Thanks Richard, from you that is a compliment! Just Spectral Denoise in RX5 advanced. Just a simple try.With careful attention it could be a lot cleaner. (I have RX6Advanced, but had 5 open.)
I’m working on workshop tapes from Esalen 1974, recorded pretty poorly with distant mics, so I am deep into RX!
<L>
Lou Judson
Intuitive Audio
415-883-2689
On Jul 7, 2017, at 11:38 AM, Richard L. Hess <[log in to unmask]> wrote:
> Hi, Lou,
>
> I agree...nice cleaning job, by the way. What modules did you use? I tried De-crackle and Spectral De-noise but did not try them together, since you had already done a good job.
>
> I was wondering if it was actually some sort of sticky clinging during the recording...it almost sounds like Scotch tape being pulled off the roll, but same concept.
>
> Cheers,
>
> Richard
>
>
>
>
> On 2017-07-07 1:59 PM, Lou Judson wrote:
>> I thought I knew halfway through your first paragraph. It sounds as though it was recorded on a boom box or portable deck, and the creaky sound is the tape in the shell grinding against the edges. It also slows down the background whine at the same time (actually slowed the recording, so the pitch rises with the squeaks and drops between), so I’d say it was a badly rewound tape, and a recordist who did not pay attention (nor did they listen on headphones while recording, but, hey, it’s an amateur recording!).
>> Apparently it only happened while recording, not on playback.
>> I ran it through Izotope RX and here is the result on the first two creaks:
>> <https://www.dropbox.com/s/ryvrkj636z622ef/OralHistory_unexplained_sound%20RX.mp3?dl=0>
>> Easy fix!
>> <L>
>> Lou Judson
>> Intuitive Audio
>> 415-883-2689
>> On Jul 7, 2017, at 10:40 AM, Dave Radlauer <[log in to unmask]> wrote:
>>> Yes, I listened. And it sounds like a noise in the room. IMHO. Dave
>>>
>>> On Fri, Jul 7, 2017 at 10:34 AM, Timothy Wisniewski <
>>> [log in to unmask]> wrote:
>>>
>>>> Thanks for the suggestion, Dave. Have you listened to the sample? It's
>>>> more of an electro-mechanical type of stretchy/creaky sound, doesn't sound
>>>> like a rocking chair to me.
>>>>
>>>> On Fri, Jul 7, 2017 at 1:24 PM, Dave Radlauer <[log in to unmask]> wrote:
>>>>
>>>>> Rocking Chair?
>>>>>
>>>>> On Fri, Jul 7, 2017 at 10:10 AM, Timothy Wisniewski <
>>>>> [log in to unmask]> wrote:
>>>>>
>>>>>> Happy Friday, colleagues!
>>>>>>
>>>>>> I'm digitizing some oral history cassettes and I've come across a very
>>>>>> interesting sound on one of the tapes. This is a continual stretchy
>>>>> creaky
>>>>>> sound that occurs for about a half-second every 3 seconds. At first, I
>>>>>> suspected it to be a result of some variant of soft binder syndrome,
>>>> but
>>>>>> both baking and cold playback has had no effect at all on the sound.
>>>>> Also,
>>>>>> I am not hearing any "squeal" from within the cassette deck, only this
>>>>>> strange sound coming through the amplified playback. The tape is not
>>>>>> shedding oxide.
>>>>>>
>>>>>> After playing through the tape, I've discovered the sound occurs for
>>>> only
>>>>>> about 7 minutes in the recording, and begins immediately after a break
>>>> in
>>>>>> the recording. Also, the way the sound trails off when it stops seems
>>>> to
>>>>>> indicate to me something that was recorded inadvertently by the
>>>>> microphone,
>>>>>> perhaps a sound from the tape recorder itself. There is a subtle sort
>>>> of
>>>>>> "room presence" that the sound has at the very end occurring along
>>>> with a
>>>>>> sound like something being dropped. All of this has now has me thinking
>>>>> the
>>>>>> sound is something in the original recording rather than an artifact
>>>>> being
>>>>>> introduced during playback.
>>>>>>
>>>>>> The cassette is an off-brand, brown oxide variant. The original
>>>>> recording
>>>>>> is from 1975. Below is a link to a one minute sample, towards the end
>>>> of
>>>>>> the sound. Pay particular attention near the end of the sample when
>>>> the
>>>>>> sound trails off. If anyone has any ideas as to what this sound may
>>>> be,
>>>>>> I'd be most interested!
>>>>>>
>>>>>> https://jh.box.com/s/kvsaork509ckuo4h54v47cxappwve4aa
>>>>>>
>>>>>> Thanks,
>>>>>> Tim
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Timothy Wisniewski, M.L.I.S.
>>>>>>
>>>>>> Visual Materials Archivist
>>>>>> Alan Mason Chesney Medical Archives
>>>>>> Johns Hopkins Medical Institutions
>>>>>> 5801 Smith Avenue, Suite 235
>>>>>> Baltimore, MD 21209
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> cell and text# 510-717-5240
>>>>> www.JAZZHOTBigstep.com
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Timothy Wisniewski, M.L.I.S.
>>>>
>>>> Visual Materials Archivist
>>>> Alan Mason Chesney Medical Archives
>>>> Johns Hopkins Medical Institutions
>>>> 5801 Smith Avenue, Suite 235
>>>> Baltimore, MD 21209
>>>>
>>>
>>>
>>>
>>> --
>>>
>>> cell and text# 510-717-5240
>>> www.JAZZHOTBigstep.com
>>>
> --
> Richard L. Hess email: [log in to unmask]
> Aurora, Ontario, Canada 647 479 2800
> http://www.richardhess.com/tape/contact.htm
> Quality tape transfers -- even from hard-to-play tapes.
>
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