The novel approach to speaker adaptation within speech recognition system basing on late clustering of prototype speakers is presented. For a new speaker the speaker prototype is created dynamically on the basis of selected remembered prototypes that are similar enough to the new one. The training utterances are prepared in an optimized way to decrease training duration without negative influen...

A novel system that efficiently integrates two types of neural networks for reliably performing isolated word recognition is described. The recognition system comprises of a feature extractor that includes a Self Organizing Map for an optimal tailoring of trajectory representations of words in reduced dimension feature spaces. Experimental results indicate that such lower dimensional trajectori...

Deficits in social cognition including facial affect recognition and their detrimental effects on functional outcome are well established in schizophrenia. Structured training can have substantial effects on social cognitive measures including facial affect recognition. Elucidating training effects on cortical mechanisms involved in facial affect recognition may identify causes of dysfunctional...

The use of discriminative training methods in speech recognition is a promising approach. The minimum classification error (MCE) based discriminative methods have been extensively studied and successfully applied to speech recognition [1][2][3], speaker recognition [4], and utterance verification [5][6]. Our goal is to modify the embedded string model based MCE algorithm to train a large number...

Several adaptation approaches have been proposed in an e ort to improve the speech recognition performance in mismatched conditions. However, the application of these approaches had been mostly constrained to the speaker or channel adaptation tasks. In this paper, we rst investigate the e ect of mismatched dialects between training and testing speakers in an Automatic Speech Recognition (ASR) s...

Two intervention procedures for the rehabilitation of elderly adults with hearing impairment were evaluated: analytic auditory training and active listening training. Seventy-eight older adults with hearing loss served as subjects. Twenty-six subjects received no training, 26 received analytic training, and 26 received active listening training. The effectiveness of the audiologic rehabilitatio...

RASR is the open source version of the well-proven speech recognition toolkit developed and used at RWTH Aachen University. The current version of the package includes state of the art speech recognition technology for acoustic model training and decoding. Speaker adaptation, speaker adaptive training, unsupervised training, discriminative training, lattice processing tools, flexible signal ana...

Describing memory for a nonverbal perceptual stimulus can impair recognition. This verbal overshadowing effect may occur when perceptual expertise exceeds verbal expertise, but previous evidence for this hypothesis has been strictly correlational. We conducted two experiments, exploring the relation between expertise and verbal overshadowing by manipulating perceptual and conceptual knowledge. ...