The KlattGrid speech synthesizer

We present a new speech synthesizer class, named KlattGrid,
for the Praat program [3]. This synthesizer is based on the original
description of Klatt [1, 2]. New aspects of a KlattGrid
in comparison with other Klatt-type synthesizers are that a
KlattGrid
is not frame-based but time-based. You specify parameters
as a function of time with any precision you like.
has no limitations on the number of oral formants, nasal
formants, nasal antiformants, tracheal formants or tracheal
antiformants that can be defined.
has separate formants for the frication part.
allows varying the form of the glottal flow function as a
function of time.
allows for any number of formants and bandwidths to be
modified during the open phase of the glottis.
uses no beforehand quantization of amplitude parameters.
is fully integrated into the freely available speech analysis
program Praat [3].