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Some info about BULGARIAN
Category
MUSIC
In signal processing, a signal is a function that conveys information about a phenomenon.[1] Any quantity that can vary over space or time can be used as a signal to share messages between observers.[2] The IEEE Transactions on Signal Processing includes audio, video, speech, image, sonar, and radar as examples of signals.[3] A signal may also be defined as any observable change in a quantity over space or time , even if it does not carry information.[a] <
Wikipedia contributors, "Signal," Wikipedia, The Free Encyclopedia,
ABOUT THE BULGARIAN LANGUAGE