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There appears to be no way to edit my post so I will add info here. This issue is with regard to 3rd party VST3 plugins - of all brands. Some work some don't but ALL report the I/O error. The reason I marked this "major" is because a user can inadvertently think the plugin is working when it is in fact not affecting the audio at all. |
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At this point it time Ardour's VST3 host supports only "one main bus, and one aux-bus. Also an optional aux-bus by itself is currently N/A. |
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Which plugin(s) are affected by this? |
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>>At this point it time Ardour's VST3 host supports only "one main bus, and one aux-bus. Also an optional aux-bus by itself is currently N/A The error I am reporting here is shown for all VST3 plugins including 2in/2out plugins. Every VST3 plugin I have checked in plugin scan shows this error "[Info]: VST3: \ error getting busInfo for bus: 0 rv: 0, got type: kMain". Some VST3 plugins produce audio output while others simply pass the signal thru unaffected. >>Which plugin(s) are affected by this? It's not specific to any particular plugin brand or plugin title - and those plugins that don't work in Ardour work fine in all other DAWs. Therefore, there appears to be a VST3 interface issue in Ardour. If others users have noticed this issue they probably blame it on the plugin(s) and move along. Please do some checking on your own and don't take my word for it! |
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Yes, as I said above it is not a plugin issue, but missing support for specific VST3 configurations in Ardour I am curious if you have a VST3 that has more than one output bus or announces an output bus as main out, and hence does not currently work correctly in Ardour. So far the only one I know is Addictive Drums in multi-out mode. |
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To be clear, there are two problems here: 1) EVERY VST3 plugin shows up in the Plugin Manager as having I/O bus errors - including major brands like Fabfilter, Izotope and Waves. Please see attached screenshots. This is not due to a "specific VST3 configuration". 2) Some plugins, even those with only stereo I/O (no aux buses) - do not process the audio and pass it through unaffected. AFAIK, all plugins announce their main I/O bus as "Main". That is the Steinberg VST3 default labeling for main pins regardless of any aux pins. I cannot explain why some plugins work and others don't. Ardour VST3 errors.png (165,978 bytes) |
- Anonymous
