Dudley,
Thank you for that info. I use the Heil PR-40 with Adobe Audition, Adobe
Premiere Pro, Cubase, and Skype. The PR-40 is such a great microphone, I
really like the idea of using it for ALL my audio work, including with
the Flex radio. Now that I'm getting the hang of the controls of the
Flex-3000, I've been told that the voice quality is great. But if this
becomes problematic, I could consider an XLR switch or use a different
microphone for a direct connection to the radio.
I'll spend some time tomorrow playing around with this. Can you confirm
that the headphones port on the front of the Flex 3000 with MON
activated samples at the very end of the audio chain? After I'm done
playing around, would you be available to meet me on an HF band and give
a quick listen to the sound quality I'm putting out?
Thanks for the help.
73
Bill Ackerman
KF5MTW
FlexRadio Support, Dudley Hurry wrote:
Bill,
You have added a bit of complexity to the audio chain and you might
not be monitoring the correct TX Audio meter..
Normally the mic is direct connected to the radio , not through the
computer and through the computer to the Soundmapper or soundcard then
using the VAC (minus the actual VAC program) through the VAC line
inputs.. The input line level is regulated with the TX gain control
in the VAC tab. You don't want to over drive your external ADC on
the input or the Direct Sound through the PC, but you can see the
Audio drive input level in the "Mic" setting in the TX Meter.
Also watch your ALC level in the same TX meter, both sould "Peak"
at or slightly less than "0" dbm.. These meters should not Peak
over "0" or you will be driving the SW DSP into distortion. On
the PR40 , the audio can get mussy in the 160 hz range if you get
closer than 4" .
Are you running external audio SW that you need to run the mic through
the computer?
73,
Dudley
WA5QPZ
FlexRadio Systems
(512) 535-4713, Option 2
Email: [email protected] <mailto:[email protected]>
Web: www.flexradio.com <http://www.flex-radio.com>
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Austin, TX 78728
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On Wed, Oct 5, 2011 at 4:05 PM, Bill Ackerman <[email protected]
<mailto:[email protected]>> wrote:
I have carefully followed the directions for Audio Gain
Distribution contained in this item:
http://www.mail-archive.com/flexradio%40flex-radio.biz/msg42531.html
I adjusted everything to the suggested readings with my face about
12" away from the microphone (Heil PR-40 through external A/D
converter into USB port of the PC, PowerSDR 2.2.3, VAC enabled,
Windows 7 Direct Sound driver).
Over the past few days, I have been told multiple times that my
signal is strong but my voice is very soft (????). When I move my
face to within an inch or two of the microphone, I am told the
readability is now great, even though the "Mic" TX meter is
bouncing up to +60 dBm. So I have been operating that way and it
seems to be working. It appears that the TX meter is not giving an
accurate reading for my particular configuration.
The only difference between what I am doing and the instructions
in the above link is that I am adjusting the TX Gain in the
Audio/VAC panel of the PowerSDR Setup rather than Mic level
control. It is possible that going through the Windows audible
drivers rather than directly into the Flex3000 could be making a
such difference in the TX meter?
Thanks for helping me understand what I am doing wrong.
73,
Bill Ackerman
KF5MTW
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