What does lpc mean?

LPC (Linear Predictive Coding) is a very important coding method. In principle, LPC generates the parameters of channel excitation and transfer function by analyzing speech waveform, and the coding of speech waveform is actually converted into the coding of these parameters, which greatly reduces the amount of speech data.

LPC is an acronym or abbreviation defined in a simple language. In addition to social networking software such as VK, Instagram, Whatsapp and Snapchat, this page also explains the usage of LPC in messaging and chat forums.

At the receiving end, the parameters obtained by LPC analysis are used to reconstruct speech by speech synthesizer. The synthesizer is actually a discrete time-varying linear filter, which represents the model of the vocal generation system. Time-varying linear filters are used as predictors and synthesizers.

When analyzing speech waveform, it is mainly used as a predictor, and when synthesizing speech, it is used as a speech generation model. With the change of speech waveform, the parameters and excitation conditions of the model periodically adapt to the new requirements.