A playback method based on parallel speakers, mobile terminal and readable storage medium

Abstract

The invention discloses a parallel-loudspeaker-based playing method, a mobile terminal and a computer-readable storage medium. The mobile terminal is composed of at least two loudspeakers connected inparallel. The method comprises: a preset excitation source is provided to the at least two loudspeakers and voltages of the at least two loudspeakers are detected, wherein the preset excitation source is one enabling the sum of output powers of the at least two loudspeakers not to be larger than P / N, the P expresses a maximum output power sum of the at least two loudspeakers and the N expresses the number of parallel loudspeakers; a voltage dropping range of the voltages of the at least two loudspeakers is determined; and if the voltages of the at least two loudspeakers fall into a first voltage range, an audio power amplifier circuit is controlled to output audio signals with the power not larger than P / N to the at least two loudspeakers. According to the method, when the at least two loudspeakers are detected to be in an abnormal state, the power of audio signals outputted to the at least two loudspeakers are reduced, so that damages caused by overloading of the loudspeakers are prevented.

Description

technical field [0001] The invention relates to the technical field of audio playback, in particular to a playback method based on parallel speakers, a mobile terminal and a readable storage medium. Background technique [0002] With the continuous development of electronic technology, mobile terminals (such as smart phones, tablet computers, etc.) have more and more powerful functions, and play an indispensable role in people's life or work. People also have higher and higher requirements on the sound quality of mobile terminals. In order to meet the loudness and sound quality requirements, the output power of the speaker of the mobile terminal is required to be higher (for example, the output power of the speaker of the mobile terminal is required to be more than 3W). [0003] Since the loudspeaker with higher output power is larger in size, it cannot meet the thin and light design requirements of mobile terminals. Therefore, a plurality of loudspeakers with lower output p...

AI Technical Summary

Problems solved by technology

However, when multiple speakers are connected in parallel, if one of the speakers is broken due to damage, the power of the overall speaker will be reduced, while the actual audio power amplifier will still output signals according to the original output power, which will easily cause the speaker to be overloaded and damaged.

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