Study Q Ch 13 Techncial Post Essay

Submitted By zldnl98
Words: 1159
Pages: 5


1. “Zoom In,” page 351. “The technical difference between d__________ and a__________ is that d__________ utilizes discrete on and off impulses, whereas a__________ involves a continuous” signal.

2. You produce a radio feature about the Santa Ana Zoo. You want to record the sound of some of the animals, but you have to stay outside their cages. This means you have to point your microphone at the animals, hoping to pick up their sounds from just one direction, without picking up the extra noises around you. For this recording, you choose a microphone with a c__________ rather than an o_______________ pickup pattern [bold terms].

3. Audio “computer programs have innumerable effects, often referred to as s__________ p__________ [bold term], which can be used to enhance and alter the various sounds (e.g., echo, equalization).

4. A s__________ [bold term] for video is similar to an a__________ b__________ for sound in that it [the former] mixes various pictures together”—just as the latter mixes sounds together [bold terms].

5. “The trend in lighting is to use bulbs, such as __________, that are cool, small and energy efficient [bold term].

6. N__________ e__________ software [bold term]… allows picture and sound to be manipulated easily. Any shot [or sound] can be placed anywhere on the final product and then moved about easily.”

7. The m__________ c__________ process “involves scanning the movements of a real person and using those basic movements for a computerized ‘person’” [bold term].

8. With f__________ o__________, “audio, video, or other data can be sent through an optic strand that is less than a hundredth of an inch in diameter” by carrying “digital information through the glass fiber on light produced by laser diodes” [bold term].

9. In cable TV systems, the h__________ is “where all the inputs, such as local TV stations, pay cable networks, and internet phone services are received… [and] placed on a wire that is either buried underground or hung on telephone poles” [bold term].

10. In the electromagnetic spectrum, the frequency “rates are usually measured in h__________ in honor of the early radio pioneer….. One h_________ (Hz) is one cycle per second” [bold term].

11. The radio part of the electromagnetic spectrum—the part used to transmit audio and video signals—ranges from about 30 kilohertz (Hz) to about 300 GHz (300,000 MHz). Above that range, the spectrum is not usable for radio transmissions (at least not yet—technology could change this) because “above radio waves on the electromagnetic spectrum are i__________ rays and then light waves.

12. After World War II, the FCC reallocated television frequencies into two categories based on their relative position in the electromagnetic spectrum, “v__________ h__________ f__________ (VHF) and u__________-h__________ f__________ (UHF)” [bold terms].

13. At a radio station’s transmitter, the audio signal is “modulated, which means” what [bold term]?

14. Radio modulation comes in three types: AM, FM, and PCM (the third used for HD radio, a.k.a. IBOC). For what do these three abbreviations stand, and what is one advantage of each [bold terms]?

15. You own an FM radio station and decide to use part of your bandwidth—in addition to your normal program signal—to pipe music to doctor’s offices that have special receivers to tune in this “extra” programming. This is possible because “the broader bandwidth of FM enables independent signals other than those needed for digital and stereo sound to be m__________ on an FM radio station signal” [bold term].

16. Prior to the national switch to digital television in June 2009, for analog TV “the v__________ signal was amplitude modulated, and the a_________ signal was frequency modulated in either monaural or stereo. The two were then joined and broadcast from the station antenna…. Digital TV is modulated in a manner similar to digital radio.”

17. TV images