25 Jul
2013
25 Jul
'13
11:09 p.m.
On Thu, 25 Jul 2013 16:14:20 -0400
Martin Cracauer <cracauer(a)cons.org> wrote:
Fons Adriaensen wrote on Thu, Jul 25, 2013 at
07:40:53PM +0000:
I always finalise a wav file in Audacity with the peak level at -1dB. Seems to
work for me :)
--
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
On Thu, Jul 25, 2013 at 02:21:50PM -0400, Martin
Cracauer wrote:
Ah. Makes sense. Thanks so much!
Is there a rule of thumb how many db less I should give music to avoid
this? What would be the value for pink noise starting at 40 Hz? Does anybody know why wav files that do not have
clipping would clip
when encoding them with lame?
Because the peak sample value says nothing about the real
level. Take a square wave with peak values +/-1. It is the
sum of a number of sine waves, with frequencies 1,3,5,7,...
times the frequency of the square wave. The first one has
a peak value of about +/-1.27, that is +2 dB. So any encoding
that looks at the spectrum (and mp3 does) will see a level
that is +2 dB.