Improvements in children´s speech recognition performance

There are several reasons why conventional speech recognition systems modeled on adult data fail to perform satisfactorily on children´s speech input. For instance, children´s vocal characteristics differ significantly from those of adults. In addition, their choices of vocabulary and sentence construction modalities usually do not conform to adult patterns. We describe comparative studies demonstrating the performance gain realized by adopting to children´s acoustic and language model data to construct a children´s speech recognition system