Evaluation of an Artificial Speech Bandwidth Extension Method in Three Languages

  title={Evaluation of an Artificial Speech Bandwidth Extension Method in Three Languages},
  author={Hannu Pulakka and Laura Laaksonen and Martti Vainio and Jouni Pohjalainen and Paavo Alku},
  journal={IEEE Transactions on Audio, Speech, and Language Processing},
Quality and intelligibility of narrowband telephone speech can be improved by artificial bandwidth extension (ABE), which extends the speech bandwidth using only information available in the narrowband speech signal. This paper reports a three-language evaluation of an ABE method that has recently been launched in several of Nokia's mobile telephone models. The method extends the speech bandwidth to frequencies above the telephone band by first utilizing spectral folding and then modifying the… CONTINUE READING
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Enhancement of bandlimited speech signals: Algorithms and theoretical bounds

  • P. Jax
  • Ph.D. dissertation, Rheinisch-Westfalische…
  • 2002
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