Patent ID: 9143858
Filing Date: 2015-09-22
Classification: G10K,H04R

Abstract:
1. A method for providing active noise cancellation for headphones worn by a user, comprising: when the headphones are worn by the user in a current quiet environment, determining a plant model for each ear cup of the headphones for the user based on at least one reference audio signal provided by at least one speaker within each ear cup and an audio signal captured at the same time by a microphone located within each ear cup; when the headphones are worn by the user in a current noise environment, determining at least one operating parameter for each controller that corresponds to each ear cup based on at least each ear cup's corresponding plant model and at least one other audio signal from the current noise environment which is captured at the same time by at least one microphone that corresponds to each ear cup; updating at least one operation of each controller for each ear cup based on the at least one determined operating parameter for each controller; and employing the updated controllers to provide active noise cancellation when the headphones are worn by at least the user.