Acoustic modeling with deep neural networks using raw time signal for LVCSR

  title={Acoustic modeling with deep neural networks using raw time signal for LVCSR},
  author={Zolt{\'a}n T{\"u}ske and Pavel Golik and Ralf Schl{\"u}ter and Hermann Ney},
In this paper we investigate how much feature extraction is required by a deep neural network (DNN) based acoustic model for automatic speech recognition (ASR). We decompose the feature extraction pipeline of a state-of-the-art ASR system step by step and evaluate acoustic models trained on standard MFCC features, critical band energies (CRBE), FFT magnitude spectrum and even on the raw time signal. The focus is put on raw time signal as input features, i.e. as much as zero feature extraction… CONTINUE READING
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