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Re: [ARSCLIST] ARSCLIST Digest - NAB vs. DIN recordings

Hello Richard,
although my experience is not from North America but from Sweden, I thought you might be interested in what I found as regards Butterfly heads.

Between 2000 and 2003 I took part in a digitizing effort with Universal Music's archive here, and I quote from an article I prepared for IASA: "The Butterfly heads were predominantly CCIR (67%) while the full-track tapes were predominantly NAB (84%). The two-track recordings were more evenly distributed, with 47% CCIR and 51% NAB." (Eq that is)

This was from a selection of more than 4.300 tapes, mostly 1/4", recorded at 15 ips. For the two-track recordings, I don't know if they were Ampex or NAB "standard", since we had no way to measure such small differences. We did play back the full-track tapes with Butterfly heads and avoided that head for the two-track tapes. Our machines were Studer A812's.



Tommy Sjöberg
The Centre for Swedish Folk Music and Jazz Research
Stockholm, Sweden

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