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].