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Canon XL1 3CCD Camcorder User Manual

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ToolsforVideoCompression

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*LumaRangeExpansion

*BlackLevels

*GammaCorrection

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TooslforAudioCompression

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*ResamplingAudio

*SettingVolume

*Adjustingchannelsandbitrates

*ReducingNoise

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ENCODING

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‐Encodingmeansdefiningthecorrectparameters,suchasdatarate,framesize,andframerate,to

getoptimumresultsfortheproject.

‐It’smostimportanttounderstandthegoalsthatthecompressedvideoismeanttoachieve.

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Choosingadataratemode

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Dataratemodesinclude:

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•averagelimited‐themostcommontypeofdataratelimitation.

‐Inthismode,youspecifytheaveragedatarate,andthecodectriestomakesurethatthefileendsup

attherequestedaverage.

‐Thecodecvariestherateupordowntomatchthechangingdifficultyofthevideo.

‐MostCD‐ROMandQuickTimecodecsworkthisway.

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