Blar i NTNU Open på forfatter "Pettersen, Svein Gunnar"

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    • Bandwidth Extension of Telephony Speech 

      Johansen, Martin Etnestad (Master thesis, 2009)
      The public switched telephone network (PSTN) restricts the acoustic bandwidth of telephonyspeech to less than 4 kHz. For compatibility with analog telephone networks, a 0.3 − 3.4 kHz passband is common. This bandwidth ...

    • Robust Speech Recognition in the Presence of Additive Noise 

      Pettersen, Svein Gunnar (Doctoral Theses at NTNU, 1503-8181; 2009:14, Doctoral thesis, 2009)
      It is well known that additive noise can cause a significant decrease in performance for an automatic speech recognition (ASR) system. For an ASR system to maintain an acceptable level of performance in noisy conditions, ...