Path-dependent kalman estimation of a cepstral bias

  title={Path-dependent kalman estimation of a cepstral bias},
  author={Lionel Delphin-Poulat and J{\'e}r{\^o}me Idier},
An acoustic mismatch between a given utterance and a model degrades the performance of the speech rec ognition process. We choose to model sp eech by Hidden Markov Models (HMMs) in the cepstrum domain and the mismatch by an additive bias. To track the variations of this bias, we explicitly model the way in which the bias can vary by a state equation. We… CONTINUE READING