Speech communication Speech recognition Accuracy Improvement Activity detection CIENCIAS DE LA SALUD Deep neural networks Dimensionality reduction ENSEÑANZA DE LA MEDICINA ENSEÑANZA PROFESIONAL EVALUACION EN SALUD Feature vectors Gaussian Mixture Model I-vectors In-depth analysis Language recognition Microphone data Microphones Neural network (nn) Posterior probability SALUD Speaker recognition Speaker recognition evaluations Speaker verification system Speech Speech data Spoken language recognition TECNICAS DE EVALUACION Telephone sets