RT info:eu-repo/semantics/article T1 Audio feature engineering for occupancy and activity estimation in smart buildings A1 Santiago, Gabriela A1 Jiménez, Marvin A1 Aguilar Castro, José Lisandro A1 Montoya, Edwin K1 Audio feature engineering K1 Acoustic features K1 Activity estimation K1 Occupancy estimation K1 Smart buildings K1 Informática K1 Computer science AB The occupancy and activity estimation are fields that have been severally researched in the past few years. However, the different techniques used include a mixture of atmospheric features such as humidity and temperature, many devices such as cameras and audio sensors, or they are limited to speech recognition. In this work is proposed that the occupancy and activity can be estimated only from the audio information using an automatic approach of audio feature engineering to extract, analyze and select descriptors/variables. This scheme of extraction of audio descriptors is used to determine the occupation and activity in specific smart environments, such that our approach can differentiate between academic, administrative or commercial environments. Our approach from the audio feature engineering is compared to previous similar works on occupancy estimation and/or activity estimation in smart buildings (most of them including other features, such as atmospherics and visuals). In general, the results obtained are very encouraging compared to previous studies. PB MDPI SN 2079-9292 YR 2021 FD 2021-10-24 LK http://hdl.handle.net/10017/50073 UL http://hdl.handle.net/10017/50073 LA eng NO European Commission DS MINDS@UW RD 16-abr-2024