Thanks, Dudley.
The audio buffer is already at 2048.
Here's some more information:
With pb-pal:
1. At a 192 KHz sample rate and 2048 buffer, I get lots of audio hits
when I turn On /either /ANF /or/ NR /or/ MultiRX.
2. I still get significant hits (although at a less frequent rate), if
I turn the Display Update rate down to 1 Hz.
3. At a 96 KHz sample rate and 2048 buffer, I get significant audio
hits if I turn On ANF /and/ NR, or ANF /and /MultiRX, even with the
Display Update rate turned down to 1 Hz.
With 1.18.4 svn 3432:
1. At a 192 KHz sample rate and 2048 buffer, audio sounds fine with
/both /ANF /and /NR turned On (even though the CPU utilization
percentage is up around 60-70%). I only start getting hits if I have
ANF /and /NR /and/ MultiRX all On. (And under this condition the CPU
utilization display freezes.)
For my PC, I'm using the Dell computer that I purchased from Flex when I
bought my SDR1K ('06?):
* Pentium 4 CPU, 3.02 GHz.
* 512 MB RAM
So, I'm wondering what might be the cause of this degradation in
performance and if there's anything I can do to fix it (either in my PC
(do I need more RAM? Or a new PC?), or in SW). Regarding the software,
apart from the addition of Pretty Betty and PAL, I don't know what else
has changed in the code and thus what might be contributing to this
problem -- changes in DttSP, for example? It's difficult for me to tell
from the SVN log, because I don't know if the changes logged for the
pb-pal development correlate exactly with the SVN log for the non-pb/pal
console, and I can no longer access the SVN log for the non pb/pal console.
- Jeff
Dudley Hurry wrote:
Jeff,
Not sure on the audio popping unless the added CPU load is causing so
additional delays, you may need to raise your buffer in the Audio
tab. You should not need to change the FW driver as the Audio tab
change should change the FW buffer, just like the sample rate is
controlled from PowerSDR.. Try raising the audio buffer slightly .
Also as the old saying goes for all Alpha code, " Your mileage may
vary!"
73,
Dudley
WA5QPZ
FlexRadio Systems
(512) 250-8595
Email: [email protected] <mailto:[email protected]>
Web: www.flex-radio.com <http://www.flex-radio.com>
"Tune in excitement!" ™
On Sun, Jan 10, 2010 at 11:37 AM, Jeff Anderson <[email protected]
<mailto:[email protected]>> wrote:
I've just downloaded and tried the pb-pal console. Very nice!
But, I'm having an issue with it, which is: when I click on the
MULTIRX button, I get significant popping and crackling which are
exacerbated whenever I move my mouse.
I notice that CPU percentage has jumped up about 10% points
between the Console I had been using (1.18.4, rev. 3432) and the
pb-pal console, and I was wondering...what features in this new
Console account for this increase in CPU usage? Does anyone know?
Thanks!
- Jeff
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[email protected]
http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz
This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for
posting topics related to SDR software development and experimentalist who are
using alpha and beta versions of the software.
