All of the Raoul Pugno recordings of 1903 are afflicted with wow, thanks to
a badly calibrated turntable. It's a very fast effect, so it can be hard to
detect; it's more of a wobble:
The Victor of Part 2 of Ellington's Creole Rhapsody was mastered a little
off center, resulting in wow:
I have a UK Decca pressing of Ambrose's "Dodging a Divorcee" which really
has a problem in the last third.
On Sat, Feb 25, 2017 at 10:27 AM, Henri Chamoux <
[log in to unmask]> wrote:
> Hi Patrick,
> The following links reach a few recordings with a noticeable cyclic wow.
> They are late WW1 Perfectaphone records with nice labels displaying a Tommy
> and a French soldier. Among titles one finds The march of the Anzacs - For
> the Front - God save the King - La Marseillaise...
> All with a terrible wow. I have not tried anything so cannot say if they
> are challenging or not. Here they are:
> I can send complete files if you feel them as eligible as working base.
> Some very challenging wow can be heard on Paul Viardot Berliners such as
> this one: http://www.phonobase.org/7111.html
> Phonobase displays many other records with wow but many of them are not
> cyclic. They can be found by using the french word "pleurage" (aka "wow"):
> Henri CHAMOUX
> The many adventures of the Archeophone phonograph :
> Le 25/02/2017 à 15:47, Patrick Feaster a écrit :
>> For the past couple months, I've been working out a method of mitigating
>> wow in sound recordings by averaging the periodic logarithmic change in
>> peak frequency and locking to the result as a pilot tone. The results
>> been encouraging, but I'm having trouble finding "challenge" recordings to
>> experiment on. Can anyone point me towards some noteworthy examples of
>> recordings with conspicuous wow -- ideally wow that other techniques
>> haven't been able to fix satisfactorily, and recordings where it wouldn't
>> be unduly problematic for me to share "before" and "after" versions? The
>> only technical requirement is that the wow should be periodic. I'd be
>> grateful for some nice stumpers!
>> - Patrick Feaster