Patent ID: 7796748
Filing Date: 2010-09-14
Classification: G10L,H04M

Abstract:
1. A telecommunication terminal comprising: a receiver configured to receive an analog speech signal representing speech of a user of the terminal; an analog to digital converter configured to convert the analog speech signal into a digital signal; a coding and extracting unit configured to extract a plurality of reconstruction parameters from the digital signal, the reconstruction parameters including log area ratio coefficients, a fundamental frequency and a pulse excitation signal; an interface configured to receive an instruction to modify at least one of the reconstruction parameters and, responsive to receiving the instruction, to control a source coder and modifying unit to modify at least one of the reconstruction parameters by a particular amount; and a transmitter configured to transmit the digital signal including the modified reconstruction parameters external to the telecommunication terminal so that a voice associated with the transmitted digital signal has at least one characteristic different from the speech represented by the analog speech signal.