Audio signal output method and device and wireless communication terminal

Abstract

The invention provides an audio signal output method and device and wireless communication equipment, and the method comprises the following steps: obtaining an audio data packet, and determining a working mode of an audio power amplifier system; the working mode comprises a first working mode or a second working mode; the frequency response range of the first working mode corresponds to an auditory frequency range, and the frequency response range of the second working mode corresponds to a human voice frequency range; determining a frequency response range of the audio power amplifier system according to the working mode of the audio power amplifier system; and controlling the audio power amplifier system to carry out audio output on the audio data packet according to the frequency response range of the audio power amplifier system. According to the audio signal output method provided by the invention, the adaptive adjustment capability of the audio power amplifier system can be enhanced.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to an audio signal output method, a communication device and a wireless communication terminal. Background Art

[0002] With the continuous development of audio technology, the audio amplifier system of terminal equipment has become a key component for users to enjoy high-quality audio experience, and is widely used in various occasions such as consumer electronics, home entertainment, professional performances, conference systems, etc. Users have higher and higher requirements for audio quality, and more sophisticated and intelligent audio processing technology is needed to meet the needs of different scenarios.

[0003] In the related art, the audio power amplifier system is usually designed to have a fixed frequency response range. This is determined by the components and circuit topology in the design. From a hardware perspective, the frequency response range is relatively fixed. The audio power amplifier system adopts a fixed frequency response range, and the adaptive adjustment ability of the system has great limitations. Therefore, how to enhance the adaptive adjustment ability of the audio power amplifier system has become an important issue that needs to be solved urgently. Summary of the invention

[0004] In a first aspect, a method for outputting an audio signal is provided, the method being applied to an audio power amplifier system of a terminal device, the method comprising the following steps: acquiring an audio data packet and determining an operating mode of the audio power amplifier system; the operating mode comprising a first operating mode or a second operating mode; a frequency response range of the first operating mode corresponds to an auditory frequency range, and a frequency response range of the second operating mode corresponds to a human voice frequency range; determining a frequency response range of the audio power amplifier system according to the operating mode of the audio power amplifier system; and controlling the audio power amplifier system to output audio of the audio data packet according to the frequency response range of the audio power amplifier system.

[0005] In the above scheme, by distinguishing the first working mode and the second working mode and setting different frequency response ranges for them respectively, the audio data packet can be processed more accurately. The first working mode corresponds to the auditory frequency range, which is suitable for playing full-band music or sounds containing rich audio information, ensuring comprehensive coverage from low frequency to high frequency, thereby improving the clarity and layering of the overall audio. The second working mode corresponds to the human voice frequency range, which makes the human voice more prominent and clear by reducing the processing of non-human voice frequency bands, and is suitable for phone calls, voice chats or scenes where the human voice needs to be emphasized.

[0006] In one implementation, the determining of the working mode of the audio power amplifier system includes the following steps: detecting an ambient temperature value of the terminal device, and determining the working mode of the audio power amplifier system according to a temperature range of the ambient temperature value.

[0007] In the above solution, the audio power amplifier system can automatically adjust the working mode according to the external environmental conditions, which enhances the adaptability and intelligence level of the system. This adaptive capability helps to cope with complex and changing usage environments and improve the reliability and stability of the equipment.

[0008] In one implementation, determining the working mode of the audio power amplifier system includes the following steps: in an initial working mode, detecting the audio type of the audio data packet, the audio type including music or human voice; and determining the working mode of the audio power amplifier system according to the audio type of the audio data packet.

[0009] In the above scheme, for audio types that do not require full-band or high dynamic range processing (such as certain types of vocal recordings), by selecting a more energy-saving working mode, the resource consumption of the audio power amplifier system, including power and processing power, can be reduced. This helps to extend the battery life of the terminal device and reduce the operating cost of the device.

[0010] In one implementation, determining the working mode of the audio power amplifier system according to the temperature interval in which the ambient temperature value is located comprises the following steps: when the ambient temperature value is in a first temperature interval, determining the first working mode as the working mode of the audio power amplifier system;

[0011] When the ambient temperature value is within a second temperature range, the second operating mode is determined as the operating mode of the audio power amplifier system.

[0012] In the above scheme, the working mode of the audio power amplifier system is determined based on the comparison between the ambient temperature value and the preset temperature value, thereby achieving temperature adaptability optimization, hardware protection, and energy efficiency improvement. The audio power amplifier system can automatically adjust the working mode according to the change of ambient temperature, thereby maintaining the best performance under different temperature conditions.

[0013] In one implementation, determining the working mode of the audio power amplifier system according to the audio type of the audio data packet includes the following steps: when the audio type of the audio data packet is music, determining the first working mode as the working mode of the audio power amplifier system; when the audio type of the audio data packet is human voice, determining the second working mode as the working mode of the audio power amplifier system.

[0014] In the above scheme, the working mode of the audio power amplifier system is determined according to the audio type of the audio data packet, so that the audio power amplifier system has the ability to automatically adjust the working mode according to the audio type, and enhances the flexibility and adaptability of the system. It achieves the optimization of audio quality, the improvement of user experience, the effective use of resources, the enhancement of system flexibility and the promotion of audio technology innovation. It provides users with a more personalized and high-quality audio experience. No matter what type of audio the user plays, the system can quickly identify and switch to the most appropriate working mode to provide the best listening experience.

[0015] In one implementation, determining the frequency response range of the audio power amplifier system according to the working mode of the audio power amplifier system comprises the following steps:

[0016] Detecting an operating temperature value of the audio power amplifier system, and when the operating temperature value is greater than a preset temperature value, adjusting a frequency response range of the audio power amplifier system until the operating temperature value of the audio power amplifier system is less than the preset temperature value.

[0017] In the above scheme, the operating temperature value of the audio power amplifier system is detected in real time, and active measures are taken when the operating temperature value exceeds the preset safety threshold, that is, the frequency response range of the audio power amplifier system is adjusted, which can effectively prevent the system from being damaged due to overheating.

[0018] In the above scheme, the operating temperature value of the audio power amplifier system is detected in real time, and active measures are taken when the operating temperature value exceeds the preset safety threshold to adjust the frequency response range of the audio power amplifier system, control the operating temperature value of the audio power amplifier system within a safe range, and reduce the sound quality degradation caused by overheating.

[0019] In one implementation, the audio power amplifier system is controlled to perform audio output on the audio data packet according to the frequency response range of the audio power amplifier system, comprising the following steps: determining a cutoff frequency of a filter according to the frequency response range of the audio power amplifier system; and controlling the audio power amplifier system to perform audio output on the audio data packet according to the cutoff frequency of the filter.

[0020] In the above scheme, the cutoff frequency of the filter is determined according to the frequency response range of the audio power amplifier system, which can ensure that only audio signals within the effective amplification frequency range of the system are passed, avoiding the influence of high-frequency or low-frequency signals exceeding the system capability on the output sound quality, such as high-frequency distortion, low-frequency roll-off, etc., thereby improving the overall quality of the audio output.

[0021] In a second aspect, an audio signal output device is provided, the device comprising:

[0022] An acquisition module, used to acquire an audio data packet and determine an operating mode of the audio power amplifier system; the operating mode includes a first operating mode or a second operating mode; the frequency response range of the first operating mode corresponds to the auditory frequency range, and the frequency response range of the second operating mode corresponds to the human voice frequency range;

[0023] A processing module, configured to determine a frequency response range of the audio power amplifier system according to an operating mode of the audio power amplifier system;

[0024] The playing module is used to control the audio power amplifier system to output the audio data packet according to the frequency response range of the audio power amplifier system.

[0025] In a third aspect, a wireless communication terminal is provided, the wireless communication terminal comprising a memory and a processor, the processor being used to execute a computer program, the computer program being used to implement the audio signal output method described in the first aspect or the second aspect.

[0026] 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

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0028] Figure 1 An application scenario diagram of the audio signal output method provided in an embodiment of the present disclosure;

[0029] Figure 2 A flowchart of an audio signal output method provided by an embodiment of the present disclosure;

[0030] Figure 3 Schematic diagram of the frequency response range provided by the embodiment of the present disclosure Figure 1 ;

[0031] Figure 4 Schematic diagram of the frequency response range provided by the embodiment of the present disclosure Figure 2 ;

[0032] Figure 5 A schematic diagram of different working modes provided by an embodiment of the present disclosure;

[0033] Figure 6 A schematic diagram of a PID control process according to an embodiment of the present disclosure;

[0034] Figure 7 A schematic diagram of the structure of an audio signal output device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0036] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0037] Figure 1 This is an application scenario diagram of the audio signal output method provided by the embodiment of the present disclosure. Figure 1 With the continuous advancement of audio technology, audio processing equipment such as audio amplifier systems have been widely used in various occasions, including home entertainment, professional performances, conference systems, etc. These systems have increasingly higher requirements for audio quality, requiring more sophisticated and intelligent audio processing technologies to meet the needs of different scenarios.

[0038] There are many types of audio, including music, human voice, environmental sound, etc. Different types of audio have significant differences in frequency distribution, dynamic range, timbre, etc. In order to obtain the best listening experience, the audio processing parameters need to be adjusted according to the audio type to match the audio characteristics.

[0039] The working performance of the audio amplifier system is affected by environmental factors, especially temperature. In a high temperature environment, the performance and stability of the audio amplifier system may decrease, or even cause hardware damage. Therefore, it is necessary to adjust the working mode of the audio amplifier system according to the ambient temperature to ensure that it can maintain optimal performance under different environmental conditions.

[0040] Figure 2 This is an application scenario diagram of the audio signal output method provided by the embodiment of the present disclosure. Figure 2 The audio signal output method provided by the embodiment of the present disclosure can be applied to the audio power amplifier system of the terminal device, and the method includes the following steps:

[0041] Step 201: Acquire an audio data packet and determine an operating mode of the audio power amplifier system; the operating mode includes a first operating mode or a second operating mode; the frequency response range of the first operating mode corresponds to the auditory frequency range, and the frequency response range of the second operating mode corresponds to the human voice frequency range.

[0042] In the example, a listener is set at the entrance of the audio amplifier system to monitor the audio data source and capture audio data packets input from sources such as applications, files, or networks. When an audio data packet arrives, the packet header information or the accompanying metadata is parsed.

[0043] In the example, referring to Table 1, the audio type of the audio data packet is determined, and the audio type includes music or human voice; and the working mode of the audio power amplifier system is determined according to the audio type of the audio data packet.

[0044] Table 1 Mapping relationship between audio type and frequency response range

[0045]

[0046] In the example, referring to Table 2, the ambient temperature value of the terminal device is detected, and the working mode of the audio power amplifier system is determined according to the temperature range of the ambient temperature value; the working mode includes the first working mode or the second working mode.

[0047] Table 2 Mapping relationship between ambient temperature and frequency response range

[0048]

[0049] Step 202: Determine a frequency response range of the audio power amplifier system according to the working mode of the audio power amplifier system.

[0050] In the example, a mapping relationship between the working mode and the frequency response range of the audio power amplifier system is pre-established, see Figure 3 and Figure 4 In the system, the frequency response range of the first working mode is predefined as the auditory frequency range, such as 20Hz-20kHz, and the frequency response range of the second working mode is the human voice frequency range, such as 300Hz-3.4kHz. In actual applications, the mode ID matching the audio type of the audio data packet can be found, and the corresponding frequency response range can be directly obtained by looking up the table or calculating according to the mode ID.

[0051] Step 203: Control the audio power amplifier system to output the audio data packet according to the frequency response range of the audio power amplifier system.

[0052] Before the audio signal passes through the power amplifier system, a filter can be applied based on the determined frequency response range. This filter can be a digital filter (for example, a FIR or IIR filter) that retains the audio components within the frequency response range and attenuates or removes the components outside the range. If necessary, the gain of the audio signal is adjusted according to the operating mode to ensure that the output audio remains consistent in the user's auditory experience or is adjusted as required. The processed audio signal is sent to the audio power amplifier module, which converts the electrical signal into an acoustic signal and outputs it through a sound-generating device such as a speaker.

[0053] In practical applications, the actual output sound can be collected through sensors (such as microphones) and compared with the expected frequency response to achieve real-time monitoring and dynamic adjustment to ensure output quality. At the same time, factors such as the stability, real-time performance, and power consumption optimization of the audio system need to be considered, and audio data synchronization and buffering may need to be processed. In addition, for different types of audio content and different usage scenarios, it may be necessary to adjust the working mode judgment logic and frequency response range processing strategy.

[0054] In the above solution, in scenarios where full-band audio output is not required (such as playing only audio with human voice as the main component), switching to the second working mode can significantly reduce the power consumption of the audio amplifier system. Because the processing of unnecessary frequency bands is reduced, it not only reduces the processing burden of the system, but also reduces unnecessary energy consumption, thus extending the battery life of the terminal device.

[0055] In the above scheme, different frequency response ranges are set for different working modes, which helps to reduce noise and distortion in the audio output. In the second working mode, by limiting the processing frequency band to the human voice frequency range, background noise and noise outside the frequency range can be more effectively filtered out, making the human voice purer and more natural.

[0056] In the above solution, the working mode of the audio amplifier system is automatically adjusted according to the actual application scenario, without the need for manual settings by the user, which greatly improves the convenience of use and user experience. Whether listening to music, watching videos, or making voice calls, you can get the audio output effect that best suits the current scenario.

[0057] In one implementation, determining the working mode of the audio power amplifier system includes the following steps: detecting the ambient temperature value of the terminal device, and determining the working mode of the audio power amplifier system according to the temperature range of the ambient temperature value; the working mode includes a first working mode or a second working mode.

[0058] It should be understood that ambient temperature is one of the important factors affecting the performance and power consumption of electronic devices. In a high temperature environment, the working efficiency and stability of electronic components may decrease, while power consumption will increase. By detecting the ambient temperature and comparing it with the preset temperature value, the solution can intelligently select the working mode that best suits the current environment.

[0059] In high temperature environments, it can switch to the second working mode with lower power consumption and less stress on temperature-sensitive components to avoid performance degradation or device damage caused by overheating. In lower temperature environments, it can switch to the first working mode with better performance and more comprehensive functions to provide higher quality audio output.

[0060] In actual applications, long-term operation in a high-temperature environment may shorten the life of electronic equipment and even cause hardware damage. By adjusting the working mode of the audio power amplifier system according to the ambient temperature, this solution can reduce the damage to the hardware caused by high temperature to a certain extent and extend the service life of the equipment. Especially under high temperature conditions, by switching to low power consumption mode, the internal temperature of the device can be reduced to prevent overheating.

[0061] In the above solution, by intelligently adapting to changes in ambient temperature, the solution can ensure stable, high-quality audio output in different environments. Users do not need to worry about the impact of ambient temperature on audio quality, thus obtaining a smoother and more consistent audio experience. In addition, by reducing performance degradation or device failure caused by high temperature, the overall user satisfaction with the device can also be improved.

[0062] In the above scheme, the working mode of the audio amplifier system is determined according to the ambient temperature value, which achieves the optimization of performance and power consumption, the protection of hardware security and the enhancement of system adaptability. In an environment where high-performance audio output is not required (such as a low temperature environment or a scene where only human voice output is required), by switching to a low-power working mode, this scheme helps to reduce unnecessary energy consumption and achieve the goal of energy conservation and emission reduction. This is of great significance for improving the environmental performance of the equipment and reducing the cost of use.

[0063] In one implementation, determining the working mode of the audio power amplifier system includes the following steps: in an initial working mode, detecting the audio type of an audio data packet, the audio type including music or human voice; and determining the working mode of the audio power amplifier system according to the audio type of the audio data packet.

[0064] In actual applications, the packet header information or accompanying metadata contains fields indicating audio characteristics (such as sampling rate, number of channels, etc.), as well as possible system-specific instructions or mode flags.

[0065] In the example, the audio type of the audio data packet is determined according to the data packet header information or the accompanying metadata, and the working mode of the audio power amplifier system is determined according to the audio type of the audio data packet and the preset rules. Figure 5 The temperature range corresponding to the initial working mode is (-10°C, 35°C). In the initial working mode, the audio type of the audio data packet is detected, and the audio type includes music or human voice; according to the audio type of the audio data packet, the working mode of the audio power amplifier system is determined.

[0066] In actual applications, different audio types (music and vocals) differ in frequency distribution, dynamic range, timbre characteristics, etc. By identifying the audio type, the solution can specifically adjust the working mode of the audio amplifier system to better match the audio characteristics. For example, for music-type audio, a wider frequency response range and a higher dynamic range can be selected to show the rich layers and details of the music; while for vocal-type audio, the performance of the mid-frequency band can be optimized to make the vocals clearer and more natural.

[0067] It should be understood that when users use terminal devices to play audio, they often expect to obtain an auditory experience that matches the audio content. This solution can automatically provide users with the audio output effect that best suits the current audio content by intelligently identifying the audio type and adjusting the working mode, thereby improving the user's auditory enjoyment and overall satisfaction.

[0068] In the above scheme, the working mode of the audio amplifier system is determined by identifying the audio type of the audio data packet, thereby optimizing the audio output quality, reducing resource consumption, enhancing the intelligence of the system, and promoting innovation in audio technology. The system can automatically sense changes in audio content and adjust the working mode accordingly to adapt to different audio playback requirements. This adaptive capability makes the system more flexible and efficient, and can better meet the personalized needs of users.

[0069] In one implementation, determining the working mode of the audio power amplifier system according to the temperature interval in which the ambient temperature value is located includes the following steps: when the ambient temperature value is in the first temperature interval, determining the first working mode as the working mode of the audio power amplifier system;

[0070] When the ambient temperature value is within the second temperature range, the second operating mode is determined as the operating mode of the audio power amplifier system.

[0071] When the ambient temperature is high, selecting the second working mode (which may be low power consumption or low performance mode) helps reduce problems such as hardware overheating, performance degradation and increased power consumption caused by high temperature. On the contrary, at a lower ambient temperature, selecting the first working mode (which may be high performance or full function mode) can ensure the quality and effect of audio output.

[0072] In practical applications, high temperature is one of the common causes of hardware damage in electronic devices. By adjusting the working mode according to the ambient temperature, this solution helps prevent the audio amplifier system from being damaged due to long-term operation in a high-temperature environment. Especially under high-temperature conditions, timely switching to low-power mode can significantly reduce the internal temperature of the device and extend the hardware life.

[0073] In the above solution, the intelligent and automatic control of the audio amplifier system is achieved by automatically detecting the ambient temperature and adjusting the working mode. This adaptive capability reduces the need for manual intervention by the user and improves the ease of use and convenience of the system. Regardless of how the ambient temperature changes, the solution ensures that the audio amplifier system operates in the working mode that best suits the current environment, thereby providing stable, high-quality audio output.

[0074] In practical applications, the specific settings of the first working mode and the second working mode (such as low power mode and high performance mode) should be determined according to the specific hardware characteristics and design requirements of the audio power amplifier system. In addition, the selection of the preset temperature value should also take into account factors such as the working environment of the device, heat dissipation conditions, and user usage habits.

[0075] In one implementation, determining an operating mode of an audio power amplifier system according to an audio type of an audio data packet includes the following steps: when the audio type of the audio data packet is music, determining a first operating mode as the operating mode of the audio power amplifier system; when the audio type of the audio data packet is voice, determining a second operating mode as the operating mode of the audio power amplifier system.

[0076] In practical applications, different audio types have significant differences in frequency distribution, dynamic range, timbre, etc. By selecting the appropriate working mode according to the audio type, this solution can optimize the processing parameters of the audio amplifier system to better match the audio characteristics.

[0077] For example, for music-type audio, the first working mode may emphasize wider frequency response, higher dynamic range, and richer timbre performance to restore the details and layering of the music; while for vocal-type audio, the second working mode may pay more attention to the clarity and naturalness of the mid-frequency band, making the vocals more prominent and easy to understand.

[0078] In actual applications, when using audio devices, users expect to get a listening experience that matches the audio content. This solution can automatically provide users with the most suitable audio output effect for the current audio content by intelligently identifying the audio type and adjusting the working mode. This personalized audio processing not only improves the sound quality, but also enhances the user's immersion and satisfaction.

[0079] In the above scheme, for audio types that do not require full-band or high dynamic range processing (such as certain types of vocal recordings), selecting the second operating mode can more efficiently utilize the resources of the audio power amplifier system. This helps reduce unnecessary power consumption and processing burden, and improves the overall efficiency and performance of the device.

[0080] In one implementation, determining a frequency response range of an audio power amplifier system according to an operating mode of the audio power amplifier system includes the following steps:

[0081] The operating temperature value of the audio power amplifier system is detected, and when the operating temperature value is greater than a preset temperature value, the frequency response range of the audio power amplifier system is adjusted until the operating temperature value of the audio power amplifier system is less than the preset temperature value.

[0082] See also Figure 6 In the current working mode, the working temperature value of the audio power amplifier system is detected in real time. When the working temperature value exceeds the preset temperature value, active measures are taken to adjust the frequency response range of the audio power amplifier system, and control the working temperature value of the audio power amplifier system to be less than the preset temperature value, thereby reducing the sound quality degradation caused by overheating.

[0083] In the example, the operating temperature value of the audio power amplifier system is detected in real time and input into the PID controller as a feedback signal. According to the output of the PID controller, the frequency response range of the audio power amplifier system is adjusted. This can be achieved by changing the cutoff frequency of the filter to achieve the purpose of reducing the operating temperature of the amplifier. The above process is repeated to form a closed-loop control system. The system will continuously monitor the temperature and adjust the parameters of the audio power amplifier system as needed to keep the temperature within the preset safety range. The PID controller is designed as follows:

[0084] Proportional (P) term: Based on the deviation (error) between the current temperature and the preset temperature value, an adjustment amount proportional to the deviation is directly calculated. The larger the deviation, the larger the adjustment amount, so as to reduce the deviation faster.

[0085] Integral (I) term: accumulates temperature deviations over time to eliminate static errors in the system. Even if the deviation is small, the integral term gradually accumulates until the deviation is completely eliminated. This helps the system reach a stable temperature state.

[0086] Derivative (D) term: predicts the trend of future temperature deviation and makes adjustments in advance. By calculating the rate of change of temperature deviation, the derivative term can start making adjustments before the deviation actually becomes larger, thereby speeding up the system's response and reducing overshoot.

[0087] The algorithm formula of PID controller can be expressed as: Where: u(t) is the output of the PID controller and is the control signal to be applied to the controlled object. p is the proportional gain (ProportionalGain), which determines the response degree of the proportional term to the deviation. e(t) is the error (Error), that is, the difference between the set value (SP, SetPoint) and the current value (PV, ProcessVariable) of the controlled object, e(t) = SP-PV. K i is the integral gain (IntegralGain), which determines the degree of response of the integral term to the accumulated deviation. ∫0te(τ)dτ is the integral of the deviation, the accumulated deviation from the initial time to the current time. K d is the derivative gain, which determines the degree of response of the derivative term to the rate of change of the deviation. de(t) / dt is the rate of change of the deviation, that is, the derivative of the deviation, which indicates how fast the deviation changes over time.

[0088] In a high temperature environment, the audio amplifier system needs to consume more power to maintain its normal working state. When the temperature is too high, the performance of the audio amplifier system may be affected, resulting in a decrease in sound quality or distortion. Audio amplifier systems that operate in a high temperature environment for a long time are prone to unstable performance or frequent failures. By adjusting the frequency response range to reduce the operating temperature, the system failure rate caused by overheating can be significantly reduced, and the overall stability and reliability of the system can be improved.

[0089] In one implementation, the audio power amplifier system is controlled to perform audio output on an audio data packet according to a frequency response range of the audio power amplifier system, including the following steps: determining a cutoff frequency of a filter according to the frequency response range of the audio power amplifier system; and controlling the audio power amplifier system to perform audio output on the audio data packet according to the cutoff frequency of the filter.

[0090] When an audio data packet enters the audio amplifier system, the system will parse and preprocess the audio data packet. During this process, the audio signal will pass through a filter. The filter filters the audio signal according to the cutoff frequency and only allows signals within the passband range to pass.

[0091] Figure 7 A schematic diagram of the structure of the audio signal output device provided in the embodiment of the present disclosure; see Figure 7 , the present disclosure provides an audio signal output device, comprising:

[0092] The acquisition module 701 is used to acquire an audio data packet and determine the working mode of the audio power amplifier system; the working mode includes a first working mode or a second working mode; the frequency response range of the first working mode corresponds to the auditory frequency range, and the frequency response range of the second working mode corresponds to the human voice frequency range;

[0093] The processing module 702 is used to determine the frequency response range of the audio power amplifier system according to the working mode of the audio power amplifier system;

[0094] The playing module 703 is used to control the audio power amplifier system to output the audio data packet according to the frequency response range of the audio power amplifier system.

[0095] In the wireless communication terminal provided in the embodiment of the present disclosure, the audio power amplifier system executes the above-mentioned audio signal output method. The audio power amplifier system is an important component of the wireless communication terminal, and is mainly responsible for amplifying low-level audio signals to drive the speaker to sound, thereby reproducing the sound. The audio power amplifier system is composed of multiple key parts, including a pre-stage, a power stage, and an output stage, which work together to achieve the amplification and transmission of audio signals.

[0096] The description of each embodiment above tends to emphasize the differences between the embodiments, and the same or similar parts can be referenced to each other. The features disclosed in each product embodiment provided by this application can be combined arbitrarily without conflict to obtain a new product embodiment.

[0097] The product embodiments described above are only illustrative. For example, the division of units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the units can be electrical or mechanical.

[0098] This specification uses the phrase "in an embodiment", which may refer to one or more embodiments of the same or different embodiments. The terms "including", "comprising", "having", etc. as used with respect to the embodiments of the present disclosure are synonymous. The ordinal adjectives "first", "second", and "third" merely indicate that different instances of similar objects are being referenced and are not intended to imply that the objects so described must be in a given sequence in time, space, order, or in any other way.

[0099] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An audio signal output method, characterized in that: The method is applied to an audio power amplifier system of a terminal device, and the method comprises the following steps: Acquire an audio data packet and determine an operating mode of the audio power amplifier system; the operating mode includes a first operating mode or a second operating mode; the frequency response range of the first operating mode corresponds to the auditory frequency range, and the frequency response range of the second operating mode corresponds to the human voice frequency range; Determining a frequency response range of the audio power amplifier system according to an operating mode of the audio power amplifier system; According to the frequency response range of the audio power amplifier system, the audio power amplifier system is controlled to perform audio output on the audio data packet.

2. The method according to claim 1, characterized in that: Determining the working mode of the audio power amplifier system comprises the following steps: The ambient temperature value of the terminal device is detected, and the working mode of the audio power amplifier system is determined according to the temperature range of the ambient temperature value.

3. The method according to claim 1, characterized in that Determining the working mode of the audio power amplifier system comprises the following steps: In an initial working mode, detecting an audio type of the audio data packet, the audio type including music or human voice; The working mode of the audio power amplifier system is determined according to the audio type of the audio data packet.

4. The method according to claim 2, characterized in that: Determining the working mode of the audio power amplifier system according to the temperature interval of the ambient temperature value comprises the following steps: When the ambient temperature value is within a first temperature range, determining the first operating mode as the operating mode of the audio power amplifier system; When the ambient temperature value is within a second temperature range, the second operating mode is determined as the operating mode of the audio power amplifier system.

5. The method according to claim 3, characterized in that: Determining the working mode of the audio power amplifier system according to the audio type of the audio data packet comprises the following steps: When the audio type of the audio data packet is music, determining the first working mode as the working mode of the audio power amplifier system; When the audio type of the audio data packet is human voice, the second working mode is determined as the working mode of the audio power amplifier system.

6. The method according to claim 1, characterized in that Determining the frequency response range of the audio power amplifier system according to the working mode of the audio power amplifier system comprises the following steps: Detecting an operating temperature value of the audio power amplifier system, and when the operating temperature value is greater than a preset temperature value, adjusting a frequency response range of the audio power amplifier system until the operating temperature value of the audio power amplifier system is less than the preset temperature value.

7. The method according to claim 1, characterized in that According to the frequency response range of the audio power amplifier system, controlling the audio power amplifier system to perform audio output on the audio data packet comprises the following steps: Determining the cutoff frequency of the filter according to the frequency response range of the audio power amplifier system; According to the cutoff frequency of the filter, the audio power amplifier system is controlled to perform audio output on the audio data packet.

8. An audio signal output device, characterized in that: The device comprises: An acquisition module, used to acquire an audio data packet and determine an operating mode of the audio power amplifier system; the operating mode includes a first operating mode or a second operating mode; the frequency response range of the first operating mode corresponds to the auditory frequency range, and the frequency response range of the second operating mode corresponds to the human voice frequency range; A processing module, configured to determine a frequency response range of the audio power amplifier system according to an operating mode of the audio power amplifier system; The playing module is used to control the audio power amplifier system to output the audio data packet according to the frequency response range of the audio power amplifier system.

9. A wireless communication terminal, characterized in that: The wireless communication terminal comprises a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, the audio signal output method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, wherein when the program is executed by a processor, the audio signal output method according to any one of claims 1 to 7 is implemented.

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