CN107506167A - Method for controlling volume, device and the storage medium and mobile terminal of mobile terminal - Google Patents

Abstract

The embodiment of the invention discloses a kind of method for controlling volume of mobile terminal, device and storage medium and mobile terminal.Methods described includes：Determine that mobile terminal is in setting and blocked in environment；The coverage extent information of shelter is obtained, the shelter blocks the object that the mobile terminal is blocked in environment for the setting；Audio broadcast sound volume is adjusted according to the coverage extent information.Technical scheme provided in an embodiment of the present invention, the problems such as avoiding mobile terminal too small in audio broadcast sound volume when blocking in environment and causing user's missed telephone or information, the broadcast sound volume of mobile terminal can be reasonably controlled according to coverage extent in the case where mobile terminal is in and is blocked.

Description

Volume control method, device and storage medium of mobile terminal and mobile terminal

technical field

The embodiments of the present invention relate to the technical field of playback control, and in particular, to a volume control method and device for a mobile terminal, a storage medium, and a mobile terminal.

Background technique

There are more and more functions in mobile terminals such as mobile phones, which provide convenience for people's life and work. People can use mobile phones to make and receive calls, listen to music, watch videos, play games, etc. When the user performs these operations, the audio playback control system of the mobile terminal controls the audio of these applications to play. However, there are defects in the method for controlling the volume of audio playback in the related art and need to be improved.

Contents of the invention

Embodiments of the present invention provide a volume control method and device for a mobile terminal, a storage medium, and a mobile terminal, which can reasonably control the playback volume of the mobile terminal when the mobile terminal is blocked.

In a first aspect, an embodiment of the present invention provides a volume control method for a mobile terminal, including:

Determine that the mobile terminal is in a set occlusion environment;

Obtaining occlusion degree information of an occluder, where the occluder is an object that occludes the mobile terminal in the set occlusion environment;

Adjust audio playback volume according to the occlusion degree information.

In a second aspect, an embodiment of the present invention provides a volume control device for a mobile terminal, including:

An occlusion state determination module, configured to determine that the mobile terminal is in a set occlusion environment;

An occlusion degree information acquisition module, configured to acquire occlusion degree information of an occluder, where the occluder is an object that occludes the mobile terminal in the set occlusion environment;

The audio playback volume adjustment module is configured to adjust the audio playback volume according to the occlusion degree information.

In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the volume control method for a mobile terminal as provided in the first aspect is implemented.

In a fourth aspect, an embodiment of the present invention provides a mobile terminal, including a memory, a processor, and a computer program stored in the memory and operable on the processor. A volume control method for a mobile terminal.

In a fifth aspect, an embodiment of the present invention provides a mobile terminal, including: a proximity sensor for collecting the distance between the mobile terminal and an obstruction; an acceleration sensor for collecting the motion state of the mobile terminal; and/or ambient light The sensor is used to collect the ambient light brightness of the mobile terminal; the memory is used to store the distance and the motion state, and/or the distance and the ambient light brightness; the processor is used to store the distance and the ambient light brightness according to the distance and the The motion state, and/or, the distance and the brightness of the environment, determine that the mobile terminal is in a set occlusion environment; acquire occlusion degree information of an occluder, and the occluder is the set occlusion environment An object that blocks the mobile terminal; adjust the audio playback volume according to the blockage degree information.

In the embodiment of the present invention, by determining that the mobile terminal is in the set occlusion environment, the occlusion degree information of the occluder is obtained. Audio playback volume, which can reasonably control the playback volume of the mobile terminal when the mobile terminal is blocked.

Description of drawings

Figure 1a is a block diagram of an audio system architecture provided by an embodiment of the present invention;

Fig. 1b is a schematic structural diagram of an audio processing hardware system of a smart phone provided by an embodiment of the present invention;

FIG. 2 is a flow chart of a volume control method for a mobile terminal provided by an embodiment of the present invention;

FIG. 3 is a flow chart of another volume control method for a mobile terminal provided by an embodiment of the present invention;

FIG. 4 is a flowchart of another volume control method for a mobile terminal provided by an embodiment of the present invention;

FIG. 5 is a flow chart of another volume control method for a mobile terminal provided by an embodiment of the present invention;

FIG. 6 is a flow chart of another volume control method for a mobile terminal provided by an embodiment of the present invention;

FIG. 7 is a flow chart of another volume control method for a mobile terminal provided by an embodiment of the present invention;

8 is a schematic structural diagram of a volume control device for a mobile terminal provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe various operations (or steps) as sequential processing, many of the operations may be performed in parallel, concurrently, or simultaneously. In addition, the order of operations can be rearranged. The process may be terminated when its operations are complete, but may also have additional steps not included in the figure. The processing may correspond to a method, function, procedure, subroutine, subroutine, or the like.

For ease of understanding, the Android system is taken as an example below to briefly describe the audio system architecture in the Android system.

As shown in Fig. 1a, the audio system architecture provided by this embodiment mainly includes user space, kernel space and hardware system. User space includes application (Application) layer, application framework (Framework) layer and hardware abstraction layer (Hardware Abstraction Layer, HAL), kernel space includes driver (Driver) layer, and hardware system includes speakers, audio codecs, etc. The application layer is the top layer of the audio system, and an application program can be written to perform corresponding logical operations, such as pre-setting the occlusion environment including the environment where the speaker is occluded, and setting the distance between the mobile terminal and the occlusion in the occlusion environment. Set the range, issue volume adjustment commands, etc. The application framework layer includes an audio control interface and a standardized plug-in module responsible for providing an interface for obtaining audio attribute information, audio playback status, and a speaker volume control interface. The application framework layer provides two classes, AudioTrack and AudioRecorder, as well as AudioManager, AudioService and AudioSystem classes. A system runtime (Libraries) layer is also included between the application framework layer and the hardware abstraction layer. We know that many classes in the framework layer are actually just "intermediaries" for applications to use Android library files. Because upper-layer applications are written in java language, they need the most direct support of java interface, which is one of the meanings of the framework layer. As "intermediaries", they don't really implement specific functions, or only implement part of them, but focus on the library to complete. For example, the above AudioTrack, AudioRecorder, MediaPlayer and MediaRecorder, etc. can find corresponding classes in the library. This part of the code is centrally placed in the frameworks/av/media/libmedia of the project, most of which are written in C++ language. The audio hardware abstraction layer is mainly divided into two parts, namely AudioFlinger and AudioPolicyService. In fact, the latter is not a real device, but a virtual device is used to allow manufacturers to easily customize their own policies. According to different products, there are great differences in audio devices. In the Android audio architecture, these problems are solved by the audio.primary of the HAL layer, without the need to modify the upper layer implementation on a large scale. The hardware abstraction layer is the transition from the application framework layer to the driver layer to achieve the compatibility of the underlying hardware. The driver layer controls the audio codec according to its characteristics, ensures that the audio codec can work normally, and provides the audio data obtained by the audio codec to the system layer. The hardware system includes a speaker and an audio codec. The speaker is used to play audio data to control the volume. The audio codec is used to analyze the format of the audio data, such as MP3 and WMA. It is responsible for the normal playback of the audio and not noise.

Fig. 1b is a schematic structural diagram of an audio processing hardware system of a smartphone provided by an embodiment of the present invention. The audio processing circuit is generally located in the main control circuit board. Due to the different designs of different mobile phones, the specific location of the audio processing circuit may also be different. The audio processing circuit of a smart phone mainly includes an audio signal processing circuit, a baseband signal processing circuit, an audio power amplifier, an earphone signal amplifier, an earpiece, a speaker, a microphone, and an earphone jack, etc. Among them, the audio signal processing circuit is the core of the entire audio processing circuit. The audio processing circuit is mainly composed of receiving audio circuit, sending circuit, earphone call circuit, etc., including analog/digital (A/D) conversion of analog audio, digital/analog (A/D) conversion, digital voice signal processing and analog audio amplifier circuit, etc.

During a call, the microphone at the local end of the call first converts the mechanical sound wave signal of the sound into an analog audio signal, amplifies it through an analog audio amplifier circuit, and performs A/D conversion through an internal multi-mode converter to obtain a digital audio signal; The digital audio signal is sent to the baseband processor for processing such as speech coding and channel coding; it is then processed again for encryption and interleaving; finally it is sent to the digital narrowband modulation module in the baseband processor for modulation to generate the baseband signal for transmission and send it to the The radio frequency circuit modulates to transmit the intermediate frequency and sends it to the other party. When answering the phone, first demodulate the received baseband information from the radio frequency circuit, send it to the baseband processor for digital narrowband demodulation, and separate the control signal and voice signal; secondly, decrypt, deinterleave, and recombine the voice signal. After processing, channel decoding and voice decoding are performed; finally the pure digital voice signal is obtained, which is sent to the multi-mode converter in the voice signal processor for D/A conversion; after being restored to an analog audio signal, the earpiece is pushed to make a sound after the audio power is amplified . If the hands-free receiver is selected, the baseband processor closes the earpiece receiver amplifier, starts the hands-free receiver amplifier tube (ringing amplifier tube) to work, amplifies the audio signal power and promotes the loudspeaker to sound.

When recording, similar to the above process, the mechanical sound wave signal of the sound is first converted into an analog audio signal by the microphone, amplified by an analog audio amplifier circuit, and a digital audio signal is obtained after A/D conversion, which is performed according to the preset audio format. encoding and storage. When playing recordings or other audio files, the audio files are decoded to obtain digital audio signals, which are restored to analog audio signals after D/A conversion, and the power of the audio signals is amplified to drive the speaker to produce sound.

In the embodiment of the present invention, a preset audio file may be stored in the terminal in advance, and the preset audio file may be played. The pre-stored audio files and preset volume levels can be selected by the designer according to the actual situation, and the preset audio files and/or preset volume levels corresponding to different sound playback devices can be different, which is not limited in the embodiment of the present invention. The audio signal collected by the microphone can be the above-mentioned analog audio signal converted from the mechanical sound wave signal, or an amplified analog audio signal. The corresponding preset conditions below can be set according to the difference between the two. The embodiments of the invention are not limited. In order to facilitate the interaction between the terminal and the user, the terminal generally provides the user with a volume adjustment function. The user can adjust the volume level of the sound played by the terminal by adjusting the volume adjustment button or the volume adjustment progress bar. The volume level of the audio signal to be played is amplified accordingly, such as power amplification, to meet the listening needs of the user. Different terminals may have different strategies for dividing volume levels, that is, the total number of specific volume levels and the volume corresponding to each volume level may be different, which is not limited in this embodiment of the present invention.

Figure 2 shows a flow chart of a volume control method for a mobile terminal provided by an embodiment of the present invention. The method of this embodiment can be executed by a volume control device for a mobile terminal, and the device can be implemented by means of hardware and/or software. To achieve, the device can be set inside the mobile terminal as a part of the mobile terminal.

As shown in Figure 2, the volume control method of the mobile terminal provided by this embodiment includes the following steps:

Step 101. Determine that the mobile terminal is in a set occlusion environment.

The mobile terminals provided by the embodiments of the present invention include but are not limited to devices such as smart phones, notebooks, or tablet computers.

During the use of the mobile terminal, the mobile terminal may be blocked by other objects, for example, the mobile terminal of the mobile phone is put in a pocket or placed in sundries. This step is used to determine that the mobile terminal is in a set occlusion environment. The set shielding environment is a preset shielding environment that satisfies the shielding condition of the loudspeaker, such as being put into a pocket or placed in sundries as mentioned above.

Step 102. Obtain information on the degree of occlusion of an occluder, where the occluder is an object that blocks the mobile terminal in the set occlusion environment.

When the occlusion environment where the mobile terminal is located is different, the occlusion degree of the occluder to the mobile terminal is different. The determinants of the occlusion environment include the distance between the occluder and the mobile terminal, the material and thickness of the occluder, etc., that is, the degree of occlusion is related to the distance between the occluder and the mobile terminal, and the material and thickness of the occluder.

Step 103. Adjust the audio playback volume according to the occlusion degree information.

The audio playback volume may be adjusted according to the occlusion degree information of the occluder, and this step may include: obtaining a preset correspondence table between the occlusion degree and the audio playback volume, and determining the corresponding to the occlusion degree information according to the preset correspondence table. Volume adjustment value; increase the current audio playback volume by the volume adjustment value as the adjusted audio playback volume. When the degree of occlusion is large, a larger volume adjustment value can be determined according to the preset correspondence table, and when the degree of occlusion is small, a smaller volume adjustment value can be determined according to the preset correspondence table.

Wherein, the acquiring the preset correspondence table between the occlusion degree and the audio playback volume, and determining the volume adjustment value corresponding to the occlusion degree information according to the preset correspondence table may include: determining the current default playback volume of the mobile terminal; Acquiring a preset correspondence table between occlusion degree and audio playback volume, and determining a volume adjustment value corresponding to the occlusion degree information according to the current default playback volume and the preset correspondence table. When the current default playback volume is low, a relatively large volume adjustment value may be determined, and when the current default playback volume is high, a relatively small volume adjustment value may be determined. Exemplarily, if the degree of occlusion A<the degree of occlusion B<the degree of occlusion C, the maximum playback volume is 10, and the current default playback volume is 2, then when the occlusion degree is C, the volume adjustment value can be determined to be 4 according to the preset correspondence table , that is, the adjusted playback volume is 6; and if the current playback volume is 4, then when the degree of occlusion is C, the volume adjustment value can be determined to be 3 according to the preset correspondence table, that is, the adjusted playback volume is 7; and If the current playback volume is 2, then when the occlusion degree is B, the volume adjustment value can be determined to be 3 according to the preset correspondence table, that is, the adjusted playback volume is 5; and if the current playback volume is 4, the occlusion degree When it is B, the volume adjustment value can be determined to be 2 according to the preset correspondence table, that is, the adjusted playback volume is 6.

The volume control method of the mobile terminal provided in this embodiment obtains information on the degree of occlusion of an occluder by determining that the mobile terminal is in a set occlusion environment, and the occluder is an object that blocks the mobile terminal in the set occlusion environment , adjust the audio playback volume according to the occlusion degree information to avoid problems such as the audio playback volume being too low when the mobile terminal is in an occlusion environment and causing the user to miss calls or messages. Control the playback volume of the mobile terminal.

On the basis of the above embodiments, it may be determined that the mobile terminal is in a set occlusion environment when an audio playback event is detected, or it may be determined that the mobile terminal is in a set occlusion environment by periodically detecting the environment in which the mobile terminal is located. Environment.

FIG. 3 shows a flow chart of another volume control method for a mobile terminal provided by an embodiment of the present invention. As shown in Figure 3, the method provided in this embodiment includes the following steps:

Step 201. Acquire the distance between the mobile terminal and an obstruction through the proximity sensor of the mobile terminal.

Wherein, the distance between the proximity sensor and the speaker of the mobile terminal is less than the first set distance, the reason for this setting is that the mobile terminal can determine the occlusion detection result acquired according to the proximity sensor as the occlusion detection result of the speaker . The first set distance may be 0cm-2cm, excluding 0cm. Generally, the speaker of the mobile terminal is arranged at the bottom of the mobile terminal, and the proximity sensor can be arranged at the bottom of the mobile terminal at a position 0cm-2cm close to the speaker.

Step 202, acquire the motion state of the mobile terminal through the acceleration sensor of the mobile terminal.

The state of motion may include a state of rest and a state of motion.

Step 203 , judging whether the distance is within the first set range and whether the motion state is a static state, if yes, execute step 204 , otherwise skip to step 201 or step 202 . Wherein, the first setting range is a preset distance range, such as 0-0.5m. Exemplarily, when the mobile terminal is attached to the shield, the distance between them is 0m, and when the mobile terminal is placed in a sealed space such as a drawer, the distance between the proximity sensor or speaker at the bottom of the mobile terminal and the drawer is 5cm.

Step 204, determining that the mobile terminal is in a set occlusion environment.

If the user is using the mobile terminal, the acceleration sensor can detect that the mobile terminal is in motion. When the mobile terminal is in motion, even if the proximity sensor detects that the distance between the mobile terminal and the obstruction is within the first set range, it is not sure. The mobile terminal is in a set occlusion environment. The reason for this setting is to avoid misadjustment of the volume. For example, in the scene where the user answers the phone, the distance between the proximity sensor close to the user's face and the occluder of the face is within the first set range, but the mobile terminal is not actually In a set occlusion environment. However, when the mobile terminal is placed in sundries or other set blocking environments, the mobile terminal is still. Therefore, the motion state of the mobile terminal is acquired through the acceleration sensor, and it is determined that the mobile terminal is in a set occlusion environment when the distance is within the first set range and in the motion state.

When the proximity sensor is combined with the acceleration sensor to determine that the distance between the mobile terminal and the occluder is within the first set range and the motion state of the mobile terminal is in a static state, it can be determined that the proximity sensor of the mobile terminal is in the set occlusion environment. The sensors are near the speaker, and the distance between them is less than the first set distance, then it can be determined that the speaker is also in the set occlusion environment when the proximity sensor is in the set occlusion environment.

Step 205. Obtain information on the degree of occlusion of an occluder, where the occluder is an object that blocks the mobile terminal in the set occlusion environment.

Step 206. Adjust the audio playback volume according to the occlusion degree information.

Wherein, the execution order of step 201 and step 202 can be exchanged.

In the method provided in this embodiment, the distance between the mobile terminal and the obstruction is obtained through the proximity sensor of the mobile terminal, and the motion state of the mobile terminal is obtained through the acceleration sensor of the mobile terminal. When it is detected that the distance is within the first set range and the When the moving state is a static state, it is determined that the mobile terminal is in a set occlusion environment, and the audio playback volume is adjusted according to the occlusion program information of the occlusion object, so that the movement can be reasonably controlled according to the occlusion degree when the mobile terminal is in the occlusion condition The playback volume of the terminal, and can accurately determine that the mobile terminal is in the set occlusion environment.

FIG. 4 shows a flow chart of another volume control method for a mobile terminal provided by an embodiment of the present invention. As shown in Figure 4, the method provided in this embodiment includes the following steps:

Step 301. Obtain the distance of the obstruction of the mobile terminal through the proximity sensor of the mobile terminal.

Step 302, acquire the ambient light brightness of the mobile terminal through the ambient light sensor of the mobile terminal.

Wherein, the distance between the ambient light sensor and the speaker of the mobile terminal is smaller than the second set distance, the reason for this setting is that the mobile terminal can determine the occlusion detection result obtained according to the ambient light sensor as the occlusion of the speaker Test results. The second set distance may be 0cm-2cm, excluding 0cm. Generally, the speaker of the mobile terminal is arranged at the bottom of the mobile terminal, so the ambient light sensor can be arranged at the bottom of the mobile terminal at a position of 0cm-2cm close to the speaker.

Wherein, the obtaining the ambient light brightness of the mobile terminal may be obtaining an average value of the ambient light brightness within a set period of time. The reason for this setting is: to determine whether the mobile terminal is in the set occlusion environment according to the ambient light brightness for a period of time rather than the ambient light brightness for an instant or a short period of time, which can avoid the ambient light brightness meeting less than Setting the brightness leads to misjudgment that the mobile terminal is in the set blocking environment.

Step 303 , judging whether the distance is within the second set range and whether the ambient light brightness is lower than the set light brightness, if yes, execute step 304 , otherwise skip to step 301 or step 302 . Wherein, the second setting range is a preset distance range, such as 0-0.5m.

Step 304, determining that the mobile terminal is in a set occlusion environment.

When the distance is within a second set range and the ambient light brightness is less than a set light brightness, it is determined that the mobile terminal is in a set blocking environment. Generally, when the mobile terminal is blocked, the ambient light brightness is relatively dark, if the average value of the ambient light brightness within the set time period is less than the set light brightness, and the distance is within the second set range, then determine The mobile terminal is in a set occlusion environment.

Step 305. Obtain information on the degree of occlusion of the occluder, where the occluder is an object that blocks the mobile terminal in the set occlusion environment.

Step 306. Adjust the audio playback volume according to the occlusion degree information.

In the method provided in this embodiment, the distance between the mobile terminal and the occluder is acquired through the proximity sensor of the mobile terminal, and the motion state of the mobile terminal is acquired through the ambient light sensor of the mobile terminal. When it is detected that the distance is within the second set range and When the ambient light brightness is less than the set light brightness, it is determined that the mobile terminal is in the set occlusion environment, and the audio playback volume is adjusted according to the occlusion program information of the occluder. Reasonably control the playback volume of the mobile terminal, and accurately determine that the mobile terminal is in a set occlusion environment.

FIG. 5 shows a flow chart of another volume control method for a mobile terminal provided by an embodiment of the present invention. As shown in Figure 5, the volume control method of the mobile terminal provided by this embodiment includes the following steps:

Step 401. Determine that the mobile terminal is in a set occlusion environment.

Wherein, the method for determining that the mobile terminal is in a set occlusion environment may be as provided in the above-mentioned embodiments, and specific implementation details may refer to the above-mentioned contents.

Step 402: Transmit ultrasonic waves to the barrier through the ultrasonic sensor transmitter of the mobile terminal.

Wherein, the ultrasonic emitter can be arranged at a position close to the speaker, for example, if the speaker is arranged at the bottom of the mobile terminal, the ultrasonic emitter can be arranged at a position 0-2 cm (not including 0 cm) from the bottom of the mobile terminal close to the speaker.

Step 403 , according to the intensity of the reflected ultrasonic wave received by the ultrasonic sensor receiver, and the time difference between transmitting the ultrasonic wave and receiving the reflected ultrasonic wave, determine the blocking degree information of the obstruction.

Wherein, the greater the intensity of the reflected ultrasonic waves, the smaller the blocking degree of the blocking object; the longer the time difference, it indicates that the blocking object is less likely to penetrate, for example, the thicker the blocking object, the greater the blocking degree. big.

In a certain implementation manner, the speaker of the mobile terminal may be used as an ultrasonic transmitter to emit ultrasonic waves to the barrier, and the microphone of the mobile terminal may be used as an ultrasonic receiver to receive the reflected ultrasonic waves.

Step 404. Adjust audio playback volume according to the occlusion degree information.

In the method provided by this embodiment, the ultrasonic sensor integrated in the mobile terminal itself acquires the occlusion degree information of the occlusion object in the occlusion environment, and can accurately and quickly adjust the audio playback volume according to the occlusion degree.

FIG. 6 shows a flow chart of another volume control method for a mobile terminal provided by an embodiment of the present invention. As shown in FIG. 6, the volume control method of the mobile terminal provided in this embodiment includes the following steps:

Step 501. Determine that the mobile terminal is in a set occlusion environment.

Step 502 , judging whether the distance between the occluder and the mobile terminal is less than a second set distance, if yes, execute step 503 , otherwise return to execute step 502 .

Step 503, controlling the vibration motor of the mobile terminal to generate vibration at a set frequency.

When the distance between the shield and the mobile terminal is less than the second set distance, the material of the shield can be detected by controlling the motor of the mobile terminal to generate vibration. Wherein, the value range of the second set distance may be 0cm-1cm.

Step 504, acquire the acceleration sampling value generated by the vibration through the acceleration sensor of the mobile terminal, and/or acquire the sound sampling value generated by the vibration through the sound sensor of the mobile terminal.

Wherein, the acquisition of the acceleration sampling value generated by the vibration through the acceleration sensor of the mobile terminal may include: setting the acceleration value sampling time, and acquiring the acceleration sampling value generated by the vibration within the acceleration value sampling time through the acceleration sensor of the mobile terminal value. The acceleration value sampling time can be set to 5 seconds.

The acquisition of the sound sampling value generated by the vibration through the sound sensor of the mobile terminal may include: collecting the sound generated by the mobile terminal colliding with an obstacle when the mobile terminal vibrates through the sound sensor of the mobile terminal. The sound sensor can be replaced by a microphone of the mobile terminal.

Step 505: Determine the material type of the occluder according to the acceleration sampling value and/or the sound sampling value.

Wherein, the determining the material type of the barrier according to the acceleration sampling value may include: performing frequency spectrum analysis on the acceleration sampling value, and determining the material type of the barrier according to the analysis result. The frequency spectrum analysis of the acceleration sampling value may include: performing fast Fourier transform on the acceleration sampling value, converting the time domain sampling value into a frequency domain sampling value, and performing spectrum characteristic analysis. According to the analysis results, the type of medium material to which the occluder belongs can be determined.

The determining the material type of the barrier according to the sound sampling value may include: analyzing the sound spectrum of the sound generated by the collision, and determining the type of the medium material of the barrier according to the analysis result.

In addition, the acceleration sampling value generated by the vibration can also be obtained first through the acceleration sensor, and the degree of softness and hardness of the medium material to which the obstruction belongs is determined according to the acceleration sampling value. For example, by performing frequency spectrum analysis on the acceleration sampling value, the obstruction can be determined. Hard materials such as wooden desks and stones, or soft materials such as clothing and bags; then the sound sampling value generated by the vibration is obtained through the sound sensor, and the medium materials with similar hardness and softness are distinguished according to the sound sampling value, for example, By analyzing the sound spectrum, it can be determined whether the material of the occluder is a wooden desk or a stone.

When the occluder is clothing, the envelope curve and frequency shock response of the acceleration frequency domain analysis diagram are stronger than those of wood or stone. For the low frequency stage, it can be found that the frequency value on the soft dielectric material tends to 0, while the frequency value on the hard dielectric material always has a non-zero value. In this way, the difference between clothes, wooden desks and stones can be distinguished through the frequency; the sound of vibration is collected through the sound sensor of the mobile terminal, and the sound spectrum analysis is performed on the audio. It can be known that when the obstruction is made of stone The frequency impact response is stronger than that of wooden materials. When the sound vibration frequency is about 200Hz, the audio amplitude on the surface of wooden materials is smaller than that of stone materials. Therefore, wood materials and stone materials can be distinguished by setting the frequency threshold.

Step 506: Determine the occlusion degree information of the occluder according to the material type of the occluder.

Exemplarily, when the material of the occluder is stone, the degree of occlusion of the occluder can be determined to be a; when the material of the occluder is a wooden desk, the degree of occlusion of the occluder can be determined to be b; When the material is clothing, the occlusion degree of the occlusion object can be determined as c, wherein the occlusion degree a>occlusion degree b>occlusion degree c.

Step 507. Adjust the audio playback volume according to the occlusion degree information.

Exemplarily, the volume adjustment value a' can be determined according to the occlusion degree a', the volume adjustment value b' can be determined according to the occlusion degree b, and the volume adjustment value c' can be determined according to the occlusion degree c', wherein the volume adjustment value a' > volume adjustment value b` > volume adjustment value c`.

In the method provided in this embodiment, after determining that the mobile terminal is in a set occlusion environment, when the distance between the occluder and the mobile terminal is less than the second set distance, the vibration motor of the mobile terminal is controlled to generate vibration at a set frequency, and the acceleration The sensor acquires the acceleration sampling value generated by the vibration and/or the sound sensor acquires the sound sampling value generated by the vibration, and according to the acceleration sampling value and/or the sound sampling value, the material type of the barrier is determined, According to the material type of the occluder, determine the occlusion degree information of the occluder, adjust the audio playback volume according to the occlusion degree information, can accurately obtain the material to which the occluder belongs and then determine the occlusion degree information of the occluder, according to the occlusion The level information reasonably controls the playback volume of the mobile terminal.

FIG. 7 shows a flow chart of another volume control method for a mobile terminal provided by an embodiment of the present invention. As shown in FIG. 7, the volume control method of the mobile terminal provided in this embodiment includes the following steps:

Step 601. Obtain the distance between the mobile terminal and the obstruction through the proximity sensor of the mobile terminal.

Step 602, acquire the motion state of the mobile terminal through the acceleration sensor of the mobile terminal.

Step 603 , judging whether the distance is within the first set range and whether the motion state is a static state, if yes, execute step 604 , otherwise skip to step 601 or step 602 .

Step 604. Determine that the mobile terminal is in a set occlusion environment.

Step 605: Transmit ultrasonic waves to the barrier through the ultrasonic sensor transmitter of the mobile terminal.

Step 606 , according to the intensity of the reflected ultrasonic wave received by the ultrasonic sensor receiver, and the time difference between transmitting the ultrasonic wave and receiving the reflected ultrasonic wave, determine the blocking degree information of the obstruction.

Step 607. Adjust audio playback volume according to the occlusion degree information.

The method provided in this embodiment determines that the mobile terminal is in the set state when the distance between the mobile terminal and the obstruction obtained by the proximity sensor is within the first set range and the motion state of the mobile terminal obtained by the acceleration sensor is in a static state. In an occlusion environment, use the ultrasonic sensor of the mobile terminal to obtain the occlusion degree information of the occlusion object, adjust the audio playback volume according to the occlusion degree information, and reasonably control the playback volume of the mobile terminal according to the occlusion degree when the mobile terminal is blocked .

FIG. 8 is a schematic structural diagram of a volume control device for a mobile terminal provided by an embodiment of the present invention. The device can be implemented by software and/or hardware and integrated in the mobile terminal. As shown in FIG. 8 , the device includes an occlusion environment determination module 71 , an occlusion degree information acquisition module 72 and an audio playback volume adjustment module 73 .

The occlusion environment determination module 71 is used to determine that the mobile terminal is in a set occlusion environment;

The occlusion degree information acquisition module 72 is configured to acquire occlusion degree information of an occluder, where the occluder is an object that blocks the mobile terminal in the set occlusion environment;

The audio playback volume adjustment module 73 is configured to adjust the audio playback volume according to the occlusion degree information.

The device provided in this embodiment obtains information on the degree of occlusion of an occluder by determining that the mobile terminal is in a set occlusion environment. The occluder is an object that blocks the mobile terminal in the set occlusion environment. According to the occlusion The degree information adjusts the audio playback volume, and the playback volume of the mobile terminal can be reasonably controlled according to the degree of occlusion when the mobile terminal is blocked.

On the basis of the above embodiments, the occlusion environment determination module is specifically used for:

Obtaining the distance between the mobile terminal and the occluder through the proximity sensor of the mobile terminal;

Obtaining the motion state of the mobile terminal through an acceleration sensor of the mobile terminal;

According to the distance and the motion state, it is determined that the mobile terminal is in a set occlusion environment.

On the basis of the above embodiments, the occlusion environment determination module determines that the mobile terminal is in a set occlusion environment according to the distance and the motion state includes:

When it is detected that the distance is within a set range and the motion state is a static state, it is determined that the mobile terminal is in a set occlusion environment.

On the basis of the above-mentioned embodiments, the acquisition module of the occlusion degree information acquiring the occlusion degree information of the occluder includes:

Transmit ultrasonic waves to the obstruction through the ultrasonic sensor transmitter of the mobile terminal;

According to the intensity of the reflected ultrasonic waves received by the receiver of the ultrasonic sensor, and the time difference between transmitting the ultrasonic waves and receiving the reflected ultrasonic waves, the blocking degree information of the obstruction is determined.

On the basis of the above embodiments, the distance between the proximity sensor and the speaker of the mobile terminal is smaller than a first set distance, so that the mobile terminal determines the occlusion detection result of the proximity sensor as the occlusion detection result of the speaker.

On the basis of the above embodiments, the occlusion degree information acquisition module is specifically used for:

When the distance between the shield and the mobile terminal is less than a second set distance, controlling the vibration motor of the mobile terminal to generate vibration at a set frequency;

Obtain the acceleration sampling value generated by the vibration through the acceleration sensor of the mobile terminal, and/or obtain the sound sampling value generated by the vibration through the sound sensor of the mobile terminal;

determining the material type of the occluder according to the acceleration sampling value and/or the sound sampling value;

Determine the occlusion degree information of the occluder according to the material type of the occluder.

On the basis of the foregoing embodiments, the audio playback volume adjustment module is specifically used for:

Acquiring a preset correspondence table between occlusion degree and audio playback volume, and determining a volume adjustment value corresponding to the occlusion degree information according to the preset correspondence table;

The current audio playback volume is increased by the volume adjustment value as the adjusted audio playback volume.

An embodiment of the present invention also provides a storage medium containing computer-executable instructions, the computer-executable instructions are used to execute a volume control method of a mobile terminal when executed by a computer processor, the method comprising:

Determine that the mobile terminal is in a set occlusion environment;

Obtaining occlusion degree information of an occluder, where the occluder is an object that occludes the mobile terminal in the set occlusion environment;

Adjust audio playback volume according to the occlusion degree information.

storage medium - any of various types of memory devices or storage devices. The term "storage medium" is intended to include: installation media such as CD-ROMs, floppy disks or tape drives; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc. ; non-volatile memory, such as flash memory, magnetic media (eg hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. Also, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network such as the Internet. The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems connected by a network. The storage medium may store program instructions (eg embodied as computer programs) executable by one or more processors.

Of course, a storage medium containing computer-executable instructions provided by an embodiment of the present invention, the computer-executable instructions are not limited to the above-mentioned volume control operation, and can also perform the volume control operation of the mobile terminal provided by any embodiment of the present invention. Related operations in the control method.

An embodiment of the present invention provides a mobile terminal, and the mobile terminal may include the mobile terminal volume control device provided in any embodiment of the present invention. Fig. 9 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present invention. As shown in Fig. 9, the mobile terminal may include: a proximity sensor for collecting the distance between the mobile terminal and an obstacle; an acceleration sensor for collecting the distance between the mobile terminal The motion state of the terminal; and/or, an ambient light sensor for collecting ambient light brightness of the mobile terminal; a memory 801, a central processing unit (Central Processing Unit, CPU) 802 (also known as a processor, hereinafter referred to as CPU), the The memory 801 is configured to store executable program codes; the processor 802 executes a program corresponding to the executable program codes by reading the executable program codes stored in the memory 801, so as to execute: according to the The distance and the motion state, and/or, the distance and the brightness of the ambient light, determine that the mobile terminal is in a set occlusion environment; obtain the occlusion degree information of the occlusion, and the occlusion is the set An object blocking the mobile terminal in a fixed blocking environment; adjusting the audio playback volume according to the blocking degree information.

The mobile terminal may further include: an ultrasonic sensor transmitter, configured to transmit ultrasonic waves to an obstruction; an ultrasonic sensor receiver, configured to receive reflected ultrasonic waves; Intensity, as well as the time difference between the transmitted ultrasonic wave and the received reflected ultrasonic wave, determine the occlusion degree information of the occluder.

The mobile terminal also includes: a vibration motor, used to generate vibration at a set frequency when the distance between the shield and the mobile terminal is less than a third set distance; a sound sensor, used to collect sound samples generated by the vibration value; the acceleration sensor is also used to collect the acceleration sampling value generated by the vibration; the processor is also used to obtain the acceleration sampling value and/or the sound sampling value; according to the acceleration sampling value and /or the sound sampling value, determine the material type of the occluder; determine the occlusion degree information of the occluder according to the material type of the occluder.

The mobile terminal also includes: peripheral interface 803, RF (Radio Frequency, radio frequency) circuit 805, audio circuit 806, speaker 811, power management chip 808, input/output (I/O) subsystem 809, touch screen 812, other Input/control devices 810 and external ports 804 , these components communicate via one or more communication buses or signal lines 807 .

It should be understood that the illustrated mobile terminal 800 is only an example of a mobile terminal, and the mobile terminal 800 may have more or fewer components than those shown in the figure, and two or more components may be combined, Or can have a different component configuration. The various components shown in the figures may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.

The mobile terminal for volume control provided in this embodiment will be described in detail below, and the mobile terminal is a mobile phone as an example.

Memory 801, the memory 801 can be accessed by the CPU 802, the peripheral interface 803, etc., the memory 801 can include a high-speed random access memory, and can also include a non-volatile memory, such as one or more disk storage devices, flash memory devices , or other volatile solid-state storage devices.

Peripheral interface 803 , which can connect the input and output peripherals of the device to CPU 502 and memory 801 .

The I/O subsystem 809 , the I/O subsystem 809 can connect input and output peripherals on the device, such as a touch screen 812 and other input/control devices 810 , to the peripheral interface 803 . I/O subsystem 809 may include a display controller 8091 and one or more input controllers 8092 for controlling other input/control devices 810 . Among them, one or more input controllers 8092 receive electrical signals from or send electrical signals to other input/control devices 810, which may include physical buttons (push buttons, rocker buttons, etc.) ), dials, slide switches, joysticks, click wheels. It is worth noting that the input controller 8092 can be connected to any of the following: a keyboard, an infrared port, a USB interface, and a pointing device such as a mouse.

A touch screen 812. The touch screen 812 is an input interface and an output interface between the user terminal and the user, and displays visual output to the user. The visual output may include graphics, text, icons, videos, and the like.

The display controller 8091 in the I/O subsystem 809 receives electrical signals from the touch screen 812 or sends electrical signals to the touch screen 812 . The touch screen 812 detects the contact on the touch screen, and the display controller 8091 converts the detected contact into an interaction with the user interface object displayed on the touch screen 812, that is, realizes human-computer interaction, and the user interface object displayed on the touch screen 812 can be a running Icons for games, icons for networking to appropriate networks, etc. It is worth noting that the device may also include an optical mouse, which is a touch-sensitive surface that does not display visual output, or that is an extension of a touch-sensitive surface formed by a touch screen.

The RF circuit 805 is mainly used to establish communication between the mobile phone and the wireless network (that is, the network side), and realize data reception and transmission between the mobile phone and the wireless network. Such as sending and receiving short messages, e-mails, etc. Specifically, the RF circuit 805 receives and sends RF signals, which are also called electromagnetic signals, and the RF circuit 805 converts electrical signals into electromagnetic signals or converts electromagnetic signals into electrical signals, and communicates with communication networks and other devices through the electromagnetic signals to communicate. RF circuitry 805 may include known circuitry for performing these functions including, but not limited to, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC ( COder-DECoder, Codec) Chipset, Subscriber Identity Module (Subscriber Identity Module, SIM) and so on.

The audio circuit 806 is mainly used to receive audio data from the peripheral interface 803 , convert the audio data into electrical signals, and send the electrical signals to the speaker 811 .

The speaker 811 is used to restore the voice signal received by the mobile phone from the wireless network through the RF circuit 805 into sound and play the sound to the user.

The power management chip 808 is used for power supply and power management for the hardware connected to the CPU 802 , the I/O subsystem and the peripheral interface 803 .

The above-mentioned mobile terminal can execute the method provided by any embodiment of the present invention, and has a corresponding functional module for executing the method. The mobile terminal provided by the embodiment of the present invention obtains the occlusion degree information of the occlusion by determining that the mobile terminal is in a set occlusion environment , the occluder is an object that occludes the mobile terminal in the set occlusion environment, the audio playback volume is adjusted according to the occlusion degree information, and the mobile terminal can be reasonably controlled according to the occlusion degree when the mobile terminal is blocked playback volume.

The foregoing are only preferred embodiments of the present invention and the applied technical principles. The present invention is not limited to the specific embodiments described here, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not depart from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the claims.

Claims (14)

1. A kind of 1. method for controlling volume of mobile terminal, it is characterised in that including：

   Determine that mobile terminal is in setting and blocked in environment；

   The coverage extent information of shelter is obtained, the shelter blocks for the setting and the mobile terminal is blocked in environment Object；

   Audio broadcast sound volume is adjusted according to the coverage extent information.
2. 2. according to the method for claim 1, it is characterised in that the determination mobile terminal, which is in setting and blocked in environment, to be wrapped Include：

   The distance of the mobile terminal and shelter is obtained by the proximity transducer of mobile terminal；

   The motion state of the mobile terminal is obtained by the acceleration transducer of mobile terminal；

   If the distance is detected in the first setting range and the motion state is inactive state, it is determined that described mobile whole Blocked in setting in environment at end.
3. 3. according to the method for claim 1, it is characterised in that the determination mobile terminal, which is in setting and blocked in environment, to be wrapped Include：

   The distance of the shelter of the mobile terminal is obtained by the proximity transducer of mobile terminal；

   The environmental light brightness of the mobile terminal is obtained by the ambient light sensor of mobile terminal；

   If the distance is detected in the second setting range and the environmental light brightness is less than setting brightness, it is determined that described Mobile terminal is in setting and blocked in environment.
4. 4. according to the method for claim 1, it is characterised in that the coverage extent information for obtaining shelter includes：

   Ultrasonic wave is launched to shelter by the ultrasonic sensor transmitter of mobile terminal；

   The intensity of the ultrasonic wave reflected, and transmitting ultrasonic wave are received according to ultrasonic sensor receiver with receiving The time difference of the ultrasonic wave reflected, determine the coverage extent information of shelter.
5. 5. according to the method for claim 2, it is characterised in that the loudspeaker of the proximity transducer and mobile terminal away from From less than the first setpoint distance, so that the occlusion detection result obtained according to the proximity transducer is defined as institute by mobile terminal State the occlusion detection result of loudspeaker.
6. 6. according to the method for claim 3, it is characterised in that the loudspeaker of the ambient light sensor and mobile terminal Distance is less than the second setpoint distance, so that mobile terminal determines the occlusion detection result obtained according to the ambient light sensor For the occlusion detection result of the loudspeaker.
7. 7. according to the method for claim 1, it is characterised in that the coverage extent information for obtaining shelter includes：

   When the distance of the shelter and mobile terminal is less than three setpoint distances, the vibrating motor of the mobile terminal is controlled Produce the vibration of setpoint frequency；

   Acceleration sampled value caused by the vibration is obtained by the acceleration transducer of mobile terminal, and/or, by mobile whole The sound transducer at end obtains sampled voice value caused by the vibration；

   According to the acceleration sampled value and/or the sampled voice value, the material type of the shelter is determined；

   According to the material type of the shelter, the coverage extent information of the shelter is determined.
8. 8. according to the method described in claim any one of 1-7, it is characterised in that described to be adjusted according to the coverage extent information Audio broadcast sound volume includes：

   The default mapping table of coverage extent and audio broadcast sound volume is obtained, according to the default mapping table determination and institute State volume adjustment value corresponding to coverage extent information；

   Present video broadcast sound volume is increased into the volume adjustment value, as the audio broadcast sound volume after adjustment.
9. A kind of 9. sound volume control device of mobile terminal, it is characterised in that including：

   Environment determination module is blocked, is blocked for determining that mobile terminal is in setting in environment；

   Coverage extent data obtaining module, for obtaining the coverage extent information of shelter, the shelter hides for the setting The object of the mobile terminal is blocked in baffle ring border；

   Audio broadcast sound volume adjusting module, for adjusting audio broadcast sound volume according to the coverage extent information.
10. 10. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the program is by processor The method for controlling volume of the mobile terminal as described in any in claim 1-8 is realized during execution.
11. 11. a kind of mobile terminal, including memory, processor and storage are on a memory and the calculating that can run on a processor Machine program, it is characterised in that realized described in the computing device during computer program as described in any in claim 1-8 The method for controlling volume of mobile terminal.
12. A kind of 12. mobile terminal, it is characterised in that including：

    Proximity transducer, for gathering the distance of mobile terminal and shelter；

    Acceleration transducer, for gathering the motion state of mobile terminal；And/or ambient light sensor, it is mobile whole for gathering The environmental light brightness at end；

    Memory, for storing the distance and the motion state, and/or, the distance and the environmental light brightness；

    Processor, for according to the distance and the motion state, and/or, the distance and the environmental light brightness, it is determined that The mobile terminal is in setting and blocked in environment；The coverage extent information of shelter is obtained, the shelter is the setting Block the object that the mobile terminal is blocked in environment；Audio broadcast sound volume is adjusted according to the coverage extent information.
13. 13. mobile terminal according to claim 12, it is characterised in that also include：

    Ultrasonic sensor transmitter, for launching ultrasonic wave to shelter；

    Ultrasonic sensor receiver, for receiving the ultrasonic wave reflected；

    The processor, the intensity of ultrasonic wave reflected according to, and transmitting ultrasonic wave are additionally operable to receiving instead The time difference of the ultrasonic wave come is emitted back towards, determines the coverage extent information of shelter.
14. 14. mobile terminal according to claim 12, it is characterised in that also include：

    Vibrating motor, for when the distance of the shelter and mobile terminal is less than three setpoint distances, producing setpoint frequency Vibration；

    Sound transducer, for gathering sampled voice value caused by the vibration；

    The acceleration transducer, it is additionally operable to gather acceleration sampled value caused by the vibration；

    The processor, it is additionally operable to obtain the acceleration sampled value and/or the sampled voice value；Adopted according to the acceleration Sample value and/or the sampled voice value, determine the material type of the shelter；According to the material type of the shelter, really The coverage extent information of the fixed shelter.