CN106205592B - Noise reduction device and method - Google Patents
Noise reduction device and method Download PDFInfo
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- CN106205592B CN106205592B CN201610474142.0A CN201610474142A CN106205592B CN 106205592 B CN106205592 B CN 106205592B CN 201610474142 A CN201610474142 A CN 201610474142A CN 106205592 B CN106205592 B CN 106205592B
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/128—Vehicles
- G10K2210/1282—Automobiles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/01—Hearing devices using active noise cancellation
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The utility model discloses a noise reduction device, this apparatus is applied to mobile terminal, mobile terminal with fall the equipment communication connection of making an uproar, the apparatus includes: the noise acquisition module is used for acquiring a noise signal near the mobile terminal; and the information sending module is used for sending the noise signal to the noise reduction equipment so that the noise reduction equipment carries out noise reduction processing according to the noise signal. Corresponding noise reduction methods are also provided herein. The noise reduction device and the method can flexibly place the mobile terminal at the position of the relevant area where the noise reduction effect needs to be enhanced according to the needs of a client, and can effectively enhance the noise reduction effect.
Description
Technical Field
The invention relates to the technical field of active noise reduction, in particular to an active noise reduction device and method.
Background
Active Noise reduction ANC (active Noise cancellation) technology has been increasingly used in medium and high-end automobiles, for example, Bose ANC has been successfully applied to cadilack XTS series of automobiles. The in-vehicle ANC system detects in-vehicle noise by using a fixed position microphone arranged in the vehicle, calculates a sound wave signal with a phase opposite to that of the noise through a built-in processing chip, and plays the sound wave signal through a high-reduction-degree loudspeaker to offset related noise, so that the noise reduction effect is achieved. However, the conventional ANC system has the disadvantages that the number of fixedly arranged microphones is too small, the detection accuracy of a noise source is not high, and the overall noise reduction effect is not ideal.
Disclosure of Invention
The invention mainly aims to provide a noise reduction device and a noise reduction method, and aims to solve the problem that the noise reduction effect of the existing noise reduction equipment is not ideal.
In order to achieve the above object, the present invention provides a noise reduction apparatus, which is applied to a mobile terminal, wherein the mobile terminal is in communication connection with a noise reduction device, and the apparatus comprises:
the noise acquisition module is used for acquiring a noise signal near the mobile terminal;
and the information sending module is used for sending the noise signal to the noise reduction equipment so that the noise reduction equipment carries out noise reduction processing according to the noise signal.
Optionally, the apparatus further comprises:
the position determining module is used for receiving a configuration command and playing a preset sound signal after receiving the configuration command;
the information sending module is further configured to send the model of the mobile terminal to the noise reduction device.
Optionally, the apparatus further comprises:
the position determining module is used for receiving an input command and transmitting the reference position information of the mobile terminal to the information sending module after receiving the input command;
the information sending module is further configured to send the reference position information and the model of the mobile terminal to the noise reduction device.
Optionally, the apparatus further comprises a receiving module,
the receiving module is configured to receive the noise reduction signal sent by the noise reduction device, and play the noise reduction signal through a speaker of the mobile terminal.
Optionally, the information sending module of the above apparatus is further configured to send mutual position information of the speaker and the microphone of the mobile terminal to the noise reduction device.
In order to achieve the above object, the present invention further provides a noise reduction method, comprising the steps of:
the mobile terminal establishes communication connection with the noise reduction equipment;
acquiring a noise signal near the mobile terminal;
and sending the noise signal to the noise reduction equipment so that the noise reduction equipment carries out noise reduction processing according to the noise signal.
Optionally, the method further comprises:
the mobile terminal receives a configuration command before acquiring a noise signal nearby the mobile terminal, and plays a preset sound signal after receiving the configuration command; and sending the model of the mobile terminal to the noise reduction equipment.
Optionally, the method further comprises:
the mobile terminal receives an input command before acquiring a noise signal nearby the mobile terminal, and sends the reference position information of the mobile terminal and the model of the mobile terminal to the noise reduction equipment after receiving the input command.
Optionally, the method further comprises:
and receiving a noise reduction signal sent by the noise reduction equipment, and playing the noise reduction signal through a loudspeaker of the mobile terminal.
Optionally, the method further comprises:
and sending the mutual position information of the loudspeaker and the microphone of the mobile terminal to the noise reduction equipment.
According to the noise reduction device and method provided by the invention, the mobile terminal is used as an extension device of the noise reduction system, the mobile terminal can be flexibly placed at a relevant area position where the noise reduction effect is required to be enhanced according to the requirements of customers, the accuracy of noise detection can be improved, so that a built-in processing chip of the noise reduction device can generate a noise reduction signal with a phase opposite to that of the relevant noise signal according to the noise signal detected by a microphone of the mobile terminal and the noise signal detected by an original fixed microphone, and the noise reduction signal is played through a loudspeaker of the noise reduction device to enhance the noise reduction effect; when the loudspeaker of the mobile terminal is suitable for playing the noise reduction signal, the noise reduction signal is played through the loudspeaker of the mobile terminal, and the noise reduction effect can be further enhanced.
Drawings
Fig. 1 is a schematic diagram of a related hardware structure of a mobile terminal implementing various embodiments of the present invention;
FIG. 2 is a schematic diagram of a system framework for active noise reduction in a vehicle according to an embodiment of the present invention;
FIG. 3 is a schematic view of an active noise reduction device in a vehicle according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an active noise reduction method in a vehicle according to an embodiment of the present invention;
FIG. 5 is a schematic illustration of a method of an exemplary embodiment of active noise reduction in a vehicle of the present invention;
FIG. 6 is a method diagram of another exemplary embodiment of active noise reduction in a vehicle according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A mobile terminal implementing various embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture. The term "connected" in the present invention includes direct communication connection and indirect communication connection, and wired communication connection or wireless communication connection, which can be realized by the conventional technology in the field, and the present invention is not described in detail. .
The mobile terminal may be implemented in various forms. For example, the mobile terminal described in the present invention may include devices such as a mobile phone, a PDA (personal digital assistant), a PMP (portable multimedia player), etc., as long as it is configured with a speaker, a microphone, and a short-range communication module, such as a bluetooth module or a Wi Fi module, etc.
Fig. 1 is a schematic diagram of a related hardware structure of a mobile terminal implementing various embodiments of the present invention.
As shown in fig. 1, the mobile terminal 100 includes at least a short-range communication unit 110, an audio input unit 120, a user input unit 130, a memory 140, a power supply unit 170, a controller 180, and the like. Fig. 1 illustrates a mobile terminal having various components, but it is to be understood that not all illustrated components are required to be implemented. More or fewer components may alternatively be implemented. Elements of the mobile terminal will be described in detail below.
The short-range communication unit 110 is a module for supporting short-range communication. Some examples of short-range communication technologies include bluetoothTMWi Fi, Radio Frequency Identification (RFID), Infrared data Association (IrDA), Ultra Wideband (UWB), ZigbeeTMAnd so on.
The audio input unit 120 is used to receive an audio signal. The audio input unit 120 may be a microphone. The microphone receives sound (audio data), and can process such sound into audio data. The processed audio data may be transmitted via the short-range communication module 110.
The user input unit 130 may generate key input data according to a command input by a user to control various operations of the mobile terminal. The user input unit 130 allows a user to input various types of information, and may include a keyboard, dome sheet, touch pad (e.g., a touch-sensitive member that detects changes in resistance, pressure, capacitance, and the like due to being touched), scroll wheel, joystick, and the like. In particular, when the touch pad is superimposed on the display unit 160 in the form of a layer, a touch screen may be formed.
The display unit 160 may display information processed in the mobile terminal 100. For example, a User Interface (UI) or a Graphical User Interface (GUI) or the like related to user operations may be displayed.
The display unit 160 may include at least one of a liquid crystal display (L CD), a thin film transistor L CD (TFT-L CD), an organic light emitting diode (O L ED) display, a flexible display, a three-dimensional (3D) display, and the like, some of which may be configured TO be transparent TO allow a user TO view from the outside, which may be referred TO as a transparent display, a typical transparent display may be, for example, a TO L ED (transparent organic light emitting diode) display, and the like, the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown), the touch screen may be used TO detect a touch input pressure and a touch input position and a touch input area, according TO a particularly desired embodiment.
The audio output module 150 may convert the audio data stored in the memory 140 into an audio signal and output as sound. The audio output module 150 may include a speaker and the like.
The memory 140 may store software programs or the like for processing and controlling operations performed by the controller 180, or may temporarily store data that has been output or is to be output (e.g., a specific sound that needs to be played, etc.). Also, the memory 140 may store data regarding various ways of vibration and audio signals output when a touch is applied to the touch screen.
The memory 140 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, and so on. Also, the mobile terminal 100 may cooperate with a network storage device that performs a storage function of the memory 140 through a network connection.
The controller 180 generally controls the overall operation of the mobile terminal. For example, the controller 180 performs control and processing related to voice calls, data communications, video calls, and the like. The controller 180 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.
The power supply unit 170 receives external power or internal power and provides appropriate power required to operate various elements and components under the control of the controller 180.
For a hardware implementation, the embodiments described herein may be implemented using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a programmable logic device (P L D), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, an electronic unit designed to perform the functions described herein, such an implementation may be implemented in the controller 180 in some cases.
The present invention provides a noise reducing device, shown in fig. 3. Taking the in-vehicle ANC as an example, a system structure of the in-vehicle ANC is schematically shown in fig. 2. Obviously, the present invention is not limited to in-vehicle ANC, and may be used in a place where a corresponding noise reduction system device is provided.
Referring to fig. 3, the noise reduction apparatus provided by the present invention is applied to a mobile terminal, where the mobile terminal is in communication connection with a noise reduction device, and the apparatus includes:
a noise obtaining module 10, configured to obtain a noise signal near the mobile terminal;
the triggering condition, including but not limited to receiving a command by the mobile terminal, entering a noise reduction operating mode, such as an ANC operating mode, may be a command input by a user, or a command from a noise reduction device, such as an ANC system-side device. The noise reduction equipment takes an in-vehicle ANC as an example, and can comprise one or more of ANC equipment, a sound source positioning module and intelligent vehicle-mounted equipment, wherein the sound source positioning module can be internally arranged in the ANC equipment or expanded outside the ANC equipment and is in communication connection with the ANC equipment; the ANC equipment and the sound source positioning module can be used as a part of the intelligent vehicle-mounted equipment or are in communication connection with the intelligent vehicle-mounted equipment to form the noise reduction equipment.
An information sending module 12, configured to send the noise signal to the noise reduction device, so that the noise reduction device performs noise reduction processing according to the noise signal.
Optionally, the apparatus further comprises:
the position determining module 14 is configured to receive a configuration command, and play a preset sound signal after receiving the configuration command;
the information sending module 12 is further configured to send the model of the mobile terminal to the noise reduction device.
Wherein the configuration command may be input by a user or from a noise reduction device; the preset sound signal is used for a sound source positioning module of a noise reduction device to position the position of a loudspeaker of the mobile terminal, and the specific sound signal can be one sound or two sounds of 'beep', for example;
after the noise reduction device (e.g., ANC system side device) receives the model information, the position information of the microphone of the mobile terminal may be determined according to the mutual position information of the microphone and the speaker of the mobile terminal of the model, which is stored in the noise reduction device. Mutual position information of a microphone and a loudspeaker of the mobile terminal can be downloaded by the noise reduction device through the cloud server and stored in a local database.
As another embodiment, the first and second sensors may, optionally,
a position determining module 14, configured to receive an input command, and transmit reference position information of the mobile terminal to the information sending module after receiving the input command;
the information sending module 12 is further configured to send the reference position information and the model of the mobile terminal to the noise reduction device.
For example, after determining the placement position of the mobile terminal in the vehicle, the user clicks an icon corresponding to the previously input corresponding placement position in the mobile terminal, or directly inputs reference position information of the corresponding position (e.g., a center armrest, a main driving storage box, a sub-driving storage box, a rear middle position, and the like), sends the current reference position information and model information of the mobile terminal to the noise reduction device (e.g., ANC system side device), determines the position of the mobile terminal in the vehicle according to the internal space configuration information and the reference position information of the vehicle type by the noise reduction device, and determines the position information of the microphone of the mobile terminal by referring to the mutual position information of the microphone and the speaker of the mobile terminal of the model stored by the noise reduction device.
Optionally, the apparatus further comprises:
a receiving module 16, configured to receive the noise reduction signal sent by the noise reduction device, and play the noise reduction signal through a speaker of the mobile terminal.
Because the performance difference of the loudspeaker of the mobile terminal is large, whether the noise reduction signal is played through the loudspeaker of the mobile terminal needs to be determined according to the specific condition of the loudspeaker of the mobile terminal and whether the frequency range of the noise reduction signal is suitable for the loudspeaker of the mobile terminal to play.
In order to implement the present invention, a noise reduction device (e.g., an ANC system-side device) needs to determine the position of a microphone of a mobile terminal, modify parameters of an active noise reduction algorithm, and complete configuration with the mobile terminal; after the configuration is completed, the mobile terminal can be in a noise detection state, noise information of detected surrounding environment is periodically sent to the noise reduction equipment, the noise reduction equipment calculates a sound wave signal (namely a noise reduction signal) with a phase opposite to that of noise by using a built-in processing chip according to the received noise signal detected by the mobile terminal and the noise signal detected by a microphone at a fixed position configured by the noise reduction equipment, and the sound wave signal is played through a loudspeaker of the noise reduction equipment, so that the noise reduction effect is enhanced.
The noise reduction device (e.g., ANC system side device) may interact commands and data with the mobile terminal through a short-range communication manner (e.g., bluetooth, Wi Fi, etc.), for example, transmit a configuration command, receive a noise signal detected by a microphone of the mobile terminal, and so on.
The mobile terminal participating in noise reduction may be one or more, or one or more of a model number of mobile terminals as long as the mobile terminal is equipped with a microphone, a speaker, and a short-range communication module.
The mobile terminal may extend the function through software, for example, set a dedicated start function button (icon) to start the mobile terminal to enter a working mode participating in noise reduction, receive a command sent by the noise reduction device, and send a detected noise signal to the noise reduction device via the short-range communication module, as long as the mobile terminal and the noise reduction device establish a short-range communication connection relationship, and enter the noise reduction working mode.
Generally, taking active noise reduction in a vehicle as an example, the noise reduction device may store internal space configuration information of a relevant vehicle type, and areas in the vehicle where noise reduction effect needs to be enhanced by the mobile terminal may be enumerated, for example, information of a center armrest, a main driver seat storage box, a passenger seat storage box, a rear row left, a rear row right, and the like, and these areas may be sent to the noise reduction device (for example, ANC system side device) as reference position information of the mobile terminal in the vehicle, and the noise reduction device determines the reference coordinate information of the microphone of the mobile terminal in the vehicle according to the internal space configuration information of the relevant vehicle type and the position of the microphone of the mobile terminal of a corresponding model, so that a sound source positioning module may be omitted.
Alternatively,
the information sending module 14 is further configured to send mutual position information of a speaker and a microphone of the mobile terminal to the noise reduction device.
The mobile terminal can also download the mutual position relation information of the microphone and the loudspeaker of the mobile terminal to a local storage, and send the information to the noise reduction device when the mobile terminal is connected with the noise reduction device (for example, an ANC system side device), so that the noise reduction device is not required to remotely retrieve and download related information, or when the noise reduction device is inconvenient to remotely download related structure information of the mobile terminal, the position information of the microphone of the mobile terminal in the vehicle can be determined.
According to the active noise reduction device, the mobile terminal serves as an extension device of a noise reduction system, the mobile terminal can be flexibly placed at a relevant area position where a noise reduction effect needs to be enhanced according to the needs of a client, the accuracy of noise detection can be improved, so that a built-in processing chip of the noise reduction device can generate a noise reduction signal with a phase opposite to that of the relevant noise signal according to the noise signal detected by a microphone of the mobile terminal and the noise signal detected by an original fixed microphone, the noise reduction signal is played through a loudspeaker of the noise reduction device, and the noise reduction effect is enhanced; when the loudspeaker of the mobile terminal is suitable for playing the noise reduction signal, the noise reduction signal is played through the loudspeaker of the mobile terminal, and the noise reduction effect can be further enhanced.
Based on the noise reduction device, the application also provides a noise reduction method. As shown in fig. 4, includes:
step 20: the mobile terminal establishes communication connection with the noise reduction equipment;
step 23: acquiring a noise signal near the mobile terminal;
step 25: and sending the noise signal to the noise reduction equipment so that the noise reduction equipment carries out noise reduction processing according to the noise signal.
Optionally, before the mobile terminal acquires the noise signal, the method further includes:
step 21: receiving a configuration command, and playing a preset sound signal after receiving the configuration command; and sending the model information of the mobile terminal to the noise reduction equipment.
Optionally, the step 20 may also be:
and 21a, receiving an input command, and sending the reference position information of the mobile terminal and the model of the mobile terminal to the noise reduction equipment after receiving the input command.
Optionally, the method further comprises:
step 27: and receiving a noise reduction signal sent by the noise reduction equipment, and playing the noise reduction signal through a loudspeaker of the mobile terminal.
Optionally, after the step 21/21a and before the step 23, the method may further include:
step 22: and sending the mutual position information of the loudspeaker and the microphone of the mobile terminal to the noise reduction equipment.
According to the active noise reduction method, the mobile terminal serves as an extension device of the noise reduction system, the mobile terminal can be flexibly placed at a relevant area position where the noise reduction effect needs to be enhanced according to the requirements of a client, the accuracy of noise detection can be improved, so that a built-in processing chip of the noise reduction device can generate a noise reduction signal with a phase opposite to that of the relevant noise signal according to the noise signal detected by a microphone of the mobile terminal and the noise signal detected by an original fixed microphone, the noise reduction signal is played through a loudspeaker of the noise reduction device, and the noise reduction effect is enhanced; when the loudspeaker of the mobile terminal is suitable for playing the noise reduction signal, the noise reduction signal is played through the loudspeaker of the mobile terminal, and the noise reduction effect can be further enhanced.
The present invention is further illustrated by the following specific examples.
The first embodiment is as follows:
fig. 5 is an exemplary embodiment provided by the present invention, taking a mobile phone participating in ANC in a vehicle as an example, as shown in fig. 5, including:
step 300: the method comprises the steps that Bluetooth connection or Wi Fi connection is established between a mobile phone and an intelligent vehicle-mounted system, the mobile phone is set to be in an ANC working mode (namely a noise reduction working mode), and the working mode can be set through software.
Step 302: a user starts a 'mobile phone enhanced noise reduction' button of the intelligent vehicle-mounted system and inputs the model of the mobile phone;
step 304: the intelligent vehicle-mounted system judges whether the mobile phone is configured for the first time; if not, go directly to step 306; if yes, go to step 305;
step 305: the intelligent vehicle-mounted system acquires mutual position information of a loudspeaker and a microphone of the mobile phone of the model on the mobile phone from a remote database or a cloud database and stores the mutual position information in a local database;
step 306: the intelligent vehicle-mounted system sends a configuration command to the mobile phone through Bluetooth, and the mobile phone plays a specific sound, such as a beep sound, after receiving the command.
Step 308: after receiving the specific sound emitted by the mobile phone, the fixed microphone of the ANC in the vehicle transmits the specific sound to the sound source positioning module, and the sound source positioning module determines the position of the loudspeaker of the mobile phone in the vehicle. The sound source positioning module may be built in the ANC, or may be a module that is extended outside the ANC.
Step 310: the sound source positioning module transmits the position information of the positioned mobile phone loudspeaker in the vehicle to the intelligent vehicle-mounted system, and the intelligent vehicle-mounted system determines the position of the mobile phone microphone in the vehicle according to the position of the mobile phone loudspeaker in the vehicle and the mutual position information of the microphone of the mobile phone of the model and the loudspeaker on the mobile phone in the local database, and transmits the position of the mobile phone microphone in the vehicle to the ANC equipment in the vehicle.
Step 312: and the in-vehicle ANC equipment automatically modifies related parameters of the active noise reduction algorithm according to the position information of the mobile phone microphone in the vehicle, and completes the configuration of adding the mobile phone into the in-vehicle ANC system.
Wherein, if a plurality of mobile phones participate in ANC noise reduction in the vehicle, the above steps 202 and 212 need to be performed separately for each mobile phone.
Step 314: the method comprises the steps that a plurality of microphones and mobile phone microphones which are arranged at fixed positions of the ANC equipment in the automobile detect noise signals simultaneously, and a processing chip arranged in the ANC equipment in the automobile generates noise reduction signals according to the noise signals detected by the microphones and the mobile phone microphones at the fixed positions.
Step 316: the generated noise reduction signals are sent to a plurality of corresponding fixedly arranged loudspeakers (high-reduction loudspeakers) by the in-vehicle ANC equipment to be played, so that the noise reduction effect of a target area (namely the area where the mobile phone is located) in the vehicle is enhanced;
step 317: in step 316, the ANC device in the vehicle may send the generated noise reduction signal to the mobile phone through the smart vehicle-mounted system, and the mobile phone may play the noise reduction signal through a speaker of the mobile phone when determining that the playing condition is satisfied.
Example two:
fig. 6 is another exemplary embodiment of the present invention, as shown in fig. 6. Unlike fig. 5, the intelligent in-vehicle system stores the internal seat space structure information of the respective vehicle models, for example, the respective position parameter of each seat and the position parameters of the associated storage boxes of the main driver's seat, the sub-driver's seat, and the like; in the configuration process of the ANC equipment and the mobile phone, a user clicks pre-configured icons corresponding to various reference positions on the mobile phone to send current reference seat information or storage box information of the mobile phone, or the user directly inputs the current reference seat information or storage box information of the mobile phone to send to an intelligent vehicle-mounted system, and after the intelligent vehicle-mounted equipment receives the current reference position information of the mobile phone, the intelligent vehicle-mounted equipment determines the coordinate information of a mobile phone microphone in a vehicle and sends the coordinate information to the ANC equipment in the vehicle, and the method comprises the following steps:
step 400-405 synchronization step 300-305;
step 406: a user clicks a reference position icon of the mobile phone in the vehicle, or directly inputs the current reference position information of the mobile phone and sends the information to the intelligent vehicle-mounted system equipment;
step 408: the intelligent vehicle-mounted system equipment determines the position information (coordinate information) of the microphone of the mobile phone in the vehicle according to the stored internal seat space structure information of the corresponding vehicle type and the reference position information sent by the mobile phone, and transmits the position information of the microphone of the mobile phone in the vehicle to the vehicle ANC equipment. Step 410 may be omitted.
Step 412-.
Example three:
the invention also provides another exemplary embodiment, which is applicable to the situations of the first and second embodiments, and is different in that the mobile phone directly downloads and stores the self structure information, namely the mutual position information of the loudspeaker and the microphone, and directly sends the mutual position information of the microphone and the loudspeaker of the mobile phone to the noise reduction device in the process of configuring with the noise reduction device, and the noise reduction device is not required to carry out remote retrieval and downloading.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising" is used to specify the presence of stated features, integers, steps, operations, elements, components, operations.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The device of making an uproar, its characterized in that, the device is applied to mobile terminal, mobile terminal and the interior active equipment communication connection that makes an uproar that falls of car, the device includes:
the noise acquisition module is used for acquiring a noise signal near the mobile terminal;
the information sending module is used for sending the noise signal to the noise reduction equipment so that the noise reduction equipment carries out noise reduction processing according to the noise signal;
the position determining module is used for receiving an input command and transmitting the reference position information of the mobile terminal to the information sending module after receiving the input command;
the information sending module is further configured to send the reference position information and the model of the mobile terminal to the noise reduction device.
2. The apparatus of claim 1, further comprising:
the position determining module is used for receiving a configuration command and playing a preset sound signal after receiving the configuration command;
the information sending module is further configured to send the model of the mobile terminal to the noise reduction device.
3. The apparatus of claim 1 or 2, further comprising a receiving module,
the receiving module is configured to receive the noise reduction signal sent by the noise reduction device, and play the noise reduction signal through a speaker of the mobile terminal.
4. The apparatus of claim 1 or 2, wherein:
the information sending module is further configured to send mutual position information of a speaker and a microphone of the mobile terminal to the noise reduction device.
5. A method of noise reduction, comprising the steps of:
the mobile terminal establishes communication connection with the active noise reduction equipment in the vehicle;
receiving an input command, and sending the reference position information of the mobile terminal and the model of the mobile terminal to the noise reduction equipment after receiving the input command;
acquiring a noise signal near the mobile terminal;
and sending the noise signal to the noise reduction equipment so that the noise reduction equipment carries out noise reduction processing according to the noise signal.
6. The method of claim 5, further comprising:
the mobile terminal receives a configuration command before acquiring a noise signal nearby the mobile terminal, and plays a preset sound signal after receiving the configuration command; and sending the model of the mobile terminal to the noise reduction equipment.
7. The method of claim 5 or 6, further comprising:
and receiving a noise reduction signal sent by the noise reduction equipment, and playing the noise reduction signal through a loudspeaker of the mobile terminal.
8. The method of claim 5 or 6, further comprising:
and sending the mutual position information of the loudspeaker and the microphone of the mobile terminal to the noise reduction equipment.
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| CN107124494B (en) * | 2017-06-21 | 2020-02-14 | 深圳市泰衡诺科技有限公司 | Earphone noise reduction method and device |
| CN109660893B (en) * | 2017-10-10 | 2020-02-14 | 英业达科技有限公司 | Noise eliminating device and noise eliminating method |
| CN107705797B (en) * | 2017-10-18 | 2020-12-22 | 四川蜀天信息技术有限公司 | Intelligent mobile communication system and operation method |
| CN110033754A (en) * | 2018-01-11 | 2019-07-19 | 深圳市诚壹科技有限公司 | A kind of noise-reduction method, device, terminal device and computer readable storage medium |
| CN108538280B (en) * | 2018-02-09 | 2020-05-19 | 艾普科模具材料（上海）有限公司 | Automobile active noise reduction system and method and mobile terminal |
| CN112509549B (en) * | 2020-12-28 | 2022-08-05 | 重庆电子工程职业学院 | Active noise reduction method for ambient noise |
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