Frequency response consistency calibration method and electronic device

An electronic device, wherein the electronic device comprises:

• one or more processors;
• a memory;
• and
• an equalizer calibration circuit;
• the memory stores one or more computer programs, the one or more computer programs comprise instructions, and when the instructions are executed by the one or more processors, the electronic device is enabled to perform the following operations:
• playing, by the electronic device, a test audio signal;
• and
• storing, by the electronic device, a calibration parameter, wherein the calibration parameter is a running parameter of the equalizer calibration circuit;
• the calibration parameter is determined based on a frequency response of a first audio signal and a standard frequency response of the test audio signal;
• the first audio signal is obtained by a second device by acquiring the test audio signal played by the electronic device;
• and the calibration parameter is used to adjust, through the equalizer calibration circuit when the electronic device plays a second audio signal, a frequency response of the second audio signal played by the electronic device, and
• wherein the equalizer calibration circuit comprises a plurality of sub-band filters;
• the calibration parameter is parameters of the plurality of sub-band filters;
• and the calibration parameter comprises a quantity of to-be-calibrated frequency bands, a filter type corresponding to each to-be-calibrated frequency band, a central frequency of a filter corresponding to each to-be-calibrated frequency band, and a frequency response gain corresponding to each to-be-calibrated frequency band, and wherein the operations further comprise:
• determining, by the electronic device based on the frequency response of the first audio signal and the standard frequency response of the test audio signal, a frequency point required to be calibrated, a quantity of frequency points required to be calibrated, and a frequency response gain corresponding to the frequency point required to be calibrated;
• and
• determining, by the electronic device, the calibration parameter based on the frequency point required to be calibrated, the quantity of frequency points required to be calibrated, and the frequency response gain corresponding to the frequency point required to be calibrated.

A non-transitory computer-readable storage medium, wherein the computer-readable storage medium stores instructions;

• and when the instructions run on an electronic device, the electronic device is enabled to perform the following operations:
• playing, by the electronic device, a test audio signal;
• and
• storing, by the electronic device, a calibration parameter, wherein the calibration parameter is a running parameter of an equalizer calibration circuit;
• the calibration parameter is determined based on a frequency response of a first audio signal and a standard frequency response of the test audio signal;
• the first audio signal is obtained by a second device by acquiring the test audio signal played by the electronic device;
• and the calibration parameter is used to adjust, through the equalizer calibration circuit when the electronic device plays a second audio signal, a frequency response of the second audio signal played by the electronic device, and
• wherein the equalizer calibration circuit comprises a plurality of sub-band filters;
• the calibration parameter is parameters of the plurality of sub-band filters;
• and the calibration parameter comprises a quantity of to-be-calibrated frequency bands, a filter type corresponding to each to-be-calibrated frequency band, a central frequency of a filter corresponding to each to-be-calibrated frequency band, and a frequency response gain corresponding to each to-be-calibrated frequency band, and wherein the operations further comprise:
• determining, by the electronic device based on the frequency response of the first audio signal and the standard frequency response of the test audio signal, a frequency point required to be calibrated, a quantity of frequency points required to be calibrated, and a frequency response gain corresponding to the frequency point required to be calibrated;
• and
• determining, by the electronic device, the calibration parameter based on the frequency point required to be calibrated, the quantity of frequency points required to be calibrated, and the frequency response gain corresponding to the frequency point required to be calibrated.