| 摘要 |
<p>A method of parametrically encoding a transient audio signal, including the steps of: (a) determining a set V of the largest N frequency components of the transient audio signal, where N is a predetermined number; (b) determining an approximate envelope of the transient audio signal; and (c) determining a predetermined number P of samples W of the approximate envelope for generating a spline approximation of the approximate envelope; whereby a parametric representation of the transient audio signal is given by parameters including V, N, P and W, such that a decoder receiving the parametric representation can reproduce a received approximation of the transient audio signal. <IMAGE></p> |
