Noise control method and apparatus, chip, and vehicle

A noise control apparatus, comprising:

• a first processing unit and a second processing unit, wherein the first processing unit and the second processing unit are connected to each other through an inter-core communication link;
• the first processing unit is configured for acquiring at least one first reference acoustic signal and at least one error acoustic signal that correspond to a first noise reduction cycle, wherein the at least one first reference acoustic signal is a noise signal acquired from at least one first position on a vehicle, and the at least one error acoustic signal is a noise residual signal acquired from at least one second position in a cockpit of the vehicle;
• the first processing unit is configured for transmitting the at least one first reference acoustic signal and the at least one error acoustic signal to the second processing unit;
• the second processing unit is configured for updating filter parameters based on the at least one first reference acoustic signal and the at least one error acoustic signal to obtain first filter parameters, and returning the first filter parameters to the first processing unit;
• and
• the first processing unit is configured for performing, based on the first filter parameters, filtering processing on at least one second reference acoustic signal corresponding to a second noise reduction cycle to obtain at least one noise control signal, and correspondingly transmitting the at least one noise control signal to at least one sound source corresponding to the at least one second position, so that the at least one sound source plays the corresponding noise control signal, wherein the second noise reduction cycle is a noise reduction cycle immediately after the first noise reduction cycle.

A chip, comprising a first processing unit and a second processing unit, wherein the first processing unit and the second unit are connected to each other through an inter-core communication link;

• the first processing unit is configured for acquiring at least one first reference acoustic signal and at least one error acoustic signal that correspond to a first noise reduction cycle, wherein the at least one first reference acoustic signal is a noise signal acquired from at least one first position on a vehicle, and the at least one error acoustic signal is a noise residual signal acquired from at least one second position in a cockpit of the vehicle;
• the first processing unit is configured for transmitting the at least one first reference acoustic signal and the at least one error acoustic signal to the second processing unit;
• the second processing unit is configured for updating filter parameters based on the at least one first reference acoustic signal and the at least one error acoustic signal to obtain first filter parameters, and returning the first filter parameters to the first processing unit;
• and
• the first processing unit is configured for performing, based on the first filter parameters, filtering processing on at least one second reference acoustic signal corresponding to a second noise reduction cycle to obtain at least one noise control signal, and correspondingly transmitting the at least one noise control signal to at least one sound source corresponding to the at least one second position, so that the at least one sound source plays the corresponding noise control signal, the second noise reduction cycle being a noise reduction cycle immediately after the first noise reduction cycle.