Tech Support > Computers & Technology > Audio, MP3 & Music > Does Normalizing also Compress?
Does Normalizing also Compress?
Posted by Fred Jones on June 28th, 2003


When you use the normalize function in NERO (and other rippers,
burners, etc.) to reduce the volume variations of a group of WAV files
from different sources, does the normalize process increase/decrease
the entire audio track to match the average of all the tracks...or is
it more like compression, where the loud portions of a given track are
reduced in volume and the quieter portions are increased in volume?

The reason I ask is that I've been burning audio CDs for a few years,
but I've always used Cool Edit to manually set the volume of each
track by ear so they all match. This produces excellent-sounding
results, but takes a couple of hours. Today, I found NERO's normalize
function and tried it on a new CD I'm working on. While the normalizer
did a great job (and saved me alot of time and effort) by normalizing
all the tracks on-the-fly, I swear the sound of some (most?) of the
tracks sound compressed--with noticeably less punch and dynamics. Am I
hearing things, or do on-the-fly normalizers use compression (instead
of raising or lowering the entire track's volume level to match the
average of all the tracks in a given group)?

Posted by fred-bloggs on June 28th, 2003


freddydynip@yahoo.com (Fred Jones) wrote in
news:a071bfb3.0306271645.5f8162bf@posting.google.c om:

Normalising does not make the tracks the same volume, it gives them the
same PEAK value. If you want to match volumes of WAVs try WaveGain, but
you need to be careful that you don't turn the volume up so high you get
clipping.
http://rarewares.hydrogenaudio.org/files/wavegain.zip


--
fred


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