Interpreting the need of high quality wideband speech coding some standardization events have been conducted. There are various methods and standard for speech coding. these paper present a new technique of speech coding. here interpretation is done with the help of gamma tone filter bank. The o/p of the system is analyzed and process to get the respective train of pulses. the positioning and a...

In this paper, we discuss the split band code-excited linear prediction (SB-CELP) speech coder which employs an iterative version of the harmonic sinusoidal coding algorithm to encode the periodic contents of speech signal. Speech spectrum is split into two frequency regions of harmonic and random components and a reliable fundamental frequency is estimated for the harmonic region using both sp...

Pre-assumption for low bit rate speech coding is that pitch evolves smoothly and pitch cycles are highly correlated for voiced speech. Due to non stationary characteristics of speech signal, this assumption is sometimes inaccurate and therefore the performance of speech coder is affected. In this paper, low correlated pitch cycles are specified and then modified using target correlation concept...