Wearable Sound Device

Abstract

To provide a wearable sound device 10 which functions as an ear plug.SOLUTION: A wearable sound device 20 has a vent device including a film structure 211 and an actuator 212, and is controlled by a controller to drive the actuator, so that the film structure is controlled to form or seal a vent 213. The controller is further coupled to a sense device, which generates a sense result, so that it is determined whether the vent is sealed according to the sense result. The film structure partitions the space in the wearable sound device into a first volume and a second volume. The first volume is connected to or to be connected to the external auditory canal of a wearable sound device user. The second volume is connected to or to be connected to a circumference of the wearable sound device. When the vent is formed, the connections with the first volume and second volume are made through the vent.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present application relates to wearable sound devices, and more particularly to wearable sound devices that can improve user experience. [Background technology]

[0002] Noise can disrupt sleep and affect your health. While it may be difficult to filter out noise sources such as snoring or birds chirping, earplugs for sleep can help mask the noise and improve your quality of sleep. However, using earplugs can result in missing important sounds such as a crying baby, a fire alarm, or a phone call. Summary of the Invention

[0003] It is therefore a primary objective of this application to provide a wearable sound device that enhances the user experience.

[0004] An embodiment of the present application provides a wearable sound device, comprising: a vent device including a film structure and an actuator disposed on the film structure; a driving circuit controlled by a controller and configured to drive the actuator, the film structure being controlled to form a vent or seal the vent; the controller is coupled to a sensing device configured to generate a sensing result; the film structure divides a space within the wearable sound device into a first volume and a second volume; the first volume is connected or is connected to an ear canal of a wearable sound device user; the second volume is connected or is connected to the surroundings of the wearable sound device; when the vent is formed, the first volume and the second volume are connected through the vent; and the controller decides whether to seal the vent according to the sensing result.

[0005] An embodiment of the present application provides a wearable sound device, comprising: a vent device including a film structure and an actuator disposed on the film structure; a driving circuit controlled by a controller and configured to drive the actuator, the film structure being controlled to form a vent or seal the vent; the film structure divides a space within the wearable sound device into a first volume and a second volume; the first volume is connected or adapted to be connected to an ear canal of a wearable sound device user; the second volume is connected or adapted to be connected to the surroundings of the wearable sound device; when the vent is formed, the first volume and the second volume are connected through the vent; the controller receives an instruction signal and determines whether to open the vent according to the instruction signal.

[0006] An embodiment of the present application provides a wearable sound device, comprising a vent device configured to be controlled by a controller to form a vent or seal the vent; the controller is coupled to a sensing device, the sensing device configured to generate a sensing result; a space within the wearable sound device is partitioned into a first volume and a second volume; the first volume is connected or is connected to an ear canal of a wearable sound device user; the second volume is connected or is connected to the surroundings of the wearable sound device; when the vent is formed, the first volume and the second volume are connected via the vent; and the controller decides whether to seal the vent according to the sensing result.

[0007] An embodiment of the present application provides a wearable sound device, comprising a vent device configured to be controlled by a controller to form a vent or seal the vent; a space within the wearable sound device is partitioned into a first volume and a second volume; the first volume is connected or is connectable to an ear canal of a wearable sound device user; the second volume is connected or is connectable to an environment of the wearable sound device; when the vent is formed, the first volume and the second volume are connected via the vent; the controller receives an instruction signal and determines whether to open the vent according to the instruction signal.

[0008] These and other objects of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiments that are illustrated in the various figures and drawings. [Brief description of the drawings]

[0009] [Figure 1] 1 is a schematic diagram of a wearable sound device according to an embodiment of the present application. [Diagram 2] 1 is a schematic diagram of a wearable sound device according to an embodiment of the present application. [Diagram 3] 1 is a schematic diagram of a wearable sound device according to an embodiment of the present application. [Figure 4] FIG. 2 is a schematic diagram of a controller according to an embodiment of the present application. [Diagram 5] FIG. 2 is a schematic diagram of a controller according to an embodiment of the present application. [Figure 6] 1 is a schematic diagram of a wearable sound device according to an embodiment of the present application. [Figure 7] 1 is a schematic diagram of a wearable sound device according to an embodiment of the present application. [Figure 8] 1 is a schematic diagram of a system according to an embodiment of the present application. [Figure 9] 1 is a schematic diagram of a wearable sound device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The use of sequential terms such as "first" and "second" does not, in itself, imply a priority, sequential precedence, or order of one element over other elements, or a chronological order in which the acts of a method are performed, or a requirement that all elements be present at the same time. They are used only as labels to distinguish elements having a certain name from other elements having the same name. The technical features described in the following embodiments may be mixed or combined in various ways as long as there is no contradiction between them.

[0011] 1 is a schematic diagram of a perspective view of a wearable sound device 10 placed on an ear 10EAR according to an embodiment of the present application. The wearable sound device 10 (e.g., an in-ear device) can function as an earplug for sleeping. The wearable sound device 10 is equipped with a vent device 110.

[0012] The vent device 110 is configured to form or seal a vent. The wearable sound device 10 can be switched between a closed state to reduce sound wave propagation (or increase sound attenuation) and an open state to allow sound wave propagation (or decrease sound attenuation). The space inside the wearable sound device 10 can be partitioned into a first volume and a second volume. The first volume generally represents a volume inside the wearable sound device 10 that is connected or to be connected to the ear canal of the ear 10EAR. The second volume generally represents a volume inside the wearable sound device 10 that is connected or to be connected to the surrounding environment of the wearable sound device 10. The first volume and the second volume are partitioned by internal components inside the wearable sound device 10. When the vent is closed / sealed, the first volume and the second volume are largely unconnected. When a vent is formed in the vent device 110, the two volumes are connected via the vent, allowing sound / air to vent from one to the other.

[0013] In general, background sound may refer to any audio outside the wearable sound device 10, including sounds that may not normally be considered noise, such as alarms, speech, music, or calls directed to the wearable sound device 10. To improve sleep quality in noisy environments, the vents of the wearable sound device 10 are sealed. However, for safety reasons, the vents of the wearable sound device 10 may be formed to alert the user of the wearable sound device 10 in the event of an alarm or the sudden appearance of a light.

[0014] In another aspect, the vents of the wearable sound device 10, when temporarily opened, may create an airflow channel between the ear canal of the ear 10EAR and the external surrounding environment to relieve the pressure caused by the occlusion effect and reduce the occlusion effect. However, in terms of frequency response, the airflow channel causes a significant drop in sound pressure level (SPL) at lower frequencies. Therefore, the vents may be sealed when the wearable sound device 10 is playing music for the wearable sound device user.

[0015] In other words, the wearable sound device 10 is an earphone with a dynamic vent. The dynamic vent can create an airflow channel between the earphone pre-chamber / volume that connects to the ear canal of the ear 10EAR and the outside environment. In one embodiment, whether the vent of the wearable sound device 10 is open or closed to reduce or increase sound attenuation may depend on the ambient conditions, such as the signal type of the ambient signal (optical / audio / smoke / motion) and the signal strength. The signal type of the ambient signal (optical / audio / smoke / motion) may be classified into two or more hazard classes to describe the level of risk.

[0016] Any mechanism capable of creating or blocking a vent may be utilized as the vent device 110 of the present invention. For example, FIG. 2 is a schematic diagram of a wearable sound device 20 according to an embodiment of the present application. In FIG. 2, (a) shows a vent device 210 and a driving circuit 220 of the wearable sound device 20, and (b) conceptually shows a cross-sectional view of the wearable sound device 20. The vent device 110 may be realized by the vent device 210.

[0017] The vent device 210 may include a film structure 211 and an actuator 212 disposed on the film structure 211. A slit may divide the film structure 211 into two opposing flaps 211a and 211b. The flaps 211a / 211b may include a fixed end and a free end, whereby the flaps 211a / 211b are actuated by the actuator 212 to swing up or down. The movement of the free end of the flap 211a may be different from the movement of the free end of the flap 211b. The flaps 211a and 211b may move in the same direction (e.g., clockwise or counterclockwise) to form the vent 213. In another embodiment, the vent may be formed by the flaps 211a / 211b swinging in two opposite directions (e.g., clockwise and counterclockwise).

[0018] The closed and open states may be defined as follows: vent 213 is said to be open or formed when the difference between the displacement of the free end of flap 211a and the displacement of the free end of flap 211b is greater than the thickness of film structure 211. Conversely, vent 213 is said to be closed or sealed when the difference between the displacement of the free end of flap 211a and the displacement of the free end of flap 211b is at least less than the thickness of film structure 211, or when the free end of flap 211a substantially overlaps or is in physical contact with the free end of flap 211b.

[0019] As shown in FIG. 2(b), the film structure 211 divides the space in the housing 100 of the wearable sound device 20 into a volume 231 and a volume 232. The (first) volume 231 is connected to or is to be connected to the ear canal of the wearable sound device user. The (second) volume 232 is connected to or is to be connected to the surrounding environment of the wearable sound device 20. When the actuator 212 is actuated to temporarily open the vent 213 between the free end of the flap 211a and the free end of the flap 211b, the volumes 231 and 232 are connected via the vent 213, which connects the surrounding environment of the wearable sound device 20 to the ear canal of the wearable sound device user. This may cause sound leakage. When the vent 213 is blocked, the volumes 231 and 232 are substantially disconnected and the wearable sound device's surroundings and the wearable sound device user's ear canal are substantially separated or isolated from each other. There is little or no air movement through or into the wearable sound device 20. The film structure 211 then acts as a physical barrier blocking out ambient noise.

[0020] A driving circuit 220 coupled to the vent device 210 is configured to drive the actuator 212 of the vent device 210 to control the film structure 211 to form or seal the vent 213. For example, the driving circuit 220 can apply different voltages (or the same voltage, such as a first voltage level) to the actuating portions 212a and 212b of the actuator 212 to open the vent 213, and can apply the same voltage (e.g., a second voltage level) to the actuating portions 212a and 212b to close the vent 213, although the invention is not so limited. By applying a voltage to the vent device 210 using the driving circuit 220, the wearable sound device 20 can be switched between a closed state that reduces background noise and an open state that allows sound to pass.

[0021] 3 is a schematic diagram of a wearable sound device 30 according to an embodiment of the present application. Compared with the wearable sound device 10, the wearable sound device 30 further includes a controller 330 and a sensing device 340.

[0022] The sensing device 340 is configured to detect / monitor environmental conditions, some of which may indicate potential risks or activity scenarios. The sensing device 340 may be an environmental sensing device, such as a voice sensing device (or voice capture device), a light sensing device, a smoke sensing device, a motion sensing device, an earthquake sensing device, a health sensing device, other sensors, or a combination thereof. The voice capture device may be a microphone or a device that captures sounds from the surrounding environment and converts them into a digital form of signal for further processing. The sensing device 340 may generate a sensing result SR3 according to its environmental monitoring.

[0023] A controller 330 coupled to the sensing device 340 is configured to determine whether to seal / open a vent (e.g., 213) according to the sensing result SR3. The controller 330 can then use a control signal CS3 to control a drive circuit (e.g., 220) coupled to the controller 330 according to the determination. In one embodiment, the (package) size of the control signal CS3 can be small since the control signal CS3 simply instructs the opening / sealing of the vent.

[0024] If the controller 330 determines to open a vent (e.g., 213) based on the sensing result SR3, the controller 330 instructs the drive circuit 220 to drive an actuator (e.g., 212) of the vent device 110 to open the vent. For example, a flap (e.g., 211a) may be actuated to have a displacement and another flap (e.g., 211b) may be actuated to have a displacement. The difference between the two displacements is greater than the thickness (e.g., 211) of the film structure. Alternatively, a flap (e.g., 211a) may move in one direction and another flap (e.g., 211b) may move in the opposite direction.

[0025] In one embodiment, the controller 330 may generate the control signal CS3 based on the ambient background conditions to dynamically control the vent during sleep. In some embodiments, the sensed amount indicated by the sensed result SR3 represents the level of ambient noise, and the degree to which the vent opens is related to the sensed amount. For example, the louder the ambient noise, the greater the degree to which the vent opens. The vent may be closed in a noisy background and open in a non-noisy background. The vent may support a semi-close state when the background disturbance level is moderate. In this manner, the vent of the wearable sound device 30 may filter out loud sounds and sounds other than music to improve sleep quality.

[0026] 4 is a schematic diagram of a controller 430 according to an embodiment of the present application. The controller 330 may be implemented by the controller 430. The controller 430 may include a feature extraction unit 431 configured to perform a feature extraction operation and a scene classification unit 432 configured to perform a scene classification operation. The feature extraction unit 431 and the scene classification unit 432 may be implemented using a combination of software, firmware, and / or hardware. For example, the feature extraction unit 431 and the scene classification unit 432 may be implemented by, but not limited to, a control circuit, a processing circuit (e.g., DSP, digital signal processor), or an ASIC (application specific integrated circuit).

[0027] The feature extraction unit 431 can extract features from the sensing result (e.g., SR3) received by the feature extraction unit 431. For example, the sensing result may be related to audio sounds, such as snoring, fire alarms, music, or other ambient sounds. Correspondingly, the feature extraction unit 431 can map the sensing result in digital form to a type of feature that is easy for audio-based analysis to perform digital audio-based feature extraction. Alternatively, the feature extraction unit 431 may detect a specific keyword (e.g., "help" or a user name) or audio pattern (e.g., an ambulance siren or a fire alarm) from the sensing result. The feature extraction operation may include a fast Fourier transform or Mel-frequency cepstral coefficients. Alternatively, the feature extraction unit 431 may extract the intensity and the spectral bandwidth of the sensing result to perform digital feature extraction.

[0028] The scene classification unit 432 may characterize the features extracted by the feature extraction unit 431 and classify the features as a particular scene. For example, in an auditory scene classification operation, the scene classification unit 432 may pattern recognize the auditory-based features provided by the feature extraction unit 431 and classify the surrounding space (e.g., a bedroom) as a noisy background or a non-noisy background. The noisy background may include the auditory objects of air / vehicle traffic or snoring. Or, in a scene classification operation, the scene classification unit 432 may analyze the features provided by the feature extraction unit 431 (e.g., the spectral characteristics of the optical radiation in the sensing result) to detect / identify the presence of fire or smoke and classify the surrounding space as a danger zone, a hazardous zone, or a safety zone. Based on the classification, the scene classification unit 432 may generate a control signal (e.g., CS3) to the driving circuit (e.g., 220) or the vent device (e.g., 110). This allows the controller 430 to determine whether to seal / open the vent and output a control signal to regulate the vent.

[0029] 5 is a schematic diagram of a controller 530 according to an embodiment of the present application. The controller 330 may be implemented by the controller 530. The controller 530 may include an artificial intelligence (AI) unit 533 configured to perform feature extraction and scene classification operations. Similar to units 431 and 432, the AI ​​unit 533 may be implemented using a combination of software, firmware, and / or hardware (e.g., via a control / processing circuit or ASIC).

[0030] When a sensing result (e.g., SR3) to be interpreted / recognized is input via the trained AI unit 533 of the controller 530, the trained AI unit 533 can infer the sensing result according to its optimized parameters and generate / output a control signal (e.g., CS3) to the driving circuit (e.g., 220) or the vent device (e.g., 110). That is, the controller 530 applies / uses knowledge from the AI ​​unit 533 to infer a prediction. The AI ​​algorithm of the AI ​​unit 533 may include supervised learning, unsupervised learning, or reinforcement learning. The AI ​​algorithm of the AI ​​unit 533 may include a neural network layer such as a convolutional neural network, a recurrent neural network, or a long short-term memory network. This allows the controller 530 to decide whether to seal / open the vent and output a control signal to regulate the vent.

[0031] 6 is a schematic diagram of a wearable sound device 60 according to an embodiment of the present application. Compared with the wearable sound device 10, the wearable sound device 60 further comprises a controller 630.

[0032] The controller 630 is configured to receive the instruction signal DS6 and determine whether to open / seal the vent according to the instruction signal DS6. The controller 330 can then use the control signal CS3 to control the driving circuit (e.g., 220) according to its determination. The instruction signal DS6 can be an alarm signal, such as an alarm clock signal or a home alarm instruction. The instruction signal DS6 can be transmitted by an Internet of Things (IOT) device, such as a smartphone or an emergency earthquake warning system. The controller 630 and the IOT device can be assigned Internet Protocol (IP) addresses and can transfer data over a network.

[0033] In FIG. 3 or FIG. 6, the wearable sound device 30 or 60 includes a driving circuit 220 and a vent device 210 including a film structure 211. However, the present invention is not limited thereto. For example, FIG. 7 is a schematic diagram of a wearable sound device 70a and 70b according to an embodiment of the present application. (a) and (b) of FIG. 7 show the wearable sound device 70a and 70b, respectively. The controller 330 / 630 is configured to determine whether to seal / open the vent, and the vent device 110 of the wearable sound device 70a or 70b is controlled by the controller 330 or 630 using a control signal CS3 to form a vent or seal a vent. In general, the vent device 110 of the present application (or the wearable sound device 70a or 70b) may refer to a device that can be controlled to form a vent (connect a first volume and a second volume) or seal a vent, and is not limited to the vent device 210 including the film structure 211. The vent device 110 of the wearable sound device 70a or 70b may include components that can move linearly or non-linearly depending on the voltage level of the control signal CS3. For example, the vent device 110 of the present application (or the wearable sound device 70a or 70b) may include only one flap that can swing depending on the voltage level of the control signal CS3. The drive circuit 220 may not be present in the wearable sound device 70a or 70b.

[0034] In Fig. 3, 6 or 7, the wearable sound device 30, 60, 70a or 70b includes a controller 330, 630 or a sensing device 340. However, the present invention is not limited thereto. For example, Fig. 8 is a schematic diagram of a system 80Sa to 80Sd according to an embodiment of the present application.

[0035] FIG. 8(a) shows a system 80Sa including a wearable sound device 80a, a controller 330, and a sensing device 340. The wearable sound device 80a may be realized by the wearable sound device 10 or 20. The vent device 110 or the driving circuit 220 of the wearable sound device 80a is connected to the controller 330 outside the wearable sound device 80a via a wireless / wired connection. The wireless connection may be a short-range connection such as IEEE802.15.4 (ZigBee®) or Bluetooth® / BLE, a medium-range connection such as Wi-Fi®, or a long-range connection such as LTE or 5G. The controller 330 and the sensing device 340 may be located in an electronic device such as a smartphone, tablet, or other device that meets the highest speed computing requirements and has a large capacity battery. Leveraging the computing resources of the electronics can reduce the complexity, power consumption and battery life of the wearable sound device 80a by offloading all (computational) processing to the electronics. Also, a microphone or other sensor of the electronics may be used as the sensing device 340 of the wearable sound device 80a.

[0036] 8B shows a system 80Sb including a wearable sound device 80a and a controller 630. The vent device 110 or the driving circuit 220 of the wearable sound device 80a is connected to the controller 630 located in an electronic device outside the wearable sound device 80a via a wireless / wired connection.

[0037] 8(c) shows a system 80Sc including a wearable sound device 80c and a sensing device 340. The wearable sound device 80c includes a vent device 210, a driver circuit 220, and a controller 330, which is connected via a wireless / wired connection to a sensing device 340 located in the external electronics of the wearable sound device 80c.

[0038] 8(d) shows a system 80Sd including a wearable sound device 80d and a sensing device 340. The wearable sound device 80d may include a vent device 110 and a controller 330. The controller 330 is connected via a wireless / wired connection to the sensing device 340 located in the external electronics of the wearable sound device 80d.

[0039] FIG. 9 is a schematic diagram of a wearable sound device 90 according to an embodiment of the present application. The wearable sound device 90 may include vent devices 910a, 910b and a sound generating device 990, all of which may be disposed within a housing 900. The vent devices 910a, 910b and the sound generating device 990 may be coupled to a processing circuit. In the embodiment shown in FIG. 9, the vent devices 910a, 910b may be disposed symmetrically, but are not limited thereto. The vent devices 910a / b may include, but are not limited to, the film structure 211 shown in FIG. 2 and a lid (cover structure) covering the film structure 211. The sound generating device 990 configured to generate sound may be any type of electroacoustic transducer (e.g., speaker) used to play audio, such as music or other audio content, in response to an electrical input signal.

[0040] Further details or modifications of the wearable sound device, sound generating device, vent device, driving circuitry, or (active noise canceling) audio device are disclosed in U.S. Patent Application Nos. 16 / 920,384, 17 / 008,580, 17 / 842,810, 17 / 344,980, 17 / 344,983, and 17 / 720,333, the disclosures of which are incorporated herein by reference in their entireties and made a part hereof.

[0041] In one embodiment, the vent device (e.g., 110) may be a Micro-Electro-Mechanical Systems (MEMS) device. In one embodiment, the actuator (e.g., 212) may include a piezoelectric actuator or a Nanoscopic Electrostatic Actuation (NED) actuator.

[0042] In one embodiment, the sensing device may be or may include an accelerometer, a pressure sensor, an altitude sensor, or a proximity sensor. The controller (which may include a DSP) may decide whether to seal / open the vent according to the sensing result generated by the sensing device.

[0043] In summary, closing the vents in the wearable sound device of the present invention can prevent background noise from entering the ear canal and improve sleep satisfaction, but when the ambient environment is less disturbed, the vents can be opened to relieve pressure in the ear canal and provide better environmental awareness.

[0044] Those skilled in the art will readily observe that numerous modifications and variations of the apparatus and methods may be made while retaining the teachings of this invention. Accordingly, it is intended that the above disclosure be construed as limited only by the content and scope of the appended claims. [Prior art documents] [Patent documents]

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Non-licensed documents

[0046]

Non-patent document 1

Claims

1. a vent device comprising a film structure and an actuator disposed on the film structure; a drive circuit controlled by a controller and configured to drive the actuator, the film structure being controlled to form a vent or to seal the vent; The controller is coupled to a sensing device configured to generate a sensing result; The film structure divides a space within the wearable sound device into a first volume and a second volume; the first volume is connected or intended to be connected to an ear canal of a user of the wearable sound device; the second volume is connected or is intended to be connected to the periphery of the wearable sound device; When the vent is formed, the first volume and the second volume are connected via the vent, The controller determines whether to seal the vent according to the sensing result; the sensing device senses ambient sounds in an environment; The controller controls the vent device. setting the vent to an open state in response to the sensed ambient sound being at a first level; configuring the vent to a closed state in response to the sensed ambient sound being at a second level greater than the first level; A wearable sound device configured to set the vent to an intermediate closed state between the open state and the closed state in response to the sensed ambient sound being at an intermediate level between the first level and the second level.

2. The wearable sound device of claim 1 , comprising the controller, the controller being coupled to the driver circuit.

3. The wearable sound device of claim 1 , wherein the driver circuit is connected to the controller via a wireless connection.

4. A wearable sound device according to claim 1 , comprising said sensing device.

5. The wearable sound device of claim 1 , wherein the controller is connected to the sensing device via a wireless connection.

6. The wearable sound device of claim 1 , wherein the sensing device is an environmental sensing device.

7. The wearable sound device of claim 1 , wherein the sensing device is an optical sensing device.

8. The wearable sound device of claim 1 , wherein the sensing device is a sound sensing device.

9. The wearable sound device of claim 1 , wherein the controller is coupled to a sound sensing device and performs auditory-based feature extraction and auditory scene classification operations and generates control signals to the driver circuitry accordingly.

10. The wearable sound device of claim 1 , wherein the controller receives an instruction signal and determines whether to open the vent according to the instruction signal.

11. The wearable sound device of claim 10 , wherein the indication signal is an alarm signal.

12. The wearable sound device of claim 10, wherein the instruction signal is transmitted by an IOT (Internet of Things) device.

13. 10. The wearable sound device of claim 1, comprising a sound generating device configured to generate sound.

14. the film structure includes a first flap and a second flap; The wearable sound device of claim 1 , wherein when the controller determines to open the vent, the first flap moves in a first direction and the second flap moves in a second direction opposite to the first direction.

15. the film structure includes a first flap and a second flap; when the controller determines to open the vent, the first flap is actuated to have a first displacement and the second flap is actuated to have a second displacement; The wearable sound device of claim 1 , wherein the difference between the first displacement and the second displacement is greater than a thickness of the film structure.

16. The wearable sound device of claim 1 , wherein the sensing device comprises an accelerometer, a pressure sensor, an altitude sensor, or a proximity sensor.

17. a vent device comprising a film structure and an actuator disposed on the film structure; a drive circuit controlled by a controller and configured to drive the actuator, the film structure being controlled to form a vent or to seal the vent; The film structure divides a space within the wearable sound device into a first volume and a second volume; the first volume is connected or intended to be connected to an ear canal of a user of the wearable sound device; the second volume is connected or is intended to be connected to the periphery of the wearable sound device; When the vent is formed, the first volume and the second volume are connected via the vent, The controller receives an instruction signal and determines whether to open the vent according to the instruction signal; A sensing device senses ambient sounds in the environment; The controller controls the vent device. setting the vent to an open state in response to the sensed ambient sound being at a first level; configuring the vent to a closed state in response to the sensed ambient sound being at a second level greater than the first level; A wearable sound device configured to set the vent to an intermediate closed state between the open state and the closed state in response to the sensed ambient sound being at an intermediate level between the first level and the second level.

18. The wearable sound device of claim 17, wherein the indication signal is an alarm signal.

19. 18. The wearable sound device of claim 17, wherein the instruction signal is transmitted by an IOT (Internet of Things) device via a wireless connection.

20. the film structure includes a first flap and a second flap; 18. The wearable sound device of claim 17, wherein when the controller determines to open the vent, the first flap moves in a first direction and the second flap moves in a second direction opposite to the first direction.

21. the film structure includes a first flap and a second flap; when the controller determines to open the vent, the first flap is actuated to have a first displacement and the second flap is actuated to have a second displacement; The wearable sound device of claim 17 , wherein the difference between the first displacement and the second displacement is greater than a thickness of the film structure.

22. a vent device configured to be controlled by a controller to form a vent or to seal the vent; the controller is coupled to a sensing device, the sensing device being configured to generate a sensing result; A space within the wearable sound device is divided into a first volume and a second volume, the first volume is connected or intended to be connected to an ear canal of a user of the wearable sound device; the second volume is connected or is intended to be connected to the periphery of the wearable sound device; When the vent is formed, the first volume and the second volume are connected via the vent, The controller determines whether to seal the vent according to the sensing result; the sensing device senses ambient sounds in an environment; The controller controls the vent device. setting the vent to an open state in response to the sensed ambient sound being at a first level; configuring the vent to a closed state in response to the sensed ambient sound being at a second level greater than the first level; A wearable sound device configured to set the vent to an intermediate closed state between the open state and the closed state in response to the sensed ambient sound being at an intermediate level between the first level and the second level.

23. 23. A wearable sound device as claimed in claim 22, wherein the sensing device is a sound sensing device.

24. 23. The wearable sound device of claim 22, wherein the controller is coupled to the sound sensing device and performs auditory-based feature extraction and auditory scene classification operations and generates control signals to a driver circuit accordingly.

25. 25. The wearable sound device of claim 24, wherein the sensing device and the controller are located in an electronic device and the control signal is transmitted via a wireless connection.

26. 20. The wearable sound device of claim 17, wherein the sensing device comprises an accelerometer, a pressure sensor, an altitude sensor or a proximity sensor.

27. a vent device configured to be controlled by a controller to form a vent or to seal the vent; A space within the wearable sound device is divided into a first volume and a second volume, the first volume is connected or intended to be connected to an ear canal of a user of the wearable sound device; the second volume is connected or is intended to be connected to the periphery of the wearable sound device; When the vent is formed, the first volume and the second volume are connected via the vent, The controller receives an instruction signal and determines whether to open the vent according to the instruction signal; A sensing device senses ambient sounds in the environment; The controller controls the vent device. setting the vent to an open state in response to the sensed ambient sound being at a first level; configuring the vent to a closed state in response to the sensed ambient sound being at a second level greater than the first level; A wearable sound device configured to set the vent to an intermediate closed state between the open state and the closed state in response to the sensed ambient sound being at an intermediate level between the first level and the second level.

28. 28. The wearable sound device of claim 27, wherein the indication signal is an alarm signal.

29. 28. The wearable sound device of claim 27, wherein the instruction signal is transmitted by an IOT (Internet of Things) device via a wireless connection.

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