CN115243164A - Audio transmission system based on LE Audio bluetooth - Google Patents

Audio transmission system based on LE Audio bluetooth Download PDF

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Publication number
CN115243164A
CN115243164A CN202210612453.4A CN202210612453A CN115243164A CN 115243164 A CN115243164 A CN 115243164A CN 202210612453 A CN202210612453 A CN 202210612453A CN 115243164 A CN115243164 A CN 115243164A
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China
Prior art keywords
audio
signals
bluetooth
signal
radio frequency
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CN202210612453.4A
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Chinese (zh)
Inventor
蔡景溪
梁永治
付洪兵
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Shenzhen Fenda Technology Co Ltd
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Shenzhen Fenda Technology Co Ltd
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Priority to CN202210612453.4A priority Critical patent/CN115243164A/en
Publication of CN115243164A publication Critical patent/CN115243164A/en
Pending legal-status Critical Current

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    • 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
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/48—Transceivers
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transceivers (AREA)

Abstract

The invention discloses an Audio transmission system based on LE Audio Bluetooth, which comprises Audio transmitting equipment and Audio receiving equipment, wherein the Audio transmitting equipment is connected with the Audio receiving equipment through a network; an LE Audio Bluetooth transmitting module is arranged in the Audio transmitting equipment, and modulates the Audio signals received by the Audio transmitting equipment to generate radio frequency signals and transmits the radio frequency signals; an LE Audio Bluetooth receiving module is arranged in the Audio receiving equipment and used for receiving the radio frequency signals, decoding the radio frequency signals to obtain radio frequency signals of corresponding sound channels, modulating the radio frequency signals of the corresponding sound channels to generate Audio signals of the corresponding sound channels and forwarding the Audio signals; the audio signal is a combination of one or more of a mono audio signal and a multi-channel audio signal. The invention can solve the problems that the cost is high or one transmitting point can not be compatible with a plurality of receiving points in the audio signal transmission process in the prior art.

Description

Audio transmission system based on LE Audio bluetooth
Technical Field
The invention relates to Audio equipment, in particular to an LE Audio Bluetooth-based Audio transmission system.
Background
Currently, there are many devices on the market for wirelessly transmitting audio signals of surround channels and subwoofer channels, and WIFI (such as 2.4G, 5.8G) or bluetooth 2.0 is generally adopted to realize the transmission of audio signals. However, for the WIFI method, although one transmission point to one receiving point or one transmission point to multiple receiving points are implemented for signal transmission, it has the problems of high cost and complex implementation;
for the bluetooth 2.0 mode, it can only transmit the audio signal from one transmitting point to one receiving point, and meanwhile, it has the problem of signal delay time, and it cannot realize the transmission of the audio signal from one transmitting point to multiple receiving points.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an Audio transmission system based on LE Audio bluetooth, which can solve the problem that the existing Audio signal transmission cost is high or the existing Audio transmission system cannot be compatible with the signal transmission of one transmitting point to multiple receiving points.
The purpose of the invention is realized by adopting the following technical scheme:
the Audio transmission system based on the LE Audio Bluetooth comprises an Audio transmitting device and an Audio receiving device; the Audio transmitting equipment is internally provided with an LE Audio Bluetooth transmitting module which is used for modulating an Audio signal received by the Audio transmitting equipment to generate a radio frequency signal and then transmitting the radio frequency signal;
an LE Audio Bluetooth receiving module is arranged in the Audio receiving equipment and is in communication connection with an LE Audio Bluetooth transmitting module in the Audio transmitting equipment through the LE Audio Bluetooth;
the LE Audio Bluetooth receiving module is used for receiving the radio frequency signals, decoding the radio frequency signals to obtain radio frequency signals of corresponding sound channels, modulating the radio frequency signals of the corresponding sound channels to generate Audio signals of the corresponding sound channels, and forwarding the Audio signals; the audio signal is a combination of one or more of a monophonic audio signal and a multichannel audio signal.
Furthermore, a plurality of audio acquisition modules are arranged in the audio transmitting equipment; and each Audio acquisition device is respectively used for receiving the corresponding Audio signal and sending the received corresponding Audio signal to the LE Audio Bluetooth transmitting module.
Further, when the audio signal is an analog audio signal: the LE Audio Bluetooth transmitting module is used for converting the received analog Audio signals into corresponding digital Audio signals and then modulating the digital Audio signals into radio frequency signals; the LE Audio Bluetooth receiving module is used for decoding the received radio frequency signals to obtain radio frequency signals of corresponding sound channels, modulating the radio frequency signals to generate corresponding digital Audio signals, converting the digital Audio signals into corresponding Audio signals and forwarding the Audio signals
When the audio signal is a digital audio signal: the LE Audio Bluetooth transmitting module is used for directly modulating the received digital Audio signals to generate radio frequency signals; and the LE Audio Bluetooth receiving module is used for decoding the received radio frequency signals to obtain radio frequency signals of corresponding sound channels, directly modulating the radio frequency signals to generate corresponding Audio signals and forwarding the Audio signals.
Further, when the Audio signal is a monaural Audio signal, the LE Audio bluetooth receiving module is configured to decode and modulate the received radio frequency signal to generate an Audio signal with a corresponding channel, and forward the Audio signal through the corresponding channel.
Further, when the Audio signal is a multichannel Audio signal, the LE Audio bluetooth receiving module is configured to decode and modulate the received radio frequency signal to generate a multichannel Audio signal and forward the multichannel Audio signal, or decode and modulate the received radio frequency signal to generate a multi-channel monaural Audio signal and forward the multi-channel monaural Audio signal through a corresponding channel.
Further, when the Audio signals are monaural Audio signals and multichannel Audio signals, the LE Audio bluetooth receiving module comprises a first LE Audio bluetooth receiving module and a second LE Audio bluetooth receiving module;
the first LE Audio Bluetooth receiving module is used for decoding and modulating the received radio frequency signals to generate corresponding single-channel Audio signals and then forwarding the single-channel Audio signals through corresponding sound channels;
and the second LE Audio Bluetooth receiving module is used for decoding and modulating the received radio frequency signals to generate Audio signals corresponding to multiple channels and then forwarding the Audio signals through the corresponding channels.
Further, when the Audio signal is a mixed signal composed of a monaural Audio signal and a multichannel Audio signal, the LE Audio bluetooth receiving module includes a first LE Audio bluetooth receiving module and a plurality of third LE Audio bluetooth receiving modules;
the first LE Audio Bluetooth receiving module is used for decoding and modulating the received radio frequency signal to obtain a corresponding single-channel Audio signal and then forwarding the Audio signal;
and each third LE Audio Bluetooth receiving module is used for decoding and modulating the received radio frequency signals to generate a corresponding single-channel Audio signal and forwarding the Audio signal.
Furthermore, when the Audio signal is a mixed signal, the LE Audio bluetooth transmitting module is configured to transmit the radio frequency signals of different Audio signals through the multiple antennas respectively or sequentially transmit the radio frequency signals of different Audio signals in a time-sharing manner.
Furthermore, the Audio receiving device comprises a plurality of Audio receiving devices, wherein an LE Audio Bluetooth receiving module is arranged in each Audio receiving device and is in communication connection with an LE Audio Bluetooth transmitting module in the Audio transmitting device.
Further, the radio frequency signal is a 2.4G radio frequency signal.
Compared with the prior art, the invention has the beneficial effects that:
the invention can realize the sending and receiving of multi-channel Audio signals by embedding the LE Audio Bluetooth module in the Audio equipment of the transmitting end or the Audio equipment of the receiving end by the new Bluetooth technology, not only can realize the sending of one transmitting point to one receiving point, but also can realize the signal sending of one transmitting point to a plurality of receiving points, and simultaneously has the advantages of low cost, short time delay and the like.
Drawings
Fig. 1 is a schematic diagram of an Audio transmission system based on LE Audio bluetooth when the Audio signal provided by the present invention is an analog Audio signal or a digital Audio signal;
fig. 2 is a schematic diagram of an Audio transmission system based on LE Audio bluetooth when the Audio signal provided by the present invention is a stereo Audio signal;
fig. 3 is a second schematic diagram of an Audio transmission system based on LE Audio bluetooth when the Audio signal provided by the present invention is a stereo Audio signal;
fig. 4 is one of schematic diagrams of an LE Audio bluetooth-based Audio transmission system when the Audio signal provided by the present invention is a mixed signal;
fig. 5 is a schematic diagram of an Audio transmission system based on LE Audio bluetooth when the Audio signal provided by the present invention is a mixed signal.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Based on the drawbacks of the prior art, the present invention provides a preferred embodiment, as shown in fig. 1-5, an LE Audio bluetooth-based Audio transmission system, comprising an Audio transmitting device and an Audio receiving device.
The Audio transmitting equipment is internally provided with an LE Audio Bluetooth transmitting module which is used for modulating the Audio signals received by the Audio transmitting equipment to generate radio frequency signals and then transmitting the radio frequency signals.
Preferably, the radio frequency signal is a 2.4G radio frequency signal. That is, when the audio signal is sent out, the audio signal is modulated into a 2.4G radio frequency signal, and then the audio signal is sent out in a WIFI antenna mode.
The audio signal may include a monaural audio signal, may include a multichannel audio signal, or may be a combination of the monaural audio signal and the multichannel audio signal.
Similarly, when the audio signals include multiple types of audio signals, the LE adiio bluetooth transmission module further modulates the different types of audio signals respectively to generate 2.4G radio frequency signals, and then transmits the radio frequency signals through multiple antennas or transmits the radio frequency signals in a time-sharing and segmented manner.
Preferably, an LE Audio bluetooth receiving module is arranged in the Audio receiving device, and the LE Audio bluetooth receiving module is in communication connection with an LE Audio bluetooth transmitting module of the Audio transmitting device through LE Audio bluetooth, so as to realize transmission of Audio signals. More preferably, the LE Audio bluetooth receiving module is configured to receive the radio frequency signal, decode the radio frequency signal to obtain a radio frequency signal of a corresponding sound channel, and modulate the radio frequency signal of the corresponding sound channel to generate an Audio signal of the corresponding sound channel, and forward the Audio signal.
Preferably, the LE Audio bluetooth receiving module in the Audio receiving device defines the channel parameters of the Audio signal to be received, and the like, that is, after the radio frequency signal is received, the radio frequency signal of the corresponding channel is obtained after the radio frequency signal is decoded, and the radio frequency signals of other channels are directly discarded.
Preferably, a plurality of Audio acquisition modules are further arranged in the Audio transmitting device, and each Audio acquisition device is respectively used for receiving the corresponding Audio signal and sending the received corresponding Audio signal to the LE Audio bluetooth transmitting module. That is, the audio transmitting device receives the audio signal through being in communication connection with other audio signal generating devices, and then transmits the received audio signal through the LE adduio bluetooth transmitting module.
More preferably, the audio signals include analog audio signals and digital audio signals, and different technical means are adopted when different types of audio signals are modulated into radio frequency signals. Specifically, when the Audio signal is an analog Audio signal, the LE Audio bluetooth transmitting module is configured to convert the received analog Audio signal into a corresponding digital Audio signal and then modulate the digital Audio signal into a corresponding radio frequency signal.
Similarly, the LE Audio bluetooth receiving module is further configured to decode the received radio frequency signal to obtain a radio frequency signal of a corresponding sound channel, modulate the radio frequency signal to generate a corresponding digital Audio signal, convert the digital Audio signal into a corresponding Audio signal, and forward the corresponding Audio signal.
And when the Audio signal is a digital Audio signal, the LE Audio Bluetooth transmitting module is used for directly modulating the received digital Audio signal to generate a radio frequency signal. And the LE Audio Bluetooth receiving module is used for decoding the received radio frequency signals to obtain radio frequency signals of corresponding sound channels, directly modulating the radio frequency signals to generate corresponding Audio signals and then forwarding the Audio signals.
That is, for analog audio signals, the transmitting end needs to perform analog-to-digital conversion and then perform modulation; at a receiving end, firstly, the radio frequency signal is modulated to generate a corresponding digital audio signal, and then digital-to-analog conversion is carried out. For digital audio signals, no analog-to-digital conversion or digital-to-analog conversion operation is required.
More preferably, as shown in fig. 1, when the Audio signal is a monaural Audio signal, the LE Audio bluetooth receiving module of the Audio transmitting device is configured to modulate the received monaural Audio signal to generate a radio frequency signal, and then forward the radio frequency signal. And the LE Audio Bluetooth receiving module of the Audio receiving equipment is used for decoding and modulating the received radio frequency signals to generate Audio signals of corresponding sound channels and forwarding the Audio signals through the corresponding sound channels. That is, the present invention can realize the transmission of a monophonic audio signal.
The audio signal may be a subwoofer analog audio signal or a subwoofer digital audio signal.
Preferably, when the Audio signal is a multi-channel Audio signal, the LE Audio transmitting module of the Audio transmitting device is configured to modulate the received multi-channel Audio signal to generate a corresponding radio frequency signal, and forward the radio frequency signal. And the LE Audio receiving module of the Audio receiving equipment is used for decoding and modulating the received radio frequency signals to generate multi-channel Audio signals and forwarding the multi-channel Audio signals, or decoding and modulating the received radio frequency signals to generate a plurality of single-channel Audio signals and forwarding the single-channel Audio signals through corresponding channels. That is, for the Audio signals of multiple channels, the LE Audio bluetooth receiving module of the Audio receiving device may directly receive and forward the Audio signals of multiple channels, or may decode and divide the Audio signals into Audio signals of single channel to receive and forward the Audio signals. Specifically, as shown in fig. 2-3 in this embodiment, the LE Audio receiving module of the Audio receiving apparatus in fig. 2 directly decodes and modulates the received radio frequency signal into a stereo Audio signal, and forwards the stereo Audio signal. For the audio receiving device in fig. 3, the audio receiving device decodes and modulates the audio signal to generate a left channel audio signal and a right channel audio signal, and the signals are respectively forwarded out.
Preferably, when the Audio signal is a mixed signal of a mono Audio signal and a multi-channel Audio signal, the LE Audio bluetooth receiving module of the Audio receiving device includes a first LE Audio bluetooth receiving module and a second LE Audio bluetooth receiving module.
The first LE Audio Bluetooth receiving module is used for decoding the received radio frequency signals to obtain single-channel Audio signals, modulating the single-channel Audio signals to generate corresponding single-channel Audio signals, and then forwarding the single-channel Audio signals through corresponding sound channels.
And the second LE Audio Bluetooth receiving module is used for decoding the received radio frequency signals to obtain stereo Audio signals, modulating the stereo Audio signals to generate corresponding stereo Audio signals, and forwarding the corresponding stereo Audio signals through corresponding sound channels.
That is, for an Audio receiving device, the built-in LE Audio bluetooth receiving modules can be configured to implement receiving and forwarding of a mono Audio signal and a multi-channel Audio signal. Specifically, as shown in fig. 4, when the audio signals include a low-sound-cannon audio signal and a stereo audio signal:
for the Audio transmitting device, the LE Audio bluetooth transmitting module is configured to modulate the Audio signal to generate a corresponding radio frequency signal and forward the radio frequency signal.
For the Audio receiving device, the first LE Audio bluetooth receiving module decodes and modulates the received radio frequency signal to generate a corresponding low-sound gun Audio signal, and then forwards the signal through a corresponding sound channel.
And the second LE Audio Bluetooth receiving module is used for decoding and modulating the received radio frequency signals to generate corresponding stereo Audio signals and then forwarding the stereo Audio signals through corresponding sound channels.
Or, as shown in fig. 5, the LE Audio bluetooth receiving module of the first Audio receiving device includes a first LE Audio bluetooth receiving module, a third LE Audio bluetooth receiving module, and a fourth LE Audio bluetooth receiving module.
The first LE Audio Bluetooth receiving module is used for decoding the received radio frequency signals to obtain single-channel Audio signals, modulating the single-channel Audio signals to generate corresponding single-channel Audio signals, and then forwarding the single-channel Audio signals through corresponding sound channels.
And the third LE Audio Bluetooth receiving module is used for decoding the received radio frequency signals to obtain stereo Audio signals, modulating the stereo Audio signals to generate a left channel Audio signal, and forwarding the left channel Audio signal through a corresponding channel.
And the fourth LE Audio Bluetooth receiving module is used for decoding the received radio frequency signals to obtain stereo Audio signals, modulating the stereo Audio signals to generate a path of right channel Audio signals, and forwarding the right channel Audio signals through corresponding channels.
Preferably, there may be a plurality of audio receiving devices in the present invention. Each Audio receiving device can set the number of the LE Audio Bluetooth receiving modules in the Audio receiving device according to the signal forwarding requirement, so that when the Audio receiving device is in communication connection with the Audio reflecting device, the receiving and forwarding of the Audio signals of the corresponding sound channels can be realized. For example, when the mobile device is connected to the headset via bluetooth, two headsets can play Audio signals of different sound channels by respectively arranging one LE Audio bluetooth receiving module in the left headset and one LE Audio bluetooth receiving module in the right headset. Or, for example, two LE add bluetooth receiving modules are arranged in the bluetooth headset, and are respectively used for processing audio signals of different sound channels and then forwarding the audio signals to the corresponding left headset or right headset to realize playing of the corresponding audio signals.
Similarly, the mobile device is connected with a plurality of sound equipment, sets up an LE Audio bluetooth receiving module in every sound equipment, realizes that different sound equipment broadcast the Audio signal of different sound channels. Certainly, a plurality of LE Audio bluetooth receiving modules may also be arranged in the device to decode Audio signals of different channels and then forward the decoded Audio signals to other devices for playing.
Compared with the traditional Bluetooth mode, the invention can realize the signal transmission of one transmitting point to one receiving point and the signal transmission of one transmitting point to a plurality of receiving points; meanwhile, compared with the implementation mode through WIFI, the WIFI-based wireless communication system is higher in cost and simple to implement.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (10)

1. The Audio transmission system based on LE Audio Bluetooth is characterized by comprising Audio transmitting equipment and Audio receiving equipment; the Audio transmitting equipment is internally provided with an LE Audio Bluetooth transmitting module which is used for modulating an Audio signal received by the Audio transmitting equipment to generate a radio frequency signal and then transmitting the radio frequency signal;
an LE Audio Bluetooth receiving module is arranged in the Audio receiving equipment and is in communication connection with an LE Audio Bluetooth transmitting module in the Audio transmitting equipment through the LE Audio Bluetooth;
the LE Audio Bluetooth receiving module is used for receiving the radio frequency signals, decoding the radio frequency signals to obtain radio frequency signals of corresponding sound channels, modulating the radio frequency signals of the corresponding sound channels to generate Audio signals of the corresponding sound channels and forwarding the Audio signals; the audio signal is a combination of one or more of a single-channel audio signal and a multi-channel audio signal.
2. The LE Audio bluetooth-based Audio transmission system according to claim 1, wherein a plurality of Audio acquisition modules are further disposed in the Audio transmitting device; and each Audio acquisition device is respectively used for receiving the corresponding Audio signal and sending the received corresponding Audio signal to the LE Audio Bluetooth transmitting module.
3. The LE Audio bluetooth-based Audio transmission system of claim 1, wherein when the Audio signal is an analog Audio signal: the LE Audio Bluetooth transmitting module is used for converting the received analog Audio signals into corresponding digital Audio signals and then modulating the digital Audio signals into radio frequency signals; the LE Audio Bluetooth receiving module is used for decoding the received radio frequency signals to obtain radio frequency signals of corresponding sound channels, modulating the radio frequency signals to generate corresponding digital Audio signals, converting the digital Audio signals into corresponding Audio signals and forwarding the Audio signals
When the audio signal is a digital audio signal: the LE Audio Bluetooth transmitting module is used for directly modulating the received digital Audio signals to generate radio frequency signals; and the LE Audio Bluetooth receiving module is used for decoding the received radio frequency signals to obtain radio frequency signals of corresponding sound channels, directly modulating the radio frequency signals to generate corresponding Audio signals and forwarding the Audio signals.
4. The LE Audio bluetooth-based Audio transmission system of claim 1, wherein, when the Audio signal is a mono Audio signal, the LE Audio bluetooth receiving module is configured to decode and modulate the received radio frequency signal to generate an Audio signal with a corresponding channel, and forward the Audio signal with the corresponding channel.
5. The LE Audio Bluetooth based Audio transmission system of claim 1, wherein when the Audio signal is a multi-channel Audio signal, the LE Audio Bluetooth receiving module is configured to decode and modulate the received RF signal to generate a multi-channel Audio signal for retransmission, or decode and modulate the received RF signal to generate a multi-channel single-channel Audio signal for retransmission via corresponding channels.
6. The LE Audio bluetooth-based Audio transmission system of claim 1, wherein the LE Audio bluetooth receiving module comprises a first LE Audio bluetooth receiving module and a second LE Audio bluetooth receiving module when the Audio signals are a mono Audio signal and a multi-channel Audio signal;
the first LE Audio Bluetooth receiving module is used for decoding and modulating the received radio frequency signals to generate corresponding single-channel Audio signals and then forwarding the single-channel Audio signals through corresponding sound channels;
and the second LE Audio Bluetooth receiving module is used for decoding and modulating the received radio frequency signals to generate Audio signals of corresponding multiple channels and then forwarding the Audio signals through the corresponding channels.
7. The LE Audio Bluetooth based Audio transmission system of claim 1, wherein when the Audio signal is a mixture of a mono Audio signal and a multichannel Audio signal, the LE Audio Bluetooth receiving modules comprise a first LE Audio Bluetooth receiving module and a plurality of third LE Audio Bluetooth receiving modules;
the first LE Audio Bluetooth receiving module is used for decoding and modulating the received radio frequency signal to obtain a corresponding single-channel Audio signal and then forwarding the Audio signal;
and each third LE Audio Bluetooth receiving module is used for decoding and modulating the received radio frequency signals to generate a path of corresponding single-channel Audio signals and forwarding the path of corresponding single-channel Audio signals.
8. The LE Audio Bluetooth based Audio transmission system of claim 7, wherein when the Audio signals are mixed signals, the LE Audio Bluetooth transmitting module is configured to transmit the RF signals of different Audio signals through a plurality of antennas respectively or sequentially transmit the RF signals of different Audio signals in a time-division manner.
9. The LE Audio bluetooth-based Audio transmission system according to claim 1, wherein the Audio receiving device comprises a plurality of Audio receiving devices, each Audio receiving device is provided with an LE Audio bluetooth receiving module, and the Audio receiving device is communicatively connected to an LE Audio bluetooth transmitting module in the Audio transmitting device.
10. An LE Audio bluetooth-based Audio transmission system according to claim 1, wherein said radio frequency signal is a 2.4G radio frequency signal.
CN202210612453.4A 2022-05-31 2022-05-31 Audio transmission system based on LE Audio bluetooth Pending CN115243164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210612453.4A CN115243164A (en) 2022-05-31 2022-05-31 Audio transmission system based on LE Audio bluetooth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210612453.4A CN115243164A (en) 2022-05-31 2022-05-31 Audio transmission system based on LE Audio bluetooth

Publications (1)

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CN115243164A true CN115243164A (en) 2022-10-25

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