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? NAB? > > Peace, > Paul > >