CN111935575B

CN111935575B - Sound playing structure, sound playing method and head-mounted display device

Info

Publication number: CN111935575B
Application number: CN202011082513.3A
Authority: CN
Inventors: 张利红; 姜滨; 迟小羽
Original assignee: Goertek Optical Technology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-02-05
Anticipated expiration: 2040-10-12
Also published as: CN111935575A

Abstract

The invention discloses a sound playing structure, a sound playing method and a head-mounted display device, wherein the sound playing structure comprises: the loudspeaker comprises a support part, an adjusting component and a loudspeaker, wherein the support part is provided with a containing groove; the adjusting component is arranged in the accommodating groove; the loudspeaker is connected to the adjusting component, and the adjusting component drives the loudspeaker to move so as to adjust the position of the loudspeaker relative to the supporting piece. According to the technical scheme, when the ear-pressing type earphone is worn and used by a user for a long time, the ear-pressing type earphone can effectively reduce the pressure and discomfort brought to the ears of the user.

Description

Sound playing structure, sound playing method and head-mounted display device

Technical Field

The present invention relates to the field of sound playing technologies, and in particular, to a sound playing structure, a sound playing method, and a head-mounted display device.

Background

The head-mounted display device is an electronic product capable of providing the user with the experience of being personally on the scene, the loudspeaker is arranged in the head-mounted display device, and when the user uses the head-mounted display device, the user can hear the sound from the head-mounted display device through the loudspeaker. The position of wearing display device's speaker to press close to people's ear, when the user wears the use head-mounted display device for a long time, user's ear can feel oppression and uncomfortable.

Disclosure of Invention

Therefore, for the problems that the existing speaker is arranged close to the ear of the user, and the ear of the user is easily stressed and uncomfortable when the user wears the speaker for a long time, it is necessary to provide a sound playing structure, a sound playing method and a head-mounted display device, which aim to effectively reduce the stress and discomfort brought to the ear of the user when the user wears the speaker for a long time.

In order to achieve the above object, the present invention provides a sound playing structure, which includes:

the supporting piece is provided with a containing groove;

the adjusting component is arranged on the accommodating groove; and

the loudspeaker is connected to the adjusting component, and the adjusting component drives the loudspeaker to move so as to adjust the position of the loudspeaker relative to the supporting piece.

Optionally, the adjusting assembly includes a connecting member and a driving member for driving the connecting member, the driving member is disposed in the receiving slot, one end of the connecting member is connected to the driving member, and the other end of the connecting member is connected to the speaker.

Optionally, the adjusting assembly further includes two driving members and two connecting members, one of the driving members is connected to one of the connecting members, and the two connecting members are respectively disposed on two sides of the speaker.

Optionally, the adjustment assembly further includes an installation shell, the installation shell is disposed in the containing groove, the installation shell is provided with two yielding ports, the two driving members are disposed in the installation shell, and the two connecting members are respectively disposed through the yielding ports and connected to the driving members.

Optionally, the adjusting assembly further includes an elastic member, the connecting member is a screw rod, the elastic member is connected between the screw rod and the speaker, and the other screw rod is rotatably connected to the speaker.

Optionally, the sound playing structure further includes a sliding member, the sliding member is slidably disposed in the receiving groove, and the adjusting assembly is connected to the sliding member and slides with respect to the supporting member along with the sliding member.

Furthermore, in order to achieve the above object, the present invention further provides a head-mounted display apparatus, which includes a sound pickup microphone and the sound playing structure as described above, wherein the sound pickup microphone is provided on the support and/or the speaker.

Optionally, the pickup microphone includes two, one pickup microphone is located the support piece, another pickup microphone is located the speaker, two pickup microphone's pickup direction is opposite.

In addition, in order to achieve the above object, the present invention further provides a sound playing method, which is applied to the head-mounted display device, and the sound playing method includes:

extracting the internal audio of the loudspeaker to obtain the external audio of the environment where the loudspeaker is located;

calculating a noise signal of the environment where the loudspeaker is located according to the external audio and the internal audio;

extracting a noise value from the noise signal, and comparing the noise value with a preset noise threshold value to generate a comparison result;

and controlling the adjusting component to drive the loudspeaker to move according to the comparison result so as to adjust the position of the loudspeaker relative to the supporting piece.

Optionally, the step of calculating a noise signal of an environment where the speaker is located according to the external audio and the internal audio further includes:

identifying an audio signal with the same frequency of the external audio and the internal audio;

adjusting the vibration amplitude of the internal audio frequency to enable the vibration amplitude of the internal audio frequency to be close to the vibration amplitude of the audio signal;

and offsetting the external audio and the internal audio for adjusting the vibration amplitude to obtain a noise signal of the environment where the loudspeaker is located.

According to the technical scheme provided by the invention, the position of the loudspeaker for playing sound can be adjusted. The position of the loudspeaker for playing sound is changed by the adjusting function of the adjusting component on the supporting piece. For example, the adjusting component drives the speaker to approach or depart from the support component, and the direction of sound played by the speaker is adjusted. The position of the speaker facing the user's ear can also be adjusted. Therefore, when a user wears and uses a corresponding product for a long time, the technical scheme of the invention can adjust the position of the sound played by the loudspeaker through the adjusting component, thereby reducing the oppression of the loudspeaker on the human ear and relieving the uncomfortable influence on the human ear.

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 structural diagram of a head-mounted display device with a sound playing structure according to an embodiment of the present invention;

FIG. 2 is an exploded view of the head mounted display device of FIG. 1;

FIG. 3 is an exploded view of the audio playback structure of FIG. 1;

FIG. 4 is a flowchart illustrating a sound playing method according to an embodiment of the present invention;

fig. 5 is a flowchart illustrating a sound playing method according to another embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Support piece	220	Screw mandrel
110	Receiving groove	230	Elastic piece
				20	Adjusting assembly	240	Sliding member
210	Mounting shell	30	Loudspeaker
				211	Let a mouthful	40	Display unit

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 all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The head-mounted display device is an electronic product capable of providing a user with an immersive experience, and the display principle of the head-mounted display device is various. For example, AR (Augmented Reality) display, VR (Virtual Reality) display, MR (Mixed Reality) display, and the like. The head-mounted display device is provided with a loudspeaker, which is also called a loudspeaker, so that when a user wears the head-mounted display device for a long time, the ears of the user feel oppressed and uncomfortable.

In order to solve the above problem, referring to fig. 1 to 3, the present invention provides a sound playing structure, including: a support member 10, an adjustment assembly 20 and a speaker 30, wherein one end of the adjustment assembly 20 is connected to the support member 10, and the other end of the adjustment assembly 20 is connected to the speaker 30.

The supporting member 10 is provided with a receiving groove 110; the supporting member 10 is used to support the sound playing structure, for example, when the sound playing structure is mounted on the head-mounted display device, the supporting member 10 is a supporting leg that can be worn on the ear. A receiving slot 110 is formed on the supporting member 10, the adjusting component 20 is disposed in the receiving slot 110, the speaker 30 is connected to the adjusting component 20, and the adjusting component 20 drives the speaker 30 to move so as to adjust the position of the speaker 30 relative to the supporting member 10. The speaker 30 is a full-band directional speaker, also called a wide-band directional speaker. Can play the sound of frequency broad range through the directional speaker of full frequency channel, the directive directionality of the improvement sound propagation through the directional speaker of full frequency channel simultaneously. In addition, the manner in which the adjustment assembly 20 adjusts the propagation of the speaker 30 may be varied. For example, the speaker 30 may be driven to retract into the receiving groove 110, and the speaker 30 may be pushed to extend out of the receiving groove 110, thereby enabling the speaker 30 to approach or move away from the user's ear. The speaker 30 may also be rotated to adjust the direction in which sound is propagated by the speaker 30. Furthermore, the adjustment assembly 20 can also slidably adjust the position of the speaker 30 facing the user.

In the technical solution proposed in this embodiment, the position where the speaker 30 plays sound can be adjusted. The position of the speaker 30 playing the sound is further changed by the adjustment action of the adjustment assembly 20 on the support 10. For example, the adjusting component 20 moves the speaker 30 close to or away from the support 10, and adjusts the direction of sound played by the speaker 30. The position of the speaker 30 facing the user's ear can also be adjusted. Therefore, when a user wears and uses a corresponding product for a long time, the technical scheme of the invention can adjust the position of the loudspeaker 30 for playing the sound through the adjusting component 20, so that the stress on the human ear caused by the loudspeaker 30 is reduced, and the uncomfortable influence on the human ear is relieved.

In the above embodiment, in order to enable effective adjustment of the position of the speaker 30. The adjusting assembly 20 includes a connector and a driving member for driving the connector, the driving member being disposed in the receiving groove 110, one end of the connector being connected to the driving member, and the other end of the connector being connected to the speaker 30. The driving piece can drive the connecting piece to move under the condition of switching on the power supply. For example, the connecting member is retractable in the receiving groove 110, so that the speaker 30 is moved toward or away from the support member 10 by the retractable action of the connecting member. In the process of moving the speaker 30 closer to or away from the support 10, it is understood that the speaker 30 can be moved closer to or away from the ear of the user. So, can adjust the distance of speaker 30 and user's ear, make the position of speaker 30 apart from the ear moderate, reduce the oppression of speaker 30 to the ear, can also guarantee simultaneously that the user can hear clearly the sound.

In the above embodiment, the angle of the sound played by the speaker 30 can be adjusted more flexibly. The adjustment assembly 20 further comprises two driving members and two connecting members, wherein one driving member is connected to one connecting member, and the two connecting members are respectively disposed at two sides of the speaker 30. The end face orientation of the speaker 30 playing sound can be adjusted by the action of the two connectors. For example, when the two connectors are extended and retracted by the same distance, the end surface of the speaker 30 playing sound can be ensured to translate. When the two connectors are different in telescopic distance, the end face of the loudspeaker 30 playing sound can be inclined, so that the angle of playing sound can be adjusted, namely the direction of the end face playing sound is adjusted. When the orientation of the end face playing the sound is adjusted, one connecting piece can be fixed, and the other connecting piece can stretch under the action of the corresponding driving piece.

In the above embodiment, the adjusting assembly 20 further includes a mounting shell 210, the mounting shell 210 is disposed in the receiving groove 110, the mounting shell 210 is provided with two yielding openings 211, the two driving members are disposed in the mounting shell 210, and the two connecting members are respectively disposed through the yielding openings 211 and connected to the driving members. It can be seen that the two driving members are independently arranged, so that the connecting members can be respectively adjusted, and thus, the position of the speaker 30 can be more flexibly changed. In addition, the driving member is disposed in the mounting case 210, and the mounting case 210 can also protect the driving member.

In one embodiment, the adjusting assembly 20 further includes an elastic member 230, the connecting member is a lead screw 220, the elastic member 230 is connected between one lead screw 220 and the speaker 30, and the other lead screw 220 is rotatably connected to the speaker 30. The rotational twisting of the speaker 30 can be achieved by the rotational fitting of the elastic member 230 of one lead screw 220 and the other lead screw 220. Furthermore, in order to facilitate the rotation of the speaker 30, a ball may be provided at an end portion rotatably connected to the speaker 30, so that the rotation adjustment of the speaker 30 can be more easily performed, and the ball may be understood as a rotational joint, so that the speaker 30 can be adjusted toward a larger rotation angle.

In one embodiment, the sound playing structure further includes a sliding member 240, the sliding member 240 is slidably disposed in the receiving slot 110, and the adjusting assembly 20 is connected to the sliding member 240 and slides along the sliding member 240 relative to the supporting member 10. The adjustment assembly 20 can slide along with the sliding member 240, and the corresponding speaker 30 can also move along with the sliding member 240. A slide rail is provided in the receiving groove 110, the sliding member 240 is provided on the slide rail, and the sound reproducing structure further includes a slide driving portion (not shown) for driving the sliding member 240 by the slide driving portion, so that the sliding member 240 can move along the slide rail. Therefore, the position of the loudspeaker 30 facing to the human ear can be adjusted, so that the sound playing structure is suitable for users with different head types, and the end face of the loudspeaker 30 playing sound is ensured to correspond to the human ear.

The present invention also provides a head-mounted display device comprising a sound pick-up microphone provided to the support 10 and/or the loudspeaker 30 and a sound playing structure as described above. Therefore, the sound pickup microphone has three types of arrangement. The first is that the pickup microphone is provided on the support member 10, the second is that the pickup microphone is provided on the speaker 30, and the third is that the pickup microphone is provided on both the support member 10 and the speaker 30. The sound pickup microphone is used for acquiring external sound signals, so that the environment of the user can be judged, and the position of the loudspeaker 30 in the sound playing structure relative to the support member 10 can be adjusted according to the environment of the user. In addition, the head-mounted display device further includes a display part 40, the two ends of the display part 40 are respectively provided with the support 10, and the display part 40 is used for displaying a virtual picture.

In the above embodiment, the two microphones include two microphones, one is disposed on the supporting member 10, and the other is disposed on the speaker 30, and the two microphones have opposite sound collecting directions. A wider sound can be obtained by the two pickup microphones. And the directions of the sound acquired by the two sound pickup microphones are opposite, so that when the user uses the head-mounted display device, the sound on two sides of the user can be acquired, and the more accurate acquisition of the environmental sound can be acquired.

The present invention further provides a sound playing method, where the sound playing method is applied to a speaker 30, the speaker 30 is mounted on a support 10, and referring to fig. 4, the sound playing method includes:

step S10, extracting the internal audio of the loudspeaker and acquiring the external audio of the environment where the loudspeaker is located; the speaker is connected with the control end, and the control end includes the treater, and treater electric connection is in the speaker, and the audio signal of speaker is directly drawed to the treater. In addition, the processor can also acquire the external audio of the environment where the loudspeaker is located, wherein the external audio can be acquired through the pickup microphone in an acquisition mode, and the pickup microphone transmits the external audio to the processor of the control end. In order to ensure that the acquired external audio signal is more accurate, the pickup microphone may include two pickup microphones, and the two pickup microphones have opposite pickup directions.

Step S20, calculating the noise signal of the environment where the loudspeaker is located according to the external audio and the internal audio; the external audio comprises two audio signals, one is audio generated by a loudspeaker, and the other is background audio, which can be understood as noise. For example, a train running on the user's body includes, in addition to the sound emitted from the speaker, noise emitted while the train is running, and sounds emitted from other passengers on the train. By removing the internal audio from the external audio, a noise signal of the environment in which the loudspeaker is located can be derived.

Step S30, extracting a noise value from the noise signal, comparing the noise value with a preset noise threshold value, and generating a comparison result; the comparison may be performed by comparing the magnitude of the noise value with the magnitude of the noise threshold, and determining whether the noise value is smaller than the noise threshold or larger than the noise threshold, or whether the noise value and the noise threshold are equal. The control end also comprises a memory, the memory is connected with the processor, and the noise threshold value is stored in the memory.

In step S40, the adjusting component is controlled to drive the speaker to move according to the comparison result, so as to adjust the position of the speaker relative to the supporting member. The noise threshold includes a plurality of values. This makes it possible to perform a plurality of adjustment operations and to control the speaker more finely.

Further, in the above embodiment, referring to fig. 5, the step of calculating the noise signal of the environment where the speaker is located according to the external audio and the internal audio further includes:

step S210, identifying audio signals with the same frequency of the external audio and the internal audio; sound is a mechanical wave, and the propagation of sound has a range of frequencies. The outside audio must have the same frequency as the speaker, and the audio signals with the same frequency are identified and can be understood as the sound emitted by the speaker.

Step S220, adjusting the vibration amplitude of the internal audio frequency to enable the vibration amplitude of the internal audio frequency to be close to the vibration amplitude of the audio signal; the internal audio is directly obtained through the circuit, and the sound emitted by the loudspeaker in the external audio is propagated through vibration, so that the sound magnitude of the two audio is possibly different, namely the amplitude of the two audio is different. In order to obtain an accurate noise signal, the audio emitted by the speaker needs to be removed from the external audio, and for this reason, the vibration amplitude of the internal audio is adjusted to be close to the vibration amplitude of the audio signal, so that the vibration amplitude of the internal audio is the same as the vibration amplitude of the audio signal, and the internal audio and the audio signal can be offset with each other. The adjustment may be performed only on the internal audio or audio signal, or may be performed simultaneously on both of the internal audio and audio signals.

Step S230, the external audio and the internal audio for adjusting the vibration amplitude are cancelled to obtain a noise signal of the environment where the speaker is located. To be able to obtain an accurate noise signal, the internal audio and audio signals are adjusted to be close to each other. For example, the internal audio and the audio signal are equal in vibration amplitude. And performing difference processing on the external audio and the internal audio for adjusting the vibration amplitude, so as to obtain a noise signal of the environment where the loudspeaker is located.

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

Claims

1. A sound playing structure, the sound playing structure comprising:

the supporting piece is provided with a containing groove;

the adjusting component is arranged on the accommodating groove; and

the loudspeaker is connected to the adjusting component, and the adjusting component drives the loudspeaker to move so as to adjust the position of the loudspeaker relative to the supporting piece;

the adjusting component comprises a connecting piece and a driving piece for driving the connecting piece, the driving piece is arranged in the containing groove, one end of the connecting piece is connected with the driving piece, and the other end of the connecting piece is connected with the loudspeaker; the connecting piece can be extended and retracted in the containing groove, so that the loudspeaker is driven to be close to or far away from the ear of a wearer through the extension and retraction of the connecting piece;

the adjusting assembly further comprises two driving pieces and two connecting pieces, one driving piece is connected with one connecting piece, and the two connecting pieces are respectively arranged on two sides of the loudspeaker;

the adjusting assembly further comprises an elastic piece, the connecting piece is a screw rod, one screw rod is connected with the loudspeaker through the elastic piece, and the other screw rod is rotatably connected with the loudspeaker.

2. The sound playing structure of claim 1, wherein the adjusting assembly further includes a mounting shell, the mounting shell is disposed in the receiving groove, the mounting shell has two relief openings, the two driving members are disposed in the mounting shell, and the two connecting members are respectively disposed through the relief openings and connected to the driving members.

3. The sound reproducing structure as claimed in claim 1 or 2, further comprising a sliding member slidably disposed in the receiving slot, wherein the adjusting member is connected to the sliding member and slides with respect to the supporting member along with the sliding member.

4. A head-mounted display device, characterized in that the head-mounted display device comprises a sound pickup microphone and a sound playing structure according to any one of claims 1 to 3, the sound pickup microphone being provided at the support and/or the loudspeaker.

5. The head-mounted display device as claimed in claim 4, wherein the sound-collecting microphone comprises two sound-collecting microphones, one sound-collecting microphone is disposed on the supporting member, and the other sound-collecting microphone is disposed on the speaker, and the sound-collecting directions of the two sound-collecting microphones are opposite.

6. A sound reproduction method applied to the head-mounted display device according to claim 4 or 5, the sound reproduction method comprising:

7. The sound playing method of claim 6, wherein the step of calculating the noise signal of the environment where the speaker is located according to the external audio and the internal audio further comprises: