Active noise control headphones

A system for active noise control (ANC), comprising, comprising:

• a memory storing code;
• and
• at least one processor coupled to the memory, and when the code is executed, the at least one processor is configured to:
• receive a mixed audio signal comprising a noise signal and an audio source signal based on an audio of interest played by a speaker;
• determine a current system parameter of the system based on the mixed audio signal at a first time point, wherein the current system parameter comprises a transfer function of the system;
• and
• determine a current parameter of a filter function module based on the current system parameter of the system and pre-tested data, wherein the pre-test data indicates a relationship between predetermined filter function module parameters and corresponding transfer functions.

A method for active noise control (ANC), comprising:

• playing, by a speaker of a headphone, an audio of interest based on a first audio signal;
• obtaining, by a microphone of the headphone, a mixed audio signal comprising a noise signal and a second audio signal based on the audio of interest played by the speaker;
• determining, by a processor of the headphone, a current system parameter of the headphone based on the mixed audio signal, wherein the current system parameter comprises a transfer function of the headphone;
• determining, by the processor, a current filter function parameter based on the current system parameter and pre-tested data, wherein the pre-test data indicates a relationship between predetermined filter function module parameters and corresponding transfer functions;
• adjusting, by the processor, a filter function module based on the current filter function parameter;
• and
• generating, by the processor, a noise-controlled audio signal to be played by the speaker based on the adjusted filter function module.