Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 28 Oct 2002 13:03:18 -0600 (CST)
From:      Chris Dillon <cdillon@wolves.k12.mo.us>
To:        Dag-Erling Smorgrav <des@ofug.org>
Cc:        Soeren Schmidt <sos@spider.deepcore.dk>, Ronald G Minnich <rminnich@lanl.gov>, <"."@babolo.ru>, David Nicholas Kayal <davek@saturn5.com>, <freebsd-chat@FreeBSD.ORG>
Subject:   Re: Show me the light
Message-ID:  <20021028125820.I35504-100000@duey.wolves.k12.mo.us>
In-Reply-To: <xzpof9e4fb7.fsf@flood.ping.uio.no>

next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, 28 Oct 2002, Dag-Erling Smorgrav wrote:

> Chris Dillon <cdillon@wolves.k12.mo.us> writes:
> > On Mon, 28 Oct 2002, Dag-Erling Smorgrav wrote:
> > > Umm, if you do it right you get 8-bit (or 9-bit) mono.  You're
> > > limited to ~10 kHz though.  I have one of these babies lying around
> > > here somewhere; they were sold (ready-made and as kits) under the
> > > brand name Covox.
> > Sure, if you use a _real_ PCM DAC you can get 8-bit or better
> > resolution out of it
>
> You don't need a DAC, you just connect each data pin to the output
> through an appropriate resistor.  Google for "covox schematics".

Right, I know, thats exactly what I made.  I just realized I never had
any diodes in the thing, just resistors.  It was just a resistor
ladder.  You aren't getting 8-bit resolution out of that, though, and
it is not a PCM DAC.

--
 Chris Dillon - cdillon(at)wolves.k12.mo.us
 FreeBSD: The fastest and most stable server OS on the planet
 - Available for IA32 (Intel x86) and Alpha architectures
 - IA64, PowerPC, UltraSPARC, ARM, and S/390 under development
 - http://www.freebsd.org

No trees were harmed in the composition of this message, although some
electrons were mildly inconvenienced.



To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-chat" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20021028125820.I35504-100000>