| Back in 2011, Elektor presented a DIY 50-m range directive sound beam using an array of piezo ultrasonic transducers (up to 200) driven with...
All items tagged with Audio and ultrasonic (4)
| This circuit adjusts the gain of (small) input signals such that the amplitude of the output signal is constant over a wide range. The contr...
| For the first time engineers from the University of Bristol have demonstrated that it is possible for objects that are larger than the wavel...
| Looking for an audio project? This article explores the design of a DIY 50-m range directive sound beam using an array of piezo ultrasonic t...