Terminal device, sound control method, sound control device and storage medium thereof

Abstract

The present invention discloses a terminal device and its sound control method, sound control device and storage medium, which can suppress the influence of electric current sound and improve user experience. The sound control method of the terminal device includes: controlling the sound component to switch between the speaker sound mode and the earpiece sound mode; when the sound component is in the earpiece sound mode, the audio power amplifier generates a first driving current, and the diaphragm of the sound component is driven to be in a biased state by the first driving current, and vibrates and sounds in the biased state, and the electro-acoustic conversion efficiency of the sound component is less than the electro-acoustic conversion efficiency when the sound component is in the speaker sound mode. The terminal device and its sound control method, sound control device and storage medium can suppress the influence of electric current sound and improve user experience.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic equipment, and in particular to a terminal device and a sound control method, a sound control device and a storage medium thereof. Background Art

[0002] At present, mobile phones, tablet computers and other terminal devices have become indispensable technological products in people's life, study and entertainment. Terminal devices are usually equipped with sound components, such as converting electrical signals into sound through sound components, so as to have a sound function.

[0003] In the related art, the internal space utilization rate of the terminal device is improved by using the sound-generating component with both the speaker sound-generating function and the earpiece sound-generating function. Although such a sound-generating component has two sound-generating functions, it is easily affected by the current sound in the earpiece sound-generating mode, which is not conducive to improving the user experience. Summary of the invention

[0004] The present disclosure provides a terminal device and a sound control method, a sound control device and a storage medium thereof, which can suppress the influence of electric current sound and improve user experience.

[0005] The technical solution is as follows:

[0006] According to a first aspect of an embodiment of the present disclosure, a method for controlling sound emission of a terminal device is provided, including:

[0007] Controlling the sound-generating component to switch between a speaker sound-generating mode and a receiver sound-generating mode;

[0008] When the sound-emitting component is in the earpiece sound-emitting mode, the audio power amplifier generates a first driving current, and the diaphragm of the sound-emitting component is driven by the first driving current to be in a biased state, and vibrates and produces sound in the biased state, and the electro-acoustic conversion efficiency of the sound-emitting component is lower than the electro-acoustic conversion efficiency when the sound-emitting component is in the speaker sound-emitting mode.

[0009] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0010] When the above-mentioned sound control method is applied to a terminal device, the sound component can be controlled to switch between the speaker sound mode and the earpiece sound mode; and when the sound component is in the earpiece sound mode, the audio amplifier generates a first driving current, and the diaphragm of the sound component is driven to be in a biased state by the first driving current, so that the diaphragm is not easily affected by the external current, so that the electroacoustic conversion efficiency of the sound component is lower than the electroacoustic conversion efficiency when the sound component is in the speaker sound mode, and at the same time, the diaphragm can vibrate and make sound in a biased state through the first driving current to achieve earpiece sound. In this way, the sound control method of the terminal device can suppress the influence of current sound and improve user experience without increasing the difficulty of the structural design of the sound component; it makes the sound structure of the terminal device simple, which is conducive to improving the internal space utilization of the terminal device.

[0011] The technical solution of the present disclosure is further described below:

[0012] In one of the embodiments, when the diaphragm is in a biased state, the vibration stiffness coefficient of the sound-generating component increases, and the electromagnetic driving force coefficient of the sound-generating component decreases, so that the electroacoustic conversion efficiency of the sound-generating component decreases.

[0013] In one embodiment, the sound-emitting component includes a magnetic driver, which is spaced apart from the diaphragm. When the sound-emitting component is in a non-use state or in a speaker sounding mode, the diaphragm and the magnetic driver are in a balanced state; when the diaphragm is in a balanced state, the diaphragm is set away from or close to the magnetic driver so that the diaphragm enters a biased state.

[0014] In one of the embodiments, when the sound-emitting component is in the earpiece sound-emitting mode, the sound-emitting control method further includes: driving the diaphragm from a balanced state to be away from or close to the magnetic driving member by a first driving current, so that the diaphragm is in a biased state.

[0015] In one embodiment, the first driving current is A1, the signal current used to drive the diaphragm to vibrate and produce sound in the earpiece sound mode is A2, and the bias current used to drive the diaphragm to move from a balanced state to a biased state is A3; wherein A1=A2+A3.

[0016] In one embodiment, when the diaphragm is in a balanced state, the distance between the diaphragm and the magnetic driver is L1, and when the diaphragm is in a biased state, the distance between the diaphragm and the magnetic driver is L2; ​​wherein the offset distance between L2 and L1 is determined based on noise interference information and a safe amplitude distance of the diaphragm.

[0017] In one of the embodiments, the sound control method further includes: when the sound-emitting component is in a speaker sound-emitting mode, the audio power amplifier generates a second driving current, and the diaphragm is driven into a balanced state by the second driving current, and vibrates and produces sound in the balanced state.

[0018] According to a second aspect of an embodiment of the present disclosure, a sound control device of a terminal device is provided, comprising a switching module and an earpiece driving module; the switching module is used to control the sound component to switch between a speaker sound mode and an earpiece sound mode; the earpiece driving module is used to enable an audio power amplifier to generate a first driving current, and drive the diaphragm of the sound component to be in a biased state through the first driving current, and vibrate and make sound in the biased state, and the electro-acoustic conversion efficiency of the sound component is less than the electro-acoustic conversion efficiency when the sound component is in the speaker sound mode.

[0019] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0020] When the above-mentioned sound control device is applied to a terminal device, the switching module can be used to control the sound component to switch between the speaker sound mode and the earpiece sound mode; the earpiece drive module enables the audio amplifier to generate a first drive current, and the diaphragm of the sound component is driven to be in a biased state by the first drive current, so that the diaphragm is not easily affected by the external current, and the electroacoustic conversion efficiency of the sound component is lower than the electroacoustic conversion efficiency when the sound component is in the speaker sound mode. At the same time, the diaphragm can vibrate and make sound in the biased state through the first drive current to achieve earpiece sound. In this way, the use of the sound control device can suppress the influence of current sound and improve user experience without increasing the difficulty of the structural design of the sound component; the sound structure of the terminal device is simple, which is conducive to improving the internal space utilization of the terminal device.

[0021] The technical solution of the present disclosure is further described below:

[0022] In one embodiment, the sound control device further includes a speaker driving module, which is used to enable the audio power amplifier to generate a second driving current and vibrate and generate sound in a balanced state.

[0023] According to a third aspect of an embodiment of the present disclosure, there is provided a storage medium which can be read by a computer, and on which a computer program is stored. When the computer program is executed by a processor, a sound control method as in any of the above embodiments is implemented.

[0024] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0025] The above-mentioned storage medium stores the sound control method in any of the above-mentioned embodiments. When applied to a terminal device, it can suppress the influence of current sound and improve user experience without increasing the structural design difficulty of the sound component; it makes the sound structure of the terminal device simple, which is conducive to improving the internal space utilization of the terminal device.

[0026] According to the fourth aspect of the embodiments of the present disclosure, there is provided a terminal device, comprising a control component and a sound-emitting device, wherein the control component is communicatively connected with the sound-emitting device, the control component comprises a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, a sound control method as in any of the above embodiments is implemented.

[0027] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0028] When the terminal device is used, the computer program stored in the memory is used, and the processor is used to execute the computer program to implement the sound control method as in any of the above embodiments, which can control the sound component to switch between the speaker sound mode and the earpiece sound mode; and when the sound component is in the earpiece sound mode, the audio amplifier generates a first driving current, and the diaphragm of the sound component is driven to be in a biased state by the first driving current, so that the diaphragm is not easily affected by the external current, so that the electroacoustic conversion efficiency of the sound component is less than the electroacoustic conversion efficiency when the sound component is in the speaker sound mode, and at the same time, the diaphragm can vibrate and sound in the biased state through the first driving current to achieve earpiece sound. In this way, the terminal device can suppress the influence of current sound without increasing the difficulty of the structural design of the sound component, and improve the user experience; the sound structure of the terminal device is simple, and the internal space utilization rate of the terminal device can be improved, which is conducive to the miniaturization development of the terminal device.

[0029] The technical solution of the present disclosure is further described below:

[0030] In one embodiment, the sound-generating device includes a sound-generating component and an audio power amplifier, wherein the sound-generating component has a speaker sound-generating mode and an earpiece sound-generating mode; the audio power amplifier is communicatively connected with the control component, and is used to drive the sound-generating component to switch between the speaker sound-generating mode and the earpiece sound-generating mode. When the sound-generating component is in the earpiece sound-generating mode, the audio power amplifier can generate a first driving current.

[0031] In one embodiment, the sound-emitting component includes a magnetic driver, which is spaced apart from the diaphragm. When the sound-emitting component is in a non-use state or in a speaker sounding mode, the diaphragm and the magnetic driver are in a balanced state; when the diaphragm is in a biased state relative to the diaphragm being in a balanced state, the diaphragm is set away from or close to the magnetic driver; the magnetic driver includes a first magnet and a magnetic ring that is sleeved with the first magnet, and a first gap is formed between the magnetic ring and the first magnet; the sound-emitting component also includes a folding ring and a voice coil fixedly connected to the diaphragm, the voice coil is movably set in the first gap, and the diaphragm is fixedly connected to the magnetic ring through the folding ring.

[0032] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] BRIEF DESCRIPTION OF THE DRAWINGS The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and the description thereof are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure.

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 Schematic diagram of a flow chart of a sound control method shown in an embodiment.

[0036] Figure 2 FIG. 4 is a schematic diagram of a sound control device shown in an embodiment.

[0037] Figure 3 It is a schematic diagram of the structure of a terminal device shown in an embodiment.

[0038] Figure 4 for Figure 3 The schematic diagram of the connection between the control component and the sound-generating device is shown.

[0039] Figure 5 for Figure 4 Schematic diagram of the structure of the sound-generating component shown (the diaphragm is in a balanced state).

[0040] Figure 6 for Figure 5 A schematic diagram of the diaphragm of the sound-generating component shown is in a biased state.

[0041] Figure 7 Schematic diagram of the internal hardware structure of a terminal device in one embodiment.

[0042] Description of reference numerals:

[0043] Description of reference numerals:

[0044] 10. Terminal device; 11. Processor; 12. Memory; 13. Power supply component; 14. Multimedia component; 15. Audio component; 16. Input / output interface; 17. Sensor component; 18. Communication component; 101. Switching module; 102. Earpiece drive module; 103. Speaker drive module; 100. Control component; 200. Sound-generating device; 210. Sound-generating component; 211. Diaphragm; 212. Magnetic drive component; 201. First magnet; 202. Magnetic ring; 213. Folding ring; 214. Voice coil; 220. Audio amplifier. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present disclosure more clear, the present disclosure is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the present disclosure and do not limit the protection scope of the present disclosure.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used in the specification of the present disclosure herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0047] At present, mobile phones, tablet computers and other terminal devices have become indispensable technology products in people's life, study and entertainment. Terminal devices usually convert electrical signals into sound through sound components to have sound-generating functions. However, there are many types and brands of terminal devices with sound-generating functions, which makes it possible for consumers to choose from a lot of terminal devices. How to win the favor of consumers and improve product competitiveness has become an issue that terminal device manufacturers are paying more and more attention to.

[0048] For the sake of aesthetics and portability, terminal devices also need to adapt to the needs of miniaturization. In related technologies, the internal space utilization of terminal devices is improved by using sound-generating components that have both speaker and receiver functions. Although this type of sound-generating component has two sound-generating functions, it is easily affected by current sound in the receiver sound-generating mode, which is not conducive to improving user experience. The traditional method for suppressing the influence of current sound requires the addition of more electronic devices (such as resistors and micro-switches), and the structural design is complex, which is not conducive to improving the internal space utilization of terminal devices.

[0049] Based on this, the present disclosure provides a sound control method for a terminal device, which can suppress the influence of current sound without increasing the structural design difficulty of the sound component, improve user experience, and improve the internal space utilization of the terminal device.

[0050] The embodiment of the present disclosure provides a method for controlling the sound emission of a terminal device, which can be used to control the sound emission of a sound emission component. Figure 1 As shown, Figure 1 The figure is a flow chart of a method for controlling sound emission according to an embodiment. The method may include the following steps:

[0051] In S101, the sound-emitting component is controlled to switch between a speaker sound-emitting mode and an earpiece sound-emitting mode.

[0052] In the disclosed embodiment, the sound-generating component has a speaker sound-generating function and a receiver sound-generating function, including a speaker and a receiver two-in-one speaker. In addition, the speaker sound-generating mode can be understood as the sound is emitted outward, the volume is large, and the electroacoustic conversion efficiency is high, that is, the impedance is small and the sensitivity is high; while the receiver sound-generating mode can be understood as the sound has no leakage, the volume is small, and the electroacoustic conversion efficiency is low. At present, the electroacoustic conversion efficiency of the speaker sound is getting higher and higher, resulting in the sound-generating component with the speaker sound-generating function and the receiver sound-generating function being easily interfered by the outside world in the receiver sound-generating mode. For example, if the original 32ohm sound-generating component is changed to 6ohm, the large current fluctuation inside the terminal device will produce a magnetic field change, causing the voice coil of the sound-generating component to generate an induced electromotive force. When the impedance of the sound-generating component becomes smaller, the induced current will increase accordingly, and the induced current will drive the coil sound interference to increase, resulting in the sound-generating component being easy to generate noise when it sounds in the receiver mode.

[0053] The handset mode can also be understood as the receiver mode.

[0054] In one example, the sound-emitting component switches between a speaker sound-emitting mode and an earpiece sound-emitting mode through an audio power amplifier.

[0055] In one example, the sound-generating component is a piezoelectric speaker. In this way, the advantages of the piezoelectric speaker, such as simple structure, small size, and low cost, can be fully utilized, which is conducive to reducing the cost of the terminal device and meeting the miniaturization development of the terminal device. Furthermore, the terminal device disclosed in the present invention has the advantages of small size, light weight, and low power consumption while having the speaker sound-generating function and the earpiece sound-generating function, which is conducive to gaining the favor of consumers and further improving the competitiveness of the product.

[0056] In S102, when the sound-emitting component is in the earpiece sound-emitting mode, the audio power amplifier generates a first driving current, and drives the diaphragm of the sound-emitting component to be in a biased state through the first driving current, and vibrates and produces sound in the biased state, and the electro-acoustic conversion efficiency of the sound-emitting component is lower than the electro-acoustic conversion efficiency when the sound-emitting component is in the speaker sound-emitting mode.

[0057] In the disclosed embodiment, the diaphragm of the sound-generating component is in a biased state, that is, the diaphragm is in a taut state, so that the electroacoustic conversion efficiency of the sound-generating component is lower than that when the sound-generating component is in a speaker sounding mode, and the sensitivity is reduced. When vibrating and emitting sound in the biased state, even if the large current fluctuation inside the terminal device will cause a change in the magnetic field, the voice coil of the sound-generating component will generate an induced electromotive force. When the impedance of the sound-generating component is reduced, the induced current will increase accordingly, and when the sound-generating component emits sound in the handset mode, its sensitivity is reduced, resulting in the diaphragm being less susceptible to interference and generating noise.

[0058] In addition, the first driving current A1 is equal to the sum of the signal current A2 for driving the diaphragm to vibrate and the bias current A3 for driving the diaphragm to bias, that is, A1=A2+A3.

[0059] In one example, the diaphragm is biased upward or downward so that the diaphragm is in a taut state.

[0060] In one example, the audio power amplifier generally includes an audio input terminal, an audio output terminal, a power amplifier circuit, and an impedance adjustment circuit. The audio input terminal is used to connect to an external audio output device, the audio input terminal is also connected to the input terminal of the power amplifier circuit, the output terminal of the power amplifier circuit is connected to the audio output terminal, and the audio output terminal is used to connect to an external sound-generating component.

[0061] In this way, when the above-mentioned sound control method is applied to the terminal device, the sound component can be controlled to switch between the speaker sound mode and the earpiece sound mode; and when the sound component is in the earpiece sound mode, the audio power amplifier generates a first driving current, and the diaphragm of the sound component is driven to be in a biased state by the first driving current, so that the diaphragm is not easily affected by the external current, so that the electroacoustic conversion efficiency of the sound component is lower than the electroacoustic conversion efficiency when the sound component is in the speaker sound mode, and at the same time, the diaphragm can vibrate and sound in the biased state through the first driving current to realize the earpiece sound. In this way, the sound control method of the terminal device can suppress the influence of the current sound in the earpiece sound mode without increasing the difficulty of the structural design of the sound component, and can improve the user experience; the sound structure of the terminal device is simple, which is conducive to improving the internal space utilization of the terminal device.

[0062] In addition, it can be understood that compared with the traditional sound-emitting component, the sound-emitting component of the present disclosure can compensate for the signal current of the sound-emitting component in the earpiece sound-emitting mode when the diaphragm is in a biased state, and the supplement coefficient can be selected according to the actual situation. For example, it can be increased by 1% to 30%. Specifically, it can be 1%, 3%, 5%, 10%, 15%, 20%, 23%, 25%, 30%, etc., so that the volume of the sound-emitting component in the earpiece sound-emitting mode can meet the requirements.

[0063] In one example, under the same sound-generating component, the driving current of the conventional sound-generating component in the earpiece sound-generating mode is A, and when the sound-generating control method disclosed in the present invention is used for sound generation, the first driving current A1 is equal to AX1.1+bias current A3. That is, the signal current A2 for driving the diaphragm to vibrate is equal to AX1.1.

[0064] In some embodiments, when the diaphragm is in a biased state, the vibration stiffness coefficient of the sound-emitting component increases, and the electromagnetic driving force coefficient of the sound-emitting component decreases, so that the electroacoustic conversion efficiency of the sound-emitting component decreases. In this way, by utilizing the nonlinear characteristics of speaker vibration, when the sound-emitting component is in the earpiece sounding mode, the diaphragm is in a biased state by utilizing the first driving current, the vibration stiffness coefficient of the sound-emitting component increases, and the electromagnetic driving force coefficient of the sound-emitting component decreases, so that the electroacoustic conversion efficiency of the sound-emitting component decreases, thereby reducing the sensitivity of the earpiece, reducing the influence of interference signals on the sound of the earpiece, and not affecting the sensitivity and loudness of the speaker sounding mode.

[0065] Reference Figure 5 as well as Figure 6 As shown, in some embodiments, the sound-generating component 210 includes a magnetic driver 212, and the magnetic driver 212 is spaced apart from the diaphragm 211. When the sound-generating component 210 is not in use or in a speaker sounding mode, the diaphragm 211 and the magnetic driver 212 are in a balanced state; when the diaphragm 211 is in a balanced state, the diaphragm 211 is arranged away from or close to the magnetic driver 212, so that the diaphragm 211 enters a biased state. It should be noted that when the sound-generating component 210 is not in use, that is, when the sound-generating component 210 is not powered on, the diaphragm 211 will be suspended and balanced above the magnetic driver 212, and the diaphragm 211 and the magnetic driver 212 are in a balanced state. At this time, the diaphragm 211 has high sensitivity, so that the electroacoustic conversion efficiency of the sound-generating component 210 is high. The sound-generating component 210 of the present disclosure performs speaker sounding in a balanced state, and its sensitivity and loudness are high. When the sound-generating component is powered on, it is in use mode. In the use state, the speaker sounding mode or the earpiece sounding mode can be selected as needed.

[0066] The bias state can be understood as being in an unbalanced state. Relative to the balanced state, the diaphragm will be set away from or close to the magnetic driver, and the sensitivity of the diaphragm will be reduced.

[0067] In combination with the above embodiments, in some embodiments, when the sound-emitting component is in the receiver sound-emitting mode, the sound-emitting control method further includes: driving the diaphragm from the equilibrium state away from or close to the magnetic driver through the first driving current, so that the diaphragm is in a biased state. That is, the first driving current has a biasing effect, so that the diaphragm is away from or close to the magnetic driver, so that the diaphragm is in a biased state, thereby reducing the electroacoustic conversion efficiency of the sound-emitting component and improving its anti-interference ability, so that the sound-emitting component can clearly emit sound in the receiver sound-emitting mode.

[0068] In combination with the above embodiments, in some embodiments, the first driving current is A1, the signal current used to drive the diaphragm to vibrate and produce sound in the earpiece sounding mode is A2, and the bias current used to drive the diaphragm to move from the equilibrium state to the biased state is A3; wherein, A1=A2+A3. In this way, the first driving current is formed by superposition of the signal current and the bias current, which facilitates the flexible and regular adjustment of the magnitude of the first driving current according to the actual situation of the sounding component, so that the sounding control method can control the sounding of different types of sounding components, and in the earpiece sounding mode, it can suppress noise and produce clear sound.

[0069] In some embodiments, when the diaphragm is in a balanced state, the distance between the diaphragm and the magnetic driver is L1, and when the diaphragm is in a biased state, the distance between the diaphragm and the magnetic driver is L2; ​​wherein, the offset distance between L2 and L1 is determined according to the noise interference information and the safe amplitude distance of the diaphragm. In this way, the offset distance between L2 and L1 is determined according to the noise interference information and the safe amplitude distance of the diaphragm, which facilitates the flexible and regular adjustment of the offset distance of the diaphragm according to the actual situation of the sound-emitting component, so that the sound control method can control the sound of different types of sound-emitting components, and in the earpiece sound-emitting mode, it can suppress noise and clearly emit sound.

[0070] Based on any of the above embodiments, Figure 1 As shown, in some embodiments, the sound control method further includes step S103: when the sound-generating component is in the speaker sound-generating mode, the audio power amplifier generates a second driving current, and the diaphragm is driven to be in a balanced state by the second driving current, and vibrates and sounds in the balanced state. In this way, the diaphragm is driven to be in a balanced state by the second driving current, and vibrates and sounds in the balanced state, ensuring that the sensitivity and loudness of the speaker sound-generating mode are not affected.

[0071] Optionally, in some embodiments, the audio power amplifier is further integrated with a processing module, which can sense the state of the sound-generating component and perform fine-tuning processing. For example, the output drive current can be dynamically adjusted according to the sound-generating component.

[0072] Correspondingly, the present disclosure also provides a storage medium that can be read by a computer, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the sound control method in any of the above embodiments is implemented.

[0073] The above-mentioned storage medium stores the sound control method in any of the above-mentioned embodiments. When applied to a terminal device, it can also suppress the influence of the current sound in the earpiece sound mode without increasing the difficulty of the structural design of the sound component, and will not affect the sensitivity and loudness of the speaker sound mode, thereby improving the user experience; making the sound structure of the terminal device simple, which is conducive to improving the internal space utilization of the terminal device.

[0074] like Figure 2 As shown, in some embodiments, the present disclosure also provides a sound control device of a terminal device, including a switching module 101 and an earpiece driving module 102; the switching module 101 is used to control the sound component 210 to switch between a speaker sound mode and an earpiece sound mode; the earpiece driving module 102 is used to enable the audio power amplifier 220 to generate a first driving current, and the diaphragm 211 of the sound component 210 is driven by the first driving current to be in a biased state, and vibrates and sounds in the biased state, and the electroacoustic conversion efficiency of the sound component 210 is less than the electroacoustic conversion efficiency when the sound component 210 is in the speaker sound mode.

[0075] When the above-mentioned sound control device is applied to a terminal device, the switching module 101 can be used to control the sound component 210 to switch between the speaker sound mode and the earpiece sound mode; the earpiece drive module 102 enables the audio power amplifier 220 to generate a first driving current, and the diaphragm 211 of the sound component 210 is driven to be in a biased state by the first driving current, so that the diaphragm 211 is not easily affected by the external current, so that the electroacoustic conversion efficiency of the sound component 210 is less than the electroacoustic conversion efficiency when the sound component 210 is in the speaker sound mode, and at the same time, the diaphragm 211 can vibrate and make sound in the biased state through the first driving current to achieve earpiece sound. In this way, the use of the sound control device can suppress the influence of the current sound in the earpiece sound mode without increasing the difficulty of the structural design of the sound component 210, and does not affect the sensitivity and loudness of the speaker sound mode, which can improve the user experience; the sound structure of the terminal device is simple, which is conducive to improving the internal space utilization of the terminal device.

[0076] It should be noted that the sound component 210, the audio power amplifier 220, etc. in this embodiment can adopt the structure involved in the sound control method in any of the above embodiments.

[0077] In some embodiments, the sound control device further includes a speaker driving module 103, which is used to make the audio power amplifier 220 generate a second driving current and vibrate and sound in a balanced state. In this way, the diaphragm 211 is driven to be in a balanced state by the second driving current, and vibrates and sounds in a balanced state, ensuring that the sensitivity and loudness of the speaker sound mode are not affected.

[0078] It should be noted that the first driving current and the second driving current can be implemented by using the current magnitudes involved in the sound control method in any of the above embodiments.

[0079] like Figures 3 to 6As shown, in an embodiment of the present disclosure, a terminal device is provided, including a control component 100 and a sound-emitting device 200, the control component 100 is communicatively connected with the sound-emitting device 200, the control component 100 includes a memory 12 and a processor 11, the memory 12 stores a computer program, and when the processor 11 executes the computer program, it implements the sound control method as in any of the above embodiments.

[0080] When the terminal device is used, the computer program stored in the memory 12 is used, and the processor 11 is used to execute the computer program to implement the sound control method in any of the above embodiments, so that the sound component 210 can be controlled to switch between the speaker sound mode and the earpiece sound mode; and when the sound component 210 is in the earpiece sound mode, the audio power amplifier 220 generates a first driving current, and the diaphragm 211 of the sound component 210 is driven by the first driving current to be in a biased state, so that the diaphragm 211 is not easily affected by the external current, so that the electroacoustic conversion efficiency of the sound component 210 is less than the electroacoustic conversion efficiency when the sound component 210 is in the speaker sound mode, and at the same time, the diaphragm 211 can vibrate and sound in the biased state through the first driving current to achieve earpiece sound. In this way, the terminal device can suppress the influence of the current sound in the earpiece sound mode without increasing the difficulty of the structural design of the sound component 210, and does not affect the sensitivity and loudness of the speaker sound mode, which can improve the user experience; the sound structure of the terminal device is simple, and the internal space utilization rate of the terminal device can be improved, which is conducive to the miniaturization development of the terminal device.

[0081] It should be noted that the control component 100 generally controls the overall operation of the terminal device, such as shutdown, startup, sound playback and switching, etc. The control component 100 includes control devices such as a programmable controller, a motion control card, and a microcomputer.

[0082] The terminal device includes a mobile phone, a tablet computer or other smart devices with pronunciation function.

[0083] In some embodiments, the control component 100 includes a control mainboard, so that the operation of the sound generating device 200 can be controlled by using the control mainboard of the terminal device.

[0084] In some embodiments, the control component 100 may include one or more processors 11 to execute instructions to complete all or part of the steps of the above method. The processor may be a microcontroller unit (MCU), a central processing unit (CPU) or a digital signal processor (DSP), etc.

[0085] In addition, the control component 100 also includes one or more modules to facilitate the interaction between the control component 100 and other components. For example, the control component 100 may include a multimedia module to facilitate the interaction between the user and the control component 100, such as a touch display screen.

[0086] In addition, the communication control means between the control component 100 and each actuator (such as the sound-generating device 200) and the feedback element (sensor, detection component, etc.) belongs to the traditional technology and will not be described in detail here.

[0087] The "communication connection" can be realized by wired communication technology or wireless communication technology, which is a traditional technology and will not be described in detail here. In addition, the communication connection between the above devices can be a direct communication connection or an indirect communication connection.

[0088] It should be noted that the memory 12 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk, etc.

[0089] like Figure 4 As shown, in some embodiments, the sound-emitting device 200 includes a sound-emitting component 210 and an audio power amplifier 220. The sound-emitting component 210 has a speaker sound-emitting mode and an earpiece sound-emitting mode. The audio power amplifier 220 is connected to the control component 100 for communication, and is used to drive the sound-emitting component 210 to switch between the speaker sound-emitting mode and the earpiece sound-emitting mode. When the sound-emitting component 210 is in the earpiece sound-emitting mode, the audio power amplifier 220 can generate a first driving current. In this way, the control component 100 controls the audio power amplifier 220 to switch the sound-emitting component 210 between the speaker sound-emitting mode and the earpiece sound-emitting mode, and can generate a first driving current in the earpiece sound-emitting mode, so that the diaphragm 211 is in a biased state, and vibrates and sounds in the biased state.

[0090] Furthermore, if Figure 5 as well as Figure 6As shown, in some embodiments, the sound-emitting component 210 includes a magnetic driver 212, and the magnetic driver 212 is spaced apart from the diaphragm 211. When the sound-emitting component 210 is in a non-use state or a speaker sounding mode, the diaphragm 211 and the magnetic driver 212 are in a balanced state; relative to the diaphragm 211 being in a balanced state, when the diaphragm 211 is in a biased state, the diaphragm 211 is arranged away from or close to the magnetic driver 212; the magnetic driver 212 includes a first magnet 201 and a magnetic ring 202 that is sleeved with the first magnet 201, and the magnetic ring 202 and the first magnet 201 are spaced apart to form a first gap; the sound-emitting component also includes a folding ring 213 and a voice coil 214 fixedly connected to the diaphragm 211, the voice coil 214 is movably arranged in the first gap, and the diaphragm 211 is fixedly connected to the magnetic ring 202 through the folding ring 213. In this way, the first driving current or the second driving current can cause the voice coil 214, the magnetic ring 202 and the first magnet 201 to vibrate up and down, so as to drive the diaphragm 211 to vibrate, and realize the sound of the sound-generating component 210. Under the first driving current, the diaphragm 211 is in a biased state, causing the folding ring 213 to be stretched or compressed, so that the diaphragm 211 is in a taut state, resulting in a decrease in the sensitivity of the diaphragm 211 and a decrease in the electroacoustic conversion efficiency of the sound-generating component 210.

[0091] Reference Figure 7 As shown, in some embodiments, the terminal device 10 may also include one or more of the following components: a processor 11, a memory 12, a power component 13, a multimedia component 14, an audio component 15, an input / output interface 16, a sensor component 17, and a communication component 18.

[0092] The processor 11 generally controls the overall operation of the terminal device 10, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processor 11 may include one or more processors to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processor 11 may include one or more modules to facilitate the interaction between the processor 11 and other components. For example, the processor 11 may include a multimedia module to facilitate the interaction between the multimedia component 14 and the processor 11, such as a control panel.

[0093] The memory 12 is configured to store various types of data to support operations on the terminal device 10. Examples of such data include instructions for any application or method operating on the terminal device 10, contact data, phone book data, messages, pictures, videos, etc. The memory 12 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0094] The control component 100 includes a processor 11 and a memory 12 .

[0095] The power supply component 13 provides power to various components of the terminal device 10. The power supply component 13 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the terminal device 10.

[0096] The multimedia component 14 includes a display module of the present disclosure, which is convenient for human-computer interaction. If the display module includes a touch panel, the display module can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 14 includes a front camera and / or a rear camera. When the terminal device 10 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0097] The audio component 15 is configured to output and / or input audio signals. For example, the audio component 15 includes a microphone (MIC), and when the terminal device 10 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 12 or sent via the communication component 18. In some embodiments, the audio component 15 also includes the above-mentioned sound-generating component 210 for outputting an audio signal.

[0098] The input / output interface 16 provides an interface between the processor 11 and the peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0099] The sensor assembly 17 includes one or more sensors for providing various aspects of status assessment for the terminal device 10. For example, the sensor assembly 17 can detect the open / closed state of the terminal device 10, the relative positioning of components, such as the display and keypad of the terminal device 10, and the sensor assembly 17 can also detect the position change of the terminal device 10 or a component of the terminal device 10, the presence or absence of user contact with the terminal device 10, the orientation or acceleration / deceleration of the terminal device 10, and the temperature change of the terminal device 10. The sensor assembly 17 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 17 may also include a photosensitive element 150, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 17 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0100] The communication component 18 is configured to facilitate wired or wireless communication between the terminal device 10 and other devices. The terminal device 10 can access a wireless network based on a communication standard, such as Wi-Fi, 2G, 3G, 4G or 6G, etc., or a combination thereof. In an exemplary embodiment, the communication component 18 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 18 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (I rDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0101] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The above embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the inventive concept of the present disclosure, and these all belong to the protection scope of the present disclosure.

Claims

1. A method for controlling the sound of a terminal device, characterized in that: The terminal device includes a sound-generating component, and the sound-generating component has a speaker sound-generating mode and an earpiece sound-generating mode; the sound-generating component includes a magnetic driver, and the magnetic driver is spaced apart from a diaphragm, and when the sound-generating component is in a non-use state or in the speaker sound-generating mode, the diaphragm and the magnetic driver are in a balanced state; when the diaphragm is in the balanced state, the diaphragm is arranged away from or close to the magnetic driver, so that the diaphragm enters a biased state; The sound control method comprises: Controlling the sound-generating component to switch between the speaker sound-generating mode and the earpiece sound-generating mode; When the sound-emitting component is in the earpiece sound-emitting mode, the audio power amplifier generates a first driving current, and the diaphragm of the sound-emitting component is driven by the first driving current to be in the biased state, and vibrates and produces sound in the biased state, and the electro-acoustic conversion efficiency of the sound-emitting component is lower than the electro-acoustic conversion efficiency when the sound-emitting component is in the speaker sound-emitting mode.

2. The sound control method according to claim 1, characterized in that: When the diaphragm is in a biased state, the vibration stiffness coefficient of the sound-generating component increases, and the electromagnetic driving force coefficient of the sound-generating component decreases, so that the electroacoustic conversion efficiency of the sound-generating component decreases.

3. The method for controlling sound emission according to claim 1, characterized in that: When the sound emitting component is in the earpiece sound emitting mode, the sound emitting control method further includes: The diaphragm is driven by the first driving current to be disposed away from or close to the magnetic driving member from the equilibrium state, so that the diaphragm is in the biased state.

4. The method for controlling sound emission according to claim 3, characterized in that: The first driving current is A1, the signal current used to drive the diaphragm to vibrate and produce sound in the earpiece sounding mode is A2, and the bias current used to drive the diaphragm to move from the equilibrium state to the biased state is A3; wherein A1=A2+A3.

5. The method for controlling sound emission according to claim 1, characterized in that: When the diaphragm is in the balanced state, the distance between the diaphragm and the magnetic driver is L1, and when the diaphragm is in the biased state, the distance between the diaphragm and the magnetic driver is L2; ​​wherein the offset distance between L2 and L1 is determined based on noise interference information and the safe amplitude distance of the diaphragm.

6. The method for controlling sound emission according to any one of claims 1 to 5, characterized in that: The sound control method also includes: when the sound component is in the speaker sound mode, the audio power amplifier generates a second driving current, and the diaphragm is driven to be in a balanced state by the second driving current, and vibrates and sounds in the balanced state.

7. A sound control device for a terminal device, characterized in that: The terminal device includes a sound-generating component, and the sound-generating component has a speaker sound-generating mode and an earpiece sound-generating mode; the sound-generating component includes a magnetic driver, and the magnetic driver is spaced apart from a diaphragm, and when the sound-generating component is in a non-use state or in the speaker sound-generating mode, the diaphragm and the magnetic driver are in a balanced state; when the diaphragm is in the balanced state, the diaphragm is arranged away from or close to the magnetic driver, so that the diaphragm enters a biased state; The sound control device comprises: A switching module, used to control the sound-generating component to switch between a speaker sound-generating mode and a receiver sound-generating mode; The earpiece driving module is used to make the audio power amplifier generate a first driving current, and the diaphragm of the sound-emitting component is driven by the first driving current to be in the biased state, and vibrates and sounds in the biased state, and the electro-acoustic conversion efficiency of the sound-emitting component is lower than the electro-acoustic conversion efficiency when the sound-emitting component is in the speaker sounding mode.

8. The sound control device according to claim 7, characterized in that: The sound control device also includes a speaker driving module, which is used to make the audio power amplifier generate a second driving current and vibrate and sound in a balanced state.

9. A storage medium capable of being read by a computer, wherein a computer program is stored on the storage medium, characterized in that: When the computer program is executed by a processor, the sound control method according to any one of claims 1 to 6 is implemented.

10. A terminal device, characterized in that: It includes a control component and a sound-emitting device, the control component is communicatively connected with the sound-emitting device, the sound-emitting device includes a sound-emitting component, the control component includes a memory and a processor, the memory stores a computer program, and the processor implements the sound control method described in any one of claims 1 to 6 when executing the computer program.

11. The terminal device according to claim 10, characterized in that: The sound-generating device further comprises: The audio power amplifier is communicatively connected with the control component and is used to drive the sound-emitting component to switch between the speaker sound-emitting mode and the earpiece sound-emitting mode. When the sound-emitting component is in the earpiece sound-emitting mode, the audio power amplifier can generate the first driving current.

12. The terminal device according to claim 11, characterized in that: The sound-generating component includes a magnetic driver, and the magnetic driver is spaced apart from the diaphragm. When the sound-generating component is in a non-use state or in the speaker sound-generating mode, the diaphragm and the magnetic driver are in a balanced state; relative to the diaphragm being in the balanced state, when the diaphragm is in the biased state, the diaphragm is arranged away from or close to the magnetic driver; The magnetic drive component includes a first magnet and a magnetic ring that is sleeved with the first magnet, and a first gap is formed between the magnetic ring and the first magnet; the sound-generating component also includes a folding ring and a voice coil fixedly connected to the diaphragm, the voice coil is movably arranged in the first gap, and the diaphragm is fixedly connected to the magnetic ring through the folding ring.

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