Headphone response optimization

摘要

Optimized sound waves presented to the listener by headphones, notwithstanding differences in ear geometry and headphone positioning. A test signal causes an acoustic sensor to receive sound waves actually formed in the listener's ear cavity. A response from the sensor is compared with an expected ear cavity transfer function, from which desired adjustments to the audio signal are determined. The audio signal might be received from an application program, calibrated by an interface software element, and adjusted thereby, before forwarding to the headphones. Calibration might be performed from when the headphones are positioned, or dynamically in response to changes in the transfer function.

主权项

1. A method, including the steps of:
emitting a test sound wave from a headphone into an ear of a listener; receiving, by a sensor, a response to said test sound wave; comparing said response to an expected response to said test sound wave, wherein the expected response is associated with a standard ear geometry; determining differences between said response and said expected response; and adjusting an input audio signal to the headphone in response to said differences, wherein the input audio signal is corrected to account for a result of comparing said response to the expected response associated with the standard ear geometry.