WO2021185122A1 - 音频传输方法及电子设备 - Google Patents

音频传输方法及电子设备 Download PDF

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Publication number
WO2021185122A1
WO2021185122A1 PCT/CN2021/079725 CN2021079725W WO2021185122A1 WO 2021185122 A1 WO2021185122 A1 WO 2021185122A1 CN 2021079725 W CN2021079725 W CN 2021079725W WO 2021185122 A1 WO2021185122 A1 WO 2021185122A1
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Prior art keywords
audio signal
channel
channel audio
bandwidth
playback device
Prior art date
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PCT/CN2021/079725
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English (en)
French (fr)
Inventor
赵登
Original Assignee
维沃移动通信有限公司
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Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP21772636.3A priority Critical patent/EP4123642B1/en
Priority to JP2022553688A priority patent/JP7419561B2/ja
Priority to KR1020227034902A priority patent/KR20220151673A/ko
Publication of WO2021185122A1 publication Critical patent/WO2021185122A1/zh
Priority to US17/897,322 priority patent/US20220417689A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/033Headphones for stereophonic communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S3/00Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72442User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07Applications of wireless loudspeakers or wireless microphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S2400/00Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved

Definitions

  • the present invention relates to the field of communication technology, in particular to an audio transmission method and electronic equipment.
  • the embodiments of the present invention provide an audio transmission method and an electronic device to solve the problem that the sound quality of an audio file may be damaged due to the limitation of the transmission bandwidth in the existing audio transmission method.
  • the present invention is implemented as follows:
  • an embodiment of the present invention provides an audio transmission method, which is applied to a first electronic device, and the first electronic device is wirelessly connected to a second electronic device, and the second electronic device includes a first sound channel playback device And a second sound channel playback device;
  • the audio transmission method includes:
  • the first channel audio signal is transmitted to the first channel playback device through an ultra-wideband transmission protocol
  • the second channel audio signal is transmitted to the second channel through the ultra-wideband transmission protocol for playback Device.
  • an embodiment of the present invention also provides an electronic device, the electronic device is a first electronic device, the electronic device is wirelessly connected to a second electronic device, and the second electronic device includes a first audio channel playback A device and a second sound channel playing device; the electronic equipment includes:
  • An acquiring module configured to acquire target audio and decode the target audio into a first channel audio signal and a second channel audio signal
  • the transmission module is configured to transmit the first channel audio signal to the first channel playback device through an ultra-wideband transmission protocol, and transmit the second channel audio signal to the first channel through the ultra-wideband transmission protocol The second channel playback device.
  • an embodiment of the present invention also provides an electronic device, including a processor, a memory, and a computer program stored on the memory and running on the processor, and the computer program is executed by the processor. When executed, the steps of the audio transmission method as described in the first aspect are realized.
  • an embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the audio transmission method as described in the first aspect are implemented.
  • embodiments of the present invention also provide a computer program product, which is stored in a computer-readable storage medium, and the computer program product is executed by at least one processor to implement the audio transmission method as described in the first aspect A step of.
  • an embodiment of the present invention also provides an electronic device for executing the steps of the audio transmission method as described in the first aspect.
  • the first electronic device obtains target audio, decodes the target audio into a first channel audio signal and a second channel audio signal, and passes the first channel audio signal through an ultra-wideband transmission protocol Transmitting to the first channel playback device, and transmitting the second channel audio signal to the second channel playback device through the ultra-wideband transmission protocol.
  • the first electronic device can transmit the left and right channel audio signals separately by calling the 27Mbps transmission bandwidth of the ultra-wideband transmission protocol, which increases the transmission bandwidth of the left and right channel audio signals, so that the first electronic device can transmit higher quality , Higher bandwidth audio to avoid damage to audio quality.
  • Figure 1 is a flowchart of an audio transmission method provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a scenario in which an electronic device applies the audio transmission method provided in FIG. 1;
  • Figure 3 is a structural diagram of an electronic device provided by an embodiment of the present invention.
  • Fig. 4 is a structural diagram of another electronic device provided by an embodiment of the present invention.
  • the embodiment of the present invention provides an audio transmission method, which is applied to a first electronic device, such as a mobile phone, a tablet computer, a computer, a wearable device, and the like.
  • the first electronic device is wirelessly connected to the second electronic device, such as a Bluetooth connection;
  • the second electronic device includes a first channel playback device and a second channel playback device, for example, the second electronic device is a headset , The first channel playback device is a left earphone, and the second channel playback device is a right earphone; or, the second electronic device is a speaker, and the first channel playback device is a left channel speaker, The second channel playback device is a right channel audio.
  • FIG. 1 is a flowchart of an audio transmission method according to an embodiment of the present invention. As shown in FIG. 1, the audio transmission method includes the following steps:
  • Step 101 Obtain target audio, and decode the target audio into a first channel audio signal and a second channel audio signal.
  • the target audio may be audio to be played or being played in the first electronic device.
  • the first electronic device receives the user's touch operation on the music play button, it acquires the target audio; or, when the first electronic device receives the user's touch operation on the video play button, it acquires To the target audio.
  • the first electronic device decodes the target audio into a first channel audio signal and a second channel audio signal.
  • Step 102 Transmit the first channel audio signal to the first channel playback device through the ultra-wideband transmission protocol, and transmit the second channel audio signal to the second channel through the ultra-wideband transmission protocol.
  • Channel playback device Transmit the first channel audio signal to the first channel playback device through the ultra-wideband transmission protocol, and transmit the second channel audio signal to the second channel through the ultra-wideband transmission protocol.
  • earphones will be used as the second electronic device
  • the left earphone of the earphone is the first channel playback device
  • the right earphone of the earphone is The second channel playback device is taken as an example for specific description.
  • the first electronic device when the first electronic device establishes a wireless connection with the headset, the first electronic device decodes the target audio into a left channel audio signal and a right channel audio signal, and combines the left channel audio
  • the signal is transmitted to the left earphone through an Ultra Wide Band (UWB) transmission protocol, and the right channel audio signal is also transmitted to the right earphone through the UWB transmission protocol.
  • UWB Ultra Wide Band
  • the electronic device is usually equipped with a Bluetooth chip, which can transmit audio signals to the headset based on the Bluetooth transmission protocol.
  • the Bluetooth transmission bandwidth is only 3Mbps, coupled with the overhead of the transmission protocol, the actual transmission rate of audio is lower, which limits the transmission of audio files of electronic devices.
  • the transmission speed supported by the UWB transmission protocol has reached 27 Mbps.
  • the first electronic device can transmit the left channel audio signal to the left earphone and the right channel audio signal to the right based on the UWB transmission protocol.
  • the earphone enables the first electronic device to transmit audio with higher quality and higher resolution requirements, avoids sound quality damage caused by a lower transmission rate, and ensures audio transmission quality and playback effects.
  • the step 102 may include:
  • the media access control MAC and the physical layer PHY in the ultra-bandwidth transmission protocol are called through the switchable media access controller AMP and the protocol adaptation layer PAL in the Bluetooth transmission protocol to transmit the first channel audio signal to the The first channel playback device transmits the second channel audio signal to the second channel playback device.
  • AMP Medium Access Control/Physical layer
  • AMP is the secondary controller of the Bluetooth transmission system.
  • the basic rate and the enhanced rate (Basic The main controller of Rate/Enhanced Data Rate (BR/EDR) is used for search, pairing, connection establishment, and connection maintenance; when two BR/EDR Bluetooth devices logical link control and adaptation protocol (Logical Link Control and Adaptation Protocol, L2CAP) )
  • BR/EDR Rate/Enhanced Data Rate
  • L2CAP Logical Link Control and Adaptation Protocol
  • the Bluetooth transmission system provides a mechanism for data flow to migrate from the primary controller to the secondary controller.
  • Each AMP controller has a Protocol Adaptation Layer (PAL).
  • PAL Protocol Adaptation Layer
  • PAL is in the Medium Access Control (MAC) and Physical Layer (PHY)
  • the functional responsibility of PAL is to map the Bluetooth protocol in the main controller to the AMP controller.
  • the first electronic device and the earphone are connected by Bluetooth.
  • the first electronic device can use AMP and PAL as the secondary transmission link control interface without changing the Bluetooth transmission protocol to call the MAC and PHY in the 802.15.4a ultra-wideband transmission protocol for audio signal transmission, and then use The left channel audio signal is transmitted to the left earphone, and the right channel audio signal is transmitted to the right earphone.
  • the first electronic device can call the ultra-wideband transmission protocol with a transmission bandwidth of 27 Mbps to transmit the left and right channel audio signals on the basis of the already set Bluetooth chip and the existing Bluetooth transmission protocol, which increases the frequency of the audio signal.
  • the transmission rate enables the first electronic device to transmit higher-quality and higher-bandwidth audio, avoiding audio quality damage, while retaining the convenience of Bluetooth networking and pairing between the first electronic device and the headset, and the use of Bluetooth headsets Compatible.
  • the first electronic device may be provided with two first Bluetooth chips and a second Bluetooth chip, the first Bluetooth chip is used to encode the left channel audio signal, and the encoded left sound The channel audio signal is transmitted to the left earphone based on the ultra-wideband transmission protocol, and the second Bluetooth chip is used for encoding the right channel audio signal, and transmits the encoded right channel audio signal to the right earphone based on the ultra-wideband transmission protocol.
  • the first electronic device can process and transmit the left channel audio signal and the right channel audio signal respectively through the two Bluetooth chips, which further increases the audio transmission channel and transmission bandwidth.
  • the first electronic device may also be provided with only one Bluetooth chip. After the Bluetooth chip encodes the left channel audio signal and the right channel audio signal, it transmits the left channel audio signal to the The left earphone transmits the audio signal of the right channel to the right earphone.
  • the step 102 may further include:
  • the first channel audio signal is transmitted to the first audio signal through the ultra-wideband transmission protocol.
  • Channel playback device which transmits the second channel audio signal to the second channel playback device through the ultra-wideband transmission protocol.
  • the first electronic device uses AMP and PAL to call the MAC and PHY in the ultra-wideband transmission protocol to transmit audio signals on the basis of the existing Bluetooth chip and Bluetooth transmission protocol.
  • the first electronic device still retains With the Bluetooth chip, the audio signal can still be transmitted through the Bluetooth transmission protocol.
  • the bandwidth of the Bluetooth transmission protocol is 3Mbps
  • the transmission bandwidth of the ultra-wideband transmission protocol is 27Mbps.
  • the first electronic device may perform processing on the transmission bandwidth required to transmit the left-channel audio signal and the right-channel audio signal. It is determined that when the required transmission bandwidth is greater than the preset bandwidth, the left channel audio signal and the right channel audio signal are correspondingly transmitted to the left earphone and the right earphone through the ultra-wideband transmission protocol.
  • the preset bandwidth is 3Mbps.
  • the transmission bandwidth required to transmit the left channel audio signal is greater than 3Mbps, and the transmission bandwidth required to transmit the right channel audio signal is also greater than 3Mbps, it is no longer applicable to Bluetooth Transmission protocol for audio signal transmission, you can choose to transmit the left and right channel audio signals through the ultra-wideband transmission protocol to ensure that the first electronic device can realize the transmission of high-quality audio, without the need for high-quality audio through advanced audio coding (Advanced Audio Coding).
  • Audio Coding (AAC) performs compression-transmission-decompression operations to avoid damage to sound quality.
  • step 101 it may further include:
  • the first channel audio signal is transmitted to the second channel through the Bluetooth transmission protocol A one-channel playback device that transmits the second-channel audio signal to the second-channel playback device through the Bluetooth transmission protocol.
  • the preset bandwidth can be set to 3 Mbps; when the transmission bandwidth required to transmit the left channel audio signal is less than or equal to 3 Mbps, the right is transmitted If the required transmission bandwidth of the channel audio signal is less than or equal to 3 Mbps, the left channel audio signal is transmitted to the left earphone and the right channel audio signal is transmitted to the right earphone through the Bluetooth transmission protocol.
  • the transmission bandwidth required to transmit the left channel audio signal is greater than 3 Mbps, and the transmission bandwidth required to transmit the right channel audio signal is greater than 3 Mbps, the left channel audio signal is transmitted to the left through the ultra-wideband transmission protocol.
  • the earphone transmits the audio signal of the right channel to the right earphone.
  • the first electronic device can select different transmission methods to transmit the audio signal according to the transmission bandwidth required for the transmission of the audio signal, which expands the transmission method of the first electronic device for the audio signal, and increases the frequency of the audio signal.
  • the transmission rate enables the first electronic device to transmit higher quality and higher bandwidth audio.
  • the Bluetooth chip obtains the target audio (first music or second music) through the audio Audio application layer, and decodes the target audio into a left channel audio signal (L) and a right channel audio signal (R);
  • the Bluetooth audio transmission model protocol Advanced Audio Distribution Profile, A2DP
  • the audio/video transmission protocol between Bluetooth devices are used (Audio/Video Distribution Transport Protocol, AVDTP) encodes the left channel audio signal and the right channel audio signal and transmits them to the left earphone and right earphone of the earphone through the baseband unit and the radio frequency unit, respectively.
  • A2DP Advanced Audio Distribution Profile
  • AVDTP Audio/Video Distribution Transport Protocol
  • Bluetooth transmission protocol also includes other protocols and control layers followed, such as Session Description Protocol (SDP), AMP, Logical Link Control and Adaptation Layer Protocol, L2CAP), Human Computer Interaction (HCI) control plane, Link Manager Protocol (LMP), Bit Torrent (BT) baseband control layer, Physical layer (Physical, PHY), etc.
  • SDP Session Description Protocol
  • AMP Logical Link Control and Adaptation Layer Protocol
  • L2CAP Logical Link Control and Adaptation Layer Protocol
  • HCI Human Computer Interaction
  • LMP Link Manager Protocol
  • BT Bit Torrent
  • Physical layer Physical layer (Physical, PHY), etc.
  • the MAC and PHY in the ultra-wideband UWB transmission protocol are called through the AMP and PAL of the Bluetooth transmission protocol, and the left sound
  • the channel audio signal and the right channel audio signal are respectively transmitted to the left earphone and the right earphone.
  • the audio transmission channel of the first electronic device is expanded, thereby improving the transmission quality of the audio file, avoiding damage to the sound quality of the audio file, and ensuring the sound quality effect of the audio file.
  • the step 102 may further include:
  • the first channel audio signal of the first bandwidth is transmitted to the first channel through the ultra-wideband protocol.
  • a channel playback device which transmits a first channel audio signal of a second bandwidth to the first channel playback device through a Bluetooth transmission protocol;
  • the second channel audio signal of the third bandwidth is transmitted to the second channel playback device through the ultra-wideband protocol, and the second channel audio signal of the fourth bandwidth is transmitted to the first channel through the Bluetooth transmission protocol for playback Device
  • the sum of the first bandwidth and the second bandwidth is the bandwidth required for transmitting the first channel audio signal; the sum of the third bandwidth and the fourth bandwidth is the bandwidth required for transmitting the second channel audio signal. The required bandwidth.
  • the transmission bandwidth required to transmit the left channel audio signal is greater than 3Mbps
  • a part of the bandwidth of the left channel audio signal is transmitted to the left earphone through the ultra-wideband transmission protocol, and the remaining part of the bandwidth of the left channel audio signal is passed through
  • the Bluetooth transmission protocol is transmitted to the left earphone.
  • the transmission bandwidth required to transmit the left channel audio signal is 30 Mbps
  • the 27 Mbps left channel audio signal can be transmitted to the left earphone through the ultra-wideband transmission protocol
  • the remaining 3 Mbps left channel audio signal can be transmitted through Bluetooth
  • the transfer protocol is transferred to the left earphone.
  • the left channel audio signal can be transmitted through the ultra-wideband transmission protocol and the Bluetooth transmission protocol, which further expands the transmission bandwidth and transmission path of the left channel audio signal, so that the first electronic device can transmit high-quality audio , To bring users a better listening experience.
  • the transmission bandwidth required to transmit the right channel audio signal is greater than 3Mbps
  • a part of the bandwidth of the right channel audio signal is transmitted to the right earphone through the ultra-wideband transmission protocol, and the remaining part of the bandwidth of the right channel audio signal is passed through
  • the Bluetooth transmission protocol is transmitted to the right earphone, which further expands the transmission bandwidth and transmission path of the right channel audio signal, ensuring that the first electronic device can transmit high-quality audio.
  • the first electronic device obtains target audio, decodes the target audio into a first channel audio signal and a second channel audio signal, and passes the first channel audio signal through an ultra-wideband transmission protocol Transmitting to the first channel playback device, and transmitting the second channel audio signal to the second channel playback device through the ultra-wideband transmission protocol.
  • the first electronic device can transmit the left and right channel audio signals separately by calling the 27Mbps transmission bandwidth of the ultra-wideband transmission protocol, which increases the transmission bandwidth of the left and right channel audio signals, so that the first electronic device can transmit higher quality , Higher bandwidth audio to avoid damage to audio quality.
  • FIG. 3 is a structural diagram of an electronic device provided by an embodiment of the present invention.
  • the electronic device is a first electronic device, and the electronic device is wirelessly connected to a second electronic device. It includes a first channel playback device and a second channel playback device.
  • the electronic device 300 includes:
  • the obtaining module 301 is configured to obtain target audio and decode the target audio into a first channel audio signal and a second channel audio signal;
  • the transmission module 302 is configured to transmit the first channel audio signal to the first channel playback device through an ultra-wideband transmission protocol, and transmit the second channel audio signal to the first channel through the ultra-wideband transmission protocol.
  • the second channel playback device is configured to transmit the first channel audio signal to the first channel playback device through an ultra-wideband transmission protocol, and transmit the second channel audio signal to the first channel through the ultra-wideband transmission protocol.
  • the second channel playback device is configured to transmit the first channel audio signal to the first channel playback device through an ultra-wideband transmission protocol, and transmit the second channel audio signal to the first channel through the ultra-wideband transmission protocol.
  • the transmission module 302 is further configured to:
  • the media access control MAC and the physical layer PHY in the ultra-bandwidth transmission protocol are called through the switchable media access controller AMP and the protocol adaptation layer PAL in the Bluetooth transmission protocol to transmit the first channel audio signal to the The first channel playback device transmits the second channel audio signal to the second channel playback device.
  • the transmission module 302 is further configured to:
  • the first channel audio signal is transmitted to the first audio signal through the ultra-wideband transmission protocol.
  • Channel playback device which transmits the second channel audio signal to the second channel playback device through the ultra-wideband transmission protocol.
  • the transmission module 302 is further configured to:
  • the first channel audio signal of the first bandwidth is transmitted to the first channel through the ultra-wideband protocol.
  • a channel playback device which transmits a first channel audio signal of a second bandwidth to the first channel playback device through a Bluetooth transmission protocol;
  • the second channel audio signal of the third bandwidth is transmitted to the second channel playback device through the ultra-wideband protocol, and the second channel audio signal of the fourth bandwidth is transmitted to the first channel through the Bluetooth transmission protocol for playback Device
  • the sum of the first bandwidth and the second bandwidth is the bandwidth required for transmitting the first channel audio signal; the sum of the third bandwidth and the fourth bandwidth is the bandwidth required for transmitting the second channel audio signal. The required bandwidth.
  • the transmission module 302 is further configured to:
  • the first channel audio signal is transmitted to the second channel through the Bluetooth transmission protocol A one-channel playback device that transmits the second-channel audio signal to the second-channel playback device through the Bluetooth transmission protocol.
  • the electronic device 300 can implement the various processes of the embodiment of the audio transmission method described in FIG.
  • the electronic device 300 obtains target audio, decodes the target audio into a first channel audio signal and a second channel audio signal, and transmits the first channel audio signal through an ultra-wideband transmission protocol To the first channel playback device, the second channel audio signal is transmitted to the second channel playback device through the ultra-wideband transmission protocol.
  • the electronic device 300 can transmit the left and right channel audio signals separately by calling the 27Mbps transmission bandwidth of the ultra-wideband transmission protocol, which increases the transmission bandwidth of the left and right channel audio signals, so that the electronic device 300 can transmit higher quality and better quality. High-bandwidth audio to avoid damage to audio quality.
  • FIG. 4 is a structural diagram of another electronic device that implements an embodiment of the present invention.
  • the electronic device 400 can implement each process of the audio transmission method embodiment described in FIG. 1 and achieve the same technical effect.
  • the electronic device 400 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, a memory 409, The processor 410, and the power supply 411 and other components.
  • a radio frequency unit 401 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, a memory 409, The processor 410, and the power supply 411 and other components.
  • Those skilled in the art can understand that the structure of the electronic device shown in FIG. 4 does not constitute a limitation on the electronic device 400
  • the electronic device 400 may include more or less components than those shown in the figure, or combine certain components, or different components.
  • the electronic device 400 includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
  • the processor 410 is used for:
  • the radio frequency unit 401 is configured to transmit the first channel audio signal to the first channel playback device through an ultra-wideband transmission protocol, and transmit the second channel audio signal to the first channel through the ultra-wideband transmission protocol.
  • the second channel playback device is configured to transmit the first channel audio signal to the first channel playback device through an ultra-wideband transmission protocol, and transmit the second channel audio signal to the first channel through the ultra-wideband transmission protocol.
  • the radio frequency unit 401 is also used for:
  • the media access control MAC and the physical layer PHY in the ultra-bandwidth transmission protocol are called through the switchable media access controller AMP and the protocol adaptation layer PAL in the Bluetooth transmission protocol to transmit the first channel audio signal to the The first channel playback device transmits the second channel audio signal to the second channel playback device.
  • the radio frequency unit 401 is also used for:
  • the first channel audio signal is transmitted to the first audio signal through the ultra-wideband transmission protocol.
  • Channel playback device which transmits the second channel audio signal to the second channel playback device through the ultra-wideband transmission protocol.
  • the radio frequency unit 401 is also used for:
  • the first channel audio signal of the first bandwidth is transmitted to the first channel through the ultra-wideband protocol.
  • a channel playback device which transmits a first channel audio signal of a second bandwidth to the first channel playback device through a Bluetooth transmission protocol;
  • the second channel audio signal of the third bandwidth is transmitted to the second channel playback device through the ultra-wideband protocol, and the second channel audio signal of the fourth bandwidth is transmitted to the first channel through the Bluetooth transmission protocol for playback Device
  • the sum of the first bandwidth and the second bandwidth is the bandwidth required for transmitting the first channel audio signal; the sum of the third bandwidth and the fourth bandwidth is the bandwidth required for transmitting the second channel audio signal. The required bandwidth.
  • the radio frequency unit 401 is also used for:
  • the first channel audio signal is transmitted to the second channel through the Bluetooth transmission protocol A one-channel playback device that transmits the second-channel audio signal to the second-channel playback device through the Bluetooth transmission protocol.
  • the electronic device 400 obtains target audio, decodes the target audio into a first channel audio signal and a second channel audio signal, and transmits the first channel audio signal through an ultra-wideband transmission protocol To the first channel playback device, the second channel audio signal is transmitted to the second channel playback device through the ultra-wideband transmission protocol.
  • the electronic device 400 can transmit the left and right channel audio signals separately by calling the 27Mbps transmission bandwidth of the ultra-wideband transmission protocol, which increases the transmission bandwidth of the left and right channel audio signals, so that the electronic device 400 can transmit higher quality and better quality. High-bandwidth audio to avoid damage to audio quality.
  • the radio frequency unit 401 can be used to receive and send signals during information transmission or communication. Specifically, the downlink data from the base station is received and processed by the processor 410; in addition, Uplink data is sent to the base station.
  • the radio frequency unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 401 can also communicate with the network and other devices through a wireless communication system.
  • the electronic device 400 provides users with wireless broadband Internet access through the network module 402, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 403 may convert the audio data received by the radio frequency unit 401 or the network module 402 or stored in the memory 409 into an audio signal and output it as sound. Moreover, the audio output unit 403 may also provide audio output related to a specific function performed by the electronic device 400 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 403 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 404 is used to receive audio or video signals.
  • the input unit 404 may include a graphics processing unit (GPU) 4041 and a microphone 4042.
  • the graphics processor 4041 is configured to monitor the still image or video image obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. Data is processed.
  • the processed image frame can be displayed on the display unit 406.
  • the image frame processed by the graphics processor 4041 may be stored in the memory 409 (or other computer-readable storage medium) or sent via the radio frequency unit 401 or the network module 402.
  • the microphone 4042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 401 in the case of a telephone call mode for output.
  • the electronic device 400 also includes at least one sensor 405, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 4041 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 4041 and the display panel 4041 when the electronic device 400 is moved to the ear. / Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of electronic devices (such as horizontal and vertical screen switching, related games) , Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 405 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, Infrared sensors, etc., will not be repeated here.
  • the display unit 406 is used to display information input by the user or information provided to the user.
  • the display unit 406 may include a display panel 4041, and the display panel 4041 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 407 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the electronic device 400.
  • the user input unit 407 includes a touch panel 4071 and other input devices 4072.
  • the touch panel 4071 also called a touch screen, can collect the user's touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 4071 or near the touch panel 4071. operate).
  • the touch panel 4071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 410, the command sent by the processor 410 is received and executed.
  • the touch panel 4071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 407 may also include other input devices 4072.
  • other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 4071 can cover the display panel 4041.
  • the touch panel 4071 detects a touch operation on or near it, it transmits it to the processor 410 to determine the type of the touch event.
  • the type of event provides corresponding visual output on the display panel 4041.
  • the touch panel 4071 and the display panel 4041 are used as two independent components to implement the input and output functions of the electronic device 400, in some embodiments, the touch panel 4071 and the display panel 4041 can be combined.
  • the input and output functions of the electronic device 400 are realized by integration, which is not specifically limited here.
  • the interface unit 408 is an interface for connecting an external device and the electronic device 400.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 408 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the electronic device 400 or can be used to connect the electronic device 400 to an external device. Transfer data between devices.
  • the memory 409 can be used to store software programs and various data.
  • the memory 409 may mainly include a storage program area and a storage data area.
  • the storage program area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc.
  • the memory 409 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 410 is the control center of the electronic device 400, which uses various interfaces and lines to connect the various parts of the entire electronic device 400, runs or executes the software programs and/or modules stored in the memory 409, and calls the storage in the memory 409 , Execute various functions of the electronic device 400 and process data, so as to monitor the electronic device 400 as a whole.
  • the processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, application programs, etc., and the modem
  • the processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 410.
  • the electronic device 400 may also include a power source 411 (such as a battery) for supplying power to various components.
  • a power source 411 such as a battery
  • the power source 411 may be logically connected to the processor 410 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.
  • the electronic device 400 includes some functional modules not shown, which will not be repeated here.
  • an embodiment of the present invention also provides an electronic device, including a processor, a memory, and a computer program stored in the memory and running on the processor.
  • the computer program When the computer program is executed by the processor, the computer program shown in FIG. 1 is implemented.
  • Each process of the embodiment of the audio transmission method is described, and the same technical effect can be achieved. In order to avoid repetition, it will not be repeated here.
  • the embodiment of the present invention also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk, or optical disk, etc.
  • the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present invention.
  • a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

提供了一种音频传输方法及电子设备,其中,音频传输方法应用于第一电子设备,第一电子设备与第二电子设备无线连接,第二电子设备包括第一声道播放装置和第二声道播放装置;音频传输方法包括:获取目标音频,并将目标音频解码为第一声道音频信号和第二声道音频信号;将第一声道音频信号通过超宽带传输协议传输至第一声道播放装置,将第二声道音频信号通过超宽带传输协议传输至第二声道播放装置。

Description

音频传输方法及电子设备
相关申请的交叉引用
本申请主张在2020年03月16日在中国提交的中国专利申请号No.202010181286.3的优先权,其全部内容通过引用包含于此。
技术领域
本发明涉及通信技术领域,尤其涉及一种音频传输方法及电子设备。
背景技术
随着无线通讯技术日新月异的发展和市场的逐渐扩大,音频的无线传输技术在无线通讯中的应用也越来越广泛。目前,电子设备在通过蓝牙进行音频传输时,由于传输带宽的限制,对于数据量较大的音频文件,已经无法通过蓝牙传输,通常只能通过高级音频编码(Advanced Audio Coding,AAC)等压缩-传输-解压缩的方式进行,但在压缩-传输-解压缩的过程中,会导致音频文件的音质受损,影响音频文件的播放效果。
发明内容
本发明实施例提供一种音频传输方法及电子设备,以解决现有的音频传输方式因传输带宽的限制,会导致音频文件的音质受损的问题。
为了解决上述技术问题,本发明是这样实现的:
第一方面,本发明实施例提供了一种音频传输方法,应用于第一电子设备,所述第一电子设备与第二电子设备无线连接,所述第二电子设备包括第一声道播放装置和第二声道播放装置;所述音频传输方法包括:
获取目标音频,并将所述目标音频解码为第一声道音频信号和第二声道音频信号;
将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
第二方面,本发明实施例还提供了一种电子设备,所述电子设备为第一电子设备,所述电子设备与第二电子设备无线连接,所述第二电子设备包括第一声道播放装置和第二声道播放装置;所述电子设备包括:
获取模块,用于获取目标音频,并将所述目标音频解码为第一声道音频信号和第二声道音频信号;
传输模块,用于将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
第三方面,本发明实施例还提供了一种电子设备,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如第一方面中所述的音频传输方法的步骤。
第四方面,本发明实施例还提供了一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现如第一方面中所述的音频传输方法的步骤。
第五方面,本发明实施例还提供了一种计算机程序产品,存储在计算机可读存储介质中,所述计算机程序产品被至少一个处理器执行以实现如第一方面中所述的音频传输方法的步骤。
第六方面,本发明实施例还提供了一种电子设备,用于执行如第一方面中所述的音频传输方法的步骤。
本发明实施例中,第一电子设备获取目标音频,将所述目标音频解码为第一声道音频信号和第二声道音频信号,并将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。这样,第一电子设备可以通过调用超宽带传输协议27Mbps的传输带宽分别进行左右声道音频信号的传输,增大了对左右声道音频信号的传输带宽,使得第一电子设备能够传输更高品质、更高带宽的音频,避免音频的音质受损。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对本发明实施例描 述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的一种音频传输方法的流程图;
图2是一种电子设备应用图1提供的音频传输方法的一种场景示意图;
图3是本发明实施例提供的一种电子设备的结构图;
图4是本发明实施例提供的另一种电子设备的结构图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明实施例提供了一种音频传输方法,所述音频传输方法应用于第一电子设备,如手机、平板电脑、计算机、可穿戴设备等。其中,所述第一电子设备与第二电子设备无线连接,例如蓝牙连接;所述第二电子设备包括第一声道播放装置和第二声道播放装置,例如所述第二电子设备为耳机,所述第一声道播放装置为左耳机,所述第二声道播放装置为右耳机;或者,所述第二电子设备为音响,所述第一声道播放装置为左声道音响,所述第二声道播放装置为右声道音响。
请参见图1,图1是本发明实施例提供的一种音频传输方法的流程图,如图1所示,所述音频传输方法包括以下步骤:
步骤101、获取目标音频,并将所述目标音频解码为第一声道音频信号和第二声道音频信号。
可选的,所述目标音频可以是第一电子设备中待播放或是正在播放的音频。例如,当第一电子设备接收到用户作用于音乐播放按钮上的触控操作,则获取到目标音频;或者,当第一电子设备接收到用户作用于视频播放按钮上的触控操作,则获取到目标音频。第一电子设备在获取到目标音频的情况下,将所述目标音频解码为第一声道音频信号和第二声道音频信号。
步骤102、将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
为更好的描述本方案,本发明实施例的以下实施方式中,将以耳机作为所述第二电子设备,所述耳机的左耳机为第一声道播放装置,所述耳机的右耳机为第二声道播放装置为例进行具体说明。
本发明实施例中,所述第一电子设备与耳机建立无线连接的情况下,第一电子设备将目标音频解码为左声道音频信号和右声道音频信号,并将所述左声道音频信号通过超宽带(Ultra Wide Band,UWB)传输协议传输至左耳机,将所述右声道音频信号也通过超宽带传输协议传输至右耳机。
可以理解地,电子设备通常设有蓝牙芯片,能够基于蓝牙传输协议将音频信号传输至耳机。但是,蓝牙传输带宽仅3Mbps,再加上传输协议的开销,实际传输音频的速率更小,使得电子设备音频文件的传输受到了限制。而所述超宽带传输协议支持的传输速度已经达到27Mbps,本发明实施例中第一电子设备能够基于超宽带传输协议将左声道音频信号传输至左耳机,将右声道音频信号传输至右耳机,使得第一电子设备能够传输更高品质、更高解析度要求的音频,避免因传输速率较低而造成的音质受损,确保音频的传输质量和播放效果。
作为一种具体的实施方式,所述步骤102可以包括:
通过蓝牙传输协议中的可切换的媒体访问控制器AMP及协议适配层PAL调用超带宽传输协议中的媒体接入控制MAC和物理层PHY,将所述第一声道音频信号传输至所述第一声道播放装置,将所述第二声道音频信号传输至所述第二声道播放装置。
需要说明地,蓝牙传输协议中有可切换的媒体访问控制/物理层(Alternate Medium Access Control/Physical layer,AMP)控制器,AMP是蓝牙传输系统的次要控制器,基础速率和增强速率(Basic Rate/Enhanced Data Rate,BR/EDR)的主要控制器用作搜索、配对、连接建立、连接维持;当两个BR/EDR蓝牙设备逻辑链路控制与适配协议(Logical Link Control and Adaptation Protocol,L2CAP)连接建立后,AMP控制器能检测到另外一个设备的AMP控制器。 当两个蓝牙设备都有AMP控制器,蓝牙传输系统提供一种机制,让数据流从主要控制器迁移到次要控制器。每个AMP控制器有一个协议适配层(Protocol Adaptation Layer,PAL),在协议栈分层架构图中,PAL在媒体接入控制(Medium Access Control,MAC)和物理层(Physical layer,PHY)之上,PAL的功能职责是把主要控制器中的蓝牙协议映射到AMP控制器中去。
本发明实施例中,所述第一电子设备和所述耳机为蓝牙连接。第一电子设备能够在不变更蓝牙传输协议的情况下,利用AMP及PAL作为次要传输链路控制接口,去调用802.15.4a超宽带传输协议中的MAC和PHY进行音频信号的传输,进而以将左声道音频信号传输至左耳机,将右声道音频信号传输至右耳机。这样,第一电子设备可以是在已经设置的蓝牙芯片及已有的蓝牙传输协议的基础上,调用超宽带传输协议27Mbps的传输带宽分别对左右声道音频信号进行传输,增大了音频信号的传输速率,使得第一电子设备能够传输更高品质、更高带宽的音频,避免音频的音质受损,同时又保留了第一电子设备和耳机蓝牙组网和配对的便利性,以及对蓝牙耳机的兼容。
可选的,所述第一电子设备可以是设置有两个第一蓝牙芯片和第二蓝牙芯片,所述第一蓝牙芯片用于对左声道音频信号进行编码,并将编码后的左声道音频信号基于超宽带传输协议传输给左耳机,所述第二蓝牙芯片用于对右声道音频信号进行编码,并将编码后的右声道音频信号基于超宽带传输协议传输给右耳机。这样,第一电子设备能够通过两个蓝牙芯片分别对左声道音频信号和右声道音频信号进行处理和传输,进一步增大了音频的传输通道和传输带宽。
或者,所述第一电子设备也可以是只设置有一个蓝牙芯片,蓝牙芯片在对左声道音频信号和右声道音频信号进行编码后,基于超宽带传输协议将左声道音频信号传输至左耳机,将右声道音频信号传输至右耳机。
可选的,所述步骤102还可以包括:
若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽大于预设带宽,将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
可以理解地,第一电子设备是在已有蓝牙芯片及蓝牙传输协议的基础上,通过AMP及PAL来调用超宽带传输协议中的MAC和PHY来进行音频信号的传输,第一电子设备仍然保留有蓝牙芯片,进而也就仍然能够通过蓝牙传输协议来进行音频信号的传输。
需要说明的是,蓝牙传输协议的带宽为3Mbps,而超宽带传输协议的传输带宽为27Mbps。本发明实施例中,第一电子设备在将目标音频解码为左声道音频信号和右声道音频信号后,可以是对传输左声道音频信号和右声道音频信号所需的传输带宽进行判断,在所需的传输带宽大于预设带宽的情况下,将所述左声道音频信号和右声道音频信号通过超宽带传输协议对应传输至左耳机和右耳机。
例如,所述预设带宽为3Mbps,当传输所述左声道音频信号所需的传输带宽大于3Mbps,传输右声道音频信号所需的传输带宽也大于3Mbps,也就不再适用于通过蓝牙传输协议进行音频信号的传输,则可以选择通过超宽带传输协议来传输左右声道音频信号,以确保第一电子设备能够实现对高品质音频的传输,无需对高品质音频通过高级音频编码(Advanced Audio Coding,AAC)进行压缩-传输-解压缩等操作,避免音质受损。
进一步地,在所述步骤101之后还可以包括:
若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽小于等于所述预设带宽,将所述第一声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述蓝牙传输协议传输至所述第二声道播放装置。
可以理解地,所述蓝牙传输协议的传输带宽为3Mbps,则可以设定所述预设带宽为3Mbps;当传输所述左声道音频信号所需的传输带宽小于或等于3Mbps,传输所述右声道音频信号所需的传输带宽小于或等于3Mbps,则通过蓝牙传输协议将所述左声道音频信号传输至左耳机,将右声道音频信号传输至右耳机。当传输所述左声道音频信号所需的传输带宽大于3Mbps,传输所述右声道音频信号所需的传输带宽大于3Mbps,则通过超宽带传输协议将所述左声道音频信号传输至左耳机,将右声道音频信号传输至右耳机。这样,也就使得第一电子设备能够根据传输音频信号所需的传输带宽,选择不同的 传输方式来对音频信号进行传输,扩展了第一电子设备对于音频的传输方式,增大了音频信号的传输速率,使得第一电子设备能够传输更高品质、更高带宽的音频。
请参照图2,蓝牙芯片通过音频Audio应用层获取目标音频(第一音乐或第二音乐),并将目标音频解码为左声道音频信号(L)和右声道音频信号(R);在所述第一音乐(L+R)的音频信号所需的传输带宽小于等于预设带宽时,通过蓝牙音频传输模型协定(Advanced Audio Distribution Profile,A2DP)和音频/视频在蓝牙设备间的传输协议(Audio/Video Distribution Transport Protocol,AVDTP)对左声道音频信号和右声道音频信号进行编码并通过基带单元和射频单元分别传输给耳机的左耳机和右耳机。需要说明的是,蓝牙传输协议还包括遵循的其他协议及控制层,如会话描述协议(Session Description Protocol,SDP)、AMP、逻辑链路控制和适配层协议(Logical Link Control and Adaptation Layer Protocol,L2CAP)、人机交互(Human Computer Interaction,HCI)控制面、链路管理协议(Link Manager Protocol,LMP)、比特流(Bit Torrent,BT)基带控制层、物理层(Physical,PHY)等。
在传输所述第二音乐(L+R)的音频信号所需的传输带宽大于预设带宽时,通过蓝牙传输协议的AMP和PAL来调用超宽带UWB传输协议中的MAC和PHY,将左声道音频信号和右声道音频信号分别传输至左耳机和右耳机。这样,也就扩展了第一电子设备的音频传输通道,进而能够提升音频文件的传输质量,避免对音频文件音质的损害,确保音频文件的音质效果。
可选的,所述步骤102还可以包括:
若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽大于预设带宽,将第一带宽的第一声道音频信号通过超宽带协议传输至所述第一声道播放装置,将第二带宽的第一声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置;
以及,
将第三带宽的第二声道音频信号通过超宽带协议传输至所述第二声道播放装置,将第四带宽的第二声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置;
其中,所述第一带宽与所述第二带宽的和为传输所述第一声道音频信号所需的带宽;第三带宽与第四带宽的和为传输所述第二声道音频信号所需的带宽。
也就是说,当传输左声道音频信号所需的传输带宽大于3Mbps,则将一部分带宽的左声道音频信号通过超宽带传输协议传输至左耳机,剩下的一部分带宽左声道音频信号通过蓝牙传输协议传输至左耳机。例如,当传输左声道音频信号所需的传输带宽为30Mbps,可以是将其中27Mbps的左声道音频信号通过超宽带传输协议传输至左耳机,剩下的3Mbps的左声道音频信号通过蓝牙传输协议传输至左耳机。这样,也就使得左声道音频信号能够分别通过超宽带传输协议和蓝牙传输协议进行传输,进一步拓展了左声道音频信号的传输带宽和传输途径,使得第一电子设备能够传输高品质的音频,为用户带来更好的听感体验。
同样的原理,当传输右声道音频信号所需的传输带宽大于3Mbps,则将一部分带宽的右声道音频信号通过超宽带传输协议传输至右耳机,剩下的一部分带宽右声道音频信号通过蓝牙传输协议传输至右耳机,进一步拓展了右声道音频信号的传输带宽和传输途径,确保第一电子设备能够传输高品质的音频。
本发明实施例中,第一电子设备获取目标音频,将所述目标音频解码为第一声道音频信号和第二声道音频信号,并将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。这样,第一电子设备可以通过调用超宽带传输协议27Mbps的传输带宽分别进行左右声道音频信号的传输,增大了对左右声道音频信号的传输带宽,使得第一电子设备能够传输更高品质、更高带宽的音频,避免音频的音质受损。
请参见图3,图3是本发明实施例提供的一种电子设备的结构图,所述电子设备为第一电子设备,所述电子设备与第二电子设备无线连接,所述第二电子设备包括第一声道播放装置和第二声道播放装置。如图3所示,所述电子设备300包括:
获取模块301,用于获取目标音频,并将所述目标音频解码为第一声道 音频信号和第二声道音频信号;
传输模块302,用于将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
可选的,所述传输模块302还用于:
通过蓝牙传输协议中的可切换的媒体访问控制器AMP及协议适配层PAL调用超带宽传输协议中的媒体接入控制MAC和物理层PHY,将所述第一声道音频信号传输至所述第一声道播放装置,将所述第二声道音频信号传输至所述第二声道播放装置。
可选的,所述传输模块302还用于:
若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽大于预设带宽,将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
可选的,所述传输模块302还用于:
若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽大于预设带宽,将第一带宽的第一声道音频信号通过超宽带协议传输至所述第一声道播放装置,将第二带宽的第一声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置;
以及,
将第三带宽的第二声道音频信号通过超宽带协议传输至所述第二声道播放装置,将第四带宽的第二声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置;
其中,所述第一带宽与所述第二带宽的和为传输所述第一声道音频信号所需的带宽;第三带宽与第四带宽的和为传输所述第二声道音频信号所需的带宽。
可选的,所述传输模块302还用于:
若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽小于等于所述预设带宽,将所述第一声道音频信号通过蓝牙传输协议传输至 所述第一声道播放装置,将所述第二声道音频信号通过所述蓝牙传输协议传输至所述第二声道播放装置。
需要说明的是,电子设备300能够实现图1所述的音频传输方法实施例的各个过程,并能达到相同的技术效果,为避免重复,这里不再赘述。
本发明实施例中,电子设备300获取目标音频,将所述目标音频解码为第一声道音频信号和第二声道音频信号,并将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。这样,电子设备300可以通过调用超宽带传输协议27Mbps的传输带宽分别进行左右声道音频信号的传输,增大了对左右声道音频信号的传输带宽,使得电子设备300能够传输更高品质、更高带宽的音频,避免音频的音质受损。
请参照图4,图4为实现本发明实施例的另一种电子设备的结构图,电子设备400能够实现图1所述的音频传输方法实施例的各个过程,并能达到相同的技术效果。如图4所示,电子设备400包括但不限于:射频单元401、网络模块402、音频输出单元403、输入单元404、传感器405、显示单元406、用户输入单元407、接口单元408、存储器409、处理器410、以及电源411等部件。本领域技术人员可以理解,图4中示出的电子设备结构并不构成对电子设备400的限定,电子设备400可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。在本发明实施例中,电子设备400包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
其中,处理器410,用于:
获取目标音频,并将所述目标音频解码为第一声道音频信号和第二声道音频信号;
射频单元401,用于将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
可选的,射频单元401,还用于:
通过蓝牙传输协议中的可切换的媒体访问控制器AMP及协议适配层 PAL调用超带宽传输协议中的媒体接入控制MAC和物理层PHY,将所述第一声道音频信号传输至所述第一声道播放装置,将所述第二声道音频信号传输至所述第二声道播放装置。
可选的,射频单元401,还用于:
若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽大于预设带宽,将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
可选的,射频单元401,还用于:
若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽大于预设带宽,将第一带宽的第一声道音频信号通过超宽带协议传输至所述第一声道播放装置,将第二带宽的第一声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置;
以及,
将第三带宽的第二声道音频信号通过超宽带协议传输至所述第二声道播放装置,将第四带宽的第二声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置;
其中,所述第一带宽与所述第二带宽的和为传输所述第一声道音频信号所需的带宽;第三带宽与第四带宽的和为传输所述第二声道音频信号所需的带宽。
可选的,射频单元401,还用于:
若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽小于等于所述预设带宽,将所述第一声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述蓝牙传输协议传输至所述第二声道播放装置。
本发明实施例中,电子设备400获取目标音频,将所述目标音频解码为第一声道音频信号和第二声道音频信号,并将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。这样,电子设备400可 以通过调用超宽带传输协议27Mbps的传输带宽分别进行左右声道音频信号的传输,增大了对左右声道音频信号的传输带宽,使得电子设备400能够传输更高品质、更高带宽的音频,避免音频的音质受损。
应理解的是,本发明实施例中,射频单元401可用于收发信息或通话过程中,信号的接收和发送,具体的,将来自基站的下行数据接收后,给处理器410处理;另外,将上行的数据发送给基站。通常,射频单元401包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外,射频单元401还可以通过无线通信系统与网络和其他设备通信。
电子设备400通过网络模块402为用户提供了无线的宽带互联网访问,如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元403可以将射频单元401或网络模块402接收的或者在存储器409中存储的音频数据转换成音频信号并且输出为声音。而且,音频输出单元403还可以提供与电子设备400执行的特定功能相关的音频输出(例如,呼叫信号接收声音、消息接收声音等等)。音频输出单元403包括扬声器、蜂鸣器以及受话器等。
输入单元404用于接收音频或视频信号。输入单元404可以包括图形处理器(Graphics Processing Unit,GPU)4041和麦克风4042,图形处理器4041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图像或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元406上。经图形处理器4041处理后的图像帧可以存储在存储器409(或其它计算机可读存储介质)中或者经由射频单元401或网络模块402进行发送。麦克风4042可以接收声音,并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元401发送到移动通信基站的格式输出。
电子设备400还包括至少一种传感器405,比如光传感器、运动传感器以及其他传感器。具体地,光传感器包括环境光传感器及接近传感器,其中,环境光传感器可根据环境光线的明暗来调节显示面板4041的亮度,接近传感器可在电子设备400移动到耳边时,关闭显示面板4041和/或背光。作为运动传感器的一种,加速计传感器可检测各个方向上(一般为三轴)加速度的 大小,静止时可检测出重力的大小及方向,可用于识别电子设备姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等;传感器405还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等,在此不再赘述。
显示单元406用于显示由用户输入的信息或提供给用户的信息。显示单元406可包括显示面板4041,可以采用液晶显示器(Liquid Crystal Display,LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板4041。
用户输入单元407可用于接收输入的数字或字符信息,以及产生与电子设备400的用户设置以及功能控制有关的键信号输入。具体地,用户输入单元407包括触控面板4071以及其他输入设备4072。触控面板4071,也称为触摸屏,可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板4071上或在触控面板4071附近的操作)。触控面板4071可包括触摸检测装置和触摸控制器两个部分。其中,触摸检测装置检测用户的触摸方位,并检测触摸操作带来的信号,将信号传送给触摸控制器;触摸控制器从触摸检测装置上接收触摸信息,并将它转换成触点坐标,再送给处理器410,接收处理器410发来的命令并加以执行。此外,可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板4071。除了触控面板4071,用户输入单元407还可以包括其他输入设备4072。具体地,其他输入设备4072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
进一步的,触控面板4071可覆盖在显示面板4041上,当触控面板4071检测到在其上或附近的触摸操作后,传送给处理器410以确定触摸事件的类型,随后处理器410根据触摸事件的类型在显示面板4041上提供相应的视觉输出。虽然在图4中,触控面板4071与显示面板4041是作为两个独立的部件来实现电子设备400的输入和输出功能,但是在某些实施例中,可以将触控面板4071与显示面板4041集成而实现电子设备400的输入和输出功能,具体此处不做限定。
接口单元408为外部装置与电子设备400连接的接口。例如,外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元408可以用于接收来自外部装置的输入(例如,数据信息、电力等等)并且将接收到的输入传输到电子设备400内的一个或多个元件或者可以用于在电子设备400和外部装置之间传输数据。
存储器409可用于存储软件程序以及各种数据。存储器409可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等;存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外,存储器409可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器410是电子设备400的控制中心,利用各种接口和线路连接整个电子设备400的各个部分,通过运行或执行存储在存储器409内的软件程序和/或模块,以及调用存储在存储器409内的数据,执行电子设备400的各种功能和处理数据,从而对电子设备400进行整体监控。处理器410可包括一个或多个处理单元;优选的,处理器410可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序等,调制解调处理器主要处理无线通信。可以理解的是,上述调制解调处理器也可以不集成到处理器410中。
电子设备400还可以包括给各个部件供电的电源411(比如电池),优选的,电源411可以通过电源管理系统与处理器410逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外,电子设备400包括一些未示出的功能模块,在此不再赘述。
可选的,本发明实施例还提供一种电子设备,包括处理器,存储器,存储在存储器上并可在所述处理器上运行的计算机程序,该计算机程序被处理器执行时实现图1所述音频传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本发明实施例还提供一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现图1所述音频传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等。
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、物品或者装置不仅包括那些要素,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、物品或者装置所固有的要素。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、物品或者装置中还存在另外的相同要素。
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,本发明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(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本发明各个实施例所述的方法。
以上所述,仅为本发明的具体实施方式,但本发明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发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。

Claims (14)

  1. 一种音频传输方法,应用于第一电子设备,所述第一电子设备与第二电子设备无线连接,所述第二电子设备包括第一声道播放装置和第二声道播放装置;其中,所述音频传输方法包括:
    获取目标音频,并将所述目标音频解码为第一声道音频信号和第二声道音频信号;
    将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
  2. 根据权利要求1所述的方法,其中,所述将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置,包括:
    通过蓝牙传输协议中的可切换的媒体访问控制器AMP及协议适配层PAL调用超带宽传输协议中的媒体接入控制MAC和物理层PHY,将所述第一声道音频信号传输至所述第一声道播放装置,将所述第二声道音频信号传输至所述第二声道播放装置。
  3. 根据权利要求1所述的方法,其中,所述将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置,包括:
    若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽大于预设带宽,将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
  4. 根据权利要求3所述的方法,其中,若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽大于预设带宽,将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置,包括:
    若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽 大于预设带宽,将第一带宽的第一声道音频信号通过超宽带协议传输至所述第一声道播放装置,将第二带宽的第一声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置;
    以及,
    将第三带宽的第二声道音频信号通过超宽带协议传输至所述第二声道播放装置,将第四带宽的第二声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置;
    其中,所述第一带宽与所述第二带宽的和为传输所述第一声道音频信号所需的带宽;第三带宽与第四带宽的和为传输所述第二声道音频信号所需的带宽。
  5. 根据权利要求3所述的方法,其中,在所述获取目标音频,并将所述目标音频解码为第一声道音频信号和第二声道音频信号之后,所述方法还包括:
    若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽小于等于所述预设带宽,将所述第一声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述蓝牙传输协议传输至所述第二声道播放装置。
  6. 一种电子设备,所述电子设备为第一电子设备,所述电子设备与第二电子设备无线连接,所述第二电子设备包括第一声道播放装置和第二声道播放装置;其中,所述电子设备包括:
    获取模块,用于获取目标音频,并将所述目标音频解码为第一声道音频信号和第二声道音频信号;
    传输模块,用于将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
  7. 根据权利要求6所述的电子设备,其中,所述传输模块还用于:
    通过蓝牙传输协议中的可切换的媒体访问控制器AMP及协议适配层PAL调用超带宽传输协议中的媒体接入控制MAC和物理层PHY,将所述第一声道音频信号传输至所述第一声道播放装置,将所述第二声道音频信号传 输至所述第二声道播放装置。
  8. 根据权利要求6所述的电子设备,其中,所述传输模块还用于:
    若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽大于预设带宽,将所述第一声道音频信号通过超宽带传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述超宽带传输协议传输至所述第二声道播放装置。
  9. 根据权利要求8所述的电子设备,其中,所述传输模块还用于:
    若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽大于预设带宽,将第一带宽的第一声道音频信号通过超宽带协议传输至所述第一声道播放装置,将第二带宽的第一声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置;
    以及,
    将第三带宽的第二声道音频信号通过超宽带协议传输至所述第二声道播放装置,将第四带宽的第二声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置;
    其中,所述第一带宽与所述第二带宽的和为传输所述第一声道音频信号所需的带宽;第三带宽与第四带宽的和为传输所述第二声道音频信号所需的带宽。
  10. 根据权利要求8所述的电子设备,其中,所述传输模块还用于:
    若传输所述第一声道音频信号和所述第二声道音频信号所需的传输带宽小于等于所述预设带宽,将所述第一声道音频信号通过蓝牙传输协议传输至所述第一声道播放装置,将所述第二声道音频信号通过所述蓝牙传输协议传输至所述第二声道播放装置。
  11. 一种电子设备,所述电子设备为第一电子设备,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至5中任一项所述的音频传输方法的步骤。
  12. 一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至5中任一项所述的音频传输方法的步 骤。
  13. 一种计算机程序产品,存储在计算机可读存储介质中,所述计算机程序产品被至少一个处理器执行以实现如权利要求1至5中任一项所述的音频传输方法的步骤。
  14. 一种电子设备,所述电子设备为第一电子设备,用于执行如权利要求1至5中任一项所述的音频传输方法的步骤。
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