Audio signal transmission control method applied to audio equipment and audio equipment

Abstract

The invention relates to the technical field of audio transmission, and discloses an audio signal transmission control method applied to audio equipment and the audio equipment.The method comprises the steps that after a main transmitter and an auxiliary transmitter are determined, the main transmitter converts a collected first audio signal to be transmitted into a first radio signal; a first radio signal is transmitted to the receiver through the radio frequency antenna; after a second audio signal which carries the same audio content as the first audio signal is determined, the auxiliary transmitter converts the second audio signal into a second radio signal and transmits the second radio signal to the receiver through a radio frequency antenna of the auxiliary transmitter; and after the first radio signal and the second radio signal are received, the receiver performs signal superposition on the first radio signal and the second radio signal, and converts a target radio signal obtained by superposition into a target audio and outputs the target audio. Therefore, the transmission distance of the audio signal can be increased while the transmission reliability of the audio signal is improved, so that the application scene of the wireless audio equipment can be expanded.

Description

Technical Field

[0001] The present invention relates to the technical field of audio transmission, and in particular to an audio signal transmission control method applied to an audio device and the audio device. Background Art

[0002] Existing wireless audio devices (such as wireless microphones) usually use a one-to-one or one-to-many communication system to achieve audio signal transmission. For the aforementioned one-to-many communication system, it is mainly implemented by multiple transmitters and a receiver. The transmitter includes a radio frequency transmission link, and the receiver includes a radio frequency receiving link. The number of radio frequency receiving links included in the receiver corresponds to the total number of radio frequency transmission links included in all transmitters.

[0003] However, practice has found that existing wireless audio devices have the problem of low radio frequency reception sensitivity, which is not conducive to increasing the transmission distance of audio signals while improving the reliability of audio signal transmission, and is further not conducive to expanding the application scenarios of wireless audio devices. Summary of the invention

[0004] The present invention provides an audio signal transmission control method applied to an audio device and an audio device, which can increase the transmission distance of the audio signal while improving the transmission reliability of the audio signal, thereby facilitating the expansion of application scenarios of the wireless audio device.

[0005] A first aspect of the present invention discloses an audio signal transmission control method applied to an audio device, wherein the audio device comprises a plurality of transmitters and at least one receiver, each of the transmitters comprises a radio frequency antenna, and the method comprises:

[0006] After determining a main transmitter and an auxiliary transmitter from the plurality of transmitters, the main transmitter collects a first audio signal to be transmitted, converts the first audio signal into a first radio signal, and transmits the first radio signal to the receiver via a radio frequency antenna of the main transmitter;

[0007] After determining a second audio signal carrying the same audio content as the first audio signal, the secondary transmitter converts the second audio signal into a second radio signal and transmits the second radio signal to the receiver via a radio frequency antenna of the secondary transmitter;

[0008] The receiver is used to, after receiving the first radio signal and the second radio signal, perform a signal superposition operation on the first radio signal and the second radio signal to obtain a target radio signal, convert the target radio signal into a target audio and output the target audio.

[0009] As an optional implementation manner, in the first aspect of the present invention, the second audio signal is determined by:

[0010] The primary transmitter sends the first audio signal to the secondary transmitter based on the previous communication connection between the primary transmitter and the secondary transmitter and the first audio signal; or

[0011] The auxiliary transmitter performs an audio signal collection operation and identifies the audio signal from the audio signal collection result corresponding to the audio signal collection operation according to a predetermined audio recognition basis; wherein the audio recognition basis includes audio keywords and / or timbre.

[0012] As an optional implementation manner, in the first aspect of the present invention, the primary transmitter is determined in the following manner:

[0013] Displaying identification information corresponding to a plurality of transmitters through an operation interface, and allowing an operator to select one of the transmitters as the main transmitter on the operation interface; or,

[0014] For any of the transmitters, the transmitter determines whether it needs to be the main transmitter according to the received type setting instruction; or,

[0015] For any of the transmitters, the transmitter analyzes whether it needs to serve as the main transmitter based on one or more of the application scenario of the audio device, the user of the transmitter, the holding state of the transmitter, the moving trajectory of the transmitter, and the audio characteristics corresponding to the user of the transmitter.

[0016] As an optional implementation manner, in the first aspect of the present invention, the secondary transmitter is determined in the following manner:

[0017] An operator selects one of the transmitters as the auxiliary transmitter on the operation interface; or,

[0018] For any of the transmitters, the transmitter determines whether it needs to be the auxiliary transmitter according to the received type setting instruction; or,

[0019] For any of the transmitters, if it does not need to serve as the main transmitter, the transmitter analyzes whether it needs to serve as the auxiliary transmitter based on one or more of its position parameters, the application scenario of the audio device, the user of the transmitter, the holding state of the transmitter, the moving trajectory of the transmitter, and the audio characteristics corresponding to the user of the transmitter.

[0020] As an optional implementation manner, in the first aspect of the present invention, the primary transmitter transmits the first radio signal to the receiver through the radio frequency antenna of the primary transmitter, comprising:

[0021] The main transmitter adjusts the phase of the first radio signal according to a predetermined signal phase adjustment method, and transmits the first radio signal after the phase adjustment to the receiver;

[0022] And, the auxiliary transmitter transmits the second radio signal to the receiver through the radio frequency antenna of the auxiliary transmitter, comprising:

[0023] The auxiliary transmitter adjusts the phase of the second radio signal according to a predetermined signal phase adjustment method, wherein the second radio signal after phase adjustment is phase-synchronized with the first radio signal after phase adjustment; and transmits the second radio signal after phase adjustment to the receiver.

[0024] As an optional implementation manner, in the first aspect of the present invention, the receiver is further used for:

[0025] Determining the first radio signal and the second radio signal to be superimposed from all received radio signals;

[0026] Determine whether the phases of the first radio signal and the second radio signal to be superimposed are synchronized. If it is determined that the phases of the two are synchronized, perform the signal superposition operation on the first radio signal and the second radio signal to obtain the target radio signal, convert the target radio signal into target audio and output the target audio.

[0027] As an optional implementation manner, in the first aspect of the present invention, the specific manner in which the receiver determines the first radio signal and the second radio signal to be superimposed from all received radio signals includes:

[0028] The receiver determines the first radio signal and the second radio signal to be superimposed from all the received radio signals according to a transmitter identifier corresponding to each received radio signal and / or a phase of each of the radio signals.

[0029] As an optional embodiment, in the first aspect of the present invention, when determining the auxiliary transmitter, for any of the transmitters, if it does not need to be the main transmitter, the position parameters of the transmitter are used to determine the distance between the transmitter and the main transmitter; or, the position parameters of the transmitter are used to determine the distance between the transmitter and the main transmitter, as well as the distance between the transmitter and the receiver and / or the radio signal transmission parameters between the transmitter and the receiver.

[0030] As an optional embodiment, in the first aspect of the present invention, for any of the transmitters, the radio signal transmission parameters between the transmitter and the receiver include a combination of one or more of the radio signal transmission direction, the radio signal transmission path, and the transmission obstacles on the radio signal transmission path.

[0031] The second aspect of the present invention discloses an audio device, which includes an audio signal acquisition and transmission device, and an audio signal receiving and output device; the audio signal acquisition and transmission device includes a first device body and multiple transmitters, and the audio signal receiving and output device includes a second device body and at least one receiver, and each of the transmitters includes a radio frequency antenna; wherein the audio device is used to realize the transmission of audio signals through the audio signal transmission control method described in any one of the first aspects of the present invention.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The audio signal transmission control method described in the present invention is applied to an audio device including multiple transmitters and at least one receiver, and each transmitter includes a radio frequency antenna. Specifically, after determining a main transmitter and an auxiliary transmitter from multiple transmitters, the main transmitter collects a first audio signal to be transmitted, converts the first audio signal into a first radio signal, and transmits the first radio signal to the receiver through the radio frequency antenna of the main transmitter; after determining a second audio signal carrying the same audio content as the first audio signal, the auxiliary transmitter converts the second audio signal into a second radio signal, and transmits the second radio signal to the receiver through the radio frequency antenna of the auxiliary transmitter. After receiving the first radio signal and the second radio signal, the receiver performs a signal superposition operation on the first radio signal and the second radio signal to obtain a target radio signal, converts the target radio signal into a target audio and outputs the target audio. It can be seen that the present invention can realize the transmission of audio signals only by using one radio frequency antenna for the transmitter. This method of cooperative transmission through the radio frequency antennas of the main and auxiliary transmitters and superposition of the received related radio signals by the receiver improves the transmission reliability of the audio signal while increasing the transmission distance of the audio signal, thereby helping to expand the application scenarios of wireless audio devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 It is a flowchart of an audio signal transmission control method applied to an audio device disclosed in an embodiment of the present invention;

[0036] Figure 2 It is a flowchart diagram of another audio signal transmission control method applied to an audio device disclosed in an embodiment of the present invention;

[0037] Figure 3 is a structural schematic diagram of an audio device disclosed in an embodiment of the present invention;

[0038] Figure 4 The diagram is a schematic diagram of the transmission principle of an audio signal disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, device, product or end including a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units inherent to these processes, methods, products or ends.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] The present invention discloses an audio signal transmission control method and an audio device applied to an audio device, which can realize audio signal transmission by using only one radio frequency antenna for the transmitter, and form a corresponding MIMO wireless communication system by coordinating the transmission of the radio frequency antennas of the main and auxiliary transmitters and superimposing the received related radio signals by the receiver, thereby improving the transmission reliability of the audio signal and increasing the transmission distance of the audio signal, thereby facilitating the expansion of the application scenarios of the wireless audio device. The following are detailed descriptions.

[0043] Embodiment 1

[0044] See also Figure 1 , Figure 1 The present invention discloses a flow chart of an audio signal transmission control method for an audio device. The audio device to which the method is applicable may include multiple transmitters and at least one receiver, and each transmitter may include one radio frequency antenna or multiple radio frequency antennas, preferably the former, which can reduce the cost of the transmitter to a certain extent, and further reduce the cost of the audio device to a certain extent. Figure 1 As shown, the audio signal transmission control method applied to the audio device may include the following steps:

[0045] 101. After determining a main transmitter and an auxiliary transmitter from a plurality of transmitters included in an audio device, the main transmitter collects a first audio signal to be transmitted, converts the first audio signal into a first radio signal, and transmits the first radio signal to a receiver through a radio frequency antenna of the main transmitter.

[0046] 102. After determining a second audio signal carrying the same audio content as the first audio signal, the auxiliary transmitter converts the second audio signal into a second radio signal, and transmits the second radio signal to the receiver through a radio frequency antenna of the auxiliary transmitter.

[0047] In an embodiment of the present invention, the audio device includes a receiver for, after receiving a first radio signal and a second radio signal, performing a signal superposition operation on the first radio signal and the second radio signal to obtain a target radio signal, converting the target radio signal into a target audio and outputting the target audio.

[0048] In an optional embodiment, the method may further include:

[0049] 103. After receiving the first radio signal and the second radio signal, the receiver performs a signal superposition operation on the first radio signal and the second radio signal to obtain a target radio signal, converts the target radio signal into a target audio, and outputs the target audio.

[0050] It should be noted that the audio signal transmission control method applied to the audio device composed of steps 101-102 describes the transmission process of the audio signal from the transmitter side included in the audio device (that is, a single angle); the audio signal transmission control method applied to the audio device composed of steps 101, 102 and 103 describes the transmission process of the audio signal from the transmitter side and the receiver side included in the audio device (that is, two angles).

[0051] It can be seen that the method described in the embodiment of the present invention can realize audio signal transmission by only using one RF antenna for the transmitter. The corresponding MIMO wireless communication system is formed by the coordinated transmission of the RF antennas of the main and auxiliary transmitters and the superposition of the related radio signals received by the receiver. This improves the transmission reliability of the audio signal and increases the transmission distance of the audio signal, which is conducive to expanding the application scenarios of wireless audio devices.

[0052] It should be particularly noted that, for an audio device whose transmitter includes multiple RF antennas, it is also possible to realize the transmission of audio signals through the audio signal transmission control method described in the embodiment of the present invention. Furthermore, when the transmitter includes multiple RF antennas, in an actual scenario, the multiple RF antennas included in the transmitter can be used as the main RF antenna and the auxiliary RF antenna according to actual needs, wherein the main RF antenna is for the audio signal that the transmitter itself needs to transmit, and the auxiliary RF antenna is for the audio signal that other transmitters need to transmit, thereby assisting in the transmission of the audio signal that other transmitters need to transmit. For a transmitter including two RF antennas, one of the RF antennas can be used as the main RF antenna to complete the transmission of the audio signal that the transmitter itself needs to transmit, and the other RF antenna can be used as the auxiliary RF antenna to assist other transmitters in completing the transmission of the audio signal, which is conducive to the rational use of wireless RF resources. It should be further noted that if multiple RF antennas of the transmitter are used as main RF antennas and auxiliary RF antennas, the transmitter can give priority to processing audio signals that need to be transmitted through the main RF antenna, or it can decide the audio signals that need to be processed first based on the priority between the audio signals that need to be transmitted by the main RF antenna and the auxiliary RF antenna.

[0053] In an optional embodiment, the second audio signal carrying the same audio content as the first audio signal is determined in the following manner:

[0054] The main transmitter is sent to the auxiliary transmitter based on the previous communication connection between the main transmitter and the auxiliary transmitter and the first audio signal, that is, after the main transmitter collects the first audio signal to be transmitted, a second audio signal that needs to be transmitted in cooperation with the auxiliary transmitter is generated based on the collected first audio signal, and the second audio signal is provided to the auxiliary transmitter through the communication connection between the main and auxiliary transmitters. Further, after the main transmitter and the auxiliary transmitter are determined, a communication connection can be established between the main transmitter and the auxiliary transmitter, and the communication connection can be a wired connection or a wireless connection;

[0055] and / or,

[0056] The auxiliary transmitter performs an audio signal acquisition operation and identifies the audio signal from the audio signal acquisition result corresponding to the audio signal acquisition operation according to a predetermined audio recognition basis; wherein the audio recognition basis includes audio keywords and / or timbre. Further, the audio recognition basis can be provided by the main transmitter to the auxiliary transmitter, or provided by the main control center of the audio device to the auxiliary transmitter.

[0057] It can be seen that this optional embodiment provides a variety of determination methods for audio signals that require auxiliary / cooperative transmission by the auxiliary transmitter, which is beneficial to improving the flexibility and reliability of determining audio signals that require auxiliary / cooperative transmission by the auxiliary transmitter, and thus is beneficial to further expanding the application scenarios of audio equipment.

[0058] In another optional embodiment, the above-mentioned main transmitter may be determined in the following manner:

[0059] The identification information corresponding to the multiple transmitters is displayed through the operation interface, and the operator selects one of the transmitters as the main transmitter on the operation interface, which is conducive to improving the convenience and flexibility of the operator in selecting the main transmitter, wherein the identification information corresponding to the transmitter may include a device identification uniquely corresponding to the transmitter, and may further include a location identification or an activity range identification or an identity identification of the user corresponding to the transmitter, etc. Further, the operation interface may be an operation interface displayed by the main control center of the audio device, or an operation interface displayed on the display screen of the corresponding transmitter, which is not limited in the embodiment of the present invention;

[0060] or,

[0061] For any transmitter, the transmitter determines whether it needs to be used as the main transmitter according to the received type setting instruction, wherein the type setting instruction may be sent by the main control center of the audio device or by other transmitters that meet the requirements, which is not limited in the embodiment of the present invention;

[0062] or,

[0063] For any transmitter, the transmitter analyzes whether it needs to be the main transmitter based on one or more of the application scenario of the audio device, the user of the transmitter, the holding state of the transmitter, the movement trajectory of the transmitter, and the audio features corresponding to the user of the transmitter. This can realize the adaptive determination of the identity type corresponding to the transmitter, improve the flexibility and efficiency of determining the main transmitter, and further expand the intelligent functions of the transmitter. For example, if the application scenario of the audio device is a lecture scenario and a transmitter is held by the speaker, the transmitter can be determined as the main transmitter.

[0064] It can be seen that this optional embodiment provides a variety of main transmitter determination methods, which is conducive to improving the flexibility of determining the main transmitter, and further conducive to further expanding the application scenarios of the audio device.

[0065] In yet another optional embodiment, the auxiliary transmitter is determined in the following manner:

[0066] The operator selects one of the transmitters as the auxiliary transmitter on the operation interface, which is conducive to improving the convenience and flexibility of the operator in selecting the auxiliary transmitter. Further, reference can be made to the implementation method of the operator selecting the main transmitter on the operation interface described in other optional embodiments, which will not be described in detail in the embodiment of the present invention; or,

[0067] For any transmitter, the transmitter determines whether it needs to be used as an auxiliary transmitter according to the received type setting instruction, and can further refer to the implementation method of determining its own role according to the type setting instruction described in other optional embodiments; or,

[0068] For any transmitter, if it does not need to be the main transmitter, the transmitter analyzes whether it needs to be an auxiliary transmitter based on one or more of its location parameters, the application scenario of the audio device, the user of the transmitter, the holding state of the transmitter, the moving trajectory of the transmitter, and the audio features corresponding to the user of the transmitter. This can realize the adaptive determination of the identity type corresponding to the transmitter, improve the determination flexibility and efficiency of the auxiliary transmitter, and can also improve the coordinated matching degree between the determined auxiliary transmitter and the main transmitter, and further expand the intelligent function of the transmitter. For example, when there are multiple transmitters to be selected as auxiliary transmitters, if a transmitter determines that it is close to the position of the main transmitter that has been determined, the transmitter can automatically determine it as an auxiliary transmitter. Further.

[0069] In this optional embodiment, further optionally, when determining the auxiliary transmitter, for any transmitter, if it does not need to be the main transmitter, the location parameter of the transmitter is used to determine the distance between the transmitter and the main transmitter; or, the location parameter of the transmitter is used to determine the distance between the transmitter and the main transmitter, and the distance between the transmitter and the receiver and / or the radio signal transmission parameters between the transmitter and the receiver. Further optionally, for any transmitter, the radio signal transmission parameters between the transmitter and the receiver may include a combination of one or more of the radio signal transmission direction, the radio signal transmission path, and the transmission obstacles on the radio signal transmission path.

[0070] It can be seen that the optional embodiment provides a variety of auxiliary transmitter determination methods, which is conducive to improving the flexibility of auxiliary transmitter determination, thereby further expanding the application scenarios of audio equipment. In addition, it is also conducive to improving the coordination matching degree between the determined auxiliary transmitter and the main transmitter.

[0071] It should be particularly noted that: when the main transmitter is determined, the main transmitter / corresponding operator / main control center of the audio device, etc. can synchronize the device identifier uniquely corresponding to the main transmitter to other transmitters; and / or, when the auxiliary transmitter is determined, the auxiliary transmitter / corresponding operator / main control center of the audio device, etc. can synchronize the device identifier uniquely corresponding to the auxiliary transmitter to other transmitters. This not only reduces unnecessary identity type determination operations of other transmitters, but also helps to improve the reliability of collaborative transmission of audio signals.

[0072] Embodiment 2

[0073] See also Figure 2 , Figure 2The flowchart of another audio signal transmission control method for an audio device disclosed in an embodiment of the present invention is shown in FIG. The audio device to which the method is applicable may include multiple transmitters and at least one receiver, and each transmitter may include one radio frequency antenna or multiple radio frequency antennas, preferably the former, which can reduce the cost of the transmitter to a certain extent, and further reduce the cost of the audio device to a certain extent. Figure 2 As shown, the audio signal transmission control method applied to the audio device may include the following steps:

[0074] 201. After a main transmitter and an auxiliary transmitter are determined from a plurality of transmitters included in an audio device, the main transmitter collects a first audio signal to be transmitted and converts the first audio signal into a first radio signal.

[0075] 202. The main transmitter adjusts the phase of the first radio signal according to a predetermined signal phase adjustment method, and transmits the first radio signal after the phase adjustment to the receiver.

[0076] 203. After determining that the second audio signal carries the same audio content as the first audio signal, the secondary transmitter converts the second audio signal into a second radio signal.

[0077] 204. The auxiliary transmitter adjusts the phase of the second radio signal according to a predetermined signal phase adjustment method, and transmits the second radio signal after the phase adjustment to the receiver.

[0078] The second radio signal after phase adjustment is phase-synchronized with the first radio signal after phase adjustment.

[0079] 205. After receiving the first radio signal and the second radio signal, the receiver performs a signal superposition operation on the first radio signal and the second radio signal to obtain a target radio signal, converts the target radio signal into a target audio, and outputs the target audio.

[0080] It can be seen that the method described in the embodiment of the present invention can realize audio signal transmission by only using one RF antenna for the transmitter. The corresponding MIMO wireless communication system is formed by the cooperative transmission of the RF antennas of the main and auxiliary transmitters and the superposition of the received related radio signals by the receiver. This improves the transmission reliability of the audio signal while increasing the transmission distance of the audio signal, which is conducive to expanding the application scenarios of wireless audio devices. In addition, when the main transmitter and the auxiliary transmitter transmit radio signals through their respective RF antennas, the phase of the radio signal can be adjusted first to ensure the phase synchronization between the radio signals, which is conducive to improving the signal superposition efficiency and signal superposition reliability on the receiver side.

[0081] In an optional embodiment, the method may further include the following operations:

[0082] The receiver determines the first radio signal and the second radio signal to be superimposed from all received radio signals; and / or,

[0083] The receiver determines whether the phases of the first radio signal and the second radio signal to be superimposed are synchronized. If it is determined that the phases of the two are synchronized, it triggers the execution of the above-mentioned signal superposition operation on the first radio signal and the second radio signal to obtain the target radio signal, convert the target radio signal into target audio and output the target audio.

[0084] It can be seen that this optional embodiment can also determine the radio signal to be superimposed and / or judge the phase of the signal to be superimposed before implementing the signal on the receiver side, which is beneficial to improving the signal superposition reliability and further beneficial to improving the collaborative transmission reliability of the audio signal.

[0085] In this optional embodiment, further optionally, the receiver determines the first radio signal and the second radio signal to be superimposed from all received radio signals, which may include:

[0086] The receiver determines the first radio signal and the second radio signal to be superimposed from all received radio signals according to the transmitter identifier corresponding to each received radio signal and / or the phase of each radio signal; and / or,

[0087] The receiver analyzes audio parameters (such as audio content and / or timbre) corresponding to the radio signal, and determines the first radio signal and the second radio signal to be superimposed from all received radio signals; and / or,

[0088] The receiver parses the cooperative identifier carried by the radio signal and determines the first radio signal and the second radio signal to be superimposed from all received radio signals, that is, the primary and secondary transmitters set corresponding cooperative identifiers for the corresponding radio signals before transmitting them.

[0089] It can be seen that this optional embodiment provides a diversified way to determine the signal to be superimposed, which is not only conducive to improving the flexibility of determining the signal to be superimposed, but also conducive to improving the accuracy of determining the signal to be superimposed, and further conducive to improving the accuracy of signal superposition, thereby improving the reliability of collaborative transmission of audio signals.

[0090] It should be noted that: when the main and auxiliary transmitters respectively adjust the phases of the first radio signal and the second radio signal, this can be achieved through existing beamforming technology, and the receiver can be configured with a corresponding diversity receiving circuit to receive the radio signals that need to be superimposed.

[0091] Taking an audio device with two transmitters and one receiver as an example, the corresponding audio signal transmission principle diagram can be as follows: Figure 4 As shown. Figure 4 As shown, transmitter A serves as the main transmitter and transmitter B serves as the auxiliary transmitter. The RF antenna of the auxiliary transmitter assists the main transmitter in transmitting radio signals 1 and 2 that carry the same audio content (such as 123) and are phase-synchronized. After receiving radio signals 1 and 2 through corresponding receiving antennas, receiver C performs corresponding signal superposition operations to obtain radio signal 3, that is, the phases of the radio signals transmitted by the main and auxiliary transmitters are adjusted through beamforming technology so that the radio signals reach the same phase when they arrive at the receiver, and then the receiver uses the superposition effect of waves to enhance the strength of the received signal.

[0092] Embodiment 3

[0093] See also Figure 3 , Figure 3 FIG. 1 is a schematic diagram of the structure of an audio device disclosed in an embodiment of the present invention. Figure 3 As shown, the audio device may include an audio signal acquisition and transmission device 301, and an audio signal receiving and output device 302, wherein the audio signal acquisition and transmission device includes a first device body and multiple transmitters, and the audio signal receiving and output device includes a second device body and at least one receiver, and each transmitter includes a radio frequency antenna. The audio device is used to transmit audio signals through any of the audio signal transmission control methods described in Embodiment 1 or the embodiments.

[0094] The device embodiments described above are only illustrative, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, i.e., they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative work.

[0095] Through the specific description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the above technical solution can be essentially or partly contributed to the prior art in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, and the storage medium includes a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically erasable rewritable read-only memory (EEPROM), a compact disc (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0096] Finally, it should be noted that the audio signal transmission control method and audio device disclosed in the embodiments of the present invention are only preferred embodiments of the present invention, which are only used to illustrate the technical solution of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be understood by those skilled in the art that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling audio signal transmission applied to an audio device, characterized in that: The audio device comprises a plurality of transmitters and at least one receiver, each of the transmitters comprises a radio frequency antenna, and the method comprises: After determining a main transmitter and an auxiliary transmitter from the plurality of transmitters, the main transmitter collects a first audio signal to be transmitted, converts the first audio signal into a first radio signal, and transmits the first radio signal to the receiver via a radio frequency antenna of the main transmitter; After determining a second audio signal carrying the same audio content as the first audio signal, the secondary transmitter converts the second audio signal into a second radio signal and transmits the second radio signal to the receiver via a radio frequency antenna of the secondary transmitter; The receiver is used to, after receiving the first radio signal and the second radio signal, perform a signal superposition operation on the first radio signal and the second radio signal to obtain a target radio signal, convert the target radio signal into a target audio and output the target audio.

2. The audio signal transmission control method applied to an audio device according to claim 1, characterized in that: The second audio signal is determined in the following manner: The primary transmitter is sent to the secondary transmitter based on the previous communication connection between the primary transmitter and the secondary transmitter and the first audio signal; or The auxiliary transmitter performs an audio signal collection operation and identifies the audio signal from the audio signal collection result corresponding to the audio signal collection operation according to a predetermined audio recognition basis; wherein the audio recognition basis includes audio keywords and / or timbre.

3. The audio signal transmission control method applied to an audio device according to claim 1 or 2, characterized in that: The primary transmitter is determined in the following manner: Displaying identification information corresponding to the plurality of transmitters through an operation interface, and allowing an operator to select one of the transmitters as the main transmitter on the operation interface; or, For any of the transmitters, the transmitter determines whether it needs to serve as the main transmitter according to the received type setting instruction; or, For any of the transmitters, the transmitter analyzes whether it needs to serve as the main transmitter based on one or more of the application scenario of the audio device, the user of the transmitter, the holding state of the transmitter, the moving trajectory of the transmitter, and the audio characteristics corresponding to the user of the transmitter.

4. The audio signal transmission control method applied to an audio device according to claim 3, characterized in that: The secondary transmitter is determined in the following manner: An operator selects one of the transmitters as the auxiliary transmitter on the operation interface; or, For any of the transmitters, the transmitter determines whether it needs to serve as the auxiliary transmitter according to the received type setting instruction; or, For any of the transmitters, if it does not need to serve as the main transmitter, the transmitter analyzes whether it needs to serve as the auxiliary transmitter based on one or more of its position parameters, the application scenario of the audio device, the user of the transmitter, the holding state of the transmitter, the moving trajectory of the transmitter, and the audio characteristics corresponding to the user of the transmitter.

5. The audio signal transmission control method applied to an audio device according to claim 4, characterized in that: The main transmitter transmits the first radio signal to the receiver through the radio frequency antenna of the main transmitter, comprising: The main transmitter adjusts the phase of the first radio signal according to a predetermined signal phase adjustment method, and transmits the first radio signal after the phase adjustment to the receiver; And, the auxiliary transmitter transmits the second radio signal to the receiver through the radio frequency antenna of the auxiliary transmitter, comprising: The auxiliary transmitter adjusts the phase of the second radio signal according to a predetermined signal phase adjustment method, wherein the second radio signal after phase adjustment is phase-synchronized with the first radio signal after phase adjustment; and transmits the second radio signal after phase adjustment to the receiver.

6. The audio signal transmission control method applied to an audio device according to claim 7, characterized in that: The receiver is also used for: Determining the first radio signal and the second radio signal to be superimposed from all received radio signals; Determine whether the phases of the first radio signal and the second radio signal to be superimposed are synchronized. If it is determined that the phases of the two are synchronized, perform the signal superposition operation on the first radio signal and the second radio signal to obtain the target radio signal, convert the target radio signal into target audio and output the target audio.

7. The audio signal transmission control method applied to an audio device according to claim 6, characterized in that: The specific manner in which the receiver determines the first radio signal and the second radio signal to be superimposed from all received radio signals includes: The receiver determines the first radio signal and the second radio signal to be superimposed from all the received radio signals according to a transmitter identifier corresponding to each received radio signal and / or a phase of each of the radio signals.

8. The audio signal transmission control method for an audio device according to claim 4, characterized in that: When determining the auxiliary transmitter, for any transmitter, if it is not required to be the main transmitter, the location parameter of the transmitter is used to determine the distance between the transmitter and the main transmitter; Alternatively, the location parameter of the transmitter is used to determine the distance between the transmitter and the main transmitter, the distance between the transmitter and the receiver and / or the radio signal transmission parameter between the transmitter and the receiver.

9. The audio signal transmission control method for an audio device according to claim 8, characterized in that: For any of the transmitters, the radio signal transmission parameters between the transmitter and the receiver include a combination of one or more of a radio signal transmission direction, a radio signal transmission path, and transmission obstacles on the radio signal transmission path.

10. An audio device, comprising an audio signal acquisition and transmission device, and an audio signal receiving and output device, characterized in that: The audio signal acquisition and transmission device includes a first device body and a plurality of transmitters, the audio signal receiving and output device includes a second device body and at least one receiver, and each of the transmitters includes a radio frequency antenna; Wherein, the audio device is used to realize the transmission of audio signals through the audio signal transmission control method according to any one of claims 1-9.

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