阅读说明：本技术 发声装置及其控制方法、以及控制装置 (Sound production device, control method thereof, and control device ) 是由 郭在康 丁贝贝 张重 于 2021-09-29 设计创作，主要内容包括：本发明公开一种发声装置及其控制方法、以及控制装置,根据与环境噪声相关的相关参数,控制两个发声单体工作,使得所述两个发声单体的出声孔的相位相同或者相反,在环境噪声较大时,控制所述两个发声单体工作,使得所述两个发声单体的出声孔的相位相同,而使得两个所述发声单体发出的声音有相互增强的效果,当环境噪声较小时,控制所述两个发声单体工作,使得所述两个发声单体的出声孔的相位相反,使得所述两个发声单体产生的声音会相互抵消的作用,减少对环境的影响,为此,本发明提供的发声装置能够在不同的噪声环境下使用。(The invention discloses a sound production device, a control method and a control device thereof, wherein two sound production units are controlled to work according to related parameters related to environmental noise, so that the phases of sound holes of the two sound production units are the same or opposite, when the environmental noise is large, the two sound production units are controlled to work, so that the phases of the sound holes of the two sound production units are the same, the sound produced by the two sound production units has an effect of mutual enhancement, when the environmental noise is small, the two sound production units are controlled to work, so that the phases of the sound holes of the two sound production units are opposite, the sound produced by the two sound production units can be mutually counteracted, and the influence on the environment is reduced.)

1. The control method of the sound production device is characterized in that the sound production device comprises a shell, two sound production units and a control device, wherein the two sound production units and the control device are arranged in the shell, two front cavities and two rear cavities are formed in the shell at intervals, two sound production holes communicated with the two front cavities are formed in the shell, the control device is electrically connected with the two sound production units, and the control method of the sound production device comprises the following steps:

acquiring relevant parameters related to environmental noise;

and controlling the two sounding monomers to work according to the related parameters, so that the phases of the sounding holes of the two sounding monomers are the same or opposite.

2. The method of controlling a sound generating apparatus according to claim 1, wherein the relevant parameter includes a user-set volume value;

controlling the two sounding monomers to work according to the related parameters, so that the phases of the sounding holes of the two sounding monomers are the same or opposite, and the method comprises the following steps:

when the volume value set by the user is larger than the preset volume value, controlling the two sounding monomers to work, so that the phases of the sounding holes of the two sounding monomers are the same; alternatively, the first and second electrodes may be,

when the volume value set by the user is smaller than or equal to the preset volume value, the two sounding monomers are controlled to work, so that the phases of the sounding holes of the two sounding monomers are opposite.

3. The method of controlling a sound emitting device according to claim 1, wherein the relevant parameter includes an ambient noise value;

controlling the two sounding monomers to work according to the related parameters, so that the phases of the sounding holes of the two sounding monomers are the same or opposite, and the method comprises the following steps:

when the environmental noise value is larger than a preset noise value, controlling the two sounding monomers to work, so that the phases of the sounding holes of the two sounding monomers are the same; alternatively, the first and second electrodes may be,

when the environmental noise value is smaller than or equal to the preset noise value, the two sounding monomers are controlled to work, so that the phases of the sounding holes of the two sounding monomers are opposite.

4. A control device characterized by comprising a memory, a processor, and a control program of a sound emission device stored in the memory, the processor executing the control program of the sound emission device to realize the steps of the control method of the sound emission device according to any one of claims 1 to 3.

5. A sound generating device, comprising:

the sound-producing device comprises a shell, wherein two sound-producing single bodies are arranged in the shell, the two sound-producing single bodies form two front cavities and two rear cavities at intervals in the shell, and two sound holes communicated with the two front cavities are formed in the shell; and the number of the first and second groups,

a control device electrically connected to the two sounding units, wherein the control device is the control device of claim 4.

6. The sound generating apparatus of claim 5, further comprising a sound pickup device for picking up ambient noise, the sound pickup device being electrically connected to the control device.

7. The sound generating apparatus of claim 5, wherein said two rear chambers are arranged in communication.

8. The sound generating apparatus of claim 7 wherein said housing further defines sound vents in a wall of said back volume.

9. The sound generating apparatus according to claim 5 or 7, wherein the two sound generating units are stacked in the housing along a dimension of the housing.

10. The sound generating device of claim 5, wherein the sound generating device is AR eyewear.

Technical Field

The invention relates to the technical field of sound generating devices, in particular to a sound generating device, a control method and a control device thereof.

Background

The sound production device takes an AR (Augmented Reality) product as an example, in recent years, the AR product is advocated, an external playing mode is generally adopted, in order to pursue a light AR design and enable a user to wear the sound production device comfortably, the size of a horn used by the AR product is small, the design size of a horn sound cavity is limited, the signal-to-noise ratio of the horn of the AR product is low, and the user cannot use the sound production device in an outdoor high-noise environment.

Disclosure of Invention

The invention mainly aims to provide a sound generating device, a control method thereof and a control device, and aims to enable the sound generating device to be used in different noise environments.

In order to achieve the above object, the present invention provides a control method of a sound generating device, where the sound generating device includes a casing, two sound generating units arranged in the casing, and a control device, where the two sound generating units form two front cavities and two rear cavities at an interval in the casing, two sound outlets communicating the two front cavities are formed in the casing, the control device is electrically connected to the two sound generating units, and the control method of the sound generating device includes the following steps:

acquiring relevant parameters related to environmental noise;

and controlling the two sounding monomers to work according to the related parameters, so that the phases of the sounding holes of the two sounding monomers are the same or opposite.

Optionally, the relevant parameter comprises a user-set volume value;

controlling the two sounding monomers to work according to the related parameters, so that the phases of the sounding holes of the two sounding monomers are the same or opposite, and the method comprises the following steps:

when the volume value set by the user is larger than the preset volume value, controlling the two sounding monomers to work, so that the phases of the sounding holes of the two sounding monomers are the same; alternatively, the first and second electrodes may be,

when the volume value set by the user is smaller than or equal to the preset volume value, the two sounding monomers are controlled to work, so that the phases of the sounding holes of the two sounding monomers are opposite.

Optionally, the correlation parameter comprises an ambient noise value;

controlling the two sounding monomers to work according to the related parameters, so that the phases of the sounding holes of the two sounding monomers are the same or opposite, and the method comprises the following steps:

when the environmental noise value is larger than a preset noise value, controlling the two sounding monomers to work, so that the phases of the sounding holes of the two sounding monomers are the same; alternatively, the first and second electrodes may be,

when the environmental noise value is smaller than or equal to the preset noise value, the two sounding monomers are controlled to work, so that the phases of the sounding holes of the two sounding monomers are opposite.

The invention also provides a control device, which comprises a memory, a processor and a control program of the sound generating device stored in the memory, wherein the processor executes the control program of the sound generating device to realize the steps of the control method of the sound generating device.

The present invention further provides a sound generating apparatus comprising:

the sound-producing device comprises a shell, wherein two sound-producing single bodies are arranged in the shell, the two sound-producing single bodies form two front cavities and two rear cavities at intervals in the shell, and two sound holes communicated with the two front cavities are formed in the shell; and the number of the first and second groups,

and the control device is electrically connected with the two sounding monomers and is the control device.

Optionally, the sound generating device further comprises a sound pickup device for picking up ambient noise, and the sound pickup device is electrically connected to the control device.

Optionally, the two rear cavities are arranged in communication.

Optionally, the housing is further provided with a sound vent on a cavity wall of the rear cavity.

Optionally, the two sounding single bodies are stacked in the casing along a dimension direction of the casing.

Optionally, the sound emitting device is AR glasses.

According to the technical scheme provided by the invention, two sounding monomers are controlled to work according to related parameters related to environmental noise, so that the phases of the sounding holes of the two sounding monomers are the same or opposite, when the environmental noise is high, the two sounding monomers are controlled to work, so that the phases of the sounding holes of the two sounding monomers are the same, the sounds emitted by the two sounding monomers have a mutual enhancement effect, when the environmental noise is low, the two sounding monomers are controlled to work, so that the phases of the sounding holes of the two sounding monomers are opposite, the sounds generated by the two sounding monomers can be mutually offset, and the influence on the environment is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a sound generating device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the sound generator of FIG. 1;

FIG. 3 is a perspective view of FIG. 2 from another perspective;

fig. 4 is a partial schematic structural view of another embodiment of the sound generating device provided by the present invention;

fig. 5 is a schematic flowchart of a control method of a sound generating device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of the frequency response curve of the embodiment of fig. 5 before and after adjustment.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a sound generating device which can be but not limited to AR glasses, obviously, the sound generating device can also be a VR product, a smart phone and the like, and obviously, the design does not limit the specific type of the sound generating device.

Fig. 1 to 4 show an embodiment of the sound generating apparatus provided by the present invention, please refer to fig. 1 to 3, in which the sound generating apparatus 100 includes a casing 1, two sound generating units 2 disposed in the casing 1, and a control device, the two sound generating units 2 form two front cavities 3 and two rear cavities 4 at intervals in the casing 1, two sound outlet holes 11 communicating the two front cavities 3 are formed in the casing 1, and the control device is electrically connected to the two sound generating units 2. Taking the AR glasses as an example, the casing 1 is a casing 1 of a temple of the AR glasses, and the two sounding monomers 2 are disposed on the temple of the AR glasses.

In the technical scheme provided by the invention, the two sounding monomers 2 are controlled to work according to related parameters related to environmental noise, so that the phases of the sound holes 11 of the two sounding monomers 2 are the same or opposite, when the environmental noise is high, the two sounding monomers 2 are controlled to work, so that the phases of the sound holes 11 of the two sounding monomers 2 are the same, and the sounds generated by the two sounding monomers 2 have an effect of mutual enhancement, when the environmental noise is low, the two sounding monomers 2 are controlled to work, so that the phases of the sound holes 11 of the two sounding monomers 2 are opposite, so that the sounds generated by the two sounding monomers 2 can be mutually counteracted, and the influence on the environment is reduced.

The control device is electrically connected to the driving device, and it should be noted that the control device may be an independent device, for example, a device belonging to a part of a smart phone, that is, belonging to a foreign object with respect to the sound generating device 100, or belonging to a part of the sound generating device 100, in this embodiment, the control device belongs to a part of the sound generating device 100, the control device includes a memory, a processor, and a control program of the sound generating device 100 stored in the memory, and the processor executes the control program of the sound generating device 100 to implement a control method of the sound generating device 100 as described below.

Fig. 5 shows an embodiment of a control method of the sound generating device 100 according to the present invention, and referring to fig. 5, the control method of the sound generating device 100 includes:

step S10, acquiring relevant parameters related to the environmental noise; the related parameter may be an ambient noise value, or may be other values capable of reflecting the ambient noise value, or may be related parameters directly related to the ambient noise value, such as a user-set volume value described later;

step S20, controlling the two sounding monomers 2 to work according to the related parameters, so that the phases of the sounding holes 11 of the two sounding monomers 2 are the same or opposite;

when the environmental noise is large, the two sounding monomers 2 are controlled to work, so that the phases of the sounding holes 11 of the two sounding monomers 2 are the same, the sounds emitted by the two sounding monomers 2 have an effect of mutual enhancement, when the environmental noise is small, the two sounding monomers 2 are controlled to work, so that the phases of the sounding holes 11 of the two sounding monomers 2 are opposite, the sounds generated by the two sounding monomers 2 can be mutually offset, and the influence on the environment is reduced.

Further, in the embodiment of the present invention, the related parameters include a user-set volume value, because generally speaking, when the environmental noise is larger, it is obvious that the user will adjust the user-set volume value to be larger, and conversely, when the environmental noise is smaller, the user will adjust the user-set volume value to be smaller, that is, the user-set volume value and the environmental noise value have a direct correlation or are understood to be a positive correlation, step S20 includes:

step S21, when the volume value set by the user is greater than the preset volume value, controlling the two sound generating units 2 to work, so that the phases of the sound outlets 11 of the two sound generating units 2 are the same, that is, when the environmental noise value is large, in order to enable the user to clearly hear the sound generated by the generating device, the phases of the sound outlets 11 of the two sound generating units 2 need to be the same, so as to enhance the sound effect; alternatively, the first and second electrodes may be,

step S22, when the volume value set by the user is less than or equal to the preset volume value, controlling the two sound generating units 2 to work, so that the phases of the sound outlets 11 of the two sound generating units 2 are opposite, that is, when the environmental noise value is small, in order to avoid the influence of the generating device on the surrounding environment, the phases of the sound outlets 11 of the two sound generating units 2 need to be opposite, so as to cancel the sound effect.

Therefore, in this embodiment, it is not necessary to additionally provide another structure to obtain the ambient noise value, but the volume value is set by the user to reflect the ambient noise value, so that the sound generating apparatus 100 can be simpler in structure.

The above example is described in further detail below using the AR product, wherein the two sound producing monomers 2 are spk1 and spk 2:

in the process of using the AR product by a user, the user can adjust the volume in different use environments according to the user's own requirements, the volume is generally set to 15 steps, the volume threshold is set to n steps in advance according to the sensitivity of the product, for example, 11 steps, and when the volume is set to n steps, the product works under the rated power. Calling a volume configuration file through software, acquiring that the volume order currently set by a user is a v order, when v is not more than n, the spk1 is opposite to the spk2 in phase, and can perform far-field noise elimination, and when v is not more than n, the loudspeaker works under rated power; when v > n, the near field sensitivity is improved by the DSP inverting the phases of spk1 and spk 2.

In an embodiment of the present invention, the sound generating device 100 further includes a sound pickup device for picking up environmental noise, and the sound pickup device is electrically connected to the control device;

the correlation parameter includes an ambient noise value, and step S20 includes:

step S22, when the environmental noise value is larger than the preset noise value, controlling the two sounding monomers 2 to work, so that the phases of the sounding holes 11 of the two sounding monomers 2 are the same; alternatively, the first and second electrodes may be,

and step S23, when the environmental noise value is less than or equal to the preset noise value, controlling the two sounding single bodies 2 to work, so that the phases of the sounding holes 11 of the two sounding single bodies 2 are opposite.

In this embodiment, the two sounding units 2 are directly controlled to work according to the environmental noise, so that the control accuracy is higher.

In the embodiment of the present invention, the two rear cavities 4 are communicated with each other, so that the rear cavities 4 of the two sound-generating units 2 can counteract vibration mutually, and more specifically, the housing 1 is further provided with a sound vent on a cavity wall of one of the rear cavities 4, that is, the function of sharing the sound vent can be realized.

In an embodiment of the present invention, referring to fig. 3 and fig. 4, the two sound generating units 2 are stacked in the housing 1 along a dimension direction of the housing 1, for example, the two sound generating units 2 may be stacked along a length direction of the housing 1, may be stacked along a height direction of the housing 1, and may be stacked along a thickness direction of the housing 1.

Taking a square horn with the size of 12x6x2mm as an example, two horns are placed horizontally, a front cavity 3 is separated, a sound outlet 11 is set below each horn, a rear cavity 4 is shared, the volume of the rear cavity 4 is 0.5cc, the two horns are connected in reverse, the phases are opposite, when the volume v is n order, the horn operates under the rated power, as shown in fig. 6, the frequency response curve is curve 1, when the volume is detected to be more than n order, the phase of one horn is inverted by a Control device, so that the two horns are in the same phase, at the same time, a second set of digital audio parameters including EQ (equalizer) and DRC (Dynamic Range Control, which provides compression and amplification capabilities) is called, the high frequency and the low frequency are properly compensated to achieve the best possible audio effect, and the gain is readjusted so that it operates under the rated power at the maximum volume, as shown in fig. 6, the frequency response curve is shown by solid line 2, the sensitivity is improved between 400 plus 6000Hz, the improvement at 1000Hz can be as high as 15dB, different products use different loudspeaker and audio cavity designs, the frequency response curve and the improvement of the signal to noise ratio are different, the audio cavity can be adjusted according to the product design, and different DSP audio parameters are configured, so that the product is more suitable for the high-noise environment.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and include instructions for enabling a terminal device (such as a mobile phone, a computer, a server, a television, or a network device) to execute the methods according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.