CN110896420B - Current sound eliminating method and device and storage medium - Google Patents
Current sound eliminating method and device and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
Abstract
The embodiment of the invention discloses a current sound elimination method, which comprises the following steps: determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set; wherein the current sound curing parameter set comprises at least one current sound curing parameter, the current sound curing parameter characterizes background noise current sounds introduced by at least one component in the terminal equipment, and the first type of current sound curing parameter characterizes all background noise current sounds contained in the audio digital signal; and eliminating all background current sounds in the audio digital signal based on the first type of current sound curing parameters. The embodiment of the invention also discloses a current sound eliminating device and a storage medium.
Description
Technical Field
The present invention relates to communications technologies, and in particular, to a current tone cancellation method, a current tone cancellation apparatus, and a storage medium.
Background
With the development of communication technology, the requirement on the call quality is higher and higher, and the existence of current sound has a serious influence on the call quality. The generation of current sound has several aspects, one is (uplink) background noise introduced by mic during conversation, and the current sound is brought to the receiver; one is introduced by a radio frequency circuit, a charging circuit and a power supply chip, and the current sound (downlink) heard by a speaker at a Receiver is heard by the speaker. At present, for current sound introduced by a mic, background noise of a caller environment can be reduced by reducing noise through dual mics (abbreviation of Microphone), and noise is reduced through two mics (main mic and auxiliary mic) of a mobile phone, so that background noise of the phone call environment is eliminated, and the definition of the voice of the caller is improved. However, the noise reduction method can only process the current sound mainly concentrated in TDD noise (217Hz and its harmonics) during the call, and there is no solution for the background noise current sound caused by the interference of the power frequency signal introduced by the hardware circuit of the mobile phone terminal, because the background noise current sound introduced by the mobile phone is not introduced by the background noise of the call environment.
For background noise current sound introduced by a mobile phone, such as current sound introduced by a power chip, a charging circuit and the like, the method in the industry is to replace a circuit until the background noise current sound disappears or is weakened, so that the noise reduction cost is high. Therefore, how to eliminate the background noise more economically and effectively has become an urgent technical problem to be solved in the communication field.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention desirably provide a current tone cancellation method, apparatus, and storage medium, which eliminate a background noise current tone introduced by a hardware circuit of a mobile terminal itself and improve call quality.
The technical scheme of the invention is realized in such a way, and the embodiment of the invention provides a current tone elimination method, which comprises the following steps:
acquiring an audio digital signal of terminal equipment;
determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set; wherein the current sound curing parameter set comprises at least one current sound curing parameter, the current sound curing parameter characterizes background noise current sounds introduced by at least one component in the terminal equipment, and the first type of current sound curing parameter characterizes all background noise current sounds contained in the audio digital signal;
and eliminating all background current sounds in the audio digital signal based on the first type of current sound curing parameters.
In the foregoing solution, the determining a first type of current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set includes: determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set based on the current environment parameter of the terminal equipment; and the current sound curing parameter set also comprises the corresponding relation between the current sound curing parameters and the environment parameters.
In the above solution, the environmental parameter includes at least one of: signal strength parameters, charge indication parameters.
In the above scheme, the method for setting the current-sound curing parameter set includes: collecting background noise current sound introduced by at least one component in the terminal equipment; performing time domain analysis and/or frequency domain analysis on each bottom noise current tone to obtain current tone curing parameters corresponding to each bottom noise current tone; and establishing a current sound curing parameter set by using all the obtained current sound curing parameters.
In the above scheme, the method further comprises: and updating the current sound solidification parameter set.
In the foregoing solution, the updating the current sound curing parameter set includes: and updating the current sound solidification parameter set when a preset time interval is reached or when an updating instruction is detected.
The embodiment of the invention also provides a current sound eliminating device, which is characterized in that the equipment comprises: a processor and a memory; wherein the content of the first and second substances,
acquiring an audio digital signal of terminal equipment;
determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set; wherein the current sound curing parameter set comprises at least one current sound curing parameter, the current sound curing parameter characterizes background noise current sounds introduced by at least one component in the terminal equipment, and the first type of current sound curing parameter characterizes all background noise current sounds contained in the audio digital signal;
and eliminating all background current sounds in the audio digital signal based on the first type of current sound curing parameters.
In the foregoing solution, the processor is specifically configured to execute a current tone cancellation program stored in the memory, so as to implement the following steps: determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set based on the current environment parameter of the terminal equipment; and the current sound curing parameter set also comprises the corresponding relation between the current sound curing parameters and the environment parameters.
In the above solution, the environmental parameter includes at least one of: signal strength parameters, charge indication parameters.
In the foregoing solution, the processor is specifically configured to execute a current tone cancellation program stored in the memory, so as to implement the following steps: collecting background noise current sound introduced by at least one component in the terminal equipment; performing time domain analysis and/or frequency domain analysis on each bottom noise current tone to obtain current tone curing parameters corresponding to each bottom noise current tone; and establishing a current sound curing parameter set by using all the obtained current sound curing parameters.
In the foregoing solution, the processor is further configured to execute a current tone cancellation program stored in the memory, so as to implement the following steps: and updating the current sound solidification parameter set.
In the foregoing solution, the processor is specifically configured to execute a current sound cancellation program stored in the memory, so as to implement the following steps: and updating the current sound solidification parameter set when a preset time interval is reached or when an updating instruction is detected.
There is also provided in an embodiment of the present invention a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the method of any one of the preceding claims.
According to the current sound elimination method, the current sound elimination device and the storage medium provided by the embodiment of the invention, a first class current sound solidification parameter corresponding to the audio digital signal is determined from a preset current sound solidification parameter set; wherein the current sound curing parameter set comprises at least one current sound curing parameter, the current sound curing parameter characterizes background noise current sounds introduced by at least one component in the terminal equipment, and the first type of current sound curing parameter characterizes all background noise current sounds contained in the audio digital signal; and eliminating all background current sounds in the audio digital signal based on the first type of current sound curing parameters.
By adopting the technical scheme, all the bottom noise current sounds in the audio digital signals are eliminated according to the current sound solidification parameters set in the terminal equipment before the audio digital signals are converted into the analog signals, namely, the bottom noise current sounds introduced by the hardware circuit of the mobile terminal are eliminated, and the quality of the output audio signals is ensured.
Drawings
Fig. 1 is a schematic flow chart of a first embodiment of a current tone cancellation method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating classification of current sound curing parameters according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a structure of a terminal device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a structure of an intelligent speech processing module according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a second embodiment of a current tone cancellation method according to the present invention;
fig. 6 is a schematic structural diagram of the current noise canceling device according to the embodiment of the present invention.
Detailed Description
So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.
Example one
As shown in fig. 1, the current tone cancellation method includes:
step 101: acquiring an audio digital signal of terminal equipment;
step 102: determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set; the current sound curing parameter set comprises at least one current sound curing parameter, the current sound curing parameter represents the background noise current sound introduced by at least one component in the terminal equipment, and the first type of current sound curing parameter represents all background noise current sounds contained in the audio digital signal;
step 103: all background current tones in the audio digital signal are cancelled based on the first type of current tone curing parameter.
Here, the main body of execution of steps 101 to 103 may be a processor of the terminal device, or a processor of the current tone cancellation device.
In an embodiment of the present invention, the noise-floor current tone includes a current tone introduced by at least one component in the terminal device, that is, a current tone introduced by a hardware circuit of the terminal device. For example, terminal device motherboard noise, charging loop noise, etc.
It should be noted that, the existing processing of the noise reduction algorithm of the voice noise reduction bias voice input end, the processing of the signal of the 217Hz frequency band of the TDD noise in the audio data, the improved design of the hardware circuit when the bias voice is input, and when the noise is suppressed from the source through the input end, because the sources of the current sound are various, all possible current sound sources can not be considered in the prior art. The noise is suppressed through the input end, and the current sound introduced by the hardware circuit of the terminal in the voice digital signal processing process is not processed, namely the current sound existing in the voice signal of the last kilometer processed by the voice signal is not processed and subjected to noise reduction. The method and the device mainly perform noise reduction processing from the voice analog signal output link at the tail end, so that the background noise current sound introduced by the terminal is eliminated or weakened, and the conversation quality is improved.
That is to say, the audio digital signal is an audio digital signal obtained when the terminal device performs digital-to-analog conversion in the prior art, and all the noise-floor current sounds in the audio digital signal are eliminated at the very end of the audio digital signal processing.
In practical applications, step 102 may specifically include: determining a first type of current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set based on the current environment parameter of the terminal equipment; and the current sound curing parameter set also comprises the corresponding relation between the current sound curing parameters and the environment parameters. The environmental parameters are used for indicating the influence factors of the introduction of the background noise current sound by the terminal equipment. Illustratively, the environmental parameter comprises at least one of: signal strength parameters, charge indication parameters.
Here, in the process of outputting the voice signal by the terminal device, different current sounds may be introduced into at least one component of the terminal device in different application scenarios, and therefore, in the embodiment of the present invention, corresponding current sound curing parameters need to be set for at least one component of the terminal device according to different application scenarios.
Further, different application scenarios may be characterized by using an environmental parameter, and the environmental parameter corresponding to at least one component of the terminal device is determined under one environmental parameter.
As shown in fig. 2, the current-sound curing parameter set includes a corresponding relationship between the environmental parameter and the current-sound curing parameter, for example, in an application scenario with different signal intensities, the 1 st signal intensity corresponds to the 1 st current-sound curing parameter, the 2 nd signal intensity corresponds to the 2 nd current-sound curing parameter, the nth signal intensity corresponds to the nth current-sound curing parameter, and N is a positive integer; wherein, the 1 st current sound curing parameter may specifically further include: the method comprises the following steps of 1 st mainboard current sound curing parameter for representing current sound introduced by a mainboard, and 1 st charging loop current sound curing parameter for representing current sound introduced by a charging loop under the charging condition. In the embodiment of the invention, the current tone elimination precision can be improved and the output quality of the voice signal can be improved by setting the corresponding current tone curing parameters for different application scenes.
In practical application, the method for setting the current sound curing parameter set comprises the following steps: collecting background noise current sound introduced by at least one component in the terminal equipment; performing time domain analysis and/or frequency domain analysis on each bottom noise current tone to obtain current tone curing parameters corresponding to each bottom noise current tone; and establishing a current sound curing parameter set by using all the obtained current sound curing parameters. Here, the at least one component may be a current tone introduced by a single component, such as a motherboard capacitance; or a plurality of components are combined into a current sound introduced by a loop, such as a charging loop.
For example, when the terminal device is factory set, the current sound analog signal introduced by each hardware circuit or each component is detected, the time domain parameter and/or the frequency domain parameter of the current sound is determined by performing time domain analysis and/or frequency domain analysis on the analog signal, and the time domain parameter and/or the frequency domain parameter of each current sound is solidified into a current sound solidification parameter representing the current sound.
In practical application, the method further comprises the following steps: and updating the current sound solidification parameter set. Further, the current sound curing parameter set is updated when a preset time interval is reached or when an update instruction is detected. Here, the preset time interval may be one month, three months, six months, or one year, and the update instruction may be a user operation instruction, or a background update instruction.
It should be noted that, in the using process of the terminal device, the current sound parameter may change due to aging of the device, and when subjective feeling of the user on the current sound of the terminal device becomes obvious, the operation of updating the curing parameter may be started in the setting menu item to complete the operation of updating the curing parameter of the current sound, so as to reduce the situation that the aging of the device deteriorates the current sound eliminating effect.
The algorithm is a processing method for reducing current sound by combining dynamic and static data, is not limited to processing of GSM TDD 217Hz and local processing after exceeding of certain frequency amplitude, but is used for deleting or weakening all background noise current sound which can be sensed by a user, so that the effect of no distortion of voice is achieved.
Illustratively, step 103 may specifically include: and performing signal superposition on the audio digital signal and the current sound signal represented by the first class of current sound curing parameters by using a superposition cancellation algorithm, and eliminating the background noise current sound in the audio digital signal so as to actively eliminate the current sound introduced by the terminal equipment.
In practical applications, step 103 may further include: converting the processed audio digital signal into an audio analog signal and outputting the audio analog signal; here, the processed audio digital signal is a digital signal obtained after eliminating all of the noise-free current noise in the audio digital signal. Furthermore, the audio analog signal is amplified by the amplifier and then output by the receiver. That is to say, the embodiment of the present invention adds the current tone elimination module at the end of the audio digital signal processing of the terminal device, so that each stage of current tones introduced by the terminal device itself can be eliminated, and the output quality of the audio signal is ensured.
Fig. 3 is a schematic diagram of a composition structure of a terminal device in an embodiment of the present invention, where the terminal device includes: a smart speech processing module 31, an earpiece 32 and a controller 33. The intelligent voice processing module 31 is configured to receive an audio digital signal transmitted by a previous stage, and eliminate a noise-floor current in the audio signal; the intelligent voice processing module 31 may further include a digital-to-analog conversion function and a power amplification function, and is configured to convert the audio digital signal into an analog signal, amplify the power of the analog signal, and output the analog signal to the receiver 32, where the receiver 32 outputs the audio analog signal; the controller 33 controls the intelligent voice processing module 31 to perform audio digital signal processing through a control signal. The current sound eliminating function can be directly carried in the digital audio decoding and amplifying device to form an intelligent voice processing module, and the space occupation of a PCB (printed circuit board) is saved.
Further, fig. 4 is a schematic diagram of a composition structure of the intelligent speech processing module in the embodiment of the present invention, where the intelligent speech processing module 31 includes: a sampling module 311, an analysis module 312, a storage module 313, a current tone cancellation module 314, and an output processing module 315. The sampling module 311 is configured to collect an audio analog signal of a bottom noise current sound of a terminal device, the analyzing module 312 is configured to perform time domain and/or frequency domain analysis on the audio analog signal, screen out current sound curing parameters from an analysis result, the storage module 313 is configured to store a plurality of generated current sound curing parameters, the current sound eliminating module 314 is configured to eliminate all bottom noise current sounds in an audio digital signal based on the current sound curing parameters in the storage module 313, and the output processing module 315 is configured to perform operations such as digital-to-analog conversion and power amplification on an optimized audio digital signal.
According to the technical scheme provided by the embodiment of the invention, the first class current sound curing parameters corresponding to the audio digital signals are determined from a preset current sound curing parameter set; wherein the current sound curing parameter set comprises at least one current sound curing parameter, the current sound curing parameter characterizes background noise current sounds introduced by at least one component in the terminal equipment, and the first type of current sound curing parameter characterizes all background noise current sounds contained in the audio digital signal; and eliminating all background current sounds in the audio digital signal based on the first type of current sound curing parameters.
By adopting the technical scheme, all the bottom noise current sounds in the audio digital signals are eliminated according to the current sound solidification parameters set in the terminal equipment before the audio digital signals are converted into the analog signals, namely, the bottom noise current sounds introduced by the hardware circuit of the mobile terminal are eliminated, and the quality of the output audio signals is ensured.
Example two
To further illustrate the object of the present invention, based on the first embodiment of the present invention, as shown in fig. 5, the network connection method specifically includes:
step 501: judging whether the current sound curing parameter set needs to be updated, if so, executing a step 502; if not, go to step 505.
It should be noted that, in the using process of the terminal device, due to the aging of the device, the current sound parameter may change, and when the subjective feeling of the user on the current sound of the terminal device becomes obvious, the operation of updating the curing parameter set may be started in the setting menu item to complete the operation of updating the current sound curing parameter set, so as to reduce the situation that the current sound eliminating effect is deteriorated due to the aging of the device.
Here, the determining method includes determining whether a preset update time interval is reached or whether an update instruction is detected, and if so, executing the update current sound curing parameter set from step 502 to step 504; if not, indicating that the update operation is not required at this time, step 505 is performed directly.
Step 502: and acquiring an audio analog signal output by the terminal equipment.
For example, a terminal device may play a blank waveform audio file, that is, a completely silent file, and then the volume of the bar player is adjusted to the maximum, so as to collect a bottom noise current sound analog signal generated by the terminal device itself.
Step 503: and carrying out data analysis on the audio analog signals, and screening out parameters corresponding to the background noise current tones.
Illustratively, by performing time domain analysis and/or frequency domain analysis on the collected audio analog signals, the time domain distribution and the frequency domain distribution of the audio signals are determined, and parameters corresponding to the current noise of the terminal device are screened out from the time domain distribution and the frequency domain distribution, wherein the parameters may include the frequency and the amplitude of the current sound signal.
Step 504: and updating the current sound solidification parameter set.
Illustratively, the filtered current sound parameters are used to update the corresponding historical current sound curing parameters in the set.
Step 505: and acquiring an audio digital signal of the terminal equipment.
Here, the audio digital signal is an audio digital signal obtained when the terminal device performs digital-to-analog conversion in the prior art, and all the bottom noise current sounds in the audio digital signal are eliminated at the very end of the audio digital signal processing.
Step 506: and determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set.
Specifically, based on the environmental parameters (such as the current signal strength, whether a charging instruction exists, and the like) when the audio digital signal is obtained, the first type current sound curing parameter corresponding to the audio digital signal is determined from at least one preset current sound curing parameter.
Step 507: and eliminating all background noise current sounds represented by the first type of current sound solidification parameters in the audio digital signal by using a superposition cancellation algorithm.
Here, the superposition cancellation algorithm may also cycle at least M times, where M is a positive integer, to ensure the cancellation effect of the current sound.
Step 508: the audio digital signal is converted into an analog signal, and the analog signal is amplified and then transmitted to a receiver for output.
EXAMPLE III
Based on the same inventive concept, the embodiment of the invention also provides a current sound eliminating device. Fig. 6 is a schematic structural diagram of a current sound eliminator according to an embodiment of the present invention, and as shown in fig. 6, the current sound eliminator 60 includes: a processor 601 and a memory 602, wherein,
the processor 601 is configured to execute the current tone cancellation program stored in the memory 602 to implement the following steps:
acquiring an audio digital signal of terminal equipment;
determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set; wherein the current sound curing parameter set comprises at least one current sound curing parameter, the current sound curing parameter characterizes background noise current sounds introduced by at least one component in the terminal equipment, and the first type of current sound curing parameter characterizes all background noise current sounds contained in the audio digital signal;
and eliminating all background current sounds in the audio digital signal based on the first type of current sound curing parameters.
In some embodiments, processor 601 is specifically configured to execute a current tone cancellation program stored in memory 602 to implement the following steps: determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set based on the current environment parameter of the terminal equipment; and the current sound curing parameter set also comprises the corresponding relation between the current sound curing parameters and the environment parameters.
In some embodiments, the environmental parameter includes at least one of: signal strength parameters, charge indication parameters.
In some embodiments, processor 601 is further configured to execute a current tone cancellation program stored in memory 602 to implement the steps of: collecting background noise current sound introduced by at least one component in the terminal equipment; performing time domain analysis and/or frequency domain analysis on each bottom noise current tone to obtain current tone curing parameters corresponding to each bottom noise current tone; and establishing a current sound curing parameter set by using all the obtained current sound curing parameters.
In some embodiments, processor 601 is further configured to execute a current tone cancellation program stored in memory 602 to implement the steps of: and updating the current sound solidification parameter set.
In some embodiments, processor 601 is specifically configured to execute a current tone cancellation program stored in memory 602 to implement the following steps: and updating the current sound curing parameter set when a preset time interval is reached or when an updating instruction is detected.
In some embodiments, after canceling all of the noise floor current tones in the audio digital signal, the processor 601 is further configured to execute a current tone canceling program stored in the memory 602 to implement the steps of: and converting the processed audio digital signal into an audio analog signal and outputting the audio analog signal.
In practical applications, the current sound cancellation apparatus may be located in the terminal device, that is, the processor may be a processor of the terminal device, and the memory may be a memory of the terminal device.
In practical applications, the Memory may be a volatile Memory (volatile Memory), such as a Random-Access Memory (RAM); or a non-volatile Memory (non-volatile Memory), such as a Read-Only Memory (ROM), a flash Memory (flash Memory), a Hard Disk (HDD), or a Solid-State Drive (SSD); or a combination of the above types of memories and provides instructions and data to the processor.
The processor may be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a DSP, a CPU, a controller, a microcontroller, and a microprocessor. It will be appreciated that the electronic devices used to implement the processor functions described above may be other devices, and embodiments of the present invention are not limited in particular.
Based on the same inventive concept, embodiments of the present invention also provide a computer-readable storage medium, such as a memory including a computer program, which is executable by a processor of a terminal to perform the method steps in one or more of the foregoing embodiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (11)
1. A current tone cancellation method, the method comprising:
acquiring an audio digital signal of terminal equipment;
determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set; the method comprises the following steps: determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set based on the current environment parameter of the terminal equipment; the current sound curing parameter set comprises at least one current sound curing parameter and a corresponding relation between the current sound curing parameter and an environment parameter, the current sound curing parameter represents the background noise current sound introduced by at least one component in the terminal equipment, and the first type of current sound curing parameter represents all background noise current sounds contained in the audio digital signal;
and eliminating all background current sounds in the audio digital signal based on the first type of current sound curing parameters.
2. The method of claim 1, wherein the environmental parameter comprises at least one of: signal strength parameters, charge indication parameters.
3. The method of claim 1, wherein the method of setting the current sound curing parameter set comprises:
collecting background noise current sound introduced by at least one component in the terminal equipment;
performing time domain analysis and/or frequency domain analysis on each bottom noise current tone to obtain current tone curing parameters corresponding to each bottom noise current tone;
and establishing a current sound curing parameter set by using all the obtained current sound curing parameters.
4. The method of claim 1, further comprising: and updating the current sound solidification parameter set.
5. The method of claim 4, wherein the updating the set of current sound curing parameters comprises: and updating the current sound solidification parameter set when a preset time interval is reached or when an updating instruction is detected.
6. A current tone cancellation apparatus, comprising: a processor and a memory; wherein the content of the first and second substances,
acquiring an audio digital signal of terminal equipment;
determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set; the method comprises the following steps: determining a first class current sound curing parameter corresponding to the audio digital signal from a preset current sound curing parameter set based on the current environment parameter of the terminal equipment; the current sound curing parameter set comprises at least one current sound curing parameter and a corresponding relation between the current sound curing parameter and an environment parameter, the current sound curing parameter represents the background noise current sound introduced by at least one component in the terminal equipment, and the first type of current sound curing parameter represents all background noise current sounds contained in the audio digital signal;
and eliminating all background current sounds in the audio digital signal based on the first type of current sound curing parameters.
7. The apparatus of claim 6, wherein the environmental parameter comprises at least one of: signal strength parameters, charge indication parameters.
8. The apparatus of claim 6, wherein the processor is specifically configured to execute a current tone cancellation program stored in the memory to implement the steps of:
collecting background noise current sound introduced by at least one component in the terminal equipment;
performing time domain analysis and/or frequency domain analysis on each bottom noise current tone to obtain current tone curing parameters corresponding to each bottom noise current tone;
and establishing a current sound curing parameter set by using all the obtained current sound curing parameters.
9. The apparatus of claim 6, wherein the processor is further configured to execute a current tone cancellation program stored in the memory to perform the steps of:
and updating the current sound solidification parameter set.
10. The apparatus of claim 9, wherein the processor is specifically configured to execute a current tone cancellation program stored in the memory to implement the steps of:
and updating the current sound curing parameter set when a preset time interval is reached or when an updating instruction is detected.
11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 5.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489452A (en) * | 2013-09-24 | 2014-01-01 | 小米科技有限责任公司 | Method and device for eliminating call noise and terminal device |
| EP2680548A1 (en) * | 2012-06-25 | 2014-01-01 | Huawei Device Co., Ltd. | Method and apparatus for reducing noise in voices in mobile terminals |
| CN203435133U (en) * | 2013-06-25 | 2014-02-12 | 青岛海信移动通信技术股份有限公司 | Current noise suppression circuit and mobile terminal |
| CN105959874A (en) * | 2016-05-04 | 2016-09-21 | 上海摩软通讯技术有限公司 | Mobile terminal and method of reducing audio frequency noise |
| CN107040637A (en) * | 2017-06-06 | 2017-08-11 | 深圳天珑无线科技有限公司 | Eliminate method, mobile terminal and the computer-readable recording medium of current sound |
| CN108234727A (en) * | 2017-11-29 | 2018-06-29 | 维沃移动通信有限公司 | A kind of noise-reduction method and mobile terminal |
-
2018
- 2018-09-12 CN CN201811061811.7A patent/CN110896420B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2680548A1 (en) * | 2012-06-25 | 2014-01-01 | Huawei Device Co., Ltd. | Method and apparatus for reducing noise in voices in mobile terminals |
| CN203435133U (en) * | 2013-06-25 | 2014-02-12 | 青岛海信移动通信技术股份有限公司 | Current noise suppression circuit and mobile terminal |
| CN103489452A (en) * | 2013-09-24 | 2014-01-01 | 小米科技有限责任公司 | Method and device for eliminating call noise and terminal device |
| CN105959874A (en) * | 2016-05-04 | 2016-09-21 | 上海摩软通讯技术有限公司 | Mobile terminal and method of reducing audio frequency noise |
| CN107040637A (en) * | 2017-06-06 | 2017-08-11 | 深圳天珑无线科技有限公司 | Eliminate method, mobile terminal and the computer-readable recording medium of current sound |
| CN108234727A (en) * | 2017-11-29 | 2018-06-29 | 维沃移动通信有限公司 | A kind of noise-reduction method and mobile terminal |
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