02400nas a2200241   4500008004100000022001300041245007900054210006900133260001600202300001400218490000800232520145800240653002501698653002301723653004001746653002501786653002601811100002501837700002001862700001801882700002501900856023301925       2019                        eng d  a0003682X00aA real-time bird sound recognition system using a low-cost microcontroller0 arealtime bird sound recognition system using a lowcost microcont  cJan-05-2019  a194 - 2010 v1483 a<p>Monitoring the environment using stand-alone sensor nodes provides valuable information to researchers, practitioners and policy makers. One such problem in this area is bird activity monitoring using its sound patterns. There are several existing devices that can record bird sounds in a region. Then, the stored data is processed off-line. However, the time between the acquisition and processing stages while using such devices is generally of the order of weeks. This approach is not amenable to real-time monitoring. Therefore, there is a need for a system which is able to both monitor the environment and process data on the system itself. The most important attribute of such a system is its power consumption since it operates in the environment only by its battery. In this study, we propose such a stand-alone, energy efficient, low-level, custom-made, real-time bird call processing system concentrated on single-labeled bird calls. The system is composed of a microphone, Texas Instruments Tiva C microcontroller, and a storage unit. The proposed system enables data recording, preliminary on-board signal processing, feature extraction, classification, and data storage. In the proposed system, we simultaneously record and process data. Hence, the system not only stores the environmental sounds, it also classifies the detected birds on-site. The proposed system offers flexibility (both in hardware and software) for expansion.</p>
10aBird call processing10aFeature extraction10aMel frequency cepstrum coefficients10aReal-time processing10aSpectral noise gating1 aKüc̣üktopcu, Okan1 aMasazade, Engin1 aÜnsalan, Cem1 aVarshney, Pramod, K.  uhttps://linkinghub.elsevier.com/retrieve/pii/S0003682X18304213https://api.elsevier.com/content/article/PII:S0003682X18304213?httpAccept=text/xmlhttps://api.elsevier.com/content/article/PII:S0003682X18304213?httpAccept=text/plain