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20 Cards in this Set

  • Front
  • Back
what two words does codec derive from?
compression/ decompression
what does MPEG stand for
Moving Pictures Expert Group
what is currently the most popular compression protocol for audio for the net?
MP3
Mp3 is what type of encoding?
perceptual
describe the theory behind this compression protocol and type of encoding
It cuts out the sound below the human threshold of hearing.
What is Lossy and Lossless Compression?
Lossy- a data compression process during which data that is not critical is discarded during compression.

Lostless- data compression in which no data is lost
What does MIDI stand for?
Musical Instrument Digital Interfase
What is Streaming?
it plays the file with out downloading by buffering to take care of speed changes or connection problems
What does MIDI stand for?
Musical Instrumental Digital Interphase
How many channels of information is MIDI repsonsible for carrying?
16
what is synchronization?
the ability to lock 2 or more devices that have microprossecor intellegince so they operate at precisely the same rate
LTC?
longetudial time code
VITC
Vertical interval time code
MTC?
MIDI Time Code
word clock
a syncronization signal that is used to control the rate at which digital audio data is converted or transmitted
SMPTE time code

23.976
HD video, some SD video
SMPTE time code

24
film
SMPTE time code

25
TV, video, film, Europe (PAL)
SMPTE time code

29.97
NTSC
SMPTE time code

30
not currently in use, black and white films