Methods and units are shown for supporting a switching from a first coding scheme to a Modified Discrete Cosine Transform (MDCT) based coding scheme calculating a forward or inverse MDCT with a window (h(n)) of a first type for a respective coding frame, which satisfies constraints of perfect reconstruction....http://www.google.fr/patents/US7876966?utm_source=gb-gplus-shareBrevet US7876966 - Switching between coding schemes
