Resumen

We study declarative and interrogative intonation in a speech corpus produced by bilingual
women and men from San Antonio de Texas with Mexican ancestry. The work focuses on
F0 and duration parameters in order to define the tonal invariants and variants and the
duration structures, as well as the relationship between both parameters. Regarding F0,
results reveal the presence of fundamental characteristics pertaining to Mexican intonation,
particularly in interrogatives, where their end is ascendant as it has been described for
Mexican and Spanish. Regarding duration, we have been able to generate different duration
structures in the syntagmas we have compared and the different accents over the long
base (L) and the brief base (B).