On Sunday 09 November 2003 03:11, Paul Winkler wrote: > Most audio circuits include "coupling" capacitors that block > DC voltages. Transformers work too. I would be amazed if any soundcard > will pass a DC voltage.
I know of at least one manufacturer (Digital Audio Labs, http://www.digitalaudiolabs.com/) that makes cards capable of this, although even there you need to set an internal jumper to enable it (default=DC blocked). I'm told that this is because their products are frequently used in general-purpose instrumentation setups, as well as strictly audio applications. Cheers! |-------------------------------------------------------------------------| | Frederick F. Gleason, Jr. | Director of Broadcast Software Development | | | Salem Radio Labs | |-------------------------------------------------------------------------| | Some people say a front-engine car handles best. Some people say a | | rear-engine car handles best. I say a rented car handles best. | | --P.J. O'Rourke | |-------------------------------------------------------------------------|
