On Wed, 16 Mar 2005 13:39:44 +0100, Roland Praml wrote > Long time ago there were so called 'copy-bit killer' > Can I set the nonaudio with a similar circuit. Yes you can, it's a similar control bit. It was in an Elektor magazine a few years ago. Maybe you can modify the circuit. It was all done in hardware because of the high rate. > > As other mentioned this should also be done by a soundcard > by reading from spdif-in, set the bit, and writing to spdif-out I was thinking the same but it seems that a dsPIC is the only ( reasonable ) uController that can work in that high speed area. ( Unless the soundcard is equipped with such a feature. ) /Mel