CN112712815A - Software-based pop sound suppression method, terminal and computer readable medium - Google Patents
Software-based pop sound suppression method, terminal and computer readable medium Download PDFInfo
- Publication number
- CN112712815A CN112712815A CN202011526072.1A CN202011526072A CN112712815A CN 112712815 A CN112712815 A CN 112712815A CN 202011526072 A CN202011526072 A CN 202011526072A CN 112712815 A CN112712815 A CN 112712815A
- Authority
- CN
- China
- Prior art keywords
- audio
- volume
- software
- suppressing
- pop sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 57
- 230000001629 suppression Effects 0.000 title description 9
- 230000008859 change Effects 0.000 claims abstract description 42
- 238000012545 processing Methods 0.000 claims abstract description 29
- 230000006870 function Effects 0.000 claims description 35
- 238000013507 mapping Methods 0.000 claims description 4
- 238000005562 fading Methods 0.000 claims 6
- 230000008569 process Effects 0.000 description 15
- 238000004891 communication Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a method for suppressing pop sound based on software, a terminal and a computer readable medium, wherein the method comprises the following steps: when an audio playing start or stop instruction is monitored, acquiring the current volume of the audio; and carrying out gradual change processing on the volume of the audio by adopting a volume gradual change step length according to the current volume of the audio. According to the technical scheme, when the audio playing start or stop instruction is monitored, the current volume of the audio is obtained, and the volume of the audio is subjected to gradual change processing by adopting the volume gradual change step length according to the current volume of the audio, so that the volume of the audio is gentle and excessive, and the pop sound at the audio playing start or stop stage is effectively suppressed.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, a terminal, and a computer-readable medium for suppressing a pop tone based on software.
Background
pop sound is a plosive generated at the moment when audio is played, and is also a kind of noise. The noise is sharp, and brings very poor auditory sensation to the ears, and also brings damage to the hearing after a long-term use. pop sounds are mostly generated by hardware, and the audio device generates transient impact at the moment of powering on and powering off, so as to generate pop sounds, and such pop sounds are generally solved by modifying the power-on timing of the codec or adding capacitance in the circuit.
However, another pop is generated by software, and at the beginning or end of a section of audio, the sound signal is just cut off, the amplitude of the sound is suddenly changed suddenly, the energy of the sound is suddenly released or accumulated in a short time, and the sound effect is a section of similar 'explosion sound', and the sound is similar to the pop sound effect generated by hardware, and the pop sound effect is also brought to the human ear, so that the hearing of a listener is damaged. However, such pop tones cannot be suppressed or eliminated by hardware circuits.
When a pop sound is processed by a hardware circuit, the purpose of suppressing transient impact is achieved by changing the power-on timing sequence of each module or introducing a capacitor into the circuit, which is to alleviate the sudden accumulation or release of energy when a device is powered on or powered off.
The pop sound generated by the software is also in essence of abrupt volume change at the beginning or the end of the audio, so that the abrupt volume change is 'buffered' by the software, and the suppression of the pop sound is possible.
Disclosure of Invention
The invention mainly aims to provide a method, a terminal and a computer readable medium for suppressing pop sound based on software, aiming at effectively realizing the suppression of the pop sound.
In order to achieve the above object, the method for suppressing pop sound based on software according to the present invention comprises the following steps:
when an audio playing start or stop instruction is monitored, acquiring the current volume of the audio;
and carrying out gradual change processing on the volume of the audio by adopting a volume gradual change step length according to the current volume of the audio.
Optionally, when an audio play start instruction is monitored, the step of acquiring the current volume of the audio includes:
when the fact () function is monitored to be called, the getStreamVolume () function is called;
reading the current volume of the audio from the getStreamVolume () function.
Optionally, when an audio stop instruction is monitored, the step of obtaining the current volume of the audio includes:
when the stop () function is monitored to be called, calling the getStreamVolume () function;
reading the current volume of the audio from the getStreamVolume () function.
Optionally, the step of performing a gradual change process on the volume of the audio by using a volume gradual change step size according to the current volume of the audio includes:
acquiring the corresponding volume gradual change step length according to the current volume of the audio;
and performing gradient processing on the volume of the audio frequency by adopting the volume gradient step length.
Optionally, the step of obtaining the corresponding volume gradient step size according to the current volume of the audio includes:
and searching the volume gradual change step length corresponding to the current volume of the audio in a preset mapping relation table according to the current volume of the audio.
Optionally, the step of performing a gradual change process on the volume of the audio by using a volume gradual change step size according to the current volume of the audio includes:
acquiring the volume gradual change step length;
calculating the volume gradient times according to the current volume of the audio and the volume gradient step length;
and carrying out equal-step-length gradient processing on the volume of the audio frequency for a plurality of times of volume gradient by adopting the volume gradient step length.
Optionally, when an audio play start instruction is monitored, the step of performing fade processing on the volume of the audio includes:
and carrying out gradual enhancement processing on the volume of the audio.
Optionally, when an audio stop instruction is monitored, the step of performing fade processing on the volume of the audio includes:
and gradually attenuating the volume of the audio.
In addition, the present invention further provides a terminal, including a memory, a processor, and a program for implementing the method for suppressing the pop sound based on the software, stored in the memory and operable on the processor, wherein the program for implementing the method for suppressing the pop sound based on the software is executed by the processor, and includes the following steps:
when an audio playing start or stop instruction is monitored, acquiring the current volume of the audio;
and carrying out gradual change processing on the volume of the audio by adopting a volume gradual change step length according to the current volume of the audio.
Furthermore, the present invention also provides a computer-readable medium having stored thereon a program for implementing a method for suppressing a software-based pop sound, the program for implementing the method for suppressing a software-based pop sound implementing the steps of:
when an audio playing start or stop instruction is monitored, acquiring the current volume of the audio;
and carrying out gradual change processing on the volume of the audio by adopting a volume gradual change step length according to the current volume of the audio.
According to the technical scheme, when the audio playing start or stop instruction is monitored, the current volume of the audio is obtained, and the volume of the audio is subjected to gradual change processing by adopting the volume gradual change step length according to the current volume of the audio, so that the volume of the audio is gentle and excessive, and the pop sound at the audio playing start or stop stage is effectively suppressed.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention;
fig. 2 is a diagram of a communication network system architecture according to an embodiment of the present invention;
FIG. 3 is a flowchart of a first embodiment of a method for suppressing a pop tone based on software according to the present invention;
FIG. 4 is a flowchart of a second embodiment of the method for suppressing pop sound based on software according to the present invention;
FIG. 5 is a flowchart of a first embodiment of the step of performing a fade process on the volume of the audio with a volume fade step size according to the current volume of the audio shown in FIG. 3;
fig. 6 is a flowchart of a second embodiment of the step of performing a fade process on the volume of the audio by using a volume fade step according to the current volume of the audio shown in fig. 3.
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 mobile terminals such as a mobile terminal, 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 fixed terminals 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), detect the magnitude and direction of gravity when stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration) for recognizing the attitude of the mobile terminal, and related functions (such as pedometer and tapping) for vibration recognition; 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 terminal, 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 mobile terminal, 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, where 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 Rules Function) 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.
As shown in fig. 3, fig. 3 is a flowchart of a first embodiment of a method for suppressing pop sound based on software according to the present invention.
In this embodiment, the method for suppressing pop sound based on software includes the following steps:
step S110, an audio play start instruction is monitored.
And step S120, acquiring the current volume of the audio.
And step S130, performing gradient processing on the volume of the audio by adopting a volume gradient step length according to the current volume of the audio.
The technical scheme of this embodiment is mainly applied to the suppression of pop sound in mobile terminals (for example, smart phones, tablet computers, etc.), and the technical scheme adopted is mainly based on the improvement of system soft layer parts of the mobile terminals, and the implementation principle is as follows: a fade process for the volume is added to the start () function.
Specifically, in this embodiment, when the audio playing software in the mobile terminal starts playing the audio, a start () function at the system level of the mobile terminal is called to modify the audio into a playing state. And when the start () function is monitored to be called, calling a getStreamVolume () function to acquire the current volume of the audio. After the current volume of the audio is obtained, according to the current volume of the audio, performing gradual enhancement processing on the volume of the audio by using a volume gradual step (specifically, for example, when an audio playing start instruction is monitored, the obtained current volume of the audio is a, then the volume gradual step is used, so that the volume of the audio is smoothly gradually changed from 0 to a), so that the volume of the audio is gradually and excessively increased.
According to the technical scheme, when the audio playing start instruction is monitored, the current volume of the audio is obtained, and according to the current volume of the audio, the volume of the audio is subjected to gradual change processing by adopting the volume gradual change step length, so that the volume of the audio is moderate and excessive, and the pop sound at the audio playing start stage is effectively suppressed.
As shown in fig. 4, fig. 4 is a flowchart of a second embodiment of the pop sound suppression method based on software according to the present invention.
In this embodiment, the method for suppressing pop sound based on software includes the following steps:
step S210, an audio stop instruction is monitored.
Step S220, obtaining the current volume of the audio.
And step S230, performing gradient processing on the volume of the audio by adopting a volume gradient step length according to the current volume of the audio.
The technical scheme of this embodiment is mainly applied to the suppression of pop sound in mobile terminals (for example, smart phones, tablet computers, etc.), and the technical scheme adopted is mainly based on the improvement of system soft layer parts of the mobile terminals, and the implementation principle is as follows: a fade process for the volume is added to the stop () function.
Specifically, in this embodiment, when the audio playing software in the mobile terminal stops playing the audio, the stop () function of the system level of the mobile terminal is called to modify the audio into a stop state. And when the stop () function is monitored to be called, calling a getStreamVolume () function to acquire the current volume of the audio. After the current volume of the audio is obtained, gradually attenuating the volume of the audio by using a volume gradual step according to the current volume of the audio (specifically, for example, when an audio playing stop instruction is monitored, the obtained current volume of the audio is a, then the volume gradual step is used, so that the volume of the audio is smoothly gradually changed from a to 0), so that the volume of the audio is gradually and excessively increased.
According to the technical scheme, when the audio stop instruction is monitored, the current volume of the audio is obtained, and according to the current volume of the audio, the volume of the audio is subjected to gradual change processing by adopting the volume gradual change step length, so that the volume of the audio is moderate and excessive, and the pop sound at the audio stop stage is effectively suppressed.
Further, as shown in fig. 5, fig. 5 is a flowchart of a step of performing a gradual change process on the volume of the audio by using a volume gradual change step according to the current volume of the audio, shown in fig. 3. Based on any one of the above embodiments, in this embodiment, the step of performing a fade process on the volume of the audio by using a volume fade step size according to the current volume of the audio includes:
step S311, obtaining the corresponding volume gradual step according to the current volume of the audio.
And step S312, performing gradient processing on the volume of the audio by adopting the volume gradient step length.
Specifically, in this embodiment, when an audio play start or stop instruction is monitored, the current volume of the audio is obtained. And then, according to the current volume of the audio, searching the volume gradual change step length corresponding to the current volume of the audio in a preset mapping relation table. The mapping relation table is pre-stored in a storage space of the mobile terminal, and includes a corresponding relation between the current volume of the audio and the volume gradual change step length, for example, volume a corresponds to volume gradual change step length a, volume B corresponds to volume gradual change step length B, and the like. When the current volume of the acquired audio is A, carrying out gradient processing on the volume of the audio by adopting a volume gradient step length a, and then realizing the suppression of pop sound.
Further, as shown in fig. 6, fig. 6 is a flowchart of a second embodiment of the step of performing a gradual change process on the volume of the audio by using a volume gradual change step according to the current volume of the audio, shown in fig. 3. Based on any one of the above embodiments, in this embodiment, the step of performing a fade process on the volume of the audio by using a volume fade step size according to the current volume of the audio includes:
step S321, obtaining the volume gradual change step.
Step S322, calculating a volume gradient number according to the current volume of the audio and the volume gradient step.
And step S323, carrying out equal step size gradient processing on the volume of the audio frequency for a plurality of times of volume gradient by adopting the volume gradient step size.
Specifically, in this embodiment, when an audio play start or stop instruction is monitored, the current volume of the audio and the volume gradual change step length are obtained. Then, calculating the volume gradient times according to the current volume of the audio and the volume gradient step length; the value of the volume fade number is equal to the current volume of the audio divided by the volume fade step. And finally, carrying out equal-step-length gradient processing on the volume of the audio frequency for a plurality of times of volume gradient by adopting the volume gradient step length. Specifically, for example, the current volume of the audio is C, the volume gradient step is C, and the value N of the volume gradient frequency is equal to C/C equal to 3; then, the current volume C of the audio is subjected to gradual change processing for 3 times by adopting the volume gradual change step length C, so that the pop sound can be suppressed.
The invention also provides a terminal, which comprises a memory, a processor and an implementation program of the method for suppressing the pop sound based on the software, wherein the implementation program is stored on the memory and can run on the processor, and when being executed by the processor, the implementation program of the method for suppressing the pop sound based on the software realizes all the steps in the embodiment of the method for suppressing the pop sound based on the software. Since the terminal can execute all the steps in any of the above embodiments, the mobile terminal at least has all the beneficial effects brought by the technical solutions of the above method embodiments, and details are not repeated here.
The present invention also provides a computer-readable medium having stored thereon a program for implementing a method for suppressing a software-based pop sound, which, when executed, can implement all the steps of any of the above embodiments. Since the computer-readable medium can execute all the steps in any of the above embodiments, the computer-readable medium at least has all the advantages brought by the technical solutions of the above method embodiments, and details are not repeated herein.
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 terminal, 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 (10)
1. A method for suppressing pop sound based on software is characterized by comprising the following steps:
when an audio playing start or stop instruction is monitored, acquiring the current volume of the audio;
and carrying out gradual change processing on the volume of the audio by adopting a volume gradual change step length according to the current volume of the audio.
2. The method for suppressing a software-based pop sound of claim 1, wherein when an audio play start command is monitored, the step of obtaining the current volume of the audio comprises:
when the fact () function is monitored to be called, the getStreamVolume () function is called;
reading the current volume of the audio from the getStreamVolume () function.
3. The method for suppressing a software-based pop sound of claim 1, wherein when an audio stop command is monitored, the step of obtaining the current volume of the audio comprises:
when the stop () function is monitored to be called, calling the getStreamVolume () function;
reading the current volume of the audio from the getStreamVolume () function.
4. The method for suppressing a software-based pop sound as set forth in claim 1, wherein the step of fading the volume of the audio with a volume fading step size according to the current volume of the audio comprises:
acquiring the corresponding volume gradual change step length according to the current volume of the audio;
and performing gradient processing on the volume of the audio frequency by adopting the volume gradient step length.
5. The method for suppressing a software-based pop sound as claimed in claim 4, wherein the step of obtaining the corresponding volume gradient step according to the current volume of the audio comprises:
and searching the volume gradual change step length corresponding to the current volume of the audio in a preset mapping relation table according to the current volume of the audio.
6. The method for suppressing a software-based pop sound as set forth in claim 1, wherein the step of fading the volume of the audio with a volume fading step size according to the current volume of the audio comprises:
acquiring the volume gradual change step length;
calculating the volume gradient times according to the current volume of the audio and the volume gradient step length;
and carrying out equal-step-length gradient processing on the volume of the audio frequency for a plurality of times of volume gradient by adopting the volume gradient step length.
7. The method for suppressing a pop sound based on software as claimed in claim 1, wherein the step of fading the volume of the audio when an audio play start command is monitored comprises:
and carrying out gradual enhancement processing on the volume of the audio.
8. The method for suppressing a software-based pop sound of claim 1, wherein the step of fading the volume of the audio when an audio stop command is monitored comprises:
and gradually attenuating the volume of the audio.
9. A terminal comprising a memory, a processor, and a program for implementing a method for suppressing a software-based pop sound stored in the memory and executable on the processor, wherein the program for implementing a method for suppressing a software-based pop sound implements the steps of the method for suppressing a software-based pop sound according to any one of claims 1 to 8 when executed by the processor.
10. A computer-readable medium, characterized in that the computer-readable medium has stored thereon a program for implementing a method for suppressing a software-based pop sound, which when executed, implements the steps of the method for suppressing a software-based pop sound as recited in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011526072.1A CN112712815A (en) | 2020-12-22 | 2020-12-22 | Software-based pop sound suppression method, terminal and computer readable medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011526072.1A CN112712815A (en) | 2020-12-22 | 2020-12-22 | Software-based pop sound suppression method, terminal and computer readable medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112712815A true CN112712815A (en) | 2021-04-27 |
Family
ID=75545030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011526072.1A Pending CN112712815A (en) | 2020-12-22 | 2020-12-22 | Software-based pop sound suppression method, terminal and computer readable medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112712815A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114115793A (en) * | 2021-12-01 | 2022-03-01 | 维沃移动通信有限公司 | Audio adjusting method and audio adjusting device |
| CN114339446A (en) * | 2021-12-28 | 2022-04-12 | 北京百度网讯科技有限公司 | Audio and video editing method, device, equipment, storage medium and program product |
-
2020
- 2020-12-22 CN CN202011526072.1A patent/CN112712815A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114115793A (en) * | 2021-12-01 | 2022-03-01 | 维沃移动通信有限公司 | Audio adjusting method and audio adjusting device |
| CN114339446A (en) * | 2021-12-28 | 2022-04-12 | 北京百度网讯科技有限公司 | Audio and video editing method, device, equipment, storage medium and program product |
| CN114339446B (en) * | 2021-12-28 | 2024-04-05 | 北京百度网讯科技有限公司 | Audio/video editing method, device, equipment, storage medium and program product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108572764B (en) | Character input control method and device and computer readable storage medium | |
| CN109701266B (en) | Game vibration method, device, mobile terminal and computer readable storage medium | |
| CN109144441B (en) | Screen adjusting method, terminal and computer readable storage medium | |
| CN107979667B (en) | Dual-screen display method, mobile terminal and computer-readable storage medium | |
| CN110187808B (en) | Dynamic wallpaper setting method and device and computer-readable storage medium | |
| CN112261535A (en) | Major-minor switching method and device for wireless earphone and readable storage medium | |
| CN112637410A (en) | Method, terminal and storage medium for displaying message notification | |
| CN112712815A (en) | Software-based pop sound suppression method, terminal and computer readable medium | |
| CN112437472B (en) | Network switching method, equipment and computer readable storage medium | |
| CN107566631B (en) | Volume control method, mobile terminal and computer readable storage medium | |
| CN112102780B (en) | Display frame rate regulation and control method, device and computer readable storage medium | |
| CN112888084A (en) | Full-band communication method and device and mobile terminal | |
| CN112667339A (en) | Method for setting screen refresh rate, terminal and computer readable medium | |
| CN112423211A (en) | Multi-audio transmission control method, equipment and computer readable storage medium | |
| CN109683796B (en) | Interaction control method, equipment and computer readable storage medium | |
| CN109561221B (en) | Call control method, device and computer readable storage medium | |
| CN111970738A (en) | Network switching control method, equipment and computer readable storage medium | |
| CN109151201B (en) | Anti-addiction method, mobile terminal and computer storage medium | |
| CN108897451B (en) | Main and auxiliary display screen identification method, mobile terminal and computer readable storage medium | |
| CN110955397A (en) | Method for setting frame rate of game terminal, game terminal and storage medium | |
| CN107404568B (en) | Control switch management method and mobile terminal | |
| CN115086479A (en) | Terminal control method, intelligent terminal and storage medium | |
| CN114253687A (en) | Multi-window leakage processing method and device and computer readable storage medium | |
| CN114307136A (en) | Game screen-throwing power consumption control method and device and computer readable storage medium | |
| CN110262707B (en) | Application program operation recording method and device and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |