From owner-freebsd-questions Wed Nov 25 21:39:36 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id VAA27256 for freebsd-questions-outgoing; Wed, 25 Nov 1998 21:39:36 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from isua4.iastate.edu (isua4.iastate.edu [129.186.1.204]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id VAA27250 for ; Wed, 25 Nov 1998 21:39:33 -0800 (PST) (envelope-from graphix@iastate.edu) Received: from localhost (graphix@localhost) by isua4.iastate.edu (8.8.5/8.8.5) with SMTP id XAA22064 for ; Wed, 25 Nov 1998 23:39:25 -0600 (CST) Message-Id: <199811260539.XAA22064@isua4.iastate.edu> To: freebsd-questions@FreeBSD.ORG Reply-To: kent@iastate.edu Subject: Sound card as a cheap DAC Date: Wed, 25 Nov 1998 23:39:25 CST From: Kent Vander Velden Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi. Can a sound card such as the SoundBlaster 64 Gold be used as an inexpensive DAC? My goal would be to vary a voltage source under computer control. I have tried to send a string of values into /dev/audio and watch the response on an o-scope. I only seem to see changes when the values going into /dev/audio are changing. This makes me question my understanding of a sound card. Anyone have experience in this area? Thanks. --- Kent Vander Velden kent@iastate.edu To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message