A method, device and storage medium for Bluetooth audio relay mixing

Abstract

The present invention discloses a method, device and storage medium for Bluetooth audio relay mixing, and belongs to the field of low-power Bluetooth and Bluetooth audio. The method mainly includes receiving an audio signal from an i1+1th audio source by wire by the i1th relay part, receiving the i1-1th mixed audio signal from the i1-1th relay part via Bluetooth, and mixing the audio signal from the i1+1th audio source and the i1-1th mixed audio signal from the i1-1th relay part to obtain the i1th mixed audio signal, wherein the value of i1 sequentially traverses natural numbers from 2 to N1; and the N1th relay part sends the N1th mixed audio signal to an audio player via Bluetooth for playback. The present invention reduces the performance requirements for the device when playing audio mixing, and increases the use scenarios of mixing.

Description

Technical Field

[0001] The present invention relates to the fields of traditional Bluetooth, low-power Bluetooth and Bluetooth audio, and in particular to a method, device and storage medium for Bluetooth audio relay mixing. Background Art

[0002] At present, when two or more audio source devices are connected to a single audio receiving device, one working method is for the audio playback device to mix and play. However, for the compatibility of Bluetooth standard specifications, special modifications are made on the audio source device side, or on the audio receiving device side, and often both need to be modified at the same time to complete the connection. For users, it is impossible to use the modified Bluetooth device with the standard Bluetooth audio device, and the product has low versatility.

[0003] Another working method is that two or more audio source devices are connected to the same Bluetooth audio transmitter, and the audio transmitter performs mixing. This method is simple, but requires two or more audio source devices to be connected to the same Bluetooth audio transmitter through a wired connection, and its use scenario is relatively limited. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention mainly provides a method, device and storage medium for Bluetooth audio relay mixing.

[0005] In order to achieve the above-mentioned object, a technical solution adopted by the present invention is: to provide a method for Bluetooth audio relay mixing, which comprises receiving an audio signal from a first audio source in a first group of audio sources by wire by a first relay part in a first group of relay parts, and receiving an audio signal from a second audio source in the first group of audio sources through Bluetooth, and mixing the audio signal from the first audio source in the first group of audio sources with the audio signal from the second audio source in the first group of audio sources to obtain a first audio signal in the first group of mixed audio signals. Mixed audio signal; the i1th relay part receives the audio signal from the i1+1th audio source by wire, and receives the i1-1th mixed audio signal from the i1-1th relay part via Bluetooth, and mixes the audio signal from the i1+1th audio source and the i1-1th mixed audio signal from the i1-1th relay part to obtain the i1th mixed audio signal, wherein the value of i1 sequentially traverses natural numbers from 2 to N1; the N1th relay part sends the N1th mixed audio signal to the audio player via Bluetooth for playback.

[0006] Another technical solution adopted by the present invention is: to provide a Bluetooth audio relay mixing device, which includes a module for receiving an audio signal from a first audio source in a first group of audio sources by wire through a first relay part in a first group of relay parts, and receiving an audio signal from a second audio source in the first group of audio sources through Bluetooth, and mixing the audio signal from the first audio source in the first group of audio sources with the audio signal from the second audio source in the first group of audio sources to obtain a first mixed audio signal in the first group of mixed audio signals; A module for receiving an audio signal from an i1+1th audio source by wire through the i1th relay part, and receiving an i1-1th mixed audio signal from an i1-1th relay part via Bluetooth, and mixing the audio signal from the i1+1th audio source and the i1-1th mixed audio signal from the i1-1th relay part to obtain an i1th mixed audio signal, wherein the value of i1 sequentially traverses natural numbers from 2 to N1; a module for sending the N1th mixed audio signal from the N1th relay part to an audio player via Bluetooth for playback.

[0007] Another technical solution adopted by the present invention is: providing a computer-readable storage medium storing computer instructions, wherein the computer instructions are operated to execute the Bluetooth audio relay mixing method in solution one.

[0008] The technical solution of the present invention can achieve the following beneficial effects: the present invention designs a method, device and storage medium for Bluetooth audio relay mixing. The method can complete the operation of mixing multiple audio sources to a single audio playback device without changing the audio source and the audio playback device, thereby reducing the performance requirements of the audio player during audio mixing playback, enhancing the versatility and compatibility of Bluetooth devices with different performances during mixing playback, and expanding the use scenarios of audio signal mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of a specific implementation of a method for Bluetooth audio relay mixing of the present invention;

[0010] Figure 2 It is a schematic diagram of another specific implementation of a Bluetooth audio relay mixing device of the present invention;

[0011] Figure 3 It is a schematic diagram of a specific embodiment of a method for Bluetooth audio relay mixing of the present invention. DETAILED DESCRIPTION

[0012] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0013] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0014] Figure 1 A specific implementation of a Bluetooth audio relay mixing method of the present invention is shown.

[0015] In this specific implementation, the Bluetooth audio relay mixing device mainly includes: a first relay part among the first group of relay parts receives an audio signal from a first audio source among the first group of audio sources by wire, and receives an audio signal from a second audio source among the first group of audio sources through Bluetooth, and mixes the audio signal from the first audio source among the first group of audio sources with the audio signal from the second audio source among the first group of audio sources to obtain a first mixed audio signal S101 among the first group of mixed audio signals.

[0016] In a specific embodiment of the present invention, Figure 3 , the first relay part is connected to the first audio source by wired connection, and the first audio source transmits its audio signal to the first relay part through the connecting line. The second audio source transmits the audio signal to the first relay part through Bluetooth. In the Bluetooth communication process of receiving the audio signal, the first relay part simulates its device information as a Bluetooth signal receiving device, and the second audio source and the first relay part complete the transmission of the audio signal through the standard Bluetooth information transmission method. The first relay part mixes the audio signal from the first audio source in the first group of audio sources and the audio signal from the second audio source in the first group of audio sources to obtain a first mixed audio signal. The first relay part simulates its device information as a Bluetooth signal transmitting device, and sends the first mixed audio signal to the second audio relay unit.

[0017] For example, the relay part with a 3.5 audio line interface is plugged into a standard microphone audio source, and the standard microphone audio source transmits its audio signal to the relay part through a connecting line; a mobile phone establishes a Bluetooth connection with the relay part, and transmits the audio signal of the mobile phone to the relay part via Bluetooth, and the relay part mixes the two audio signals to obtain a mixed signal, and sends the mixed signal to the audio system for playback via Bluetooth.

[0018] This specific embodiment can enable the relay part to obtain audio signals from different types of audio sources and mix multiple audios, thereby improving the compatibility of the mixing technology with different audio sources.

[0019] In a specific embodiment of the present invention, the S101 includes: any one of the first relay part in the first group of relay parts and the i1-th relay part has a corresponding receiving device name and transmitting device name when receiving signals and transmitting signals, respectively.

[0020] In a specific embodiment of the present invention, when the audio signal is transmitted, because the audio player is connected to the relay part, the device state of the audio player remains undiscoverable or unconnectable, and cannot be connected by the audio source. The relay part simulates a signal receiving device, is discovered and connected by the audio source, and the audio source transmits its audio signal to the relay part, and there are no additional requirements exceeding the standard Bluetooth communication during the audio signal transmission process.

[0021] For example, the relay part is connected to a speaker via Bluetooth, and the speaker can play the audio signal sent by the relay part. When connecting, the relay part simulates its device name as a device that transmits signals. After the connection is completed, the device name of the relay part simulates the device name of the Bluetooth speaker and becomes a signal receiving device. The change of the device name does not affect the Bluetooth address, security key, etc. of the relay part and the Bluetooth speaker. Since the Bluetooth speaker is already connected to the relay part, the device status of the Bluetooth speaker remains undiscoverable or unconnectable.

[0022] This specific implementation method can achieve mixing of multiple audio sources using standard Bluetooth signal transmission without changing the audio source device.

[0023] In this specific implementation, the Bluetooth audio relay mixing device further includes: receiving an audio signal from an i1+1th audio source by wire by the i1th relay part, and receiving an i1-1th mixed audio signal from an i1-1th relay part via Bluetooth, and mixing the audio signal from the i1+1th audio source and the i1-1th mixed audio signal from the i1-1th relay part to obtain an i1th mixed audio signal, wherein the value of i1 sequentially traverses natural numbers S102 from 2 to N1;

[0024] In a specific embodiment of the present invention, the second relay part is connected to the third audio source by wired connection, and the third audio source transmits its audio signal to the second relay part through the connection line. The first relay part transmits the first mixed audio signal to the second relay part through Bluetooth, and the second relay part mixes the audio signal from the third audio source in the third group of audio sources with the first mixed audio signal from the first relay part to obtain a second mixed audio signal. The second relay part simulates its device information as a Bluetooth signal transmitting device, and sends the second mixed audio signal to the third audio relay unit.

[0025] Until in the i1th relay part, the i1th relay part receives the audio signal from the i1+1th audio source by wire, and receives the i1-1th mixed audio signal from the i1-1th relay part via Bluetooth, and mixes the audio signal from the i1+1th audio source and the i1-1th mixed audio signal from the i1-1th relay part to obtain the i1th mixed audio signal.

[0026] This specific embodiment realizes the mixing of multiple audio signals through a serial mixing working mode, and can achieve the purpose of playing multiple audio sources to a single audio player without changing the audio source device and the audio playback device. Compared with the traditional audio signal mixing method, the dependence of mixing on the audio playback device and the mixing audio transmitter is improved, and the versatility of the mixing work in different usage scenarios is improved.

[0027] In a specific embodiment of the present invention, the S102 further includes: the first relay part in the first group of relay parts and any one of the i1-th relay part respectively use different Bluetooth receiving chips and Bluetooth transmitting chips to receive and transmit signals.

[0028] In a specific example of the present invention, signal interference often occurs when a traditional Bluetooth device is receiving or sending signals. This interference may cause the Bluetooth device to be unable to connect to another Bluetooth device or to be unable to maintain a connection with another Bluetooth device, resulting in a slow connection speed between the two Bluetooth devices, a weak signal strength between the two Bluetooth devices, and audio playback devices may experience audio skipping, intermittent, interrupted, static noise or buzzing when playing received audio signals. The relay part uses dual Bluetooth chips, one Bluetooth chip is responsible for receiving the audio signal, and the other Bluetooth chip is responsible for sending the mixed audio signal. The two Bluetooth chips in the relay part work independently and do not interfere with each other.

[0029] For example, the relay part decodes the audio signal received by the receiving direction link, mixes the decoded audio signal with the audio signal of the audio source connected to the relay part, encodes the mixed audio signal, and sends the mixed audio signal to the audio playing part through the sending direction link.

[0030] This specific embodiment reduces the demand for bandwidth during mixed audio transmission, reduces delays and freezes during mixed audio playback, and improves user experience; reduces Bluetooth signal interference, makes the audio played by the audio player smoother and clearer, and brings a better playback experience to users.

[0031] In a specific embodiment of the present invention, the S102 further includes: the receiving device name and the transmitting device name include names that comply with Bluetooth specification standards.

[0032] This specific embodiment does not add additional equipment or Bluetooth communication requirements to the mixing work, improves the compatibility of the mixing work, and reduces additional hardware requirements.

[0033] In this specific implementation, the Bluetooth audio relay mixing device further includes: the N1th relay part sends the N1th mixed audio signal to the audio player via Bluetooth for playing S103.

[0034] In a specific embodiment of the present invention, the N1th relay part sends the N1th mixed audio signal that has mixed all audio signals from all audio sources to the audio player via Bluetooth for playback, which eliminates the need for the audio player to have a mixing function and increases the number of audio signals to be mixed.

[0035] This specific embodiment is the basis for completing the audio mixing work.

[0036] In a specific embodiment of the present invention, the S103 includes: any one of the first relay part and the i1-th relay part in the first group of relay parts receives and transmits signals using the Bluetooth specification standard.

[0037] In a specific example of the present invention, the relay part has only two Bluetooth connections, one for receiving direction and the other for sending direction. The receiving direction receives the audio signal transmitted by the audio source, and the sending direction sends the audio signal after the received audio signal and the audio signal of the connected audio source are mixed. The relay part transmits data in accordance with the data transmission method specified in the standard Bluetooth protocol when receiving and sending data.

[0038] This specific embodiment reduces the requirements of sound mixing on devices and increases the versatility of sound mixing for different Bluetooth devices.

[0039] In a specific embodiment of the present invention, Figure 3 There can be multiple relay parts in a physical device, so when performing audio mixing, the mixing between multiple audio sources can be completed in one physical device. After completing the mixing work, the physical device can transmit the mixed audio signal to the audio player via wired or wireless means.

[0040] This specific embodiment mixes multiple audio sources through multiple relay parts in one physical device, making the mixing of the mixing device more convenient and simple.

[0041] In a specific embodiment of the present invention, a first relay part among the second group of relay parts receives an audio signal from a first audio source among the second group of audio sources by wire, and receives an audio signal from a second audio source among the second group of audio sources via Bluetooth, and mixes the audio signal from the first audio source among the second group of audio sources with the audio signal from the second audio source among the second group of audio sources to obtain a first mixed audio signal among the second group of mixed audio signals.

[0042] The i2th relay part receives the audio signal from the i2+1th audio source by wire, and receives the i2-1th mixed audio signal from the i2-1th relay part via Bluetooth, and mixes the audio signal from the i2+1th audio source and the i2-1th mixed audio signal from the i2-1th relay part to obtain the i2th mixed audio signal, wherein the value of i2 sequentially traverses natural numbers from 2 to N2.

[0043] In a specific example of the present invention, the first relay part in the second group of mixing parts receives the audio signal of the first audio source that has completed partial mixing by connecting to the relay part of the first group of mixing parts, the first relay part of the second group of mixing parts receives the audio signal from the second audio source in the second group of audio sources through Bluetooth, and the first relay part of the second group of mixing parts mixes the audio signal of the first audio source and the audio signal of the second audio source to obtain the first mixed audio signal in the second group of mixed audio signals. The first relay part in the second group of mixing parts sends the first mixed audio signal to the Bluetooth signal receiving device.

[0044] This specific embodiment realizes parallel mixing of multiple audio signals by using a relay module, thereby improving the mixing speed of audio mixing and the range of receivable audio signals.

[0045] In a specific example of the present invention, in the i2th relay part, the i2th relay part is connected to the i2+1th audio source via a connecting line, and receives the audio signal of the i2+1th audio source via the connecting line; the i2th relay part receives the i2-1th mixed audio signal of the i2-1th relay part via Bluetooth, and the i2th relay part mixes the two audio signals to obtain the mixed audio of all audio signals.

[0046] This specific implementation can achieve mixing of multiple audio sources by means of parallel mixing, thereby reducing the mixing time of the multiple audio sources and improving the mixing efficiency.

[0047] Figure 2 This is another specific implementation of a Bluetooth audio relay mixing device of the present invention.

[0048] In this specific implementation, the present invention provides a Bluetooth audio relay mixing device, and the method can achieve the technical effects and principles of implementing the Bluetooth audio relay mixing device described in any of the above examples.

[0049] In this specific implementation, the method for Bluetooth audio relay mixing mainly includes: a module 201 for receiving an audio signal from a first audio source in a first group of audio sources by a first relay part in a first group of relay parts by wire, and receiving an audio signal from a second audio source in the first group of audio sources by Bluetooth, and mixing the audio signal from the first audio source in the first group of audio sources with the audio signal from the second audio source in the first group of audio sources to obtain a first mixed audio signal in the first group of mixed audio signals; a module 202 for receiving an audio signal from a first audio source in a first group of mixed audio signals by a first relay part in a first group of relay parts; and a module 203 for receiving an audio signal from a second audio source in the first group of audio sources by a first relay part in a first group of relay parts. 1 relay part receives the audio signal from the i1+1th audio source by wire, and receives the i1-1th mixed audio signal from the i1-1th relay part through Bluetooth, and mixes the audio signal from the i1+1th audio source and the i1-1th mixed audio signal from the i1-1th relay part to obtain the i1th mixed audio signal, wherein the value of i1 sequentially traverses the natural numbers from 2 to N1; a module 202 for sending the N1th mixed audio signal to the audio player through Bluetooth for playback by the N1th relay part.

[0050] In a specific embodiment of the present invention, each functional module in the Bluetooth audio relay mixing device of the present invention can be directly in hardware, in a software module executed by a processor, or in a combination of the two.

[0051] The software modules may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from and write information to the storage medium.

[0052] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, or any combination thereof. A general-purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration. In an alternative, the storage medium may be integrated with the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In an alternative, the processor and the storage medium may reside in a user terminal as discrete components.

[0053] Another specific embodiment of the present invention is to provide a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, wherein the computer instructions are operated to execute the Bluetooth audio relay mixing method described in any embodiment.

[0054] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0055] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0056] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for mixing Bluetooth audio relay, characterized in that: include: The first relay part in the first group of relay parts receives an audio signal from a first audio source in the first group of audio sources by wire, and receives an audio signal from a second audio source in the first group of audio sources by Bluetooth, and mixes the audio signal from the first audio source in the first group of audio sources with the audio signal from the second audio source in the first group of audio sources to obtain a first mixed audio signal in the first group of mixed audio signals; The i1th relay part receives the audio signal from the i1+1th audio source by wire, and receives the i1-1th mixed audio signal from the i1-1th relay part by Bluetooth, and mixes the audio signal from the i1+1th audio source and the i1-1th mixed audio signal from the i1-1th relay part to obtain the i1th mixed audio signal, wherein the value of i1 sequentially traverses natural numbers from 2 to N1; The N1th mixed audio signal is sent to the audio player via Bluetooth by the N1th relay part for playback. The mixing of multiple audio signals is achieved through the serial mixing working mode, and the playback of multiple audio sources to a single audio player can be achieved without changing the audio source device and the audio playback device. Among them, the first relay part in the first group of relay parts and any one of the i1-th relay parts adopt dual Bluetooth chips, and respectively use different Bluetooth receiving chips and Bluetooth transmitting chips for signal reception and signal transmission; in the Bluetooth communication process of receiving audio signals, the first relay part simulates its device information as a Bluetooth signal receiving device; in the Bluetooth communication process of sending audio signals, the first relay part simulates its device information as a Bluetooth signal transmitting device.

2. The method for Bluetooth audio relay mixing as claimed in claim 1, characterized in that: The first relay part in the second group of relay parts receives an audio signal from a first audio source in the second group of audio sources by wire, and receives an audio signal from a second audio source in the second group of audio sources by Bluetooth, and mixes the audio signal from the first audio source in the second group of audio sources with the audio signal from the second audio source in the second group of audio sources to obtain a first mixed audio signal in the second group of mixed audio signals; The i2th relay part receives the audio signal from the i2+1th audio source by wire, and receives the i2-1th mixed audio signal from the i2-1th relay part by Bluetooth, and mixes the audio signal from the i2+1th audio source and the i2-1th mixed audio signal from the i2-1th relay part to obtain the i2th mixed audio signal, wherein the value of i2 sequentially traverses natural numbers from 2 to N2; The first relay part in the second group of mixing parts receives the audio signal of the first audio source that has completed partial mixing by connecting to the relay part of the first group of mixing parts, the first relay part of the second group of mixing parts receives the audio signal from the second audio source in the second group of audio sources through Bluetooth, the first relay part of the second group of mixing parts mixes the audio signal of the first audio source and the audio signal of the second audio source to obtain a first mixed audio signal in the second group of mixed audio signals, and the first relay part in the second group of mixing parts sends the first mixed audio signal to a Bluetooth signal receiving device.

3. The method for Bluetooth audio relay mixing as claimed in claim 1, characterized in that: Any one of the first relay section and the i1-th relay section in the first group of relay sections has a corresponding receiving device name and transmitting device name when receiving a signal and transmitting a signal, respectively.

4. The method for Bluetooth audio relay mixing as claimed in claim 3, characterized in that: The receiving device name and the transmitting device name include names that comply with Bluetooth specification standards.

5. The method for Bluetooth audio relay mixing as claimed in claim 1, characterized in that: Any one of the first relay part and the i1-th relay part in the first group of relay parts receives and transmits signals using the Bluetooth specification standard.

6. A Bluetooth audio relay mixing device, characterized in that: include: A module for receiving, by a first relay part among the first group of relay parts, an audio signal from a first audio source among the first group of audio sources by wire, and receiving, by Bluetooth, an audio signal from a second audio source among the first group of audio sources, and mixing the audio signal from the first audio source among the first group of audio sources with the audio signal from the second audio source among the first group of audio sources to obtain a first mixed audio signal among the first group of mixed audio signals; Used to receive the audio signal from the i1+1th audio source by wire through the i1th relay part, and receive the i1-1th mixed audio signal from the i1-1th relay part through Bluetooth, and mix the audio signal from the i1+1th audio source and the i1-1th mixed audio signal from the i1-1th relay part to obtain the i1th mixed audio signal, wherein the value of i1 sequentially traverses the modules of natural numbers from 2 to N1; The module is used to send the N1 mixed audio signal to the audio player for playback via Bluetooth by the N1 relay part. During the Bluetooth communication process of receiving the audio signal, the first relay part simulates its device information as a Bluetooth signal receiving device; during the Bluetooth communication process of sending the audio signal, the first relay part simulates its device information as a Bluetooth signal transmitting device. Through the serial mixing working mode, the mixing of multiple audio signals is realized, and the playback of multiple audio sources to a single audio player can be realized without changing the audio source device and the audio playback device.

7. A computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are operated to execute the method of Bluetooth audio relay mixing according to any one of claims 1-5.

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