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ToolsforVideoCompression
*LumaRangeExpansion
*BlackLevels
*GammaCorrection
TooslforAudioCompression
*ResamplingAudio
*SettingVolume
*Adjustingchannelsandbitrates
*ReducingNoise
ENCODING
‐Encodingmeansdefiningthecorrectparameters,suchasdatarate,framesize,andframerate,to
getoptimumresultsfortheproject.
‐It’smostimportanttounderstandthegoalsthatthecompressedvideoismeanttoachieve.
Æ
Choosingadataratemode
Dataratemodesinclude:
•averagelimited‐themostcommontypeofdataratelimitation.
‐Inthismode,youspecifytheaveragedatarate,andthecodectriestomakesurethatthefileendsup
attherequestedaverage.
‐Thecodecvariestherateupordowntomatchthechangingdifficultyofthevideo.
‐MostCD‐ROMandQuickTimecodecsworkthisway.