well i'm back, miss me ?
well, i didn't miss you.
well, this blog will be about video and whatnot.
so strap in for the ride.
QUESTION ONE
The video format we will be using this term is Digital Video, what is the other, older format that was used recently.
It was analog.
QUESTION TWO
Describe the difference between the two formats ?
Analog is made up of continuously varying waveforms. Digital is transmitted only as precise points selected at intervals on the curve.
QUESTION THREE
What are some advantages of digital video ?
You get a clearer picture and better colours.
QUESTION FOUR
What is meant by frame rate in video ?
A video is made up of different frames moving quickly. A frame rate is the rate they move at.
QUESTION FIVE
Do all applications use the same frame rate, explain your answer
They don't have to, but it is recommended as below 10 frames/second, the viewer becomes to notice the jerkiness.
QUESTION SIX
What is meant by resolution, how is it measured ?
It is represented by the number of individual pixels that are on the screen, and is expressed as a number of horizontal pixels times the number of vertical pixels.
QUESTION SEVEN
What is the colour system called RGB ?
It stands for the red, green, and blue components of a colour.
QUESTION EIGHT
Explain the video standards PAL, NTSC, and SECAM, what are the main differences between them.
PAL, is used to format decks and cameras, NTSC, is one format to record vidoes on VHS and SECAM, is an analog colour television system. The main difference between these three video standards is a format only used for broadcasting, that they are used in different countries.
QUESTION NINE
Which standard do we use in Australia?
We use PAL
QUESTION TEN
For what type of video camera would you need to have a Video Capture Card in your computer to download video?
An analog one.
QUESTION ELEVEN
Why don’t we need a video capture card for the video we will be doing at school?
We'll be using digital cameras.
QUESTION TWELVE
What is an IEEE 1394 port?
It is a port in which you connect an IEEE 1394 connector to a DV camera to a computer IEEE 1394 port.
QUESTION THIRTEEN
Why do digital video cameras use video compression?
When a video is digitized it will be compressed, it is also because the video size may be too big.
QUESTION FOURTEEN
Describe what a codec is?
Codec is what compresses and decompresses video's.
QUESTION FIFTEEN
What is meant by generation loss, where does it happen?
Generation loss is when you photocopy something or whatever and it's not as goos as the original. It happends in analog and only in digital when a video is repeatedly compressed and decompressed.
doneeeeeeeeeeeeeeeeeeeee
: )