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We have been successful in such circumstances and would be happy to give it a look. 

Send a link to 
[log in to unmask] and i’ll give it a go. 



Please pardon the mispellings and occassional insane word substitution I'm on an iPhone

> On Sep 14, 2020, at 23:38, Tim Gillett <[log in to unmask]> wrote:
> 
> I've been using the trial RX8 Wow and Flutter tool  on some old live
> classical oratorio  tape recordings  and have had no joy so far.
> There's no bias signal likely as they're very early paper tape
> recordings from around 1950 with nothing over 5 kHz recorded.  
> Beginning about half way through the tape, wow at about 2 Hz begins
> and increases in intensity till the tape's end.    
> 
> 50 Hz mains tone plus 100 Hz and 150 Hz harmonics are  recorded on
> the tape and  visible on the RX8 spectrum display. They show the
> beginning of the wow at about 2 HZ and eventually show the steady
> change in average frequency, plus the increasingly strong wow. I know
> such low Hz tones fall well short of the information available in bias
> tones but I can see them right there on the display. Even the 50 Hz
> tone is audibly and visibly modulated at 2 Hz.  I'd love to be able 
> to use these tones as a time base reference. Does anyone have success
> using mains tones and harmonics and know of software which can use
> such lower Hz tones?
> 
> Thanks Tim.
> 
>     
> 
> ----- Original Message -----
> From: "Association for Recorded Sound Discussion List"
> <[log in to unmask]>
> To:<[log in to unmask]>
> Cc:
> Sent:Mon, 14 Sep 2020 12:32:21 -0400
> Subject:Re: [ARSCLIST] Izotope RX8; recordings of FM broadcasts with
> multipath distortion
> 
> Hi, Karl,
> 
> You are correct that it works based on using the music itself as a 
> reference. It has complex algorithms that attempt to minimize the 
> reduction of vibrato as it stands. I'd love to have a relatively
> short 
> segment or three of music to try it on.
> 
> The challenge for me is much of the worst wow and flutter I come
> across 
> is on spoken word recordings and neither RX8 or Capstan can function 
> well with those as I understand it. Neither of those programs do what
> 
> Plangent can do.
> 
> Cheers,
> 
> Richard
> 
>> On 2020-09-14 12:05 p.m., Karl Miller wrote:
>> Related to RX 8...are there any opinions of the new feature to deal
> with pitch fluctuations and how it might be relative to capstan? I am
> concerned about music passages with vibrato.
>> Karl
>>> On Sunday, September 13, 2020, 08:12:13 PM CDT, Tim Gillett
>> <[log in to unmask]> wrote:
>> 
>> Hi Charles, Have you tried the suggestions around summing to mono?
> It
>> can work quite well, with few or no artifacts.
>> 
>> Tim.
>> 
>> ----- Original Message -----
>> From: "Association for Recorded Sound Discussion List"
>> <[log in to unmask]>
>> To:<[log in to unmask]>
>> Cc:
>> Sent:Sun, 13 Sep 2020 17:25:30 -0700
>> Subject:Re: [ARSCLIST] Izotope RX8; recordings of FM broadcasts
> with
>> multipath distortion
>> 
>> 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.
>> 
>> chuck
>> 
>> 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.
>>> 
>>> Cheers,
>>> 
>>> Richard
>>> 
>>> 
>>> 
>>> 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.
>>>> 
>>>> <L>
>>>> Lou Judson
>>>> Intuitive Audio
>>>> 415-883-2689
>>>> 
>>>>> 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
>>>>> recorded.
>>> 
>> --
>> Charles Reinsch
>> KRAB Archive: www.krabarchive.com
>> 
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>> 
> 
> -- 
> Richard L. Hess email: [log in to unmask]
> Aurora, Ontario, Canada 647 479 2800
> http://www.richardhess.com/tape/contact.htm
> Track Format - Speed - Equalization - Azimuth - Noise Reduction
> Quality tape transfers -- even from hard-to-play tapes.
> 
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