CN116744214A - Vehicle-mounted space audio technology - Google Patents
Vehicle-mounted space audio technology Download PDFInfo
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- CN116744214A CN116744214A CN202210199825.5A CN202210199825A CN116744214A CN 116744214 A CN116744214 A CN 116744214A CN 202210199825 A CN202210199825 A CN 202210199825A CN 116744214 A CN116744214 A CN 116744214A
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- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
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- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000001568 sexual effect Effects 0.000 abstract 1
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- 230000008447 perception Effects 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
Abstract
The invention provides a vehicle-mounted space audio technology, and relates to the technical field of vehicle-mounted audio. The vehicle-mounted space audio technology comprises a host, wherein a space sensing mechanism is formed by an acceleration sensor, a gyroscope and an electronic compass, a DSP digital signal processor is arranged on the right side of the host, a power amplifier is arranged on the right side of the DSP digital signal processor, eight frequency dividers are connected with the power amplifier in a sexual manner, and a loudspeaker is arranged on one side of each frequency divider. The running state of the vehicle is obtained through the space sensing mechanism, the sound channels are switched by the DSP digital signal processor with reference to data, after the movement angle of the vehicle is changed correspondingly, the output sound channels of the audio are changed reversely and at the same angle, the direction conversion of the vehicle is combined, the adjustment of the audio position is carried out, the steering along with the vehicle head is realized, the sound sounding space position is unchanged, the real three-dimensional surrounding effect is created, and the listening experience of passengers in the vehicle is improved.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted audio, in particular to a vehicle-mounted spatial audio technology.
Background
Due to the high-speed development of economy, the living standard of people is increased, the number of people who own vehicles is increased, the requirements of people on vehicle configuration are increased, the vehicle-mounted sound system of the vehicles is improved, the better tone quality and more sound channels are popularized gradually, and 5.1 sound channels or more schemes are generally provided.
The current improvement of the automobile sound system is limited to a better hearing experience, the perception is very small in most common receivers, the VR, AR and three-dimensional space modeling industry is developed in recent years, the requirements of users on stereo space hearing are increasing, no matter VR audio or mobile equipment space audio are limited, in terms of usability, the users need a combination of a plurality of expensive professional hardware devices, a specific resource is added to achieve a given effect, in terms of use scenes, the users are mainly a better and novel audiovisual experience, and the users have no function expansion and derivatization in other fields.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a vehicle-mounted space audio technology, and solves the problem of poor stereoscopic surrounding effect of the traditional vehicle-mounted audio.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a vehicle-mounted space audio frequency technique, includes the host computer, host computer top intermediate position fixedly connected with gyroscope, host computer top left side fixedly connected with acceleration sensor, be sharp distribution between acceleration sensor, gyroscope and the electronic compass, acceleration sensor, gyroscope and the electronic compass constitution space perception mechanism, the host computer right side is provided with DSP digital signal processor, DSP digital signal processor right side is provided with the power amplifier, the power amplifier nature is connected with eight frequency dividers, frequency divider one side all is provided with the speaker, eight the speaker divide into A1, B2, C3, D4, E5, F6, G7 and H8 according to clockwise order, wherein the speaker with A1 orientation is as basic calibration direction.
Preferably, the host includes a sound source and a parameter processor, the sound source stores an audio file, the parameter processor is electrically connected with the space sensing mechanism, the parameter processor is electrically connected with the DSP digital signal processor, the DSP digital signal processor is electrically connected with the power amplifier, the frequency divider is electrically connected with the speaker, and the DSP digital signal processor is internally provided with an automatic channel switching program.
Preferably, a method for using the vehicle-mounted spatial audio technology comprises the following steps:
s1, acquiring a running state of a vehicle
The acceleration sensor can be used for acquiring the acceleration of the vehicle during running, the gyroscope is used for acquiring the running direction of the vehicle, the electronic compass is used for acquiring the direct south direction of the vehicle during running, and the acquired running state information of the vehicle is transmitted to the parameter processor in the host computer for calculation processing to obtain the movement angle and direction change of the vehicle;
s2, switching sound channels through signal processing
The DSP digital signal processor receives the data calculated by the parameter processor, calculates a channel switching value which keeps a sound field unchanged through automatic channel switching program, changes the output channel identification of the audio in real time, and changes the output channel of the audio in opposite and same angles after the motion angle of the vehicle is correspondingly changed;
s3, outputting audio
The DSP digital signal processor outputs the modified audio to the corresponding sound channel in the power amplifier, and then the modified audio is transmitted to the loudspeaker of the corresponding sound channel through the frequency divider to finally output the sound of the optimized position.
Working principle: the acceleration sensor can be used for acquiring the acceleration of the vehicle during running, the gyroscope is used for acquiring the running direction of the vehicle, the electronic compass is used for acquiring the direct south direction of the vehicle during running, and the acquired running state information of the vehicle is transmitted to the parameter processor in the host computer for calculation processing to obtain the movement angle and direction change of the vehicle; the DSP digital signal processor receives the data calculated by the parameter processor, calculates a channel switching value which keeps a sound field unchanged through automatic channel switching program, changes the output channel identification of the audio in real time, and changes the output channel of the audio in opposite and same angles after the motion angle of the vehicle is correspondingly changed; the DSP digital signal processor outputs the modified audio to the corresponding sound channel in the power amplifier, and then the modified audio is transmitted to the loudspeaker of the corresponding sound channel through the frequency divider to finally output the sound of the optimized position.
The invention provides a vehicle-mounted space audio technology. The beneficial effects are as follows:
according to the invention, the running state of the vehicle is obtained through the space sensing mechanism, the sound channels are switched through the DSP digital signal processor by referring to the data, after the movement angle of the vehicle is changed correspondingly, the output sound channels of the audio are changed reversely and at the same angle, the adjustment of the audio position is carried out by combining the direction conversion of the vehicle, the space audio of the vehicle is realized, the important function is realized, the system dynamically obtains the output position of the sound channels to carry out three-dimensional audio output after the calculation of the program of the sound channels is automatically switched, the steering along with the vehicle head is realized, the sound sounding space position is unchanged, the real three-dimensional surrounding effect is created, and the listening experience of passengers in the vehicle is improved.
Drawings
FIG. 1 is a schematic diagram of the structural distribution of the present invention;
fig. 2 is a block diagram of a host structure according to the present invention.
1, a host; 2. an acceleration sensor; 3. a gyroscope; 4. an electronic compass; 5. a DSP digital signal processor; 6. a power amplifier; 7. a frequency divider; 8. and a speaker.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
as shown in fig. 1-2, an embodiment of the present invention provides a vehicle-mounted spatial audio technology, which includes a host 1, a gyroscope 3 is fixedly connected to a middle position of a top of the host 1, an acceleration sensor 2 is fixedly connected to a left side of a top of the host 1, an electronic compass 4 is fixedly connected to a right side of a top of the host 1, the acceleration sensor 2, the gyroscope 3 and the electronic compass 4 are linearly distributed, the acceleration sensor 2, the gyroscope 3 and the electronic compass 4 form a spatial sensing mechanism, a DSP digital signal processor 5 is disposed on a right side of the host 1, a power amplifier 6 is disposed on a right side of the DSP digital signal processor 5, eight frequency dividers 7 are electrically connected to the power amplifier 6, speakers 8 are disposed on one side of the frequency dividers 7, the eight speakers 8 are respectively classified into A1, B2, C3, D4, E5, F6, G7 and H8 according to a clockwise order, wherein the speakers 8 oriented by A1 are used as a basic calibration direction.
The host 1 comprises a sound source and a parameter processor, wherein an audio file is stored in the sound source, the parameter processor is electrically connected with the space sensing mechanism, the parameter processor is electrically connected with the DSP digital signal processor 5, the DSP digital signal processor 5 is electrically connected with the power amplifier 6, the frequency divider 7 is electrically connected with the loudspeaker 8, and an automatic channel switching program is carried in the DSP digital signal processor 5.
The application method of the vehicle-mounted space audio technology comprises the following steps:
s1, acquiring a running state of a vehicle
The acceleration sensor 2 can acquire the acceleration of the vehicle during running, the gyroscope 3 can acquire the running direction of the vehicle, the electronic compass 4 can acquire the forward and backward direction of the vehicle during running, and the acquired running state information of the vehicle is transmitted to the parameter processor in the host 1 for calculation processing to obtain the movement angle and direction change of the vehicle;
s2, switching sound channels through signal processing
The DSP digital signal processor 5 receives the data calculated by the parameter processor, calculates a channel switching value which keeps a sound field unchanged through automatic channel switching program, changes the output channel identification of the audio in real time, and after the motion angle of the vehicle is correspondingly changed, the output channel of the audio is modified and switched in opposite and same angles;
s3, outputting audio
The DSP digital signal processor 5 outputs the modified audio to the corresponding channel in the power amplifier 6, and then transmits the modified audio to the speaker 8 of the corresponding channel through the frequency divider 7 to finally output the sound of the optimized position.
The running state of the vehicle is obtained through the space sensing mechanism, the sound channel is switched through the DSP digital signal processor 5 by referring to data, after the movement angle of the vehicle is changed correspondingly, the output sound channel of the audio is changed reversely and at the same angle, the direction conversion of the vehicle is combined, the adjustment of the audio position is carried out, the space audio of the vehicle is realized, the system has an important function, after calculation through the automatic sound channel switching program, the stereo audio output is carried out by dynamically obtaining the sound channel output position, the steering along with the vehicle head is realized, the sound sounding space position is unchanged, the real stereo surrounding effect is created, the listening experience of passengers in the vehicle is improved, when the vehicle is offset by 45 degrees relative to the initial calibration direction clockwise, the audio output by the loudspeaker 8 at the original A1 position is switched to the loudspeaker 8 at the original H8 position, the audio output by the loudspeaker 8 at the original B2 position is switched to the loudspeaker 8 at the original A1 position, and the like, the host 1 can be connected with the vehicle navigation in a mode, the left turn and the right turn of the vehicle navigation can send out prompt tones on the left side and right side of the vehicle, when the vehicle is in the corresponding directions, the vehicle is in the east, the west, the north direction and the voice direction is fast in the direction of the vehicle is prevented from being tense, and the driver is prevented from being fast confirmed, and the driver is fast to judge.
Embodiment two:
as shown in fig. 1-2, an embodiment of the present invention provides a vehicle-mounted spatial audio technology, which includes a host 1, a gyroscope 3 is fixedly connected to a middle position of a top of the host 1, an acceleration sensor 2 is fixedly connected to a left side of a top of the host 1, an electronic compass 4 is fixedly connected to a right side of a top of the host 1, the acceleration sensor 2, the gyroscope 3 and the electronic compass 4 are linearly distributed, the acceleration sensor 2, the gyroscope 3 and the electronic compass 4 form a spatial sensing mechanism, a DSP digital signal processor 5 is disposed on a right side of the host 1, a power amplifier 6 is disposed on a right side of the DSP digital signal processor 5, eight frequency dividers 7 are electrically connected to the power amplifier 6, speakers 8 are disposed on one side of the frequency dividers 7, the eight speakers 8 are respectively classified into A1, B2, C3, D4, E5, F6, G7 and H8 according to a clockwise order, wherein the speakers 8 oriented by A1 are used as a basic calibration direction.
The host 1 comprises a sound source and a parameter processor, wherein an audio file is stored in the sound source, the parameter processor is electrically connected with the space sensing mechanism, the parameter processor is electrically connected with the DSP digital signal processor 5, the DSP digital signal processor 5 is electrically connected with the power amplifier 6, the frequency divider 7 is electrically connected with the loudspeaker 8, and an automatic channel switching program is carried in the DSP digital signal processor 5.
When a navigation site is set, the linear direction of a navigation destination can be transmitted in a mode that a vehicle is connected with a host computer 1, the navigation terminal is set as a fixed starting point of a sound field, and the navigation terminal can be maintained in human perception in a mode of hearing and distinguishing the position through any other sound in real time, so that compared with hearing and text description or watching related navigation, the method has the advantages of saving reaction time, directly perceiving, high efficiency and safety;
when the active safety early warning system carried on the vehicle monitors that the rear vehicle approaches at a high speed, the current industry solution is to send out a prompt tone and visually remind a driver at a striking position, and the safety system is connected with the host computer 1, so that the threat azimuth can be processed more accurately, the loudspeaker 8 of the threat azimuth can send out an alarm prompt tone through the device, the sound has a sense of space direction, a driver and a passenger can receive threat information with a direction in the shortest time, the part for visually extracting information and thinking again is omitted, and the meaning of the safety neighborhood which is necessary in the minute is great.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The vehicle-mounted space audio technology comprises a host (1), and is characterized in that: the intelligent control system is characterized in that a gyroscope (3) is fixedly connected to the middle position of the top of the host machine (1), an acceleration sensor (2) is fixedly connected to the left side of the top of the host machine (1), an electronic compass (4) is fixedly connected to the right side of the top of the host machine (1), the acceleration sensor (2), the gyroscope (3) and the electronic compass (4) are distributed in a straight line, the acceleration sensor (2), the gyroscope (3) and the electronic compass (4) form a space sensing mechanism, a DSP digital signal processor (5) is arranged on the right side of the host machine (1), a power amplifier (6) is arranged on the right side of the DSP digital signal processor (5), eight frequency dividers (7) are electrically connected to the power amplifier (6), and speakers (8) are arranged on one side of each frequency divider (7) and are divided into A1, B2, C3, D4, E5, F6, G7 and H8 according to clockwise ordering, wherein the speakers (8) with A1 faces are used as basic calibration directions.
2. The vehicle spatial audio technique according to claim 1, characterized in that: the host (1) comprises a sound source and a parameter processor, wherein an audio file is stored in the sound source, the parameter processor is electrically connected with the space sensing mechanism, the parameter processor is electrically connected with the DSP digital signal processor (5), the DSP digital signal processor (5) is electrically connected with the power amplifier (6), the frequency divider (7) is electrically connected with the loudspeaker (8), and an automatic channel switching program is carried in the DSP digital signal processor (5).
3. The method for using a car audio technology according to claim 1, wherein: the method comprises the following steps:
s1, acquiring a running state of a vehicle
The acceleration sensor (2) can be used for acquiring the acceleration of the vehicle during running, the gyroscope (3) is used for acquiring the running direction of the vehicle, the electronic compass (4) is used for acquiring the positive south direction of the vehicle during running, and the acquired running state information of the vehicle is transmitted to the parameter processor in the host machine (1) for calculation processing to obtain the movement angle and the direction change of the vehicle;
s2, switching sound channels through signal processing
The DSP digital signal processor (5) receives the data calculated by the parameter processor, calculates a channel switching value which keeps a sound field unchanged through automatic channel switching program, changes the output channel identification of the audio in real time, and after the motion angle of the vehicle is correspondingly changed, the output channel of the audio is modified and switched in opposite and same angles;
s3, outputting audio
The DSP digital signal processor (5) outputs the modified audio to the corresponding sound channel in the power amplifier (6), and then transmits the modified audio to the loudspeaker (8) of the corresponding sound channel through the frequency divider (7) to finally output the sound of the optimized position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210199825.5A CN116744214A (en) | 2022-03-01 | 2022-03-01 | Vehicle-mounted space audio technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210199825.5A CN116744214A (en) | 2022-03-01 | 2022-03-01 | Vehicle-mounted space audio technology |
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| Publication Number | Publication Date |
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| CN116744214A true CN116744214A (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210199825.5A Pending CN116744214A (en) | 2022-03-01 | 2022-03-01 | Vehicle-mounted space audio technology |
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| CN (1) | CN116744214A (en) |
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- 2022-03-01 CN CN202210199825.5A patent/CN116744214A/en active Pending
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