Laura E. Ray,Jason A. Solbeck,Christopher M. Pearson
申请号：
US13790254
公开号：
US09577596B2
申请日:
2013.03.08
申请国别(地区):
US
年份:
2017
代理人:
摘要：
The invention is directed to synthesizing a personalized audio equalization filter based on an individuals hearing profile when listening to audio signals using a preferred electronic means of transduction and production of the audio signals through headphones, earphones, or loudspeakers and is presented in two steps. In the first step, the deviation of the listeners hearing profile, when the preferred listening device is donned, is measured and recorded relative to predetermined equal-loudness contours (e.g., ISO standard equal-loudness contours). The hearing profile is used to compute an equalization filter such that when the audio signal to be reproduced is played through the filter, the equal-loudness contour for a specified phon level is restored. Thus, the invention compensates for deviations of the users listening device, the users own hearing profile from a standard hearing profile that represents natural hearing, and other factors. The equalization filter can be adapted to any phon level through adaptation of filter coefficients as a function of the volume of the listening level.
