WO2022087924A1 - 音频控制方法和设备 - Google Patents

音频控制方法和设备 Download PDF

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Publication number
WO2022087924A1
WO2022087924A1 PCT/CN2020/124551 CN2020124551W WO2022087924A1 WO 2022087924 A1 WO2022087924 A1 WO 2022087924A1 CN 2020124551 W CN2020124551 W CN 2020124551W WO 2022087924 A1 WO2022087924 A1 WO 2022087924A1
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WO
WIPO (PCT)
Prior art keywords
broadcast
broadcast receiver
channel
control device
bis
Prior art date
Application number
PCT/CN2020/124551
Other languages
English (en)
French (fr)
Inventor
董建利
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP20959087.6A priority Critical patent/EP4228285A4/en
Priority to PCT/CN2020/124551 priority patent/WO2022087924A1/zh
Priority to CN202080103397.0A priority patent/CN116097663A/zh
Publication of WO2022087924A1 publication Critical patent/WO2022087924A1/zh
Priority to US18/308,206 priority patent/US20230269012A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/71—Wireless systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016—Earpieces of the intra-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1083—In-session procedures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers

Definitions

  • the present application relates to the field of communications, and more particularly, to an audio control method and device.
  • Bluetooth Low Energy also known as Bluetooth Low Energy
  • BLE Bluetooth Low Energy
  • a Bluetooth headset can establish a wireless connection with a music playback device to play music.
  • a Bluetooth headset can establish a wireless connection with a mobile phone to make and receive calls. How to control audio playback based on BLE is a problem that needs to be considered.
  • Embodiments of the present application provide an audio control method and device, which can conveniently support audio control of the device.
  • the embodiment of the present application provides an audio control method, including:
  • control device receives notification information from the first broadcast receiver
  • the control device controls the broadcast synchronization stream BIS synchronized by the second broadcast receiver based on the notification information.
  • the embodiment of the present application provides an audio control method, including:
  • the first broadcast receiver sends notification information to the control device
  • the notification information is used to instruct the control device to control the broadcast synchronization stream BIS synchronized by the second broadcast receiver.
  • the embodiment of the present application provides an audio control method, including:
  • the second broadcast receiver receives the indication information from the control device, where the indication information is determined by the control device based on the notification information of the first broadcast receiver;
  • the second broadcast receiver synchronously broadcasts the synchronous stream BIS based on the indication information.
  • control device including:
  • a receiving unit configured to receive notification information from the first broadcast receiver
  • the control unit is configured to control the broadcast synchronization stream BIS synchronized by the second broadcast receiver based on the notification information.
  • Embodiments of the present application provide a first broadcast receiver, including:
  • a sending unit used for sending notification information to the control device
  • the notification information is used to instruct the control device to control the broadcast synchronization stream BIS synchronized by the second broadcast receiver.
  • Embodiments of the present application provide a second broadcast receiver, including:
  • a receiving unit configured to receive indication information from the control device, where the indication information is determined by the control device based on the notification information of the first broadcast receiver;
  • the control unit is used for synchronously broadcasting the synchronous stream BIS based on the indication information.
  • Embodiments of the present application provide a control device including a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory, so that the control device executes the above-mentioned audio control method.
  • Embodiments of the present application provide an audio receiving device, including a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory, so that the audio receiving device executes the above-mentioned audio control method.
  • An embodiment of the present application provides a chip for implementing the above-mentioned audio control method.
  • the chip includes: a processor for calling and running a computer program from the memory, so that the device installed with the chip executes the above-mentioned audio control method.
  • Embodiments of the present application provide a computer-readable storage medium for storing a computer program, which, when the computer program is executed by a device, causes the device to execute the above-mentioned audio control method.
  • An embodiment of the present application provides a computer program product, including computer program instructions, and the computer program instructions cause a computer to execute the above-mentioned audio control method.
  • the embodiments of the present application provide a computer program, which, when running on a computer, enables the computer to execute the above-mentioned audio control method.
  • the BIS that controls the synchronization of the second broadcast receiver can conveniently support the audio control of the device.
  • FIG. 1a and 1b are schematic diagrams of application scenarios according to embodiments of the present application.
  • FIG. 2 is a schematic flowchart of an audio control method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of an audio control method according to another embodiment of the present application.
  • FIG. 4 is a schematic flowchart of an audio control method according to another embodiment of the present application.
  • FIG. 5 is a schematic flow chart of Scheme 1.
  • FIG. 6 is a schematic flow chart of Scheme 2.
  • FIG. 7 is a schematic block diagram of a control device according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a control device according to another embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a first broadcast receiver according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a first broadcast receiver according to another embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a second broadcast receiver according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a chip according to an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wireless Fidelity Wireless Fidelity
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device can be a station (STAION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • STAION, ST in the WLAN
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • augmented reality (Augmented Reality, AR) terminal Equipment wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
  • the network device may also be a base station set in a location such as land or water.
  • a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
  • Pico cell Femto cell (Femto cell), etc.
  • These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
  • Wired LE Audio (Audio) is a new generation of Bluetooth audio technology that can provide more powerful Bluetooth functions for the wireless audio market, including:
  • the LE audio system may include three roles of a broadcast source (Broadcast Source), a broadcast sink (Broadcast Sink), and a broadcast assistant (Broadcast Assistant).
  • the broadcast source and broadcast assistant roles can be located on different devices.
  • the broadcast source may also be referred to as a broadcast audio source, and may be set in a terminal device with an audio playback function, such as a television (TV) and a mobile phone.
  • the device where the broadcast source is located can be used as a broadcast media sender (Broadcast Media Sender, BMS).
  • Broadcast Assistant can be set up on devices with control capabilities.
  • the broadcast receiver may also be referred to as a broadcast audio receiver, including devices such as earphones such as left and right earphones (Earbud Left/Right).
  • the device where the broadcast audio receiver is located can be used as a broadcast media receiver (Broadcast Media Receiver, BMR).
  • BMR Broadcast Media Receiver
  • the Broadcast Audio Receiver allows an external device Broadcast Assistant to perform the scan and detection of the broadcast audio source instead of itself.
  • the broadcast assistant detects that the broadcast directly sends the synchronization information of the broadcast audio source to the two headphones to start binaural playback through the LE connection (Connection).
  • this example has the same basic principle as Figure 1a, the main difference is that the Broadcast Source and Broadcast Assistant roles of the LE audio system can be located on the same device.
  • the device where the broadcast source and the broadcast assistant are located can act as a BMS.
  • the device on which the broadcast audio receiver is located can act as a BMR.
  • the broadcast assistant instructs the left and right earphones (Earbud Left/Right) to synchronize the left and right channels respectively to enter the binaural playback mode.
  • the broadcast assistant receives the notification information sent by the headset device that has stopped playing, searches for another headset that is in the same Coordinated Set as the headset, and instructs the headset to stop synchronizing the current sound.
  • the BIS corresponding to the channel and start to synchronize the BIS corresponding to the mono channel.
  • the newly online headset sends a notification (Notification) information to the broadcast assistant to request broadcast synchronization information.
  • the broadcast assistant sends synchronization information (SyncInfo) to the earphone, and the earphone starts to synchronize the BIS corresponding to the target channel (left channel or right channel).
  • the broadcast assistant finds another headset in the same coordination set as the headset, and instructs the headset to stop synchronizing the BIS corresponding to the mono channel and start synchronizing the BIS corresponding to the target channel (left channel or right channel).
  • the Profile/Service related to LE Audio does not yet have a switching mechanism for the binaural monaural playback mode of the TWS headset based on broadcast audio.
  • FIG. 2 is a schematic flowchart of an audio control method 200 according to an embodiment of the present application.
  • the method can optionally be applied to the systems shown in Figures 1a and 1b, but is not limited thereto.
  • the method includes at least some of the following.
  • the control device receives notification information from the first broadcast receiver.
  • the control device controls the broadcast synchronization stream BIS synchronized by the second broadcast receiver based on the notification information.
  • a control device such as a broadcast assistant may receive a notification message from a first broadcast receiver such as a Bluetooth headset.
  • the notification message may include at least one of the identifier of the first broadcast receiver, the identifier of the coordination set to which the first broadcast receiver belongs, or the identifier of the second broadcast receiver.
  • the control device may send a control command to the second broadcast receiver to control the second broadcast receiver to synchronize the BIS.
  • the method further includes:
  • the control device searches for a second broadcast receiver that is in the same coordination set as the first broadcast receiver.
  • a coordination set may be used for a group of devices configured to support a particular scenario.
  • a coordinated set may include a pair of hearing aids, a pair of headphones (earbuds), or a speaker set, and the devices in the coordinated set may receive multi-channel audio and respond to control commands in a coordinated manner.
  • Coordination sets may have corresponding identities.
  • the notification information may include the identifier of the coordination set.
  • the control device may determine the coordination set based on the identifier of the coordination set to which the first broadcast receiver belongs, and then searches for the second broadcast receiver included in the coordination set. the identifier of the receiver, and then the control device can control the synchronized BIS of the second broadcast receiver.
  • the notification information is used to notify the control device that the first broadcast receiver stops synchronizing to periodic broadcasting, and the control device controls the BIS synchronized by the second broadcast receiver based on the notification information, including:
  • the control device instructs the second broadcast receiver to stop synchronizing the BIS corresponding to the second channel and start synchronizing the BIS corresponding to the mono channel.
  • the periodic broadcast may include multiple types of BIS, for example, BIS corresponding to the left channel, BIS corresponding to the right channel, and BIS corresponding to the mono channel.
  • the first broadcast receiver stops synchronizing to the periodic broadcast, that is, stops synchronizing the BIS.
  • the first broadcast receiver can also notify the control device that it needs to switch to the monaural playback mode. Notifications can be made in a variety of ways. For example, in the monaural playback mode, if the control device receives the notification information that the first broadcast receiver stops synchronizing to the periodic broadcast, that is, the first broadcast receiver stops playing the BIS corresponding to the first channel, it can be determined as Need to switch to monaural playback mode. For another example, the notification message carries the indication information of the monaural playback mode.
  • a trigger control is provided on the earphone, and when the trigger control is triggered, the instruction information of mode switching is sent.
  • the earphone is provided with sensors such as an infrared sensor, a gravity sensor, etc., which can detect the state of the earphone being taken out or inserted into the ear, and then the instruction information of mode switching can be obtained. Further, if one of the two earphones in the binaural play mode is taken out from the ear, the taken out earphone can send out instruction information for switching to the monaural play mode.
  • the control device may send a control command to the second broadcast receiver.
  • the control command may instruct the second broadcast receiver to stop playing the BIS corresponding to the second channel and start synchronizing the BIS corresponding to the mono channel.
  • the notification information is used to request the control device to send broadcast synchronization information, and the method further includes:
  • the control device sends broadcast synchronization information to the first broadcast receiver to instruct the first broadcast receiver to start synchronizing the BIS corresponding to the first channel.
  • the first broadcast receiver such as an earphone
  • the first broadcast receiver can also notify the control device that it needs to be switched to the binaural playback mode.
  • There are various ways of notification For example, in the monaural play mode, if the control device receives notification information from the first broadcast receiver requesting the control device to send broadcast synchronization information, it may be determined that it needs to switch to the binaural play mode.
  • the notification message carries the indication information of the binaural playback mode.
  • a trigger control is provided on the earphone, and when the trigger control is triggered, the instruction information of mode switching is sent.
  • the earphone is provided with sensors such as an infrared sensor, a gravity sensor, etc., which can detect the state of the earphone being taken out or inserted into the ear, the instruction information of mode switching can be obtained. Further, if the other earphone paired with one earphone in the monaural playback mode is inserted into the ear, the earphone inserted into the ear can send an instruction to switch to the binaural mode.
  • sensors such as an infrared sensor, a gravity sensor, etc.
  • control device controls the BIS synchronized by the second broadcast receiver based on the notification information, including:
  • the control device instructs the second broadcast receiver to stop synchronizing the BIS corresponding to the mono channel and start synchronizing the BIS corresponding to the second channel.
  • the control device if switching from the monaural play mode to the binaural play mode, the control device not only sends the broadcast synchronization information to the first broadcast receiver, but can also send a control command to the second broadcast receiver.
  • the control command may instruct the second broadcast receiver to stop synchronizing the BIS corresponding to the monaural channel, and start synchronizing the BIS corresponding to the second channel.
  • the first broadcast receiver synchronizes the BIS corresponding to the first channel
  • the second broadcast receiver synchronizes the BIS corresponding to the second channel, it is successfully switched to the binaural playback mode.
  • the notification information includes at least one of source address type, source address and advertisement set identifier (Advertising_SID).
  • the advertisement set identifier may also be referred to as a broadcast set identifier.
  • the address type, address, and SID included in the notification information can be used to identify a broadcast source; the address type and address can be used to identify the device of the broadcast source; the SID can be used to identify the specific broadcast instance of the device (A device may have more than one broadcast instance deployed).
  • the first broadcast receiver and the second broadcast receiver are earphone devices.
  • the first channel is a left channel
  • the second channel is a right channel
  • the first broadcast receiver is a left earphone device
  • the second broadcast receiver is a right earphone device.
  • the first channel is a right channel
  • the second channel is a left channel
  • the first broadcast receiver is a right earphone device
  • the second broadcast receiver is a left earphone device.
  • the method further includes:
  • the control device establishes a synchronization relationship between the broadcast source, the first broadcast receiver and the second broadcast receiver, so as to instruct the first broadcast receiver to synchronize to the BIS corresponding to the first channel, and the second broadcast receiver to synchronize to the first broadcast receiver.
  • the control device may send a control command to a group of broadcast receivers in the same coordination set to establish a synchronization relationship between a broadcast source, such as an audio playback device such as a TV or a mobile phone, and a group of broadcast receivers.
  • a broadcast source such as an audio playback device such as a TV or a mobile phone
  • the control device sends a control command synchronized to the BIS corresponding to the left channel to the left earphone device, and sends a control command synchronized to the BIS corresponding to the right channel to the right earphone device.
  • the binaural playback mode of the left and right headphone devices can be realized.
  • control device is a broadcast assistant.
  • the broadcast assistant may be provided in the control device and the broadcast source may be provided in another device.
  • the broadcast assistant and the broadcast source can be separate devices.
  • the broadcast assistant discovers and synchronizes to the broadcast source through scanning, a connection can be established between the broadcast assistant and the broadcast receiver, and the broadcast assistant sends the synchronization information to the broadcast receiver through the connection.
  • control device includes a broadcast source and a broadcast assistant.
  • the broadcast assistant and the broadcast source may be set in the same device, for example, the control device in the embodiment of the present application.
  • the periodic broadcast received by the broadcast assistant from the broadcast source includes at least one of the following BISs:
  • the broadcast source is a broadcast audio source.
  • the BIS that controls the synchronization of the second broadcast receiver can conveniently support the audio control of the device.
  • the synchronized BIS of the other headset can be controlled, so that it is possible to switch between the binaural playback mode and the monaural playback mode conveniently and quickly, optimize the audio playback effect, and improve the user experience. experience.
  • FIG. 3 is a schematic flowchart of an audio control method 300 according to an embodiment of the present application.
  • the method can optionally be applied to the systems shown in Figures 1a and 1b, but is not limited thereto.
  • the method includes at least some of the following.
  • the first broadcast receiver sends notification information to the control device.
  • the notification information may be used to instruct the control device to control the broadcast synchronization stream BIS synchronized by the second broadcast receiver.
  • the second broadcast receiver and the first broadcast receiver are in the same coordination set.
  • the method further includes:
  • the first broadcast receiver stops synchronizing to periodic broadcasting, and the notification information is used to notify the control device that the first broadcast receiver stops synchronizing to periodic broadcasting.
  • the notification information is used to request the control device to send broadcast synchronization information, and the method further includes:
  • the first broadcast receiver receives the broadcast synchronization information from the control device, and starts to synchronize the BIS corresponding to the first channel.
  • the first broadcast receiver and the second broadcast receiver are earphone devices.
  • the first channel is a left channel
  • the second channel is a right channel
  • the first broadcast receiver is a left earphone device
  • the second broadcast receiver is a right earphone device.
  • the first channel is a right channel
  • the second channel is a left channel
  • the first broadcast receiver is a right earphone device
  • the second broadcast receiver is a left earphone device.
  • control device is a broadcast assistant.
  • control device includes a broadcast source and a broadcast assistant.
  • the periodic broadcast received by the broadcast assistant from the broadcast source includes at least one of the following BISs:
  • the broadcast source is a broadcast audio source
  • the broadcast receiver is a broadcast audio receiver
  • the relevant description of the first broadcast receiver such as the first earphone device in the foregoing method 200, which is not repeated here for brevity.
  • FIG. 4 is a schematic flowchart of an audio control method 400 according to an embodiment of the present application.
  • the method can optionally be applied to the systems shown in Figures 1a and 1b, but is not limited thereto.
  • the method includes at least some of the following.
  • the second broadcast receiver receives indication information from the control device, where the indication information is determined by the control device based on the notification information of the first broadcast receiver.
  • the second broadcast receiver synchronously broadcasts the synchronous stream BIS based on the indication information.
  • the notification information is used to notify the control device that the first broadcast receiver stops synchronizing to periodic broadcast, and the second broadcast receiver synchronizes the BIS based on the indication information, including:
  • the second broadcast receiver stops synchronizing the BIS corresponding to the second channel and starts synchronizing the BIS corresponding to the mono channel.
  • the notification information is used to request the control device to send broadcast synchronization information, and the second broadcast receiver synchronizes the BIS based on the indication information, including:
  • the second broadcast receiver stops synchronizing the BIS corresponding to the mono channel and starts synchronizing the BIS corresponding to the second channel.
  • the first broadcast receiver and the second broadcast receiver are earphone devices.
  • the first channel is a left channel
  • the second channel is a right channel
  • the first broadcast receiver is a left earphone device
  • the second broadcast receiver is a right earphone device.
  • the first channel is a right channel
  • the second channel is a left channel
  • the first broadcast receiver is a right earphone device
  • the second broadcast receiver is a left earphone device.
  • control device is a broadcast assistant.
  • control device includes a broadcast source and a broadcast assistant.
  • the periodic broadcast received by the broadcast assistant from the broadcast source includes at least one of the following BISs:
  • the broadcast source is a broadcast audio source
  • the broadcast receiver is a broadcast audio receiver
  • the audio control method of the present application may be applicable to switching between monaural playback and binaural playback based on low power (Low Energy, LE) broadcast (Broadcast) audio.
  • Low Energy, LE Low Energy, LE
  • Broadcast Broadcast
  • switching between monaural and binaural playback for True Wireless Stereo (TWS) Bluetooth headsets may be applicable to switching between monaural playback and binaural playback based on low power (Low Energy, LE) broadcast (Broadcast) audio.
  • LE Audio technology includes a series of configuration files/services (Profile/Service), each service is responsible for different functions.
  • the main Profiles/Services involved in LE broadcast audio include BAP (Basic Audio Profile, basic audio profile), BASS (Broadcast Audio Scan Service, broadcast audio scan service), but there is no single ear dual set for TWS products. Ear switching mechanism. In products such as TWS earphones, switching the playback mode between one ear and two ears is an important function.
  • the embodiments of the present application may provide a switching mechanism for the binaural and monaural playback mode of a TWS headset based on broadcast audio, an example is as follows.
  • the Broadcast Source configures periodic broadcast, which can contain three BIS audio streams, corresponding to left channel, right channel and mono.
  • the process of the program can mainly include:
  • the broadcast receiver such as the left and right earphones (Earbud Left/Right), establishes a synchronization relationship with the broadcast source (Broadcast Source) with the assistance of the Broadcast Assistant (Broadcast Assistant) (ie, Broadcast Audio Stream synchronization, broadcast audio stream synchronization).
  • the left earphone and the right earphone are synchronized to the BIS corresponding to the left and right channels respectively, playing music in binaural mode. For example, the left and right earphones start advertising respectively.
  • the Broadcast Assistant can perform the Coordinated Set Discovery and Set Member Discovery processes (Set Discovery and Set Members Discovery).
  • the Broadcast Assistant scans the Broadcast Source (Scanning Broadcast Source) and receives Periodic Advertising (PA) sent by the Broadcast Source to the Broadcast Assistant. If the broadcast assistant scans to add a broadcast source (Add Source), it can instruct the headset to desynchronize the PA and synchronize the BIS corresponding to the target channel. For example, instruct the left earphone to desynchronize the PA and synchronize the BIS corresponding to the left channel; instruct the right earphone to desynchronize the PA and synchronize the BIS corresponding to the right channel.
  • the Broadcast Assistant transmits SyncInfo transfers to the left and right earphones, and transmits Broadcast Code transfers.
  • the left and right earphones play Media Streaming respectively.
  • Broadcast Audio Stream synchronization between the broadcast source and the left and right headphones.
  • the user triggers the switching of the monaural playback mode.
  • the user removes an earphone or a control for triggering mode switching, etc., can trigger the switching of the monaural playback mode, for example, make the right earphone enter an idle state (idle).
  • the following takes the user triggering the right earphone as an example for description.
  • the principle of triggering the left earphone is similar, and the example is not repeated.
  • the right earphone sends notification information to notify the broadcast assistant that the right earphone has stopped synchronizing to the periodic broadcast.
  • the notification message sent by the right earphone includes the periodic broadcast synchronization state PA_Sync_State (Not synchronized to PA), indicating that it is not synchronized to periodic broadcast.
  • the broadcast assistant searches for another headset (which may be referred to as a target headset) that is in the same coordinated set (Coordinated Set) with the headset through the received notification information.
  • a target headset which may be referred to as a target headset
  • Coordinatd Set Coordinated Set
  • the broadcast assistant modifies the broadcast source (Modify Source), instructing the searched target earphone to stop synchronizing the BIS corresponding to the left channel, and start synchronizing the BIS corresponding to the monaural channel, and enter the monaural playback mode.
  • the target headset such as the left headset updates the media stream (Update Media Streaming). In this mode, Broadcast Audio Stream synchronization is performed between the broadcast source and the left earphone.
  • the user triggers the switching of the binaural play mode. For example, when the user puts on another earphone in the monaural playback mode, or a control that triggers the mode switching, etc., the switching of the binaural playback mode can be triggered. Assuming that the user still triggers the right earphone, the binaural playback mode is triggered, and the right earphone enters the active state (active).
  • the right earphone sends notification information to the broadcast assistant to request the broadcast assistant to send broadcast synchronization information.
  • the notification information may carry a source address type (Source_Address_Type), a source address (Source_Address), an advertisement set identifier (Advertising_SID), and the like.
  • the notification message from the right earphone may also include the periodic broadcast synchronization state PA_Sync_State (SyncInfo Request), indicating that the right earphone requests broadcast synchronization information
  • the broadcast assistant sends broadcast synchronization information (SyncInfo) to the right earphone.
  • Synchronization information Synchronization information
  • the right earphone starts to synchronize with the BIS corresponding to the right channel and enters the music playback state (playing Media Streaming).
  • the broadcast assistant searches for another headset that is in the same coordination set with the headset through the received notification information.
  • the broadcast assistant can modify the broadcast source (Modify Source), instructing the searched target earphone to stop synchronizing the BIS corresponding to the monaural channel, and start synchronizing the BIS corresponding to the left channel, and enter the binaural playback mode; the target earphone, such as the left earphone, updates the media Streaming (Update Media Streaming). In this mode, Broadcast Audio Stream synchronization is performed between the broadcast source and the left and right headphones.
  • Mode Source the broadcast source
  • the target earphone such as the left earphone
  • the broadcast source configures periodic broadcast, and the periodic broadcast can contain three BIS audio streams, corresponding to the left channel, right channel and monophonic channel respectively.
  • the flow of the solution can mainly include:
  • the broadcast receiver such as the left and right earphones (Earbud Left/Right), establishes a synchronization relationship with the broadcast source (Broadcast Source) with the assistance of the Broadcast Assistant (Broadcast Assistant) (ie, Broadcast Audio Stream synchronization, broadcast audio stream synchronization).
  • Broadcast Assistant Broadcast Audio Stream synchronization, broadcast audio stream synchronization.
  • the left earphone and the right earphone are synchronized to the BIS corresponding to the left and right channels respectively, playing music in binaural mode.
  • Broadcast Assistants and Broadcast Sources may perform coordinated set discovery and set member discovery procedures (Set Discovery and Set Members Discovery).
  • the right earphone sends notification information to notify the broadcast assistant that the right earphone has stopped synchronizing to the periodic broadcast.
  • the broadcast assistant searches for another headset that is in the same coordination set with the headset through the received notification information.
  • the broadcast assistant instructs the searched target earphone to stop synchronizing the BIS corresponding to the left channel, and start synchronizing the BIS corresponding to the monaural channel, and enter the monaural playback mode.
  • the right earphone sends notification information to the broadcast assistant to request the broadcast assistant to send broadcast synchronization information.
  • the notification information may carry a source address type (Source_Address_Type), a source address (Source_Address), an advertisement set identifier (Advertising_SID), and the like.
  • the broadcast assistant sends broadcast synchronization information (SyncInfo) to the right earphone.
  • Synchronization information Synchronization information
  • the right earphone starts to synchronize with the BIS corresponding to the right channel and enters the music playing state.
  • the broadcast assistant searches for another headset that is in the same coordination set with the headset through the received feature information.
  • the broadcast assistant instructs the searched target earphone to stop synchronizing the BIS corresponding to the monaural channel, and start synchronizing the BIS corresponding to the left channel, and enter the binaural playback mode.
  • the solutions of the embodiments of the present application support the solution of switching between monaural playback and binaural playback of TWS Bluetooth headsets based on LE broadcast audio, ensuring that TWS products based on next-generation Bluetooth audio provide a good consumer user experience.
  • FIG. 7 is a schematic block diagram of a control device 50 according to an embodiment of the present application.
  • the control device 50 may include:
  • a receiving unit 51 configured to receive notification information from the first broadcast receiver
  • the control unit 52 is configured to control the broadcast synchronization stream BIS synchronized by the second broadcast receiver based on the notification information.
  • control device further includes:
  • the search unit 53 is configured to search for a second broadcast receiver that is in the same coordination set as the first broadcast receiver.
  • the notification information is used to notify the control device that the first broadcast receiver stops synchronizing to the periodic broadcast, and the control unit is also used to instruct the second broadcast receiver to stop synchronizing the BIS corresponding to the second channel, and start Synchronized mono corresponding BIS.
  • the notification information is used to request the control device to send broadcast synchronization information
  • the control unit is also used to send broadcast synchronization information to the first broadcast receiver to instruct the first broadcast receiver to start synchronizing the first sound channel.
  • control unit is further configured to instruct the second broadcast receiver to stop synchronizing the BIS corresponding to the mono channel, and start synchronizing the BIS corresponding to the second channel.
  • the notification information includes at least one of source address type, source address and advertisement set identifier.
  • the first broadcast receiver and the second broadcast receiver are earphone devices.
  • the first channel is a left channel
  • the second channel is a right channel
  • the first broadcast receiver is a left earphone device
  • the second broadcast receiver is a right earphone device.
  • the first channel is a right channel
  • the second channel is a left channel
  • the first broadcast receiver is a right earphone device
  • the second broadcast receiver is a left earphone device.
  • control unit is further configured to establish a synchronization relationship between the broadcast source, the first broadcast receiver and the second broadcast receiver, to instruct the first broadcast receiver to synchronize to the BIS corresponding to the first channel, and the first broadcast receiver to synchronize to the BIS corresponding to the first channel.
  • the two broadcast receivers are synchronized to the BIS corresponding to the second channel.
  • control device is a broadcast assistant.
  • control device includes a broadcast source and a broadcast assistant.
  • the periodic broadcast received by the broadcast assistant from the broadcast source includes at least one of the following BISs:
  • the broadcast source is a broadcast audio source
  • the broadcast receiver is a broadcast audio receiver
  • the control device 50 in this embodiment of the present application can implement the corresponding functions of the control device in the foregoing method embodiments.
  • each module (submodule, unit, or component, etc.) in the control device 50 reference may be made to the corresponding descriptions in the foregoing method embodiments, which are not repeated here.
  • the functions described by the various modules (submodules, units or components, etc.) in the control device 50 of the application embodiments may be implemented by different modules (submodules, units or components, etc.), or may be implemented by the same module Module (submodule, unit or component, etc.) implementation.
  • FIG. 9 is a schematic block diagram of a first broadcast receiver 60 according to an embodiment of the present application.
  • the first broadcast receiver 60 may include:
  • a sending unit 61 configured to send notification information to the control device
  • the notification information is used to instruct the control device to control the broadcast synchronization stream BIS synchronized by the second broadcast receiver.
  • the second broadcast receiver and the first broadcast receiver are in the same coordination set.
  • the first broadcast receiver further includes:
  • the control unit 62 is configured to stop synchronizing to periodic broadcasting, and the notification information is used to notify the control device that the first broadcast receiver stops synchronizing to periodic broadcasting.
  • the notification information is used to request the control device to send broadcast synchronization information
  • the first broadcast receiver further includes:
  • the receiving unit 63 is configured to receive the broadcast synchronization information from the control device, and start to synchronize the BIS corresponding to the first channel.
  • the first broadcast receiver and the second broadcast receiver are earphone devices.
  • the first channel is a left channel
  • the second channel is a right channel
  • the first broadcast receiver is a left earphone device
  • the second broadcast receiver is a right earphone device.
  • the first channel is a right channel
  • the second channel is a left channel
  • the first broadcast receiver is a right earphone device
  • the second broadcast receiver is a left earphone device.
  • control device is a broadcast assistant.
  • control device includes a broadcast source and a broadcast assistant.
  • the periodic broadcast received by the broadcast assistant from the broadcast source includes at least one of the following BISs:
  • the broadcast source is a broadcast audio source
  • the broadcast receiver is a broadcast audio receiver
  • the first broadcast receiver 60 in this embodiment of the present application can implement the corresponding functions of the first broadcast receiver in the foregoing method embodiments.
  • each module (sub-module, unit or component, etc.) in the first broadcast receiver 60 reference may be made to the corresponding descriptions in the above method embodiments, which will not be repeated here.
  • the functions described by each module (submodule, unit, or component, etc.) in the first broadcast receiver 60 of the application embodiment may be implemented by different modules (submodule, unit, or component, etc.), or Implemented by the same module (submodule, unit or component, etc.).
  • FIG. 11 is a schematic block diagram of a second broadcast receiver 70 according to an embodiment of the present application.
  • the second broadcast receiver 70 may include:
  • a receiving unit 71 configured to receive indication information from the control device, where the indication information is determined by the control device based on the notification information of the first broadcast receiver;
  • the control unit 72 is configured to synchronously broadcast the synchronous stream BIS based on the indication information.
  • the notification information is used to notify the control device that the first broadcast receiver stops synchronizing to the periodic broadcast, and the control unit is also used to stop synchronizing the BIS corresponding to the second channel, and start synchronizing the BIS corresponding to the monophonic channel. .
  • the notification information is used to request the control device to send broadcast synchronization information
  • the control unit is further used to stop synchronizing the BIS corresponding to the mono channel, and start synchronizing the BIS corresponding to the second channel.
  • the first broadcast receiver and the second broadcast receiver are earphone devices.
  • the first channel is a left channel
  • the second channel is a right channel
  • the first broadcast receiver is a left earphone device
  • the second broadcast receiver is a right earphone device.
  • the first channel is a right channel
  • the second channel is a left channel
  • the first broadcast receiver is a right earphone device
  • the second broadcast receiver is a left earphone device.
  • control device is a broadcast assistant.
  • control device includes a broadcast source and a broadcast assistant.
  • the periodic broadcast received by the broadcast assistant from the broadcast source includes at least one of the following BISs:
  • the broadcast source is a broadcast audio source
  • the broadcast receiver is a broadcast audio receiver
  • the second broadcast receiver 70 in this embodiment of the present application can implement the corresponding functions of the second broadcast receiver in the foregoing method embodiments.
  • each module (submodule, unit, or component, etc.) in the second broadcast receiver 70 reference may be made to the corresponding descriptions in the above method embodiments, which will not be repeated here.
  • the functions described by each module (sub-module, unit, or component, etc.) in the second broadcast receiver 70 of the application embodiment may be implemented by different modules (sub-module, unit, or component, etc.), or Implemented by the same module (submodule, unit or component, etc.).
  • FIG. 12 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
  • the communication device 600 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so that the communication device 600 implements the methods in the embodiments of the present application.
  • the communication device 600 may also include a memory 620 .
  • the processor 610 may call and run a computer program from the memory 620, so that the communication device 600 implements the methods in the embodiments of the present application.
  • the memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices .
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 600 may be the control device, the first broadcast receiver, or the second broadcast receiver in the embodiments of the present application, and the communication device 600 may implement the control device, the first broadcast receiver in each method of the embodiments of the present application.
  • the corresponding process implemented by a broadcast receiver or a second broadcast receiver will not be repeated here for brevity.
  • FIG. 13 is a schematic structural diagram of a chip 700 according to an embodiment of the present application.
  • the chip 700 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiments of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 may call and run a computer program from the memory 720 to implement the method executed by the control device, the first broadcast receiver or the second broadcast receiver in the embodiments of the present application.
  • the memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .
  • the chip 700 may further include an input interface 730 .
  • the processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the chip 700 may further include an output interface 740 .
  • the processor 710 may control the output interface 740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the chip can be applied to the control device, the first broadcast receiver, or the second broadcast receiver in the embodiments of the present application, and the chip can implement the control device, the first broadcast receiver in each method of the embodiments of the present application.
  • the corresponding process implemented by the receiver or the second broadcast receiver is not repeated here for brevity.
  • the chips applied to the control device, the first broadcast receiver or the second broadcast receiver may be the same chip or different chips.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an off-the-shelf programmable gate array (field programmable gate array, FPGA), an application specific integrated circuit (ASIC) or Other programmable logic devices, transistor logic devices, discrete hardware components, etc.
  • DSP digital signal processor
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • the general-purpose processor mentioned above may be a microprocessor or any conventional processor or the like.
  • the memory mentioned above may be either volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM).
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • FIG. 14 is a schematic block diagram of a communication system 800 according to an embodiment of the present application.
  • the communication system 800 includes a control device 810 , a first broadcast receiver 820 and a second broadcast receiver 830 .
  • control device 810 configured to receive notification information from the first broadcast receiver; the control device controls the broadcast synchronization stream BIS synchronized by the second broadcast receiver based on the notification information;
  • a first broadcast receiver 820 configured to send the notification information to the control device, where the notification information is used to instruct the control device to control the broadcast synchronization stream BIS synchronized by the second broadcast receiver;
  • the second broadcast receiver 830 is configured to receive indication information from the control device, where the indication information is determined by the control device based on the notification information of the first broadcast receiver; based on the indication information, the synchronous stream BIS is broadcast synchronously.
  • control device 810 can be used to implement the corresponding functions implemented by the control device in the above method
  • first broadcast receiver 820 can be used to implement the corresponding functions implemented by the first broadcast receiver in the above method
  • the second broadcast receiver 830 may be used to implement the corresponding functions implemented by the second broadcast receiver in the above method.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the procedures or functions according to the embodiments of the present application are generated in whole or in part.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored on or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted over a wire from a website site, computer, server or data center (eg coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) means to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media integrated.
  • the available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a Solid State Disk (SSD)), and the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium eg, a Solid State Disk (SSD)
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.

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Abstract

本申请涉及一种音频控制方法和设备。其中，该音频控制方法，包括：控制设备接收来自第一广播接收器的通知信息；该控制设备基于该通知信息控制第二广播接收器同步的广播同步流BIS。本申请实施例，基于来自第一广播接收器的通知信息，控制第二广播接收器同步的BIS，可以便捷地支持设备的音频控制。

Description

音频控制方法和设备 技术领域
本申请涉及通信领域，更具体地，涉及一种音频控制方法和设备。
背景技术
蓝牙低功耗(Bluetooth Low Energy，BLE)也称低功耗蓝牙，可以用于医疗保健、运动健身、信标、安防、家庭娱乐等领域。例如，蓝牙耳机可以与音乐播放设备建立无线连接，以播放音乐。再如，蓝牙耳机可以与手机建立无线连接，以接打电话。如何基于BLE进行音频播放的控制是需要考虑的问题。
发明内容
本申请实施例提供一种音频控制方法和设备，可以便捷地支持设备的音频控制。
本申请实施例提供一种音频控制方法，包括：
控制设备接收来自第一广播接收器的通知信息；
该控制设备基于该通知信息控制第二广播接收器同步的广播同步流BIS。
本申请实施例提供一种音频控制方法，包括：
第一广播接收器向控制设备发送通知信息；
该通知信息用于指示该控制设备控制第二广播接收器同步的广播同步流BIS。
本申请实施例提供一种音频控制方法，包括：
第二广播接收器接收来自控制设备的指示信息，该指示信息是该控制设备基于第一广播接收器的通知信息确定的；
该第二广播接收器基于该指示信息同步广播同步流BIS。
本申请实施例提供一种控制设备，包括：
接收单元，用于接收来自第一广播接收器的通知信息；
控制单元，用于基于该通知信息控制第二广播接收器同步的广播同步流BIS。
本申请实施例提供一种第一广播接收器，包括：
发送单元，用于向控制设备发送通知信息；
该通知信息用于指示该控制设备控制第二广播接收器同步的广播同步流BIS。
本申请实施例提供一种第二广播接收器，包括：
接收单元，用于接收来自控制设备的指示信息，该指示信息是该控制设备基于第一广播接收器的通知信息确定的；
控制单元，用于基于该指示信息同步广播同步流BIS。
本申请实施例提供一种控制设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，以使该控制设备执行上述的音频控制方法。
本申请实施例提供一种音频接收设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，以使该音频接收设备执行上述的音频控制方法。
本申请实施例提供一种芯片，用于实现上述的音频控制方法。
具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行上述的音频控制方法。
本申请实施例提供一种计算机可读存储介质，用于存储计算机程序，当该计算机程序被设备运行时使得该设备执行上述的音频控制方法。
本申请实施例提供一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述的音频控制方法。
本申请实施例提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述的音频控制方法。
本申请实施例，基于来自第一广播接收器的通知信息，控制第二广播接收器同步的BIS，可以便捷地支持设备的音频控制。
附图说明
图1a和图1b是根据本申请实施例的应用场景的示意图。
图2是根据本申请一实施例的音频控制方法的示意性流程图。
图3是根据本申请另一实施例的音频控制方法的示意性流程图。
图4是根据本申请另一实施例的音频控制方法的示意性流程图。
图5是方案1的示意性流程图。
图6是方案2的示意性流程图。
图7是根据本申请一实施例的控制设备的示意性框图。
图8是根据本申请另一实施例的控制设备的示意性框图。
图9是根据本申请一实施例的第一广播接收器的示意性框图。
图10是根据本申请另一实施例的第一广播接收器的示意性框图。
图11是根据本申请一实施例的第二广播接收器的示意性框图。
图12是根据本申请实施例的通信设备示意性框图。
图13是根据本申请实施例的芯片的示意性框图。
图14是根据本申请实施例的通信系统的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum，NR-U)系统、非地面通信网络(Non-Terrestrial Networks，NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、第五代通信(5th-Generation，5G)系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，车辆间(Vehicle to Vehicle，V2V)通信，或车联网(Vehicle to everything，V2X)通信等，本申请实施例也可以应用于这些通信系统。
可选地，本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation，CA)场景，也可以应用于双连接(Dual Connectivity，DC)场景，还可以应用于独立(Standalone，SA)布网场景。
可选地，本申请实施例中的通信系统可以应用于非授权频谱，其中，非授权频谱也可以认为是共享频谱；或者，本申请实施例中的通信系统也可以应用于授权频谱，其中，授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例，其中，终端设备也可以称为用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是WLAN中的站点(STAION，ST)，可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备，或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端设备等。
在本申请实施例中，终端设备可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中，终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
在本申请实施例中，网络设备可以是用于与移动设备通信的设备，网络设备可以是WLAN中的接入点(Access Point，AP)，GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB，NB)，还可以是LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者车载设备、可穿戴设备以及NR网络中的网络设备(gNB)或者未来演进的 PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定，在本申请实施例中，网络设备可以具有移动特性，例如网络设备可以为移动的设备。可选地，网络设备可以为卫星、气球站。例如，卫星可以为低地球轨道(low earth orbit，LEO)卫星、中地球轨道(medium earth orbit，MEO)卫星、地球同步轨道(geostationary earth orbit，GEO)卫星、高椭圆轨道(High Elliptical Orbit，HEO)卫星等。可选地，网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中，网络设备可以为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(Small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
在本申请实施例的描述中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
为便于理解本申请实施例的技术方案，以下对本申请实施例的相关技术进行说明，以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合，其均属于本申请实施例的保护范围。
LE音频(Audio)为新一代蓝牙音频技术，可以为无线音频市场提供更强大的蓝牙功能，例如包括：
全新更高品质、更高效的音频编解码器；
同步传输多个音频流的能力；
新的蓝牙音频广播功能；
低功耗蓝牙传输音频的能力。
在一种示例中，参见图1a，LE音频系统中可以包括广播源(Broadcast Source)、广播接收器(Broadcast Sink)以及广播助理(Broadcast Assistant)三个角色。其中，广播源和广播助理角色可以位于不同的设备上。广播源也可以称为广播音频源，可以设置在例如电视(TV)、手机等具有音频播放功能的终端设备中。广播源所在的设备可以作为广播媒体发送端(Broadcast Media Sender，BMS)。广播助理可以设置在具有控制功能的设备上。广播接收器也可以称为广播音频接收器，包括耳机例如左右耳机(Earbud Left/Right)等设备。广播音频接收器所在的设备可以作为广播媒体接收端(Broadcast Media Receiver，BMR)。广播音频接收器允许外部设备广播助理来代替自己完成广播音频源扫描检测的工作。广播助理检测到广播通过LE连接(Connection)直接将广播音频源的同步信息发送给两个耳机开始双耳播放，在广播助理协助下可以完成单耳双耳的切换。
在另一种示例中，如图1b所示，该示例与图1a基本原理相同，主要区别是LE音频系统的广播源 (Broadcast Source)和广播助理(Broadcast Assistant)角色可以位于同一台设备上。广播源和广播助理所在的设备可以作为BMS。广播音频接收器所在的设备可以作为BMR。
在本申请实施例中，广播助理指示左右耳机(Earbud Left/Right)分别同步左右声道进入双耳播放模式。
如果用户触发切换单耳模式，广播助理收到停止播放的耳机设备发送的通知(Notification)信息，查找和该耳机处于同一协调集合(Coordinated Set)的另外一个耳机，并指示该耳机停止同步当前声道对应的BIS并开始同步单声道对应的BIS。
如果用户切换到双耳模式，新上线的耳机向广播助理发送通知(Notification)信息请求广播同步信息。广播助理发送同步信息(SyncInfo)给该耳机，该耳机开始同步目标声道(左声道或右声道)对应的BIS。广播助理查找和该耳机处于同一协调集合的另外一个耳机，并指示该耳机停止同步单声道对应的BIS并开始同步目标声道(左声道或右声道)对应的BIS。
LE Audio相关的Profile/Service(配置文件/服务)尚没有基于广播音频的TWS耳机双耳单耳播放模式的切换机制。
图2是根据本申请一实施例的音频控制方法200的示意性流程图。该方法可选地可以应用于图1a和图1b所示的系统，但并不仅限于此。该方法包括以下内容的至少部分内容。
S210、控制设备接收来自第一广播接收器的通知信息。
S220、该控制设备基于该通知信息控制第二广播接收器同步的广播同步流BIS。
示例性地，控制设备例如广播助理可以接收第一广播接收器例如蓝牙耳机的通知消息。通知消息中可以包括该第一广播接收器的标识、该第一广播接收器所归属的协调集合的标识或第二广播接收器的标识中的至少之一。控制设备基于通知消息中的标识查找到对应的第二广播接收器后，可以向该第二广播接收器发送控制命令，以控制该第二广播接收器同步BIS。
可选地，该方法还包括：
该控制设备查找与该第一广播接收器处于同一协调集合的第二广播接收器。
示例性地，协调集合可以用于配置为支持特定场景的一组设备。例如，协调集合可以包括一对助听器、一对耳机(耳塞)或一个扬声器组，协调集合中的设备可以接收多声道音频并以协调的方式对控制命令作出反应。协调集合可以具有对应的标识。在通知信息中可以包括协调集合的标识，控制设备收到通知消息后，可以基于第一广播接收器所归属的协调集合的标识确定协调集合，然后在查找该协调集合中包括的第二广播接收器的标识，进而控制设备可以控制该第二广播接收器同步的BIS。
可选地，该通知信息用于通知该控制设备该第一广播接收器停止同步到周期广播，该控制设备基于该通知信息控制该第二广播接收器同步的BIS，包括：
该控制设备指示该第二广播接收器停止同步第二声道对应的BIS，并开始同步单声道对应的BIS。
示例性地，周期广播中可以包括多种类型的BIS，例如，左声道对应的BIS，右声道对应的BIS和单声道对应的BIS。第一广播接收器停止同步到周期广播，即停止同步BIS。
在一种场景中，如果需要从双耳播放模式切换成单耳播放模式。第一广播接收器例如耳机还可以通知控制设备，需要切换成单耳播放模式。通知的方式可以有多种。例如，在单耳播放模式下，如果控制设备收到第一广播接收器停止同步到周期广播的通知信息，也就是说，第一广播接收器停止播放第一声道对应的BIS，可以判定为需要切换为单耳播放模式。再如，在通知消息中携带单耳播放模式的指示信 息。再如，在耳机上设置有触发控件，在触发控件被触发的情况下，发送模式切换的指示信息。再如，在耳机设置有传感器例如红外感应器、重力感应器等，能够检测到耳机被从耳中取出或塞入耳中的状态，则可以模式切换的指示信息。进一步地，如果是处于双耳播放模式的两个耳机中的一个从耳中取出的状态，则该被取出的耳机可以发出切换为单耳播放模式的指示信息。
在需要切换为单耳播放模式的情况下，控制设备可以向第二广播接收器发送控制命令。该控制命令可以指示第二广播接收器停止播放第二声道对应的BIS，并开始同步单声道对应的BIS。
可选地，该通知信息用于请求该控制设备发送广播同步信息，该方法还包括：
该控制设备向该第一广播接收器发送广播同步信息，以指示该第一广播接收器开始同步第一声道对应的BIS。
在另一种场景中，如果需要从单耳播放模式切换成双耳播放模式。第一广播接收器例如耳机还可以通知控制设备，需要切换成双耳播放模式。通知的方式可以有多种。例如，在单耳播放模式下，如果控制设备收到第一广播接收器请求该控制设备发送广播同步信息的通知信息，可以判定为需要切换为双耳播放模式。再如，在通知消息中携带双耳播放模式的指示信息。再如，在耳机上设置有触发控件，在触发控件被触发的情况下，发送模式切换的指示信息。再如，在耳机设置有传感器例如红外感应器、重力感应器等，能够检测到耳机被从耳中取出或塞入耳中的状态，则可以模式切换的指示信息。进一步地，如果是处于单耳播放模式的一个耳机配对的另一个耳机被塞入耳中的状态，则被塞入耳中的耳机可以发出切换为双耳模式的指示信息。
可选地，该控制设备基于该通知信息控制该第二广播接收器同步的BIS，包括：
该控制设备指示该第二广播接收器停止同步单声道对应的BIS，并开始同步第二声道对应的BIS。
示例性地，如果从单耳播放模式切换为双耳播放模式，控制设备不仅向第一广播接收器发送广播同步信息，还可以向第二广播接收器发送控制命令。该控制命令，可以指示第二广播接收器停止同步单声道对应的BIS，并开始同步第二声道对应的BIS。这样，第一广播接收器同步第一声道对应的BIS，第二广播接收器同步第二声道对应的BIS，则成功切换为双耳播放模式。
可选地，该通知信息中包括源地址类型、源地址和广告集标识(Advertising_SID)的至少之一。其中，广告集标识也可以称为广播集标识。例如，通知信息中包括的地址类型、地址、该SID可以用来标识一个广播源；其中，地址类型和地址可以用于标识出广播源的设备；SID可以用于标识出该设备具体的广播实例(一台设备有可能部署多于一个广播实例)。
可选地，该第一广播接收器和该第二广播接收器为耳机设备。
可选地，该第一声道为左声道，第二声道为右声道，该第一广播接收器为左耳机设备，该第二广播接收器为右耳机设备。
可选地，该第一声道为右声道，第二声道为左声道，该第一广播接收器为右耳机设备，该第二广播接收器为左耳机设备。
可选地，该方法还包括：
该控制设备建立广播源与第一广播接收器以及第二广播接收器之间的同步关系，以指示该第一广播接收器同步到第一声道对应的BIS，第二广播接收器同步到第二声道对应的BIS。
示例性地，控制设备可以向同一协调集合中的一组广播接收器发送控制命令，以建立广播源例如电视或手机等音频播放设备与一组广播接收器的同步关系。例如，控制设备向左耳机设备发送同步到左声 道对应的BIS的控制命令，向右耳机设备发送同步到右声道对应的BIS的控制命令。这样可以实现左右耳机设备的双耳播放模式。
可选地，该控制设备为广播助理。
示例性地，广播助理可以设置在控制设备中，广播源可以设置的另一个设备中。这样，广播助理和广播源可以独立的设备。这样，广播助理通过扫描(scan)发现并同步到广播源，广播助理和广播接收器之间可以建立连接，由广播助理通过该连接将同步信息发送给广播接收器。
可选地，该控制设备包括广播源和广播助理。
示例性地，广播助理和广播源可以设置在同一个设备，例如本申请实施例的控制设备中。
可选地，该广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
第一声道对应的BIS；
第二声道对应的BIS；
单声道对应的BIS。
可选地，该广播源为广播音频源。
本申请实施例，基于来自第一广播接收器的通知信息，控制第二广播接收器同步的BIS，可以便捷地支持设备的音频控制。例如，对于一组蓝牙耳机，可以基于一个耳机的通知信息，控制另一个耳机同步的BIS，从而可以在双耳播放模式和单耳播放模式之间方便快捷的切换，优化音频播放效果，提高用户体验。
图3是根据本申请一实施例的音频控制方法300的示意性流程图。该方法可选地可以应用于图1a和图1b所示的系统，但并不仅限于此。该方法包括以下内容的至少部分内容。
S310、第一广播接收器向控制设备发送通知信息。
其中，该通知信息可以用于指示该控制设备控制第二广播接收器同步的广播同步流BIS。
可选地，该第二广播接收器与该第一广播接收器处于同一协调集合。
可选地，该方法还包括：
该第一广播接收器停止同步到周期广播，该通知信息用于通知该控制设备该第一广播接收器停止同步到周期广播。
可选地，该通知信息用于请求该控制设备发送广播同步信息，该方法还包括：
该第一广播接收器接收来自该控制设备的广播同步信息，并开始同步第一声道对应的BIS。
可选地，该第一广播接收器和该第二广播接收器为耳机设备。
可选地，该第一声道为左声道，第二声道为右声道，该第一广播接收器为左耳机设备，该第二广播接收器为右耳机设备。
可选地，该第一声道为右声道，第二声道为左声道，该第一广播接收器为右耳机设备，该第二广播接收器为左耳机设备。
可选地，该控制设备为广播助理。
可选地，该控制设备包括广播源和广播助理。
可选地，该广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
第一声道对应的BIS；
第二声道对应的BIS；
单声道对应的BIS。
可选地，该广播源为广播音频源，该广播接收器为广播音频接收器。
本实施例的第一广播接收器执行方法300的具体示例可以参见上述方法200的中关于第一广播接收器例如第一耳机设备的相关描述，为了简洁，在此不再赘述。
图4是根据本申请一实施例的音频控制方法400的示意性流程图。该方法可选地可以应用于图1a和图1b所示的系统，但并不仅限于此。该方法包括以下内容的至少部分内容。
S410、第二广播接收器接收来自控制设备的指示信息，该指示信息是该控制设备基于第一广播接收器的通知信息确定的。
S420、该第二广播接收器基于该指示信息同步广播同步流BIS。
可选地，该通知信息用于通知该控制设备该第一广播接收器停止同步到周期广播，该第二广播接收器基于该指示信息同步BIS，包括：
该第二广播接收器停止同步第二声道对应的BIS，并开始同步单声道对应的BIS。
可选地，该通知信息用于请求该控制设备发送广播同步信息，该第二广播接收器基于该指示信息同步BIS，包括：
该第二广播接收器停止同步单声道对应的BIS，并开始同步第二声道对应的BIS。
可选地，该第一广播接收器和该第二广播接收器为耳机设备。
可选地，该第一声道为左声道，第二声道为右声道，该第一广播接收器为左耳机设备，该第二广播接收器为右耳机设备。
可选地，该第一声道为右声道，第二声道为左声道，该第一广播接收器为右耳机设备，该第二广播接收器为左耳机设备。
可选地，该控制设备为广播助理。
可选地，该控制设备包括广播源和广播助理。
可选地，该广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
第一声道对应的BIS；
第二声道对应的BIS；
单声道对应的BIS。
可选地，该广播源为广播音频源，该广播接收器为广播音频接收器。
本实施例的第二广播接收器执行方法400的具体示例可以参见上述方法200的中关于第二广播接收器例如第二耳机设备的相关描述，为了简洁，在此不再赘述。
在一种应用场景中，本申请的音频控制方法，可以适用于基于低功耗(Low Energy，LE)广播(Broadcast)音频的单耳播放和双耳播放之间切换。例如，适用于真无线立体声(True Wireless Stereo，TWS)蓝牙耳机的单耳播放和双耳播放之间切换。
LE Audio技术包括一系列的配置文件/服务(Profile/Service)，每个服务负责不同的功能。LE广播音频(Broadcast audio)涉及的主要的Profile/Service包括BAP(Basic Audio Profile，基本音频配置文件)、BASS(Broadcast Audio Scan Service，广播音频扫描服务)，但并没有设置TWS产品的单耳双耳的切换机制。在例如TWS耳机产品中，单耳双耳之间切换播放模式是一项重要功能。
本申请实施例可以提供基于广播音频的TWS耳机双耳单耳播放模式的切换机制，示例如下。
方案1：
广播源(Broadcast Source)配置周期广播，该周期广播中可以包含三个BIS音频流，分别对应左声道、右声道和单声道。
该方案适用于广播源和广播助理分别处于不同设备的情况。如图5所示，
该方案的流程主要可以包括：
S11、广播接收器例如左右耳机(Earbud Left/Right)在广播助理(Broadcast Assistant)协助下与广播源(Broadcast Source)建立同步关系(即Broadcast Audio Stream synchronization，广播音频流同步)。左耳机和右耳机分别同步到左右声道对应的BIS，处于双耳模式播放音乐中。例如，左右耳机分别开始播放广告(start advertising)。
此外，广播助理可以执行协调集合发现和集合成员发现过程(Set Discovery and Set Members Discovery)。
广播助理扫描广播源(Scanning Broadcast Source)，接收广播源向广播助理发送的周期性广告(Periodic Advertising，PA)。如果广播助理扫描到增加广播源(Add Source)，可以指示耳机去同步PA，并且同步目标声道对应的BIS。例如，指示左耳机去同步PA，并且同步左声道对应的BIS；指示右耳机去同步PA，并且同步右声道对应的BIS。
广播助理向左右耳机传输同步信息(SyncInfo transfers)，并且传输广播代码(Broadcast Code transfers)。左右耳机分别播放媒体流(Media Streaming)。
在双耳播放模式。广播源与左右耳机之间进行广播音频流同步(Broadcast Audio Stream synchronization)。
S12、用户触发切换单耳播放模式。例如，用户取下一个耳机或者触发模式切换的控件等，可以触发切换单耳播放模式，例如使得右耳机进入空闲态(idle)。下面以用户触发右耳机为例进行说明，触发左耳机的原理是类似的，不重复举例。
S13、右耳机发送通知(notification)信息，以通知广播助理该右耳机已经停止同步到周期广播。例如，右耳机发送的通知消息中包括周期广播同步状态PA_Sync_State(Not synchronized to PA)，表示不同步到周期广播。
S14、广播助理通过收到的通知信息查找和该耳机处于同一协调集合(Coordinated Set)的另外一个耳机(可以称为目标耳机)。
S15、广播助理修改广播源(Modify Source)，指示查找的目标耳机停止同步左声道对应的BIS，并开始同步单声道对应的BIS，进入单耳播放模式。目标耳机例如左耳机更新媒体流(Update Media Streaming)。在这个模式下，广播源与左耳机之间进行广播音频流同步(Broadcast Audio Stream synchronization)。
S16、用户触发切换双耳播放模式。例如，用户在单耳播放模式下戴上另一个耳机或者触发模式切换的控件等，可以触发切换双耳播放模式。假设用户触发还是右耳机，触发双耳播放模式，右耳机进入激活态(active)。
S17、右耳机发送向广播助理通知信息，以请求广播助理发送广播同步信息。通知信息中可以携带源地址类型(Source_Address_Type)、源地址(Source_Address)和广告集标识(Advertising_SID)等。例如，来自右耳机通知消息中还可以包括周期广播同步状态PA_Sync_State(SyncInfo Request)，表示右 耳机请求广播同步信息
S18、广播助理将广播同步信息(SyncInfo)发送给右耳机。
S19、右耳机开始同步右声道对应的BIS进入音乐播放状态(播放Media Streaming)。
S20、广播助理通过收到的通知信息查找和该耳机处于同一协调集合的另外一个耳机。
S21、广播助理可以修改广播源(Modify Source)，指示查找的目标耳机停止同步单声道对应的BIS，并开始同步左声道对应的BIS，进入双耳播放模式；目标耳机例如左耳机更新媒体流(Update Media Streaming)。在这个模式下，广播源与左右耳机之间进行广播音频流同步(Broadcast Audio Stream synchronization)。
方案2：
广播源配置周期广播，该周期广播中可以包含三个BIS音频流，分别对应左声道、右声道和单声道。
该方案适用于Broadcast Source和Broadcast Assistant处于同一设备的情况。如图6所示，该方案的流程主要可以包括：
S31、广播接收器例如左右耳机(Earbud Left/Right)在广播助理(Broadcast Assistant)协助下与广播源(Broadcast Source)建立同步关系(即Broadcast Audio Stream synchronization，广播音频流同步)。左耳机和右耳机分别同步到左右声道对应的BIS，处于双耳模式播放音乐中。
广播助理和广播源可以执行协调集合发现和集合成员发现过程(Set Discovery and Set Members Discovery)。
S32、用户触发切换单耳播放模式。
S33、右耳机发送通知信息，以通知广播助理该右耳机已经停止同步到周期广播。
S34、广播助理通过收到的通知信息查找和该耳机处于同一协调集合的另外一个耳机。
S35、广播助理指示查找的目标耳机停止同步左声道对应的BIS，并开始同步单声道对应的BIS，进入单耳播放模式。
S36、用户触发切换双耳播放模式。
S37、右耳机发送向广播助理通知信息，以请求广播助理发送广播同步信息。通知信息中可以携带源地址类型(Source_Address_Type)、源地址(Source_Address)和广告集标识(Advertising_SID)等。
S38、广播助理将广播同步信息(SyncInfo)发送给右耳机。
S39、右耳机开始同步右声道对应的BIS进入音乐播放状态。
S40、广播助理通过收到的特征信息查找和该耳机处于同一协调集合的另外一个耳机。
S41、广播助理指示查找的目标耳机停止同步单声道对应的BIS，并开始同步左声道对应的BIS，进入双耳播放模式。
本申请实施例的方案，支持基于LE广播音频的TWS蓝牙耳机的单耳播放和双耳播放之间切换的方案，保证基于下一代蓝牙音频的TWS产品提供良好的消费者用户体验。
图7是根据本申请一实施例的控制设备50的示意性框图。该控制设备50可以包括：
接收单元51，用于接收来自第一广播接收器的通知信息；
控制单元52，用于基于该通知信息控制第二广播接收器同步的广播同步流BIS。
可选地，如图8所示，该控制设备还包括：
查找单元53，用于查找与该第一广播接收器处于同一协调集合的第二广播接收器。
可选地，该通知信息用于通知该控制设备该第一广播接收器停止同步到周期广播，该控制单元还用于指示该第二广播接收器停止同步第二声道对应的BIS，并开始同步单声道对应的BIS。
可选地，该通知信息用于请求该控制设备发送广播同步信息，该控制单元还用于向该第一广播接收器发送广播同步信息，以指示该第一广播接收器开始同步第一声道对应的BIS。
可选地，该控制单元还用于指示该第二广播接收器停止同步单声道对应的BIS，并开始同步第二声道对应的BIS。
可选地，该通知信息中包括源地址类型、源地址和广告集标识的至少之一。
可选地，该第一广播接收器和该第二广播接收器为耳机设备。
可选地，该第一声道为左声道，第二声道为右声道，该第一广播接收器为左耳机设备，该第二广播接收器为右耳机设备。
可选地，该第一声道为右声道，第二声道为左声道，该第一广播接收器为右耳机设备，该第二广播接收器为左耳机设备。
可选地，该控制单元还用于建立广播源与第一广播接收器以及第二广播接收器之间的同步关系，以指示该第一广播接收器同步到第一声道对应的BIS，第二广播接收器同步到第二声道对应的BIS。
可选地，该控制设备为广播助理。
可选地，该控制设备包括广播源和广播助理。
可选地，该广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
第一声道对应的BIS；
第二声道对应的BIS；
单声道对应的BIS。
可选地，该广播源为广播音频源，该广播接收器为广播音频接收器。
本申请实施例的控制设备50能够实现前述的方法实施例中的控制设备的对应功能。该控制设备50中的各个模块(子模块、单元或组件等)对应的流程、功能、实现方式以及有益效果，可参见上述方法实施例中的对应描述，在此不再赘述。需要说明，关于申请实施例的控制设备50中的各个模块(子模块、单元或组件等)所描述的功能，可以由不同的模块(子模块、单元或组件等)实现，也可以由同一个模块(子模块、单元或组件等)实现。
图9是根据本申请一实施例的第一广播接收器60的示意性框图。该第一广播接收器60可以包括：
发送单元61，用于向控制设备发送通知信息；
该通知信息用于指示该控制设备控制第二广播接收器同步的广播同步流BIS。
可选地，该第二广播接收器与该第一广播接收器处于同一协调集合。
可选地，如图10所示，该第一广播接收器还包括：
控制单元62，用于停止同步到周期广播，该通知信息用于通知该控制设备该第一广播接收器停止同步到周期广播。
可选地，该通知信息用于请求该控制设备发送广播同步信息，该第一广播接收器还包括：
接收单元63，用于接收来自该控制设备的广播同步信息，并开始同步第一声道对应的BIS。
可选地，该第一广播接收器和该第二广播接收器为耳机设备。
可选地，该第一声道为左声道，第二声道为右声道，该第一广播接收器为左耳机设备，该第二广播接收器为右耳机设备。
可选地，该第一声道为右声道，第二声道为左声道，该第一广播接收器为右耳机设备，该第二广播接收器为左耳机设备。
可选地，该控制设备为广播助理。
可选地，该控制设备包括广播源和广播助理。
可选地，该广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
第一声道对应的BIS；
第二声道对应的BIS；
单声道对应的BIS。
可选地，该广播源为广播音频源，该广播接收器为广播音频接收器。
本申请实施例的第一广播接收器60能够实现前述的方法实施例中的第一广播接收器的对应功能。该第一广播接收器60中的各个模块(子模块、单元或组件等)对应的流程、功能、实现方式以及有益效果，可参见上述方法实施例中的对应描述，在此不再赘述。需要说明，关于申请实施例的第一广播接收器60中的各个模块(子模块、单元或组件等)所描述的功能，可以由不同的模块(子模块、单元或组件等)实现，也可以由同一个模块(子模块、单元或组件等)实现。
图11是根据本申请一实施例的第二广播接收器70的示意性框图。该第二广播接收器70可以包括：
接收单元71，用于接收来自控制设备的指示信息，该指示信息是该控制设备基于第一广播接收器的通知信息确定的；
控制单元72，用于基于该指示信息同步广播同步流BIS。
可选地，该通知信息用于通知该控制设备该第一广播接收器停止同步到周期广播，该控制单元还用于停止同步第二声道对应的BIS，并开始同步单声道对应的BIS。
可选地，该通知信息用于请求该控制设备发送广播同步信息，该控制单元还用于停止同步单声道对应的BIS，并开始同步第二声道对应的BIS。
可选地，该第一广播接收器和该第二广播接收器为耳机设备。
可选地，该第一声道为左声道，第二声道为右声道，该第一广播接收器为左耳机设备，该第二广播接收器为右耳机设备。
可选地，该第一声道为右声道，第二声道为左声道，该第一广播接收器为右耳机设备，该第二广播接收器为左耳机设备。
可选地，该控制设备为广播助理。
可选地，该控制设备包括广播源和广播助理。
可选地，该广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
第一声道对应的BIS；
第二声道对应的BIS；
单声道对应的BIS。
可选地，该广播源为广播音频源，该广播接收器为广播音频接收器。
本申请实施例的第二广播接收器70能够实现前述的方法实施例中的第二广播接收器的对应功能。 该第二广播接收器70中的各个模块(子模块、单元或组件等)对应的流程、功能、实现方式以及有益效果，可参见上述方法实施例中的对应描述，在此不再赘述。需要说明，关于申请实施例的第二广播接收器70中的各个模块(子模块、单元或组件等)所描述的功能，可以由不同的模块(子模块、单元或组件等)实现，也可以由同一个模块(子模块、单元或组件等)实现。
图12是根据本申请实施例的通信设备600示意性结构图。该通信设备600包括处理器610，处理器610可以从存储器中调用并运行计算机程序，以使通信设备600实现本申请实施例中的方法。
可选地，通信设备600还可以包括存储器620。其中，处理器610可以从存储器620中调用并运行计算机程序，以使通信设备600实现本申请实施例中的方法。其中，存储器620可以是独立于处理器610的一个单独的器件，也可以集成在处理器610中。
可选地，通信设备600还可以包括收发器630，处理器610可以控制该收发器630与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。其中，收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备600可为本申请实施例的控制设备、第一广播接收器或第二广播接收器，并且该通信设备600可以实现本申请实施例的各个方法中由控制设备、第一广播接收器或第二广播接收器实现的相应流程，为了简洁，在此不再赘述。
图13是根据本申请实施例的芯片700的示意性结构图。该芯片700包括处理器710，处理器710可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，芯片700还可以包括存储器720。其中，处理器710可以从存储器720中调用并运行计算机程序，以实现本申请实施例中由控制设备、第一广播接收器或第二广播接收器执行的方法。
其中，存储器720可以是独立于处理器710的一个单独的器件，也可以集成在处理器710中。
可选地，该芯片700还可以包括输入接口730。其中，处理器710可以控制该输入接口730与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该芯片700还可以包括输出接口740。其中，处理器710可以控制该输出接口740与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该芯片可应用于本申请实施例中的控制设备、第一广播接收器或第二广播接收器，并且该芯片可以实现本申请实施例的各个方法中由控制设备、第一广播接收器或第二广播接收器实现的相应流程，为了简洁，在此不再赘述。
应用于控制设备、第一广播接收器或第二广播接收器的芯片可以是相同的芯片或不同的芯片。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
上述提及的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、现成可编程门阵列(field programmable gate array，FPGA)、专用集成电路(application specific integrated circuit，ASIC)或者其他可编程逻辑器件、晶体管逻辑器件、分立硬件组件等。其中，上述提到的通用处理器可以是微处理器或者也可以是任何常规的处理器等。
上述提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random  access memory，RAM)。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
图14是根据本申请实施例的通信系统800的示意性框图。该通信系统800包括控制设备810、第一广播接收器820和第二广播接收器830。
控制设备810，用于接收来自第一广播接收器的通知信息；该控制设备基于该通知信息控制第二广播接收器同步的广播同步流BIS；
第一广播接收器820，用于向控制设备发送该通知信息，该通知信息用于指示该控制设备控制第二广播接收器同步的广播同步流BIS；
第二广播接收器830，用于接收来自控制设备的指示信息，该指示信息是该控制设备基于第一广播接收器的通知信息确定的；基于该指示信息同步广播同步流BIS。
其中，该控制设备810可以用于实现上述方法中由控制设备实现的相应的功能，该第一广播接收器820可以用于实现上述方法中由第一广播接收器实现的相应的功能，以及该第二广播接收器830可以用于实现上述方法中由第二广播接收器实现的相应的功能。为了简洁，在此不再赘述。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机程序指令时，全部或部分地产生按照本申请实施例中的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(Solid State Disk，SSD))等。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以该权利要求的保护范围为准。

Claims (80)

  1. 一种音频控制方法，包括：
    控制设备接收来自第一广播接收器的通知信息；
    所述控制设备基于所述通知信息控制第二广播接收器同步的广播同步流BIS。
  2. 根据权利要求1所述的方法，其中，所述方法还包括：
    所述控制设备查找与所述第一广播接收器处于同一协调集合的第二广播接收器。
  3. 根据权利要求1所述的方法，其中，所述通知信息用于通知所述控制设备所述第一广播接收器停止同步到周期广播，所述控制设备基于所述通知信息控制所述第二广播接收器同步的BIS，包括：
    所述控制设备指示所述第二广播接收器停止同步第二声道对应的BIS，并开始同步单声道对应的BIS。
  4. 根据权利要求1所述的方法，其中，所述通知信息用于请求所述控制设备发送广播同步信息，所述方法还包括：
    所述控制设备向所述第一广播接收器发送广播同步信息，以指示所述第一广播接收器开始同步第一声道对应的BIS。
  5. 根据权利要求4所述的方法，其中，所述控制设备基于所述通知信息控制所述第二广播接收器同步的BIS，包括：
    所述控制设备指示所述第二广播接收器停止同步单声道对应的BIS，并开始同步第二声道对应的BIS。
  6. 根据权利要求4或5所述的方法，其中，所述通知信息中包括源地址类型、源地址和广告集标识的至少之一。
  7. 根据权利要求1至6中任一项所述的方法，其中，所述第一广播接收器和所述第二广播接收器为耳机设备。
  8. 根据权利要求7所述的方法，其中，所述第一声道为左声道，第二声道为右声道，所述第一广播接收器为左耳机设备，所述第二广播接收器为右耳机设备。
  9. 根据权利要求7所述的方法，其中，所述第一声道为右声道，第二声道为左声道，所述第一广播接收器为右耳机设备，所述第二广播接收器为左耳机设备。
  10. 根据权利要求1至9中任一项所述的方法，其中，所述方法还包括：
    所述控制设备建立广播源与第一广播接收器以及第二广播接收器之间的同步关系，以指示所述第一广播接收器同步到第一声道对应的BIS，第二广播接收器同步到第二声道对应的BIS。
  11. 根据权利要求1至10中任一项所述的方法，其中，所述控制设备为广播助理。
  12. 根据权利要求1至10中任一项所述的方法，其中，所述控制设备包括广播源和广播助理。
  13. 根据权利要求11或12所述的方法，其中，所述广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
    第一声道对应的BIS；
    第二声道对应的BIS；
    单声道对应的BIS。
  14. 根据权利要求10、12或13所述的方法，其中，所述广播源为广播音频源，所述广播接收器为广播音频接收器。
  15. 一种音频控制方法，包括：
    第一广播接收器向控制设备发送通知信息；
    所述通知信息用于指示所述控制设备控制第二广播接收器同步的广播同步流BIS。
  16. 根据权利要求15所述的方法，其中，所述第二广播接收器与所述第一广播接收器处于同一协调集合。
  17. 根据权利要求15或16所述的方法，其中，所述方法还包括：
    所述第一广播接收器停止同步到周期广播，所述通知信息用于通知所述控制设备所述第一广播接收器停止同步到周期广播。
  18. 根据权利要求15或16所述的方法，其中，所述通知信息用于请求所述控制设备发送广播同步信息，所述方法还包括：
    所述第一广播接收器接收来自所述控制设备的广播同步信息，并开始同步第一声道对应的BIS。
  19. 根据权利要求15至18中任一项所述的方法，其中，所述第一广播接收器和所述第二广播接收器为耳机设备。
  20. 根据权利要求19所述的方法，其中，所述第一声道为左声道，第二声道为右声道，所述第一广播接收器为左耳机设备，所述第二广播接收器为右耳机设备。
  21. 根据权利要求19所述的方法，其中，所述第一声道为右声道，第二声道为左声道，所述第一广播接收器为右耳机设备，所述第二广播接收器为左耳机设备。
  22. 根据权利要求15至21中任一项所述的方法，其中，所述控制设备为广播助理。
  23. 根据权利要求15至22中任一项所述的方法，其中，所述控制设备包括广播源和广播助理。
  24. 根据权利要求22或23所述的方法，其中，所述广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
    第一声道对应的BIS；
    第二声道对应的BIS；
    单声道对应的BIS。
  25. 根据权利要求23或24所述的方法，其中，所述广播源为广播音频源，所述广播接收器为广播音频接收器。
  26. 一种音频控制方法，包括：
    第二广播接收器接收来自控制设备的指示信息，所述指示信息是所述控制设备基于第一广播接收器的通知信息确定的；
    所述第二广播接收器基于所述指示信息同步广播同步流BIS。
  27. 根据权利要求26所述的方法，其中，所述通知信息用于通知所述控制设备所述第一广播接收器停止同步到周期广播，所述第二广播接收器基于所述指示信息同步BIS，包括：
    所述第二广播接收器停止同步第二声道对应的BIS，并开始同步单声道对应的BIS。
  28. 根据权利要求26所述的方法，其中，所述通知信息用于请求所述控制设备发送广播同步信息，所述第二广播接收器基于所述指示信息同步BIS，包括：
    所述第二广播接收器停止同步单声道对应的BIS，并开始同步第二声道对应的BIS。
  29. 根据权利要求26至28中任一项所述的方法，其中，所述第一广播接收器和所述第二广播接收器为耳机设备。
  30. 根据权利要求29所述的方法，其中，所述第一声道为左声道，第二声道为右声道，所述第一广播接收器为左耳机设备，所述第二广播接收器为右耳机设备。
  31. 根据权利要求29所述的方法，其中，所述第一声道为右声道，第二声道为左声道，所述第一广播接收器为右耳机设备，所述第二广播接收器为左耳机设备。
  32. 根据权利要求26至31中任一项所述的方法，其中，所述控制设备为广播助理。
  33. 根据权利要求26至31中任一项所述的方法，其中，所述控制设备包括广播源和广播助理。
  34. 根据权利要求32或33所述的方法，其中，所述广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
    第一声道对应的BIS；
    第二声道对应的BIS；
    单声道对应的BIS。
  35. 根据权利要求33或34所述的方法，其中，所述广播源为广播音频源，所述广播接收器为广播音频接收器。
  36. 一种控制设备，包括：
    接收单元，用于接收来自第一广播接收器的通知信息；
    控制单元，用于基于所述通知信息控制第二广播接收器同步的广播同步流BIS。
  37. 根据权利要求36所述的控制设备，其中，所述控制设备还包括：
    查找单元，用于查找与所述第一广播接收器处于同一协调集合的第二广播接收器。
  38. 根据权利要求36所述的控制设备，其中，所述通知信息用于通知所述控制设备所述第一广播接收器停止同步到周期广播，所述控制单元还用于指示所述第二广播接收器停止同步第二声道对应的BIS，并开始同步单声道对应的BIS。
  39. 根据权利要求36所述的控制设备，其中，所述通知信息用于请求所述控制设备发送广播同步信息，所述控制单元还用于向所述第一广播接收器发送广播同步信息，以指示所述第一广播接收器开始同步第一声道对应的BIS。
  40. 根据权利要求39所述的控制设备，其中，所述控制单元还用于指示所述第二广播接收器停止同步单声道对应的BIS，并开始同步第二声道对应的BIS。
  41. 根据权利要求39或40所述的控制设备，其中，所述通知信息中包括源地址类型、源地址和广告集标识的至少之一。
  42. 根据权利要求36至41中任一项所述的控制设备，其中，所述第一广播接收器和所述第二广播接收器为耳机设备。
  43. 根据权利要求42所述的控制设备，其中，所述第一声道为左声道，第二声道为右声道，所述第一广播接收器为左耳机设备，所述第二广播接收器为右耳机设备。
  44. 根据权利要求42所述的控制设备，其中，所述第一声道为右声道，第二声道为左声道，所述第一广播接收器为右耳机设备，所述第二广播接收器为左耳机设备。
  45. 根据权利要求36至44中任一项所述的控制设备，其中，所述控制单元还用于建立广播源与第一广播接收器以及第二广播接收器之间的同步关系，以指示所述第一广播接收器同步到第一声道对应的BIS，第二广播接收器同步到第二声道对应的BIS。
  46. 根据权利要求36至45中任一项所述的控制设备，其中，所述控制设备为广播助理。
  47. 根据权利要求36至45中任一项所述的控制设备，其中，所述控制设备包括广播源和广播助理。
  48. 根据权利要求46或47所述的控制设备，其中，所述广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
    第一声道对应的BIS；
    第二声道对应的BIS；
    单声道对应的BIS。
  49. 根据权利要求45、47或48所述的控制设备，其中，所述广播源为广播音频源，所述广播接收器为广播音频接收器。
  50. 一种第一广播接收器，包括：
    发送单元，用于向控制设备发送通知信息；
    所述通知信息用于指示所述控制设备控制第二广播接收器同步的广播同步流BIS。
  51. 根据权利要求50所述的第一广播接收器，其中，所述第二广播接收器与所述第一广播接收器处于同一协调集合。
  52. 根据权利要求50或51所述的第一广播接收器，其中，所述第一广播接收器还包括：
    控制单元，用于停止同步到周期广播，所述通知信息用于通知所述控制设备所述第一广播接收器停止同步到周期广播。
  53. 根据权利要求50或51所述的第一广播接收器，其中，所述通知信息用于请求所述控制设备发送广播同步信息，所述第一广播接收器还包括：
    接收单元，用于接收来自所述控制设备的广播同步信息，并开始同步第一声道对应的BIS。
  54. 根据权利要求50至53中任一项所述的第一广播接收器，其中，所述第一广播接收器和所述第二广播接收器为耳机设备。
  55. 根据权利要求54所述的第一广播接收器，其中，所述第一声道为左声道，第二声道为右声道，所述第一广播接收器为左耳机设备，所述第二广播接收器为右耳机设备。
  56. 根据权利要求54所述的第一广播接收器，其中，所述第一声道为右声道，第二声道为左声道，所述第一广播接收器为右耳机设备，所述第二广播接收器为左耳机设备。
  57. 根据权利要求50至56中任一项所述的第一广播接收器，其中，所述控制设备为广播助理。
  58. 根据权利要求50至57中任一项所述的第一广播接收器，其中，所述控制设备包括广播源和广播助理。
  59. 根据权利要求57或58所述的第一广播接收器，其中，所述广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
    第一声道对应的BIS；
    第二声道对应的BIS；
    单声道对应的BIS。
  60. 根据权利要求58或59所述的第一广播接收器，其中，所述广播源为广播音频源，所述广播接收器为广播音频接收器。
  61. 一种第二广播接收器，包括：
    接收单元，用于接收来自控制设备的指示信息，所述指示信息是所述控制设备基于第一广播接收器的通知信息确定的；
    控制单元，用于基于所述指示信息同步广播同步流BIS。
  62. 根据权利要求61所述的第二广播接收器，其中，所述通知信息用于通知所述控制设备所述第一广播接收器停止同步到周期广播，所述控制单元还用于停止同步第二声道对应的BIS，并开始同步单声道对应的BIS。
  63. 根据权利要求61所述的第二广播接收器，其中，所述通知信息用于请求所述控制设备发送广播同步信息，所述控制单元还用于停止同步单声道对应的BIS，并开始同步第二声道对应的BIS。
  64. 根据权利要求61至63中任一项所述的第二广播接收器，其中，所述第一广播接收器和所述第二广播接收器为耳机设备。
  65. 根据权利要求64所述的第二广播接收器，其中，所述第一声道为左声道，第二声道为右声道，所述第一广播接收器为左耳机设备，所述第二广播接收器为右耳机设备。
  66. 根据权利要求64所述的第二广播接收器，其中，所述第一声道为右声道，第二声道为左声道，所述第一广播接收器为右耳机设备，所述第二广播接收器为左耳机设备。
  67. 根据权利要求61至66中任一项所述的第二广播接收器，其中，所述控制设备为广播助理。
  68. 根据权利要求62至66中任一项所述的第二广播接收器，其中，所述控制设备包括广播源和广播助理。
  69. 根据权利要求67或68所述的第二广播接收器，其中，所述广播助理从广播源接收的周期广播中包括以下BIS的至少之一：
    第一声道对应的BIS；
    第二声道对应的BIS；
    单声道对应的BIS。
  70. 根据权利要求68或69所述的第二广播接收器，其中，所述广播源为广播音频源，所述广播接收器为广播音频接收器。
  71. 一种控制设备，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，以使所述控制设备执行如权利要求1至14中任一项所述的方法。
  72. 一种音频接收设备，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，以使所述音频接收设备执行如权利要求15至35中任一项所述的方法。
  73. 一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至14中任一项所述的方法。
  74. 一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求15至35中任一项所述的方法。
  75. 一种计算机可读存储介质，用于存储计算机程序，当所述计算机程序被设备运行时使得所述设备执行如权利要求1至14中任一项所述的方法。
  76. 一种计算机可读存储介质，用于存储计算机程序，当所述计算机程序被设备运行时使得所述设备执行如权利要求15至35中任一项所述的方法。
  77. 一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至14中任一项所述的方法。
  78. 一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求15至35中任一项所述的方法。
  79. 一种计算机程序，所述计算机程序使得计算机执行如权利要求1至14中任一项所述的方法。
  80. 一种计算机程序，所述计算机程序使得计算机执行如权利要求15至35中任一项所述的方法。
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