WO2018076265A1

WO2018076265A1 - Method for adjusting call audio node, and terminal device

Info

Publication number: WO2018076265A1
Application number: PCT/CN2016/103710
Authority: WO
Inventors: 杨霖; 韩晓
Original assignee: 华为技术有限公司
Priority date: 2016-10-28
Filing date: 2016-10-28
Publication date: 2018-05-03
Also published as: CN109716666A

Abstract

Disclosed is a method for adjusting a call audio node, comprising: receiving a speech frame issued by a network side device; determining whether the speech frame is a silent frame or a no-data frame, or determining whether speech data included in the speech frame is invalid speech data; and if the speech frame is a silent frame or a no-data frame, or the speech data included in the speech frame is invalid speech data, turning off a node of an audio downlink path. Also provided is a terminal device. By means of the embodiments of the present invention, on the premise of ensuring the call quality, the power consumption during a call can be reduced.

Description

Method for adjusting call audio node and terminal device

Technical field

The present invention relates to the field of electronic technologies, and in particular, to a method for adjusting a call audio node and a terminal device.

Background technique

The rapid growth of smartphone penetration has made it a necessity in modern life. With the continuous development of smart phones, people have more and more demands on the use of smart phones, but the capacity of smart phones is limited. The more functions they use, the greater the power consumption of smart phones, and the shorter the use time.

Voice call technology is a must-have feature for smartphones. At present, with the continuous development of voice call technology, in order to improve the call quality and the call effect, more and more new devices are added to the call, which leads to an increase in power consumption during the call. Therefore, how to ensure the quality of the call Reducing power consumption during a call is a technical problem to be solved by those skilled in the art.

Summary of the invention

Embodiments of the present invention provide a method for adjusting a call audio node and a terminal device, so as to reduce power consumption during a call on the premise of ensuring call quality.

In a first aspect, an embodiment of the present invention provides a method for adjusting a call audio node, including: receiving, by a terminal device, a voice frame sent by a network side device, and then determining, by the terminal device, whether the voice frame is a silent frame or a no data frame, or determining the Whether the voice data contained in the voice frame is invalid voice data, if yes, the audio downlink (receiving) path is considered to be in an inactive working state, and the node of the audio downlink path is closed at this time, thereby achieving the purpose of reducing power consumption.

In some implementations, the determining, by the terminal device, whether the voice frame is a silent frame or a dataless frame, is: determining, by the terminal device, whether the format of the voice frame is a SID format or a No data format; The format of the voice frame is SID format or No data format, and the terminal device determines whether the voice frame is a silent frame or no data frame.

In some feasible implementation manners, the terminal device determines whether the voice data included in the voice frame is invalid voice data, where the terminal device determines the voice data included in the voice frame. Whether the amplitude of the voice data is lower than a set threshold; if the amplitude of the voice data included in the voice frame is lower than a set threshold, the terminal device determines that the voice data included in the voice frame is invalid voice data.

In some possible implementations, the node of the audio downlink path includes an audio algorithm module, a digital-to-analog conversion module, and a voice play module, where the terminal device turns off the node of the audio downlink path, and the terminal device turns off the An audio algorithm module, adjusting the digital to analog conversion module to a low power mode, and turning off the voice playback module.

In some possible implementations, the audio algorithm module includes an echo suppression module, a noise reduction module, and a gain adjustment module. The specific implementation manner of the terminal device to close the audio algorithm module is: the terminal device turns off the echo suppression module. And the noise reduction module, and adjusting the digital gain of the gain adjustment module to zero.

In some possible implementations, the digital-to-analog conversion module includes a Codec chip, a SmartPA chip, and a HIFI chip, and the terminal device adjusts the digital-to-analog conversion module to a low-power mode. The specific implementation manner is: the terminal device is turned off. The DAC conversion function of the codec chip adjusts the analog gain of the codec chip to zero, adjusts the SmartPA chip to a low power mode, and turns off the HIFI chip.

In some possible implementations, the method further includes:

If the voice data included in the voice frame is voiced data, the terminal device opens a node of the audio downlink path.

In a second aspect, the invention provides a terminal device comprising means for performing the method of the first aspect.

In a third aspect, the present invention provides a terminal device, where the terminal device includes a processor, and the processor is configured to support the network element to perform a corresponding function in a method for adjusting a call audio node provided by the first aspect. The terminal device can also include a memory for coupling with the processor that holds the necessary program instructions and data for the terminal device. The terminal device can also include a communication interface for the network element to communicate with other devices or communication networks.

In a fourth aspect, the present invention provides a computer storage medium for storing computer software instructions for a network element provided by the above fifth aspect, comprising a program designed to perform the above aspects.

Compared with the prior art, the solution provided by the present invention can be used to reduce power consumption when the user is currently in a speaking state rather than a listening state, at which time the node of the audio downlink path is closed.

These and other aspects of the invention will be more apparent from the following description of the embodiments.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

FIG. 1 is a schematic flowchart of a method for adjusting a call audio node according to an embodiment of the present invention;

2 is a schematic diagram of an audio portion of a voice downlink path according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a specific format of a voice data frame according to an embodiment of the present invention;

4 is a schematic structural diagram of an audio downlink path algorithm according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an audio algorithm module according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of an internal structure of a conventional codec chip according to an embodiment of the present invention; FIG.

FIG. 7 is a schematic structural diagram of adding a downlink data buffer according to an embodiment of the present invention;

FIG. 8 is a schematic flowchart of a method for adjusting a call audio node according to an embodiment of the present invention;

FIG. 9 is a schematic flowchart of a method for adjusting a call audio node according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is an embodiment of the invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

The details are described below separately.

The terms "first", "second", "third", and "fourth" and the like in the specification and claims of the present invention are used to distinguish different objects, and are not intended to describe a specific order. . Furthermore, the terms "comprises" and "comprising" and "comprising" are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units not listed, or alternatively Other steps or units inherent to these processes, methods, products or equipment.

References to "an embodiment" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the invention. The appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.

Hereinafter, some of the terms in the present application will be explained to be understood by those skilled in the art.

1) A terminal device, also called a User Equipment (UE), is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, an in-vehicle device, and the like. Common terminals include, for example, mobile phones, tablets, notebook computers, PDAs, mobile internet devices (MIDs), wearable devices such as smart watches, smart bracelets, pedometers, and the like.

2) The network side device refers to the node device on the network side. For example, the network element may be a radio access network (RAN) device on the access network side of the cellular network, and the so-called RAN device is a terminal device. The device that enters the wireless network, including but not limited to: an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), and a base station controller (Base) Station Controller (BSC), Base Transceiver Station (BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), Baseband Unit (BBU); for example, the network element can also It is a node device in a Wireless Local Area Network (WLAN), such as an access controller (AC), a gateway, or a WIFI access point (AP).

3) The so-called data frame is the protocol data unit of the data link layer. It consists of three parts: the frame header, the data part, and the end of the frame. Where the frame header and the end of the frame contain some necessary control information, such as synchronization information, address information, error control information, etc., and the data portion is voice information, then the language Audio data frame.

4) "Multiple" means two or more. "and/or", describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately. The character "/" generally indicates that the contextual object is an "or" relationship.

Embodiments of the present application will be described below with reference to the accompanying drawings.

Referring to FIG. 1 , FIG. 1 is a schematic flowchart of a method for adjusting a call audio node according to an embodiment of the present invention, including the following steps:

S101. The terminal device receives a voice frame sent by a network side.

S102. The terminal device determines whether the voice frame is a silent frame or a no data frame, or determines whether the voice data included in the voice frame is invalid voice data.

S103. If the voice frame is a silent frame or no data frame, or the voice data included in the voice frame is invalid voice data, the terminal device turns off a node of the audio downlink path.

At present, when a voice call is established, all nodes (receiving paths) in the downlink of the audio channel are in a working state, and the audio downlink (receiving) path remains in operation even when the speaker is silent. Only when the call ends, the voice path is turned off, at which point all nodes of the audio downlink (receive) path will be turned off or enter a low power state. That is to say, during a normal voice call, there is a large amount of time when the audio downlink (receive) path is in an inactive working state. In order to reduce the power consumption during the call, when the terminal device receives the voice frame sent by the network side device, it first determines whether the voice frame is a silent frame or no data frame, or determines whether the voice data included in the voice frame is Invalid voice data, if it is, the audio downlink (receive) path is considered to be in an inactive working state, and the node of the audio downlink path is closed at this time, thereby achieving the purpose of reducing power consumption.

In normal call, the voice downlink path is divided into two parts, the part is the protocol part and the audio path part. The protocol part is responsible for receiving data frames on the network side, and the audio part is responsible for playing sounds. The audio part mainly includes an audio algorithm module (DSP), a digital-to-analog conversion module (Codec/SmartPA/HIFI), and a playback module (handset/headphone, etc.). Specifically, as shown in FIG. 2, FIG. 2 is a schematic diagram of an audio portion of a voice downlink path.

Optionally, the terminal device determines whether the voice frame is a silent frame or a no data frame, where the terminal device determines whether the format of the voice frame is a SID. Format or No data format; if the format of the voice frame is SID format or No data format, the terminal device determines whether the voice frame is a silent frame or no data frame.

For example, according to the network protocol, the voice data frame format is divided into data formats such as Good Speech, SID, No data, and Bad Speech. The voice data frames are different according to different coding modes and different data frame formats, but the voice data frames are received from the network side device in a period of 20 ms, and one SID and seven No data are cyclically received. For voice data frames, each voice data frame has a period of 20ms. The specific format is shown in Figure 3. Figure 3 is a schematic diagram of the specific format of the voice data frame. When the network downlink voice data frame is identified as the SID format or the No_data format, the terminal device considers that the network downlink voice frame is a silent frame or no data frame. At this time, the terminal device dynamically configures the audio path to descend all nodes, for example, according to different node module characteristics. When the terminal device recognizes that the downlink data frame format is Good Speech or Bad Speech, the terminal device dynamically configures all nodes in the audio path to enter the working state.

Optionally, the terminal device determines whether the voice data included in the voice frame is invalid voice data, where the terminal device determines whether the amplitude of the voice data included in the voice frame is lower than Setting a threshold; if the amplitude of the voice data included in the voice frame is lower than a set threshold, the terminal device determines that the voice data included in the voice frame is invalid voice data.

The set threshold value may be, for example, 0, 3, 8, 10, 15, 23, 30 or other values.

For example, when the terminal device receives the voice frame sent by the network side device, the modem side of the terminal device transmits the voice frame to the DSP algorithm module, and the DSP parses the corresponding PCM voice data from the network data frame. Generally, the amplitude of the voice data of the normal call is about 300. When the amplitude of the PCM voice data parsed by the DSP is lower than the set threshold, the terminal device considers that the voice data included in the downlink voice frame of the network is silent data, and the terminal device is Dynamically configure all nodes of the audio channel to downlink, for example, perform different shutdown/low power/power-off operations according to different node module characteristics. When the amplitude of the PCM voice data parsed by the DSP is higher than the above set threshold, the terminal device dynamically configures the audio. All nodes in the downlink are in the working state.

Optionally, the node of the audio downlink path includes an audio algorithm module, a digital-to-analog conversion module, and a voice play module. The specific implementation manner of the node that closes the audio downlink path in the step S103 is: the terminal device is shut down. The audio algorithm module is configured to adjust the digital to analog conversion module to a low power mode, and to close the voice playback module.

For example, in a normal voice call, the audio path downlink node includes an audio algorithm module, a digital-to-analog conversion module, a voice playback module, and the like. The audio algorithm module mainly involves related operations such as software algorithms, and the specific operations involve shutting down the device driver node, closing the algorithm process/thread, unloading the related audio parameter/algorithm database, and closing the related operations. Digital-to-analog conversion module mainly involves A/D, Codec, SmartPA related filters, etc. The specific operations involve SmartPA low-power setting, turning on and off HIFI chip operation, A/D power-on and power-off operation, Codec low-power setting, and off related FIR, IIR and other filters. Among them, HIFI and SmartPA are controlled by I2C interface. The baud rate of I2C interface is generally 400Kbps or 100Kbps. SmartPA control is generally an 8Bit register. Therefore, the basic operation of SmartPA can be within the network data frame interval. carry out. Calculated at 100Kbps, 100bit*1000/1000ms=100bit/ms, so the I2C interface rate is 12.5 Byte/ms. Therefore, even the 100Kbps low-speed I2C interface can meet the real-time operation of the SmartPA.

Optionally, the audio algorithm module includes an echo suppression module, a noise reduction module, and a gain adjustment module, where the terminal device turns off the audio algorithm module, where the terminal device turns off the echo suppression module and the The noise reduction module is described, and the digital gain of the gain adjustment module is adjusted to zero.

For example, in a normal call, the audio algorithm includes an uplink algorithm and a downlink algorithm. The structure of the audio downlink path algorithm is generally as shown in FIG. 4 . The network data packet is a data packet sent by the network side device to the terminal device, and the voice decoding module is responsible for parsing the voice information in the network data packet and transmitting the voice information to the voice algorithm module, and the voice algorithm module performs algorithm processing on the received voice data. The downlink algorithm is different according to the hardware platform, and the audio algorithm module structure is slightly different, but the whole can be divided into the echo suppression module, the noise reduction module and the gain adjustment module, as shown in FIG. 5 . Since the audio algorithm modules are all algorithm modules, the switch control can be directly performed by software. When the network parsing module detects that the downlink data frame of the network is a silent frame (SID) or a voice frame such as No_Data, the audio algorithm module sends a command or invokes a correlation. The software interface, close the echo suppression module and the noise reduction module algorithm, so that the voice data is directly transmitted through, and the digital gain is adjusted to zero, thereby reducing the power consumption.

For other related modules in the audio algorithm, the same shutdown module operation or the close gain operation is also performed, thereby reducing the power consumption.

Optionally, the digital-to-analog conversion module includes a Codec chip, a SmartPA chip, and a HIFI chip, where the terminal device adjusts the digital-to-analog conversion module to a low-power mode, where the terminal device turns off the The DAC conversion function of the codec chip adjusts the analog gain of the codec chip to zero, adjusts the SmartPA chip to a low power mode, and turns off the HIFI chip function.

For example, since the codec chip and the HIFI chip are mainly responsible for digital-to-analog conversion of voice data, including analog gain, AD conversion and the like. During the call, the uplink and downlink modules operate simultaneously. For the downlink path, the main operations involve analog gain, DA conversion, and related filtering. The internal structure of the conventional codec is shown in Figure 6. Among them, the codec operation can not simply perform power-on and power-off operations, which will affect normal calls. When it is judged that the downlink data is a silent frame or a No_DATA frame, the program controls the downlink path to turn off the conversion function of the codec chip DAC, and simultaneously adjusts the analog gain to zero, and dynamically turns off the codec chip to pass the conversion function, thereby achieving the effect of reducing power consumption.

The SmartPA chip is usually an audio amplifier that amplifies an analog sound signal, but ensures that the amplified signal does not appear distorted. When the SmartPA needs to be dynamically adjusted, the SmartPA can be powered off. However, in general, in order to avoid the introduction of noise and the like, the power-on and power-off operations are not directly performed. Through the I2C interface, the SmartPA can be configured for sleep/low power consumption and normal operation. Therefore, when detecting no sound in the downlink, the SmartPA is dynamically controlled to enter the low power mode through the I2C interface. When the downlink call is resumed, the normal amplification function of the SmartPA is restored through the I2C interface. Through this dynamic adjustment mode, the SmartPA enters a low power/sleep state when the downlink is silent, thereby achieving the purpose of reducing power consumption.

Optionally, the method further includes:

Optionally, when performing audio channel dynamic operation, the electrical characteristics of each module are different due to different hardware. Some modules can operate instantaneously and complete operations within a few milliseconds (ms). Some modules operate for a slightly longer time, which may be Ten milliseconds (ms) or longer, so when performing dynamic configuration, you need to increase the downlink data buffer to ensure the integrity of voice playback. The specific structure is shown in Figure 7. Among them, the FIFO shown in FIG. 7 is a downlink data buffer.

The embodiment of the present invention further provides another more detailed method, as shown in FIG. 8, the node of the audio downlink path includes an audio algorithm module, a digital-to-analog conversion module, and a voice play module, including:

S801. The terminal device receives a voice frame sent by a network side device.

S802. The terminal device determines whether a format of the voice frame is an SID format or a No data format.

If yes, step S803 is performed.

If no, step S806 is performed.

S803. The audio algorithm module includes an echo suppression module, a noise reduction module, and a gain adjustment module, the terminal device turns off the echo suppression module and the noise reduction module, and adjusts a digital gain of the gain adjustment module to zero. .

S804. The digital-to-analog conversion module includes a Codec chip, a SmartPA chip, and a HIFI chip. The terminal device turns off the DAC conversion function of the codec chip, adjusts the analog gain of the codec chip to zero, and adjusts the SmartPA chip. To the low power mode, and to shut down the HIFI chip.

S805. The terminal device turns off the voice play module.

S806. The terminal device opens a node of an audio downlink path.

It should be noted that the specific implementation process of each step of the method shown in FIG. 8 can be referred to the specific implementation process described in the foregoing method, and is not described herein.

The embodiment of the present invention further provides another more detailed method, as shown in FIG. 9, the node of the audio downlink path includes an audio algorithm module, a digital-to-analog conversion module, and a voice play module, including:

S901: The terminal device receives a voice frame sent by the network side device.

S902. The terminal device determines whether a magnitude of the voice data included in the voice frame is lower than a set threshold.

If yes, step S903 is performed.

If no, step S906 is performed.

S903. The audio algorithm module includes an echo suppression module, a noise reduction module, and a gain adjustment module, the terminal device turns off the echo suppression module and the noise reduction module, and adjusts a digital gain of the gain adjustment module to zero. .

S904. The digital-to-analog conversion module includes a Codec chip, a SmartPA chip, and a HIFI chip. The terminal device turns off the DAC conversion function of the codec chip, adjusts the analog gain of the codec chip to zero, and adjusts the SmartPA chip. To the low power mode, and to shut down the HIFI chip.

S905. The terminal device turns off the voice play module.

S906. The terminal device opens a node of an audio downlink path.

It should be noted that the specific implementation process of each step of the method shown in FIG. 9 can be referred to the specific implementation process described in the foregoing method, and is not described herein.

The embodiment of the present invention further provides a terminal device 1000, as shown in FIG. 10, including:

The receiving module 1001 is configured to receive a voice frame delivered by the network side device.

The determining module 1002 is configured to determine whether the voice frame is a silent frame or no data frame, or determine whether the voice data included in the voice frame is invalid voice data;

The node adjustment module 1003 is configured to: if the voice frame is a silent frame or no data frame, or the voice data included in the voice frame is invalid voice data, close the node of the audio downlink path.

Optionally, the determining module 1002 is specifically configured to:

Determining whether the format of the voice frame is a SID format or a No data format;

If the format of the voice frame is SID format or No data format, it is determined whether the voice frame is a silent frame or no data frame.

Optionally, the determining module 1002 is specifically configured to:

Determining whether the amplitude of the voice data included in the voice frame is lower than a set threshold;

If the amplitude of the voice data included in the voice frame is lower than a set threshold, it is determined that the voice data included in the voice frame is invalid voice data.

Optionally, the node of the audio downlink path includes an audio algorithm module, a digital-to-analog conversion module, and a voice play module, and the node adjustment module 1003 includes:

The first node adjustment module 10031 is configured to: close the audio algorithm module;

The second node adjustment module 10032 is configured to adjust the digital to analog conversion module to a low power mode;

The third node adjustment module 10033 is configured to close the voice play module.

Optionally, the audio algorithm module includes an echo suppression module, a noise reduction module, and a gain adjustment The first node adjustment module 10031 is specifically configured to: close the echo suppression module and the noise reduction module, and adjust a digital gain of the gain adjustment module to zero.

Optionally, the digital-to-analog conversion module includes a Codec chip, a SmartPA chip, and a HIFI chip, and the second node adjustment module 10032 is specifically configured to:

Turning off the DAC conversion function of the codec chip, adjusting the analog gain of the codec chip to zero, adjusting the SmartPA chip to a low power mode, and turning off the HIFI chip.

Optionally, the node adjustment module 1003 is further configured to: if the voice data included in the voice frame is voiced data, open a node of the audio downlink path.

It should be noted that the foregoing modules (the receiving module 1001, the determining module 1002, the node adjusting module 1003 (the first node adjusting module 10031, the second node adjusting module 10032, and the third node adjusting module 10033)) are used to perform the foregoing method. Related steps.

In the present embodiment, the terminal device 1000 is presented in the form of a module. A "module" herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other devices that provide the above functionality. . In addition, the above determining module 1002 and the node adjusting module 1003 can be implemented by the processor 1101 of the terminal device shown in FIG. 11, and the above receiving module 1001 can be implemented by the communication interface 1103 of the terminal device shown in FIG.

As shown in FIG. 11, the terminal device 1100 can be implemented in the structure of FIG. 11, which includes at least one processor 1101, at least one memory 1102, and at least one communication interface 1103. The processor 1101, the memory 1102, and the communication interface 1103 are connected by the communication bus and complete communication with each other.

The processor 1101 can be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the above program.

The communication interface 1103 is configured to communicate with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), and the like.

The memory 1102 can be a read-only memory (ROM) or can store static Other types of static storage devices for information and instructions, random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or electrically erasable programmable read-only memory (Electrically Erasable Programmable) Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disks A storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of an instruction or data structure and that can be accessed by a computer, but is not limited thereto. The memory can exist independently and be connected to the processor via a bus. The memory can also be integrated with the processor.

The memory 1102 is configured to store application code that executes the above solution, and is controlled by the processor 1101 to execute. The processor 1101 is configured to execute application code stored in the memory 1102.

The code stored in the memory 1102 can perform the above-mentioned adjustment method of the call audio node performed by the terminal device provided by the terminal device, for example, receiving a voice frame sent by the network side device; determining whether the voice frame is a silent frame or no data frame, or determining Whether the voice data included in the voice frame is invalid voice data; if the voice frame is a silent frame or no data frame, or the voice data included in the voice frame is invalid voice data, the node of the audio downlink path is closed.

The embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium can store a program, and the program includes some or all of the steps of the adjustment method of any of the call audio nodes described in the foregoing method embodiments.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

In several embodiments provided herein, it should be understood that the disclosed device may be It's way to achieve it. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a memory. A number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing memory includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like, which can store program codes.

A person skilled in the art can understand that all or part of the steps of the foregoing embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable memory, and the memory can include: a flash drive , read-only memory (English: Read-Only Memory, referred to as: ROM), random accessor (English: Random Access Memory, referred to as: RAM), disk or CD.

The embodiments of the present invention have been described in detail above, and specific examples are applied herein to the present invention. The principles and implementations are set forth, and the description of the above embodiments is only for helping to understand the method of the present invention and its core ideas; at the same time, for those skilled in the art, according to the idea of the present invention, in the specific embodiments and application scope There is a change in the above, and the contents of the present specification should not be construed as limiting the present invention.

Claims

A method for adjusting a call audio node, comprising:

Receiving a voice frame delivered by the network side device;

Determining whether the voice frame is a silent frame or no data frame, or determining whether the voice data included in the voice frame is invalid voice data;

If the voice frame is a silent frame or no data frame, or the voice data included in the voice frame is invalid voice data, the node of the audio downlink path is closed.
The method according to claim 1, wherein the determining whether the voice frame is a silent frame or a no data frame comprises:

Determining whether the format of the voice frame is a SID format or a No data format;

If the format of the voice frame is SID format or No data format, it is determined whether the voice frame is a silent frame or no data frame.
The method according to claim 1, wherein the determining whether the voice data included in the voice frame is invalid voice data comprises:

Determining whether the amplitude of the voice data included in the voice frame is lower than a set threshold;

If the amplitude of the voice data included in the voice frame is lower than a set threshold, it is determined that the voice data included in the voice frame is invalid voice data.
The method according to any one of claims 1-3, wherein the node of the audio downlink path comprises an audio algorithm module, a digital-to-analog conversion module and a voice play module, and the node for closing the audio downlink path comprises: Turning off the audio algorithm module, adjusting the digital to analog conversion module to a low power mode, and turning off the voice playback module.
The method according to claim 4, wherein the audio algorithm module comprises an echo suppression module, a noise reduction module and a gain adjustment module, and the closing the audio algorithm module comprises:

The echo suppression module and the noise reduction module are turned off, and the digital gain of the gain adjustment module is adjusted to zero.
The method according to claim 4, wherein the digital to analog conversion module comprises a Codec chip, a SmartPA chip and a HIFI chip, and the digital to analog conversion module is adjusted to a low power mode , including:

Turning off the DAC conversion function of the codec chip, adjusting the analog gain of the codec chip to zero, adjusting the SmartPA chip to a low power mode, and turning off the HIFI chip.
The method according to any one of claims 1 to 6, wherein the method further comprises:

If the voice data contained in the voice frame is voiced data, the node of the audio downlink path is opened.
A terminal device, comprising:

a receiving module, configured to receive a voice frame delivered by the network side device;

a determining module, configured to determine whether the voice frame is a silent frame or no data frame, or determine whether the voice data included in the voice frame is invalid voice data;

The node adjustment module is configured to close the node of the audio downlink path if the voice frame is a silent frame or no data frame, or the voice data included in the voice frame is invalid voice data.
The terminal device according to claim 8, wherein the determining module is specifically configured to:

Determining whether the format of the voice frame is a SID format or a No data format;

If the format of the voice frame is SID format or No data format, it is determined whether the voice frame is a silent frame or no data frame.
The terminal device according to claim 8, wherein the determining module is specifically configured to:

Determining whether the amplitude of the voice data included in the voice frame is lower than a set threshold;

If the amplitude of the voice data included in the voice frame is lower than a set threshold, it is determined that the voice data included in the voice frame is invalid voice data.
The terminal device according to any one of claims 8 to 10, wherein the node of the audio downlink path comprises an audio algorithm module, a digital-to-analog conversion module, and a voice playback module, and the node adjustment module includes:

The first node adjustment module is configured to close the audio algorithm module;

a second node adjustment module is configured to adjust the digital to analog conversion module to a low power mode;

The third node adjustment module is configured to close the voice play module.
The terminal device according to claim 11, wherein the audio algorithm module comprises an echo suppression module, a noise reduction module and a gain adjustment module, and the first node adjustment module has The body is configured to: close the echo suppression module and the noise reduction module, and adjust a digital gain of the gain adjustment module to zero.
The terminal device according to claim 11, wherein the digital-to-analog conversion module comprises a Codec chip, a SmartPA chip and a HIFI chip, and the second node adjustment module is specifically configured to:

Turning off the DAC conversion function of the codec chip, adjusting the analog gain of the codec chip to zero, adjusting the SmartPA chip to a low power mode, and turning off the HIFI chip.
A terminal device according to any one of claims 8 to 13, characterized in that

The node adjustment module is further configured to: if the voice data included in the voice frame is voiced data, open a node of the audio downlink path.
A terminal device, comprising:

a memory storing executable program code;

a processor coupled to the memory;

The processor invokes the executable program code stored in the memory to perform the method of any one of claims 1 to 7.