X5

Appendix: MPEG Encoder Settings 355
Noise reduction (click on noise sensitivity): A noise filter is used which has 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 adjustment is 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".
Bit rate: Here you can set the audio signal bit rate. The higher the bit rate, the better
the playback quality. VCD requires 224 kBit/s, and for SVCDs and DVDs select a
value between 384 kBit/s and 448 kBit/s.
Dolby® Digital Details
Hint: These functions are available only in the "5.1 Surround" mode.
Dialog normalization: Set the dB level of spoken dialog. This value will be used to
adjust the total volume of DVD movies and different programs that can be received
by the DVB. To do this, you must first measure the volume of spoken dialogs in your
movies. The values 1-31 correspond to volume levels of -1 to -31 dB.