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20 Cards in this Set
- Front
- Back
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what two words does codec derive from?
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compression/ decompression
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what does MPEG stand for
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Moving Pictures Expert Group
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what is currently the most popular compression protocol for audio for the net?
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MP3
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Mp3 is what type of encoding?
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perceptual
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describe the theory behind this compression protocol and type of encoding
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It cuts out the sound below the human threshold of hearing.
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What is Lossy and Lossless Compression?
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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 |
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What does MIDI stand for?
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Musical Instrument Digital Interfase
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What is Streaming?
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it plays the file with out downloading by buffering to take care of speed changes or connection problems
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What does MIDI stand for?
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Musical Instrumental Digital Interphase
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How many channels of information is MIDI repsonsible for carrying?
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16
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what is synchronization?
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the ability to lock 2 or more devices that have microprossecor intellegince so they operate at precisely the same rate
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LTC?
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longetudial time code
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VITC
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Vertical interval time code
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MTC?
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MIDI Time Code
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word clock
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a syncronization signal that is used to control the rate at which digital audio data is converted or transmitted
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SMPTE time code
23.976 |
HD video, some SD video
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SMPTE time code
24 |
film
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SMPTE time code
25 |
TV, video, film, Europe (PAL)
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SMPTE time code
29.97 |
NTSC
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SMPTE time code
30 |
not currently in use, black and white films
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