There's something similar that I hope to do in my retirement: capture natural sounds that we cannot hear because they are too low or too high in frequency, or their modulation is too low or too high in frequency. I'd also like to develop a phase-array microphone that will let me accurately point a camera at the source of a sound (especially for birds). Way back in the early '80s I briefly played around with these notions, but the compute power available then made it impractical. Today the compute power in my iPhone is more than adequate! Digital audio capture and electronic phase delay has also gotten much easier and cheaper than it used to be. I think the most challenging aspect of these projects today will be the digital signal processing (software), not the hardware...
Thursday, June 11, 2015
Visual perspectives...
There's something similar that I hope to do in my retirement: capture natural sounds that we cannot hear because they are too low or too high in frequency, or their modulation is too low or too high in frequency. I'd also like to develop a phase-array microphone that will let me accurately point a camera at the source of a sound (especially for birds). Way back in the early '80s I briefly played around with these notions, but the compute power available then made it impractical. Today the compute power in my iPhone is more than adequate! Digital audio capture and electronic phase delay has also gotten much easier and cheaper than it used to be. I think the most challenging aspect of these projects today will be the digital signal processing (software), not the hardware...
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