CN114325586A - Vehicle-mounted multimedia sound positioning system - Google Patents
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Abstract
A vehicle-mounted multimedia sound positioning system comprises a central computing control unit and at least 3 multimedia area units; the multimedia area unit comprises at least one microphone; the multimedia area unit is in electric signal connection with the central computing control unit; the central computing control unit comprises a sound signal processing module and a sound positioning module; the sound positioning module is in electric signal connection with the sound signal processing module; the sound signal processing module receives the sound information of the microphones of more than three multimedia area units, the sound positioning module calculates the sound delay from the sound source to each microphone, calculates the distance from the sound source to each microphone according to the sound delay, and calculates the spatial position of the sound source according to the distance between the microphones; according to the spatial position of the sound source, the sound signal emitted from the spatial position of the sound source is subjected to enhancement or attenuation processing.
Description
Technical Field
The application belongs to the technical field of vehicle-mounted electronic systems, and particularly relates to a vehicle-mounted multimedia sound positioning system.
Background
In prior art in-vehicle video call systems, sound may come from different locations within the vehicle.
The accuracy of sound source localization determines the experience of subsequent applications; if the sound source is accurately positioned, the target sound source can be well strengthened or weakened; poor user experience may result if the sound source location is inaccurate.
Although the microphone array can well locate the position of sound, the traditional microphone array is a fixed device and has a larger volume and a specific processing circuit, for example, as shown in fig. 8, 8 MIC form a circle array, the larger the diameter of the circle is, the higher the locating precision is, but the larger the diameter is, the worse the installation position can be found in the inner space of the vehicle.
Disclosure of Invention
In the application, a sound signal processing module in the central computing control unit is adopted to receive sound information from a plurality of microphones, an independent microphone array device is not required to be specially installed, signals collected by all the microphones are centralized to the central computing control unit by synchronizing system clocks of all the microphone collection modules, and sound positioning in a vehicle is well realized. By positioning the sound source position, the noise can be filtered or the target voice can be enhanced, or the application of playing stereo sound and the like can be controlled according to a specific pronunciation position.
The technical scheme for solving the technical problems is that the vehicle-mounted multimedia sound positioning system comprises at least 3 multimedia area units and a central computing control unit; the multimedia area unit comprises at least one microphone; the multimedia area unit is in electric signal connection with the central computing control unit; the central computing control unit comprises a sound signal processing module and a sound positioning module; the sound positioning module is in electric signal connection with the sound signal processing module; the sound signal processing module receives the sound information of the microphones of more than three multimedia area units, the sound positioning module calculates the sound time delay from the sound source to each microphone, calculates the distance from the sound source to each microphone according to the sound time delay of the sound information of each microphone, and calculates the spatial position of the sound source according to the distance between each microphone; according to the spatial position of the sound source, the sound signal emitted from the spatial position of the sound source is subjected to enhancement or attenuation processing.
The microphone is connected with the sound signal processing module through an audio signal line.
The vehicle-mounted multimedia sound positioning system also comprises a sound unit, wherein the central computing control unit is electrically connected with the sound unit; the central computing control unit controls the sound units to play audio data, controls the sound playing size, time delay and playing content of each sound unit according to the spatial position of the sound source, and controls the sound playing size and the stereo effect at the spatial position of the sound source.
The multimedia zone unit includes a sound unit C.
The multimedia area unit comprises a display and a camera; the central computing control unit comprises a video signal module and a camera signal processing module; the display of each multimedia area unit is electrically connected with the video signal module, and the video signal module controls the playing content of the display of each multimedia area unit; the display of each multimedia area unit is electrically connected with the camera signal processing module, and the camera signal processing module receives and processes image data shot by each camera.
The multimedia area units comprise network modules, the central computing control unit comprises a central network module, and the area network modules in the multimedia area units are connected with the central computing control unit through network cables.
The central computing control unit comprises a network time synchronization module, the multimedia area unit comprises a time synchronization module, and the time synchronization module and the network time synchronization module synchronize the time information of the central computing control unit and the multimedia area unit. The central computing control unit comprises a central clock synchronization module, the multimedia area unit comprises a clock synchronization module, the central clock synchronization module and the clock synchronization module synchronize clock information, the clock information is used for computing sound delay, and the clock synchronization module is connected with the central clock synchronization module through a clock synchronization signal line.
The microphone sound information of the multimedia area unit received by the sound signal processing module is digital voice coding information, and the digital voice coding information comprises clock information.
The central computing control unit comprises a working mode 1, the working mode 1 locks and sets a multimedia area unit according to an input instruction, performs enhancement processing on sound signals emitted by the space position corresponding to the set multimedia area unit, performs attenuation processing on sounds in other areas, and drives the sound unit to enhance and set the sound signals corresponding to the space position corresponding to the multimedia area unit.
The central computing control unit comprises a working mode 2, recognizes voice information sent by each space position in the vehicle, enhances the voice information and reduces non-voice information; the central computing control unit sends the enhanced voice information through the central network module, receives voice call information input from the outside through the central network module, and drives the sound unit to play the enhanced voice call information.
One of the benefits of the technical scheme in the application is that the same sound signal processing module in the central computing control unit is used for receiving the sound information of the microphones of the multimedia area units, namely, the same sound signal collecting and processing system is adopted for all the sound signals from different positions, so that the background noise of the sound signal collecting and processing system can be kept consistent for all the input sound signals, and the subsequent speech signal processing is facilitated. The problem that different system background noises can be generated by respectively adopting independent sound signal acquisition and processing systems at different positions is avoided; these background noises may affect subsequent speech signal processing, especially when the distance between different positions of the acquired sound signal is small and the characteristics of the speech signals at different positions are to be distinguished, these background noises may affect the accuracy of subsequent signal processing, which results in that the characteristics of different sound signals cannot be accurately identified, and thus accurate sound source localization cannot be performed. By using the technical scheme of the application, the sound source can be accurately positioned due to the consistent background noise of each sound signal.
The second beneficial effect of the technical scheme in the application is that the microphone is connected with the sound signal processing module through the audio signal line, so that the sound signal entering the sound signal processing module is the original sound signal to the maximum extent, and the background noise introduced in the signal transmission process is further reduced.
The third beneficial effect of the technical scheme in the application is that the central computing control unit controls the size, the time delay and the content of the sound played by each sound unit according to the spatial position of the sound source, and controls the size and the stereo effect of the sound played at the spatial position of the sound source. The played sound is also a part of the sound source signal and can also become a part of the background noise, and when the output sound can be controlled, the system has the capability of controlling the background noise of the spatial position of the sound source, so that the background noise of the system can be reduced, and the difficulty of subsequent signal processing can be reduced.
The beneficial effects of the technical scheme in this application are that, the regional unit of multimedia includes stereo set unit C, makes the regional unit of multimedia have sound and outwards puts the ability, has further richened the output ability of sound signal, makes on-vehicle multimedia sound positioning system still have the ability of multiple spot broadcast sound.
The beneficial effects of the technical scheme in the application are that, the multimedia area unit includes display, camera, makes the multimedia area unit have demonstration and camera shooting ability, makes on-vehicle multimedia sound positioning system still have the ability of multiple spot broadcast video and acquisition image.
The network module in the multimedia area unit and the central network module of the central computing control unit enable the multimedia area units and the central computing control unit to have the capability of connecting the network, and the network module in the multimedia area unit and the central network module of the central computing control unit are connected through the network cable, so that reliable wired network connection is formed in the vehicle.
The technical scheme of the application has the advantages that the time synchronization module and the network time synchronization module synchronize the time information of the central computing control unit and the multimedia area unit, and the time synchronization between the time synchronization module and the network time synchronization module enables the vehicle-mounted multimedia sound positioning system to have time synchronization information when the vehicle-mounted multimedia sound positioning system performs sound positioning, so that subsequent voice signal processing can be performed more conveniently.
The technical scheme has the beneficial effects that the central clock synchronization module and the clock synchronization module synchronize clock information, the clock information is used for calculating sound delay, and the clock synchronization module is connected with the central clock synchronization module through a clock synchronization signal line. The clock information is connected through a clock synchronization signal line, so that the synchronization accuracy between the central computing control unit and the multimedia area units can be improved to the level of the maximum resolution of the clock signal, the synchronization accuracy of the microphone sound information acquired by each multimedia area unit is further improved, and the sound source positioning accuracy of the vehicle-mounted multimedia sound positioning system can be further improved.
The technical scheme has the beneficial effects that the microphone sound information of the multimedia area unit received by the sound signal processing module is digital voice coding information, and the digital voice coding information contains clock information to provide clock information for subsequent voice signal processing, so that the sound source can be conveniently and accurately positioned.
The technical scheme has the beneficial effects that the multimedia regional unit can be locked and set according to the input instruction, the sound signals sent out by the spatial position corresponding to the set multimedia regional unit are enhanced, other regional sounds are weakened, and the central computing control unit drives the sound unit to enhance the sound signals corresponding to the spatial position corresponding to the set multimedia regional unit. The signal processing mode can intelligently select and amplify the information of the sound source at the appointed position according to the requirement in the vehicle-mounted audio call or the video call, and can conveniently select the target sound source in the multi-person vehicle-mounted voice call.
One of the ten beneficial effects of the technical scheme in the application is that the voice information sent out from each space position in the vehicle can be identified, the voice information is enhanced, and the non-voice information is reduced; the central computing control unit sends the enhanced voice information through the central network module, receives voice call information input from the outside through the central network module, and drives the sound unit to play the enhanced voice call information.
Drawings
FIG. 1 is a schematic diagram of a particular embodiment of an in-vehicle multimedia sound localization system;
FIG. 2 is one of the system frameworks for an in-vehicle multimedia sound localization system;
FIG. 3 is a second schematic diagram of the system framework of the vehicle multimedia sound localization system;
FIG. 4 is a third schematic diagram of a system framework of the in-vehicle multimedia sound localization system;
FIG. 5 is a fourth schematic system framework of the in-vehicle multimedia sound localization system;
FIG. 6 is a fifth schematic diagram of a system framework of the in-vehicle multimedia sound localization system;
FIG. 7 is a sixth schematic of a system framework for an in-vehicle multimedia sound localization system;
fig. 8 is a schematic diagram of a prior art microphone array for sound localization.
Detailed Description
The present disclosure is described in further detail below with reference to the attached drawings. It should be noted that the following description is of the preferred embodiments of the present invention and should not be construed as limiting the invention in any way. The description of the preferred embodiments of the present invention is made merely for the purpose of illustrating the general principles of the invention. The first, second and the numbers containing the English letters ABC in the present application are for distinguishing expressions and do not represent the sequential relationship in time or space.
In the embodiment of the vehicle-mounted multimedia sound localization system shown in fig. 2 to 4, the system comprises a central computing control unit and 4 multimedia area units; respectively, a 1 st multimedia zone unit, a 2 nd multimedia zone unit, a 3 rd multimedia zone unit and a 4 th multimedia zone unit. The number of multimedia area units in practical applications may be more than 3.
In the embodiment of the vehicle-mounted multimedia sound localization system shown in fig. 2 to 4, each multimedia area unit comprises a microphone, a display and a camera; the multimedia area unit is in electric signal connection with the central computing control unit; the central computing control unit comprises a sound signal processing module and a sound positioning module; the sound positioning module is in electric signal connection with the sound signal processing module; the sound signal processing module receives the sound information of the microphones of more than three multimedia area units, the sound positioning module calculates the sound time delay from the sound source to each microphone, calculates the distance from the sound source to each microphone according to the sound time delay of the sound information of each microphone, and calculates the spatial position of the sound source according to the distance between each microphone; according to the spatial position of the sound source, the sound signal emitted from the spatial position of the sound source is subjected to enhancement or attenuation processing. The central computing control unit comprises a video signal module and a camera signal processing module; the display of each multimedia area unit is electrically connected with the video signal module, and the video signal module controls the playing content of the display of each multimedia area unit; the display of each multimedia area unit is electrically connected with the camera signal processing module, and the camera signal processing module receives and processes image data shot by each camera. The multimedia area unit comprises a display and a camera, so that the multimedia area unit has the display and camera shooting capabilities, and the vehicle-mounted multimedia sound positioning system also has the capabilities of playing videos and acquiring images at multiple points.
In the embodiment of the car multimedia sound localization system shown in fig. 1, 4 multimedia area units are also included, and the positions of the 4 multimedia area units correspond to the positions of four seats respectively. Number 0111 in fig. 1 is a display and/or camera in the 1 st multimedia area unit, and number 0112 in fig. 1 is a microphone in the 1 st multimedia area unit. The reference numeral 0122 in fig. 1 is a display and/or a camera in the 2 nd multimedia zone unit, and the reference numeral 0121 in fig. 1 is a microphone in the 2 nd multimedia zone unit. Reference numeral 0132 in fig. 1 is a display and/or camera in the 3 rd multimedia zone unit, and reference numeral 0131 in fig. 1 is a microphone in the 3 rd multimedia zone unit. Reference numeral 0142 in fig. 1 is a display and/or camera in the 4 th multimedia zone unit, and 0121 in fig. 1 is a microphone in the 4 th multimedia zone unit.
In the embodiment of the vehicle-mounted multimedia sound localization system shown in fig. 1, the 1 st, 2 nd, 3 rd and 4 th multimedia area units form a multimedia area unit array, and a plurality of microphones form a microphone array.
A sound signal processing module in the central computing control unit receives sound information of microphones of the four multimedia area units, a sound positioning module calculates sound time delay from a sound source to the four microphones, and the distances from the sound source to the four microphones are calculated according to the sound time delay of the sound information of the four microphones, wherein the distances between the four microphones can be known or set; according to the distances among the four microphones, the spatial position information of the sound source can be calculated; according to the spatial position information of the sound source, the sound signal emitted from the spatial position of the sound source is subjected to enhancement or attenuation processing. The spatial position information of the sound source may be a position with respect to the multimedia zone unit. When the sound source position is positioned clearly, the operations such as sound collection and playing of the multimedia area unit can be performed very conveniently. Such as amplifying or attenuating the target sound signal in a manner weighted by the sound signals picked up by the microphones.
In the embodiment of the vehicle-mounted multimedia sound localization system shown in fig. 2 to 4, the same sound signal processing module in the central computing control unit is used to receive the sound information of the microphones of the multimedia area units, that is, the same sound signal collecting and processing system is used for all the sound signals from different positions, so that the background noise of the sound signal collecting and processing system is kept consistent for all the input sound signals, thereby facilitating the subsequent speech signal processing. The problem that different system background noises can be generated by respectively adopting independent sound signal acquisition and processing systems at different positions is avoided; these background noises may affect subsequent speech signal processing, especially when the distance between different positions of the acquired sound signal is small and the characteristics of the speech signals at different positions are to be distinguished, these background noises may affect the accuracy of subsequent signal processing, which results in that the characteristics of different sound signals cannot be accurately identified, and thus accurate sound source localization cannot be performed. By using the technical scheme of the application, the sound source can be accurately positioned due to the consistent background noise of each sound signal.
In some embodiments of the car multimedia sound localization system not shown in the drawings, the microphone and the sound signal processing module are connected by an audio signal line. The microphone is connected with the sound signal processing module through an audio signal line, so that the sound signal entering the sound signal processing module is ensured to be the original sound signal to the maximum extent, and background noise introduced in the signal transmission process is further reduced.
In the embodiment of the vehicle multimedia sound localization system shown in fig. 3, the vehicle multimedia sound localization system further includes two sound units, namely, a sound unit a and a sound unit B, and the central computing control unit is electrically connected to the sound units; the central computing control unit controls the sound units to play audio data, controls the sound playing size, time delay and playing content of each sound unit according to the spatial position of the sound source, and controls the sound playing size and the stereo effect at the spatial position of the sound source.
In the embodiment of the car multimedia sound localization system shown in fig. 1, two sound units a are included, labeled 0151 and 0153 respectively; two sound units B are included, numbered 0152 and 0154, respectively. Of course there may be more sound units a and B in number and location.
The central calculation control unit controls the size, time delay and playing content of sound played by each sound unit according to the spatial position of the sound source, and controls the size and stereo effect of the played sound at the spatial position of the sound source. The played sound is also a part of the sound source signal and can also become a part of the background noise, and when the output sound can be controlled, the system has the capability of controlling the background noise of the spatial position of the sound source, so that the background noise of the system can be reduced, and the difficulty of subsequent signal processing can be reduced.
In the embodiment of the vehicle-mounted multimedia sound localization system shown in fig. 4 to 5, the multimedia area units include network modules, the central computing control unit includes a central network module, and the area network modules in the multimedia area units are connected with the central computing control unit through network cables. The network module in the multimedia area unit and the central network module of the central computing control unit enable each multimedia area unit and the central computing control unit to have the capability of connecting the network, and the network module in the multimedia area unit and the central network module of the central computing control unit are connected through a network cable, so that reliable wired network connection is formed in the vehicle.
In the embodiment of the car-mounted multimedia sound localization system shown in fig. 5, the central computing control unit comprises a network time synchronization module, and the multimedia area unit comprises a time synchronization module, and the time synchronization module and the network time synchronization module synchronize the time information of the central computing control unit and the multimedia area unit. The time synchronization module and the network time synchronization module synchronize the time information of the central computing control unit and the multimedia area unit, and the time synchronization between the time synchronization module and the network time synchronization module enables the vehicle-mounted multimedia sound positioning system to have time synchronization information when positioning sound, so that subsequent voice signal processing can be performed more conveniently.
In the embodiment of the vehicle-mounted multimedia sound localization system shown in fig. 5, the microphone sound information of the multimedia area unit received by the sound signal processing module is digital speech coding information, and the digital speech coding information includes clock information. The microphone sound information of the multimedia area unit received by the sound signal processing module is digital voice coding information, and the digital voice coding information comprises clock information to provide clock information for subsequent voice signal processing, so that the sound source can be conveniently and accurately positioned.
In the embodiment of the vehicle-mounted multimedia sound positioning system shown in fig. 6, the central computing control unit includes a central clock synchronization module, the multimedia area unit includes a clock synchronization module, the central clock synchronization module synchronizes clock information with the clock synchronization module, the clock information is used for computing sound delay, and the clock synchronization module is connected with the central clock synchronization module through a clock synchronization signal line. The central clock synchronization module and the clock synchronization module synchronize clock information, the clock information is used for calculating sound delay, and the clock synchronization module and the central clock synchronization module are connected through a clock synchronization signal line. The clock information is connected through a clock synchronization signal line, so that the synchronization accuracy between the central computing control unit and the multimedia area units can be improved to the level of the maximum resolution of the clock signal, the synchronization accuracy of the microphone sound information acquired by each multimedia area unit is further improved, and the sound source positioning accuracy of the vehicle-mounted multimedia sound positioning system can be further improved.
In the embodiment of an in-vehicle multimedia sound localization system shown in fig. 7, the multimedia zone unit includes a sound unit C. The multimedia area unit comprises a sound unit C, so that the multimedia area unit has sound playing capacity, the output capacity of sound signals is further enriched, and the vehicle-mounted multimedia sound positioning system also has the capacity of playing sound at multiple points.
In some embodiments of the vehicle-mounted multimedia sound localization system not shown in the drawings, the central computing control unit includes a working mode 1, the working mode 1 locks the set multimedia area unit according to the input instruction, performs enhancement processing on the sound signal emitted from the spatial position corresponding to the set multimedia area unit, performs attenuation processing on the sound in other areas, and drives the sound unit to enhance the sound signal corresponding to the spatial position corresponding to the set multimedia area unit. The central computing control unit drives the sound unit to enhance the sound signal corresponding to the spatial position corresponding to the set multimedia area unit. The signal processing mode can intelligently select and amplify the information of the sound source at the appointed position according to the requirement in the vehicle-mounted audio call or the video call, and can conveniently select the target sound source in the multi-person vehicle-mounted voice call.
In some embodiments of the vehicle multimedia sound localization system not shown in the drawings, the central computing control unit includes a working mode 2, and the central computing control unit recognizes voice information sent from each spatial position in the vehicle, enhances the voice information, and reduces non-voice information; the central computing control unit sends the enhanced voice information through the central network module, receives voice call information input from the outside through the central network module, and drives the sound unit to play the enhanced voice call information. The voice information sent by each space position in the car can be identified, the voice information is enhanced, and the non-voice information is reduced; the central computing control unit sends the enhanced voice information through the central network module, receives voice call information input from the outside through the central network module, and drives the sound unit to play the enhanced voice call information.
The vehicle-mounted multimedia sound positioning system comprises a central computing control unit and at least 3 multimedia area units; the multimedia area unit comprises at least one microphone; the multimedia area unit is in electric signal connection with the central computing control unit; the central computing control unit comprises a sound signal processing module and a sound positioning module; the sound positioning module is in electric signal connection with the sound signal processing module; the sound signal processing module receives the sound information of the microphones of more than three multimedia area units, the sound positioning module calculates the sound delay from the sound source to each microphone, calculates the distance from the sound source to each microphone according to the sound delay, and calculates the spatial position of the sound source according to the distance between the microphones; according to the spatial position of the sound source, the sound signal emitted from the spatial position of the sound source is subjected to enhancement or attenuation processing.
While the invention has been illustrated and described in terms of a preferred embodiment and several alternatives, the invention is not limited by the specific description in this specification. Other additional alternative or equivalent components may also be used in the practice of the present invention.
Claims (11)
1. An in-vehicle multimedia sound localization system, comprising: at least 3 multimedia area units, a central computing control unit;
the multimedia area unit comprises at least one microphone; the multimedia area unit is in electric signal connection with the central computing control unit;
the central computing control unit comprises a sound signal processing module and a sound positioning module; the sound positioning module is in electric signal connection with the sound signal processing module;
the sound signal processing module receives the sound information of the microphones of more than three multimedia area units, the sound positioning module calculates the sound time delay from the sound source to each microphone, calculates the distance from the sound source to each microphone according to the sound time delay of the sound information of each microphone, and calculates the spatial position of the sound source according to the distance between each microphone;
according to the spatial position of the sound source, the sound signal emitted from the spatial position of the sound source is subjected to enhancement or attenuation processing.
2. The vehicular multimedia sound localization system according to claim 1, wherein the microphone is connected to the sound signal processing module through an audio signal line.
3. The vehicle multimedia sound localization system of claim 1, further comprising a sound unit, wherein the central computing control unit is electrically connected to the sound unit; the central computing control unit controls the sound units to play audio data, controls the sound playing size, time delay and playing content of each sound unit according to the spatial position of the sound source, and controls the sound playing size and the stereo effect at the spatial position of the sound source.
4. The in-vehicle multimedia sound localization system of claim 3, wherein the multimedia zone unit comprises a sound unit C.
5. The vehicle multimedia sound localization system of claim 1, wherein the multimedia zone unit comprises a display, a camera; the central computing control unit comprises a video signal module and a camera signal processing module; the display of each multimedia area unit is electrically connected with the video signal module, and the video signal module controls the playing content of the display of each multimedia area unit; the display of each multimedia area unit is electrically connected with the camera signal processing module, and the camera signal processing module receives and processes image data shot by each camera.
6. The vehicle-mounted multimedia sound localization system according to claim 1, wherein the multimedia area units comprise network modules, the central computing control unit comprises a central network module, and the area network modules in the multimedia area units are connected with the central computing control unit through network cables.
7. The on-vehicle multimedia sound localization system of claim 1, wherein the central computing control unit comprises a network time synchronization module, and the multimedia area unit comprises a time synchronization module, and the time synchronization module and the network time synchronization module synchronize the time information of the central computing control unit and the multimedia area unit.
8. The vehicle-mounted multimedia sound localization system according to any one of claims 1 to 6, wherein the central computing control unit comprises a central clock synchronization module, the multimedia area unit comprises a clock synchronization module, the central clock synchronization module synchronizes clock information with the clock synchronization module, the clock information is used for calculating sound delay, and the clock synchronization module is connected with the central clock synchronization module through a clock synchronization signal line.
9. The on-board multimedia sound localization system according to claim 8, wherein the microphone sound information of the multimedia area unit received by the sound signal processing module is digital speech coding information, and the digital speech coding information includes clock information.
10. The vehicle-mounted multimedia sound positioning system according to claim 3, wherein the central computing control unit comprises a working mode 1, the working mode 1 locks the set multimedia area unit according to the input instruction, performs enhancement processing on the sound signal emitted from the spatial position corresponding to the set multimedia area unit, performs attenuation processing on the sound in other areas, and drives the sound unit to enhance the sound signal corresponding to the spatial position corresponding to the set multimedia area unit.
11. The vehicle-mounted multimedia sound positioning system according to claim 3, wherein the central computing control unit comprises an operating mode 2, and the central computing control unit identifies voice information sent from each spatial position in the vehicle, enhances the voice information and reduces non-voice information; the central computing control unit sends the enhanced voice information through the central network module, receives voice call information input from the outside through the central network module, and drives the sound unit to play the enhanced voice call information.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204669592U (en) * | 2015-05-20 | 2015-09-23 | 长春富维伟世通汽车电子有限公司 | Automobile instrument voice signal detects and harvester |
| CN104991573A (en) * | 2015-06-25 | 2015-10-21 | 北京品创汇通科技有限公司 | Locating and tracking method and apparatus based on sound source array |
| CN106328156A (en) * | 2016-08-22 | 2017-01-11 | 华南理工大学 | Microphone array voice reinforcing system and microphone array voice reinforcing method with combination of audio information and video information |
| US20170213459A1 (en) * | 2016-01-22 | 2017-07-27 | Flex Ltd. | System and method of identifying a vehicle and determining the location and the velocity of the vehicle by sound |
| CN107064878A (en) * | 2017-06-28 | 2017-08-18 | 山东大学 | A kind of sound localization method based on high-precision GPS and its realize system |
| CN108962272A (en) * | 2018-06-21 | 2018-12-07 | 湖南优浪语音科技有限公司 | Sound pick-up method and system |
| CN109545219A (en) * | 2019-01-09 | 2019-03-29 | 北京新能源汽车股份有限公司 | Vehicle-mounted voice interaction method, system, equipment and computer readable storage medium |
| CN109788382A (en) * | 2019-01-25 | 2019-05-21 | 深圳大学 | A kind of distribution microphone array pickup system and method |
| CN111768444A (en) * | 2020-04-30 | 2020-10-13 | 苏州思必驰信息科技有限公司 | Sound source based information processing method and device and computer readable medium |
| CN112216295A (en) * | 2019-06-25 | 2021-01-12 | 大众问问(北京)信息科技有限公司 | Sound source positioning method, device and equipment |
| CN113064118A (en) * | 2021-03-19 | 2021-07-02 | 维沃移动通信有限公司 | Sound source positioning method and device |
| CN113514801A (en) * | 2021-04-28 | 2021-10-19 | 成都启英泰伦科技有限公司 | Microphone array sound source positioning method and sound source identification method based on deep learning |
-
2021
- 2021-12-31 CN CN202111650295.3A patent/CN114325586B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204669592U (en) * | 2015-05-20 | 2015-09-23 | 长春富维伟世通汽车电子有限公司 | Automobile instrument voice signal detects and harvester |
| CN104991573A (en) * | 2015-06-25 | 2015-10-21 | 北京品创汇通科技有限公司 | Locating and tracking method and apparatus based on sound source array |
| US20170213459A1 (en) * | 2016-01-22 | 2017-07-27 | Flex Ltd. | System and method of identifying a vehicle and determining the location and the velocity of the vehicle by sound |
| CN106328156A (en) * | 2016-08-22 | 2017-01-11 | 华南理工大学 | Microphone array voice reinforcing system and microphone array voice reinforcing method with combination of audio information and video information |
| CN107064878A (en) * | 2017-06-28 | 2017-08-18 | 山东大学 | A kind of sound localization method based on high-precision GPS and its realize system |
| CN108962272A (en) * | 2018-06-21 | 2018-12-07 | 湖南优浪语音科技有限公司 | Sound pick-up method and system |
| CN109545219A (en) * | 2019-01-09 | 2019-03-29 | 北京新能源汽车股份有限公司 | Vehicle-mounted voice interaction method, system, equipment and computer readable storage medium |
| CN109788382A (en) * | 2019-01-25 | 2019-05-21 | 深圳大学 | A kind of distribution microphone array pickup system and method |
| CN112216295A (en) * | 2019-06-25 | 2021-01-12 | 大众问问(北京)信息科技有限公司 | Sound source positioning method, device and equipment |
| CN111768444A (en) * | 2020-04-30 | 2020-10-13 | 苏州思必驰信息科技有限公司 | Sound source based information processing method and device and computer readable medium |
| CN113064118A (en) * | 2021-03-19 | 2021-07-02 | 维沃移动通信有限公司 | Sound source positioning method and device |
| CN113514801A (en) * | 2021-04-28 | 2021-10-19 | 成都启英泰伦科技有限公司 | Microphone array sound source positioning method and sound source identification method based on deep learning |
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