[linux-audio-dev] Using Jack for "Control Volt" continued

[Fred Gleason]

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                |
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|  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.        |
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