Mazurka Plugin on eee pc running Ubuntu Linux

[davidf]

Hello:

I've installed Sonic Visualiser and  a number of other plugins. The extra plugins whose names begin with Mz show in SV, however, mazurka-plugins.so does not seem to be showing in SV at all. Specifically I was looking for the Power curve.

My machine runs an Intel Atom 1.6 Ghz with 1 Gig of memory on a solid state drive.

mazurak-plugins.so is installed (with all the other plugins) in /usr/lib/vamp/

Any suggestions as to why just the mazurka plugins are not showing up?

My guess is that they might not have been compiled for this particular x86 processor in mind.

cheers,
davidf

[cannam]

I can't easily test the Mazurka plugins right now, as I'm using a 64-bit distro at the moment and they only come in 32-bit builds.

If you run sonic-visualiser from a command line, you might see some sort of useful error message (somewhere near the start of any debug or logging information it prints out).  For example, if I install the 32-bit Mazurka plugins .so and run my 64-bit SV build, it says:

WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Failed to load library /usr/local/lib/vamp/mazurka-plugins.so: /usr/local/lib/vamp/mazurka-plugins.so: wrong ELF class: ELFCLASS32

If you aren't getting any useful information out of Sonic Visualiser, you could try running vamp-simple-host instead (with the -l option to list installed plugins).


Chris

[davidf]

Hello:

Well, I usually start Sonic-Visualiser from the command-line since the Gnome Metacity interface creates no icon for it on my desktop. However, since it starts so fast on this machine the notices in the shell go by blindingly fast. BUT.. I should have paid attention.

Code:

Failed to load library /usr/lib/vamp/MzPitchPower.so: libstdc++.so.5:

That was the crucial error message. sudo wagig status llibstdc++5 states N/A meanign its not there. I downloaded the package and installed it and the Mazurka Plugin now works.

I was started to  wonder why dpkg didn't alert me to the problem, however I remembered that although the main program was installed using dpkg, most of the Plugins were not. I simply dropped them into the correct place in the system.

Now back to the tutorial to discover how to use these new plugins