Patent ID: 8195463
Filing Date: 2012-06-05
Classification: G10L

Abstract:
1. A method for selecting synthesis units of a piece of information, the information being a speech segment to be encoded that can be decomposed into synthesis units for a considered information segment, said method comprising the steps: determining a mean fundamental frequency value F0 for the information segment considered, identifying a sub-set of the dictionary corresponding to the frequency F0, wherein said sub-set of the dictionary has N synthesis units, selecting a sub-set of P synthesis units in said N synthesis units of said identified sub-set of the dictionary, said sub-set of P synthesis units defined as being the closest units whose mean pitch values are the closest to the pitch value F0, the rest of the processing being done on the pitch profiles associated with said P units, with P inferior to N, P=2 applying one or more proximity criteria to the selected synthesis units to determine a synthesis unit representing the information segment.