Acoustical properties Elongation 1 First order differences 1 Hidden Markov models 1 Malay languages 1 Markov processes 1 Multi-layer perceptron neural networks 1 Network layers 1 Speech recognition 1 Spontaneous speech 1 Spontaneous speech recognition 1 Voice activity detection 1 elongations 1 filled pause 1 multi-layer perceptron neural network 1 voice activity detection 1