If it will be useful - i can make module for iSpy, which will allow to detect motion near PC or notebook. There is no matter, where is motion - if it occurs in acoustic field near webcam microphone - it will be detected. My project is published under Apache 2.0. Current version released in VB.NET, but it can be converted to C++. Anyone can help me. Maybe, i will try to improove quality of motion detection.
About hardware: there is enough webcam's microphone (because webcam can sample at 48 kHz and can accept sine with frequency up to 21 hHz) and cheap usb speakers.
https://github.com/art-drobanov/ExactDo ... oppler.png
https://github.com/art-drobanov/ExactDo ... lerRaw.png
Got any feature requests or suggestions?
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