Patent ID: 7318025

Claim:
A method for calculating an amplification factor for co-determining a volume for a speech signal transmitted in encoded form, the amplification factor being transmitted and used by a decoder to reconstruct the speech signal, the method comprising the steps of: dividing the speech signal into a plurality of short temporal signal segments; encoding and transmitting each signal segment separately from the other signal segments; calculating the amplification factor for each signal segment by minimizing a deviation value E(g_opt2), wherein E ( g _opt2)=(1 −a )* f 1 ( g _opt2)+ a*f 2 ( g _opt2) wherein g_opt2 is an amplification factory, f 1 represents waveform matching, f 2 represents energy matching, and a is a weighting factor; and taking into account a stationarity and a periodicity of the encoded speech signal so as to determine the weighting factor a.