They developed a calculation to divide the sound into smaller pieces and then estimated the source location for all the small pieces, correcting for delays caused by the speed of sound in air at room temperature and at standard atmospheric pressure.
They developed a theoretical grid across the floor of the chamber, spaced at a quarter of a millimeter.
Much like an animal, the girl spat, sniffed and clawed.
But scientists have known for a long time that male mice belt out something like love songs to females when the time seems right to them.
What they didn't know — until a University of Delaware researcher developed a sophisticated array of microphones and a sound analysis chamber — was that female mice were singing back.
They rigged up an acoustically precise chamber, surrounded by foam, that had nylon mesh walls to reduce "reflections" — the phenomenon of sound bouncing around an enclosed space and off walls.
They installed an array of four microphones, illuminated the chamber with infrared light, and linked each mouse to a tracking system.
Her emotional development was practically non-existent, and she could not speak.
With this heartbreaking story, the world was being introduced to a fragile, beautiful teenager who seemed and behaved like an infant, or ...
From each point on the grid, they calculated the estimated delay between each possible pair of microphones and used this to analyze sounds and estimate their sources.
With all of that, they produced Mouse Ultrasonic Source Estimation (MUSE) software, now available for download.
Neunuebel’s new lab at UD is looking at social communication in mouse models of autism.