Term
| Which degrades more when transferred from one tape to another, an analog signal or a digital? |
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Definition
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Term
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Definition
| • Process by which redundant information is removed from a digital file, making it smaller so that it can be transmitted more quickly and stored more efficiently |
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Term
| When is a cardioid mike used? When is an omnidirectional mike used? |
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Definition
• Cardioid: picks up sound primarily from one direction
o In a heart shaped patter
• Omni-directional: picks up sound from all directions (13.2) |
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Term
| What is nonlinear editing? |
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Definition
| • Method of editing in which material can be accessed in any order and easily arranged |
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Term
| How is frequency related to cycles per second? |
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Definition
The frequencies can be compared to the different frequencies involved with sound. The human ear is capable of hearing sounds between about 16 cycles per second (low bass) and upward of 16,000 cycles per second (high treble) this means that a low bass sound makes a vibration that cycles at a rate of 16 times per second
cycle per second is one hertz, hertz are used to measure frequency. That is how they are related
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Term
| What is the difference between amplitude modulation and frequency modulation? |
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Definition
amplitude modulation:
o changing the height of a transmitting radio wave according the sound being broadcast
o broadcast in the 535 to 1705 kHz
frequency modulation (FM):
o placing a sound wave on a carrier wave in such a way that the # of recurrances in varied
o stations broadcast between 88-108MHz |
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Term
| What is pulse code modulation? |
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Definition
• PCM
• An audio recording and transmitting pattern that records sound digitally |
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Term
| What is the difference between progressive scanning and interlace scanning? |
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Definition
Progressive scanning
o A technical method of building a TV picture in which information is laid down one line at a time from TOP TO BOTTOM to create a frame
Interlace scanning
o Technical method of building a TV picture in which odd lines are laid down and then even lines are laid down in order to build a frame |
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Term
| What is meant by synchronous? |
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Definition
| o A satellite whose orbit is synchronized with the earth’s rotation, so that it appears to hang motionless in space |
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Term
| What digital projection format is used for digital cinema? |
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Definition
| The projector needed involves more that a million tiny mirrors, each mounted on a hinge that can tilt thousands of times per second. Some of these mirrors respond to digital data representing reds, some to blues, and some to greens. The 0s and 1s to which the image has been reduced instruct each mirror to pivot so that it either reflects or deflects the colored light needed for that image. The light from the mirrors is magnified and focused on the cinema screen to reproduce the image. |
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Term
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Definition
| o The relationship of the height of a TV picture to its width |
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Term
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Definition
| o A piece of equipment used to select the video input that will be taped or shown live |
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Term
| Where are radio waves on electromagnetic spectrum? |
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Definition
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Term
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Definition
| o Transmission in which the transmitting agent needs to be lined up with the receiving agent in such a way there could be visual communication between them |
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Term
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Definition
| o The part of a satellite that carries a particular signal |
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Term
| What is used to transmit signals from news trucks to TV stations? |
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Definition
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Term
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Definition
| o The area served by a wi-fi transmitter in which users can receive a wireless signal to connect to the internet |
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Term
| Who is underwriting digital cinema? |
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Definition
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Term
| Teens use _____ as the most common form of communication. What percentage? |
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Definition
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Term
| What percentage of teens text? |
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Definition
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Term
| _____% of teens send 50+ texts/day |
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Definition
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Term
| What fraction of teens send 100 texts/day? How many per month? |
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Definition
| 1/3 send 100 texts/day (3000/month) |
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Term
| on average, how many texts do boys send per day and how many do girls send per day? |
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Definition
boys: 30/day
· girls: 80/day |
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Term
| What age group and gender are the most active texters? |
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Definition
| girls 14-17 most active texters—send approx 100/day |
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Term
| Do ads viewed on tv or online have better recall? |
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Definition
| better recall from ads viewed online (65%) during shows rather than TV (46%) |
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Term
| TV revenues are down by how much? |
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Definition
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Term
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Definition
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Term
| Time spend on media declined OR increased and by what %? |
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Definition
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Term
| Where has most of the decline in media been? |
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Definition
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Term
| _______ provides a successful venue for location based video ads |
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Definition
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Term
| WHat is the top video content site? |
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Definition
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Term
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Definition
| immediate analysis/twitter feeds |
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Term
| What is the Library of Congress going to do that was in the news recently? |
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Definition
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Term
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Definition
o Interactive
o Will bring teleos further into TV business
o Highly targeted ads
o Triple Play-voice, internet, television
o Hotel rooms create IPTV market for 1 million rooms
o Only 1 channel sent to home at a time
o DVR is virtual (no separate box)
o VOD
o Shop @ home
o Connect w/ home PC
o Lots of videos but no time to watch. |
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Term
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Definition
| cheap TV ad buys, buy a commercial on fox for $100 |
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Term
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Definition
• IPTV set-top box connected to DSL broadband
• Telcos own their own networks and video will come
from a national headend
•
• IPTV through other networks is far more subject to
data loss.
• Only one channel per TV set is sent into the home
•The DVR is virtual |
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Term
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Definition
• May lead to price competition
•
• Video on demand (more services)
•
• EPGs and other interactive services will be simple
•
• Channel changes will be made more quickly
•
• Multiple DVRs
•
• Shop-at-home
•
• Connection with home PC |
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Term
| What channels will be free on IPTV and which will not? |
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Definition
news channels mostly free
sports channels by subscription |
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Term
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Definition
o AT&T U-Verse
o Verizon FIOS
o SureWest: IPTV services
o Going global
o XBOX 360-sort of |
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Term
| Who is coming out with something similar to IPTV |
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Definition
| Google with one built by Android software developers |
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Term
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Definition
o $300B
o 2M subscribers
o 90% have DVR
o 33% of content viewed from DVR
o Desperate Housewives ratings up 61% thanks to DVR |
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Term
| What is a major problem with IPTV? |
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Definition
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Term
| What is going on with the WNEG TV station at UGA? |
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Definition
| WNEG TV station w/ $5M grant but now the money is gone and the station may have to be shut down. |
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Term
| What does the Yankee Group say about consumers? |
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Definition
Yankee Group (NOT NIELSEN) says that consumers are spending less time in 2k9 than 2k8.
most of this decline attributed to declining TV viewership |
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Term
| Who is the #1 online content provider? |
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Definition
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Term
| Which is higher on the spectrum-AM or FM? |
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Definition
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Term
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Definition
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Term
| Which is higher, satellite or broadcast? |
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Definition
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Term
| Historically, which direction have we gone to in terms of frequencies? |
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Definition
historically we have gone from lower to higher and higher frequencies.
o Originally, AM radio |
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Term
| Over time, technology has changed so we have _____ wavelengths and _______ frequencies to transmit |
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Definition
| Over time, technology has changed so we have lower wavelengths and higher frequencies to transmit |
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