PROCESS OF CODING OF PROSODY FOR CONVERSATION AT LOW DECIBEL LEVELS

摘要

A speech coding-decoding method using a very low rate encoder comprising a learning step for identifying "representatives" of the speech signal and a coding step for segmenting the speech signal and determining the "best representative" Associated with each recognized segment. The method comprises at least one coding-decoding step of at least one parameter of the prosody of the recognized segments, such as the energy and / or the pitch and / or the voicing and / or the length of the segments, using a prosody information of the "best representatives". Application for rates lower than 400 bits per second.