum mass ratio is at least 200.

[0159] The embodiment of the present application also provides a specific implementation of an electronic device that can implement all steps in the method for reducing the power consumption of the speaker module in the above embodiment, see Figure 20 , electronic equipment specifically includes the following:

[0160] Processor 1201, memory 1202, communications interface 1203, and bus 1204;

[0161] The processor 1201 , the memory 1202 , and the communication interface 1203 communicate with each other via the bus 1204 ; the communication interface 1203 is used to implement information transmission between server-side devices, sensors, client devices, and other related devices.

[0162] The processor 1201 is configured to call a computer program stored in the memory 1202. When the processor executes the computer program, all steps of the method for reducing power consumption of the speaker module in the above embodiment are implemented. For example, when the processor executes the computer program, the following steps are implemented:

[0163] Step 100: Receive sound characterization parameters of a speaker module;

[0164] Step 200: determining an initial output voltage of the speaker module according to the sound characterization parameter and the mapping relationship library;

[0165] Step 300: reducing the power consumption of the speaker module according to the initial output voltage.

[0166] Embodiments of the present application also provide a computer-readable storage medium capable of implementing all steps of the method for reducing speaker module power consumption in the above-described embodiment. The computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the computer program implements all steps of the method for reducing speaker module power consumption in the above-described embodiment. For example, when the processor executes the computer program, the following steps are implemented:

[0167] Step 100: Receive sound characterization parameters of a speaker module;

[0168] Step 200: determining an initial output voltage of the speaker module according to the sound characterization parameter and the mapping relationship library;

[0169] Step 300: reducing the power consumption of the speaker module according to the initial output voltage.

[0170] The various embodiments in this specification are described in a progressive manner. Similar portions between the various embodiments can be referenced to each other. Each embodiment focuses on the differences between the other embodiments. In particular, the hardware + program embodiments are generally similar to the method embodiments, so their description is relatively simple. For relevant portions, refer to the description of the method embodiments.

[0171] The foregoing description of this specification describes specific embodiments. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0172] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0173] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0174] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0175] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0176] Specific embodiments are used in the present invention to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A method for reducing power consumption of a speaker module, characterized in that: include: receiving sound characterization parameters of the speaker module; Determining an initial output voltage of the speaker module according to the sound characterization parameters and the mapping relationship library; reducing the power consumption of the speaker module according to the initial output voltage; The sound characterization parameters include: frequency, amplitude, temperature and resistance; the method for generating the mapping relationship library includes: In different sound emission scenarios, determining the corresponding initial output voltage according to the sound emission characteristic parameters of the speaker module, so as to generate a plurality of mapping relationships between frequency, amplitude, temperature, and resistance and the initial output voltage; generating the mapping relationship library according to a plurality of mapping relationships; The determining of the initial output voltage corresponding to the speaker module according to the sound characterization parameter thereof includes: Extract the sound feature information of the speaker module in different sound scenarios; Determine the initial output voltage based on the simulated geometric model of the speaker module, sound characteristic information, frequency, amplitude, temperature, and resistance; The method for reducing the power consumption of the speaker module further includes: Acoustic enhancement materials are added to the resonant cavity of the speaker module; The acoustic enhancement material includes a plurality of zeolite particles, each zeolite particle including silica and aluminum components, wherein a silica to aluminum mass ratio is at least 200.

2. The method for reducing power consumption of a speaker module according to claim 1, wherein: Reducing the power consumption of the speaker module according to the initial output voltage includes: Determine the actual output voltage of the speaker module based on the initial output voltage; Reduce the speaker power consumption according to the actual output voltage.

3. The method for reducing power consumption of a speaker module according to claim 1, wherein: Determining the actual output voltage of the speaker module based on the initial output voltage includes: The speaker is bass-enhanced and dynamically filtered based on the initial output voltage to determine the actual output voltage.

4. A device for reducing power consumption of a speaker module, characterized in that: include: A characterization parameter receiving module, used to receive the sound characterization parameters of the speaker module; An initial output voltage determination module, configured to determine an initial output voltage of the speaker module based on the sound characterization parameters and the mapping relationship library; a speaker power consumption reduction module, configured to reduce the power consumption of the speaker module according to the initial output voltage; The device for reducing power consumption of the speaker module further includes: a mapping relationship library generation module for generating a mapping relationship library, wherein the sound characterization parameters include: frequency, amplitude, temperature and resistance; the mapping relationship library generation module includes: A mapping relationship generating unit, configured to determine the corresponding initial output voltage according to the sound characterization parameters of the speaker module in different sound emission scenarios, so as to generate a plurality of mapping relationships between frequency, amplitude, temperature, and resistance and the initial output voltage; A mapping relationship library generating unit, configured to generate the mapping relationship library according to a plurality of mapping relationships; The mapping relationship generation unit includes: A feature information extraction unit is used to extract sound feature information of the speaker module in different sound emission scenarios; an initial output voltage determining unit, configured to determine the initial output voltage based on a simulated geometric model, sound characteristic information, frequency, amplitude, temperature, and resistance of the speaker module; The device for reducing power consumption of the speaker module further comprises: An acoustic enhancement material adding unit, used for adding acoustic enhancement material into the resonant cavity of the speaker module; The acoustic enhancement material includes a plurality of zeolite particles, each zeolite particle including silica and aluminum components, wherein a silica to aluminum mass ratio is at least 200.

5. The device for reducing power consumption of a speaker module according to claim 4, wherein: The speaker power reduction module includes: an actual output voltage determining unit, configured to determine the actual output voltage of the speaker module according to the initial output voltage; a speaker power consumption reduction unit, configured to reduce the speaker power consumption according to the actual output voltage; The actual output voltage determination unit is specifically configured to perform bass enhancement and dynamic filtering on the speaker according to the initial output voltage to determine the actual output voltage.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the steps of the method for reducing the power consumption of the speaker module according to any one of claims 1 to 3 are implemented.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for reducing the power consumption of a speaker module according to any one of claims 1 to 3 are implemented.

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