[78-L] Reversing audio (was: 78-L Digest, Vol 22, Issue 17, was Why I Hate LPs)

[David Lennick]

> Rob Spencer wrote:
> > On 7/11/2010 12:00 PM, Steve Barr wrote:
> > 
> >> A microgroove LP can often develop skips/sticks that arise from
> >> (presumably) groove damage...which is (1) invisible to the naked
> >> human eye...and (2) impossible to correct?!
> >> 
> > I had a skip of this type to deal with recently when dubbing a record. 
> > Happily, my phonograph has a reverse gear, and in reverse the record 
> > didn't skip. I then reversed the resultant file in my sound editor.
> >
> >
> > Rob Spencer
> 
> We had a session at ARSC in New Orleans which demonstrated that 
> reversing recordings digitally must NOT be done. They demonstrated how 
> a square wave turns into curicules and regular sound waves become almost 
> unrecognizable in comparison to the original. They might sound ok but 
> they aren't. Sound can be reversed in analogue with minimal problems, 
> but even there you can run into an absolute-phase issue if you are not 
> careful. But NEVER EVER reverse audio in the digital domain. 
> 
> Mike Biel mbiel at mbiel.com

 

Missing an important side issue here..did Rob prove that McCartney is dead once and for all?
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