Same goes for me David with my i5 and issue 3.0.20
My SDR makes a grumbling stuttering noise when the number in the little box labelled “Audio” rises to 100s of milliseconds.
It seems to happen quite randomly when nothing else significant is running with CPU at 1% and GPU 29%.
The Audio figure will suddenly move up from 61mS to say 294% with the increase lagging the stutter.
After a bout of stutter the Audio drops back to 61mS or less..
I tried opening and closing applications but the audio number doesn’t change, but opening a website will make the Audio figure rise maybe 10mSec.
Basically, nothing I do causes the stutter to start… it just happens.
I also note that at random CPU will drop to 0.1%, GPU 17% and Audio 41mSec.
Very puzzling, but it doesn’t really bother me.
Allan G3PIY
--------------------------------------------------------------------------------
*From:*main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] *On Behalf Of *David Jackson
*Sent:* 01 April 2020 15:04
*To:* main@SDR-Radio.groups.io
*Subject:* Re: [SDR-Radio] Console V 3.0.21 freeze ups
I have an i7 3.4Ghz with an Nvidia GPU and 16Gb of ram and it locks/stutters/lags when I'm running 2 VFOs, VAC, WSJT-X and GridTracker.
It's not my power settings, it's not thermal throttling, it's not a lack of CPU, GPU or memory (all of that stays below 20% utilization).
It's not USB bandwidth, USB 3.0 ports all 'round for a max sample rate of 768Khz with an Airspy HF+.
This is a gaming laptop, it runs Unreal Engine 4 games 1920x1080 at 60fps so it's not my hardware, it's something in Console (I suspect the WASAPI
audio, I never really had a problem until I wasn't able to switch between WASAPI to the other option that was available but has been deprecated).
I've got an archive of previous SDR-Console V3 builds as far as January 2017, I should get scientific and load up whatever oldest rev supports the
HF+ and do some comparison testing. If anyone is interested in the older builds, I can make them available.

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Nick
Sent: 02 April 2020 04:29
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Console V 3.0.21 freeze ups

Checked all power settings, reinstalled API/ExtIO, checked screensaver settings, etc. All is normal. @Dennis, I only have a single instance of SDR Uno on my pc and directions were followed correctly when installed.  I appreciate everybody's replies.  I am out of ideas... This pretty much makes Console unusable for me, unfortunately, as I cannot foresee when the freeze up will happen.
--
R,
Nick
N6LPO

I tried Boost Priority but no luck, then increasing buffer from x2 to x4
still with no luck.
I looked at Task Manager, Resource Monitor and found Audiodg.exe suddenly
demanded a lot of CPU power when Outlook was opened and I highlighted an
email and selected Reply.
Once Audiodg.exe neared the top of processes using CPU power the audio
buffer rapidly filled up and SDR stutter started.
So is that the answer? Why would Audiodg.exe start using CPU when I
initially select reply to an email?
Once I'm replying to an email the buffer gradually drops to normal and
selecting another email then Reply does not result in Audiodg.exe using CPU.
Allan G3PIY
-----Original Message-----
From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf
Of jdow
Sent: 02 April 2020 00:40
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Console V 3.0.21 freeze ups
For grins and giggles: Tools->Options->Start check the "Boost priority...."
check box and restart the program. (Restart MAY not be necessary but let's
be
thorough.) Does this alter what happens any?
{^_^}

Thanks, jdow. Unfortunately, I found no solution to the issue there...
--
R,
Nick
N6LPO