Richard and Lou,
Thank you very much for the ideas. You've given me back some hope for
these tapes. I was using RX7 spectral de-noise, but it was leaving too
much residual noise, and I couldn't push it further without losing
content and creating artifacts. It seems I need to be a bit more
adventuresome in my experimentation.
I have RX7 advanced, so the upgrade cost to 8 advanced is not too terrible
Will let you know if I am successful using what you have suggested.
find some non-destructive ways of
On 9/13/2020 1:48 PM, Richard L. Hess wrote:
> Hi, Lou,
> That is a good suggestion, but we already have an M-S thing going on
> as I explained in a previous email. All the noise is in the L-R
> channel which, unfortunately was mixed back into the quiet L+R channel
> when the stereo was demodulated in the tuner to make the tape
> recording. So, the act of summing L + R from the tape will act to
> cancel out the noise, but the balance between L + R will need to be
> tuned for minimum noise, as you know when you're trying to null
> things, 1-2 dB in level makes a big difference.
> I haven't thought what subsequent M-S processing might do, but that
> would put it back into L+R and L-R and might be another way of looking
> at the same thing...just attenuating the S channel would work the same
> as summing, but the match is critical in either case.
> On 2020-09-13 4:35 p.m., Lou Judson wrote:
>> I wonder if an MS treament would help with multipath - EQ the side
>> signal to reduce noise, bost the mid to compensate, then recombine. I
>> don;t have a sample to try this on but it has worked for me for
>> stereo noise in the past.
>> Lou Judson
>> Intuitive Audio
>>> On Sep 13, 2020, at 1:16 PM, Lou Judson <[log in to unmask]> wrote:
>>> FM multipath? Good question. Have you tried it in mono? Mono-ing the
>>> receiver cleans it right up, but I don’t now about after it is
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