http://www.celemony.com/cms/index.php?id=capstan

For over 100 years, music has been recorded on mechanical storage
mediums, and for over 100 years such recordings have been plagued by
the same problems: wow and flutter. Who isn't familiar with the
wobbling and warbling, the droning and dragging? Mechanical
degradation caused by defective devices or sticking tapes, by aging
or defective storage. Furthermore, wow and flutter were for the most
part irremediable.

Countless recordings of renowned orchestras, big bands and rock
groups are currently slumbering deep in archives because precisely
this problem has rendered them unusable. The tapes worthless, the
recordings lost to posterity. Until now.

For with Capstan there is now for the first time a program capable
of removing wow and flutter from musical recordings -- whether on
tape, compact cassette, wax, shellac or vinyl. Capstan detects wow
and flutter by analyzing the musical material itself, so the medium
is of no relevance. In this, Capstan is clearly superior to solutions
such as bias tracking, because Capstan still works even if the tape
has already been copied several times or digitized only in low
resolution.

Being musically intelligent, the Capstan algorithm is capable of
recognizing not only the minutest amounts of wow and flutter but also
continuous speed variations within the musical material itself and
makes possible detailed editing that extends even to drawing in the
curve manually. It is based on the patented DNA Direct Note Access
technology made famous by the award-winning program Melodyne, which
is used worldwide in all major studios for the editing of pitch and
timing.

Whilst the precise detection of the wow and flutter represents the
actual technological revolution, repairing the recording is easy: the
musical material is simply played back with the velocity curve
inverted. Pure varispeed -- guaranteed free from artifacts.

Download File Size:29.65 MB

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