Combining the effect of glottal pulse, vocal tract,
and radiation yields a single all-pole transfer func-
tion as below:
Where,
‘G’ is the gain factor (Usually ignored to allow the
parameterization to be independent of the signal
intensity)
‘ai’ can be computed from speech signal
It is generally an all-pole model for most speech
sounds. By using the above transfer function we
can synthesize the speech samples as a linear com-
bination of the previous ‘p’ samples. Therefore, the
speech production model is often called the linear
prediction (LP) model, or the autoregressive model.
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