The skipping technique: a simple and fast algorithm to find the pitch in CELP vocoder
Joohun Lee, Myung-Jin Bae, Souguil Ann, Hahyoung You · 2002
A fast pitch search algorithm using skipping technique is an efficient method of reducing the computation complexity of pitch search while maintaining a good speech quality in a CELP vocoder. The skipping technique also improves the computation reduction efficiency of conventional fast pitch search methods such as the delta search method by combining with them. Compared with the traditional full search method, the skipping technique combined with the conventional delta search method can reduce the computation time for a pitch search by over 60% with a quality degradation of only 0.57 dB.