Aac Technologies (nanjing) Co., Ltd.

Hongling Fu

Lijian Ye

Ruizhi Lan

Yuheng Jiang

Kejia Liu

A coaxial speaker protection method, a coaxial speaker protection system, a coaxial speaker protection device, and a coaxial speaker protector are provided. The coaxial speaker protection method includes modeling a temperature of a tweeter to obtain a tweeter voltage-temperature transfer function, modeling a temperature and an amplitude of a woofer to obtain a woofer voltage-amplitude-temperature transfer function, modeling a coaxial device having the tweeter and the woofer to obtain a thermal conduction function of the coaxial device, predicting a temperature at a next moment of the tweeter according to temperature information fed back by a current at a previous moment of the tweeter, etc. The tweeter and the woofer are protected through a feedforward manner, so that sound quality of a coaxial speaker is improved.

Coaxial speaker protection method, coaxial speaker protection system, coaxial speaker protection device, and coaxial speaker protector

A coaxial speaker protection method, a coaxial speaker protection system, a coaxial speaker protection device, and a coaxial speaker protector are provided. The coaxial speaker protection method includes modeling a temperature of a tweeter to obtain a tweeter voltage-temperature transfer function, modeling a temperature and an amplitude of a woofer to obtain a woofer voltage-amplitude-temperature transfer function, modeling a coaxial device having the tweeter and the woofer to obtain a thermal conduction function of the coaxial device, calculating a current temperature of the tweeter according to a current voltage of the tweeter, calculating a current temperature of the woofer according to a current voltage of the woofer, etc. The tweeter and the woofer are protected through a feedforward manner, so that sound quality of a coaxial speaker is improved.

A speaker temperature protection method, a speaker temperature protection device, an electronic device, and a computer-readable storage medium are provided. The speaker temperature protection method includes creating a target transfer function based on a first measured temperature of the speaker and a first measured fusion voltage relative to the combination device, obtaining a first predicted temperature of the speaker based on the target transfer function, and determining a target gain according to the first predicted temperature of the speaker and a first fusion power relative to the combination device, and performing gain processing on an original audio signal input to the combination device based on the target gain, so as to provide temperature protection for the speaker. In this way, a temperature of the speaker is kept below a maximum allowable temperature and audio distortion is reduced.

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Nanjing, China

Hongling Fu