Non-empty .wav file is rendered but unplayable

[samuelbraun04]

I am trying to load a preset onto the Serenity SE plugin, load a midi file, and render it into a wave file.

The code I'm doing this with is:

ENGINE.set_bpm(30)
serenity = ENGINE.make_plugin_processor("serenity", path/to/plugin)
serenity.load_vst3_preset(path/to/preset/example.vstpreset)
serenity.load_midi(path/to/midi, beats=True)
        
graph = [
    (serenity, [])
]
        
ENGINE.load_graph(graph)
ENGINE.render(4, beats=True)
wavfile.write(path/to/finafile, 44100, (ENGINE.get_audio()).transpose())

When I run this a non-empty wav file is rendered, but it is unplayable (I've tried on multiple different players, and when I drag-and-drop it into FL Studio the clip appears empty).

Something like this has worked for another plugin (specifically Vital and I was loading states), so what could be the problem here? Thank you.

[DBraun]

The rendered wav file is 32 channels of zeros. I recommend Audacity for inspecting waveforms. On Windows I also do control-shift-f to view all the tracks at once.

I suspect that the loading of the preset file isn't working. Have you tried serenity.open_editor() in order to select a preset?

[samuelbraun04]

Thanks for the audacity tip I didn't know about that.

When I do serenity.open_editor() and select a preset I get the same rendered file.

The code I'm running:

ENGINE.set_bpm(30)
serenity = ENGINE.make_plugin_processor("serenity", path/to/plugin)
#serenity.load_vst3_preset(path/to/preset/example.vstpreset)
serenity.open_editor()
serenity.load_midi(path/to/midi, beats=True)
        
graph = [
    (serenity, [])
]
        
ENGINE.load_graph(graph)
ENGINE.render(4, beats=True)
wavfile.write(path/to/finafile, 44100, (ENGINE.get_audio()).transpose())

[samuelbraun04]

The problem is with the plugin itself. Other plugins work, and just using the Serenity plugin alone with no presets doesn't work either:

ENGINE.set_bpm(30)
serenity = ENGINE.make_plugin_processor("serenity", path/to/plugin)
serenity.load_midi(path/to/midi, beats=True)
        
graph = [
    (serenity, [])
]
        
ENGINE.load_graph(graph)
ENGINE.render(4, beats=True)
wavfile.write(path/to/finafile, 44100, (ENGINE.get_audio()).transpose())

[DBraun]

Since I don't have the plugin, can you try this

assert serenity.can_set_bus(0, 2)
serenity.set_bus(0, 2)

And if that doesn't work

assert serenity.can_set_bus(2, 2)
serenity.set_bus(2, 2)

And a low probability that this could help, but try just the others first

serenity.disable_nonmain_buses()

Also, make sure the MIDI notes make sense for the plugin. Maybe

serenity.add_midi_note(60, 127, 0.1, 8)

could be more reliable.

[samuelbraun04]

Unfortunately, serenity.set_bus(0, 2) returns serenity CANNOT ApplyBusesLayout inputs: 0 outputs: 2
and serenity.set_bus(2, 2) returns serenity CANNOT ApplyBusesLayout inputs: 2 outputs: 2

serenity.disable_nonmain_buses() returns the error Exception has occurred: AttributeError 'dawdreamer.dawdreamer.PluginProcessor' object has no attribute 'disable_nonmain_buses'

And solely doing serenity.add_midi_note(60, 127, 0.1, 8) still returns an empty wav file.

There is a free version of the plugin available, but I might just have to find an alternative since these problems seem to be something weird about the plugin itself.