I have a "DUMB" idea!! Has anyone considered discussing the audio issues
with the Audio Design Engineer at Ten Tec? Is this idea to "DUMB" to
mention or is the point is to have a topic that folks can hash, until it
turns into mush, like the O2 audio????????? Just asking!!
Ten-Tec, Inc., 1185 Dolly Parton Pkwy, Sevierville, TN 37862 USA
Contact Mon-Fri Eastern: Office/Tech (865) 453-7172 9 am-5 pm.
Repair (865) 428-0364 8-4. Sales (800) 833-7373 9 am-5:30 pm.
<html><DIV><FONT color=#009966>With appreciation(!!) </FONT></DIV>
<DIV><FONT color=#009966></FONT></DIV><FONT color=#009966>Very truly yours,
</FONT>
<DIV></DIV>
<DIV><FONT color=#009966></FONT></DIV><FONT color=#009966><IMG height=12
src="http://graphics.hotmail.com/emsmile.gif"; width=12>Brad Bradford<IMG
height=12 src="http://graphics.hotmail.com/emsmile.gif";
width=12></FONT></html>
>From: Mike Gorniak <mgorniak@genesiswireless.us>
>Reply-To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
>To: tentec@contesting.com
>Subject: Re: [TenTec] The Bug
>Date: Thu, 06 Apr 2006 09:01:47 -0500
>
>Martin,
>
>The most telling difference between V1 and V2 software, with respect to
>transmit audio quality, can be observed using an external receiver and
>an Audio Editing program such as Cool Edit or Adobe Audition.. Viewing
>the recovered waveform of normal speech on V2 reveals a distinctively
>clipped waveform that is very different from V1.
>
>No amount of input level manipulation or gain adjustment on the Orion
>can make it go away, which seems to indicate that this is happening
>someplace after the first audio amplification stage. Quantifying this as
>a "measurement" of some kind is a bit tricky, but I can assure you that
>the results are quite audible. For all of science's sophistication with
>measurement techniques, nothing accurately quantifies the audible
>effects of clipping. What IS known is that optimal interstage audio gain
>structure can completely eliminate it. As a general rule, an audio
>circuit will typically allow at least 10db of headroom between the
>nominal operating level and the clipping point. That number can vary
>considerably, depending on what the intended function of the circuit is
>and whether or not the dynamic range of the input audio has been
>modified prior to application.
>
>My guess is that we have an audio stage being run too close to it's
>clipping point. This audio stage is controlled in software, and is not
>user adjustable. The increase of sensitivity with respect to levels on
>both the microphone and auxiliary inputs seem to support this theory.
>
>73,
>
>Mike
>NM7X
> > -----Original Message-----
> > From: tentec-bounces@contesting.com
> > [mailto:tentec-bounces@contesting.com]On Behalf Of Martin, AA6E
> > Sent: Wednesday, April 05, 2006 9:03 AM
> > To: Discussion of Ten-Tec Equipment
> > Subject: Re: [TenTec] The Bug
> >
> >
> > I don't have an opinion about O2 sound vs O1 (V1) or O1 (V2), but I
>would
> > like to see measurements instead of comments like "not robust". I
>haven't
> > got a clue what robust sound is!
> >
> > 73 Martin AA6E
> >
> > On 4/5/06, Toby Pennington <toby423@earthlink.net> wrote:
> >
> >> I haven't heard a really good sounding O2 yet. OK, Yes, but not like
>the
> >> robust audio coming out of the V1 firmware on the Classic Orion. Toby
> >> W4CAK
> >>
> >>
> >>
> >
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