CN106101924B - Waterproof audio transmission device and indoor audio playing system - Google Patents

Abstract

In order to be installed in a wall type and be installed in any wet or water-immersed environment, so that a home user can use the audio equipment more conveniently in any indoor scene, in one embodiment, the audio transmission device is fixedly installed in a building surface, wherein a wiring cavity for accommodating a sound source body of the audio transmission device is formed in the building surface, and the sound source body is enclosed in the wiring cavity by a cover plate matched with the wiring cavity. In another embodiment, a waterproof audio transmission device is provided with a waterproof structure in a sound source body of the audio transmission device for discharging water outside the cover plate. In another embodiment, an indoor audio playing system comprises the audio transmission device and a digital mobile device, and the audio transmission device is communicatively coupled in a wireless manner.

Description

Waterproof audio transmission device and indoor audio playing system

Technical Field

Embodiments of the present invention generally relate to a wall-embedded audio transmitter, and more particularly, to a wall-embedded audio transmitter having a waterproof function in a humid environment, and an indoor audio playing or interactive system using the same.

Background

At present, research and development on audio transmitter devices, especially portable audio transmitters, are becoming more sophisticated, but research on home audio devices in the form of building surface installation is very lacking, and home audio devices installed on building surfaces have more advantages than portable audio transmitter devices, for example, space for placing audio devices in home rooms can be saved, and better effects in terms of, for example, waterproof performance can be achieved.

Disclosure of Invention

The invention aims to solve or at least improve the defects, and discloses a wall-mounted audio transmission device which can be installed in any wet or water-immersed environment, so that a home user can use the audio transmission device more conveniently in any indoor scene, and the audio transmission device has better use effect and experience compared with a common portable audio transmission device, thereby avoiding the user from using the portable audio transmission device to play audio contents in the wet environment, and simultaneously the audio quality can be better represented by the audio transmission device.

To achieve these objects, in one embodiment, an audio transmission device is fixedly installed in a building surface, wherein a wiring cavity for accommodating a sound source body of the audio transmission device is formed in the building surface, and the sound source body is enclosed in the wiring cavity by a cover plate matched with the wiring cavity.

In another embodiment, a waterproof audio transmission device is fixedly installed in a wet building, wherein a wiring cavity for accommodating a sound source body of the audio transmission device is formed in the building, the sound source body is enclosed in the wiring cavity by a cover plate matched with the wiring cavity, and the sound source body has a waterproof structure facing the cover plate side and used for discharging water outside the cover plate.

In one example of the audio transmission device of the present invention, a modularly mounted sound source body having a waterproof structure toward the cover plate side is built in. An example of the waterproof structure may be a smooth concave structure, which can isolate the sound source body from water flow in a wet environment, particularly, in an environment with a large water flow, and can ensure a better audio playing effect in the case of a discharged water flow.

Wherein, can form airtight or semi-airtight cavity in wall type audio transmission device, this cavity is a curved surface space that forms after by apron and the mutual lock of sound source body, sound source on the sound source body is towards this curved surface space, so, can with the air current vibration that the sound wave that the sound source produced in the vibration process brought transmits to in this curved surface space, such effect is that the rivers that drive to get into this cavity can discharge outside towards the apron under the undulant effort of air current.

In one implementation, such a wall-mounted audio delivery device is installed in a washroom (e.g., a bathroom), and water flow may be injected, even in large quantities, through any location on the cover. Can converge rivers on the sound source through the sunk structure on this sound source body to through above-mentioned mode with rivers discharge sound source surrounding space. Or the water flow flowing into the chamber can be divided into several parts, wherein one part can penetrate through the sound holes on the cover plate, and the other part can be discharged from the diversion trench through the air flow fluctuation generated by the sound source. Based on this realization, the concave structure of the sound source body surface can have a specific curvature in the longitudinal section, for example designed according to the common wall-mounted panel, and the curvature of the concave structure can be between 0.004 and 0.098m^-1In this way, the best results can be obtainedAnd (4) flow guiding effect.

In addition, the wall-mounted audio transmission device can prevent the performance of the sound source from being affected by the generation of a large water pressure to the sound source due to the accumulation of a large amount of water flow in the average extending direction due to the waterproof structure. Because under the condition that no large water pressure exists, the sound source is not influenced by the concave structure adjacent to the sound source in actual use. In the above embodiment, since the volume of the chamber is not designed to be excessively large due to the limited energy of the air flow vibration generated by the sound wave of the sound source, a skilled person should implement such a configuration according to the curvature of the above-described concave structure. Furthermore, the size of the recessed structure may be designed in proportion to the number and volume of sound sources that need to be installed.

In addition, the concave structure may have an irregular shape or at least include an irregular shaped portion, for example, a curved surface extending outward with respect to the sound source may have a convex or concave shape, or a shaped portion having a level change, so that the vibrating airflow generated by the sound wave can be more intensively and efficiently propagated. In the present specification, for the convex or concave structure or the irregularly shaped portion in the waterproof structure, "convex" indicates a smooth extension toward the cover plate, that is, toward the outside, "concave" indicates a smooth extension toward the building surface, and "concave" generally indicates a shape structure extending toward the building surface and may be expressed as "rearward" unless the direction is specifically indicated.

In yet another embodiment, an indoor audio playing system includes: the audio transmission device is arranged in a building surface in a washroom; a digital mobile device configured to be communicatively coupled to the audio transmission means by wireless means.

Through the teaching of the above embodiments, the skilled person can easily install the device or system arrangement of the present invention in any wet or submerged environment, which enables the home user to use the audio transmission device more conveniently in any indoor scene, and has better use effect and experience compared with the general portable audio transmission device. In addition, clutter filtering of the audio signal by the sound source body can enhance the sensitivity of the user.

Drawings

The best mode or means of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In addition, the features, elements and components appearing in each of the following and in the drawings are plural and different symbols or numerals are labeled for convenience of representation, but all represent components of the same or similar construction or function.

Fig. 1 schematically illustrates an exploded view of a portion of an audio transmission device according to the present invention;

fig. 2 is a functional block diagram showing the structure of a circuit substrate of the present audio transmission device;

fig. 3 shows another embodiment of the present audio transmission device;

FIG. 4 schematically depicts a side cross-sectional view of a recessed structure of an audio transmission device;

FIG. 5 schematically illustrates an application scenario in which the audio transmission apparatus is located;

fig. 6 is a flow chart of a method for audio transmission using the current audio transmission device.

Detailed Description

Referring to fig. 1, an exemplary audio transmission device is fixedly installed in a building surface (e.g., a vertical wall surface), wherein a wiring cavity 1 for accommodating a sound source body 2 of the audio transmission device is opened in the building surface, and the sound source body 2 is enclosed in the wiring cavity 1 by a cover plate 4 matched with the wiring cavity 1.

Particular embodiments of one or more such audio transmission devices will be described below. In an effort to provide a concise description of these embodiments, not all features of an actual implementation are described in the specification. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Reference in the specification to "one embodiment" or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the disclosure. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

In addition, in the following description and claims of the present invention, the terms "coupled" and "coupled," along with their derivatives, may be used. The skilled artisan will appreciate that these terms are not intended as synonyms for each other. "coupled" is used to indicate that two or more elements that are in direct physical or electrical contact or that may not be in direct physical or electrical contact with each other co-operate or interact with each other. "connected" is used to indicate the establishment of communication between two or more elements coupled to each other.

As a modification, the sound source body 2 has a waterproof construction toward the cover plate 4 side. In one example, the waterproof structure is a recessed structure 23 disposed in the surface of the sound source body for guiding water flow, wherein a sound source 27 for playing audio contents is disposed at the lowest portion in the recessed structure 23. The sound source 27 is a transducer, such as a microphone or a loudspeaker or both, for converting electrical signals from, for example, within the wiring cavity 1 to audio signals, or from electrical signals generated by an integrated circuit within the sound source body 2 to audio signals.

As another modification, the sound source body 2 further has a soundhole cover 3 attached to the surface of the waterproof structure of the sound source body 2, and the shape of the soundhole 31 of the soundhole cover 3 matches the waterproof structure. For example, in the example shown in fig. 1, the cover plate 4 may be divided into a separate frame and the acoustic hole cover plate 3, or the frame and the acoustic hole cover plate may be manufactured together, wherein the frame encloses a space 40 for accommodating the acoustic hole 32, that is, the acoustic hole 32 is convex forward in shape, and has a proper convex length considering that the surface of the acoustic hole 32 is flush with the surface of the cover plate 4 when penetrating into the space 40. In addition, the outline of the soundhole cover 3 is smaller than that of the cover 4, so that the indication member or the input member arranged on the cover 4 can be received at the corresponding position on the sound source body 2.

Referring to fig. 2, in particular, the sound source body 2 is also internally packaged with a circuit substrate arranged inside the rear end 26 of said sound source body 2, the circuit substrate mainly comprising:

a power supply 201, such as a switching power supply, is used to convert a mains alternating current (e.g., 220VAC) to a direct current. In the example shown in fig. 1, the power supply 201 can be inserted into the wiring cavity 1 at the bottom of the illustrated electricity-taking groove 12 by means of electrical pins, which has the effect of removing the power leads in the wiring cavity 1, thereby preventing corrosion or short circuit of the power leads due to long-term exposure to moisture. Moreover, as the inner contour of the wiring cavity 1 is matched with the shape of the rear part of the sound source body 2, moisture can permeate into the wiring cavity as little as possible;

the controller 202 receives a digital signal from the outside of the sound source body 2. The digital signal comprises control instructions or media content transmitted by electronic equipment outside the audio transmission device, or is an input command from a user, and the digital signal transmitted by the electronic equipment can be transmitted by a ZigBee, a Wi-Fi (wireless fidelity) or a Bluetooth protocol;

a sound source 27 coupled to the controller 202 for converting the digital signal into audio content;

a receiver 203 coupled to the controller 202 for receiving the digital signal or external control input and transmitting to the controller 202. For example, receiver 202 may include modulation circuitry adapted for any of the protocol transmissions described above. The external control input may be different input values input by the user through the input key 22, and the different control values are recognized by the driving circuit coupled to the input key 22 and then transmitted to the controller 202, for example, power on/off of the sound source body 2, selection of an operation mode, or listening/inputting of voice content.

As a variant, with reference to fig. 1, the circuit substrate also comprises a status indicator 21 coupled to the controller 202 for displaying the operating status of the sound source body 2 on the cover plate 4. For example, the operation state may include turning on/off the power of the sound source body 2, an operation mode such as play/record, or an indication of a setting mode required by the user, such as volume control.

As another variation, in conjunction with fig. 3, the circuit substrate further includes a display circuit 28 coupled to the controller 202 for displaying different operation status contents according to the control instructions output by the controller 202. The operation state content can be represented by the display circuit in various visual forms, such as a voice call interface, multimedia playing content or the indication of the operation state. In addition, the input keys 22 may have different configurations as shown in fig. 1 and 3, and different input keys 22 may be adapted according to different input functions.

In the example shown in fig. 1, the above-mentioned components or keys provided on the front surface of the sound source body 2 are all sealed by the cover 4 so that the soundhole cover 3 is sandwiched between the cover 4 and the front surface of the sound source body 2, and these components or keys can be presented through the corresponding positions on the cover 4. For example, the upper edge of the cover 4 is formed with a sealed through hole 41 corresponding to the above-mentioned status indicator 21, and light emitted from the indicator can be transmitted through the through hole 41, or the lower edge of the cover 4 is formed with a film key 42 for sealing the input key 22 and making close contact therewith.

The cover plate 4 may be made of a hydrophobic polymer material, such as polyethylene terephthalate (PET) or polyimide, or may be coated with a film of a hydrophobic polymer material to achieve indirect contact with the input keys 22, such as by way of the membrane keys 42. When different types of materials are used, the thickness of the material film will vary accordingly. The mounting through holes of the screws can be eliminated by pressing and fixing the cover plate 4 and the sound source body 2 through the plurality of clamping holes 25, so that the cover plate 4 can be better sealed.

As a further variation, the present embodiments are again directed to addressing or improving clutter in the audio signal associated with audio (including the user's voice) characteristics of the audio transmission device and the attenuation of the acquired or output audio signal from the sound source body if a water-resistant structure is provided. For example, the present embodiment is intended to solve the problem of impairing the output or sampling performance of the sound source 27 or the receiver 203 (e.g., microphone) itself due to the covering of other waterproof structures (e.g., waterproof films). In this case, it is desirable that the audio content (e.g., music) output by the sound source 27 remains clearly fluent, or that the user's speech component sampled by the receiver 203 is well-recognizable. The audio features may include, for example, voice-ready features, telephony features, and/or voice command features, etc., each of which may relate to a voice audio signal including user input or listening. However, in addition to the user's speech, the audio signal may also contain ambient sounds that are present when the audio features are used. Since these ambient sounds may obscure the user's input or speech being heard, the audio transmission device may apply clutter modifications to the audio signal to filter out the ambient sounds while preserving as much intelligibility as possible of the user's input speech.

The spur filtering according to the current embodiment may involve user-specific spur filtering parameters specific to the user of the audio transmission device. These user-specific clutter filtering parameters may be determined by speech learning, based on the user's speech profile, and/or based on manually selected user settings. When clutter filtering occurs based on user-specific clutter filtering parameters rather than general parameters, the sound of the clutter filtered audio signal may be more pleasing to the user. These user-specific clutter filtering parameters may be used for any speech-related feature and may be used in conjunction with Automatic Gain Control (AGC) and/or Equalization (EQ) tuning.

For example, a speech learning sequence may be used to determine user-specific clutter filtering parameters. In such a speech learning sequence, the audio transmission device may apply different clutter filtering parameters to the user's speech samples mixed with one or more interference factors (e.g., simulated ambient sound, etc.). Thereafter, the user may indicate which clutter filtering parameters produce the most preferred sound. Based on the user's feedback, the audio transmission device may form and store user-specific clutter filtering parameters for later use when using speech-related features of the audio transmission device.

In addition, user-specific clutter filtering parameters may be automatically determined by the audio transmission device as a function of the user's speech characteristics. Different user voices may have a variety of different characteristics, including different average frequencies, different frequency variability, and/or different differentiated sounds. In addition, certain clutter filtering parameters may be available to operate more efficiently for certain speech characteristics. Thus, the audio transmission device according to certain embodiments of the invention may determine user-specific clutter filtering parameters based on these user speech characteristics. In some embodiments, the user may manually set the clutter filtering parameter by, for example, selecting a high/mid/low frequency clutter filtering intensity selector or indicating the current call quality on the audio transmission device.

In the current embodiment, the clutter filtering may be performed by a data processing circuit, such as the controller 202, or by a clutter filtering circuit 204 coupled with the controller 202 that is dedicated to audio signal clutter filtering. For example, the spur filtering may be performed by the baseband integrated circuit based on an externally provided spur filtering parameter. Additionally or alternatively, the clutter filtering may be performed in, for example, a telephony audio enhancement integrated circuit configured to perform clutter filtering based on externally provided clutter filtering parameters, which may operate based at least in part on certain clutter filtering parameters. Varying these spur filtering parameters may vary the output of the spur filtering.

Additionally, the circuit substrate includes a body sensing circuit 205 coupled to the controller 202 and configured to detect a position for determining a position of a user relative to a current audio transmission device. For example, the human sensing circuit 205 may be based on an algorithm that estimates a location based on a wireless network (e.g., a home local area Wi-Fi network), or the like. The I/O interface of the controller 202 may enable the audio transmission device to be communicatively coupled to various other electronic devices via a network interface. For example, the network interfaces may include an interface for a Personal Area Network (PAN), such as a Bluetooth network, an interface for a Local Area Network (LAN), such as a Wi-Fi network, and/or an interface for a Wide Area Network (WAN), such as a 4G-LTE cellular network. The audio transmission device can be connected with the electronic equipment through the network interface. The human body sensing circuit 205 may use an infrared sensor or other electromagnetic sensor.

When features related to speech (e.g., phone features or speech recognition features) are captured, a receiver 203 (e.g., a microphone) may obtain a speech audio signal of the user. Although ambient sounds may be obtained in the audio signal in addition to the user speech, the clutter filtering circuit 204 may process the audio signal to exclude most ambient sounds based on certain user-specific clutter filtering parameters. The user-specific clutter filtering parameters may be determined by speech learning, based on a user's speech profile, and/or based on manually selected user settings.

When a user speaks a voice audio signal, this signal may enter the receiver 203. At about the same time, however, ambient sound may also enter the receiver 203. In connection with fig. 5, the ambient sound may change depending on the scene 10 in which the audio transmission device is being used. For example, a user may have a large difference in the environmental sound generated by the user in a normal environment when turning on the lavatory shower device 200. The characteristics of the ambient sound may vary within the application 10. As described in detail below, the audio transmitting device may perform clutter filtering to filter the ambient sound based at least in part on a user-specific clutter filtering parameter. In some embodiments, these user-specific clutter filtering parameters may be determined via speech learning in which various clutter filtering parameters may be tested on an audio signal containing an acquired user speech sample and various interference factors (e.g., simulated ambient sound). The distracting factors employed in the speech learning operation may be selected to simulate certain environmental sounds (e.g., water sounds). Furthermore, each audio transmission device in the scene 10 may occur at certain locations and times, with various volume levels of speech signals and ambient sounds. Thus, the audio transmission device may filter the ambient sound using user-specific clutter filtering parameters that are tailored to certain scenarios, such as volume levels.

In one embodiment, the voice-related feature involves two-way communication between the user and another person, and may occur while using a telephone or chat feature of the audio transmission device. It should be understood, however, that the audio transmission device may also perform clutter filtering on audio signals received through the receiver 203 or network interface of the audio transmission device when bi-directional communication is not occurring.

In another embodiment, the waterproof audio transmission device of the current embodiment is fixedly installed in a wet building, wherein a wiring cavity 1 for accommodating a sound source body 2 of the audio transmission device is formed in the building, the sound source body 2 is enclosed in the wiring cavity 1 by a cover plate matched with the wiring cavity 1, and the sound source body 2 has a waterproof structure facing the cover plate 4 side for discharging water out of the cover plate 4. Wherein, the waterproof structure is a concave structure 23 arranged in the surface of the sound source body 2 for guiding water flow, and a sound source 27 for playing audio content is arranged at the bottommost part in the concave structure 23.

Referring to fig. 4, a side sectional view of the recess structure 23 of the sound source body 2 is specifically shown. Specifically, a sound hole cover plate 3 for adhering the surface of the waterproof structure is further clamped between the sound source body 2 and the cover plate 4, the shape and the surface area of a sound hole 31 on the sound hole cover plate 3 are matched with the waterproof structure, and a plurality of diversion grooves 32 which are communicated with a cavity formed after the sound hole cover plate 3 is adhered to the recessed structure 23 are arranged at the bottom side of the sound hole cover plate 3 and are used for releasing water flow entering the cavity. According to the illustration in fig. 4, the water flow may be splashed or poured from any direction, for example when the user is using the shower 200, wherein several main schematic arrangements of the sound hole 31 are schematically shown. For example, the water stream 51 may splash into the chamber from the top, front, or bottom of the soundhole cover 3. Wherein when the water stream 51 splashes from the top of the soundhole cover 3, the splashed water stream 52 may naturally converge downward along the inner wall of the recess structure 23, for example, the water streams 53 and 54 may flow out of the soundhole 31 or the guiding gutter 32 at the bottom of the soundhole cover 3 according to the flowing direction of the fluid.

In the case that the flow rate of the splashed water flow 51 is small, the splashed water flow 52 will be naturally discharged, and when the water flow 52 with a large flow rate is poured into the chamber, the air flow vibration caused by the sound waves generated by the sound source 27 during the vibration process can be transmitted into the curved space in the concave structure 23, and a part of the water flow 55 of the water flow 52 entering the chamber can be discharged out of the cover plate 4 under the action of the air flow fluctuation. The water stream 52 may be funneled into the upper surface of the sound source 27 by the recessed structure 23 to exit the sound source 27 over a range of space around the sound source. That is, a part of the water flow 52 filled in the chamber will change its flow path under the action of the sound source 27, so that the water flow 52 can be prevented from covering the surface of the sound source 27 as much as possible to affect the voice output effect, for example.

Alternatively, the water flow flowing into the chamber may be divided into several parts, wherein one part may be transmitted through the sound hole 31 of the sound hole cover 3, that is, at least a part of the sound hole array of the sound hole 31 may be used as the flow guiding member. Another portion of the air flow fluctuations that may be generated by the acoustic source 27 is bled off from the channels 32. Based on this realization, the concave structure 23 of the sound source body 2 surface may have a specific curvature in longitudinal section, for example according to the general 86²mm²The curvature of the concave structure 23 may be between 0.004 and 0.098m^-1In the meantime. For example, 0.067m may be selected^-1。

As another variant, the sound source body 2 and the wiring cavity are sealed by a waterproof ring 13. The wiring cavity 1 has a receiving cavity 11 suitable for receiving the rear end 26 of the sound source body 2, the sound source body 2 is enclosed in the wiring cavity 1 by a cover plate 4 matched with the wiring cavity 1, so that the water flow 51 will not penetrate into the joint of the cover plate 4 and the wiring cavity 1 to affect the quality of the power lead.

In yet another embodiment, fig. 5 pictorially illustrates a scene 10 (e.g., a washroom) within which an indoor audio playback system may be disposed, including a plurality of audio transmission devices 100, disposed within a plurality of architectural surfaces in the washroom. The indoor audio playback system also includes a user's digital mobile device configured to be communicatively coupled to the audio delivery apparatus 100, such as by wireless means.

As a modification, the indoor audio playing system further includes a switch 101 disposed in a building surface outside the toilet room, for controlling the power on/off of the audio transmission device 100. For example, a conductive path 102 for transmitting power is provided within a building surface to turn off the power supply of the audio transmission device 100 when a user leaves the scene 10. In the present modification, the switch 101 is configured to control the power on/off of one of the audio transmission devices 100, or the power on/off of a part of the audio transmission devices 100.

As another variation, the switch 101 may include a communication circuit for communicative connection with the digital mobile device. According to the current embodiment, the digitizing mobile device may specifically include one or more processors, memory, non-volatile storage, a display, position sensing circuitry, input/output (I/O) interfaces, network interfaces, image capture circuitry, accelerometers/gyroscopes. The various functional modules shown in fig. 5 may include hardware elements (including circuitry), software elements (including computer code stored on a computer-readable medium), or a combination of both hardware and software elements. One embodiment of a digital mobile device is a handheld digital apparatus. For example, it may be a cellular phone, a media player, a personal data organizer, a handheld game platform, or any combination of these devices.

In the embodiment of fig. 5, after the user enters the scene 10, the digital mobile device may be communicatively connected to the audio transmission device 100 because the user may be worried about the digital mobile device being placed in a humid environment or splashing water, and the media data of the digital mobile device may be wirelessly transmitted to one or more audio transmission devices 100, such as a voice call or audio and video media data. In one embodiment, the media data may be received and demodulated by the communication circuitry of switch 101 and transmitted to one or more audio transmission devices 100 via conductive path 102. In this way, the user can listen to a voice call or enjoy music during bathing, for example.

In one embodiment of fig. 6, a method of transmitting media data by the audio transmission device 100 may include the steps of:

s100, the audio transmission device 100 is turned on through the switch 101, and one or more digital mobile devices can be connected through the communication circuit in the switch 101 in a communication mode. The way in which the communication connection can be made is, for example, the Bluetooth protocol way.

S200, responding to the first excitation signal from the digital mobile device through the switch 101 to start the sound source body 2 of the audio transmission apparatus 100. Wherein the first excitation signal is arranged to include a pairing identifier for an apparatus pairing setup with each audio transmission device 100. In the present embodiment, pairing means what encoding of media data is transmitted to implement a handshake protocol and an encrypted transmission operation between the digital mobile device and an audio transmission apparatus 100, for example, a voice call.

S300, responding to the pairing identifier, receiving a second excitation signal from the digital mobile equipment through the switch 101 to start to transfer the media data. For example, in connection with fig. 3, the second actuation signal is configured to include whether the user responds to the request for the media data by, for example, entering key 22, and switch 101 may receive the media data after the user responds to the second actuation signal. In one embodiment, the media data comprises audio data modulated and encoded by the digitizing mobile device and user data, where the audio data is received and demodulated by the receiver 203 and represented by the sound source 27 as speech content recognizable by the user; the user data comprises data from a user stored in a digital mobile device (e.g., a mobile phone or cellular digital phone) or from a communication network, such as a "contact" or incoming number. In another embodiment, the user data also contains data expressed by identification data in the digital mobile device, such as whether the incoming call number is at risk. Wherein the controller 202 is configured to identify the user data and convert to visual content represented by the display circuitry 28. For example, the display circuit 28 in fig. 3 displays the type and number of a voice call, and the contents of the call time. Therefore, the user can more conveniently select to answer the voice call content.

For example, in the current embodiment, step S200 may further include S202: the clutter filtering is performed by the controller 202 or by a clutter filtering circuit 204 coupled to the controller 202 that is dedicated to audio signal clutter filtering, which according to the current embodiment may involve user-specific clutter filtering parameters that are specific to the user of the audio transmission device. These user-specific clutter filtering parameters may be determined by speech learning, based on the user's speech profile, and/or based on manually selected user settings.

When clutter filtering occurs based on user-specific clutter filtering parameters rather than general parameters, the sound of the clutter filtered audio signal may be more pleasing to the user. These user-specific clutter filtering parameters may be used for any speech-related feature and may be used in conjunction with automatic gain control and/or equalization tuning.

In the present embodiment, step S200 may further include S204: the human body sensing circuit 205 detects the position of the user relative to the current audio transmission device, and changes the audio content output by the sound source 27 or the quality of the user's voice input received by the receiver 203, such as the strength or decibel level of the sound, according to the position determined by the controller 202 and the clutter filtering parameter.

As used in this application, the terms "circuit," "device," and the like refer to all of the following: (1) hardware-only circuit implementations (such as implementations in only analog and/or digital circuit devices), and (2) combinations of circuits and software (and/or firmware), such as (as applicable): (i) a combination of control circuits or (ii) control circuits/software (including digital signal control circuits), software and portions of memory that work together to cause a device such as a mobile phone or server to perform various functions, and (3) circuitry such as micro-control circuits or micro-control circuit portions that require software or firmware for operation even if the software or firmware is not physically present.

The definition of "circuit" or "device" applies to all uses of the term in this application, including in any claims. As another example (as used in this application) the term "circuitry" may also encompass embodiments of only a control circuit (or control circuits) or control circuit portion(s) and its (or their) accompanying software and/or firmware. The term "apparatus" may also encompass (e.g., and if applicable to a particular claim element) a baseband integrated circuit or application control circuit integrated circuit for use in a similar integrated circuit in a mobile phone or server, a cellular network device, or other network device.

The foregoing detailed description has been presented in terms of algorithms and symbolic representations of operations on data bits within a device memory. These algorithmic descriptions and representations are the means used by those skilled in the data processing arts to most effectively convey the substance of their work to others skilled in the art. An algorithm is here, and generally, considered to be a self-consistent sequence of operations leading to a desired result. The operations are those requiring physical manipulations of physical quantities. Usually, though not necessarily, these quantities take the form of electrical or magnetic signals capable of being stored, transferred, combined, compared, and otherwise manipulated. It has proven convenient at times, principally for reasons of common usage, to refer to these signals as bits, values, elements, symbols, characters, terms, numbers, or the like.

The processes and displays presented herein are not inherently related to any particular apparatus or other device. Various general-purpose systems may be used with programs in accordance with the teachings herein, or it may prove convenient to construct a more specialized apparatus to perform the operations described. The required structure for a variety of these systems will appear from the description below. In addition, the present disclosure is not described with reference to any particular programming language. It will be appreciated that a variety of programming languages may be used to implement the teachings of the disclosure as described herein.

Claims (2)

1. A waterproof audio transmission device is characterized in that the waterproof audio transmission device is fixedly arranged in a wet building surface, wherein a wiring cavity for accommodating a sound source body of the audio transmission device is arranged in the building surface, the sound source body is enclosed in the wiring cavity by a cover plate matched with the wiring cavity, the sound source body is provided with a waterproof structure facing to the cover plate side and used for discharging water out of the cover plate, the waterproof structure is a concave structure arranged in the surface of the sound source body and used for discharging and guiding water flow, wherein a sound source used for playing audio contents is arranged at the bottommost part in the concave structure,

a sound hole cover plate used for being attached to the surface of the waterproof structure is further clamped between the sound source body and the cover plate, the shape of the sound hole is matched with that of the waterproof structure, and a plurality of flow guide grooves communicated with a cavity formed after the sound hole cover plate is attached to the concave structure are arranged on the bottom side of the sound hole cover plate and used for discharging water flowing into the cavity.

2. An indoor audio playback system, comprising:

the waterproof audio delivery device of claim 1, disposed within a building facade in a washroom;

a digital mobile device configured to be communicatively coupled with the audio transmission device in a wireless manner, and further comprising a switch arranged in a building surface outside the washroom and used for controlling the power on-off of the audio transmission device, wherein the switch comprises a communication circuit used for being communicatively connected with the digital mobile device, and the digital mobile device is further provided with a communication circuit used for being communicatively connected with the digital mobile device

The method for transmitting media data through an audio transmission device includes the steps of:

the audio transmission device is connected through the switch, and the communication circuit in the switch can be connected with one or more digital mobile devices in a communication mode;

responding to a first excitation signal from the digital mobile equipment through a switch to start a sound source body of an audio transmission device, wherein the first excitation signal is set to include a pairing identifier for performing equipment pairing setting on each audio transmission device;

in response to the pairing identifier, a second activation signal is received from the digitizing mobile device through a switch to turn on the transfer of the media data.

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