Spontaneous speech Acoustical properties 1 Alzheimers disease 1 Cognitive impairment 1 Computational linguistics 1 Elongation 1 First order differences 1 Healthy controls 1 Hidden Markov models 1 Hungarians 1 Linguistic features 1 Malay languages 1 Markov processes 1 Multi-layer perceptron neural networks 1 Network layers 1 Neurodegenerative diseases 1 Patient's suffering 1 Rich features 1 Semantics 1 Significance levels 1 Speech recognition 1 Speech transcripts 1 Spontaneous speech recognition 1 Voice activity detection 1 elongations 1 filled pause 1 multi-layer perceptron neural network 1 voice activity detection 1