Grass Valley EDIUS Pro v.6.5 - Manual (Page 452)

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430 EDIUS - Reference Manual
[Extended Settings] tab
[Audio settings] [Format]
Select the audio compression format from the list.
[Channel]
Select from [Stereo], [Dual Channel] or [Joint Stereo]. [Stereo] is normal
stereo that records separately on the left and right sides. If there is a large
difference between the left and right audio, compared to stereo that saves
audio with a greater focus on one side, [Dual Channel] records totally
independently so that there is no bias in sound quality to one side. Select to
enter narration in 2 languages, etc. [Joint Stereo] improves audio quality and
compression ratio when recording left and right audio separately by
automatically using a single channel that combines the audio when the left
and right sides are the same or one more channel when the left and right
audio are different.
[Bit Rate]
Select a bitrate from the list.
[Video settings] [Field Order]
For interlace, a field order can be selected.
[Chroma Format]
Select a YUV pixel format from the list.
[Profile & Level]
Select a profile & level. If [Chroma Format] is [4:2:0] and [4:2:2], the profile
will be set to Main Profile and 422Profile, respectively. The level for SD
image quality will be Main Level, and the level for HD image quality will be
High Level. The profile & level changes according to the format selected in
[Chroma Format].
[GOP Structure]
For MPEG, a certain number of frames is considered as a group, and
operations such as compression/enlargement and cut editing are performed
on a GOP basis. A GOP comprises “I frame”, “P frame” and “B frame”. The I
frame allows images to be reproduced independently, the P frame is for
recording and reproducing only the differences with the preceding image,
and the B frame reproduces images from the differences in the preceding
and following images. Select I, P and B frame patterns of the GOP from the
list. Normally, select [IBBP].
[I-Frame Only] is comprised of only I-pictures. Editing is made easier, but the
amount of data increases in size.
[Picture count]
Set the number of frames included in a group.
[Closed GOP]
Check this item to complete information within each GOP. Although the
amount of data increases, the video can be re-edited using software that
supports GOP-based editing. Normally, leave this item unchecked.