Paul, I have dubbed lots of acetates (instantaneous discs) and the phono-EQ
curve is not predictable. I believe AES came about in about 1951, but NAB
was fairly widespread. But that's not so useful. You really have to try
things, including no curve.
On Mar 11, 2015 2:36 PM, "Tom Fine" <[log in to unmask]> wrote:
> I would think NAB or AES. See how that sounds. It'll be something in that
> ballpark if it's from the 1940s and it's not RCA or Decca.
> -- Tom Fine
> ----- Original Message ----- From: "Paul Stamler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, March 11, 2015 3:27 PM
> Subject: [ARSCLIST] De-emphasis for acetate discs?
> Hi folks:
>> What de-emphasis curve is a good choice for acetate discs? I have six 78
>> rpm sides by a gospel quartet here, recorded in 1946 at a local studio. The
>> discs are Presto, but of course that's no guarantee that the disc cutter
>> was also a Presto.
>> Anyway, I'm wondering what a good curve would be as a starting point?