Search found 43 matches

by W9IP
Sat Feb 11, 2023 7:32 pm
Forum: Digital ("Virtual") Audio
Topic: VAC & ASIO Under/Overflows
Replies: 22
Views: 6977

Re: VAC & ASIO Under/Overflows

To close out the saga, I hooked everything up in its original configuration including all three Ethernet switches. Without firewall it is rock-solid, with the firewall, it's unstable as before.
Thanks to everyone,
W9IP
by W9IP
Sat Feb 11, 2023 5:07 pm
Forum: Digital ("Virtual") Audio
Topic: VAC & ASIO Under/Overflows
Replies: 22
Views: 6977

Re: VAC & ASIO Under/Overflows

Surprising result... My hypothesis said that the three network switches inline from Angelia to Thetis were introducing instability that caused over/underflows in the audio stream. This despite GPS-disciplined synchronization for the time domains at each end. To test the hypothesis, I set up the foll...
by W9IP
Fri Feb 10, 2023 11:57 am
Forum: Digital ("Virtual") Audio
Topic: VAC & ASIO Under/Overflows
Replies: 22
Views: 6977

Re: VAC & ASIO Under/Overflows

Scott - Thanks for explaining. I wasn't sure which control panel was intended. I had set everything to 16-bit/48000 long ago as per your tutorial.
W9IP
by W9IP
Fri Feb 10, 2023 2:42 am
Forum: Digital ("Virtual") Audio
Topic: VAC & ASIO Under/Overflows
Replies: 22
Views: 6977

Re: VAC & ASIO Under/Overflows

KC2RGW... could you elaborate a bit on "Also double check Control Panel and set all the busses to 48k 24 bit if you haven’t." I'm not especially fluent with Voicemeeter.
Michael
by W9IP
Fri Feb 10, 2023 2:39 am
Forum: Digital ("Virtual") Audio
Topic: VAC & ASIO Under/Overflows
Replies: 22
Views: 6977

Re: VAC & ASIO Under/Overflows

Scott - regarding your question, "Why are you not routing the Thetis virtual channel to both the WSJT-X and Map65 channels?" Map65 gets its I/Q feed from a UADC4 via Linrad and the network.
by W9IP
Fri Feb 10, 2023 2:35 am
Forum: Digital ("Virtual") Audio
Topic: VAC & ASIO Under/Overflows
Replies: 22
Views: 6977

Re: VAC & ASIO Under/Overflows

Here are my Thetis settings. This instance has been running for an hour or so and has settlled down nicely after the first five minute of thrashing.
I will examine my VM setup in the morning; thank you for your observations and comments.
by W9IP
Fri Feb 10, 2023 1:45 am
Forum: Digital ("Virtual") Audio
Topic: VAC & ASIO Under/Overflows
Replies: 22
Views: 6977

Re: VAC & ASIO Under/Overflows

Here are the images...
by W9IP
Thu Feb 09, 2023 6:59 pm
Forum: Digital ("Virtual") Audio
Topic: VAC & ASIO Under/Overflows
Replies: 22
Views: 6977

Re: VAC & ASIO Under/Overflows

Scott, sorry, my wording was poor. I know to always keep the main buffer in Thetis the same as in the ASIO driver. I meant that the main buffer had to be big in order for the VAC loop to be reasonably stable. After a number of warm and cold starts, stability is elusive. Sometimes VAC settles down in...
by W9IP
Wed Feb 08, 2023 11:37 pm
Forum: Digital ("Virtual") Audio
Topic: VAC & ASIO Under/Overflows
Replies: 22
Views: 6977

Re: VAC & ASIO Under/Overflows

I posted too soon... After a couple of hours, the Over/Underflows converged to zero. A restart (with Audio/Advanced/Old VAR checked) resulted in only a few glitches at first, followed by settling to zero within 5 minutes. Maybe my initial instability was due to an obsolete VAR from pre-Presonus?
by W9IP
Wed Feb 08, 2023 11:13 pm
Forum: Digital ("Virtual") Audio
Topic: VAC & ASIO Under/Overflows
Replies: 22
Views: 6977

VAC & ASIO Under/Overflows

Dear friends, After reading the "Thetis 2.8.11-21+++ VAC advanced controls: results and discussion" thread a couple of times, I purchased a Presonus 192 Mobile USB audio interface in the hope that it would be more stable than my previous Behringer UMC204HD. I hooked up a Leo Bodnar GPSDO @...
by W9IP
Mon Jan 30, 2023 2:39 pm
Forum: Thetis
Topic: Turn off AGC altogether?
Replies: 4
Views: 978

Re: Turn off AGC altogether?

Perfect, thanks to both of you.
by W9IP
Mon Jan 30, 2023 12:08 pm
Forum: Thetis
Topic: Turn off AGC altogether?
Replies: 4
Views: 978

Re: Turn off AGC altogether?

Do you mean Setup/DSP/AGC-ALC/"Fixed Gain (dB)?
by W9IP
Mon Jan 30, 2023 3:26 am
Forum: Thetis
Topic: Turn off AGC altogether?
Replies: 4
Views: 978

Turn off AGC altogether?

Dear friends,
Is it possible to turn off AGC altogether in Thetis? I do EME and it is useful to measure signal levels at audio where AGC just gets in the way. Note: I'm not asking about turning off "auto AGC gain mode" (which is so redundant.)
Thanks,
W9IP
by W9IP
Tue Jan 10, 2023 2:45 am
Forum: Digital ("Virtual") Audio
Topic: Thetis 2.9.0.6, ASIO, and VM Potato with WSJT-X & Map65
Replies: 2
Views: 2836

Re: Thetis 2.9.0.6, ASIO, and VM Potato with WSJT-X & Map65

As usual, your explanation and suggestions were spot on. Thank you for taking the time to reply. I now have WSJT-X and Map65 routed through Voicemeeter and then to Thetis. The second part (Voicemeeter-Thetis) is ASIO which is exactly what I needed to do.
Thanks!
by W9IP
Mon Jan 09, 2023 9:58 pm
Forum: Digital ("Virtual") Audio
Topic: Thetis 2.9.0.6, ASIO, and VM Potato with WSJT-X & Map65
Replies: 2
Views: 2836

Thetis 2.9.0.6, ASIO, and VM Potato with WSJT-X & Map65

Dear friends, In an effort to reduce TX latency, I would like to use ASIO drivers with Voicemeeter Potato. I have previously "wired" all the software in the title using MME and/or VM's Audio Cables. ASIO in contrast has proven to be frustrating. In order to expose an ASIO driver, I plugged...
by W9IP
Thu Dec 01, 2022 3:33 pm
Forum: Thetis
Topic: Font size and Thetis crash
Replies: 4
Views: 1068

Re: Font size and Thetis crash

Surprisingly, 150% works OK; it's just 125% font enlargement that causes Thetis to crash on start-up under Windows 7. Weird.
by W9IP
Thu Dec 01, 2022 3:27 pm
Forum: Thetis
Topic: Font size and Thetis crash
Replies: 4
Views: 1068

Re: Font size and Thetis crash

I don't see any options for font size in Thetis either. That wasn't my original complaint, however. I had changed font size in Windows 7 and now Thetis won't launch. Scott... Yes, Thetis seems to run fine on Windows 10 with enlarged Windows fonts. It's Windows 7 that is the problem.
W9IP
by W9IP
Mon Nov 28, 2022 10:34 pm
Forum: Thetis
Topic: Font size and Thetis crash
Replies: 4
Views: 1068

Font size and Thetis crash

Dear friends, My eyes asked me to enlarge the fonts in Windows 7. I did so by right-clicking on the desktop, selecting Screen resolution, then "make text and other items larger or smaller." I left the screen resolution unchanged but increased font size to 125%. Now, if I launch Thetis, it ...
by W9IP
Sun Nov 13, 2022 5:47 pm
Forum: Thetis
Topic: Stop waterfall during TX?
Replies: 1
Views: 704

Stop waterfall during TX?

Dear friends,
Is it possible to stop the waterfall during TX periods so that it doesn't end up with periodic horizontal smear-bars?
Thanks,
W9IP
by W9IP
Thu May 05, 2022 12:32 pm
Forum: Digital Mode, Rig Control & Logging Software
Topic: Two Thetis 2.9.0 CAT-related questions
Replies: 3
Views: 1347

Re: Two Thetis 2.9.0 CAT-related questions

Yes, I read that topic prior to posting my question. In my question, "new" = ver 2.9 to which I see no reference. I'll dig into the source code for now.
W9IP
by W9IP
Thu May 05, 2022 12:13 pm
Forum: Digital Mode, Rig Control & Logging Software
Topic: Two Thetis 2.9.0 CAT-related questions
Replies: 3
Views: 1347

Two Thetis 2.9.0 CAT-related questions

Dear friends,
1) Is there a summary of the new CAT commands?
2) Is it possible to read the current noise floor value via CAT?
Thanks,
W9IP
by W9IP
Fri Feb 04, 2022 9:40 pm
Forum: Thetis
Topic: What do these values represent?
Replies: 3
Views: 1430

Re: What do these values represent?

Oh, I see. I didn't find mention of this in the manual.
Thanks!
W9IP
by W9IP
Fri Feb 04, 2022 2:01 pm
Forum: Thetis
Topic: What do these values represent?
Replies: 3
Views: 1430

What do these values represent?

Dear friends,
What do these values tell me?
ThetisValues.jpg
ThetisValues.jpg (20.09 KiB) Viewed 1430 times
by W9IP
Tue Jan 18, 2022 9:23 pm
Forum: Thetis
Topic: How does the RX attenuator work?
Replies: 2
Views: 1158

Re: How does the RX attenuator work?

Scott -
Thank you for (another) clear explanation.
73,
W9IP
by W9IP
Tue Jan 18, 2022 8:29 pm
Forum: Thetis
Topic: How does the RX attenuator work?
Replies: 2
Views: 1158

How does the RX attenuator work?

Dear friends, I am having trouble understanding how the drop-down RX attenuator works. I would expect that adding attenuation would lower RX levels; this is how an external (physical) attenuator works. You add a 10 dB attenuator to the RX input and all received signals are reduced by 10 dB. In Theti...
by W9IP
Tue Dec 28, 2021 3:34 pm
Forum: Thetis
Topic: Thetis: RX1 & RX2 without diversity?
Replies: 5
Views: 1927

Re: Thetis: RX1 & RX2 without diversity?

Image
by W9IP
Tue Dec 28, 2021 12:27 pm
Forum: Thetis
Topic: Thetis: RX1 & RX2 without diversity?
Replies: 5
Views: 1927

Re: Thetis: RX1 & RX2 without diversity?

When playing with Setup/General/ADC as suggested, I find that only Protocol 1 ADC assignments have any effect. Protocol 2 assignments, nothing. I'm running Thetis v2.8.11 (10/20/20) and an Angelia board with v. 5.4 firmware which I believe is Protocol 2. Am I overlooking something?
W9IP
by W9IP
Fri Dec 24, 2021 1:16 pm
Forum: Thetis
Topic: Thetis: RX1 & RX2 without diversity?
Replies: 5
Views: 1927

Thetis: RX1 & RX2 without diversity?

Dear friends, Thetis v2.8.11 with Angelia Is it possible to receive RX1 and RX2 without invoking Diversity? If I just click the RX2 button on the main screen, Thetis shows a second screen that displays a duplicate of RX1, which isn't useful. The only way I have found to display separate inputs is wi...
by W9IP
Fri Nov 06, 2020 10:45 pm
Forum: Diversity Operations (PowerSDR & Thetis)
Topic: OpenHPSDR Diversity... what is "gain?"
Replies: 1
Views: 4382

OpenHPSDR Diversity... what is "gain?"

Dear friends,
What does the value in the Diversity/Reference Source/"Gain" spin box mean? relative gain in dB? or a numerical ratio?
Thanks
Michael, W9IP
by W9IP
Wed Oct 21, 2020 10:34 am
Forum: PowerSDR mRX
Topic: What does "Use RX2" do?
Replies: 1
Views: 2548

What does "Use RX2" do?

Dear friends,
In Setup/Audio/VAC1, Direct I/Q box, what does "Use RX2" do?
Michael

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