[78-L] Waveforms - Waveschmorms?

[Wes]

Malcolm,
The waveform shape will depend on the recorded material - something like a
flute will generally give you a fairly symmetrical waveform, but reed and
brass are more asymmetric.

As long as your stereo waveforms are continuously either in-phase or
antiphase throughout your cleanup files, that's perfectly OK. If not, there
was a recording fault. You don't need differently wired cartridges for
vertical and lateral recordings for transcription/cleanup if your software
lets you invert one of the stereo channels. As long as your final stereo
file has channels in-phase before converting to mono, you'll be on the right
path, and get that extra little bit of noise reduction.

Now please let me go back to lurking :) .. wes williams

From: Malcolm Rockwell <malcolm at 78data.com>
Subject: Re: [78-L] Waveforms - Waveschmorms? [was Waveforms]
To: 78-L Mail List <78-l at klickitat.78online.com>

I too have sometimes noticed this odd waveform configuration when doing 
cleanups of 78s. It's kind of rare; most samples are fairly symmetrical. 
Another thing that interests me is why some transfers in stereo, of mono 
material, show the 2 waveforms in lock-step while others are 180 degrees 
out of phase. Or could it just be one of my regular cartridges is wired 
that way? I only have one of those and make a point not to use it unless 
I'm transferring Pathe or Edison discs.
More investigation is needed on my part, I think.
Malcolm