CN107277237B - Voice quality adjusting method, mobile terminal and readable storage medium - Google Patents
Voice quality adjusting method, mobile terminal and readable storage medium Download PDFInfo
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- CN107277237B CN107277237B CN201710430710.1A CN201710430710A CN107277237B CN 107277237 B CN107277237 B CN 107277237B CN 201710430710 A CN201710430710 A CN 201710430710A CN 107277237 B CN107277237 B CN 107277237B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
- H04B17/327—Received signal code power [RSCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
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Abstract
The invention discloses a voice quality adjusting method, a mobile terminal and a readable storage medium, wherein the voice quality adjusting method comprises the following steps: when the mobile terminal is in a real-time communication state, acquiring the voice speed and the voice volume acquired by the mobile terminal, presetting time at intervals, acquiring the voice speed variation and the voice volume variation in the preset time according to the voice speed and the voice volume in the preset time, judging whether the current communication performance index of the mobile terminal reaches a preset standard according to the voice speed variation and the voice volume variation, and calling a preset communication improvement flow if the current communication performance index of the mobile terminal does not reach the preset standard. The method enables the mobile phone to automatically adjust the voice quality in a severe communication environment so as to achieve the aim that a user can carry out normal communication and improve the use experience of the user.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a voice quality adjusting method, a mobile terminal, and a readable storage medium.
Background
With the popularization of mobile phones, real-time communication is used more and more frequently in life, communication and communication of people are more convenient and faster through real-time communication, however, with the increase of the use frequency, the requirements of people on the voice quality of real-time communication are gradually improved, and the voice quality cannot be guaranteed due to the influence of the real-time communication environment.
At present, real-time communication environmental factors influencing the voice quality of communication of people are many, people cannot solve the problem of low voice quality at once under ordinary conditions, and the problem of low voice quality is solved by moving a position, adjusting a system power amplifier and even replacing communication equipment, but the recognition of a user to the communication equipment is low, the current communication of the user is probably influenced, and the user experience is poor.
Disclosure of Invention
The invention mainly aims to provide a voice quality adjusting method based on a real-time communication environment, and aims to solve the problems that the voice quality of real-time communication is influenced by the real-time communication environment and cannot be automatically adjusted.
In order to achieve the above object, the present invention provides a voice quality adjusting method based on a real-time communication environment, the voice quality adjusting method comprising:
when the mobile terminal is in a real-time communication state, acquiring the voice speed and voice volume acquired by the mobile terminal;
every interval of preset time length, acquiring voice speed variation and voice volume variation in the preset time length according to the voice speed and the voice volume in the preset time length;
judging whether the communication performance index of the current communication environment of the mobile terminal reaches a preset standard or not according to the voice speed variation and the voice volume variation;
and if the communication performance index of the current communication environment of the mobile terminal does not reach the preset standard, calling a preset communication improvement scheme.
Optionally, the step of determining whether the communication performance index of the current communication environment of the mobile terminal reaches the preset standard according to the voice speed variation and the voice volume variation includes:
acquiring the comprehensive variation of the voice speed variation and the voice volume variation, and judging whether the comprehensive variation is larger than a preset threshold value;
and if the comprehensive variation is larger than a preset threshold value, judging that one or more communication performance indexes of the current communication environment of the mobile terminal do not reach a preset standard.
Optionally, the step of determining that one or more communication performance indicators of the current communication environment of the mobile terminal do not meet the preset criteria further includes:
if all the communication performance indexes of the current communication environment of the mobile terminal reach the preset standard, detecting whether the mobile terminal is executing a preset communication improvement scheme;
and if the mobile terminal is detected to execute the preset communication improvement scheme, stopping executing the affiliated communication improvement scheme.
Optionally, if the communication performance index of the current communication environment of the mobile terminal does not meet the preset standard, the step of invoking the preset communication improvement scheme further includes:
if one or more communication performance indexes of the current communication environment of the mobile terminal do not meet a preset standard, detecting whether the current communication signal intensity of the mobile terminal is smaller than a preset normal value or not;
and when the current communication signal intensity of the mobile terminal is smaller than a preset normal value, judging that the current communication signal intensity of the mobile terminal is too low, and improving the power of a communication module of the mobile terminal.
Optionally, after the step of detecting whether the current communication signal strength of the mobile terminal is smaller than a preset normal value, the method further includes:
when the current communication signal intensity of the mobile terminal is greater than or equal to a preset normal value, detecting an environmental noise decibel value of the environment where the mobile terminal is located;
and when the detected ambient noise decibel value is larger than the preset decibel value, judging that the ambient noise is overlarge, and starting the noise reduction function of the mobile terminal.
Optionally, the step of detecting an ambient noise decibel value of an environment where the mobile terminal is located includes:
when the detected environment noise decibel value is smaller than or equal to a preset decibel value, judging whether the signal quality of the downlink voice signal received by the mobile terminal reaches the standard or not;
when the signal quality of the downlink voice signal is not up to the standard, the system voice power amplifier and the system signal-to-noise ratio of the mobile terminal are improved.
Optionally, when the signal quality of the downlink voice signal is not met, the step of improving the system voice power amplifier and the system signal-to-noise ratio of the mobile terminal includes:
when the signal quality of the downlink voice signal does not reach the standard, preferentially increasing a system power amplifier and assisting to increase the signal-to-noise ratio of the system;
if the system power amplifier exceeds the preset maximum power amplifier value, the signal-to-noise ratio of the system is preferentially improved, and the system power amplifier is increased in an auxiliary mode.
Optionally, the voice quality adjusting method further includes:
when the mobile terminal executes a preset communication improvement scheme, recording that the communication performance index of the communication environment of the mobile terminal in the subsequent preset buffer time does not reach the preset standard time;
and if the occupation ratio value of the non-standard time length in the preset buffering time length is larger than the preset occupation ratio value, detecting the communication performance indexes of other communication environments, and executing a corresponding improvement scheme according to other non-standard communication performance indexes.
In addition, to achieve the above object, the present invention also provides a mobile terminal, including: a memory, a processor and a speech quality adjustment program stored on the memory and executable on the processor, the speech quality adjustment program when executed by the processor implementing the steps of the speech quality adjustment method as described above.
Further, to achieve the above object, the present invention also provides a computer-readable storage medium having stored thereon a voice quality adjusting program which, when executed by a processor, realizes the steps of the voice quality adjusting method as described above.
The intelligent voice quality adjusting method based on the real-time communication environment adjusts various communication parameters of the communication equipment in real time by detecting the voice quality of the user, and can adjust the parameters in a targeted manner according to different environmental problems influencing the voice quality of the user to obtain the best adjusting effect and play the best performance of the equipment, thereby achieving the aim of adjusting the voice quality. The voice quality can be automatically adjusted according to the communication environment, so that a user can obtain better communication experience in a poor communication environment due to automatic adjustment of the equipment.
Drawings
Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a communication network system architecture diagram according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a voice quality adjustment method according to a first embodiment of the present invention;
FIG. 4 is a detailed flowchart of an embodiment of step S30 in FIG. 3;
FIG. 5 is a flowchart illustrating a detailed process of step S40 in FIG. 3;
FIG. 6 is an interaction diagram of an application scenario of an embodiment of a voice quality adjustment method according to the present invention;
FIG. 7 is an interaction diagram of an application scenario of another embodiment of a speech quality adjustment method according to the present invention;
FIG. 8 is an interaction diagram of an application scenario of another embodiment of the speech quality adjustment method according to the present invention;
fig. 9 is a waveform diagram illustrating the status ratio statistics when the communication performance index of the communication environment does not reach the preset standard.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.
The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.
Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile terminal in detail with reference to fig. 1:
the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (frequency Division duplex-Long Term Evolution), and TDD-LTE (Time Division duplex-Long Term Evolution).
WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.
The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.
Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.
The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.
Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.
In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.
Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.
Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.
The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.
The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and charging functions Entity) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).
The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.
Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.
Based on the above mobile terminal hardware structure and communication network system, the present invention provides various embodiments of the method.
The invention provides a voice quality adjusting method.
In a first embodiment of the voice quality adjusting method based on a real-time communication environment of the present invention, referring to fig. 3, the voice quality adjusting method includes:
step S10, when the mobile terminal is in a real-time communication state, acquiring the voice speed and voice volume acquired by the mobile terminal;
specifically, when the user performs real-time communication (the real-time communication state includes a conventional call state, a voice communication and a video communication realized by instant messaging software, a man-machine interaction, and the like). The mobile terminal collects the voice speed and voice volume of the user in real time through signal collecting equipment such as a microphone (optionally, the mobile terminal can identify syllables spoken by the user according to a built-in voice recognition system, the voice speed of the user can be obtained by calculating the number of the syllables spoken by the user in unit time, simultaneously, the decibel value of each syllable of the user is collected, and the voice volume of the user during speaking can be obtained according to the decibel value).
Step S20, every interval of preset duration, obtaining the voice speed variation and the voice volume variation in the preset duration according to the voice speed and the voice volume in the preset duration;
after the real-time data of the voice speed and the voice volume are collected, the mobile terminal calculates the data collected in the time length every other preset time length to obtain data per unit. For example, the unit of the voice speed is every second, the preset interval is 2 seconds, the data acquired by the mobile terminal is 5 words spoken by the user in the interval time, and the voice speed in the interval time duration is 2.5 every second; and the voice volume is obtained by calculating the average decibel value in the interval time. After calculating the values of the voice speed and the voice volume in a unit time, the mobile terminal calculates the difference between two data of adjacent periods (e.g. mobile terminal-to-voice speed data v)1，v2，v3.., the voice speed variation Δ v is calculated as Δ v1＝v2-v1，Δv2＝v3-v2.., the voice volume Δ q) can be obtained in the same way, and the variation of the voice speed and the voice volume can be obtained. It should be emphasized that, in order to avoid the interference of the emergency, the mobile terminal ignores the abnormal data of the voice speed and the voice volume change in the short response time (for example, the response time is 1 second, and the change amplitude exceeds 100% to be regarded as the abnormal change, and then the voice speed and the voice volume change in the 1 second is compared with the voice speed and the voice volume change in the previous response time and the next response time, and the change amplitude exceeds 1The amount of change in the response time is ignored at 00%).
Step S30, determining whether the communication performance index of the current communication environment of the mobile terminal meets a preset standard according to the voice speed variation and the voice volume variation, where a schematic diagram refers to fig. 6;
in the real-time communication process of the user, usually, each person speaks according to own habits, so that the speaking speed and the speaking volume of the user cannot be greatly changed under the general condition, and the speech speed and the speech volume cannot be greatly changed, so that when the speech speed and the speech volume are not greatly changed, the user is indicated to be in a good communication environment currently. If the communication performance index of the communication environment does not reach the preset standard, namely the communication environment is deteriorated, the voice quality of people is inevitably affected, and under the condition, a user generally subconsciously adapts to the deteriorated communication environment by improving the call speed and the voice volume.
In order to integrate the influence of the two parameters of the voice speed and the voice volume on the voice quality, after the variation in the voice speed and the voice volume period is calculated, the voice quality variation is calculated by a preset correlation formula (for example, the sum of the preset voice quality S and the voice speed v and the voice volume q is a reciprocal relation). The mobile terminal judges whether the current communication environment is deteriorated or not by judging whether the variable quantity of the voice quality is larger than a preset value or not.
Step S40, if the communication performance index of the current communication environment of the mobile terminal does not reach the preset standard, calling the preset communication improvement scheme;
specifically, by detecting the voice quality variation, it is determined that the communication performance index of the current communication environment does not meet a preset standard, that is, after the communication environment has deteriorated, the mobile terminal detects various pieces of environment data in the communication environment through devices such as a sensor and finds out abnormal environment data, so as to obtain a specific environment problem, and places medicines according to the specific environment problem in a symptomatic manner, and executes a corresponding preset communication improvement scheme to improve the voice quality of the user.
When the communication environment of the user is judged to be deteriorated after the voice quality parameter change is detected, the mobile terminal can automatically detect various factors influencing real-time communication of the user in the environment, and after the reason causing the deterioration of the communication environment is detected, the mobile terminal can call a corresponding communication improvement scheme to improve the communication environment of the user so as to improve the voice quality of the user, thereby avoiding the waste of unnecessary resources and performance of the mobile terminal, and increasing the speed and the accuracy of response.
The voice quality adjusting method based on the real-time communication environment comprises the steps of collecting voice speed and voice volume when a user carries out real-time communication, obtaining corresponding data variable quantity according to the collected voice speed and the collected voice volume at intervals of preset time length, calculating corresponding voice quality through a preset formula, and judging whether the current real-time communication environment of the user is deteriorated or not by monitoring the variable quantity of the voice quality through a mobile terminal. Generally, when the voice quality of a user is deteriorated due to deterioration of a communication environment, the user can only improve the communication effect by manually performing some simple methods to improve the communication quality, for example, manually increasing the power of a system, moving to a quieter environment, and the like, and unconsciously increasing the speech rate and volume of speech (when a user talks in a noisy environment, the speech rate of a person is much higher than that in a quiet environment, and the speech rate is increased to some extent, so as to improve the communication quality), so when the user is performing real-time communication, manual adjustment has to be performed to improve the deteriorated communication environment, which is inconvenient, and when the user is in an emergency, there is a possibility that the user may be interfered with obtaining information.
In the present embodiment, by monitoring the voice quality, it is detected whether or not the user is in a communication environment in which deterioration has occurred while the user is performing real-time communication. When the variable quantity of the voice quality is larger than a preset value, the fact that the current communication environment is deteriorated and harmful effects are caused to the real-time communication of the user is judged, and then the influence factors are correspondingly detected to further determine specific reasons influencing the voice quality. That is, when determining that the communication environment is degraded, the environment factors (e.g., environmental noise, network signal strength, etc.) are first detected one by one to further identify the cause of the degradation of the user communication environment. Then, the mobile terminal can adopt a corresponding improvement scheme in a targeted manner, for example, in an environment with high environmental noise, the mobile terminal can increase a system power amplifier to solve the problem without increasing the power of a signal receiving component (the increase in power can reduce battery life and increase radiation of a mobile phone) or increasing a communication signal-to-noise ratio (increase in hardware burden and system resources). After executing the improvement scheme, the mobile terminal continues to detect the change of the voice quality within the preset improvement time, if the voice quality variation has no improved performance within the preset time, it indicates that the user is in a complex communication environment (when multiple influence factors exist), the single improvement scheme cannot effectively improve the communication quality of the user, the communication quality in this document refers to the audio quality of the mobile terminal used for voice interaction with the user, including conversation, instant voice and video, man-machine interaction and the like, the expression of high communication quality is clear in sound, proper in volume and free of noise and echo, and the sound and tone of the original sound source can be maintained. The mobile terminal will continue to detect other environmental factors, and after the detection is completed, start multiple improvement schemes simultaneously to cooperatively solve the problem of the complex communication environment (for example, increase the power of the system power amplifier and the mobile terminal communication module simultaneously), so as to cooperatively improve the situation of the poor communication quality caused by the complex communication environment. This enables the handset to improve the quality of communications at minimal cost. The steps of the process are automatically executed after the mobile terminal detects that the voice quality variation has abnormal variation, so that a user can obtain better communication experience in different communication environments without manually adjusting the mobile phone in the communication process.
Further, based on the first embodiment of the voice quality adjusting method of the present invention, a second embodiment of the voice quality adjusting method is proposed, and in the second embodiment, as shown in fig. 4, step S30 includes:
step S31, acquiring the comprehensive variation of the voice speed variation and the voice volume variation, and judging whether the comprehensive variation is larger than a preset threshold value;
specifically, after the mobile terminal calculates the variation of the voice speed and the voice volume, the comprehensive variation of the comprehensive voice speed and the voice volume variation is expressed by the variation of the voice quality according to a preset formula, and the comparison result of the variation of the voice quality and the preset value can judge whether the current communication environment of the mobile terminal is deteriorated.
And step S32, if the comprehensive variation is larger than the preset threshold, determining that one or more communication performance indexes of the current communication environment of the mobile terminal do not reach the preset standard.
Specifically, when it is detected that the integrated variation of the speech speed and the speech volume variation is greater than a preset threshold (i.e., the variation of the speech quality is greater than the preset threshold), it is determined that one or more of the communication performance indicators of the current communication environment of the user do not meet the preset standard, i.e., the communication environment has deteriorated, which results in that the normal communication of the user is affected.
The mobile terminal collects and analyzes the variable quantity of the voice speed and the voice volume during real-time communication, and analyzes and judges according to the daily use habits of people, when the situation that the communication environment is deteriorated is met, people can unconsciously improve the communication quality by increasing the volume and accelerating the speed, and the expression of the unconscious actions in the client is the increase of the comprehensive variable quantity of the voice speed and the voice volume, so that when the comprehensive variable quantity of the voice speed and the voice volume is larger than a preset threshold value, the mobile terminal can judge that the communication environment of the user is deteriorated. Therefore, the speed of the mobile terminal for identifying whether the communication environment of the user is deteriorated is very quick, so that a corresponding improvement scheme can be timely started to reduce the negative influence of the communication environment deterioration on the real-time communication of the user.
Optionally, referring to fig. 4, in another embodiment of the speech quality adjusting method of the present invention, after step S31, the method further includes:
step S33, if the integrated variation is less than or equal to the preset threshold, judging that the communication performance indexes of the current communication environment of the mobile terminal all reach the preset standard, and detecting whether the mobile terminal is executing the preset communication improvement scheme;
specifically, after detecting that all the communication performance indexes of the current communication environment reach the preset standard, that is, the communication environment is not deteriorated, the mobile terminal detects whether a preset communication improvement scheme is being executed, so as to determine whether the communication performance indexes are the improvement effect achieved by the executing improvement scheme.
In step S34, if it is detected that the mobile terminal is executing a preset communication improvement plan, the execution of the communication improvement plan is stopped.
Specifically, after detecting that the mobile terminal is executing the predicted communication improvement scheme, in order to avoid performance waste (software and hardware resources occupied by the improvement scheme, consumed power endurance, and the like) of the mobile terminal, the currently executing communication improvement scheme is stopped.
The mobile terminal detects whether there is an executing communication improvement scheme when the communication environment of the user is in a normal state, so as to prevent the communication improvement scheme from being executed after the communication environment of the mobile terminal is improved from a degraded state to a normal state, and to cause performance waste (such as reduced endurance, waste of software and hardware resources, etc.) of the mobile terminal. Therefore, the mobile terminal stops executing the improvement scheme for the first time after detecting the communication improvement scheme being executed (the stop of the improvement scheme is gradual, for example, the improvement scheme increases the power amplifier, the power amplifier is gradually reduced when the stop is performed, and simultaneously, the change trend of the voice quality is detected, and the improvement scheme is continuously executed when the change quantity is larger than the preset value so as to determine that the stop of executing the improvement scheme does not cause the communication quality of the user to be reduced), thereby avoiding the waste of related resources. For how to improve the voice quality, a plurality of improvement schemes can be stored to deal with different situations, and the principle of the system selection solution is to preferentially select the solution with the best effect (for example, preferentially increase the power of a signal receiving part to enhance the signal strength when the signal strength is low), and then select the solution with the lowest comprehensive cost (the comprehensive cost comprises the effects of reduced cruising, increased hardware cost, reduced software performance, increased radiation to human body, increased heating value and the like brought by the corresponding scheme), so that the communication quality of a user can be improved through the minimum loss, and the communication improvement scheme can be stopped in time when the solution is not needed, thereby avoiding unnecessary resource waste. And then make the user obtain better performance in the use, have better use experience.
Further, in the third embodiment of the speech quality adjusting method according to the present invention, as shown in fig. 5, step S40 includes:
step S41, if the communication performance index of the current communication environment of the mobile terminal does not reach the preset standard, detecting whether the current communication signal intensity of the mobile terminal is smaller than the preset normal value;
specifically, when the mobile terminal has detected that the communication performance index of the current communication environment does not meet the preset standard, that is, the communication environment is degraded, each environmental factor is detected according to the priority order preset by the system, and the communication signal strength (default priority) is detected first, so that whether the communication environment is degraded due to the fact that the communication signal strength is lower than a preset normal value or not can be obtained.
Step S42, when the current communication signal intensity of the mobile terminal is smaller than the preset normal value, it is determined that the current communication signal intensity of the mobile terminal is too low, and the power of the communication module of the mobile terminal is increased, and the schematic diagram refers to fig. 7.
Specifically, when the mobile terminal finds that the current communication signal strength is smaller than a preset normal value after detecting the communication signal strength, it is determined that the communication signal strength is too low as a cause of communication environment deterioration. When the communication signal strength is judged to be too low, the mobile terminal executes a corresponding improvement scheme, and the power of the communication module is increased to increase the strength of the received communication signal, so that the problem that the strength of the received signal is too low is solved.
The mobile terminal detects and analyzes the voice quality change quantity, so as to find out the main environmental problem by detecting some environmental factors after judging that the current external environment is deteriorated. The mobile terminal eliminates the environmental factors one by one according to the preset environmental problem priority (the manufacturer can set the priority according to the situation), thereby finally detecting the reason for deteriorating the communication environment. The priority is referred to by the degree of the environment problem affecting communication (the most common communication environment problem is the higher the priority), or the cost of the handset in solving the communication environment problem is low (the lower the cost of solving the communication environment problem is, the higher the priority is). The aim is to reduce the time and performance of the mobile phone for detecting and improving the communication environment problem to the maximum extent, so that the mobile terminal can obtain better service performance when performing automatic adjustment. The mobile terminal can preferentially detect whether the signal intensity is smaller than a preset normal value (the signal intensity is a common communication environment problem of a user in the communication process), if the signal intensity is judged to be too low to cause the deterioration of the communication environment, a corresponding improvement scheme is immediately executed, the power of a communication module of the mobile terminal is improved, and therefore the received communication signal intensity is increased to improve the communication environment of the user.
Further, referring to fig. 5, step S41, the step of detecting whether the current communication signal strength of the mobile terminal is smaller than a preset normal value further includes:
step S43, when the current communication signal intensity of the mobile terminal is larger than or equal to a preset normal value, detecting the ambient noise decibel value of the environment where the mobile terminal is located;
specifically, after detecting the signal strength and determining that the signal strength is at a normal value, the mobile terminal then detects the decibel value of the environmental noise, thereby determining whether the communication environment is degraded due to excessive environmental noise.
And step S44, when the detected ambient noise decibel value is greater than the preset decibel value, judging that the ambient noise is too large, and starting the noise reduction function of the mobile terminal.
When the mobile terminal detects that the decibel value of the environmental noise is greater than the preset value decibel, the mobile terminal judges that the reason of the current communication environment deterioration is that the environmental noise is too large, and executes a corresponding improvement scheme to eliminate the influence of the environmental noise.
After the mobile terminal detects the signal intensity according to the preset priority sequence and finds that the signal intensity is at a normal value, the decibel value of the environmental noise is continuously detected to judge whether the communication environment is deteriorated due to overlarge environmental noise. If the communication environment is degraded due to the fact that the decibel value of the environmental noise is too large, the mobile terminal can start the noise reduction function to reduce the condition of the communication environment degradation due to the fact that the environmental noise is too large.
After the mobile terminal passes through the detection for many times, the mobile terminal can accurately find the reasons which affect the communication quality, and can execute the corresponding improvement scheme according to the specific reasons, thereby avoiding the useless work of the system, shortening the response time of the mobile terminal to the environment, and optimizing the performance of the system.
Further, referring to fig. 5, step S43, the step of detecting the decibel value of the environmental noise of the mobile terminal includes:
step S45, when the noise decibel value of the detected environment is less than or equal to the preset decibel value, judging whether the signal quality of the downlink voice signal received by the mobile terminal reaches the standard;
specifically, after the mobile terminal detects that the ambient noise decibel value is a normal value, it is determined that the signal quality of the received downlink voice signal does not meet the standard, which results in deterioration of the communication environment.
And after the mobile terminal detects that the noise decibel value of the current environment is in a normal value, judging that the current external environment is in a good state, and judging that the quality of the received downlink voice signal does not reach the standard. When the external environment is in a good state, the communication environment may be deteriorated because the signal quality of the signal received by the mobile terminal does not reach the standard, and the communication experience of the user is reduced.
Step S46, when the signal quality of the downlink voice signal is not reached, the system voice power amplifier and the system signal-to-noise ratio of the mobile terminal are improved, and the schematic diagram refers to FIG. 8;
after the quality of the downlink voice signal of the mobile terminal is judged to be not up to the standard, the mobile terminal can improve the voice power amplifier of the system and the signal-to-noise ratio of the system to improve the content quality of the downlink voice signal, so that a user can obtain high-quality signal content (the downlink signal with the quality not up to the standard causes the problems of small sound volume, unclear sound, echo, noise and the like of the sound played by the mobile terminal according to the signal).
The mobile terminal detects whether the communication environment is deteriorated due to the external environment one by one according to a preset priority sequence. After the reason of the external environment is eliminated, the quality of the downlink signal received by the mobile terminal is judged to be not up to the standard, and the situation that the voice quality is not up to the standard also occurs according to the content played by the downlink voice signal by the mobile terminal, so that the communication environment is deteriorated. Therefore, when the downlink voice signal is judged not to reach the standard, the mobile terminal improves the voice quality of the content played according to the downlink voice signal in a mode of improving the voice power amplifier of the system (the power amplifier of the system is divided into a voice power amplifier, a music power amplifier, a common power amplifier and the like, and the mobile terminal determines the specific power amplifier according to the power amplifier size when performing corresponding operation.
Further, in step S46, when the signal quality of the downlink voice signal is not reached, the step of improving the system voice power amplifier and the system signal-to-noise ratio of the mobile terminal further includes:
and if the signal quality of the current voice signal does not reach the standard, preferentially increasing the system power amplifier and assisting to increase the signal-to-noise ratio of the system, and if the system power amplifier exceeds a preset maximum power amplifier value, preferentially increasing the system signal-to-noise ratio and assisting to increase the system power amplifier.
Specifically, when the downlink voice signal is increased to a value not reaching the standard, the mobile terminal can improve the voice quality of the downlink signal by improving the power amplifier of the system and increasing the signal-to-noise ratio of the system. Preferentially, the mobile terminal can improve the voice power amplifier of the system (the improvement of the voice power amplifier of the system is lower in operation difficulty and lower in cost than the improvement of the signal-to-noise ratio of the system), and the increase of the signal-to-noise ratio is used as an auxiliary scheme (namely, the improvement of the signal-to-noise ratio of the system is less when the voice power amplifier is improved), when the voice power amplifier is larger than a preset maximum power amplifier value (the maximum value of the voice power amplifier is not the maximum value of the system, but is a preset maximum value, for example, the preset maximum value is 75% of the maximum value of the system, namely, the voice power amplifier reaches 75% of the maximum power amplifier of the system), it is indicated that the voice quality of the downlink signal is low, the volume is not too small, and.
The mobile terminal can effectively improve the quality problem of the played content caused by the substandard downlink voice signal quality by improving the system voice power amplifier and the system signal-to-noise ratio, but when the improvement scheme is executed, the improvement of the system voice power amplifier by the mobile terminal is easier to realize than the improvement of the system signal-to-noise ratio, and the auxiliary cost is lower (the improvement of the signal-to-noise ratio has higher requirements on software, hardware and the like of the mobile terminal). Therefore, the mobile terminal can preferentially raise the system voice power amplifier, and when the system voice power amplifier reaches a preset maximum value (at the moment, the power amplifier is in a larger level, and the problem is not obviously improved when the problem is detected, the system power amplifier is not improved enough to have a good voice quality effect, and when the real-time communication is carried out, the overlarge voice power amplifier can damage the hearing of a user), the problem that the voice quality is poor can be improved by preferentially increasing the signal-to-noise ratio of the system.
Further, the voice quality adjusting method further includes:
when the mobile terminal executes a preset communication improvement scheme, recording that the communication performance index of the communication environment of the mobile terminal in the subsequent preset buffer time does not reach the preset standard time;
if the occupation ratio of the non-standard time length in the preset buffering time length is larger than the preset value, the communication performance indexes of other communication environments are detected, and corresponding improvement schemes are executed according to the other non-standard communication performance indexes, and a schematic diagram of the scheme refers to fig. 9.
Specifically, after the mobile terminal executes the improvement scheme, the communication performance improvement condition of the communication environment is detected within a preset buffer duration, the improvement effect of the improvement scheme can be judged according to the fact that the communication performance index of the communication environment does not reach a preset standard duration, namely, the occupation ratio value of the communication environment deterioration state duration in the preset buffer duration, if the improvement effect does not reach expectation (the occupation ratio value of the deterioration state duration is greater than a preset value), other reasons causing the communication environment deterioration are judged, and the mobile terminal continues to detect other reasons and correspondingly improve (the detected index for executing the improvement scheme is skipped). For example, when the user is in a communication environment where the noise and the downlink signal of the mobile terminal do not meet the standard, the noise is firstly detected to be not met according to the priority, and an improvement scheme of the noise not meeting the standard is executed, but the noise improvement scheme has no improvement effect on the downlink signal, so that the communication environment of the user is still not effectively improved. At the moment, detection is continued, and after the downlink signal is detected to be not up to the standard, an improvement scheme that the downlink signal is not up to the standard is executed, so that the user communication environment is comprehensively improved. Therefore, the mobile terminal detects all the reasons causing the deterioration of the communication environment and performs corresponding improvement, so as to achieve the best improvement effect and the maximum improvement efficiency, and enable the user to obtain high-quality communication experience in a complex communication environment.
The invention also provides a device for adjusting the voice quality based on the real-time communication environment.
The invention relates to a voice quality adjusting device based on a real-time communication environment, which comprises: the voice quality adjusting method comprises a memory, a processor and a voice quality adjusting authorization program which is stored on the memory and can run on the processor, wherein the voice quality adjusting program realizes the steps of the voice quality adjusting method of the embodiments as described above when being executed by the processor.
The method implemented when the real-time communication environment-based voice quality adjustment program of the prompt message running on the processor is executed may refer to each embodiment of the voice quality adjustment method of the present invention, and is not described herein again.
In addition, the embodiment of the invention also provides a computer readable storage medium.
The computer-readable storage medium of the present invention stores thereon a real-time communication environment-based voice quality adjustment program that, when executed by a processor, implements the steps of the real-time communication environment-based voice quality adjustment method as described above.
The method implemented when the prompt information display program running on the processor is executed may refer to each embodiment of the intelligent voice quality adjusting method based on the real-time communication environment of the present invention, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A voice quality adjusting method, characterized by comprising the steps of:
when the mobile terminal is in a real-time communication state, acquiring the voice speed and voice volume acquired by the mobile terminal;
every interval of preset time length, acquiring voice speed variation and voice volume variation in the preset time length according to the voice speed and the voice volume in the preset time length;
acquiring the comprehensive variation of the voice speed variation and the voice volume variation, and judging whether the comprehensive variation is larger than a preset threshold value;
if the comprehensive variation is larger than a preset threshold value, judging that one or more communication performance indexes of the current communication environment of the mobile terminal do not reach a preset standard;
and if the communication performance index of the current communication environment of the mobile terminal does not reach the preset standard, calling a preset communication improvement scheme.
2. The voice quality adjusting method according to claim 1, wherein the step of determining after one or more communication performance indicators of the current communication environment of the mobile terminal have not met the preset criteria further comprises:
if all the communication performance indexes of the current communication environment of the mobile terminal reach the preset standard, detecting whether the mobile terminal is executing a preset communication improvement scheme;
and if the mobile terminal is detected to execute the preset communication improvement scheme, stopping executing the communication improvement scheme.
3. The voice quality adjusting method according to claim 1, wherein the step of invoking the preset communication improvement scheme if the communication performance index of the current communication environment of the mobile terminal does not meet the preset standard further comprises:
if one or more communication performance indexes of the current communication environment of the mobile terminal do not meet a preset standard, detecting whether the current communication signal intensity of the mobile terminal is smaller than a preset normal value or not;
and when the current communication signal intensity of the mobile terminal is smaller than a preset normal value, judging that the current communication signal intensity of the mobile terminal is too low, and improving the power of a communication module of the mobile terminal.
4. The voice quality adjusting method according to claim 3, wherein the step of detecting whether the current communication signal strength of the mobile terminal is smaller than a preset normal value further comprises:
when the current communication signal intensity of the mobile terminal is greater than or equal to a preset normal value, detecting an environmental noise decibel value of the environment where the mobile terminal is located;
and when the detected ambient noise decibel value is larger than the preset decibel value, judging that the ambient noise is overlarge, and starting the noise reduction function of the mobile terminal.
5. The voice quality adjustment method according to claim 4, wherein the step of detecting an ambient noise decibel value of an environment where the mobile terminal is located comprises the steps of:
when the detected environment noise decibel value is smaller than or equal to a preset decibel value, judging whether the signal quality of the downlink voice signal received by the mobile terminal reaches the standard or not;
and when the signal quality of the downlink voice signal is not up to the standard, improving the system voice power amplifier and/or the system signal-to-noise ratio of the mobile terminal.
6. The voice quality adjusting method according to claim 5, wherein the step of increasing the signal-to-noise ratio of the system voice power amplifier and/or the system of the mobile terminal when the signal quality of the downstream voice signal is not reached comprises:
when the signal quality of the downlink voice signal does not reach the standard, preferentially increasing a system power amplifier and assisting to increase the signal-to-noise ratio of the system;
if the system power amplifier is larger than the preset maximum power amplifier value, the signal-to-noise ratio of the system is preferentially improved, and the system power amplifier is increased in an auxiliary mode.
7. The voice quality adjustment method according to any one of claims 3 to 6, characterized by further comprising:
when the mobile terminal executes a preset communication improvement scheme, recording the non-standard time corresponding to the non-standard time of the communication performance index of the communication environment of the mobile terminal in the subsequent preset buffer time;
and if the occupation ratio value of the non-standard time length in the preset buffering time length is larger than the preset occupation ratio value, detecting the communication performance indexes of other communication environments, and executing a corresponding improvement scheme according to other non-standard communication performance indexes.
8. A mobile terminal, characterized in that the mobile terminal comprises: memory, a processor and a speech quality adjustment program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the speech quality adjustment method according to any one of claims 1 to 7.
9. A computer-readable storage medium, characterized in that a speech quality adjustment program is stored on the computer-readable storage medium, which when executed by a processor implements the steps of the speech quality adjustment method according to any one of claims 1 to 7.
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| CN108172237B (en) * | 2018-03-12 | 2020-04-17 | Oppo广东移动通信有限公司 | Voice call data processing method and device, storage medium and mobile terminal |
| US10244104B1 (en) * | 2018-06-14 | 2019-03-26 | Microsoft Technology Licensing, Llc | Sound-based call-quality detector |
| CN109274387A (en) * | 2018-09-29 | 2019-01-25 | 滁州安飞信电子科技有限公司 | A kind of multifunction electronic communication equipment and its operating method |
| CN109561214B (en) * | 2018-11-30 | 2021-04-02 | 维沃移动通信有限公司 | Call processing method and mobile terminal |
| CN110913073A (en) * | 2019-11-27 | 2020-03-24 | 深圳传音控股股份有限公司 | Voice processing method and related equipment |
| CN111176607A (en) * | 2019-12-27 | 2020-05-19 | 国网山东省电力公司临沂供电公司 | Voice interaction system and method based on power business |
| CN111328008B (en) * | 2020-02-24 | 2021-11-05 | 广州市迪士普音响科技有限公司 | Sound pressure level intelligent control method based on sound amplification system |
| CN111610947B (en) * | 2020-05-09 | 2022-03-29 | 东风汽车集团有限公司 | Vehicle-mounted end conversation volume automatic regulating system |
| CN112634924B (en) * | 2020-12-14 | 2024-01-09 | 深圳市沃特沃德信息有限公司 | Noise filtering method and device based on voice call and computer equipment |
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