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  • 1.
    Ranjbar, Parivash
    et al.
    Örebro University, School of Science and Technology.
    Borg, Erik
    Örebro University, School of Health and Medical Sciences.
    Philipson, Lennart
    Stranneby, Dag
    Örebro University, School of Science and Technology.
    Auditive identification of signal-processed environmental sounds: monitoring the environment2008In: International Journal of Audiology, ISSN 1499-2027, E-ISSN 1708-8186, Vol. 47, no 12, p. 724-736Article in journal (Refereed)
    Abstract [en]

    The goal of the present study was to compare six transposing signal-processing algorithms based on different principles (Fourier-based and modulation based), and to choose the algorithm that best enables identification of environmental sounds, i.e. improves the ability to monitor events in the surroundings. Ten children (12-15 years) and 10 adults (21-33 years) with normal hearing listened to 45 representative environmental (events) sounds processed using the six algorithms, and identified them in three different listening experiments involving an increasing degree of experience. The sounds were selected based on their importance for normal hearing and deaf-blind subjects. Results showed that the algorithm based on transposition of 1/3 octaves (fixed frequencies) with large bandwidth was better (p<0.015) than algorithms based on modulation. There was also a significant effect of experience (p<0.001). Adults were significantly (p<0.05) better than children for two algorithms. No clear gender difference was observed. It is concluded that the algorithm based on transposition with large bandwidth and fixed frequencies is the most promising for development of hearing aids to monitor environmental sounds.

  • 2.
    Ranjbar, Parivash
    et al.
    Örebro University, School of Science and Technology.
    Stranneby, Dag
    Örebro University, School of Science and Technology.
    Akner-Koler, Cheryl
    University College of Arts, Crafts and Design in Sweden (Konstfack), Stockholm,Sweden .
    Borg, Erik
    Örebro University, School of Health and Medical Sciences, Örebro University, Sweden.
    Monitor: a vibrotactile aid to improve environmental perception of persons with severe hearing impairment/deafblindness2012In: TeMA Hörsel, 2012, 2012Conference paper (Other academic)
  • 3.
    Stranneby, Dag
    et al.
    Örebro University, School of Science and Technology.
    Ranjbar, Parivash
    Örebro University, School of Science and Technology.
    Akner-Koler, Cheryl
    Örebro University, School of Hospitality, Culinary Arts & Meal Science. University College of Arts, Crafts and Design in Sweden (Konstfack), Stockholm, Sweden.
    Borg, Erik
    Örebro University, School of Science and Technology.
    Ready-Ride: a positioning and communication system to increase the autonomy of riders with visual impairment/deafblindness2012Conference paper (Other academic)
  • 4.
    Stranneby, Dag
    et al.
    Örebro University, School of Science and Technology.
    Ranjbar, Parivash
    Örebro University, School of Science and Technology.
    Montgomery Cederheim, A.
    Audiological Research Centre, Örebro University, Örebro, Sweden.
    RantanenPeterson, M.
    Audiological Research Centre, Örebro University, Örebro, Sweden.
    Akner-Koler, Cheryl
    Audiological Research Centre, Örebro University, Örebro, Sweden.
    Borg, Erik
    Audiological Research Centre, Örebro University, Örebro, Sweden.
    Ready-Ride Increase the Autonomy of Riders with Deafblindness2011Conference paper (Other academic)
1 - 4 of 4
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