Patent ID: 7386446

Claim:
A method for predictively coding an information signal including a sequence of information values by means of an adaptive prediction algorithm the prediction coefficients of which may be initialized and which is controllable by a speed parameter to operate with a first adaption speed and a first adaption precision in the case that the speed parameter has a first value and to operate with a second, compared to the first one, lower adaption speed and a second, compared to the first one, higher adaption precision in the case that the speed parameter has a second value, comprising the steps of: A) initializing the prediction coefficients; B) controlling the adaptive prediction algorithm to set the speed parameter to the first value; C) coding successive information values of the information signal by means of the adaptive prediction algorithm with the speed parameter set to the first value as long as a predetermined duration after step B) has not expired to code a first part of the information signal; D) after expiry of the predetermined duration after step B), controlling the adaptive prediction algorithm to set the speed parameter to the second value; and E) coding information values of the information signal following the information values coded in step C) by means of the adaptive prediction algorithm with the speed parameter set to the second value to code a second part of the information signal following the first part, the information signal being one of an audio signal and a video signal.