Bluetooth speaker base and control method and system thereof

Abstract

The present invention proposes a bluetooth speaker base and its control method and system, wherein the method includes: when a bluetooth speaker is placed on the bluetooth speaker base, collecting voice data and judging whether the voice data contains a wake-up word; if the wake-up word is included, then Control the Bluetooth speaker base to enter the wake-up recognition state, and compress the voice data according to the pre-negotiated compression factor; send the compressed voice signal to the mobile terminal through the pre-established first protocol, so that the mobile terminal, through the pre-established first protocol The second protocol sends audio data to the Bluetooth speaker for playback. Therefore, the Bluetooth two-way high-speed transmission protocol is used to realize the two-way high-speed transmission function of voice data between the mobile terminal and the Bluetooth speaker and its base. On the basis of not changing the structure of the Bluetooth speaker, the far-field voice interaction of the Bluetooth speaker can be greatly improved. experience.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a bluetooth speaker base and a control method and system thereof. Background technique [0002] In related technologies, existing Bluetooth speakers usually use standard Bluetooth 4.2 and BLE (Bluetooh Low Energy, Bluetooth low energy) technology for two-way communication. In the normal playback mode, most of them use the A2DP (Advanced Audio Distribution Profile, Bluetooth Audio Transmission Model Protocol) protocol for audio playback. At this time, the uplink can only use BLE to transmit data. In order to ensure the stability of Bluetooth playback, the BLE transmission rate is usually limited to 16kbps (where kbps is also called the bit rate, which refers to the transmission rate of digital signals). In the call state, most of them use the HFP (Hands-freeProfile, Bluetooth hands-free application protocol) protocol for communication, and the uplink and downlink transmiss...

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Problems solved by technology

[0003] However, the current problem is that since the total average data transmission bandwidth of the uplink and downlink is fixed, if the quality of downlink audio playback is guaranteed (that is, the downlink transmission rate is increased), the delay of voice interaction from wake-up to recognition will become longer. More than 2 seconds will affect the user experience; if the response speed of the voice interaction from wake-up to recognition is guaranteed so that the user is not aware (that is, the uplink transmission rate is increased), the quality of downlink audio playback needs to be greatly reduced; in addition, the HFP protocol is used to realize Bluetooth two-way During transmission, since the HFP protocol only supports the transmission of call data, and the uplink and downlink transmission rates are only 16kbps, it cannot meet the real-time requirements of voice interaction and will affect the quality of downlink content playback

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