WO2020155090A1 - 音频的蓝牙传输方法、蓝牙收发器及计算机可读存储介质 - Google Patents

音频的蓝牙传输方法、蓝牙收发器及计算机可读存储介质 Download PDF

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Publication number
WO2020155090A1
WO2020155090A1 PCT/CN2019/074376 CN2019074376W WO2020155090A1 WO 2020155090 A1 WO2020155090 A1 WO 2020155090A1 CN 2019074376 W CN2019074376 W CN 2019074376W WO 2020155090 A1 WO2020155090 A1 WO 2020155090A1
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Prior art keywords
type
bluetooth
audio
interface
signal
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Application number
PCT/CN2019/074376
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English (en)
French (fr)
Inventor
侯田
邓超
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深圳傲智天下信息科技有限公司
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Publication of WO2020155090A1 publication Critical patent/WO2020155090A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • This application relates to the field of Bluetooth technology, and in particular to a Bluetooth transmission method of audio, a Bluetooth transceiver and a computer-readable storage medium.
  • the current Type-C interface headset can only be connected to a mobile phone or other terminal in a wired way to listen to music, and cannot transmit and play audio wirelessly like ordinary Bluetooth headsets. This is not very convenient for users and reduces the user experience.
  • the main purpose of this application is to provide a Bluetooth audio transmission method, a Bluetooth transceiver, and a computer-readable storage medium, which aims to solve the technical problem that the existing Type-C interface headset cannot perform wireless data transmission and playback.
  • the Bluetooth transmission method for audio is applied to a Bluetooth transceiver.
  • the Bluetooth transceiver includes a Bluetooth module and a Universal Serial Bus Type-C interface.
  • Bluetooth transmission methods include:
  • the terminal audio signal is converted into the corresponding Type-C protocol audio data, and the Type-C protocol audio is transmitted through the Type-C interface
  • the data is output to the first Type-C device for audio playback by the first Type-C device.
  • the Bluetooth module includes a low-power Bluetooth module
  • the terminal audio signal is converted into corresponding Type-C protocol audio data, and the Type-C interface
  • the method further includes:
  • the voice control signal is sent to the audio sending terminal through the Bluetooth low energy module, so that the audio sending terminal can analyze and process the voice control signal.
  • the Bluetooth transmission method for audio further includes:
  • the Type-C interface has a second Type-C device inserted, the device audio signal sent by the second Type-C device is received through the Type-C interface, and the device audio signal is converted into corresponding audio Format audio digital signal;
  • the audio digital signal is sent to the signal receiving terminal in a Bluetooth manner to realize Bluetooth signal forwarding.
  • the step of converting the audio signal of the device into an audio digital signal of a corresponding audio format includes:
  • a target codec algorithm is determined according to the type of the codec protocol, and the device audio signal is converted into an audio digital signal of a corresponding audio format according to the target codec algorithm.
  • the terminal audio signal is converted into corresponding Type-C protocol audio data, and all the audio data is converted through the Type-C interface.
  • the method further includes:
  • the Bluetooth transceiver further includes a 3.5mm interface and a power amplifier module,
  • the method further includes:
  • the terminal audio signal is processed through the power amplifier module to obtain an analog audio signal, and the analog audio signal is output to the 3.5mm interface through the 3.5mm interface.
  • mm device for audio playback by the 3.5mm device.
  • the method further includes:
  • the equalizer parameter of the Bluetooth transceiver is set according to the equalizer setting instruction.
  • the method further includes:
  • the Bluetooth transceiver includes a Bluetooth module and a Universal Serial Bus Type-C interface, and also includes a processor, a memory, and a parallel device stored on the memory.
  • a Bluetooth transmission program that can be executed by the processor, wherein when the Bluetooth transmission program is executed by the processor, the following steps are implemented:
  • the terminal audio signal is converted into the corresponding Type-C protocol audio data, and the Type-C protocol audio is transmitted through the Type-C interface
  • the data is output to the first Type-C device for audio playback by the first Type-C device.
  • the present application also provides a computer-readable storage medium on which a Bluetooth transmission program is stored, and when the Bluetooth transmission program is executed by a processor, the following steps are implemented:
  • the Bluetooth transceiver When the Bluetooth transceiver is in the Bluetooth receiving mode, establish a Bluetooth connection with the audio sending terminal through the Bluetooth module of the Bluetooth transceiver;
  • the terminal audio signal is converted into the corresponding Type-C protocol audio data, and the Type-C protocol audio is transmitted through the Type-C interface
  • the data is output to the first Type-C device for audio playback by the first Type-C device.
  • the Bluetooth transceiver receives the audio signal sent by the audio sending terminal in Bluetooth mode, and then sends the audio signal to the Type-C connected to the Bluetooth transceiver, thereby combining the Bluetooth transceiver with the Type-C headset to realize Type-C
  • the Bluetooth headset function realizes the Bluetooth wireless transmission of the Type-C headset, which provides convenience for users and helps improve user experience.
  • FIG. 1 is a schematic flowchart of a first embodiment of a Bluetooth transmission method for audio in this application
  • FIG. 2 is a schematic flowchart of a second embodiment of a Bluetooth transmission method for audio in this application
  • Fig. 3 is a schematic flowchart of a third embodiment of a Bluetooth transmission method for audio in this application.
  • the Bluetooth transmission method of audio involved in the embodiments of the present application is mainly applied to a Bluetooth transceiver.
  • the Bluetooth transceiver may include a processor; wherein, the processor may be implemented by a highly integrated chip, and the MCU (Microcontroller Unit, micro control unit) and DSP (Digital Signal Processing, digital signal processing) functions are integrated (of course, other functions can also be integrated); among them, MCU is mainly used to implement control functions, and DSP is mainly used to implement digital signal processing.
  • the Bluetooth transceiver also includes a Bluetooth module.
  • the Bluetooth module can be integrated in the processor or an independent part.
  • the Bluetooth module includes dual-mode Bluetooth, that is, the basic rate/enhanced rate Bluetooth module (BR/EDR) and low power Bluetooth module (BLE).
  • the Bluetooth transceiver further includes a memory; as a computer-readable storage medium, the memory may also include an operating system, a network communication module, and a Bluetooth transmission program.
  • the network communication module is mainly used to connect to and communicate with the terminal.
  • the Bluetooth transceiver also includes Universal Serial Bus Type-C interface, OTG IC (OTG chip), DC/DC Voltage Regulator (Voltage Regulator), Battery Part, RGB Part, Amplifier Part, Audio Acquisition Device (such as Micphone), ADC (Analog-to-Digital Converter), 3.5mm interface, Key part and Antenna part.
  • the Type-C interface is a multiplexing interface for audio input and output, and also serves as a charging interface, through which the Type-C earphones with the inserted Type-C interface can be powered; OTG The IC is used to provide a power supply channel for the earphone inserted into the Type-C port.
  • the Type-C earphone When the Type-C earphone is inserted, the Type-C earphone needs to be powered by the OTG IC.
  • the OTG IC is used to identify external devices that need power supply and provide power supply paths for external devices.
  • the power supply is provided by DC/DC Voltage Regulator, DC/DC Voltage Regulator can boost the battery voltage to a certain level (such as 5V), and then pass OTG
  • the IC supplies power to the externally connected Type-C earphones.
  • the Battery part it is mainly used to power the Bluetooth transceiver.
  • the RGB part is used to indicate the working status of the Bluetooth transceiver.
  • the Amplifier part is mainly used to convert audio signals.
  • the audio collection device is used to collect voice signals.
  • ADC is mainly used to realize the analog-to-digital conversion function.
  • the 3.5mm interface is an analog audio input and output multiplexing interface, and can also support the transmission of microphone signals and key information inserted into the audio cable.
  • the key part is mainly used to control the working state of the Bluetooth transceiver.
  • the Antenna part is mainly used for the mutual conversion of electrical signals and wireless electromagnetic wave signals to realize the conversion function of wireless transmission and reception.
  • the hardware structure of the above-mentioned Bluetooth transceiver does not constitute a limitation to this application.
  • the Bluetooth transceiver may include more or less components than the above-mentioned examples, or combine certain components, or different components.
  • the layout of the components may include more or less components than the above-mentioned examples, or combine certain components, or different components.
  • the processor of the Bluetooth transceiver can call the Bluetooth transmission program stored in the memory and perform the following operations:
  • the terminal audio signal is converted into the corresponding Type-C protocol audio data, and the Type-C protocol audio is transmitted through the Type-C interface
  • the data is output to the first Type-C device for audio playback by the first Type-C device.
  • the Bluetooth module includes a low-power Bluetooth module
  • the processor of the Bluetooth transceiver can call the Bluetooth transmission program stored in the memory and perform the following operations:
  • the voice control signal is sent to the audio sending terminal through the Bluetooth low energy module, so that the audio sending terminal can analyze and process the voice control signal.
  • the processor of the Bluetooth transceiver can call the Bluetooth transmission program stored in the memory and perform the following operations:
  • the Type-C interface has a second Type-C device inserted, the device audio signal sent by the second Type-C device is received through the Type-C interface, and the device audio signal is converted into corresponding audio Format audio digital signal;
  • the audio digital signal is sent to the signal receiving terminal in a Bluetooth manner to realize Bluetooth signal forwarding.
  • the step of converting the audio signal of the device into an audio digital signal of a corresponding audio format includes:
  • a target codec algorithm is determined according to the type of the codec protocol, and the device audio signal is converted into an audio digital signal of a corresponding audio format according to the target codec algorithm.
  • the processor of the Bluetooth transceiver can call the Bluetooth transmission program stored in the memory and perform the following operations:
  • the Bluetooth transceiver further includes a 3.5mm interface and a power amplifier module, and the processor of the Bluetooth transceiver can call the Bluetooth transmission program stored in the memory and perform the following operations:
  • the terminal audio signal is processed through the power amplifier module to obtain an analog audio signal, and the analog audio signal is output to the 3.5mm interface through the 3.5mm interface.
  • mm device for audio playback by the 3.5mm device.
  • the processor of the Bluetooth transceiver can call the Bluetooth transmission program stored in the memory and perform the following operations:
  • the equalizer parameter of the Bluetooth transceiver is set according to the equalizer setting instruction.
  • the processor of the Bluetooth transceiver can call the Bluetooth transmission program stored in the memory and perform the following operations:
  • This application provides a Bluetooth transmission method for audio.
  • Fig. 1 is a schematic flowchart of a first embodiment of a Bluetooth transmission method for audio in this application.
  • the Bluetooth transmission method of audio in this embodiment is applied to a Bluetooth transceiver.
  • the Bluetooth transceiver includes a Bluetooth module and a Universal Serial Bus Type-C interface.
  • the Bluetooth transmission method of audio includes:
  • Step S10 when in the Bluetooth receiving mode, establish a Bluetooth connection with the audio sending terminal through the Bluetooth module;
  • the wearable device market has developed rapidly, and the types of earphones are also emerging in endlessly.
  • the 3.5mm audio output interface of mobile phones was gradually cancelled, and the Type-C audio output interface gradually replaced the 3.5mm audio output interface.
  • the current Type-C interface headset can only be connected to a mobile phone or other terminal in a wired way to listen to music, and cannot transmit and play audio wirelessly like ordinary Bluetooth headsets. This is not very convenient for users and reduces the user experience.
  • a Bluetooth audio transmission method is proposed in this embodiment.
  • the audio signal sent by the audio sending terminal in Bluetooth is received through a Bluetooth transceiver, and then the audio signal is sent to the Type-C connected to the Bluetooth transceiver.
  • the Bluetooth transceiver and the Type-C headset are combined to realize the Type-C Bluetooth headset function and realize the Bluetooth wireless transmission of the Type-C headset, which provides convenience for users and helps improve user experience.
  • the Bluetooth transmission method of audio in this embodiment is applied to a Bluetooth transceiver, and the Bluetooth transceiver includes a Bluetooth module and a universal serial bus Type-C interface.
  • the Bluetooth transceiver After the Bluetooth transceiver is turned on, the user can trigger the corresponding receiving mode switching command through the relevant function buttons (Key part) of the Bluetooth transceiver; when the Bluetooth transceiver receives the receiving mode switching command, it will enter the Bluetooth receiving mode.
  • the Bluetooth transceiver When in the Bluetooth receiving mode, the Bluetooth transceiver will establish a Bluetooth connection with the corresponding audio sending terminal through the Bluetooth module; for the audio sending terminal, it can be a terminal with Bluetooth function such as a mobile phone, a tablet, a handheld computer, a notebook, etc.
  • the audio sending terminal in this embodiment uses a mobile phone as an example for description.
  • the Bluetooth transceiver in order to indicate the current status (mode) of the Bluetooth transceiver, can also be characterized by a certain indicator, for example, when the Bluetooth transceiver is turned on, but no Bluetooth is established with any terminal When connected, the indicator light can be flashing; when the Bluetooth transceiver is in the Bluetooth receiving mode and a Bluetooth connection is established with the mobile phone (audio sending terminal), the indicator light can be always on; through the indicator light, you can It is convenient for users to intuitively understand the current status of the Bluetooth transceiver.
  • Step S20 receiving the terminal audio signal sent by the audio sending terminal in Bluetooth mode
  • the Bluetooth transceiver when the Bluetooth transceiver establishes a Bluetooth connection with the mobile phone (audio sending terminal) in the Bluetooth receiving mode, it can receive the terminal audio signal sent by the mobile phone in Bluetooth via the Bluetooth module.
  • Step S30 judging whether the Type-C interface has a first Type-C device inserted
  • the Bluetooth transceiver when the Bluetooth transceiver receives the terminal audio signal sent by the mobile phone in Bluetooth, it will determine whether the Type-C interface of the Bluetooth transceiver has a first Type-C device inserted.
  • the first Type-C device it may include Type-C headsets with Type-C interface types, Type-C speakers, and other devices.
  • the first Type-C device is described by taking Type-C headsets as an example. , That is, the Bluetooth transceiver will determine whether the Type-C interface has a Type-C headset inserted.
  • Step S40 If the Type-C interface has a first Type-C device inserted, the terminal audio signal is converted into corresponding Type-C protocol audio data, and the Type-C interface The C-protocol audio data is output to the first Type-C device for audio playback by the first Type-C device.
  • the Bluetooth transceiver determines that the current Type-C interface has a Type-C headset inserted, the Bluetooth transceiver demodulates the terminal audio signal obtained in step S20 to obtain the relevant audio signal, and then passes the internal MCU ( Microcontroller Unit, micro-control unit) or other functional modules to re-encode it and convert it into Type-C protocol audio data, and then output the Type-C protocol audio data to the Bluetooth transceiver through the Type-C interface If the user is wearing the Type-C headset, he can hear the related audio through the Type-C headset, or it can be considered that the user is listening through the Type-C headset through Bluetooth. To the audio played by the mobile phone, the Bluetooth audio transmission of the Type-C headset is realized.
  • MCU Microcontroller Unit, micro-control unit
  • the Bluetooth transceiver in this embodiment can be used in combination with Type-C earphones to realize the Bluetooth audio transmission function of Type-C earphones; it can also be combined with related devices with a 3.5mm interface to realize 3.5mm
  • the Bluetooth audio transmission function of the related device of the interface wherein the related device of the 3.5mm interface is described in the form of a 3.5mm headset (that is, the plug-in cord of the headset is 3.5mm).
  • the Bluetooth transceiver in this embodiment also includes a 3.5mm interface and an amplifier module (Amplifier); when the Bluetooth transceiver receives the terminal audio signal sent by the mobile phone, it will demodulate the corresponding audio signal, and then divide it into two Output; one of them is analog signal output, the analog signal is output to the Amplifier part, the Amplifier part completes the conversion and power amplification of the analog signal to obtain the analog audio signal, and then output the analog audio signal to the 3.5mm earphone, this When you plug in the earphone into the 3.5mm interface, you can hear the audio signal from the mobile phone to realize the Bluetooth audio transmission of the 3.5mm earphone; the other audio signal is as mentioned above, through the internal MCU Unit, micro-control unit) or other functional modules to re-encode it and convert it into Type-C protocol audio data, and then output the Type-C protocol audio data to the Bluetooth transceiver through the Type-C interface
  • the Type-C headset connected to the connector.
  • the Bluetooth transceiver when the Bluetooth transceiver receives the terminal audio signal sent by the mobile phone, it will determine whether the Type-C interface has a Type-C earphone inserted; if the Type-C interface has a Type-C earphone inserted, The audio will be output to the Type-C headset with the Type-C interface first, that is, step S40 is performed; and if the Type-C interface has no Type-C headset plugged in, the Bluetooth transceiver will further determine whether the 3.5mm interface has a 3.5mm headset insert.
  • the terminal audio signal is processed through the power amplifier module to obtain an analog audio signal, and the analog audio signal is output to the 3.5mm interface through the 3.5mm interface.
  • mm device for audio playback by the 3.5mm device.
  • the Bluetooth transceiver will demodulate the corresponding audio signal according to the received terminal audio signal, and complete the conversion and power of the analog signal through the power amplifier module (Amplifier) Amplify to obtain an analog audio signal, and then output the analog audio signal to a 3.5mm earphone through a 3.5mm interface for audio playback by the 3.5mm device.
  • the power amplifier module Amplify
  • the Bluetooth transceiver will not process the terminal audio signal, thereby reducing power consumption; of course, the Bluetooth transceiver can also send out related prompt messages to prompt the user to insert the headset, such as through The indicator light prompts, and the voice prompt tone is emitted.
  • the user when the Type-C earphone is inserted into the Type-C interface of the Bluetooth transceiver and the Bluetooth transceiver outputs audio to the Type-C earphone, the user can also use the relevant function buttons on the Type-C to pair Audio playback is controlled.
  • the Bluetooth transceiver when the user needs to control the audio playback, he can operate the control keys of the Type-C headset, and the Type-C headset sends the corresponding playback control to the Bluetooth transceiver through the built-in communication chip according to the user's operation Instruction; when the Bluetooth transceiver receives the playback control instruction, it will recognize the button information in the playback control instruction to determine the control type, and perform corresponding playback control operations according to the control type, such as pause/resume Play, volume up/down, etc.
  • the Bluetooth transceiver is connected to a 3.5mm headset
  • the corresponding playback control can also be performed; for example, when the 3.5mm interface is plugged into the 3.5mm headset cable, the microphone signal is connected to the ADC interface of the Bluetooth chip at the same time, through The detection of the ADC interface level can determine whether there is a button pressed on the audio line; when the user presses the relevant control button of the 3.5mm audio line, the Bluetooth transceiver will determine the pressed button according to the detected voltage, and obtain The received button information determines the corresponding operation of the button, and controls the Bluetooth part to perform the corresponding operation.
  • the Bluetooth transceiver can also integrate related equalizer functions.
  • the specific parameters of the equalizer function can be passed Mobile phone (audio sending terminal) for setting.
  • the user can set the equalizer EQ parameters of the Bluetooth transceiver on the mobile phone-related setting interface (such as app interface, system setting interface, etc.).
  • the mobile phone will send to the Bluetooth transceiver The corresponding equalizer setting instruction.
  • the Bluetooth transceiver When the Bluetooth transceiver receives the equalizer setting instruction, it will extract the specific setting content (equalizer EQ parameter) of the equalizer setting instruction to set the local equalizer, so that the mobile phone can adjust the Bluetooth transceiver The function of the equalizer. It is worth noting that, since the amount of data involved in the equalizer setting instruction is generally small, in order to reduce power consumption, the sending and receiving of the equalizer setting instruction may be implemented through a Bluetooth low energy module (BLE).
  • BLE Bluetooth low energy module
  • the Bluetooth transceiver can also be continuously upgraded through firmware upgrades; and the firmware used for the upgrade can also be obtained through the audio sending terminal.
  • the mobile phone can download and obtain the target firmware used to upgrade the Bluetooth transceiver from the network in advance, and then send the corresponding firmware upgrade instruction to the Bluetooth transceiver according to the target firmware; of course, the mobile phone and the Bluetooth transceiver can be through low power For two-way communication using Bluetooth (BLE), when the Bluetooth transceiver receives the firmware upgrade command, it will return the corresponding reception success message to the mobile phone.
  • BLE Bluetooth
  • the mobile phone can confirm that the Bluetooth transceiver is in the upgrade mode after receiving the successful reception message; at this time, the mobile phone can select the target firmware that needs to be upgraded and send the target firmware to the Bluetooth transceiver; the Bluetooth transceiver will receive the message sent by the mobile phone Target firmware, you can upgrade the firmware based on the target firmware.
  • the Bluetooth transceiver can also perform firmware upgrades without directly connecting to the network, realizing an over-the-air upgrade (OTA), which is beneficial to the continuous improvement of the Bluetooth transceiver function.
  • OTA over-the-air upgrade
  • the Bluetooth transceiver when the Bluetooth transceiver is in the Bluetooth receiving mode, it establishes a Bluetooth connection with the audio sending terminal through the Bluetooth module; receives the terminal audio signal sent by the audio sending terminal in Bluetooth mode; determines whether the Type-C interface has The first Type-C device is plugged in; if the Type-C interface has a first Type-C device plugged in, the terminal audio signal is converted into corresponding Type-C protocol audio data and passed through the Type-C interface Outputting the Type-C protocol audio data to the first Type-C device for audio playback by the first Type-C device.
  • this embodiment receives the audio signal sent by the audio sending terminal in Bluetooth mode through the Bluetooth transceiver, and then sends the audio signal to the Type-C connected to the Bluetooth transceiver, thereby connecting the Bluetooth transceiver with the Type-C headset
  • the combination realizes the Type-C Bluetooth headset function and realizes the Bluetooth wireless transmission of the Type-C headset, which provides convenience for users and helps improve user experience.
  • Fig. 2 is a schematic flowchart of a second embodiment of a Bluetooth transmission method for audio in this application.
  • the Bluetooth module includes a Bluetooth low energy module, and after the step S40, it further includes:
  • Step S50 Collect the user's voice control signal through the device microphone of the first Type-C device, or collect the user's voice control signal through the transceiver microphone of the Bluetooth transceiver;
  • the Bluetooth transceiver may also send a corresponding voice control signal to the audio sending terminal (mobile phone) connected to the Bluetooth, so as to perform voice control on the audio sending terminal.
  • the user can trigger the corresponding voice collection instruction by touching the relevant button or area of the Type-C headset; when the Type-C headset receives the voice collection instruction, it will pass the Type-C headset
  • the headset microphone on the headset collects the user’s voice control signal; then transmits the voice control signal to the Bluetooth transceiver; of course, if the Type-C headset does not have a microphone, it can also be used with the microphone of the Bluetooth transceiver.
  • Voice control signal collection the user can trigger the corresponding voice collection instruction by touching the relevant button or area of the Type-C headset; when the Type-C headset receives the voice collection instruction, it will pass the Type-C headset
  • the headset microphone on the headset collects the user’s voice control signal; then transmits the voice control signal to the Bluetooth transceiver; of course, if the Type-C headset does not have a
  • Step S60 Send the voice control signal to the audio sending terminal through the Bluetooth low energy module, so that the audio sending terminal can analyze and process the voice control signal.
  • the Bluetooth transceiver when it obtains the user's voice control signal, it will send the voice control signal to the mobile phone through the Bluetooth module, so as to perform voice control on the mobile phone.
  • the mobile phone receives the voice control signal, it will parse the voice control signal to determine the meaning of the user’s words, and then perform corresponding processing based on the meaning, or perform corresponding operations, such as answering the call to achieve a Bluetooth call and changing the phone’s A certain setting, playing a certain song, controlling home appliances, etc.
  • the process of analyzing the voice control signal by the mobile phone may be that the mobile phone sends the voice control signal to the cloud, and the analysis result is returned to the mobile phone after the cloud analysis is completed, and the mobile phone performs corresponding operations according to the analysis result.
  • the Bluetooth transceiver in this embodiment adopts dual-mode Bluetooth, which includes a basic rate/enhanced rate Bluetooth module (BR/EDR) and a Bluetooth low energy module (BLE); and the Bluetooth transceiver When sending a voice control signal to a mobile phone, since the data volume of the voice control signal is generally small, it can be sent through a BLE module, thereby reducing power consumption and extending battery life.
  • BLE Bluetooth low energy module
  • FIG. 3 is a schematic flowchart of a third embodiment of a Bluetooth transmission method for audio in this application.
  • the Bluetooth transmission method for audio further includes:
  • Step S70 When receiving the transmission mode switching instruction, enter the Bluetooth transmission mode according to the transmission mode switching instruction, and establish a Bluetooth connection with the signal receiving terminal through the Bluetooth module;
  • the Bluetooth transceiver can also connect to a terminal without Bluetooth function through the Type-C interface (or 3.5mm interface), and forward the input signal of the non-Bluetooth terminal to other terminals through the Bluetooth transceiver.
  • Bluetooth slave devices such as Bluetooth headsets, Bluetooth speakers, etc.
  • the user can trigger the transmission mode switching instruction through the relevant function button on the Bluetooth transceiver; when the Bluetooth transceiver receives the transmission mode switching instruction, it will enter the Bluetooth transmission mode and communicate with the corresponding signal receiving terminal through the Bluetooth module (Bluetooth slave device) Establish a Bluetooth connection.
  • the signal receiving terminal Bluetooth headset is taken as an example for description, that is, the Bluetooth transceiver will establish a Bluetooth connection with the Bluetooth headset.
  • Step S80 Judge whether the Type-C interface has a second Type-C device inserted
  • the Bluetooth transceiver will also determine whether a Type-C device is inserted in the Type-C interface. It is worth noting that the Type-C interface at this time is mainly used as a signal input port.
  • Step S90 If the Type-C interface has a second Type-C device inserted, receive the device audio signal sent by the second Type-C device through the Type-C interface, and convert the device audio signal Is the audio digital signal corresponding to the audio format;
  • the Type-C device when a Type-C device is inserted into the Type-C interface, the Type-C device can be considered as a signal input device.
  • the Type-C device is described as a tablet computer.
  • the Bluetooth transceiver will receive the device audio signal sent by the tablet computer through the Type-C interface, and then perform corresponding decoding conversion and other processing on the device audio signal to obtain the audio digital signal of the corresponding audio format.
  • high-definition sound quality compression and decompression algorithms can be introduced into the audio signal encoding and decoding methods of the Bluetooth transceiver, such as LDAC encoding and decoding methods, HWA encoding and decoding, aptX-HD encoding and decoding and other high-definition lossless sound quality encoding and decoding protocols, regardless of the When the Bluetooth transceiver is in transmit or receive mode, the corresponding encoding and decoding process can be performed according to the encoding and decoding protocol supported by the Bluetooth connection object.
  • the Bluetooth transceiver will obtain the protocol function information of the Bluetooth headset, and determine the codec protocol type supported by the Bluetooth headset according to the protocol function information; when determining the codec protocol type supported by the Bluetooth headset, the Bluetooth transceiver will The codec protocol type determines the target codec algorithm, and performs corresponding decoding conversion and other processing on the device audio signal according to the target codec algorithm to obtain the audio digital signal of the corresponding audio format.
  • Step S100 Send the audio digital signal to the signal receiving terminal in a Bluetooth manner, so as to realize Bluetooth signal forwarding.
  • the Bluetooth transceiver when the audio digital signal is obtained, can send the audio digital signal to the Bluetooth headset in a Bluetooth mode, thereby realizing the Bluetooth forwarding function of Type-C input audio.
  • the Bluetooth transceiver in this embodiment may also be a device with a 3.5mm interface as an audio input device. That is, the Bluetooth transceiver is connected with another audio device through its own 3.5mm interface, and the audio device inputs audio signals to the Bluetooth transceiver through the 3.5mm interface; the Bluetooth transceiver collects 3.5 through the ADC part (analog-to-digital converter part) The analog signal of mm audio cable is converted into a digital signal through ADC, and then the digital signal is transmitted to the Bluetooth module, which is re-encoded into a Bluetooth audio signal by the Bluetooth module and then sent to the Bluetooth headset connected by Bluetooth.
  • ADC part analog-to-digital converter part
  • this application also provides a computer-readable storage medium.
  • a Bluetooth transmission program is stored on the computer-readable storage medium of the present application.
  • the Bluetooth transmission program is executed by the processor, the steps of the Bluetooth transmission method for audio as described above are realized.

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Abstract

本申请公开了一种音频的蓝牙传输方法、蓝牙收发器和计算机可读存储介质，所述音频的蓝牙传输方法包括：蓝牙收发器处于蓝牙接收模式时，通过蓝牙模块与音频发送终端建立蓝牙连接；接收所述音频发送终端以蓝牙方式发送的终端音频信号；判断Type-C接口是否有第一Type-C设备插入；若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放。

Description

音频的蓝牙传输方法、蓝牙收发器及计算机可读存储介质
本申请要求于 2019 年 1 月 29 日提交中国专利局、申请号为 201910089995.6 、发明名称为' 音频的蓝牙传输方法、蓝牙收发器及计算机可读存储介质 '的中国专利申请的优先权，其全部内容通过引用结合在申请中。
技术领域
本申请涉及蓝牙技术领域，尤其涉及一种音频的蓝牙传输方法、蓝牙收发器及计算机可读存储介质。
背景技术
随着技术的不断进步，可穿戴设备市场得到迅猛发展，耳机的种类也层出不穷。其中，手机的3.5mm音频输出接口逐渐被取消，Type-C音频输出接口逐渐取代了3.5mm音频输出接口。通过Type-C接口输出数字音频，在Type-C端做高清的数字解码，即可输出高清无损的Type-C音频。
但是，目前的Type-C接口的耳机只能通过有线的方式连接到手机或者其他终端上才能听歌，不能像普通的蓝牙耳机般通过无线的方式进行音频传输和播放。这对用户而言不是很方便，降低了用户的使用体验。
发明内容
本申请的主要目的在于提供一种音频的蓝牙传输方法、蓝牙收发器及计算机可读存储介质，旨在解决现有Type-C接口耳机无法进行无线数据传输和播放的技术问题。
为实现上述目的，本申请提供一种音频的蓝牙传输方法，所述音频的蓝牙传输方法应用于蓝牙收发器，所述蓝牙收发器包括蓝牙模块和通用串行总线Type-C接口，所述音频的蓝牙传输方法包括：
在处于蓝牙接收模式时，通过所述蓝牙模块与音频发送终端建立蓝牙连接；
接收所述音频发送终端以蓝牙方式发送的终端音频信号；
判断所述Type-C接口是否有第一Type-C设备插入；
若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放。
可选地，所述蓝牙模块包括低功耗蓝牙模块，
所述若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放的步骤之后，还包括：
通过所述第一Type-C设备的设备麦克风采集用户的语音控制信号，或通过所述蓝牙收发器的收发器麦克风采集用户的语音控制信号；
通过所述低功耗蓝牙模块将所述语音控制信号发送至所述音频发送终端，以供所述音频发送终端对所述语音控制信号进行解析和处理。
可选地，所述音频的蓝牙传输方法还包括：
在接收到发射模式切换指令时，根据所述发射模式切换指令进入蓝牙发射模式，并通过所述蓝牙模块与信号接收终端建立蓝牙连接；
判断所述Type-C接口是否有第二Type-C设备插入；
若所述Type-C接口有第二Type-C设备插入，则通过所述Type-C接口接收所述第二Type-C设备发送的设备音频信号，并将所述设备音频信号转换为对应音频格式的音频数字信号；
以蓝牙方式将所述音频数字信号发送至所述信号接收终端，以实现蓝牙信号转发。
可选地，所述将所述设备音频信号转换为对应音频格式的音频数字信号的步骤包括：
获取所述第二Type-C设备的协议功能信息，并根据所述协议功能信息确定所述第二Type-C设备支持的编解码协议类型；
根据所述编解码协议类型确定目标编解码算法，并根据所述目标编解码算法将所述设备音频信号转换为对应音频格式的音频数字信号。
可选地，所述若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放的步骤之后，还包括：
在接收到所述第一Type-C设备发送的播放控制指令时，根据所述播放控制指令执行对应的播放控制操作。
可选地，所述蓝牙收发器还包括3.5mm接口和功放模块，
所述判断所述Type-C接口是否有第一Type-C设备插入的步骤之后，还包括：
若所述Type-C接口没有第一Type-C设备插入，则判断所述3.5mm接口是否有3.5mm设备插入；
若所述3.5mm接口有3.5mm设备插入，则通过所述功放模块将所述终端音频信号进行处理，得到模拟音频信号，并通过所述3.5mm接口将所述模拟音频信号输出至所述3.5mm设备，以供所述3.5mm设备进行音频播放。
可选地，所述在处于蓝牙接收模式时，通过所述蓝牙模块与音频发送终端建立蓝牙连接的步骤之后，还包括：
在接收到所述音频发送终端发送的均衡器设置指令时，根据所述均衡器设置指令设置所述蓝牙收发器的均衡器参数。
可选地，所述在处于蓝牙接收模式时，通过所述蓝牙模块与音频发送终端建立蓝牙连接的步骤之后，还包括：
在接收到所述音频发送终端发送的固件升级指令时，向所述音频发送终端返回对应的接收成功信息；
接收所述音频发送终端基于所述接收成功信息发送的目标固件，并基于所述目标固件进行固件升级。
此外，为实现上述目的，本申请还提供一种蓝牙收发器，所述蓝牙收发器包括蓝牙模块和通用串行总线Type-C接口，还包括处理器、存储器、以及存储在所述存储器上并可被所述处理器执行的蓝牙传输程序，其中所述蓝牙传输程序被所述处理器执行时，实现如下步骤：
在处于蓝牙接收模式时，通过所述蓝牙模块与音频发送终端建立蓝牙连接；
接收所述音频发送终端以蓝牙方式发送的终端音频信号；
判断所述Type-C接口是否有第一Type-C设备插入；
若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放。
此外，为实现上述目的，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质上存储有蓝牙传输程序，其中所述蓝牙传输程序被处理器执行时，实现如下步骤：
蓝牙收发器在处于蓝牙接收模式时，通过所述蓝牙收发器的蓝牙模块与音频发送终端建立蓝牙连接；
接收所述音频发送终端以蓝牙方式发送的终端音频信号；
判断所述蓝牙收发器的Type-C接口是否有第一Type-C设备插入；
若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放。
本申请通过蓝牙收发器接收音频发送终端以蓝牙方式发送的音频信号，再将该音频信号发送至与蓝牙收发器连接的Type-C，从而将蓝牙收发器与Type-C耳机组合实现Type-C蓝牙耳机功能，实现了Type-C耳机的蓝牙无线传输，为用户提供了方便，有利于提高用户的体验。
附图说明
图1是本申请音频的蓝牙传输方法第一实施例的流程示意图；
图2是本申请音频的蓝牙传输方法第二实施例的流程示意图；
图3是本申请音频的蓝牙传输方法第三实施例的流程示意图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
本申请实施例涉及的音频的蓝牙传输方法主要应用于蓝牙收发器。
本申请实施例中，蓝牙收发器可以包括处理器；其中，该处理器可以是通过高度集成的芯片实现，将MCU（Microcontroller Unit，微控制单元）和DSP(Digital Signal Processing，数字信号处理）的功能集成在一起（当然还可以集成其它的功能）；其中MCU主要用于实现控制功能，DSP主要用于实现数字信号处理。蓝牙收发器还包括蓝牙模块，该蓝牙模块可以是集成在处理器，也可以是一个独立的部分，该蓝牙模块包括双模蓝牙，即基础速率/增强速率蓝牙模块（BR/EDR）和低功耗蓝牙模块（BLE）。进一步的，蓝牙收发器还包括存储器；作为一种计算机可读存储介质的存储器则还可以包括操作系统、网络通信模块以及蓝牙传输程序，网络通信模块主要用于连接终端，并与终端数据通信。
可选地，该蓝牙收发器还包括通用串行总线Type-C接口、OTG IC（OTG芯片）、DC/DC Voltage Regulator（调压器）、电池Battery部分、RGB部分、功放Amplifier部分、音频采集装置（如麦克风Micphone）、ADC（模数转换器）、3.5mm接口、按键Key部分和天线Antenna部分。Type-C接口为音频输入、输出的复用接口，同时也作为充电接口，通过该接口可以给插入的Type-C接口的Type-C耳机供电；OTG IC用于给Type-C端口插入的耳机提供电源供电通道，当插入Type-C耳机时，需要通过OTG IC对Type-C耳机供电，该OTG IC用于识别外部需要供电的设备，提供外部设备的供电路径，其电源通过DC/DC Voltage Regulator提供，DC/DC Voltage Regulator能把电池电压升压到一定程度（如5V），然后通过OTG IC给外部接入的Type-C耳机供电。对于Battery部分则主要用于给蓝牙收发器供电。RGB部分用于指示蓝牙收发器工作状态。Amplifier部分主要用于对音频信号的转换处理。音频采集装置用于采集语音信号。ADC则主要用于实现模数转换功能。3.5mm接口为模拟音频输入、输出复用接口，也能支持插入音频线的麦克风信号传输和按键信息传输。按键Key部分则主要用于控制蓝牙收发器的工作状态。Antenna部分主要用于电信号和无线电磁波信号相互转换，实现无线发射和接受收信号转换功能。
本领域技术人员可以理解，上述的蓝牙收发器的硬件结构并不构成对本申请的限定，在实际中蓝牙收发器可以包括比上述举例更多或更少的部件，或者组合某些部件，或者不同的部件布置。
进一步的，蓝牙收发器的处理器可以调用存储器中存储的蓝牙传输程序，并执行以下操作：
在处于蓝牙接收模式时，通过所述蓝牙模块与音频发送终端建立蓝牙连接；
接收所述音频发送终端以蓝牙方式发送的终端音频信号；
判断所述Type-C接口是否有第一Type-C设备插入；
若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放。
进一步的，所述蓝牙模块包括低功耗蓝牙模块，
蓝牙收发器的处理器可以调用存储器中存储的蓝牙传输程序，并执行以下操作：
通过所述第一Type-C设备的设备麦克风采集用户的语音控制信号，或通过所述蓝牙收发器的收发器麦克风采集用户的语音控制信号；
通过所述低功耗蓝牙模块将所述语音控制信号发送至所述音频发送终端，以供所述音频发送终端对所述语音控制信号进行解析和处理。
进一步的，蓝牙收发器的处理器可以调用存储器中存储的蓝牙传输程序，并执行以下操作：
在接收到发射模式切换指令时，根据所述发射模式切换指令进入蓝牙发射模式，并通过所述蓝牙模块与信号接收终端建立蓝牙连接；
判断所述Type-C接口是否有第二Type-C设备插入；
若所述Type-C接口有第二Type-C设备插入，则通过所述Type-C接口接收所述第二Type-C设备发送的设备音频信号，并将所述设备音频信号转换为对应音频格式的音频数字信号；
以蓝牙方式将所述音频数字信号发送至所述信号接收终端，以实现蓝牙信号转发。
进一步的，所述将所述设备音频信号转换为对应音频格式的音频数字信号的步骤包括：
获取所述第二Type-C设备的协议功能信息，并根据所述协议功能信息确定所述第二Type-C设备支持的编解码协议类型；
根据所述编解码协议类型确定目标编解码算法，并根据所述目标编解码算法将所述设备音频信号转换为对应音频格式的音频数字信号。
进一步的，蓝牙收发器的处理器可以调用存储器中存储的蓝牙传输程序，并执行以下操作：
在接收到所述第一Type-C设备发送的播放控制指令时，根据所述播放控制指令执行对应的播放控制操作。
进一步的，所述蓝牙收发器还包括3.5mm接口和功放模块，蓝牙收发器的处理器可以调用存储器中存储的蓝牙传输程序，并执行以下操作：
若所述Type-C接口没有第一Type-C设备插入，则判断所述3.5mm接口是否有3.5mm设备插入；
若所述3.5mm接口有3.5mm设备插入，则通过所述功放模块将所述终端音频信号进行处理，得到模拟音频信号，并通过所述3.5mm接口将所述模拟音频信号输出至所述3.5mm设备，以供所述3.5mm设备进行音频播放。
进一步的，蓝牙收发器的处理器可以调用存储器中存储的蓝牙传输程序，并执行以下操作：
在接收到所述音频发送终端发送的均衡器设置指令时，根据所述均衡器设置指令设置所述蓝牙收发器的均衡器参数。
进一步的，蓝牙收发器的处理器可以调用存储器中存储的蓝牙传输程序，并执行以下操作：
在接收到所述音频发送终端发送的固件升级指令时，向所述音频发送终端返回对应的接收成功信息；
接收所述音频发送终端基于所述接收成功信息发送的目标固件，并基于所述目标固件进行固件升级。
基于上述蓝牙收发器的硬件结构，提出本申请音频的蓝牙传输方法的各个实施例。
本申请提供一种音频的蓝牙传输方法。
参照图1，图1为本申请音频的蓝牙传输方法第一实施例的流程示意图。
本实施例中的音频的蓝牙传输方法应用于蓝牙收发器，所述蓝牙收发器包括蓝牙模块和通用串行总线Type-C接口，所述音频的蓝牙传输方法包括：
步骤S10，在处于蓝牙接收模式时，通过所述蓝牙模块与音频发送终端建立蓝牙连接；
随着技术的不断进步，可穿戴设备市场得到迅猛发展，耳机的种类也层出不穷。其中，手机的3.5mm音频输出接口逐渐被取消，Type-C音频输出接口逐渐取代了3.5mm音频输出接口。通过Type-C接口输出数字音频，在Type-C端做高清的数字解码，即可输出高清无损的Type-C音频。但是，目前的Type-C接口的耳机只能通过有线的方式连接到手机或者其他终端上才能听歌，不能像普通的蓝牙耳机般通过无线的方式进行音频传输和播放。这对用户而言不是很方便，降低了用户的使用体验。对此，本实施例中提出一种音频的蓝牙传输方法，通过一蓝牙收发器接收音频发送终端以蓝牙方式发送的音频信号，再将该音频信号发送至与蓝牙收发器连接的Type-C，从而将蓝牙收发器与Type-C耳机组合实现Type-C蓝牙耳机功能，实现了Type-C耳机的蓝牙无线传输，为用户提供了方便，有利于提高用户的体验。
具体的，本实施例的音频的蓝牙传输方法应用于蓝牙收发器，该蓝牙收发器包括蓝牙模块和通用串行总线Type-C接口。蓝牙收发器在开机后，用户可通过蓝牙收发器的相关功能按键（Key部分）触发相应的接收模式切换指令；蓝牙收发器在接收到该接收模式切换指令时，将会进入蓝牙接收模式。在处于蓝牙接收模式时，蓝牙收发器将会通过蓝牙模块与对应的音频发送终端建立蓝牙连接；对于该音频发送终端，可以是手机、平板电脑、掌上电脑、笔记本电脑等具有蓝牙功能的终端，为说明方便，本实施例中的音频发送终端以手机为例进行说明。值得说明的是，本实施例中为了表示蓝牙收发器的当前状态（所处模式），蓝牙收发器还可通过某一指示灯进行表征，例如当蓝牙收发器开机、但未与任何终端建立蓝牙连接时，该指示灯可以是闪烁的方式；当蓝牙收发器处于蓝牙接收模式，并与手机（音频发送终端）建立蓝牙连接时，该指示灯可以是常亮的方式；通过该指示灯，可以方便用户直观地了解到蓝牙收发器的当前状态。
步骤S20，接收所述音频发送终端以蓝牙方式发送的终端音频信号；
本实施例中，蓝牙收发器在处于蓝牙接收模式下与手机（音频发送终端）建立蓝牙连接时，即可通过蓝牙模块接收手机以蓝牙方式发送的终端音频信号。
步骤S30，判断所述Type-C接口是否有第一Type-C设备插入；
本实施例中，蓝牙收发器在接收到手机以蓝牙方式发送的终端音频信号时，将会判断蓝牙收发器的Type-C接口是否有第一Type-C设备插入。对于该第一Type-C设备，可以包括具有Type-C接口类型的Type-C耳机、Type-C音响等设备，本实施例中该第一Type-C设备以Type-C耳机为例进行说明，也即蓝牙收发器将会判断Type-C接口是否有Type-C耳机插入。
步骤S40，若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放。
本实施例中，若蓝牙收发器判定当前的Type-C接口有Type-C耳机插入，则蓝牙收发器对步骤S20获得的终端音频信号进行解调出相关的音频信号，然后通过内部的MCU（Microcontroller Unit，微控制单元）或是其它功能模块对其进行重新编码等处理，将其转换为Type-C协议的音频数据，然后通过该Type-C接口将Type-C协议音频数据输出至与蓝牙收发器连接的Type-C耳机中，此时用户若佩戴着该Type-C耳机，即可通过Type-C耳机听到相关的音频，也即可认为用户通过该Type-C耳机以蓝牙的方式听到了手机播放的音频，从而实现Type-C耳机的蓝牙音频传输。
进一步的，本实施例中的蓝牙收发器，可以是与Type-C耳机结合使用，从而实现Type-C耳机的蓝牙音频传输功能；还可以是与3.5mm接口的相关设备结合，从而实现3.5mm接口的相关设备的蓝牙音频传输功能，其中，该3.5mm接口的相关设备，以3.5mm耳机（也即该耳机的插入线为3.5mm的形式）进行说明。本实施例中的蓝牙收发器，还包括有3.5mm接口和功放模块（Amplifier）；当蓝牙收发器接收到手机发送的终端音频信号时，将会解调出相应的音频信号，然后分为两路输出；其中一路是模拟信号输出，模拟信号输出给Amplifier部分，由Amplifier部分完成对模拟信号的转换和功率放大，从而得到模拟音频信号，然后再将该模拟音频信号输出至3.5mm耳机，此时在3.5mm接口插入耳机即可听到手机端的音频信号，实现3.5mm耳机的蓝牙音频传输；而另一路音频信号则如上述，通过内部的MCU（Microcontroller Unit，微控制单元）或是其它功能模块对其进行重新编码等处理，将其转换为Type-C协议的音频数据，然后通过该Type-C接口将Type-C协议音频数据输出至与蓝牙收发器连接的Type-C耳机中。值得说明的是，在实际应用中，为降低蓝牙收发器的功耗，该音频的输出还可以是优先Type-C接口。具体的，本实施例中，步骤S30之后，还包括：
若所述Type-C接口没有第一Type-C设备插入，则判断所述3.5mm接口是否有3.5mm设备插入；
本实施例中，蓝牙收发器在接收到接收到手机发送的终端音频信号时，将会判断Type-C接口是否有Type-C耳机插入；如果该Type-C接口接口有Type-C耳机插入，则优先将音频输出至Type-C接口的Type-C耳机，也即执行步骤S40；而如果Type-C接口没有Type-C耳机插入，则蓝牙收发器将进一步判断3.5mm接口是否有3.5mm耳机插入。
若所述3.5mm接口有3.5mm设备插入，则通过所述功放模块将所述终端音频信号进行处理，得到模拟音频信号，并通过所述3.5mm接口将所述模拟音频信号输出至所述3.5mm设备，以供所述3.5mm设备进行音频播放。
本实施例中，如果3.5mm接口有3.5mm耳机插入，则蓝牙收发器将根据接收到的终端音频信号解调出相应的音频信号，并通过功放模块（Amplifier）完成对模拟信号的转换和功率放大，得到模拟音频信号，然后通过3.5mm接口将该模拟音频信号输出至3.5mm耳机，以供所述3.5mm设备进行音频播放。而如果3.5mm接口也没有3.5mm耳机插入，则蓝牙收发器将可不对终端音频信号进行处理，从而减少功耗；当然蓝牙收发器还可以发出相关的提示信息，以提示用户插入耳机，如通过指示灯进行提示，发出语音提示音等。
再进一步的，本实施例中，在蓝牙收发器的Type-C接口有Type-C耳机插入、蓝牙收发器向Type-C耳机输出音频时，用户还可以通过Type-C上的相关功能按键对音频的播放进行控制。具体的，当用户需要对音频的播放进行控制时，可以对Type-C耳机的控制键进行操作，Type-C耳机则根据用户的操作、通过内置的通信芯片向蓝牙收发器发送对应的播放控制指令；蓝牙收发器在接收到该播放控制指令时，将会对该播放控制指令中的按键信息进行识别，从而确定控制类型，并根据该控制类型执行对应的播放控制操作，例如暂停播放/恢复播放、音量加/减等。当然，若蓝牙收发器是与3.5mm耳机进行连接，则也可以进行相应的播放控制；例如，3.5mm接口插入3.5mm的耳机线时，麦克风信号同时连接到蓝牙芯片自带的ADC接口，通过ADC接口电平的检测，可判断音频线上是否有按键按下；当用户按下3.5mm音频线的相关控制按键时，蓝牙收发器将根据检测到的电压判断按下的按键，并通过获取到的按键信息判断按键对应的操作，控制蓝牙部分执行相应的操作。通过以上方式，可方便用户从耳机端对蓝牙收发器的音频播放进行控制。
在具体应用中，考虑到不同用户对音频播放效果可能会有不同的需要，为了尽可能实现用户播放需求，蓝牙收发器还可以集成相关的均衡器功能，该均衡器功能的具体参数可以是通过手机（音频发送终端）进行设置。具体的，本实施例中，用户可在手机相关的设置界面（如app界面、系统设置界面等）对蓝牙收发器的均衡器EQ参数进行设置，在设置完成时，手机将向蓝牙收发器发送对应的均衡器设置指令。蓝牙收发器在接收到该均衡器设置指令时，将会提取出该均衡器设置指令的具体设置内容（均衡器EQ参数），用以对本地的均衡器进行设置，从而实现手机端调节蓝牙收发器的均衡器的功能。值得说明的是，由于均衡器设置指令中涉及的数据量一般较小，为了降低功耗，对于该均衡器设置指令的收发，可以是通过低功耗蓝牙模块（BLE）实现的。
此外，为了支持蓝牙收发器功能的不断完善，蓝牙收发器还可通过固件升级的方式不断进行升级；而对于升级所用的固件，则也可以是通过音频发送终端获得。具体的，手机可预先从网络中下载获取蓝牙收发器升级所用的目标固件，然后根据该目标固件向蓝牙收发器发送对应的固件升级指令；当然，此时手机与蓝牙收发器可以是通过低功耗蓝牙（BLE）的方式进行双向通行的，当蓝牙收发器接收到该固件升级指令时，将会向手机返回对应的接收成功信息。手机接收到该接收成功信息，即可确认蓝牙收发器处于升级模式；此时手机可将选择好需要升级的目标固件，并将该目标固件发送给蓝牙收发器；蓝牙收发器在接收到手机发送的目标固件时，即可基于该目标固件进行固件升级。通过以上方式，蓝牙收发器无需直接连接网络也可进行固件升级，实现空中升级（OTA），有利于蓝牙收发器功能的不断完善。
本实施例中，蓝牙收发器在处于蓝牙接收模式时，通过蓝牙模块与音频发送终端建立蓝牙连接；接收所述音频发送终端以蓝牙方式发送的终端音频信号；判断所述Type-C接口是否有第一Type-C设备插入；若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放。通过以上方式，本实施例通过蓝牙收发器接收音频发送终端以蓝牙方式发送的音频信号，再将该音频信号发送至与蓝牙收发器连接的Type-C，从而将蓝牙收发器与Type-C耳机组合实现Type-C蓝牙耳机功能，实现了Type-C耳机的蓝牙无线传输，为用户提供了方便，有利于提高用户的体验。
参照图2，图2为本申请音频的蓝牙传输方法第二实施例的流程示意图。
基于上述图1所示实施例，本实施例中，所述蓝牙模块包括低功耗蓝牙模块，所述步骤S40之后还包括：
步骤S50，通过所述第一Type-C设备的设备麦克风采集用户的语音控制信号，或通过所述蓝牙收发器的收发器麦克风采集用户的语音控制信号；
本实施例中，蓝牙收发器还可以向蓝牙连接的音频发送终端（手机）发送相应的语音控制信号，从而对音频发送终端进行语音控制。具体的，本实施例中，用户可通过触碰Type-C耳机的相关按键或区域，触发对应的语音采集指令；Type-C耳机在接收到该语音采集指令时，将会通过Type-C耳机上的耳机麦克风采集用户的语音控制信号；然后将该语音控制信号传输至蓝牙收发器；当然，若Type-C耳机不带有麦克风的情况下，还可与使用蓝牙收发器自带的麦克风进行语音控制信号的采集。
步骤S60，通过所述低功耗蓝牙模块将所述语音控制信号发送至所述音频发送终端，以供所述音频发送终端对所述语音控制信号进行解析和处理。
本实施例中，蓝牙收发器得到用户的语音控制信号时，会通过蓝牙模块将该语音控制信号发送至手机，从而对手机进行语音控制。手机在接收到该语音控制信号时，将对该语音控制信号进行解析，判断用户说话的含义，然后根据该含义进行相应的处理，或是执行相应操作，例如接听来电实现蓝牙通话，改变手机的某个设置，播放某首歌，控制家电等。其中，手机对语音控制信号的解析过程，可以是手机将该语音控制信号发送至云端，由云端解析完成后再将该解析结果返回至手机，手机再根据该解析结果执行相应操作。值得说明的是，本实施例中的蓝牙收发器，采用了双模蓝牙的方式，即包括基础速率/增强速率蓝牙模块（BR/EDR）和低功耗蓝牙模块（BLE）；而蓝牙收发器在向手机发送语音控制信号时，由于该语音控制信号的数据量一般较小，因而可以是通过BLE模块进行发送，从而降低功耗，延长续航时间。
参照图3，图3为本申请音频的蓝牙传输方法第三实施例的流程示意图。
基于上述图1所示实施例，本实施例中，所述音频的蓝牙传输方法还包括：
步骤S70，在接收到发射模式切换指令时，根据所述发射模式切换指令进入蓝牙发射模式，并通过所述蓝牙模块与信号接收终端建立蓝牙连接；
本实施例中，蓝牙收发器还可以通过Type-C接口（或3.5mm接口）是与某一不具有蓝牙功能的终端进行连接，通过蓝牙收发器将该无蓝牙终端的输入的信号转发至其他的蓝牙从设备（如蓝牙耳机、蓝牙音箱等）。具体的，用户可通过蓝牙收发器上的相关功能按键触发发射模式切换指令；蓝牙收发器在接收到该发射模式切换指令时，将会进入蓝牙发射模式，并通过蓝牙模块与对应的信号接收终端（蓝牙从设备）建立蓝牙连接。为了说明方便，该信号接收终端蓝牙耳机为例进行说明，也即蓝牙收发器会与该蓝牙耳机建立蓝牙连接。
步骤S80，判断所述Type-C接口是否有第二Type-C设备插入；
本实施例中，蓝牙收发器还将判断Type-C接口是否有Type-C设备插入。值得说明的是，此时的Type-C接口主要是用作信号输入端口。
步骤S90，若所述Type-C接口有第二Type-C设备插入，则通过所述Type-C接口接收所述第二Type-C设备发送的设备音频信号，并将所述设备音频信号转换为对应音频格式的音频数字信号；
本实施例中，当Type-C接口有Type-C设备插入时，可认为该Type-C设备为信号输入设备，为说明方便，该Type-C设备以平板电脑进行说明。此时蓝牙收发器将会通过Type-C接口接收该平板电脑发送的设备音频信号，然后对该设备音频信号进行相应的解码转换等处理，得到对应音频格式的音频数字信号。
值得说明的是，蓝牙收发器的音频信号编码和解码方式中可引入高清音质压缩和解压算法，如LDAC编解码方式、HWA编解码、aptX-HD编解码等高清无损音质编解码协议，不管该蓝牙收发器处于发射还是收发模式，可根据蓝牙连接对象支持编解码协议进行相应的编解码处理。例如，蓝牙收发器将会获取蓝牙耳机的协议功能信息，并根据该协议功能信息确定蓝牙耳机所支持的编解码协议类型；在确定蓝牙耳机所支持的编解码协议类型时，蓝牙收发器将根据该编解码协议类型确定目标编解码算法，并根据该目标编解码算法对设备音频信号进行相应的解码转换等处理，得到对应音频格式的音频数字信号。
步骤S100，以蓝牙方式将所述音频数字信号发送至所述信号接收终端，以实现蓝牙信号转发。
本实施例中，在得到音频数字信号时，蓝牙收发器即可以蓝牙方式将该音频数字信号发送至蓝牙耳机，从而实现Type-C输入音频的蓝牙转发功能。
值得说明的是，本实施例中的蓝牙收发器，也可以是通过3.5mm接口的设备作为音频输入设备。也即蓝牙收发器通过自身的3.5mm接口与另一音频设备进行连接，由该音频设备通过3.5mm接口向蓝牙收发器输入音频信号；蓝牙收发器通过ADC部分（模数转换器部分)采集3.5mm音频线的模拟信号，并通过ADC把模拟信号转换为数字信号，再将数字信号传给蓝牙模块，由蓝牙模块再编码为蓝牙音频信号后以蓝牙方式发送到蓝牙连接的蓝牙耳机处。
此外，本申请还提供一种计算机可读存储介质。
本申请计算机可读存储介质上存储有蓝牙传输程序，其中所述蓝牙传输程序被处理器执行时，实现如上述的音频的蓝牙传输方法的步骤。
其中，蓝牙传输程序被执行时所实现的方法可参照本申请音频的蓝牙传输方法的各个实施例，此处不再赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者系统不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者系统所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者系统中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在如上所述的一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
以上仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (20)

  1. 一种音频的蓝牙传输方法，其中，所述音频的蓝牙传输方法应用于蓝牙收发器，所述蓝牙收发器包括蓝牙模块和通用串行总线Type-C接口，所述音频的蓝牙传输方法包括：
    在处于蓝牙接收模式时，通过所述蓝牙模块与音频发送终端建立蓝牙连接；
    接收所述音频发送终端以蓝牙方式发送的终端音频信号；
    判断所述Type-C接口是否有第一Type-C设备插入；
    若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放。
  2. 如权利要求1所述的音频的蓝牙传输方法，其中，所述蓝牙模块包括低功耗蓝牙模块，
    所述若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放的步骤之后，还包括：
    通过所述第一Type-C设备的设备麦克风采集用户的语音控制信号，或通过所述蓝牙收发器的收发器麦克风采集用户的语音控制信号；
    通过所述低功耗蓝牙模块将所述语音控制信号发送至所述音频发送终端，以供所述音频发送终端对所述语音控制信号进行解析和处理。
  3. 如权利要求1所述的音频的蓝牙传输方法，其中，所述音频的蓝牙传输方法还包括：
    在接收到发射模式切换指令时，根据所述发射模式切换指令进入蓝牙发射模式，并通过所述蓝牙模块与信号接收终端建立蓝牙连接；
    判断所述Type-C接口是否有第二Type-C设备插入；
    若所述Type-C接口有第二Type-C设备插入，则通过所述Type-C接口接收所述第二Type-C设备发送的设备音频信号，并将所述设备音频信号转换为对应音频格式的音频数字信号；
    以蓝牙方式将所述音频数字信号发送至所述信号接收终端，以实现蓝牙信号转发。
  4. 如权利要求3所述的音频的蓝牙传输方法，其中，所述将所述设备音频信号转换为对应音频格式的音频数字信号的步骤包括：
    获取所述第二Type-C设备的协议功能信息，并根据所述协议功能信息确定所述第二Type-C设备支持的编解码协议类型；
    根据所述编解码协议类型确定目标编解码算法，并根据所述目标编解码算法将所述设备音频信号转换为对应音频格式的音频数字信号。
  5. 如权利要求1所述的音频的蓝牙传输方法，其中，所述若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放的步骤之后，还包括：
    在接收到所述第一Type-C设备发送的播放控制指令时，根据所述播放控制指令执行对应的播放控制操作。
  6. 如权利要求1所述的音频的蓝牙传输方法，其中，所述蓝牙收发器还包括3.5mm接口和功放模块，
    所述判断所述Type-C接口是否有第一Type-C设备插入的步骤之后，还包括：
    若所述Type-C接口没有第一Type-C设备插入，则判断所述3.5mm接口是否有3.5mm设备插入；
    若所述3.5mm接口有3.5mm设备插入，则通过所述功放模块将所述终端音频信号进行处理，得到模拟音频信号，并通过所述3.5mm接口将所述模拟音频信号输出至所述3.5mm设备，以供所述3.5mm设备进行音频播放。
  7. 如权利要求1所述的音频的蓝牙传输方法，其中，所述在处于蓝牙接收模式时，通过所述蓝牙模块与音频发送终端建立蓝牙连接的步骤之后，还包括：
    在接收到所述音频发送终端发送的均衡器设置指令时，根据所述均衡器设置指令设置所述蓝牙收发器的均衡器参数。
  8. 如权利要求1所述的音频的蓝牙传输方法，其中，所述在处于蓝牙接收模式时，通过所述蓝牙模块与音频发送终端建立蓝牙连接的步骤之后，还包括：
    在接收到所述音频发送终端发送的固件升级指令时，向所述音频发送终端返回对应的接收成功信息；
    接收所述音频发送终端基于所述接收成功信息发送的目标固件，并基于所述目标固件进行固件升级。
  9. 一种蓝牙收发器，其中，所述蓝牙收发器包括蓝牙模块和通用串行总线Type-C接口，还包括处理器、存储器、以及存储在所述存储器上并可被所述处理器执行的蓝牙传输程序，其中所述蓝牙传输程序被所述处理器执行时，实现如下步骤：
    在处于蓝牙接收模式时，通过所述蓝牙模块与音频发送终端建立蓝牙连接；
    接收所述音频发送终端以蓝牙方式发送的终端音频信号；
    判断所述Type-C接口是否有第一Type-C设备插入；
    若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放。
  10. 如权利要求9所述的蓝牙收发器，其中，所述蓝牙模块包括低功耗蓝牙模块，所述蓝牙传输程序被所述处理器执行时，还实现如下步骤：
    通过所述第一Type-C设备的设备麦克风采集用户的语音控制信号，或通过所述蓝牙收发器的收发器麦克风采集用户的语音控制信号；
    通过所述低功耗蓝牙模块将所述语音控制信号发送至所述音频发送终端，以供所述音频发送终端对所述语音控制信号进行解析和处理。
  11. 如权利要求9所述的蓝牙收发器，其中，所述蓝牙传输程序被所述处理器执行时，还实现如下步骤：
    在接收到发射模式切换指令时，根据所述发射模式切换指令进入蓝牙发射模式，并通过所述蓝牙模块与信号接收终端建立蓝牙连接；
    判断所述Type-C接口是否有第二Type-C设备插入；
    若所述Type-C接口有第二Type-C设备插入，则通过所述Type-C接口接收所述第二Type-C设备发送的设备音频信号，并将所述设备音频信号转换为对应音频格式的音频数字信号；
    以蓝牙方式将所述音频数字信号发送至所述信号接收终端，以实现蓝牙信号转发。
  12. 如权利要求11所述的蓝牙收发器，其中，所述将所述设备音频信号转换为对应音频格式的音频数字信号的步骤包括：
    获取所述第二Type-C设备的协议功能信息，并根据所述协议功能信息确定所述第二Type-C设备支持的编解码协议类型；
    根据所述编解码协议类型确定目标编解码算法，并根据所述目标编解码算法将所述设备音频信号转换为对应音频格式的音频数字信号。
  13. 如权利要求9所述的蓝牙收发器，其中，所述蓝牙传输程序被所述处理器执行时，还实现如下步骤：
    在接收到所述第一Type-C设备发送的播放控制指令时，根据所述播放控制指令执行对应的播放控制操作。
  14. 如权利要求9所述的蓝牙收发器，其中，所述蓝牙收发器还包括3.5mm接口和功放模块，所述蓝牙传输程序被所述处理器执行时，还实现如下步骤：
    若所述Type-C接口没有第一Type-C设备插入，则判断所述3.5mm接口是否有3.5mm设备插入；
    若所述3.5mm接口有3.5mm设备插入，则通过所述功放模块将所述终端音频信号进行处理，得到模拟音频信号，并通过所述3.5mm接口将所述模拟音频信号输出至所述3.5mm设备，以供所述3.5mm设备进行音频播放。
  15. 如权利要求9所述的蓝牙收发器，其中，所述蓝牙传输程序被所述处理器执行时，还实现如下步骤：
    在接收到所述音频发送终端发送的均衡器设置指令时，根据所述均衡器设置指令设置所述蓝牙收发器的均衡器参数。
  16. 如权利要求9所述的蓝牙收发器，其中，所述蓝牙传输程序被所述处理器执行时，还实现如下步骤：
    在接收到所述音频发送终端发送的固件升级指令时，向所述音频发送终端返回对应的接收成功信息；
    接收所述音频发送终端基于所述接收成功信息发送的目标固件，并基于所述目标固件进行固件升级。
  17. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有蓝牙传输程序，其中所述蓝牙传输程序被处理器执行时，实现如下步骤：
    蓝牙收发器在处于蓝牙接收模式时，通过所述蓝牙收发器的蓝牙模块与音频发送终端建立蓝牙连接；
    接收所述音频发送终端以蓝牙方式发送的终端音频信号；
    判断所述蓝牙收发器的Type-C接口是否有第一Type-C设备插入；
    若所述Type-C接口有第一Type-C设备插入，则将所述终端音频信号转换为对应的Type-C协议音频数据，并通过所述Type-C接口将所述Type-C协议音频数据输出至所述第一Type-C设备，以供所述第一Type-C设备进行音频播放。
  18. 如权利要求17所述的计算机可读存储介质，其中，所述蓝牙模块包括低功耗蓝牙模块，所述蓝牙传输程序被所述处理器执行时，还实现如下步骤：
    通过所述第一Type-C设备的设备麦克风采集用户的语音控制信号，或通过所述蓝牙收发器的收发器麦克风采集用户的语音控制信号；
    通过所述低功耗蓝牙模块将所述语音控制信号发送至所述音频发送终端，以供所述音频发送终端对所述语音控制信号进行解析和处理。
  19. 如权利要求17所述的计算机可读存储介质，其中，所述蓝牙传输程序被所述处理器执行时，还实现如下步骤：
    在接收到发射模式切换指令时，根据所述发射模式切换指令进入蓝牙发射模式，并通过所述蓝牙模块与信号接收终端建立蓝牙连接；
    判断所述Type-C接口是否有第二Type-C设备插入；
    若所述Type-C接口有第二Type-C设备插入，则通过所述Type-C接口接收所述第二Type-C设备发送的设备音频信号，并将所述设备音频信号转换为对应音频格式的音频数字信号；
    以蓝牙方式将所述音频数字信号发送至所述信号接收终端，以实现蓝牙信号转发。
  20. 如权利要求19所述的蓝牙收发器，其中，所述将所述设备音频信号转换为对应音频格式的音频数字信号的步骤包括：
    获取所述第二Type-C设备的协议功能信息，并根据所述协议功能信息确定所述第二Type-C设备支持的编解码协议类型；
    根据所述编解码协议类型确定目标编解码算法，并根据所述目标编解码算法将所述设备音频信号转换为对应音频格式的音频数字信号。
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