Patent ID: 7209565
Filing Date: 2007-04-24
Classification: G10L,G11B,H04B,H04H

Abstract:
1. A decoder for decoding an encoded digital signal, wherein the encoded digital signal represents a wideband digital audio signal having a sampling frequency F s , and comprises consecutive frames, each frame comprising a plurality of information packets, each information packet comprising N bits, N being larger than 1, a frame comprising at least a first frame portion including synchronization information, and wherein the decoder comprises: an input for receiving the encoded digital signal; means for converting the encoded digital signal into a replica of the wideband audio digital signal; and an output for supplying the replica of the wideband digital audio signal, wherein said means for converting converts a signal having a number of information packets in one frame, determined according to the formula P=BR/N×n s /F s , where BR is the bit-rate of the encoded digital signal and n s is the number of samples of the wideband digital audio signal having corresponding information in the encoded digital signal included in one frame of the encoded digital signal, and if P is an integer, the number of information packets in one frame is P, and if P is not an integer, the number of information packets in a number v of the frames is P′, where P′ is the highest integer having a value less than P, and the number of information packets in a number w of the other frames is equal to P′+1, the numbers v and w being selected such that the average frame rate of the encoded digital signal is substantially equal to F s /n s .