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Old 05-20-2020, 04:57 PM   #16
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Hey yet again, Phil.

Well, I installed and tested MuseScore on my other system. This is a computer on which I have the same Linux distro running, but with the standard (non-realtime) kernel and PulseAudio installed (I need it for bluetooth audio applications).

MuseScore fires up by default using the PulseAudio sound environment, and works fine. I tested it out with both other available options (PortAudio and ALSA) and it also works fine. Obviously when I tested the JACK option, the play button was greyed out since JACK is not installed on this computer. When I say it worked fine, all I mean is that I plugged a series of random notes onto an empty staff page and played it back - no instrument selection or any other specs. I just wanted to see if there was any sound corruption.

So bottom line, it seems to work as expected after a clean install on my machines.

This leads me to wonder if the upgrade process from version 2 to 3 on your system has perhaps left MuseScore in an imperfect state. You may want to try a clean install. To do this :
  • Back up all your data files and any other saved information
  • Uninstall completely your current MuseScore install (with the exception of your previously backed up data files ....)
  • Reboot Linux
  • Install a fresh copy of MuseScore
  • Reboot Linux
  • Fire up MuseScore, load one of your existing scores and see how the sound plays back.
... If all this still doesn't improve anything, I'm at a bit of a loss, software-wise. My initial suspicion of PulseAudio causing issues was not borne out in my test case ...

Next order of business, along the lines of what Shadow7 suggested, would be to look at hardware. My understanding of your system is that it is self-contained, i.e. everything is internal. You DO, however, have two soundcards. My next troubleshooting step would be to remove the PCI Soundblaster Audigy and see how MuseScore reacts with just the onboard NVidia chip.

Let us know how you make out, should you decide to try this.

Cheers !

Old 05-21-2020, 04:05 AM   #17
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Registered: Jun 2019
Location: Sunderland, England
Distribution: Linux Mint on the laptop and Ubuntu on the desktop.
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Hi Rickkk
Thanks. I don't know if you noticed one of my posts, but I discovered that, if I leave MuseScore playing one of my scores with a poor sound quality, it slowly improves (over about 1-2 minutes) to the point where it suddenly comes good. I can then use it without any problems. After a shut-down, however, I'm back to square one.

Phil J.
Old 05-21-2020, 08:30 AM   #18
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Location: Montreal, Quebec, CANADA
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Hey Phil,

I did see that. It's not expected behaviour. Does this occur only with MuseScore or with any application playing sound ?

Also, are you saying you'd rather leave it alone of continue troubleshooting ?

Cheers !


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