Method and apparatus for improving sound quality of speaker

An electronic device, comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor to store instructions, which when executed by the at least one processor, cause the at least one processor to perform operations, the operations comprising:
• performing frequency division on an input signal of a speaker to obtain a first low-frequency input signal and a first high-frequency input signal, wherein the input signal of the speaker is a time domain signal, the first low-frequency input signal comprises a signal having a frequency lower than a first preset frequency in the input signal, and the first high-frequency input signal comprises a signal having a frequency higher than the first preset frequency in the input signal;
• performing transient detection on the first low-frequency input signal to determine whether the first low-frequency input signal is a transient signal;
• in response to determining that the first low-frequency input signal is the transient signal, performing signal envelope modulation on the first low-frequency input signal to obtain a second low-frequency input signal, wherein a startup voltage of the second low-frequency input signal is higher than a startup voltage of the first low-frequency input signal, and loudness of the second low-frequency input signal is greater than loudness of the first low-frequency input signal;
• and
• determining an output signal of the speaker based on the second low-frequency input signal and the first high-frequency input signal.

A non-transitory computer-readable storage medium having a computer program stored therein, which when executed by a processor, causes the processor to perform operations, the operations comprising:

• performing frequency division on an input signal of a speaker to obtain a first low-frequency input signal and a first high-frequency input signal, wherein the input signal of the speaker is a time domain signal, the first low-frequency input signal comprises a signal having a frequency lower than a first preset frequency in the input signal, and the first high-frequency input signal comprises a signal having a frequency higher than the first preset frequency in the input signal;
• performing transient detection on the first low-frequency input signal to determine whether the first low-frequency input signal is a transient signal;
• in response to determining that the first low-frequency input signal is the transient signal, performing signal envelope modulation on the first low-frequency input signal to obtain a second low-frequency input signal, wherein a startup voltage of the second low-frequency input signal is higher than a startup voltage of the first low-frequency input signal, and loudness of the second low-frequency input signal is greater than loudness of the first low-frequency input signal;
• and
• determining an output signal of the speaker based on the second low-frequency input signal and the first high-frequency input signal.