Patent ID: 8615390

Claim:
A method for transform decoding of a signal represented by a succession of frames which were coded by using at least two types of weighting windows, wherein said at least two types of weighting windows have different respective lengths, said different respective lengths being either a short window or a long window; wherein each individual frame in said succession of frames is coded using at least one of said at least two types of weighting windows; and wherein upon reception of a frame when changing from a long window to a short window: samples are determined, at a transform decoder, from a decoding applying a type of short synthesis window to a given frame which was coded by using a short analysis window, and complementary samples are obtained by: decoding only a portion of a frame preceding the given frame and which was coded by using a type of long analysis window, weighting samples of the given frame and samples of the preceding frame using at least two weighted terms involving weighting functions tabulated and stored in the memory of a decoder; wherein said method is performed by a decoder device.