Patent ID: 9130523
Filing Date: 2015-09-08
Classification: G10L,H03C,H03G,H04R

Abstract:
1. A method for processing an audio signal (i(t)) representing a processable representation of a first sound, the method comprising: receiving a first set (x(t)) of time-varying signals representing a first sound comprised in the audio signal (i(t)), the first set (x(t)) of time-varying signals comprising an amplitude modulation signal (a(t)), a carrier frequency signal (f modifying the first set (x(t)) of time-varying signals by modifying the amplitude of the FM index signal (h(t)), thereby providing a first modified set (x′(t)) of time-varying signals; and providing a first modulated audio signal (s(t)) which is dependent on the first modified set (x′(t)) of the time-varying signal, wherein the amplitude modulation signal a(t) controls time-varying amplitude of the modulated audio signal s(t), the carrier frequency signal f the pitch signal f the FM index signal h(t) controls time-varying spectral distribution of energy in the modulated audio signal s(t).