This master's thesis is a result of completion of post-graduate master's degree
studies at the Faculty of Electrical Engineering, at University of Ljubljana. The
idea to develop a device that would monitor audio events in the forest and warn
in case of illegal activities, gave my mentor prof. dr. Dejan Kriºaj, during the
post-graduate studies. The device in its commercial form enables owner to take
neccesary immediate actions upon suspicious activities in forest, which would
simplify the detection of oenders.
The introductory chapter gives a brief overview of the development of digital
signal processing and the methods for environment sound recognition. Next
chapters describe electric circuit device and related software development in both
the Matlab environment as in C++ language for DSP processor. The nal part of
the thesis presents the results of testing, in Matlab in a laboratory environment
where the audio was played through the speaker and in a natural environment.
Finally improvements and changes needed before the marketing of the device are
proposed.
|
