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28 Cards in this Set
- Front
- Back
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Humans can only see and hear information in what form? |
Analog |
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Analog |
Processes and records a continuous signal that fluctuates exactly like the original signal. |
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Digital |
Not continuous Takes smaller regular stages in signal fluctuation and assigns specific values to each stage. |
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Analog copy |
Like original Amplifies unwanted noise |
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Digital Copy |
Dependent on sampling parts of the wave Can be reproduced EXACTLY |
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Pixel |
One of the minute units that makes up a picture |
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Digital Enlargement |
Pixellation |
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Bit |
Smallest unit of data |
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How many bits equals a byte? |
8 bits |
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Sample Rate |
Number of samples per second |
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Anatomy of a video file |
Video Stream Audio Stream Metadata (Frame rate, bit rate, etc.) |
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NTSC |
525 lines of vertical resolution 480 of these are visible (480i) |
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ATSC |
Advanced Television System's Committee
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What are the 2 agreed upon HD standards for video quality? |
1080i and 720p |
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UHDTV |
Ultra High Definition Television |
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How many lines of resolution are in a 4K set? |
2160p |
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How many pixels are on an UHDTV set? |
8 million |
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How many pixels are on a 1080p set? |
2 million |
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Benefits of the digital signal |
Clearer picture More efficient signals Allows single station to provide multiple channels Limit Broadcasters' ability to multitask |
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Characteristics of Digital T.V. |
Aspect Ratio = 16:9 No generation loss Computer Compatibility
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Downloading |
User receives data sent in packets. Cannot call up file until it's complete |
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Streaming |
Receive data as continuous flow Can watch it while files are being transferred Compression Standard MPEG-4 |
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4 Standard Video Connectors |
BNC RCA Phono HDMI FireWire/ieee1394 |
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How do digital recording systems convert analog video signals? |
By sampling the scanned image and translating it into digital code. The actual digital recording stores DATA instead of actual video and audio signals. |
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Analog Professional Formats |
Kinescope 2" Quad Machines 1" Helical Scan- Smaller 3/4" U-Matic- Cassette, Portable 1/2" Betacam M-Format |
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Analog Home/Consumer Formats |
Betamax VHS VHS-C Hi-8 |
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Digital Professional Formats |
D1-D9 Digi-Beta DVCAM/DVC Pro |
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Digital Consumer Formats |
DV and Mini-DV MPEG & DVD Tapeless/Flash Memory Based Camcorders (SD Cards)
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