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A digital delay line (or simply delay line, also called delay filter) is a discrete element in a digital filter, which allows a signal to be delayed by a number of samples. Delay lines are commonly used to delay audio signals feeding loudspeakers to compensate for the speed of sound in air, and to align video signals with accompanying audio ...
When their signal is reflected back, it is mixed with the inverted signal from the delay line, which cancels out the echo. This allowed both modems to use the full spectrum available, doubling the possible speed. Echo cancellation is also applied by many telcos to the line itself and can cause data corruption rather than improving the signal.
One example of an analog delay line is a bucket-brigade device. [1] Other types of delay line include acoustic (usually ultrasonic), magnetostrictive, and surface acoustic wave devices. A series of resistor–capacitor circuits (RC circuits) can be cascaded to form a delay. A long transmission line can also provide a delay element. The delay ...
With a legacy of more than 100 years, the Better Business Bureau (BBB) is the go-to watchdog for evaluating businesses and charities. The nonprofit organization maintains a massive database of ...
Delay-line memory is a form of computer memory, mostly obsolete, that was used on some of the earliest digital computers, and is reappearing in the form of optical delay lines. Like many modern forms of electronic computer memory, delay-line memory was a refreshable memory , but as opposed to modern random-access memory , delay-line memory was ...
The DL4 by Line 6, introduced in 1999, is a digital delay pedal. It is one of the first digital modeling effects units . [ 1 ] The DL4 features models of 16 vintage delay effects, including the Echoplex , Roland Corporation 's Space Echo , and the Electro-Harmonix Deluxe Memory Man. [ 2 ] It is also used for looping . [ 3 ]
Dec. 12—Question : Kokua Line frequently says to contact this or that city agency when a problem occurs, such as with abandoned cars or homeless camps or missing driver's licenses—all sorts of ...
It is also known as delay line interferometer (DLI), or simply called DPSK demodulator. Working principle of optical DPSK demodulation: (a) Incoming DPSK signal with uniform intensity, (b) 1-bit delay of the incoming DPSK signal with uniform intensity, and (c) Demodulated intensity signal after interference between (a)/(a′) and (b)/(b′).