The present invention relates to a method for a service provider to distribute an audio signal to a listener. Before delivering the audio signal to the listener, the audio impression of the audio signal is personalized to the listener. The personalizing could e.g. be performed by filtering the audio signal using a set of head related transfer functions (HRTFs) defined by parameters being specific for the listener. This is for minimizing the interest of performing illegal copying of the audio signal. The invention further relates to a method of playing back a distributed audio signal and a playback device for playing back a distributed audio signal, where the personalization is detected and used as a watermark, which is identified and interpreted before playing back the distributed audio.
申请公布号
WO03086007(A2)
申请公布日期
2003.10.16
申请号
WO2003IB01102
申请日期
2003.03.20
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;AARTS, RONALDUS, M.;SCHOBBEN, DANIEL, W., E.;VAN LUIJT, BALTHASAR, A., G.
发明人
AARTS, RONALDUS, M.;SCHOBBEN, DANIEL, W., E.;VAN LUIJT, BALTHASAR, A., G.