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N band FM demodulation to aid cochlear hearing impaired persons.
Linköping University, The Swedish Institute for Disability Research. Linköping University, Department of Behavioural Sciences and Learning. Linköping University, Faculty of Arts and Sciences. Eriksholm Research Centre, Oticon A/S, Snekkersten, Denmark.
2013 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

The invention relates to: A signal processing device comprising a signal processing unit for processing an electrical SPU-input signal comprising frequencies in the audible frequency range between a minimum frequency and a maximum frequency, and providing a processed SPU output signal. The invention further relates to its use and to a method of operating an audio processing device. The object of the present invention is to provide a scheme for improving a user's perception of an acoustic signal. The problem is solved in that an FM to AM transformation unit for transforming an FM2AM input signal originating from the SPU-input signal and comprising at least a part of the frequency range of the SPU-input signal from a frequency modulated signal to an amplitude modulated signal to provide an FM2AM output signal, which is used in the generation of the processed SPU output signal. This has the advantage of providing an improved perception by a hearing impaired user of an input sound.

Place, publisher, year, edition, pages
National Category
Social Sciences
URN: urn:nbn:se:liu:diva-110136OAI: diva2:743105
DK2184929 (T3) (2013-07-01)
Available from: 2014-09-03 Created: 2014-09-03 Last updated: 2014-09-03

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Lunner, Thomas
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The Swedish Institute for Disability ResearchDepartment of Behavioural Sciences and LearningFaculty of Arts and Sciences
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