CN113365188B - Speaker control method, speaker control device, and storage medium - Google Patents
Speaker control method, speaker control device, and storage medium Download PDFInfo
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- CN113365188B CN113365188B CN202010143139.7A CN202010143139A CN113365188B CN 113365188 B CN113365188 B CN 113365188B CN 202010143139 A CN202010143139 A CN 202010143139A CN 113365188 B CN113365188 B CN 113365188B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/007—Protection circuits for transducers
Abstract
The present disclosure relates to a speaker control method, a speaker control apparatus, and a computer-readable storage medium, the speaker control method including: determining that the temperature of the loudspeaker reaches a temperature protection threshold value, wherein the temperature protection threshold value is a lower limit value of the temperature of the loudspeaker which is damaged when the loudspeaker works in a low-temperature environment; when the temperature of the loudspeaker reaches a temperature protection threshold value, determining a temperature protection signal of the loudspeaker, wherein the temperature protection signal is used for protecting the loudspeaker; the temperature protection signal is used to control the loudspeaker. Through the technical scheme of this disclosure, the speaker avoids the physical damage of the speaker that the low temperature caused in the operational environment that the temperature is low, guarantees the normal work of speaker, prolongs the life of speaker.
Description
Technical Field
The present disclosure relates to the field of speaker technologies, and in particular, to a speaker control method, a speaker control apparatus, and a storage medium.
Background
The loudspeaker is a device for converting an electric signal into a sound signal to generate sound, the performance of the loudspeaker determines the sound quality of the sound generated by the loudspeaker, and the loudspeaker is an important part used in sound equipment and widely applied to work and life of people.
The service conditions that different areas, different users' service environment decide the speaker have very big difference, for example, in the environment that temperature is low, because the body of speaker, vibrating diaphragm material promptly, receive the hard fragile reaction that low temperature influence produced, lead to work abnormalities such as speaker volume decline, tone quality variation, damage even, influence the life of speaker, bring not good use experience for the user.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a speaker control method, a speaker control apparatus, and a storage medium.
According to an aspect of the embodiments of the present disclosure, there is provided a speaker control method including: determining that the temperature of the loudspeaker reaches a temperature protection threshold value, wherein the temperature protection threshold value is a lower limit value of the temperature of the loudspeaker which causes damage when the loudspeaker works in a low-temperature environment; when the temperature of the loudspeaker reaches a temperature protection threshold value, determining a temperature protection signal of the loudspeaker, wherein the temperature protection signal is used for protecting the loudspeaker; the temperature protection signal is used to control the loudspeaker.
In one embodiment, the temperature protection signal is a direct current signal; controlling a speaker with a temperature protection signal, comprising: before the audio driving signal is input to the speaker, a direct current signal is input to the speaker for a preset time period.
In one embodiment, controlling a speaker with a temperature protection signal includes: before inputting the audio driving signal to the loudspeaker, inputting a direct current signal to the loudspeaker until the temperature of the loudspeaker is greater than or equal to a low temperature critical value of normal operation of the loudspeaker.
In one embodiment, the temperature protection signal is an ultrasonic signal; controlling a speaker with a temperature protection signal, comprising: when an audio driving signal is input to the speaker, an ultrasonic signal is synchronously input to the speaker.
In an embodiment, the speaker control method further includes: and when the temperature of the loudspeaker reaches a low-temperature critical value for normal operation of the loudspeaker, reducing the signal value of the ultrasonic signal to be a set value.
According to still another aspect of the embodiments of the present disclosure, there is provided a speaker control apparatus including: the determining module is used for determining that the temperature of the loudspeaker reaches a temperature protection threshold value, wherein the temperature protection threshold value is a lower limit value of the temperature of the loudspeaker which causes damage when the loudspeaker works in a low-temperature environment; when the temperature of the loudspeaker reaches a temperature protection threshold value, determining a temperature protection signal of the loudspeaker, wherein the temperature protection signal is used for protecting the loudspeaker; and the control module is used for controlling the loudspeaker by utilizing the protection signal.
In one embodiment, the temperature protection signal is a dc signal; when the temperature protection signal is utilized to control the loudspeaker, the control module is used for: before the audio driving signal is input to the speaker, a direct current signal is input to the speaker for a preset time period.
In one embodiment, when the speaker is controlled by the temperature protection signal, the control module is configured to: before inputting the audio driving signal to the loudspeaker, inputting a direct current signal to the loudspeaker until the temperature of the loudspeaker is greater than or equal to a low temperature critical value of normal operation of the loudspeaker.
In one embodiment, the temperature protection signal is an ultrasonic signal; when the temperature protection signal is utilized to control the loudspeaker, the control module is used for: when the audio driving signal is input to the speaker, the ultrasonic signal is synchronously input to the speaker.
In one embodiment, the speaker control apparatus further includes: and the reduction module is used for reducing the signal value of the ultrasonic signal into a set value when the temperature of the loudspeaker reaches a low-temperature critical value of normal work of the loudspeaker.
According to still another aspect of the embodiments of the present disclosure, there is provided a speaker control apparatus including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: the speaker control method of any one of the preceding is performed.
According to yet another aspect of an embodiment of the present disclosure, there is provided a non-transitory computer-readable storage medium having instructions therein, which when executed by a processor of a mobile terminal, enable the mobile terminal to perform the speaker control method of one of the above-described.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: according to the embodiment of the disclosure, when the loudspeaker works in a low-temperature environment, the protection signal for protecting the loudspeaker is determined, and the loudspeaker is controlled by utilizing the protection signal, so that the physical damage of the loudspeaker caused by low temperature is avoided, the normal work of the loudspeaker is ensured, and the service life of the loudspeaker is prolonged.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flowchart illustrating a speaker control method according to an exemplary embodiment of the present disclosure.
Fig. 2 is a flowchart illustrating a speaker control method according to still another exemplary embodiment of the present disclosure.
Fig. 3 is a block diagram illustrating a speaker control apparatus according to an exemplary embodiment of the present disclosure.
Fig. 4 is a block diagram illustrating a speaker control apparatus according to still another exemplary embodiment of the present disclosure.
FIG. 5 is a block diagram illustrating an apparatus in accordance with an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Fig. 1 is a flowchart illustrating a speaker control method according to an exemplary embodiment of the present disclosure, in the embodiment of the present disclosure, a speaker may be disposed in a complete device, for example, a smart terminal such as a smart phone, a smart tablet, a wearable device, a personal palm assistant, a notebook, or may be applied to a sound-emitting household appliance and an independent speaker.
When the loudspeaker works, for example, music, video, hands-free call, music, video and other use scenes are played, and the audio signal enables the loudspeaker body to sound through the driving circuit. The diaphragm is an important component in a loudspeaker, and the compliance of the diaphragm changes along with the temperature change. In the case of extremely low temperatures, for example, when the indoor or outdoor temperature is below zero, the diaphragm may be hardened. When the loudspeaker works, a large sound driving signal is input, the vibrating diaphragm is started instantly, the service life of the vibrating diaphragm is shortened, the service life of the loudspeaker is influenced, and poor experience is brought to a user.
As shown in fig. 1, the speaker control method includes the following steps.
In step S101, it is determined that the temperature of the speaker reaches a temperature protection threshold, where the temperature protection threshold is a lower limit of a temperature at which the speaker is damaged when operating in a low-temperature environment.
And the temperature protection threshold value is the lower limit value of the temperature which damages the loudspeaker when the loudspeaker works in a low-temperature environment. That is, to protect the normal operation of the speaker, the speaker is prevented from operating at a temperature below the temperature protection threshold. The temperature protection threshold may be a temperature below zero or a lower temperature greater than zero, according to the performance parameters of the speaker and the application scenario setting.
In the embodiment of the present disclosure, the temperature of the speaker may be determined by acquiring an ambient temperature in which the speaker is located, or by acquiring a temperature of a voice coil component in the speaker. It is understood that the temperature of the speaker, determined in different ways of determination, matches the temperature protection threshold of the speaker.
When the loudspeaker works in a low-temperature environment and is started to play sound, the protection signal of the loudspeaker is determined, the protection signal heats the loudspeaker, the working temperature of the loudspeaker is increased, and low-temperature protection of the loudspeaker is achieved.
In step S102, when the temperature of the speaker reaches a temperature protection threshold, a temperature protection signal of the speaker is determined, and the temperature protection signal is used for protecting the speaker.
When the temperature of the loudspeaker reaches the temperature protection threshold value, in order to avoid damage to the loudspeaker caused by low temperature, the temperature protection signal of the loudspeaker is determined, and the loudspeaker is protected by the temperature protection signal, namely, the loudspeaker is heated by the temperature protection signal, so that the temperature of the loudspeaker body is increased.
In step S103, the speaker is controlled by the temperature protection signal.
When the loudspeaker works in a low-temperature environment and is started to play sound, the temperature protection signal of the loudspeaker is determined, the loudspeaker is heated by the temperature protection signal, and the working temperature of the loudspeaker is increased so as to realize low-temperature protection of the loudspeaker.
The loudspeaker inputs the temperature protection signal, and the temperature protection signal heats the loudspeaker, so that the temperature of the loudspeaker body rises, the temperature of the vibrating diaphragm part rises, the physical property of the vibrating diaphragm under the low-temperature environment is prevented from being damaged to the loudspeaker, the sound output quality of the loudspeaker is guaranteed, and the service life of the loudspeaker is prolonged.
In the embodiment of the disclosure, when the loudspeaker works in a low-temperature environment, when the temperature of the loudspeaker reaches the lower limit value of the temperature causing damage to the loudspeaker in the low-temperature environment, the temperature protection signal for protecting the loudspeaker is determined, and the loudspeaker is protected by the temperature protection signal, so that the physical damage of the loudspeaker caused by low temperature is avoided, the normal work of the loudspeaker is ensured, and the service life of the loudspeaker is prolonged.
In one embodiment, the temperature protection signal is a dc signal, and the dc signal is input to the speaker for a predetermined time period before the audio driving signal is input to the speaker.
When the loudspeaker is started to play music or video for sounding, the loudspeaker complete machine can generate a direct current signal as a temperature protection signal for the loudspeaker, and the direct current signal is input to the loudspeaker, so that the direct current signal passes through a voice coil assembly of the loudspeaker. That is, before the audio driving signal is input to the loudspeaker, the voice coil assembly in the loudspeaker generates heat through the direct current signal, the temperature of the voice coil rises, the temperature of the loudspeaker body rises, the temperature of the diaphragm in the loudspeaker rises, and damage is avoided.
When the environment temperature rises to the condition that the vibrating diaphragm is not damaged, the loudspeaker inputs an audio driving signal, and the loudspeaker works normally to produce sound, so that the purpose of protecting the loudspeaker is achieved, and the service life is prolonged.
It is understood that a direct current signal is input to the speaker for a preset time period. The preset time period may be set according to the usage environment condition of the speaker, the specification of the speaker, for example, the preset time period may be 20ms,10ms, or 40ms, etc.
For example, when the preset time is 20ms, the voice coil assembly in the speaker is enabled to pass through the direct current signal within 20ms, so as to warm the speaker. At the end of 20ms, an audio drive signal is input to the speaker and the speaker is operating normally.
In one embodiment, before the audio driving signal is input to the speaker, a direct current signal is input to the speaker until the temperature of the speaker is greater than or equal to a low temperature threshold at which the speaker normally operates.
In one embodiment, the temperature protection signal is an ultrasonic signal, and the ultrasonic signal is synchronously input to the loudspeaker when the audio driving signal is input to the loudspeaker.
When broadcast music or video action sound production, when to speaker input audio drive signal, the synchronous production ultrasonic signal is as the protection signal that makes the speaker intensification, promptly, makes the voice coil loudspeaker voice coil subassembly in the speaker pass through ultrasonic signal, and ultrasonic signal passes through voice coil loudspeaker voice coil subassembly and produces the heat, makes the temperature of voice coil loudspeaker voice coil subassembly rise to make speaker body temperature rise, the vibrating diaphragm temperature rise, so that the damage of the unlikely vibrating diaphragm of speaker during operation. It will be appreciated that the frequency of the ultrasonic ac signal may be greater than 20kHz.
The ultrasonic signal is used as the temperature protection signal, so that the temperature rise speed of the loudspeaker is high, the ultrasonic signal cannot be sensed by human ears, namely, the tone quality during audio playing cannot be influenced, the protection signal and the audio signal are synchronously started, the audio signal played by the loudspeaker cannot be delayed, and the user experience is improved.
Fig. 2 is a flowchart illustrating a speaker control method according to still another exemplary embodiment of the present disclosure, the speaker control method including the following steps, as shown in fig. 2.
In step S201, it is determined that the temperature of the speaker reaches a temperature protection threshold, where the temperature protection threshold is a lower limit of a temperature at which the speaker is damaged when operating in a low-temperature environment.
In step S202, when the temperature of the speaker reaches a temperature protection threshold, a temperature protection signal of the speaker is determined, and the temperature protection signal is an ultrasonic signal.
In step S203, the ultrasonic signal is synchronously input to the speaker while the audio driving signal is input to the speaker.
In step S204, when the temperature of the speaker reaches a low temperature critical value at which the speaker normally operates, the signal value of the ultrasonic signal is lowered to a set value.
When playing music or video action to sound, when inputting audio driving signal to the loudspeaker, it generates ultrasonic signal as temperature protection signal to heat the loudspeaker. Ultrasonic signals are synchronously input into the loudspeaker, so that the temperature of the loudspeaker is increased, and the damage to the loudspeaker caused by low temperature is avoided. In the working process of the loudspeaker playing music or video action to generate sound, heat is generated to raise the temperature of the loudspeaker, so that the temperature of the loudspeaker is raised to the temperature requirement of normal working. And when the temperature of the loudspeaker reaches a low-temperature critical value for normal operation of the loudspeaker, reducing the signal value of the ultrasonic signal to be a set value.
It will be appreciated that the low temperature threshold for normal operation of the speaker is above the temperature protection threshold. The low-temperature critical value of the normal work of the loudspeaker can be set according to performance parameters and application environments of the loudspeaker, and can be zero temperature or temperature above zero temperature.
The setting value of the ultrasonic signal may be zero or a small value which is greater than zero and close to zero, for example, when the setting value of the signal value is zero, that is, the input of the protection signal for warming the speaker is stopped, the voice coil of the speaker is not heated, and high temperature damage caused by too fast temperature rising speed or too high temperature of the speaker is avoided.
Fig. 3 is a block diagram illustrating a speaker control apparatus according to an exemplary embodiment of the present disclosure. As shown in fig. 3, the speaker control apparatus 300 includes: a determination module 310 and a control module 320.
The obtaining module 310 is configured to determine that the temperature of the speaker reaches a temperature protection threshold, where the temperature protection threshold is a lower limit of a temperature at which the speaker is damaged when the speaker works in a low-temperature environment; and when the temperature of the loudspeaker reaches a temperature protection threshold value, determining a temperature protection signal of the loudspeaker, wherein the temperature protection signal is used for protecting the loudspeaker.
And a control module 320 for controlling the speaker by using the protection signal.
In an embodiment, the temperature protection signal is a dc signal, and when the speaker is controlled by the temperature protection signal, the control module 320 is configured to: before the audio driving signal is input to the speaker, a direct current signal is input to the speaker for a preset time period.
In one embodiment, when the speaker is controlled by the temperature protection signal, the control module 320 is configured to: before inputting the audio driving signal to the loudspeaker, inputting a direct current signal to the loudspeaker until the temperature of the loudspeaker is greater than or equal to a low temperature critical value of normal operation of the loudspeaker.
In one embodiment, the temperature protection signal is an ultrasonic signal; when the temperature protection signal is used to control the speaker, the control module 320 is configured to: when the audio driving signal is input to the speaker, the ultrasonic signal is synchronously input to the speaker.
Fig. 4 is a block diagram illustrating a speaker control apparatus according to still another exemplary embodiment of the present disclosure. As shown in fig. 4, the speaker control apparatus 300 further includes: and a lowering module 330.
And the reducing module 330 is configured to reduce the signal value of the ultrasonic signal to a set value when the temperature of the speaker reaches a low temperature critical value at which the speaker normally operates.
With regard to the apparatus in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here.
FIG. 5 is a block diagram illustrating an apparatus in accordance with an example embodiment. For example, the speaker control apparatus 500 may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 5, the speaker control apparatus 500 may include one or more of the following components: a processing component 502, a memory 504, a power component 506, a multimedia component 508, an audio component 510, an input/output (I/O) interface 512, a sensor component 514, and a communication component 516.
The processing component 502 generally controls overall operation of the speaker control device 500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 502 may include one or more processors 520 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 502 can include one or more modules that facilitate interaction between the processing component 502 and other components. For example, the processing component 502 can include a multimedia module to facilitate interaction between the multimedia component 508 and the processing component 502.
The memory 504 is configured to store various types of data to support the operation at the speaker control 500. Examples of such data include instructions for any application or method operating on speaker control device 500, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 504 may be implemented by any type or combination of volatile or non-volatile memory devices, 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 or optical disks.
The power component 506 provides power to the various components of the speaker control device 500. The power components 506 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the speaker control device 500.
The multimedia component 508 includes a screen that provides an output interface between the speaker control device 500 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or slide action, but also monitor the duration and pressure associated with the touch or slide action. In some embodiments, the multimedia component 508 includes a front facing camera and/or a rear facing camera. When the speaker control apparatus 500 is in an operation mode, such as a photographing mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 510 is configured to output and/or input audio signals. For example, the audio component 510 includes a Microphone (MIC) configured to receive an external audio signal when the speaker control apparatus 500 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 504 or transmitted via the communication component 516. In some embodiments, audio component 510 further includes a speaker for outputting audio signals.
The I/O interface 512 provides an interface between the processing component 502 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 514 includes one or more sensors for providing various aspects of state estimation for the speaker control device 500. For example, the sensor assembly 514 may detect an open/closed state of the speaker control device 500, the relative positioning of components, such as a display and keypad of the speaker control device 500, the sensor assembly 514 may also detect a change in position of the speaker control device 500 or a component of the speaker control device 500, the presence or absence of user contact with the speaker control device 500, the orientation or acceleration/deceleration of the speaker control device 500, and a change in temperature of the speaker control device 500. The sensor assembly 514 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 514 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 516 is configured to facilitate wired or wireless communication between the speaker control apparatus 500 and other devices. The speaker control device 500 may access a wireless network based on a communication standard, such as WiFi,2G or 5G, or a combination thereof. In an exemplary embodiment, the communication component 516 receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 516 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the speaker control apparatus 500 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 504 comprising instructions, executable by the processor 520 of the speaker control apparatus 500 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (12)
1. A speaker control method, characterized by comprising:
determining that the temperature of the speaker reaches a temperature protection threshold;
the temperature protection threshold is a temperature lower limit value of damage caused by the loudspeaker in the low-temperature environment, and is set according to performance parameters and application scenes of the loudspeaker, and
the temperature of the loudspeaker determined by different determination modes is matched with the temperature protection threshold value of the loudspeaker;
when the temperature of the loudspeaker reaches the temperature protection threshold value and the loudspeaker is started to play sound, determining a temperature protection signal of the loudspeaker, wherein the temperature protection signal is used for protecting the loudspeaker;
controlling the loudspeaker by using the temperature protection signal;
wherein the controlling the speaker using the temperature protection signal includes: the temperature protection signal is used for heating the loudspeaker, so that the temperature of the loudspeaker body is increased.
2. The speaker control method according to claim 1, wherein the temperature protection signal is a direct current signal;
controlling the speaker with the temperature protection signal, comprising:
inputting the DC signal to the speaker for a preset duration before inputting the audio driving signal to the speaker.
3. The method of claim 2, wherein controlling the speaker using the temperature protection signal comprises:
before inputting the audio driving signal to the loudspeaker, the direct current signal is input to the loudspeaker until the temperature of the loudspeaker is larger than or equal to a low-temperature critical value of normal operation of the loudspeaker.
4. The speaker control method according to claim 1, wherein the temperature protection signal is an ultrasonic signal;
controlling the speaker with the temperature protection signal, comprising:
the ultrasonic signal is synchronously input to the speaker when the audio driving signal is input to the speaker.
5. The speaker control method according to claim 4, characterized in that the speaker control method further comprises:
and when the temperature of the loudspeaker reaches a low-temperature critical value of normal work of the loudspeaker, reducing the signal value of the ultrasonic signal to be a set value.
6. A speaker control apparatus, characterized by comprising:
the determining module is used for determining that the temperature of the loudspeaker reaches a temperature protection threshold value;
the temperature protection threshold is a temperature lower limit value of damage caused by the loudspeaker in the low-temperature environment, and is set according to performance parameters and application scenes of the loudspeaker, and
the temperature of the loudspeaker determined by different determination modes is matched with the temperature protection threshold value of the loudspeaker;
when the temperature of the loudspeaker reaches the temperature protection threshold value and the loudspeaker is started to play sound, determining a temperature protection signal of the loudspeaker, wherein the temperature protection signal is used for protecting the loudspeaker;
the control module is used for controlling the loudspeaker by utilizing the protection signal;
wherein the controlling the speaker using the temperature protection signal includes: the temperature protection signal is used for heating the loudspeaker, so that the temperature of the loudspeaker body is increased.
7. The speaker control device of claim 6, wherein the temperature protection signal is a direct current signal;
when the temperature protection signal is used for controlling the loudspeaker, the control module is used for:
inputting the DC signal to the speaker for a preset duration before inputting the audio driving signal to the speaker.
8. The speaker control apparatus of claim 7, wherein when the speaker is controlled by the temperature protection signal, the control module is configured to:
before inputting the audio driving signal to the loudspeaker, the direct current signal is input to the loudspeaker until the temperature of the loudspeaker is larger than or equal to a low-temperature critical value of normal operation of the loudspeaker.
9. The speaker control device of claim 6, wherein the temperature protection signal is an ultrasonic signal;
when the temperature protection signal is used for controlling the loudspeaker, the control module is used for:
and synchronously inputting the ultrasonic signals to the loudspeaker when the loudspeaker inputs the audio driving signals.
10. The speaker control apparatus according to claim 9, characterized by further comprising:
and the reducing module is used for reducing the signal value of the ultrasonic signal to be a set value when the temperature of the loudspeaker reaches the low-temperature critical value of the normal work of the loudspeaker.
11. A speaker control apparatus, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to: executing the loudspeaker control method according to any of claims 1 to 5.
12. A non-transitory computer-readable storage medium having instructions therein, which when executed by a processor of a mobile terminal, enable the mobile terminal to perform the speaker control method of any one of claims 1 to 5.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205336527U (en) * | 2016-01-25 | 2016-06-22 | 嘉善圣通电子有限公司 | Speaker with temperature control function |
| CN109429145A (en) * | 2017-08-22 | 2019-03-05 | 恩智浦有限公司 | Audio processor |
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| TWI592034B (en) * | 2014-03-14 | 2017-07-11 | 瑞昱半導體股份有限公司 | Audio apparatus with thermal controlling ability and the controlling method thereof |
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2020
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205336527U (en) * | 2016-01-25 | 2016-06-22 | 嘉善圣通电子有限公司 | Speaker with temperature control function |
| CN109429145A (en) * | 2017-08-22 | 2019-03-05 | 恩智浦有限公司 | Audio processor |
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