YUE LI a écrit : > As I know, both psychoacoustic model and quantization use scalefactor bands, > not equally divided subbands. > > So why Polyphase subband filtering is performed in the beginning of encoding?
It's just to keep a decoding step identical between layer II and layer III. From an engineernig point, it simply makes no sense. When this was decided, it made sense considering a financial/strategic point of view. Regards, -- Gabriel Bouvigne www.mp3-tech.org personal page: http://gabriel.mp3-tech.org _______________________________________________ mp3encoder mailing list mp3encoder@minnie.tuhs.org http://minnie.tuhs.org/mailman/listinfo/mp3encoder
