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A long-range acoustic device (LRAD), acoustic hailing device (AHD) or sound cannon is a specialized loudspeaker that produces sound at high power for communicating at a distance. It has been used as a method of crowd control , which has caused permanent hearing damage , having an extremely high decibel capacity (up to 160 dB measured at one ...
KPWR airs tests of the Emergency Alert System. KPWR, along with KBRT are the only 2 radio stations in the Los Angeles area to support HD Radio notifications for the Emergency Alert system. When KPWR airs tests of the Emergency Alert System, the alerts sound extremely distorted, due to a broken Sage Digital.
In audio systems, parasitic oscillations can sometimes be heard as annoying sounds in the speakers or earphones. The oscillations waste power and may cause undesirable heating. For example, an audio power amplifier that goes into parasitic oscillation may generate enough power to damage connected speakers. A circuit that is oscillating will not ...
In signal processing, distortion is the alteration of the original shape (or other characteristic) of a signal.In communications and electronics it means the alteration of the waveform of an information-bearing signal, such as an audio signal representing sound or a video signal representing images, in an electronic device or communication channel.
Many electric guitar players intentionally overdrive their amplifiers (or insert a "fuzz box") to cause clipping in order to get a desired sound (see guitar distortion).. Some audiophiles believe that the clipping behavior of vacuum tubes with little or no negative feedback is superior to that of transistors, in that vacuum tubes clip more gradually than transistors (i.e. soft clipping, and ...
Google is making Live Transcribe, its Android app for easy voice transcription, a lot more useful. Now, in addition to jotting down spoken words, it'll also make you aware of things like a dog ...
In addition to high-quality, immersive sound, Lucid’s Surreal Sound system will also be used for driver safety alerts. Instead of a generic ping for an unbuckled seatbelt, the sound will come ...
3. Under "New Mail," select your notification option: • Play a sound when new mail arrives - Default sound. • Play "You've Got Mail" when new mail arrives - Customize it with a celebrity voice. 4. Click Back to Inbox when done.