Mixer does'nt work correctly

[YruamaLairba]

I'm on Linux Librazik 2 (derived from Debian 9) and using the zynnaddsub 3.0.5 from Librazik repository. The zynaddsubfx Mixer have several issues:

• volume fader of each part doesn't change volume of the part
• VU-meter aren't displayed on the right mixer slice
• More a question: what does the "edit" button at the bottom of each mixer slice ? i don't see or ear any change when i'm clicking on it.
• With LV2 plugin and Carla only, parts volume from 2 are set to their maximum, making them to loud

[YruamaLairba]

For the VU-meter display issue, i do for example the following manipulation:

• go in mixer view ("mixer" button on the left)
• enable part 3 (the button "3" a the top of the third mixer slice become blue)
• Change "CH3" to "CH1" at the bottom of the third mixer slice.
• Disable all other part (corresponding button should be gray)
• play on he virtual keyboard

This is what i get:

An this is what it should look like (i used gimp):

[fundamental]

This looks like a mismatch between the UI code and the backend code. Some point fairly recently the per-part metering was extended to provide a stereo VU each instead of a monophonic one. I see the right behavior locally and the screenshot you presented is consistent with the UI trying to display the stereo info assuming it was monophonic data.

So, this should be resolved in the next release.