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300 Appendix: MPEG Encoder Settings
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For creating SVCDs and
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the image data
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These levels define the restrictions to the image resolution and the maximum data rate. Low
level can only reach a reduced resolution (352x2888 = CIF); high level, or High 1440,
enables encoding in HDTV format.
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Noise sensitivity: This factor defines how sensitive the encoder will react to noise in the
source material. If the source material only contains a little noise (digital recordings,
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increase the encoding time at the cost of quality. For an unedited analog video you can
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from 1-31.
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to such an extent that changes are only necessary in exceptional cases.
Audio sett
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alm sections of the video it may drop to a minimum value, if there are movements in the
cene it may rise to the maximum value. There are two different regulation processes
mode 1 and mode 128).
dvanced video settings
PEG profile and level: The MPEG-2 standard defines so-called "profiles" and "levels".
DVDs you can use "Main profile and Main level". The high profile
dds additional properties to the data stream like the option to display an image at a
educed resolution for restricted transmission quality (SNR-scalable profile), or locally
caled, for instance an HDTV data stream on a standard TV set. The 4:2:2 profile is used if
is to be encoded for alternative chroma scanning. However, these profiles
re supported by very few encoders, and mainly only for professional use.
stimate movement: These parameters are controlled via the quality controller (see General
ettings).
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omputer animations, or material already de-noised by video cleaning), then you don't have
o change the default value 4, or you can even reduce to increase the quality further.
owever, if you want to encode noisy material, then too low of a factor will considerably
ncrease the factor to 8-14.
oise reduction (click on noise sensitivity): A noise filter is used with adjustable settings
dvanced parameters
dditional expert settings are available in the tree to the right of the window. These should
nly be changed by experienced users. They have been optimized for general applications
ings
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udio Type: You can use MPEG -1/-2, PCM (WAV), or Dolby Digital. You can also select
No audio" in the export dialog.
ample rate: You can set a sample rate of 32, 44.1 or 48 kHz for the audio track. VCDs
nd SVCDs require 44.1 kHz, DVDs require 48 kHz. To reduce the size of audio data it is
ded to lower the bit rate instead of the sample rate.
ode:
igital" is used, then "5.1 Surround" mode may also be selected.
You can use mono, stereo, joint stereo, or dual channel. If audio type "Dolby
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