Re: LP (vinyl records) ripping?

peter wrote:

My family has about 2 dozens LP (about 30 years old) that has no
equivalent available on CD.

Not a lot of an issue.

Furthermore, those records have become
moldy because they were stored in a high humidity area.
I cleaned those mold with tap water (also tried dish
detergent and rubbing alcohol

Just what IS rubbing alcohol, sounds poorly defined to me? - anyway, make
the wash a two stage event: first water + detergent, then water + a bit of
mild acid. You will not only get rid of calcium residue from the water or
from previous cleanings, you will also gain that the remaining water
releases its grip on the vinyl. Remaining water is then easy to wipe off
with a dab of pure isopropylic alcohol on a fluffy well washed, no magic
ingredients, towel.

; didn't do much better than just water alone).

Water is the universsal solvent. It has a leading role in a science fiction
short story because of just that property.

Most of the
mold were washed off, but some albums have strange tiger-strip
patterns left behind wherever the cover plastic bag touches the album.

Molds eat anything, there is probably also one that eats vinyl.

Also, when playing the albums, dust noise is a big issue.

Whaddaya mean, dust noise, nah .... surface noise, calcium deposits comes to
mind. Or - worst case - that the vinyl has become pitted because it is -
uh - eaten.

I recorded in stereo even though the records are mono,
because noise is not the same on both channel. This can
be useful in post processing.

Yes. Auditions center channel extract with slightly tweaked settings can
then save the day.

Using goldwave/audacity I was able to use their pop filters to reduce
some of the noise. Adding and averaging the two channels further
reduces the noise. But still a lot of noise is left. I also have
access to adobe audition and will try using that as well.

That's the one you need for this.

I have an idea for pop filter that I wonder if anyone has implemented.
Basically, detecting dust noise is not hard -- usually it is a spike
that goes all the way to 0 db level.

That is not dust noise, that is A click. They are easy to identify and only
rarely more frequent than to allow you to fix single click, in Audition ex
works favourites "fix transient".

I'm looking for advice on cleaning (I'm going to try ultrasonic
cleaner next)

Could be a good idea, never tried one. Make it two stage as per above.

, recording, and post processing. Is this the proper NG
or is there a more focused discussion elsewhere?

You have come to the right place.


Kind regards

Peter Larsen





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