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For example, on the Discovery Channel, bleeping is extremely common. In the case of scripted comedies, most bleeping may be used for humorous purposes, and other sound effects may be substituted for the bleep tone for comical effect; examples of this include a slide whistle, a baby cooing, dolphin noises, or the "boing" of a spring.
Studies have shown that 234 Android applications are eavesdropping on these ultrasonic channels without the user's awareness. [3]Applications such as SilverPush, Shopkick, and Lisnr are part of an "ultrasonic side-channel" in which the app, often unbeknownst to the user, intercepts ultrasonic signals emitted from the user's environment, such as from a TV, to track which advertisements the user ...
Sound from ultrasound is the name given here to the generation of audible sound from modulated ultrasound without using an active receiver. This happens when the modulated ultrasound passes through a nonlinear medium which acts, intentionally or unintentionally, as a demodulator .
Sound field of a non focusing 4 MHz ultrasonic transducer with a near field length of N = 67 mm in water. The plot shows the sound pressure at a logarithmic db-scale. Sound pressure field of the same ultrasonic transducer (4 MHz, N = 67 mm) with the transducer surface having a spherical curvature with the curvature radius R = 30 mm
Free advertising-supported streaming television (FAST) is a category of streaming television services which offer traditional linear television programming ("live TV") and studio-produced movies without a paid subscription, funded exclusively by advertising akin to over-the-air or cable TV stations.
A leading Russian rights group says it has received a notice from YouTube threatening to block access in Russia to one of its video channels featuring news on the war in Ukraine. OVD-Info, an ...
Ultrasound (ultrasonic) is sound at a frequency high enough that humans can not hear it. Sound has a frequency (low to high) and an intensity (quiet to loud). Ultrasound is used to clean jewellery, weld rubber, treat abscesses, and sonography. These applications rely on the interaction of sound with the media through which the sound travels.
Ultrasonic hearing is a recognised auditory effect which allows humans to perceive sounds of a much higher frequency than would ordinarily be audible using the inner ear, usually by stimulation of the base of the cochlea through bone conduction. Normal human hearing is recognised as having an upper bound of 15–28 kHz, [1] depending on the person.