CN110875058A - Voice communication processing method, terminal equipment and server - Google Patents
Voice communication processing method, terminal equipment and server Download PDFInfo
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- CN110875058A CN110875058A CN201811008863.8A CN201811008863A CN110875058A CN 110875058 A CN110875058 A CN 110875058A CN 201811008863 A CN201811008863 A CN 201811008863A CN 110875058 A CN110875058 A CN 110875058A
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
- G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
Abstract
The invention provides a voice communication processing method, terminal equipment and a server, and relates to the technical field of communication. The method is applied to a terminal device which is provided with a high-pass filter connected with a microphone, and comprises the following steps: acquiring a high-frequency signal in an audio signal through the high-pass filter; stopping response processing on the audio signal under the condition that the signal intensity of the high-frequency signal is greater than or equal to a preset threshold value; and after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold value, the response processing of the audio signal is resumed. The scheme of the invention solves the problem that the existing voice call is attacked by ultrasonic frequency.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a voice communication processing method, a terminal device, and a server.
Background
With the development of the technology, voice communication is gradually developed into a widely applied communication means, which can be realized not only by a telephone, but also by chat software, even mobile phone software.
In the voice call technology, a microphone of an electronic product responds to air pressure changes caused by sound waves by vibration through a film, and since the frequency range of human ear hearing is about 20-20000 Hz, the sound waves beyond the range are not perceived by human ears, but can still be received by audio hardware of the electronic device and can be correctly understood by a voice recognition system. An attacker can take advantage of this deficiency to let a speech recognition system installed on the electronic device execute commands, such as controlling smart home devices, etc., without the knowledge of the owner of the electronic device by generating the target tone at a much higher ultrasonic frequency.
Therefore, voice communication in the prior art is easy to be attacked by an attacker using the ultrasonic frequency to the voice recognition system, and the security of voice communication is reduced.
Disclosure of Invention
The invention aims to provide a voice communication processing method, terminal equipment and a server, and aims to solve the problem that the existing voice communication is attacked by ultrasonic frequency.
In order to achieve the above object, an embodiment of the present invention provides a voice communication processing method applied to a terminal device, where the terminal device is provided with a high-pass filter connected to a microphone, and the method includes:
acquiring a high-frequency signal in an audio signal through the high-pass filter;
stopping response processing on the audio signal under the condition that the signal intensity of the high-frequency signal is greater than or equal to a preset threshold value;
and after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold value, the response processing of the audio signal is resumed.
After the high-frequency signal in the audio signal is obtained through the high-pass filter, the method further includes:
amplifying the high-frequency signal output by the high-pass filter through a signal amplifier;
inputting the amplified high-frequency signal into a comparator to obtain a comparison result signal; wherein the content of the first and second substances,
the comparator is configured to compare the amplified high-frequency signal with the preset threshold, and the comparison result signal includes: a first signal indicating that the signal strength of the high frequency signal is greater than or equal to the preset threshold, and a second signal indicating that the signal strength of the high frequency signal is less than the preset threshold.
Wherein the stopping of the response processing to the audio signal comprises:
informing a network voice recognition server that potential safety hazards exist in the current audio signal of the terminal equipment; alternatively, the first and second electrodes may be,
controlling an audio processing switch to be disconnected with a digital-to-analog converter, wherein one end of the audio processing switch is connected with a signal amplifier connected with a low-pass filter, and the other end of the audio processing switch is connected with the digital-to-analog converter; the low pass filter is connected to the microphone.
Wherein, the informing the network speech recognition server that the audio signal of the terminal device has potential safety hazard currently comprises:
sending a first notification message to a network attack processing server to be forwarded to the network voice recognition server through the network attack processing server; the first notification message is used for notifying that potential safety hazards exist in the current audio signal.
After the sending the first notification message to the cyber attack processing server, the method further includes:
receiving alarm information sent by the network attack processing server through a short message server after the network attack processing server receives the first notification message;
and sending a response short message to the short message server according to the input of the alarm information corresponding to the user, and triggering the network attack processing server through the short message server to send the first notification message to the network voice recognition server.
Wherein the resuming the responsive processing to the audio signal comprises:
informing a network voice recognition server that the current audio signal of the terminal equipment has no potential safety hazard; alternatively, the first and second electrodes may be,
the audio processing switch is controlled to resume connection with the digital-to-analog converter.
Wherein, the informing network speech recognition server that the audio signal of the terminal device is free of potential safety hazard currently comprises:
sending a second notification message to a network attack processing server to be forwarded to the network voice recognition server through the network attack processing server; wherein the second notification message is used for notifying that the current audio signal has no potential safety hazard.
After the sending the second notification message to the cyber attack processing server, the method further includes:
and receiving alarm release information sent by the network attack processing server through the short message server after the network attack processing server receives the second notification message.
In order to achieve the above object, an embodiment of the present invention provides a voice communication processing method applied to a network attack processing server, including:
receiving a first notification message or a second notification message sent by terminal equipment;
forwarding the first notification message or the second notification message to a network voice recognition server; wherein the content of the first and second substances,
the first notification message is used for notifying that potential safety hazards exist in the current audio signal and is sent by the terminal equipment under the condition that the signal intensity of a high-frequency signal in the audio signal acquired through the high-pass filter is larger than or equal to a preset threshold value; the second notification message is used for notifying that the current audio signal has no potential safety hazard and is sent when the signal intensity of the high-frequency signal is smaller than a preset threshold value after the response processing of the audio signal is stopped by the terminal equipment.
To achieve the above object, an embodiment of the present invention provides a terminal device provided with a high-pass filter connected to a microphone, the terminal device including a first processor and a first transceiver, wherein,
the first processor is used for acquiring a high-frequency signal in an audio signal through the high-pass filter; stopping response processing on the audio signal under the condition that the signal intensity of the high-frequency signal is greater than or equal to a preset threshold value; and after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold value, the response processing of the audio signal is resumed.
The first processor is further used for amplifying the high-frequency signal output by the high-pass filter through a signal amplifier; inputting the amplified high-frequency signal into a comparator to obtain a comparison result signal; wherein the content of the first and second substances,
the comparator is configured to compare the amplified high-frequency signal with the preset threshold, and the comparison result signal includes: a first signal indicating that the signal strength of the high frequency signal is greater than or equal to the preset threshold, and a second signal indicating that the signal strength of the high frequency signal is less than the preset threshold.
The first processor is further used for informing a network voice recognition server that potential safety hazards exist in the current audio signal of the terminal equipment; or, controlling an audio processing switch to disconnect the connection with the digital-to-analog converter, wherein one end of the audio processing switch is connected with a signal amplifier connected with the low-pass filter, and the other end of the audio processing switch is connected with the digital-to-analog converter; the low pass filter is connected to the microphone.
The first transceiver is used for sending a first notification message to a network attack processing server so as to forward the first notification message to the network voice recognition server through the network attack processing server; the first notification message is used for notifying that potential safety hazards exist in the current audio signal.
The first transceiver is further configured to receive alarm information sent by the network attack processing server through a short message server after receiving the first notification message; and sending a response short message to the short message server according to the input of the alarm information corresponding to the user, and triggering the network attack processing server through the short message server to send the first notification message to the network voice recognition server.
The first processor is further used for informing the network voice recognition server that the audio signal of the current terminal equipment has no potential safety hazard; alternatively, the audio processing switch is controlled to restore the connection to the digital-to-analog converter.
The first transceiver is further used for sending a second notification message to a network attack processing server so as to forward the second notification message to the network voice recognition server through the network attack processing server; wherein the second notification message is used for notifying that the current audio signal has no potential safety hazard.
The first transceiver is further configured to receive warning release information sent by the network attack processing server through the short message server after receiving the second notification message.
To achieve the above object, an embodiment of the present invention provides a server, including a second processor and a second transceiver,
the second transceiver is used for receiving a first notification message or a second notification message sent by the terminal equipment; forwarding the first notification message or the second notification message to a network voice recognition server; wherein the content of the first and second substances,
the first notification message is used for notifying that potential safety hazards exist in the current audio signal and is sent by the terminal equipment under the condition that the signal intensity of a high-frequency signal in the audio signal acquired through the high-pass filter is larger than or equal to a preset threshold value; the second notification message is used for notifying that the current audio signal has no potential safety hazard and is sent when the signal intensity of the high-frequency signal is smaller than a preset threshold value after the response processing of the audio signal is stopped by the terminal equipment.
In order to achieve the above object, an embodiment of the present invention provides a voice communication processing apparatus applied to a terminal device, where the terminal device is provided with a high-pass filter connected to a microphone, and the apparatus includes:
the acquisition module is used for acquiring a high-frequency signal in the audio signal through the high-pass filter;
the first processing module is used for stopping response processing on the audio signal under the condition that the signal intensity of the high-frequency signal is greater than or equal to a preset threshold value;
and the second processing module is used for recovering the response processing of the audio signal if the signal intensity of the high-frequency signal is smaller than the preset threshold value after the response processing of the audio signal is stopped.
In order to achieve the above object, an embodiment of the present invention provides a voice communication processing apparatus applied to a network attack processing server, including:
the receiving module is used for receiving a first notification message or a second notification message sent by the terminal equipment;
the sending module is used for forwarding the first notification message or the second notification message to a network voice recognition server; wherein the content of the first and second substances,
the first notification message is used for notifying that potential safety hazards exist in the current audio signal and is sent by the terminal equipment under the condition that the signal intensity of a high-frequency signal in the audio signal acquired through the high-pass filter is larger than or equal to a preset threshold value; the second notification message is used for notifying that the current audio signal has no potential safety hazard and is sent when the signal intensity of the high-frequency signal is smaller than a preset threshold value after the response processing of the audio signal is stopped by the terminal equipment.
To achieve the above object, an embodiment of the present invention provides a terminal device, including a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor, when executing the computer program, implements the voice communication processing method as applied to the terminal device.
To achieve the above object, an embodiment of the present invention provides a server, including a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements the voice communication processing method applied to the network attack processing server as described above when executing the computer program.
To achieve the above object, an embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements the steps in the voice communication processing method as described above as applied to a terminal device, or implements the steps in the voice communication processing method as applied to a network attack processing server as described above.
The technical scheme of the invention has the following beneficial effects:
according to the method, a high-frequency signal in an audio signal is obtained through a high-pass filter, then the signal intensity of the high-frequency signal is compared with a preset threshold value to judge whether ultrasonic frequency attack exists or not, and under the condition that the signal intensity of the high-frequency signal is larger than or equal to the preset threshold value, the ultrasonic frequency attack is considered to exist, response processing on the audio signal is stopped, and therefore attack is avoided; and after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold, the ultrasonic frequency attack is considered to be absent, the response processing of the audio signal is recovered, and the normal work is recovered. Therefore, the ultrasonic frequency attack can be identified through the high-frequency signal and the signal intensity thereof, the response processing of the audio signal is controlled in a targeted manner, and the safety of the terminal equipment is improved.
Drawings
Fig. 1 is a flowchart of a voice communication processing method applied to a terminal device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a terminal device in an embodiment of the present invention;
fig. 3 is a second schematic structural diagram of a terminal device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of device communication according to an embodiment of the present invention;
fig. 5 is an application diagram of a voice communication processing method applied to a terminal device according to an embodiment of the present invention;
fig. 6 is a flowchart of a voice communication processing method applied to a network attack processing server according to an embodiment of the present invention;
fig. 7 is a structural diagram of a terminal device according to an embodiment of the present invention;
fig. 8 is a block diagram of a server according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a voice communication processing method aiming at the problem that an attacker can attack a voice recognition system by utilizing an ultrasonic frequency in the voice communication process of the existing terminal equipment and causes certain potential safety hazard to a user, and the safety of the terminal equipment is improved by pertinently controlling the processing of an audio signal in the voice communication.
As shown in fig. 1, a voice communication processing method according to an embodiment of the present invention is applied to a terminal device, where the terminal device is provided with a high-pass filter connected to a microphone, and the method includes:
and 103, after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold value, resuming the response processing of the audio signal.
In this embodiment, the terminal device is provided with a high pass filter connected to the microphone to assist in detecting the presence of an ultrasonic frequency attack. The method comprises the steps that firstly, a high-frequency signal in an audio signal is obtained through a high-pass filter, then the signal intensity of the high-frequency signal is compared with a preset threshold value to judge whether ultrasonic frequency attack exists or not, and under the condition that the signal intensity of the high-frequency signal is larger than or equal to the preset threshold value, the ultrasonic frequency attack is considered to exist, response processing on the audio signal is stopped, and therefore the attack is avoided; and after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold, the ultrasonic frequency attack is considered to be absent, the response processing of the audio signal is recovered, and the normal work is recovered. Therefore, the ultrasonic frequency attack can be identified through the high-frequency signal and the signal intensity thereof, the processing of the audio signal is controlled in a targeted manner, and the safety of the terminal equipment is improved.
Here, the high-pass filter sets the range of the high-frequency signal that is allowed to pass, for example, above 18 khz, in order to achieve auxiliary detection of an attack at an ultrasonic frequency, so that only the high-frequency signal that matches the setting, for example, the high-frequency signal above 18 khz, passes.
As shown in fig. 2, the high-pass filter connected to the microphone is further connected to a signal amplifier, and the signal amplifier is connected to a comparator. In this embodiment, after step 101, the method further includes:
amplifying the high-frequency signal output by the high-pass filter through a signal amplifier;
inputting the amplified high-frequency signal into a comparator to obtain a comparison result signal; wherein the content of the first and second substances,
the comparator is configured to compare the amplified high-frequency signal with the preset threshold, and the comparison result signal includes: a first signal indicating that the signal strength of the high frequency signal is greater than or equal to the preset threshold, and a second signal indicating that the signal strength of the high frequency signal is less than the preset threshold.
Here, the high frequency signal output from the high pass filter is amplified by the signal amplifier, so that the comparison with the preset threshold value can be more effectively realized. After the amplified high-frequency signal is input into a comparator, the comparator compares the amplified high-frequency signal with a preset threshold value to further obtain a comparison result signal: the first signal or the second signal is used for carrying out corresponding control according to the comparison result signal.
It should be noted that, for the audio signal received by the terminal device, the network voice recognition server is often used to respond to the audio signal, and therefore, on the basis of the above embodiment, the stopping of the response processing to the audio signal includes:
informing a network voice recognition server that potential safety hazards exist in the current audio signal of the terminal equipment; alternatively, the first and second electrodes may be,
controlling an audio processing switch to be disconnected with a digital-to-analog converter, wherein one end of the audio processing switch is connected with a signal amplifier connected with a low-pass filter, and the other end of the audio processing switch is connected with the digital-to-analog converter; the low pass filter is connected to the microphone.
Therefore, on one hand, the terminal equipment can inform the network voice recognition server that the potential safety hazard exists in the current audio signal of the terminal equipment, so that the network voice recognition server does not react to the current audio signal to avoid the attack; on one hand, the connection with the digital-to-analog converter can be disconnected, and the transmission of the current audio signal is terminated, so that the attack can be avoided.
Optionally, as shown in fig. 3, the microphones of the terminal devices are respectively connected with a low-pass filter and a high-pass filter, the high-pass filter is further connected with a signal amplifier, and the signal amplifier is connected with a comparator; the low-pass filter is connected with another signal amplifier, and the signal amplifier is also connected with an audio processing switch. The comparator can control the connection state of the audio processing switch and the digital-to-analog converter, and if the comparison result signal is a first signal, the audio processing switch is disconnected from the digital-to-analog converter; if the comparison result signal is the second signal, the audio processing switch is closed and is connected with the digital-to-analog converter.
In this embodiment of the present invention, as for a notification manner that an audio signal has a potential safety hazard, optionally, the notifying a network voice recognition server that the audio signal of the current terminal device has a potential safety hazard includes:
sending a first notification message to a network attack processing server to be forwarded to the network voice recognition server through the network attack processing server; the first notification message is used for notifying that potential safety hazards exist in the current audio signal.
In this step, the terminal device sends a first notification message (a notification message for notifying that the current audio signal has a potential safety hazard) to the network attack processing server, and the network attack processing server forwards the first notification message to the network voice recognition server.
In addition, after receiving the first notification message, the network attack processing server may first query the user data server for the user information of the terminal device, so as to send the warning information to the terminal device. The alarm information can ask whether to stop the voice recognition service of the terminal equipment or not besides carrying out attack alarm on the user, and then the processing is carried out according to the intention of the user.
Therefore, after the sending the first notification message to the cyber attack processing server, the method further includes:
receiving alarm information sent by the network attack processing server through a short message server after the network attack processing server receives the first notification message;
and sending a response short message to the short message server according to the input of the alarm information corresponding to the user, and triggering the network attack processing server through the short message server to send the first notification message to the network voice recognition server.
Here, after receiving the warning message, the terminal device sends a response message to the short message server according to the input of the warning message corresponding to the user (i.e., the user confirms to stop the voice recognition service), and the short message server informs the network attack processing server to trigger the network attack processing server to send the previously received first notification message to the network voice recognition server to stop the voice recognition service for the terminal device.
In addition, corresponding to the step of stopping the processing of the audio signal, optionally, the resuming the response processing of the audio signal includes:
informing a network voice recognition server that the current audio signal of the terminal equipment has no potential safety hazard; alternatively, the first and second electrodes may be,
the audio processing switch is controlled to resume connection with the digital-to-analog converter.
Therefore, the terminal equipment can recover the response processing of the audio signal by informing the network voice recognition server that the audio signal of the terminal equipment has no potential safety hazard; alternatively, the response process to the audio signal may be resumed by restoring the connection to the digital-to-analog converter. Of course, the specific manner of resuming the processing of the response to the audio signal may be implemented in correspondence with the manner employed when stopping.
Wherein, the informing network speech recognition server that the audio signal of the terminal device is free of potential safety hazard currently comprises:
sending a second notification message to a network attack processing server to be forwarded to the network voice recognition server through the network attack processing server; wherein the second notification message is used for notifying that the current audio signal has no potential safety hazard.
In this step, the terminal device sends a second notification message (a notification message for notifying that the current audio signal has no potential safety hazard) to the network attack processing server, and the network attack processing server forwards the second notification message to the network voice recognition server.
And after receiving the second notification message, the network attack processing server sends alarm release information to the terminal device to notify the user that the voice recognition service is recovered. Therefore, after the sending the second notification message to the cyber attack processing server, the method further includes:
and receiving alarm release information sent by the network attack processing server through the short message server after the network attack processing server receives the second notification message.
Here, the terminal device receives the alert release information to let the user know that the voice recognition service is restored.
In this embodiment, after the audio signal processing is stopped, the network device attack processing server may periodically inquire, to the terminal device, whether a potential safety hazard still exists, so that the terminal device performs signal strength determination on the high-frequency signal in response to the inquiry, and starts the audio signal processing when the signal strength of the high-frequency signal is smaller than a preset threshold. Or after the audio signal processing is stopped, the terminal device actively judges the signal intensity of the high-frequency signal, and starts the audio signal processing when the signal intensity of the high-frequency signal is smaller than a preset threshold value.
A specific application scenario of the voice communication processing method according to the embodiment of the present invention is described below with reference to fig. 4 and 5:
a detection device for high-frequency signals received by a microphone is additionally arranged on terminal equipment (such as a mobile phone, an intelligent sound box and the like) supporting an intelligent voice recognition function, and the detection device comprises a high-pass filter, a signal amplifier and a comparator.
1, the terminal equipment simultaneously passes the audio signals received by all the microphones through a low-pass filter and a high-pass filter, wherein the high-pass filter allows high-frequency signals above a specified range (for example, 18 kilohertz) to pass through; the comparator identifies the intensity of the received high-frequency signal and judges whether the intensity exceeds the specified signal intensity; when the high-frequency signal is detected to exceed the designated signal intensity, the signal of the comparator triggers and sends a first notification message to the network attack processing server, and the network attack processor is notified to start an attack processing flow;
2, the network attack processing server inquires user information from the user data server, wherein the user information comprises registration terminal information and user attribute Profile, and the user data server feeds the inquiry result back to the network attack processing server;
3, the network attack processing server informs the short message server to send an alarm short message (namely alarm information) to the terminal equipment, and inquires whether to stop the voice recognition service of the terminal equipment;
4, the short message server sends an alarm short message to the terminal equipment;
5, the user confirms to stop the service, and the terminal equipment sends a response short message to the short message server;
6, the short message server informs the network attack processing server that the user confirms to stop the service;
7, the network attack processing server transmits the first notification message to notify the network voice recognition server to stop the voice recognition service of the terminal equipment;
8, the network attack processing server periodically inquires whether the terminal equipment still continues to receive the high-frequency signal exceeding the threshold;
9, if the signal strength is lower than the threshold value, sending a second notification message to the network attack processing server to notify the network voice recognition server to recover the service to the terminal;
10, the network attack processing server informs the short message server to send a recovery notice of the terminal voice recognition service to the user;
and 11, the short message server sends a notification short message (namely the alarm release information) to the terminal equipment.
In summary, in the voice communication processing method according to the embodiment of the present invention, a high-pass filter connected to a microphone is used to obtain a high-frequency signal in an audio signal, and then the signal strength of the high-frequency signal is compared with a preset threshold to determine whether an ultrasonic frequency attack exists, and when the signal strength of the high-frequency signal is greater than or equal to the preset threshold, the ultrasonic frequency attack is determined to exist, and response processing on the audio signal is stopped to avoid being attacked; and after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold, the ultrasonic frequency attack is considered to be absent, the response processing of the audio signal is recovered, and the normal work is recovered. Therefore, the ultrasonic frequency attack can be identified through the high-frequency signal and the signal intensity thereof, the response processing of the audio signal is controlled in a targeted manner, and the safety of the terminal equipment is improved.
As shown in fig. 6, a voice communication processing method, a network attack processing server according to an embodiment of the present invention includes:
the first notification message is used for notifying that potential safety hazards exist in the current audio signal and is sent by the terminal equipment under the condition that the signal intensity of a high-frequency signal in the audio signal acquired through the high-pass filter is larger than or equal to a preset threshold value; the second notification message is used for notifying that the current audio signal has no potential safety hazard and is sent when the signal intensity of the high-frequency signal is smaller than a preset threshold value after the response processing of the audio signal is stopped by the terminal equipment.
Through the steps 601 and 602, the network attack processing server forwards the first notification message or the second notification message sent by the terminal device to the network voice recognition server according to the received first notification message or the second notification message, so as to control the response processing of the audio signal according to the current scene, thereby improving the security of the terminal device.
Optionally, after receiving the first notification message sent by the terminal device, the method further includes:
inquiring user information of the terminal equipment from a user data server;
sending alarm information to the terminal equipment through a short message server according to the user information;
forwarding the first notification message to a network voice recognition server, comprising:
and after the short message server receives a response short message, sending the first notification message to the network voice recognition server.
Optionally, after receiving the second notification message sent by the terminal device, the method further includes:
and sending alarm release information to the terminal equipment through the short message server.
It should be noted that, the voice communication processing method is applied to a network attack processing server, and is matched with the voice communication processing method of the application terminal device to implement defense against ultrasonic frequency attack, so that the implementation manner related to the embodiment of the voice communication processing method of the application terminal device is suitable for the method, and the same technical effect can be achieved.
As shown in fig. 7, a terminal device 700 according to an embodiment of the present invention, which is provided with a high pass filter connected to a microphone, includes a first processor 701 and a first transceiver 702, wherein,
the first processor 701 is configured to obtain a high-frequency signal in an audio signal through the high-pass filter; stopping response processing on the audio signal under the condition that the signal intensity of the high-frequency signal is greater than or equal to a preset threshold value; and after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold value, the response processing of the audio signal is resumed.
The first processor is further used for amplifying the high-frequency signal output by the high-pass filter through a signal amplifier; inputting the amplified high-frequency signal into a comparator to obtain a comparison result signal; wherein the content of the first and second substances,
the comparator is configured to compare the amplified high-frequency signal with the preset threshold, and the comparison result signal includes: a first signal indicating that the signal strength of the high frequency signal is greater than or equal to the preset threshold, and a second signal indicating that the signal strength of the high frequency signal is less than the preset threshold.
The first processor is further used for informing a network voice recognition server that potential safety hazards exist in the current audio signal of the terminal equipment; or, controlling an audio processing switch to disconnect the connection with the digital-to-analog converter, wherein one end of the audio processing switch is connected with a signal amplifier connected with the low-pass filter, and the other end of the audio processing switch is connected with the digital-to-analog converter; the low pass filter is connected to the microphone.
The first transceiver is used for sending a first notification message to a network attack processing server so as to forward the first notification message to the network voice recognition server through the network attack processing server; the first notification message is used for notifying that potential safety hazards exist in the current audio signal.
The first transceiver is further configured to receive alarm information sent by the network attack processing server through a short message server after receiving the first notification message; and sending a response short message to the short message server according to the input of the alarm information corresponding to the user, and triggering the network attack processing server through the short message server to send the first notification message to the network voice recognition server.
The first processor is further used for informing the network voice recognition server that the audio signal of the current terminal equipment has no potential safety hazard; alternatively, the audio processing switch is controlled to restore the connection to the digital-to-analog converter.
The first transceiver is further used for sending a second notification message to a network attack processing server so as to forward the second notification message to the network voice recognition server through the network attack processing server; wherein the second notification message is used for notifying that the current audio signal has no potential safety hazard.
The first transceiver is further configured to receive warning release information sent by the network attack processing server through the short message server after receiving the second notification message.
The terminal equipment is provided with a high-pass filter connected with a microphone, firstly, a high-frequency signal in an audio signal is obtained through the high-pass filter, then the signal intensity of the high-frequency signal is compared with a preset threshold value to judge whether an ultrasonic frequency attack exists or not, and under the condition that the signal intensity of the high-frequency signal is greater than or equal to the preset threshold value, the ultrasonic frequency attack is considered to exist, and the response processing of the audio signal is stopped to avoid the attack; and after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold, the ultrasonic frequency attack is considered to be absent, the response processing of the audio signal is recovered, and the normal work is recovered. Therefore, the ultrasonic frequency attack can be identified through the high-frequency signal and the signal intensity thereof, the response processing of the audio signal is controlled in a targeted manner, and the safety of the terminal equipment is improved.
As shown in fig. 8, a server 800 according to an embodiment of the present invention includes a second processor 801 and a second transceiver 802,
the second transceiver is used for receiving a first notification message or a second notification message sent by the terminal equipment; forwarding the first notification message or the second notification message to a network voice recognition server; wherein the content of the first and second substances,
the first notification message is used for notifying that potential safety hazards exist in the current audio signal and is sent by the terminal equipment under the condition that the signal intensity of a high-frequency signal in the audio signal acquired through the high-pass filter is larger than or equal to a preset threshold value; the second notification message is used for notifying that the current audio signal has no potential safety hazard and is sent when the signal intensity of the high-frequency signal is smaller than a preset threshold value after the response processing of the audio signal is stopped by the terminal equipment.
The second processor is used for inquiring user information of the terminal equipment from a user data server;
the second transceiver is also used for sending alarm information to the terminal equipment through a short message server according to the user information; and after the short message server receives a response short message, sending the first notification message to the network voice recognition server.
The second transceiver is further used for sending alarm release information to the terminal equipment through the short message server.
The network attack processing server can forward the first notification message or the second notification message sent by the terminal equipment to the network voice recognition server according to the received first notification message or the second notification message, so as to control the response processing of the audio signal according to the current scene, and improve the safety of the terminal equipment.
The voice communication processing device of the embodiment of the invention is applied to terminal equipment, the terminal equipment is provided with a high-pass filter connected with a microphone, and the device comprises:
the acquisition module is used for acquiring a high-frequency signal in the audio signal through the high-pass filter;
the first processing module is used for stopping response processing on the audio signal under the condition that the signal intensity of the high-frequency signal is greater than or equal to a preset threshold value;
and the second processing module is used for recovering the response processing of the audio signal if the signal intensity of the high-frequency signal is smaller than the preset threshold value after the response processing of the audio signal is stopped.
Wherein the apparatus further comprises:
the first signal processing module is used for amplifying the high-frequency signal output by the high-pass filter through a signal amplifier;
the second signal processing module is used for inputting the amplified high-frequency signal into the comparator to obtain a comparison result signal; wherein the content of the first and second substances,
the comparator is configured to compare the amplified high-frequency signal with the preset threshold, and the comparison result signal includes: a first signal indicating that the signal strength of the high frequency signal is greater than or equal to the preset threshold, and a second signal indicating that the signal strength of the high frequency signal is less than the preset threshold.
Wherein the first processing module comprises:
the first notification submodule is used for notifying the network voice recognition server that potential safety hazards exist in the current audio signal of the terminal equipment; alternatively, the first and second electrodes may be,
the first control submodule is used for controlling an audio processing switch to be disconnected with the digital-to-analog converter, wherein one end of the audio processing switch is connected with a signal amplifier connected with a low-pass filter, and the other end of the audio processing switch is connected with the digital-to-analog converter; the low pass filter is connected to the microphone.
Wherein the first notification sub-module is further configured to:
sending a first notification message to a network attack processing server to be forwarded to the network voice recognition server through the network attack processing server; the first notification message is used for notifying that potential safety hazards exist in the current audio signal.
Wherein the first processing module further comprises:
the warning information receiving submodule is used for receiving warning information sent by the network attack processing server through the short message server after the network attack processing server receives the first notification message;
and the response short message sending submodule is used for sending a response short message to the short message server according to the input of the alarm information corresponding to the user, and triggering the network attack processing server through the short message server to send the first notification message to the network voice recognition server.
Wherein the second processing module comprises:
the second informing submodule is used for informing the network voice recognition server that the audio signal of the current terminal equipment has no potential safety hazard; alternatively, the first and second electrodes may be,
and the second control submodule is used for controlling the audio processing switch to restore the connection with the digital-to-analog converter.
Wherein the second notification submodule is further configured to:
sending a second notification message to a network attack processing server to be forwarded to the network voice recognition server through the network attack processing server; wherein the second notification message is used for notifying that the current audio signal has no potential safety hazard.
Wherein the second processing module further comprises:
and the alarm release information receiving submodule is used for receiving the alarm release information sent by the network attack processing server through the short message server after receiving the second notification message.
It should be noted that the apparatus is applied to a terminal device, and the implementation manner of the terminal device is applicable to the apparatus, and the same technical effect can be achieved.
The device acquires a high-frequency signal in an audio signal through a high-pass filter, compares the signal intensity of the high-frequency signal with a preset threshold value to judge whether ultrasonic frequency attack exists, and under the condition that the signal intensity of the high-frequency signal is greater than or equal to the preset threshold value, the ultrasonic frequency attack is considered to exist, response processing on the audio signal is stopped, and attack is avoided; and after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold, the ultrasonic frequency attack is considered to be absent, the response processing of the audio signal is recovered, and the normal work is recovered. Therefore, the ultrasonic frequency attack can be identified through the high-frequency signal and the signal intensity thereof, the response processing of the audio signal is controlled in a targeted manner, and the safety of the terminal equipment is improved.
The voice communication processing device of the embodiment of the invention is applied to a network attack processing server, and comprises the following components:
the receiving module is used for receiving a first notification message or a second notification message sent by the terminal equipment;
the sending module is used for forwarding the first notification message or the second notification message to a network voice recognition server; wherein the content of the first and second substances,
the first notification message is used for notifying that potential safety hazards exist in the current audio signal and is sent by the terminal equipment under the condition that the signal intensity of a high-frequency signal in the audio signal acquired through the high-pass filter is larger than or equal to a preset threshold value; the second notification message is used for notifying that the current audio signal has no potential safety hazard and is sent when the signal intensity of the high-frequency signal is smaller than a preset threshold value after the response processing of the audio signal is stopped by the terminal equipment.
Wherein the apparatus further comprises:
the query module is used for querying the user information of the terminal equipment to a user data server;
the warning module is used for sending warning information to the terminal equipment through the short message server according to the user information; and after the short message server receives a response short message, sending the first notification message to the network voice recognition server.
Wherein the apparatus further comprises:
and the alarm removing module is used for sending alarm removing information to the terminal equipment through the short message server.
The device is applied to the network attack processing server, and the implementation mode of the network attack processing server is applied to the device and can achieve the same technical effect.
The voice communication processing device can forward the received first notification message or the second notification message sent by the terminal equipment to the network voice recognition server so as to control the response processing of the audio signal according to the current scene, and the safety of the terminal equipment is improved.
An embodiment of the present invention further provides a terminal device, including a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor, when executing the computer program, implements the voice communication processing method as applied to the terminal device.
Embodiments of the present invention also provide a server comprising a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements the voice communication processing method applied to the network attack processing server as described above when executing the computer program.
A computer-readable storage medium according to an embodiment of the present invention stores thereon a computer program, and when executed by a processor, the computer program implements the steps in the voice communication processing method applied to a terminal device or the steps in the voice communication processing method applied to a network attack processing server, and can achieve the same technical effects, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It is further noted that the terminals described in this specification include, but are not limited to, smart phones, tablets, etc., and that many of the functional components described are referred to as modules in order to more particularly emphasize their implementation independence.
In embodiments of the present invention, modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.
Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within the modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.
When a module can be implemented by software, considering the level of existing hardware technology, a module implemented by software may build a corresponding hardware circuit to implement a corresponding function, without considering cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
The exemplary embodiments described above are described with reference to the drawings, and many different forms and embodiments of the invention may be made without departing from the spirit and teaching of the invention, therefore, the invention is not to be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of elements may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Unless otherwise indicated, a range of values, when stated, includes the upper and lower limits of the range and any subranges therebetween.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (23)
1. A voice communication processing method is applied to a terminal device, and is characterized in that the terminal device is provided with a high-pass filter connected with a microphone, and the method comprises the following steps:
acquiring a high-frequency signal in an audio signal through the high-pass filter;
stopping response processing on the audio signal under the condition that the signal intensity of the high-frequency signal is greater than or equal to a preset threshold value;
and after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold value, the response processing of the audio signal is resumed.
2. The method of claim 1, wherein after the obtaining the high frequency signal in the audio signal by the high pass filter, further comprising:
amplifying the high-frequency signal output by the high-pass filter through a signal amplifier;
inputting the amplified high-frequency signal into a comparator to obtain a comparison result signal; wherein the content of the first and second substances,
the comparator is configured to compare the amplified high-frequency signal with the preset threshold, and the comparison result signal includes: a first signal indicating that the signal strength of the high frequency signal is greater than or equal to the preset threshold, and a second signal indicating that the signal strength of the high frequency signal is less than the preset threshold.
3. The method of claim 1, wherein stopping responsive processing to the audio signal comprises:
informing a network voice recognition server that potential safety hazards exist in the current audio signal of the terminal equipment; alternatively, the first and second electrodes may be,
controlling an audio processing switch to be disconnected with a digital-to-analog converter, wherein one end of the audio processing switch is connected with a signal amplifier connected with a low-pass filter, and the other end of the audio processing switch is connected with the digital-to-analog converter; the low pass filter is connected to the microphone.
4. The method of claim 3, wherein the notifying a network voice recognition server that a potential safety hazard exists in the audio signal of the terminal device comprises:
sending a first notification message to a network attack processing server to be forwarded to the network voice recognition server through the network attack processing server; the first notification message is used for notifying that potential safety hazards exist in the current audio signal.
5. The method of claim 4, wherein after the sending the first notification message to the cyber attack processing server, further comprising:
receiving alarm information sent by the network attack processing server through a short message server after the network attack processing server receives the first notification message;
and sending a response short message to the short message server according to the input of the alarm information corresponding to the user, and triggering the network attack processing server through the short message server to send the first notification message to the network voice recognition server.
6. The method of claim 1, wherein resuming responsive processing to the audio signal comprises:
informing a network voice recognition server that the current audio signal of the terminal equipment has no potential safety hazard; alternatively, the first and second electrodes may be,
the audio processing switch is controlled to resume connection with the digital-to-analog converter.
7. The method of claim 6, wherein the notifying a network voice recognition server that the audio signal of the terminal device is not a security risk includes:
sending a second notification message to a network attack processing server to be forwarded to the network voice recognition server through the network attack processing server; wherein the second notification message is used for notifying that the current audio signal has no potential safety hazard.
8. The method of claim 7, wherein after sending the second notification message to the cyber attack processing server, further comprising:
and receiving alarm release information sent by the network attack processing server through the short message server after the network attack processing server receives the second notification message.
9. A voice communication processing method is applied to a network attack processing server and is characterized by comprising the following steps:
receiving a first notification message or a second notification message sent by terminal equipment;
forwarding the first notification message or the second notification message to a network voice recognition server; wherein the content of the first and second substances,
the first notification message is used for notifying that potential safety hazards exist in the current audio signal and is sent by the terminal equipment under the condition that the signal intensity of a high-frequency signal in the audio signal acquired through the high-pass filter is larger than or equal to a preset threshold value; the second notification message is used for notifying that the current audio signal has no potential safety hazard and is sent when the signal intensity of the high-frequency signal is smaller than a preset threshold value after the response processing of the audio signal is stopped by the terminal equipment.
10. A terminal device, characterized in that the terminal device is provided with a high pass filter connected to a microphone, the terminal device comprising a first processor and a first transceiver, wherein,
the first processor is used for acquiring a high-frequency signal in an audio signal through the high-pass filter; stopping response processing on the audio signal under the condition that the signal intensity of the high-frequency signal is greater than or equal to a preset threshold value; and after the response processing of the audio signal is stopped, if the signal intensity of the high-frequency signal is smaller than the preset threshold value, the response processing of the audio signal is resumed.
11. The terminal device of claim 10,
the first processor is also used for amplifying the high-frequency signal output by the high-pass filter through a signal amplifier; inputting the amplified high-frequency signal into a comparator to obtain a comparison result signal; wherein the content of the first and second substances,
the comparator is configured to compare the amplified high-frequency signal with the preset threshold, and the comparison result signal includes: a first signal indicating that the signal strength of the high frequency signal is greater than or equal to the preset threshold, and a second signal indicating that the signal strength of the high frequency signal is less than the preset threshold.
12. The terminal device of claim 10,
the first processor is also used for informing the network voice recognition server that potential safety hazards exist in the current audio signal of the terminal equipment; or, controlling an audio processing switch to disconnect the connection with the digital-to-analog converter, wherein one end of the audio processing switch is connected with a signal amplifier connected with the low-pass filter, and the other end of the audio processing switch is connected with the digital-to-analog converter; the low pass filter is connected to the microphone.
13. The terminal device of claim 12,
the first transceiver is used for sending a first notification message to a network attack processing server so as to forward the first notification message to the network voice recognition server through the network attack processing server; the first notification message is used for notifying that potential safety hazards exist in the current audio signal.
14. The terminal device of claim 13,
the first transceiver is further configured to receive alarm information sent by the network attack processing server through a short message server after receiving the first notification message; and sending a response short message to the short message server according to the input of the alarm information corresponding to the user, and triggering the network attack processing server through the short message server to send the first notification message to the network voice recognition server.
15. The terminal device of claim 10,
the first processor is also used for informing the network voice recognition server that the audio signal of the current terminal equipment has no potential safety hazard; alternatively, the audio processing switch is controlled to restore the connection to the digital-to-analog converter.
16. The terminal device of claim 15,
the first transceiver is also used for sending a second notification message to a network attack processing server so as to forward the second notification message to the network voice recognition server through the network attack processing server; wherein the second notification message is used for notifying that the current audio signal has no potential safety hazard.
17. The terminal device of claim 16,
the first transceiver is further configured to receive warning release information sent by the network attack processing server through the short message server after receiving the second notification message.
18. A server, comprising a second processor and a second transceiver,
the second transceiver is used for receiving a first notification message or a second notification message sent by the terminal equipment; forwarding the first notification message or the second notification message to a network voice recognition server; wherein the content of the first and second substances,
the first notification message is used for notifying that potential safety hazards exist in the current audio signal and is sent by the terminal equipment under the condition that the signal intensity of a high-frequency signal in the audio signal acquired through the high-pass filter is larger than or equal to a preset threshold value; the second notification message is used for notifying that the current audio signal has no potential safety hazard and is sent when the signal intensity of the high-frequency signal is smaller than a preset threshold value after the response processing of the audio signal is stopped by the terminal equipment.
19. A voice communication processing apparatus applied to a terminal device, wherein the terminal device is provided with a high-pass filter connected to a microphone, the apparatus comprising:
the acquisition module is used for acquiring a high-frequency signal in the audio signal through the high-pass filter;
the first processing module is used for stopping response processing on the audio signal under the condition that the signal intensity of the high-frequency signal is greater than or equal to a preset threshold value;
and the second processing module is used for recovering the response processing of the audio signal if the signal intensity of the high-frequency signal is smaller than the preset threshold value after the response processing of the audio signal is stopped.
20. A voice communication processing apparatus applied to a network attack processing server, comprising:
the receiving module is used for receiving a first notification message or a second notification message sent by the terminal equipment;
the sending module is used for forwarding the first notification message or the second notification message to a network voice recognition server; wherein the content of the first and second substances,
the first notification message is used for notifying that potential safety hazards exist in the current audio signal and is sent by the terminal equipment under the condition that the signal intensity of a high-frequency signal in the audio signal acquired through the high-pass filter is larger than or equal to a preset threshold value; the second notification message is used for notifying that the current audio signal has no potential safety hazard and is sent when the signal intensity of the high-frequency signal is smaller than a preset threshold value after the response processing of the audio signal is stopped by the terminal equipment.
21. A terminal device comprising a transceiver, a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the computer program, implements the voice communication processing method according to any one of claims 1 to 8.
22. A server comprising a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the computer program, implements the voice communication processing method of claim 9.
23. 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 voice communication processing method according to any one of claims 1 to 8, or carries out the steps of the voice communication processing method according to claim 9.
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Application publication date: 20200310 |
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