Originally posted by: BelbucusWith Empire, I started where the noise floor began in the waveform (which happened to be roughly a second before the Fox logo cue), thinking that this might be related to the offset required. This did not hold true for Jedi, where there were only a few milliseconds of noise floor at the head. My guess is that they will both need to be adjusted. If you were to receive a WAV file containing the first few seconds of the DVD audio with the correct delay, would you be able to tell us the exact figure to apply? Estimates on the previous file ranged from 1.000s to 1.020s. (Although, TBH I don't think a difference of 20ms is noticeable.)
Originally posted by: Belbucus
Perhaps both. The PCM of Empire is audibly and visibly more dynamic. I also came across at least one example where the actual timbre was different. That's strange, since both tracks are from the same source. So in theory, an AC-3 track properly encoded from your PCM audio could sound better than the actual DVD!
Originally posted by: Belbucus
I’ve never heard a db figure associated with this, I’d be curious as to the source. If it’s a Dolby standard, then it’s likely referenced to 0 db = 85dbc in a properly calibrated theater (or home theater). Dialogue level is a great absolute in setting playback level. I heard it referred to once as “associated level”. While nobody really knows how loud an exploding sail barge is, everybody has very much the same notion as to where a comfortable dialogue level should sit, because it’s something everybody can “associate” with.
This comes from the guides on Dolby's website, but a summary of the procedures can be found on the
Doom9 forums.
Originally posted by: BelbucusI don’t remember making the statement but that’s nothing new. If I did, I would have been wrong. From a glance at the waveform it appears to be the least dynamic of all – including the mono mix. Maybe the thinking at the time was to optimize it for the “pre-home theater” / lower-volume crowd – who knows?
My bad with the dynamic range comment. What you actually said was that you expected the '85 mix to have a wider stereo image and more low frequency content. Does this ring true?