X3

Appendix: MPEG Encoder Settings
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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, computer animations, or material already de-
noised by video cleaning), then you don't have to change the default value
4, or you can even reduce to increase the quality further. However, if you
want to encode noisy material, then too low of a factor will considerably
increase the encoding time at the cost of quality. For an unedited analog
video you can increase the factor to 8-14.
Noise reduction (click on noise sensitivity): A noise filter is used with
adjustable settings from 1-31.
Advanced parameters
Additional expert settings are available in the tree to the right of the window.
These should only be changed by experienced users. They have been
optimized for general applications to such an extent that changes are only
necessary in exceptional cases.
Audio settings
Audio Type: You can use MPEG -1/-2, PCM (WAV), or Dolby
®
Digital. You
can also select "No audio" in the export dialog.
Sample rate: You can set a sample rate of 32, 44.1 or 48 kHz for the audio
track. VCDs and SVCDs require 44.1 kHz, DVDs require 48 kHz. To reduce
the size of audio data it is recommended to lower the bit rate instead of the
sample rate.
Mode: You can use mono, stereo, joint stereo, or dual channel. If audio type
"Dolby
®
Digital" is used, then "5.1 Surround" mode may also be selected.
 Dual channel enables encoding of two mono tracks (e.g. different language
sound tracks) that can be switched during playback.
 Joint stereo is an optimized stereo encoder which takes advantage of the
fact that the signal of both stereo channels is largely identical. Use joint
stereo if you can only use small audio bit rates, but still require a stereo
signal.
 5.1 Surround is available only for surround projects for burning DVDs.
During this process, all 6 surround channels in the audio stream are
encoded.
Note! For Surround projects "Dolby
®
Digital" should be selected under
"Audio type", and "5.1 Surround" under "Mode".