Black noise is 1. noise that has a frequency spectrum of predominantly zero power level over all frequencies except for a few narrow bands or spikes. Note: An example of black noise in a facsimile transmission system is the spectrum that might be obtained when scanning a black area in which there are a few random white spots. Thus, in the time domain, a few random pulses occur while scanning. In general usage, noise can be considered data without meaning; that is, data that is not being used to transmit a signal, but is simply produced as an unwanted by-product of other activities. ... Sine waves of various frequencies; the lower waves have higher frequencies than those above. ... // Mechanical power In physics, power (symbol: P) is the amount of work W done per unit of time t. ... Black is a color with several subtle differences in meaning. ... This page is a candidate to be moved to Wiktionary. ... In telecommunications a transmission system is a system that transmits a signal from one place to another. ... The terms scan and scanning have several meanings: In telecommunication: The term scan has the following meanings: To examine sequentially, part by part. ... Time-domain is a term used to describe the analysis of mathematical functions, or real-life signals, with respect to time. ...

Source: Federal Standard 1037C This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... Federal Standard 1037C entitled Telecommunications: Glossary of Telecommunication Terms is a U.S. Federal Standard, issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended. ...

2. The title of the first scholary exploration of rap music penned by Tricia Rose, Professor of American Studies at the University of California, Santa Cruz.