Bluetooth audio broadcasting system and multi-member Bluetooth device
A broadcast system and Bluetooth audio technology, applied in the Bluetooth field, can solve the problems of different volume sensitivity and tolerance, user fright, and obstacles to the development prospect of BLE audio technology.
Pending Publication Date: 2022-06-21
REALTEK SEMICON CORP
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Problems solved by technology
For example, an audio broadcast at an unpredictable volume may cause discomfort or displeasure to some users, and some users may even be startled by receiving an audio broadcast at an unexpected and loud volume
Furthermore, different users have different sensitivity and tolerance for volume, so a single volume setting obviously cannot meet the needs of different users at the same time.
[0005]
Therefore, when multi-member Bluetooth devices are used to receive and play audio broadcasts using BLE audio technology, if the volume playback of different Bluetooth member devices in the multi-member Bluetooth devices cannot be flexibly and synchronously adjusted, the BLE audio technology will be affected in the audio broadcast. The prospect of development in the application poses a serious obstacle
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[0032] The embodiments of the present invention will be described below with reference to the relevant drawings. In the drawings, the same reference numbers refer to the same or similar elements or method flows.
[0033] figure 1 It is a simplified functional block diagram of the Bluetooth audio broadcasting system 100 according to the first embodiment of the present invention. The Bluetooth audio broadcasting system 100 includes a plurality of Bluetooth member devices capable of receiving audio broadcasting, and an audio broadcasting device 150 for broadcasting audio data. The audio broadcasting device 150 is configured to adopt the low-power Bluetooth audio (Bluetooth LE Audio, BLE Audio) technology (hereinafter referred to as BLE audio technology) specified by the Bluetooth core specification version 5.2 or a newer version to broadcast audio of various contents Data, for example, flight information in airports, shift reminder notifications in train stations or high-speed ...
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The invention relates to a Bluetooth audio broadcasting system and a multi-member Bluetooth device. The present specification provides a Bluetooth audio broadcasting system, comprising: an audio broadcasting device capable of broadcasting a low-power Bluetooth audio packet; the first Bluetooth member device can analyze the low-power-consumption Bluetooth audio packet to obtain preset audio data and control a first audio playing circuit to play the preset audio data; and the second Bluetooth member device can analyze the low-power-consumption Bluetooth audio packet to obtain preset audio data and control a second audio playing circuit to play the preset audio data. The audio broadcasting device also transmits a volume adjustment instruction to the first Bluetooth member device and the second Bluetooth member device after the first Bluetooth member device sends a volume adjustment request. The first Bluetooth member device can adjust the volume of the first audio playing circuit according to the volume adjustment instruction. The second Bluetooth member device can adjust the volume of the second audio playing circuit according to the volume adjustment instruction.
Description
technical field [0001] The present invention relates to bluetooth technology, in particular to a bluetooth audio broadcast system and a related multi-member bluetooth device which supports low-power bluetooth (Bluetooth Low Energy, BLE) audio broadcast operation and can adjust the volume synchronously. Background technique [0002] The Bluetooth technology is divided into two categories, one is the Bluetooth traditional (Classic Bluetooth / LegacyBluetooth) technology, and the other is the Bluetooth Low Energy (BLE) technology. BLE technology and Bluetooth legacy technology are not compatible (or not completely compatible) with each other, but the two technologies can coexist on the same Bluetooth device or the same Bluetooth chip. In other words, a single Bluetooth device or a single Bluetooth chip can be designed to support both BLE technology and Bluetooth legacy technology, or it can be designed to support only one of the Bluetooth communication standards. [0003] The ne...
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IPC IPC(8): G08C17/02H04W4/80H04W4/06G10L21/0316G10L15/22H04R1/10
CPCG08C17/02H04W4/80H04W4/06G10L21/0316G10L15/22H04R1/1041G10L2015/223H04R2201/10
Inventor 刘又瑄林勇杰顾青魏碧陈奕铮
Owner REALTEK SEMICON CORP
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