Browsing by Author "Camarena, Javier"
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Item Audio classification techniques in home environments for elderly/dependant people(2010) Lozano, Héctor; Hernáez, Inmaculada; Picón, Artzai; Camarena, Javier; Navas, Eva; Medical Technologies; COMPUTER_VISION; Tecnalia Research & InnovationThe study of techniques and algorithms for "non-speech" sounds analysis and processing can be foreseen as a technological progress bringing important benefits to disadvantaged groups. This article focuses on finding solutions which allow the detection and classification of household sounds with two clearly defined objectives: 1) Helping people with hearing impairment to overcome daily situations which they have to deal with, such as warnings/alarms, door bells or telephones ringing, alarm clocks, etc. 2) To collect information from the environment which may be used to track the behavior pattern of an individual.Item Identification of sounds and sensing technology for home-care applications(2012) Lozano, Héctor; Hernáez, Inmaculada; Camarena, Javier; Díez, Ibai; Navas, Eva; Medical Technologies; Tecnalia Research & InnovationThis article focuses on an analysis of the needs of Hearing Impaired People and on the development of a recognition of environmental sounds system in a typical home. Based on the extraction of acoustic characteristics (Mel Frequency Cepstral Coefficients, Zero Crossing Rate, Roll Off Point and Spectral Centroid) and their combination with data from presence sensors, an accuracy rate of 88.4% was obtained.