On Wednesday July 31 2002 07:47 am, Roman Korcek wrote:
> Hi,
> Just learnt how to use normalize, but am still confused about the
> normal and -mix mode. Let's say I have three files with the RMS
> volume of 3, 5 and 7 (1 being quietest, 10 being loudest). As far as
> I understand, normalize without switches raises the RMS volume of all
> the files to 10. Normalize in the mix mode should calculate the
> average RMS volume (5 in this case) and put all files' RMS volume to
> this level. However, today -mix gave me a higher volume on the output
> file than normalize without switches. How come?
MIX MODE
This mode is made especially for making mixed CD's and the
like. You want every song on the mix to be the same vol�
ume, but it doesn't matter if they are the same volume as
the songs on some other mix you made last week. In mix
mode, average level of all the files is computed, and each
file is separately normalized to this average volume.
So, for example, in my /wav directory, I run 'normalize -m *.wav'
IME, that this always goes thru all the .wav files, and determines an
average volume. Then normalize proceeds to show that it is either
raising or lowering (+db, -db) each individual file to the average
volume level.
Maybe I don't understand your question. IME, tho, that normalize
works best, the more files you equalize at the same time. I always do
at least 20 or more at once (about what'll fit on an audio CD). If
I've got more, specially enough for 2 or more CD's, I normalize 'em all
together. IOW's 'the more the merrier' ;)
--
Tom Brinkman Corpus Christi, Texas
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