Patent ID: 9620139
Date: 2017-04-11
CPC Classifications: G10L

Claim:
1. A method of coding a digital audio signal comprising use of a modified predictive filter, for coding at least one current block of a succession of consecutive blocks of data, and wherein the method comprises the steps of: inputting digital audio data comprising said digital audio signal; calculating a backward filter for a past block, wherein the past block precedes the current block, determining coefficients of a modifying filter, as a function of said digital audio signal in the current block, combining said coefficients of said modifying filter with coefficients of said backward filter so as to generate information for calculating the modified predictive filter, constructing said modified predictive filter using the information; generating an encoded current block by applying said modified predictive filter to said current block, and sending said encoded current block and the information for calculating the modified predictive filter over a telecommunication network.