[RDD] Meters vs. dBFS(?)
curt at gwis.com
Tue Apr 21 01:59:48 EDT 2009
On Sunday 19 April 2009 05:33 pm, Gavin Stephens wrote:
> Excuse my clarification, I need to make sure I've got this understood right.
> So if the card driver and/or Rivendell is designed for -16dBFS (Rivendell
> meters aside) and I bump the output up 4dB for -20dBFS via RDAdmin, does
> that mean a peak at -4dBFS then becomes the same thing as 0dBFS as far as
> the card/ASI driver (not Rivendell) is concerned and anything higher will
> distort? Or is there still that 4dB extra of headroom left?
If we assume FS= -16 then bumping up means FS= -12, not 20.
Remember those + and -.
Then, remember that peak to average is, on average, about 6 to 9 db.
You've very little left for any transient.
> I only ask this because I've noticed in Linux, 100% mixer volume on my
> domestic sound card is FAR louder and distorted than the 100% in Windows (I
> only have it around 75% in Linux which sounds the same as 100% in Windows).
What's the Igain and PCM settings for each ?
Any simple idea will be worded in the most complicated way.
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