A little similar experience points me in a different direction of looking
for a simple solution. I guess my first question is the origin of the audio
on the cassettes, specifically, are they true stereo? This description of
"exaggerated separation of the channels" sure rings like a lot of
poorly-done fake stereo LPs of the 1960s, i.e., put the basic signal in the
left channel and EQ the right channel with heavier bass or treble and delay
one track for "stereo effect." When I was young and foolish I created junk
like that from perfectly good mono sources, too. I've cleaned up a few of
those nasty LPs for my own enjoyment by isolating the better track and
flattening the EQ. Have you tried isolating the channels to see if each
sounds complete without the other? If that's the issue, it's a simple
matter to save the clear channel and chuck the other one.
Rodger Holtin (’72)
Host, Big Band Sounds
Saturdays 10-Noon (CT)
WFHU 91.5 The Lion - Listen Live!
From: Association for Recorded Sound Discussion List
[mailto:[log in to unmask]] On Behalf Of Chris Brady
Sent: Wednesday, October 21, 2020 7:34 AM
To: [log in to unmask]
Subject: [ARSCLIST] Delayed Channels on Cassette Tapes
We are digitising some cassette tapes using Audacity.. A batch of them are
stereo, however they have exaggerated separation of the channels (perhaps
they need normalisation?), and one channel is a microsecond behind the
other. We don't actually need stereo, amd have tried to merge the channels
into mono. But this sounds dreadful - the speech part sounds OK, but the
music is very 'echo-ie).
Another batch have delays from one channel to the other measuring in
seconds. How can we time-shift one channel to match the other one?
Thanks - Chris B.