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dumb ac3 questions…
okay, i’ve been doing this for awhile, but really noticed it tonight. i get a nice audio mix in FCP, say with 2 channels of VO and 2 channels of music, then go through Compressor to make the m2v and ac3 (and aiff) files. i get to DVD SP and the ac3 file is always much “quieter” than the aiff…and is only 1 channel (but so is the aiff). shouldn’t i really be getting two channels into DVD SP for stereo?
thanks for helping out a bonehead!
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4 Replies
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The ac3 sound is always much quieter than PCM, it’s nothing wrong with it. The quieter channel problem you have may be caused by wrong timeline settings. Go in the menu to timeline, settings and then audio outputs and add all channels you want to use in your downmix. Hope it’s helpful and not to lame reply ;-).
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You need to change the settings when encoding your AC3 file. The default settings are WRONG.
Use these settings for stereo.
Audio Pane:
Audio Coding Mode: 2/0 (L, R)
Sample Rate; 48k
Data Rate: 192kbs
Bit Stream: Complete Main
Dialog Normalization: -31 NOT the default -27Pre-Processing Pane
Compression Preset: NONE (NOT the default FILM STANDARD COMPRESSION, which is for MOVIE THEATER SOUND SYSTEMS)
Turn of the Low Pass and DC filters. -
not lame at all, but my settings were already there….
thanks for helping out a bonehead!
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very interesting…i tried these exact settings, yet heard no noticable difference.
thanks for helping out a bonehead!
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