Speech synthesis using LPC
Ganesh Sawant, Amar Jeet Singh, Kishor Kadam, R. Mazarello, P. Dumane · 2010
Today, perhaps the biggest area of concern in the transmission of signals is bandwidth and its availability. Speech synthesis means the production of a speech signal by using stored speech parameters. These parameters are generated by a process known as speech analysis. A popular technique used for speech analysis and synthesis is linear predictive coding (LPC). In this technique, the previous n samples of a speech signal are used to predict the next sample of the signal. The prediction error, which is the error between such a reconstructed sample and the actual sample, is minimised. It is possible to synthesize a signal with a reduced bit rate and reasonably good quality. Such signals can be extremely useful for low bandwidth and therefore, low bit rate applications. In this paper, we examine the LPC technique in detail and propose a system for speech synthesis based on LPC. The aim is to synthesize speech of acceptable quality, with a sizeable reduction in bit rate.