codebook algebraic with amplitudes as a function of the selected pulse signal for rapid encoding signal

摘要

method for carrying out a search in a codenbook for the purpose of encoding a sound signal.said codenbook is a set of combinations of pulses and each combination of pulses defining a plurality of different positions and including pulses assigned to respective posizioni combination.the method includes the steps of: - selection by said codenbook a subset of combinations of pulses as a function of the acoustic signal; and the research only in said subset of combdestinations of pulses in order to encode the sound signal; the complexity of research coming in this way reduced, in the operation.as it is for only a subset of combinations of pulses of codebook device adopting party the method referred to above.the system includes the device adopting party the method referred to above.