Hi Ed-- I was trying to keep it all mono, with only two lines.
Maybe that isn't possible? I don't find a way to choose mono/stereo in
DigiPan.
Ed Wilson wrote:
You need to set the sampling rate to 48 KHz a total of four times,
Steve, both lines under Playback and both lines under Recording.
Ed, K0KC
------------------------------------------------------------------------
*From:* Steve Sterling <f...@sgsterling.com>
*To:* FlexRadio Reflector <FlexRadio@flex-radio.biz>
*Sent:* Mon, July 5, 2010 1:27:45 PM
*Subject:* Re: [Flexradio] Sampling Rate, VAC 4.09, and Windows 7
Back onto the original subject of this thread--
From the thread, I went and checked my VAC settings-- yep-- 44.2kbps
sampling rate. I can make QSOs, but people were sometimes having
troubles with what I send and report about -20db imd.
Setup: Flex 5K; SDR 1.18.6; Windows 7/64 bit; VAC 64; DigiPan
Following the thread advice, I got into Windows 7 and got the default
settings for the 2 lines set for 48K. I restart VAC (no programs can
be running to restart VAC), then carefully start SDR, then DigiPan.
PROBLEM: once everything is up, I go back into the VAC control panel.
The VAC line for receive audio is set for 48K just fine (audio from
SDR to DigiPan), and I noticed an improvement in receive quality. But
the VAC line for transmitted audio (DigiPan to SDR in transmit) is
still set for 44.2K. I've reverified a couple of times that the
default on both lines in Windows is 48K ("DVD Quality" as shown in
Windows).
Note: Watching VAC control panel through the startup sequence--
before SDR is started, both lines show disabled/not in use. Once SDR
starts and I am in digital mode, prior to DigiPan being started, the
receive audio line activates at 48K, but the transmit audio line still
shows disabled/not in use. When I then start DigiPan, the transmit
audio line activates, but only at 44.2K. Also, my transmit audio
spectrum shows a 2nd harmonic component that is only 40-50db down from
the fundemental.
Any ideas?
By the way, without this reflector I'd never have known there was a
issue. The reflector is very valuable.
Steve WA7DUH
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