version 2.0.968

[SparkSDR]

Hi Group,

here is a new test version for windows

https://www.sparksdr.com/download/SparkSDR.2.0.968.win64.zip

I released it in another thread to see if it would fix an audio problem as it no longer uses portaudio. It also has a number of other tweaks:-

Audio L/R balance added.
Experimental FreeDV mode (enable experimental features to use this).
Caret shown on frequency display in dark theme.
NFM bug, that occasionally caused noise reduction to fail, fixed.
tx offset added to ssb,am and cw.

73 Alan M0NNB

[Thomas Beiderwieden]

Hi Alan,

as I am currently struggeling with audio on my Raspberry, would you mind to compile a Raspberry 32Bit version, so I can test, if that is the root cause?

vy 73 de Thomas, DL3EL

[Jim Ancona]

I'm dealing with choppy audio on an Intel laptop running Linux Mint 21.2 (64-bit). (Audio works fine when the same machine is running Windows, so it's not a hardware issue.) So I'm interested in giving it a try as well.

Jim

N1ADJ

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[SparkSDR]

Hi Jim and Thomas,

this work is a step towards investigating the linux audio issues but I'm sorry it won't fix them right now.  I have made it easier to move away from using portaudio to using more direct access and started on windows as I already had some experimental code, if portaudio proves to be the issue this lets me plugin alternative code more easily . I'm not sure what is happening on linux, it maybe higher cpu usage of the user interface by Avalonia which I'm also looking at.  I don't get choppy audio on on rpi or an old linux laptop so am struggling to solve this. Has the audio got worse for you both since 2.0.33?(sorry if I've asked before)

73 Alan M0NNB 

[SparkSDR]

Hi Alan,

I am currently facing the problem, that I do not have any sound output via my (external) soundcard from SparkSDR. SparkSDR works currently only with the audio jack. VLC ie works with the soundcard.

I am running 2.0.966. As 2.0.33 is about a year old, is it safe to reinstall it over 966 for a test? My gut feeling is, that the audio has not changed to bad over the last 12 months, however still wondering, where this problem may come from.

vy 73 de Thomas, DL3EL

[ahop...@googlemail.com]

Hi Thomas,

just a thought, it might be worth seeing if installing a more recent version of portaudio solves it.

73 Alan M0NNB

[Thomas Beiderwieden]

Hi Alan,

will try. Could you point me to a location, where I can get it. All I could find is something on github, which requires local compilation. I normally try to avoid this because of negative experience with dependencies.

vy 73 de Thomas, DL3EL

[K H]

Hello Alan,

In my situation malware warning occures when installing win64 so would you please relase win32 version if you could.

73 and thank you as always.

ja9mat Hidehiko.

[ahop...@googlemail.com]

Hi Thomas,

I build it from github and the instructions here  PortAudio: Building Portaudio for Linux you may be able to use apt-get to get a newer version, it is just a shot in the dark.  Is your external sound card listed by spark?

73 Alan M0NNB

[ahop...@googlemail.com]

Hi Hidehiko,

what gives you the warning? It would be better to sort that out than fall back to the 32 bit version.  At some point I'm going to have to stop development of the 32 bit version as support for win 7 is being dropped by some of the software libraries I use.  That being said I will release for all platforms soon.

73 Alan M0NNB

[K H]

Hi Alan,

The warning appears when just clicking the URL link. I'm using Win11 and AVG Antivirus Free. And the  message says that the URL set to the black list of AVG. But the 32bit version can be downloaded with no issue until now.

I can set that URL as an exception but I would rather not to do that.

You're right. I understand your opinion about 32 bit version's future. So if there is not a solusion I have no choice but to set the exception.

Thanks, JA9MAT Hidehiko.

[ahop...@googlemail.com]

Hi Hidehiko,

thanks for that, I shall try and sort it out with AVG.

73 Alan M0NNB

[ahop...@googlemail.com]

Hi Jim,

this https://www.sparksdr.com/download/SparkSDR.2.0.971.linux-x64.deb tweaks a portaudio setting on intel linux in the hope it solves your issue, I hope it does but I wonder if something else is going on. Very keen to get feedback.

73 Alan M0NNB

[Jim Ancona]

Unfortunately I'm away from my HL2 for the next few weeks. I'll check when I get back, but I hope someone else can give you feedback sooner.

Jim

N1ADJ

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[Jim Ancona]

I returned home from my trip and gave 2.0.971 a try. Unfortunately, the problem still occurs. It doesn't happen all the time, but I can't figure out what triggers it, although changing PulseAudio inputs and outputs seems to be involved. Once it happens, I get dropouts and distorted audio. Restarting the  PulseAudio daemon with "pulseaudio -k" seems to fix it, at least temporarily. In writing this, I realize that this sounds like a PulseAudio problem on my machine, and I'm totally willing to believe that's the case, But I'm unable to reproduce the issue when playing audio from my web browser. In any case, let me know if there's any other testing or log collection I can do.

Jim

N1ADJ

[ahop...@googlemail.com]

Hi Jim,

I notice PulseAudio support was added to PortAudio (PortAudio/portaudio: PortAudio is a cross-platform, open-source C language library for real-time audio input and output. (github.com)) a couple of weeks ago, it might be worth trying, it should give more audio options and if we are very lucky might have bug fixes that help.

I am pondering replacing PortAudio with direct support for PipeWire but I'm not sure if this will cause problems for users of some distros.

73 Alan M0NNB