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PortMidi: Update volume after "reset all controllers" event #571
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This is a workaround for a bug that appears when using PortMidi, Windows, and the default Windows MIDI synth (Microsoft GS Wavetable Synth). When the MS GS Synth receives a "reset all controllers" event it also resets the channel volume, deviating from MIDI spec. As a result, in certain cases the channel can be audible even if the music volume slider is set to zero. The workaround is to always update the volume after a "reset all controllers" event.
Test wad: reset_all_ctrls_test.zip