CN213638184U - Directional sound self-adaptive adjusting device - Google Patents
Directional sound self-adaptive adjusting device Download PDFInfo
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- CN213638184U CN213638184U CN202022551305.5U CN202022551305U CN213638184U CN 213638184 U CN213638184 U CN 213638184U CN 202022551305 U CN202022551305 U CN 202022551305U CN 213638184 U CN213638184 U CN 213638184U
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Abstract
The utility model provides a directional sound self-adaptation adjusting device, include: the system comprises a sound source management module and an environment sound management module, wherein the output end of the sound source manager is connected with the input end of the environment management module, and the environment sound management module receives a sound source to be played output by the sound source manager and filters collected environment sound according to the sound source to be played; the processor is respectively connected with the output end of the environment sound management module and the output end of the sound source manager; the processor module controls the sound pressure level of the played sound according to the sound source to be played and the output of the environment management module; the input end of the directional play module is connected with the output end of the processor module; the utility model discloses can effectively improve the adaptability to ambient noise, be favorable to strengthening user experience.
Description
Technical Field
The utility model relates to a speech processing field especially relates to a directional sound self-adaptation adjusting device.
Background
The ultrasonic directional playing device is a sound device developed for reducing active noise as much as possible, and the device reduces sound pollution in a range where sound is not required to be transmitted as much as possible, so that the sound does not interfere with others, and the sound becomes very easy to control. In order to control such sound equipment more accurately and reduce sound pollution as much as possible, it is desirable to have a function of accurately controlling the sound pressure level, and the intensity (volume) of the sound pressure level can be automatically adjusted according to the level of the environmental noise, so that the sound can be served in an audible range better without affecting the sound environment outside the audible range, and further, the propagation of active noise can be controlled more accurately and scientifically, so that the listening is more comfortable and intelligent.
For example, noises of airplanes, automobiles, subways and high-speed rails are passive noises, and as long as the volume of directional sound equipment is higher than that of environmental noises, sound can be heard clearly, but how the environmental noises change along with the change of the passive noises to adapt to the noise change in the environment becomes a great difficult problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
In view of the problem that prior art exists above, the utility model provides a directional sound self-adaptation adjusting device mainly solves the problem that environmental noise disturbed and reduced sound quality.
In order to achieve the above and other objects, the present invention adopts the following technical solutions.
A directional sound adaptive adjustment apparatus comprising:
a sound source management module for managing the sound source,
the output end of the sound source management module is connected with the input end of the environment management module, and the environment sound management module receives a sound source to be played output by the sound source management module and filters collected environment sound according to the sound source to be played;
the processing module is respectively connected with the output end of the environment sound management module and the output end of the sound source management module; the processing module controls the sound pressure level of the played sound according to the sound source to be played and the output of the environment management module;
and the input end of the directional playing module is connected with the output end of the processing module.
Optionally, the environmental sound management module includes: the sound collection device comprises a sound collection unit and a filtering unit, wherein the output end of the sound collection unit is connected with the input end of the filtering unit; the output end of the sound source management module is connected with the input end of the filtering unit; and the output end of the filtering unit is connected with the input end of the processing module.
Optionally, the sound collection unit includes a directional sound collector and a non-directional sound collector, and output ends of the directional sound collector and the non-directional sound collector are respectively connected to the filtering unit.
Optionally, the filtering unit includes a first filter and a second filter, and an input end of the first filter is connected to an output end of the non-directional sound collector; the input end of the second filter is connected with the output end of the directional sound collector; and the output end of the first filter and the output end of the second filter are respectively connected with the input end of the processing module.
Optionally, the processing module comprises a sound pressure calculation unit and a sound pressure adjustment unit; the sound pressure calculation unit is respectively connected with the output ends of the first filter and the second filter; the output end of the sound pressure calculation unit is connected with the input end of the sound pressure adjusting unit, and the output end of the sound pressure adjusting unit is connected with the input end of the directional playing module; and the output end of the sound source management module is connected with the input end of the sound pressure adjusting unit.
Optionally, the sound pressure calculation unit includes a first sound pressure calculator and a second sound pressure calculator, and an input end of the first sound pressure calculator is connected to an output end of the first filter; the input end of the second sound pressure calculator is connected with the output end of the second filter; and the output ends of the first sound pressure calculator and the second sound pressure calculator are respectively connected with the input end of the sound pressure adjusting unit.
Optionally, the sound pressure adjusting device further comprises a threshold setting unit, and an output end of the threshold setting unit is connected with an input end of the sound pressure adjusting unit.
Optionally, the directional playing module adopts a directional speaker.
As described above, the utility model relates to a directional sound self-adaptation adjusting device has following beneficial effect.
The environment noise is collected and combined with the sound source sound pressure, the output sound pressure level of the directional sound can be adjusted in real time, and the listening quality of a user is improved.
Drawings
Fig. 1 is a block diagram of the directional sound adaptive adjusting apparatus of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
Referring to fig. 1, the present invention provides a directional sound adaptive adjustment device, which includes a sound source management module 01, an environmental sound management module, a processing module and a directional playing module 09.
In an embodiment, the output end of the sound source management module 01 is respectively connected with the input end of the environmental sound management module and the input end of the processing module; the output end of the environment sound management module is connected with the input end of the processing module, and the output end of the processing module is connected with the input end of the directional playing module 09.
In an embodiment, the sound source management module 01 may include a memory storing a preset audio, and when the specified sound source information needs to be played, the corresponding audio information is read from the memory and output. In another embodiment, the sound source management module may include an audio input interface (e.g., a digital interface or an analog interface such as an AUX interface, a USB interface, an IIS interface, etc.), and the audio input interface is connected to a device such as a mobile phone and a microphone to obtain a real-time playing sound source.
In one embodiment, the environmental sound management module includes a sound collection unit and a filtering unit, and the sound collection unit is configured to collect noise of an external environment and output the noise to the filtering unit. The input end of the filtering unit is also connected with the output end of the sound source management module, and the filtering unit filters external environment noise according to the sound pressure level of the current input sound source. If the sound pressure level of the input sound source is used as a reference, the filtering range is set, the noise with too low noise sound pressure is removed, and the calculation amount is reduced.
In an embodiment, the sound collection unit may comprise a directional sound collector 03 and a non-directional sound collector 02. Ultrasonic directional sound fed back from the sound output direction of the directional player can be acquired through the directional sound collector 03; the environmental noise in other directions is acquired by the non-directional sound collectors 02, and the non-directional sound collectors 02 may be distributed at different positions in the circumferential direction of the device. Both the directional sound collector 02 and the non-directional sound collector 03 can adopt commercially available sound collectors, such as TS 806A.
Further, the filtering unit may include a first filter 04 and a second filter 05, where the first filter 04 performs filtering processing on the non-directional environmental noise, and the second filter 05 performs filtering processing on the directional environmental noise, and respectively outputs the filtered signals to the processing module. The filtering functions of the first filter 04 and the second filter 05 in this embodiment can be realized by common filtering devices in the market, and the filters can be selected according to the actual application requirements, which is not limited here.
In one embodiment, the processing module may employ a CPU, an MCU, a single chip, a programmable gate array, or other processors.
Further, the processing module may be divided into a plurality of units, and the sound pressure level calculation may be performed on the filtered signals respectively. In an embodiment, the processing module may include a sound pressure calculation unit, which may be further divided into a first sound pressure calculator 06 and a second sound pressure calculator 07, and a sound pressure adjustment unit 08. The input end of the first sound pressure calculator 06 is connected to the output end of the first filter 04, and the mean value of the sound pressures of the non-directional environmental noise in the sampling period is calculated in the prior art, which is not described herein again. The input end of the second sound pressure calculator 07 is connected to the output end of the second filter 05, and the sound pressure average value of the directional environmental noise in the sampling period is calculated. The output ends of the first sound pressure calculator 06 and the second sound pressure calculator 07 are respectively connected to a sound pressure adjusting unit 08.
In an embodiment, the sound pressure adjusting unit 08 may be connected to a threshold setting unit, and set respective weights of the directional ambient noise sound pressure mean value and the non-directional ambient noise sound pressure mean value through the threshold setting unit, and the sound pressure adjusting unit 08 performs weighting processing according to the weights, and estimates the overall sound pressure level of the external ambient noise according to the weighting processing result. The threshold setting unit can adopt any device capable of realizing data input, such as a terminal touch display screen, a digital button and other input equipment. The averaging and weighting calculation can be implemented by using the computing power of the processor itself, and the specific calculation method is the prior art, which is not described herein again, and the calculation process should not be considered as a limitation to this embodiment.
The input end of the sound pressure adjusting unit 08 is connected with the output end of the sound source management module 01, the sound pressure adjusting unit 08 compares the sound pressure level of the currently input sound source with the noise sound pressure level obtained after weighting processing, when the sound pressure level of the sound source is higher than the noise sound pressure level, adjustment is not needed, when the sound pressure level of the sound source is lower than the noise sound pressure level, the sound pressure level of the sound source is enhanced, and the sound pressure level of output sound is always guaranteed to be larger than the noise sound pressure level. Specifically, a comparison function may be realized by using a circuit device such as a comparator. And the audio source signal enhancement is realized by adopting electric devices such as an amplifier and the like. The comparator and the amplifier are conventional existing devices, and can be selected according to the requirements of practical application scenes, and are not described herein again.
In an embodiment, the directional playing module 09 may adopt a directional speaker, and implement directional transmission of the sound source by carrying the sound source with ultrasonic waves.
To sum up, the utility model relates to a directional sound self-adaptive adjusting device, which respectively processes directional noise and non-directional noise to obtain noise sound pressure, and can effectively improve the sound pressure adjusting accuracy of output sound; the threshold setting of sound pressure regulation can be adjusted according to different application scenes, so that the environmental adaptability is enhanced; the processing efficiency can be accelerated by combining the sound source to carry out noise filtering; the sound pressure level of the output sound is adjusted in real time, and the user experience is effectively enhanced. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A directional sound adaptive adjustment apparatus, comprising:
a sound source management module for managing the sound source,
the output end of the sound source management module is connected with the input end of the environment sound management module, and the environment sound management module receives a sound source to be played output by the sound source management module and filters collected environment sound according to the sound source to be played;
the processing module is respectively connected with the output end of the environment sound management module and the output end of the sound source management module; the processing module controls the sound pressure level of the played sound according to the sound source to be played and the output of the environmental sound management module;
and the input end of the directional playing module is connected with the output end of the processing module.
2. The adaptive directional sound adjuster according to claim 1, wherein the ambient sound management module comprises: the sound collection device comprises a sound collection unit and a filtering unit, wherein the output end of the sound collection unit is connected with the input end of the filtering unit; the output end of the sound source management module is connected with the input end of the filtering unit; and the output end of the filtering unit is connected with the input end of the processing module.
3. The adaptive directional sound regulation device according to claim 2, wherein the sound collection unit comprises a directional sound collector and a non-directional sound collector, and output ends of the directional sound collector and the non-directional sound collector are respectively connected to the filtering unit.
4. The adaptive directional sound regulation device according to claim 3, wherein the filtering unit comprises a first filter and a second filter, and an input end of the first filter is connected with an output end of the non-directional sound collector; the input end of the second filter is connected with the output end of the directional sound collector; and the output end of the first filter and the output end of the second filter are respectively connected with the input end of the processing module.
5. The adaptive directional sound adjustment device according to claim 4, wherein the processing module comprises a sound pressure calculation unit and a sound pressure adjustment unit; the sound pressure calculation unit is respectively connected with the output ends of the first filter and the second filter; the output end of the sound pressure calculation unit is connected with the input end of the sound pressure adjusting unit, and the output end of the sound pressure adjusting unit is connected with the input end of the directional playing module; and the output end of the sound source management module is connected with the input end of the sound pressure adjusting unit.
6. The adaptive directional sound adjuster according to claim 5, wherein the sound pressure calculator comprises a first sound pressure calculator and a second sound pressure calculator, and an input end of the first sound pressure calculator is connected to an output end of the first filter; the input end of the second sound pressure calculator is connected with the output end of the second filter; and the output ends of the first sound pressure calculator and the second sound pressure calculator are respectively connected with the input end of the sound pressure adjusting unit.
7. The adaptive directional sound adjuster according to claim 5, further comprising a threshold setting unit, wherein an output of the threshold setting unit is connected to an input of the sound pressure adjuster.
8. The adaptive directional sound adjuster according to claim 1, wherein the directional playing module employs a directional speaker.
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| CN202022551305.5U CN213638184U (en) | 2020-11-06 | 2020-11-06 | Directional sound self-adaptive adjusting device |
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| CN202022551305.5U CN213638184U (en) | 2020-11-06 | 2020-11-06 | Directional sound self-adaptive adjusting device |
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Effective date of registration: 20220824 Address after: Room 6-39, 6th Floor, Building 6, Phase 3, R&D Building, Building 2, No. 36, Xiyong Avenue, High-tech Zone, Shapingba District, Chongqing 401332 Patentee after: CHONGQING QINGWEN TECHNOLOGY Co.,Ltd. Address before: Room b210, standard workshop auxiliary room, Jinyang science and Technology Industrial Park, Guiyang National High tech Industrial Development Zone, Guiyang City, Guizhou Province Patentee before: Guiyang qingwenyun Technology Co.,Ltd. |