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Appendices : MPEG Settings (MainConcept Encoder) Page 256
Audio Settings
This Tab offers adjustments for audio export :
The Audio Settings include the following options and parameters:
Audio type: Shows the current Audio type. Click to change the type;
None If you do not want to encode audio, select None here.
MPEG-1 Layer 1 Not used commonly
MPEG-1 Layer 2: Used for VCD , SVCD and PAL DVD
PCM Used for NTSC DVD
NTSC DVDs use LPCM (Linear PCM) audio (or AC3) as the standard audio type instead of MPEG Layer2. LPCM is an
uncompressed audio format, which offers higher quality but it also uses far more of the total bitrate (consequently
less bitrate is available for the video stream). PCM is only available for MPEG-2 type streams, and is seldom used for
PAL DVDs.
MPEG: details
De-Emphasis Shows current de-emphasis option. Click to choose from:
None
50/15 uS
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This is a flag to the player specifying what kind of de-emphasis to perform on the audio. DVD and SVCD specify
None, VCD can be either None or 50/15 uS.
Mode Shows the current mode. Click to choose Stereo or Standard stereo, Joint Stereo, Dual
Channel or Single Channel.