Research aimed at developing ultrasonic microphones with insect-like sensitivity is to continue in the rainforests of Colombia and Ecuador. Research aimed at developing ultrasonic microphones with ...
A new invention has proven that audio can successfully be transmitted directly to a listener's ears without being audible to others around. Using ultrasonic waves beamed through a 3D-printed ...
Create a focused speaker so your music targets only the listener. That demodulates at 40 kilohertz, with an H-bridge and ...
These are the type of flow meters that measure the velocity of liquid or gas by using the principle of ultrasound or sounds waves. Fast digital signal processors and sophisticated signal analysis ...
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