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ASR Phonetic
Learning and Mixed Acoustic Model
One of today's vocal applications problems
is that customers formulate their requests with
great variability. Since it is difficult to
reliably predict a priori the user formulations,
Loquendo developed a software package for detecting,
from field data, user formulations that were
not foreseen by the application designers.
The main aims of this tool are the individuation
of uncovered frequent formulations and the research
of additional pronunciation variants for the
foreseen formulations. This is particularly
useful in case of non-native speakers and regional
accents.
What is more, Loquendo has developed a mixed
acoustic ASR model for Castilian Spanish and
Catalan. The application developer must specify
inside a grammar where words have be catalogued
only as Castilian or as Catalan.
The accuracy performance is similar to the performance
of the monolingual acoustic models.
This permits in bilingual countries to provide
efficient speech services, managing both languages
at the same time.
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