Hi, 2007/7/7, Udo Bachernegg <[EMAIL PROTECTED]>: > but i read that they use a 40bit digial > timecode which is amplitude modulated > on a 1200Hz carrier. but which digital encoding is used? some sort of > cyclic code or blockcode? > (40bits sounds like a lot af redundancy)
I started to explain how positions are encoded with final-scratch timecoded vinyl. You can have a look to this document (in the page related to timecode): http://www.digital-scratch.org/documentation/20060207-dscratch_presentation/20060207-dscratch-presentation.pdf Otherwise, you are right, it's a 1200Hz sinusoidal signal (dephazed to detect direction, and amplitude modulated to detect position). Hope that will help. Regards, Julien. _______________________________________________ Dscratch-dev mailing list [email protected] https://mail.gna.org/listinfo/dscratch-dev
