Bob Hart
April 23rd, 2014, 06:39 AM
Sooner or later I am going to have to de-echo some Nagra tapes and some 16mm magnetic tracks which have been stored both tail-out and head-out.
I am familiar with Cool Edit Pro and vaguely familiar with Adobe Audition which is where Cool Edit went.
Does anyone have any handy clues. Print-through is a cyclic echo of soundtrack which occurs when signal on a tape reproduces itself on the neighbouring layer of the tape during storage. Storing the tape tail-out mitigates the effect to a less offensive trailing echo.
Unfortunately, the period of the echo shortens ever so slightly with each turn of the spool as the diameter of the roll decreases so a simple automated correction loop would drift out of sync. But in the years hence, someone may have wrought a miracle cure.
Slightly off-topic, in the days of mass-duplication of movies onto VHS and Beta rental tapes, there was an effort to develop the "print-through" phenonema as a high speed duplicating process similar in very general principle to contact printing with film.
It was sought to be an alternative to banks of recording decks and the labour involved in changing all the cassettes out with each real-time duplication run.
It turned out to be a research dead-end.
I am familiar with Cool Edit Pro and vaguely familiar with Adobe Audition which is where Cool Edit went.
Does anyone have any handy clues. Print-through is a cyclic echo of soundtrack which occurs when signal on a tape reproduces itself on the neighbouring layer of the tape during storage. Storing the tape tail-out mitigates the effect to a less offensive trailing echo.
Unfortunately, the period of the echo shortens ever so slightly with each turn of the spool as the diameter of the roll decreases so a simple automated correction loop would drift out of sync. But in the years hence, someone may have wrought a miracle cure.
Slightly off-topic, in the days of mass-duplication of movies onto VHS and Beta rental tapes, there was an effort to develop the "print-through" phenonema as a high speed duplicating process similar in very general principle to contact printing with film.
It was sought to be an alternative to banks of recording decks and the labour involved in changing all the cassettes out with each real-time duplication run.
It turned out to be a research dead-end.