CN117354680A - Sound orientation method, system and terminal based on digital sounding chip - Google Patents
Sound orientation method, system and terminal based on digital sounding chip Download PDFInfo
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- CN117354680A CN117354680A CN202311480752.8A CN202311480752A CN117354680A CN 117354680 A CN117354680 A CN 117354680A CN 202311480752 A CN202311480752 A CN 202311480752A CN 117354680 A CN117354680 A CN 117354680A
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- 238000004422 calculation algorithm Methods 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 8
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- 230000006870 function Effects 0.000 description 4
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- 230000009286 beneficial effect Effects 0.000 description 1
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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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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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
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The application relates to a sound orientation method, a sound orientation system and a sound orientation terminal based on a digital sounding chip, and belongs to the technical field of digital sounding; the method is applied to a digital sounding chip; the digital sounding chip comprises a plurality of pixel sounding units; the sound orientation method based on the digital sound chip comprises the steps of obtaining sound audio information and sound azimuth information of target audio; obtaining the vibration amplitude of each pixel sounding unit according to the sounding audio information; adjusting the phase of the pulse signal of each pixel sounding unit according to the sounding azimuth information; and overlapping and reconstructing the pulse sound waves sent by each pixel sounding unit to form target audio. The application has the effect of realizing directional sounding.
Description
Technical Field
The application relates to the technical field of digital sounding, in particular to a sound orientation method, a sound orientation system and a sound orientation terminal based on a digital sounding chip.
Background
A speaker is a transducer device that converts an electrical signal into an acoustic signal; with the development of the age, speakers are applied to various fields as devices for transmitting sound; in the actual life production process, more devices are provided with speakers and sound is produced through the speakers; such as a horn, etc.; however, the sound producing process of the speaker is a divergent propagation sound, which causes problems in some scenes, so how to change the sound producing direction of the speaker is important.
Disclosure of Invention
In order to solve the problems, the application provides a sound orientation method, a sound orientation system and a terminal based on a digital sounding chip.
The first object of the present application is to provide a sound orientation method based on a digital sound chip.
The first object of the present application is achieved by the following technical solutions:
a sound orientation method based on a digital sound chip is applied to the digital sound chip; the digital sounding chip comprises a plurality of pixel sounding units; comprising the following steps:
acquiring sounding audio information and sounding azimuth information of target audio;
obtaining the vibration amplitude of each pixel sounding unit according to the sounding audio information;
adjusting the phase of the pulse signal of each pixel sounding unit according to the sounding azimuth information;
and overlapping and reconstructing the pulse sound waves sent by each pixel sounding unit to form target audio.
In a preferred example, the method may further be configured, wherein the obtaining the vibration amplitude of each of the pixel sounding units according to the sounding audio information includes:
and calculating the vibration amplitude of each pixel sounding unit according to the sounding audio information based on a DSR algorithm.
In a preferred example, the adjusting the phase of the pulse signal of each of the pixel sounding units according to the sounding azimuth information may further include:
obtaining azimuth parameter information according to the sounding azimuth information;
obtaining phase adjustment information of each pixel sounding unit according to the azimuth parameter information;
and adjusting the phase of the pulse signal corresponding to the pixel sounding unit according to the phase adjustment information.
The present application may be further configured in a preferred example to: the method also comprises the step of adjusting the phase of the pulse signal of each pixel sounding unit by using a phase shifting module.
The present application may be further configured in a preferred example to: the azimuth parameter information includes azimuth angle information and distance parameter information.
The present application may be further configured in a preferred example to: the pixel sounding units are arranged according to a preset arrangement rule to form a sounding unit array.
The present application may be further configured in a preferred example to: and when the number of the digital sounding chips is multiple, controlling each pixel sounding unit in the digital sounding chips simultaneously.
The second object of the present application is to provide a sound directing system based on a digital sound chip.
The second object of the present application is achieved by the following technical solutions:
a digital sound chip-based sound directing system, comprising:
the acquisition module is used for acquiring sounding audio information and sounding azimuth information of the target audio;
the calculation module is used for obtaining the vibration amplitude of each pixel sounding unit according to the sounding audio information;
the adjusting module is used for adjusting the phase of the pulse signal of each pixel sounding unit according to the sounding azimuth information;
and the superposition module is used for superposing and reconstructing the pulse sound waves sent by each pixel sounding unit to form target audio.
The third object of the present application is to provide a terminal.
The third object of the present application is achieved by the following technical solutions:
a terminal comprising a memory and a processor, the memory having stored thereon computer program instructions of the above digital sound chip based sound directing method that can be loaded and executed by the processor.
A fourth object of the present application is to provide a computer medium capable of storing a corresponding program.
The fourth object of the present application is achieved by the following technical solutions:
a computer readable storage medium storing a computer program capable of being loaded by a processor and executing any one of the above digital sound chip-based sound directing methods.
In summary, the present application includes at least one of the following beneficial technical effects:
by adopting the technical scheme, sounding audio information and sounding azimuth information of the target audio are acquired; then determining the vibration amplitude corresponding to the vibrating diaphragm of each pixel sounding unit according to sounding audio information; the phase of the pulse signal of each pixel sounding unit is adjusted according to sounding azimuth information; finally, the pulse sound wave emitted by each pixel sounding unit is overlapped and reconstructed to form target audio; by the mode, the generation direction of the sound generating device is adjusted, the sound generating device can generate sound towards the direction where the target audio is located, the sound generating efficiency of the sound generating device is improved, and the noise influence of the sound generating device on the environment in other directions except the target audio is reduced.
Drawings
Fig. 1 is a flow chart of a sound directing method based on a digital sound chip in an embodiment of the application.
Fig. 2 is a schematic diagram of a sound generating device according to an embodiment of the present application, in which the direction of occurrence needs to be adjusted to be above.
Fig. 3 is a schematic diagram of a sound generating device according to an embodiment of the present application, where the direction of occurrence needs to be concentrated to one point.
Fig. 4 is an explanatory diagram of azimuth parameter information in a three-dimensional space coordinate system in the embodiment of the present application.
Fig. 5 is a schematic structural diagram of a sound directing system based on a digital sound chip in an embodiment of the present application.
Reference numerals illustrate: 1. an acquisition module; 2. a computing module; 3. an adjustment module; 4. and a superposition module.
Detailed Description
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and modifications may be made to the embodiment by those skilled in the art without creative contribution as needed after reading the present specification, but are protected by patent laws within the scope of the claims of the present application.
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Embodiments of the present application are described in further detail below with reference to the drawings attached hereto.
The application provides a sound orientation method based on a digital sound chip, and the main flow of the method is described as follows.
The sound orientation method in the embodiment of the application is applied to the digital sound chip; the digital sounding chip comprises a sounding unit array, and each sounding unit array comprises a plurality of pixel sounding units; the pulse sound waves with different sound pressure magnitudes are overlapped and reconstructed into the required audio waveform through changing the vibration amplitude of the vibrating diaphragm of the pixel sounding unit; the superimposed sound waves are deflected or converged to point to the required direction by changing the phase of signals sent by each occurrence pixel unit; by the mode, directional sounding is realized, and sounding efficiency is improved; the following is a detailed description of the present application.
As shown in fig. 1:
step S101: and acquiring sounding audio information and sounding azimuth information of the target audio.
In the embodiment of the present application, the target audio may be set according to an actual requirement or an actual scene requirement, or may be preset; the sounding audio information and sounding azimuth information of the target audio can be determined through the target audio.
Step S102: and obtaining the vibration amplitude of each pixel sounding unit according to the sounding audio information.
Specifically, the vibrating diaphragm state of each pixel sounding unit is obtained; calculating to obtain a target vibration amplitude of each pixel sounding unit according to the sounding audio information based on a DSR algorithm; and adjusting the vibration amplitude of each pixel sounding unit according to the vibration film state and the target vibration amplitude.
It can be understood that after the sounding audio information is obtained, the state of the diaphragm of each pixel sounding unit needs to be determined first; then calculating the vibration amplitude required by each pixel sounding unit according to a digital sound reconstruction algorithm; in the actual sounding process, the vibrating diaphragm of the pixel sounding unit vibrates, so that sound is emitted; therefore, the audio information determines the vibration amplitude of the diaphragm of the pixel sounding unit; after the initial state of the vibrating diaphragm of the pixel sounding unit is determined, the vibrating diaphragm of the pixel sounding unit is adjusted according to the vibration amplitude calculated by the digital reconstruction algorithm.
According to the mode, the vibration amplitude corresponding to the vibrating diaphragm of each pixel sounding unit is calculated according to the digital sound reconstruction algorithm and the audio information, and the purpose that the digital sounding chip sends out target audio is achieved through fine adjustment of the pixel sounding units; by means of the fine tuning mode, sounding efficiency is improved, and sounding work of target audio can be completed when only one digital sounding chip is arranged.
Step S103: and adjusting the phase of the pulse signal of each pixel sounding unit according to the sounding azimuth information.
Referring to fig. 2 and 3, specifically, azimuth parameter information is obtained according to the sounding azimuth information; obtaining phase adjustment information of each pixel sounding unit according to the azimuth parameter information; adjusting the phase of the pulse signal corresponding to the pixel sounding unit according to the phase adjustment information; in the embodiment of the application, the phase of the pulse signal of each pixel sounding unit is adjusted by using the phase shifting module.
Referring to fig. 4, wherein the azimuth parameter information includes azimuth information and distance parameter information; it can be appreciated that after the sounding azimuth information is obtained, azimuth parameter information can be determined according to the sounding azimuth information; the azimuth parameter information refers to a space included angle between the position of the target audio and each pixel sounding unit and a distance between the position of the target audio and each pixel sounding unit compared with each pixel sounding unit; taking a three-dimensional space coordinate system as an example, taking a pixel sounding unit as a center, wherein the space included angle comprises an included angle theta between the position of the target audio and the z axis and also comprises an included angle phi between the position of the target audio and the x axis.
Referring to fig. 2 and 3, it can be understood that there are two cases in the actual sound production process; firstly, the sound direction change adjustment is carried out on the sound generating device, if the sound generating device generates sound downwards, the sound generating direction of the sound generating device is required to be adjusted to be above, and then the space included angle between the position of the target audio and the pixel generating unit is required to be known; the second is to perform centralized sound adjustment on the sound generating device, for example, the sound generating device is a divergent sound generating device, and the sound generating direction of the sound generating device needs to be converged to one point at present; then, at this time, it is necessary to know not only the spatial angle between the position of the target audio and the pixel sounding unit, but also the distance between the position of the target audio and the pixel sounding unit.
In the embodiment of the application, the pixel sounding units are arranged according to a preset arrangement rule to form a sounding unit array; namely, the pixel sounding units are arranged according to a certain rule to form a digital sounding chip; the pixel sounding units can form a one-dimensional linear array, a two-dimensional matrix, an annular array, a fan-shaped array and the like; by the mode, the phase adjustment of the pulse signals of the pixel sounding units can be realized, and further, the sounding direction adjustment of the digital sounding chip is realized; in this way, the sounding capability and sounding applicability of a single digital sounding chip are improved.
It should be noted that when there are a plurality of digital sounding chips, each pixel sounding unit in the digital sounding chip is controlled simultaneously; that is, if a plurality of digital sounding chips exist, all pixel sounding units of the respective digital sounding chips can be called to work together, and in this way, the effects of reducing the main lobe width, eliminating grating lobes and suppressing side lobes can be achieved.
Step S104: and overlapping and reconstructing the pulse sound waves sent by each pixel sounding unit to form target audio.
After the operation of the pixel sounding unit in steps S101-S103, the adjustment of the vibration amplitude of the diaphragm of the pixel sounding unit and the adjustment of the phase of the pulse signal are realized; at this time, after receiving the audio signal, the pixel sounding unit can emit pulse sound waves with different phases and vibration amplitudes, and after the pulse sound waves are overlapped and reconstructed, the target audio for executing the required direction can be formed.
According to the scheme, the phase and vibration amplitude of the pixel sounding unit are adjusted, so that the effect of directionally sounding a single digital sounding chip is achieved; by adopting the mode, the adjustment of each pixel sounding unit in the single digital sounding chip is realized, so that the directional sounding effect can be achieved through the single digital sounding chip; therefore, the directional sound production device does not need to use the digital sound production chip array structure, and directional sound production can be realized only by a single digital sound production chip, so that the volume of the directional sound production device is greatly reduced, and the cost of the directional sound production device is saved.
The application also provides a sound orientation system based on the digital sound chip, as shown in fig. 5, the sound orientation system based on the digital sound chip comprises an acquisition module 1, a sound generation module and a sound generation module, wherein the acquisition module is used for acquiring sound generation audio information and sound generation azimuth information of target audio; the calculation module 2 is used for obtaining the vibration amplitude of each pixel sounding unit according to the sounding audio information; an adjusting module 3, configured to adjust a phase of a pulse signal of each of the pixel sounding units according to the sounding azimuth information; and the superposition module 4 is used for superposing and reconstructing the pulse sound waves sent by each pixel sounding unit to form target audio.
In order to better execute the program of the method, the application also provides a terminal, which comprises a memory and a processor.
Wherein the memory may be used to store instructions, programs, code, sets of codes, or sets of instructions. The memory may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function, instructions for implementing the above-described digital sound chip-based sound directing method, and the like; the storage data area may store data and the like involved in the above-described digital sound chip-based sound directing method.
The processor may include one or more processing cores. The processor performs the various functions of the present application and processes the data by executing or executing instructions, programs, code sets, or instruction sets stored in memory, calling data stored in memory. The processor may be at least one of an application specific integrated circuit, a digital signal processor, a digital signal processing device, a programmable logic device, a field programmable gate array, a central processing unit, a controller, a microcontroller, and a microprocessor. It will be appreciated that the electronic device for implementing the above-mentioned processor function may be other for different apparatuses, and embodiments of the present application are not specifically limited.
The present application also provides a computer-readable storage medium, for example, comprising: a usb disk, a removable hard disk, a read-only memory (Read On l y Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or the like, which can store program codes. The computer readable storage medium stores a computer program that can be loaded by a processor and that performs the above-described digital sound chip-based sound directing method.
The above description is only illustrative of the presently preferred embodiments and the principles of the technology being employed. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the disclosure. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (10)
1. A sound orientation method based on a digital sound chip is applied to the digital sound chip; the digital sounding chip comprises a plurality of pixel sounding units; characterized by comprising the following steps:
acquiring sounding audio information and sounding azimuth information of target audio;
obtaining the vibration amplitude of each pixel sounding unit according to the sounding audio information;
adjusting the phase of the pulse signal of each pixel sounding unit according to the sounding azimuth information;
and overlapping and reconstructing the pulse sound waves sent by each pixel sounding unit to form target audio.
2. The digital sound chip-based sound directing method of claim 1, wherein said deriving a vibration amplitude for each of said pixel sound emitting units from said sound emitting audio information comprises: and calculating the vibration amplitude of each pixel sounding unit according to the sounding audio information based on a DSR algorithm.
3. The digital sound chip-based sound directing method of claim 1, wherein said adjusting the phase of the pulse signal of each of the pixel sound emitting units according to the sound emitting azimuth information comprises:
obtaining azimuth parameter information according to the sounding azimuth information;
obtaining phase adjustment information of each pixel sounding unit according to the azimuth parameter information;
and adjusting the phase of the pulse signal corresponding to the pixel sounding unit according to the phase adjustment information.
4. The digital sounding chip based sound directing method of claim 3, further comprising adjusting a phase of the pulse signal of each of the pixel sounding units using a phase shifting module.
5. The digital sound chip-based sound directing method of claim 1, wherein the azimuth parameter information includes azimuth angle information and distance parameter information.
6. The sound directing method based on digital sound chips as defined in claim 1, wherein said pixel sound units are arranged according to a predetermined arrangement rule to form a sound unit array; the digital sounding chip comprises a sounding unit array.
7. The digital sound chip-based sound directing method of claim 1, further comprising controlling each pixel sound generating unit in the digital sound chip simultaneously when there are a plurality of the digital sound chips.
8. A sound directing system based on a digital sound chip, comprising:
the acquisition module is used for acquiring sounding audio information and sounding azimuth information of the target audio;
the calculation module is used for obtaining the vibration amplitude of each pixel sounding unit according to the sounding audio information;
the adjusting module is used for adjusting the phase of the pulse signal of each pixel sounding unit according to the sounding azimuth information;
and the superposition module is used for superposing and reconstructing the pulse sound waves sent by each pixel sounding unit to form target audio.
9. A terminal comprising a memory and a processor, the memory having stored thereon computer program instructions capable of being loaded by the processor and performing the method according to any of claims 1-7.
10. A computer readable storage medium, characterized in that a computer program is stored which can be loaded by a processor and which performs the method according to any of claims 1-7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311480752.8A CN117354680A (en) | 2023-11-08 | 2023-11-08 | Sound orientation method, system and terminal based on digital sounding chip |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311480752.8A CN117354680A (en) | 2023-11-08 | 2023-11-08 | Sound orientation method, system and terminal based on digital sounding chip |
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| CN116719407A (en) * | 2023-05-25 | 2023-09-08 | 地球山(苏州)微电子科技有限公司 | Gesture recognition method and device based on digital sounding chip |
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| US20170289722A1 (en) * | 2016-04-04 | 2017-10-05 | Pixie Dust Technologies, Inc. | System and method for generating spatial sound using ultrasound |
| CN111246341A (en) * | 2018-11-28 | 2020-06-05 | 哈曼国际工业有限公司 | Wearable beamforming speaker array |
| CN115022786A (en) * | 2022-05-27 | 2022-09-06 | 地球山(苏州)微电子科技有限公司 | Flat panel speaker based on digital sound production chip |
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