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| derpanerp | hello? | 12:00 |
|---|---|---|
| rgareus | hi derpanerp | 12:03 |
| derpanerp | hooray! | 12:03 |
| derpanerp | I have a question about lv2 plugins | 12:03 |
| rgareus | just ask. | 12:04 |
| derpanerp | how does one write in ttl file that a connection should be connection optional? | 12:04 |
| derpanerp | or | 12:04 |
| derpanerp | can you change a cvport to controlport without breaking a plugin? | 12:05 |
| rgareus | as for the former. lv2:portProperty lv2:connectionOptional; if you're on linux: grep -rl lv2:connectionOptional /usr/lib/lv2/ and you may find a couple of example plugins | 12:06 |
| rgareus | derpanerp: chaning CV to control-port. No. | 12:06 |
| derpanerp | but if i change a cvport to connection optional? | 12:07 |
| rgareus | CV is an audio-input. I guess if that port goes missing some hosts will not properly restore the state | 12:07 |
| derpanerp | its audio input to control a parameter, right? | 12:08 |
| rgareus | TBH, I never used "connection optional" and I'm not even sure if/what hosts honor it (and don't connect it) | 12:08 |
| rgareus | derpanerp: yes, CV is a continuous data-signal used as control-data, but usually just audio float -1..+1 | 12:09 |
| derpanerp | so, on or off? | 12:09 |
| rgareus | no. CV is a "control voltage" it can be any value, really | 12:10 |
| rgareus | derpanerp: depending on how widespread the plugin is, one way out is to simply change the plugin URI. deprecate the old pluin and create a new one. That'll also break sessions using the plugin though | 12:10 |
| derpanerp | im trying to load a plugin in Ardour, and it says "port x has no known data", and looking at the ttl I see that it's CVport | 12:11 |
| derpanerp | its objective wave Beatslash plugins | 12:11 |
| rgareus | I'm not sure if ardour supports CV ports. usually CV is only used in modular synths | 12:11 |
| derpanerp | I changes the cvport to control port in text editor, and it made the plugin work | 12:12 |
| derpanerp | So, is there a substitution for cv port that would do the same thing? | 12:12 |
| rgareus | derpanerp: you'll have to change the source, too. CV port receives an array of floats. one value per sample | 12:13 |
| rgareus | a control-port is just a single float, valid for all samples (of the current process cycle) | 12:13 |
| derpanerp | what is the source? the audio or the URI? | 12:13 |
| rgareus | the source-code (C++) https://github.com/blablack/beatslash-lv2/tree/master/src | 12:14 |
| rgareus | I'm not sure what what beatslash does when it expects a continuos signal (CV) but only receives a single parameter. most likely crash (segfault) sooner or later | 12:15 |
| derpanerp | Sorry to sound so noob, but I have never programmed anything before. Can I change the source for just me on my system, or the one on github? | 12:16 |
| rgareus | derpanerp: I guess the short story is: the plugin does not work in ardour. | 12:16 |
| rgareus | as the readme says, its for modular synths (not DAWs) | 12:17 |
| rgareus | "Ingen is the recommended host" | 12:17 |
| derpanerp | DAMN! | 12:17 |
| derpanerp | I must have missed that | 12:17 |
| rgareus | it's been a while since blalack (the author of those plugins) has been here on IRC. perhaps easiest is to ask via https://github.com/blablack/beatslash-lv2/issues | 12:17 |
| derpanerp | I think I might shoot him an email. I need to get to making some music, anyway. | 12:18 |
| rgareus | You can load ingen as plugin in ardour though.. http://drobilla.net/files/ingen_in_ardour.png | 12:18 |
| derpanerp | Linux Mint + Ardour updates have had my systerm thrashed | 12:19 |
| derpanerp | that's cool, and that's what he was using in the demo, so I'll give that a try | 12:20 |
| derpanerp | I was really looking forward to checking these plugins out | 12:20 |
| derpanerp | Thanks for all your help. I've ceartainly learned a lot about lv2 tonight. | 12:24 |
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