A new Grateful Dead book 'Loud and Clear' tells the definitive story of the rock band's famous 100-foot wide speaker system.

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 a PWM signal. While the ultrasonic directive speaker ...

To experience Sony 360 Reality Audio, you'll need the right kit and compatible software. To experience 360 Reality Audio on a pair of headphones, you’ll first need to download the iOS/Android app for ...

By fitting Eq. 2 and Eq. 4 to the experimental data of the voltage at the capacitor (RC circuit) during its discharging and to the experimental data of the voltage at the resistor (RL circuit), the ...

The five-star Ruark Audio MR1 Mk2 are powered speakers. (Image credit: Ruark Audio) Whereas all active speakers are considered powered, not all powered speakers should be called active. The difference ...

The 74121 IC is a monostable multivibrator, the pulse length of which may be varied from 40 ns to 40 s. An external RC-network determines the duration of the pulse and if the fixed resistor in this ...