I'm having the digital clicking problem with no change to levels peaking at
-6 or so and sounding well in RX and awful when reducing the soundfile to
96/24 and, especially, to 44.1/16.
I'm working with classical 78s from the late 1920s and early 1930s. I need
to record at a lower level so when I equalize, there is substantial headroom
as there is sometimes 4 or 5 db of bass to add and I usually boost somewhere
at around 5.5 or 6K. These record don't go past 8K or so. The WE test
records don't go above this point (8300 on the English labels, since they
had to adjust for 50 cycles and 78 rather that 78.26 pllayback.)
Pre-monitoring a 20 sided 78 set when starting at side 1 is kinda
impractical. And s. 16 may hold a soprano high note surprise- had that
happen on the 1930 Sabajno Verdi Requiem, where it briefly surprised the
1930 recording engineers with the result that the brief moment of distortion
is baked in.
I usually know the pieces well enough to look for the loudest part but
sometimes those are artificially reduced and other places, where you
wouldn't expect it, the meters blossom.
From: Association for Recorded Sound Discussion List
[mailto:[log in to unmask]] On Behalf Of Lou Judson
Sent: Sunday, March 04, 2018 1:10 PM
To: [log in to unmask]
Subject: Re: [ARSCLIST] RX5, etc.
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!
On Mar 4, 2018, at 10:02 AM, Tim Gillett <[log in to unmask]>
> 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?