Speech compression using pitch synchronous interpolation
Rakesh Taori, R.J. Sluijter, E. Kathmann · 2002
This paper presents a new time-domain algorithm for compressing speech signals. Using a novel tool which we will refer to as time weighted average (TWA), a periodically extendable pitch cycle is extracted from the voiced regions in the speech signal. This procedure is carried out every x/sup th/ pitch period. The discarded x-1 pitch periods are recovered using pitch synchronous interpolation (PSI). The computational complexity of the resulting decoder is surprisingly modest and shows reasonable potential of implementation on hardware as primitive as the Intel 8088 /spl mu/-processor. Simulation results show that the reconstruction quality is comparable to G.721.