By "normalizing," do you mean downsampling to 44/16? That term, in my
understanding means looking at a bunch of diverse tracks and making them
all appear to be at the same level.
Whatever is happening, look at the version that has the distortion at
climaxes in the "waveform" view,in Izotope RX. Look in the lower LH corner
in Izotope RX, at the slider that moves between "waveform" and
"spectogram." If you put the slider in the middle, it superimposes the
waveform over the spectogram view (in my settings, this appears as light
blue for waveform and yellow for spectogram). You can see in waveform view
whether the peaks are exceeding the digital envelope--and the level meters
below the picture will show it going "into the red." The solution is
simple. Just lower the overall level until the peaks are within the
envelope (what you are looking at). Izotope is very good about "bringing
it back" (the waveform) to what it should be without flatting the peaks,
unlike some programs. If the peaks appear flattened, repair them with the
tool that is there for that.
Best,
John
.
On Sun, Mar 4, 2018 at 1:10 PM, Lou Judson <[log in to unmask]> wrote:
> It is also possible that the clipping sounds are from overloading the D/A,
> whilst the waveform is okay. It is called “intersample peaks” and one
> reason I avoid normalizing. Try normalizing to -1 or -2 and see if it still
> sounds bad. Or, as I said, use a look-ahead limiter, again instead of
> normalizing!
> <L>
> Lou Judson
> Intuitive Audio
> 415-883-2689
>
> On Mar 4, 2018, at 10:02 AM, Tim Gillett <[log in to unmask]>
> wrote:
>
> > The crackling noises after normalising sound like clipping. You could
> visually inspect (by magnifying) the waveform peaks both before and after
> normalising. Have you tried normalising but minus a few db's?
> >
> > Tim
>
|