Old 04-20-2021, 01:05 PM   #1
wholehalf
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Default LV2 support for atom:Path type

Would it be possible to implement LV2 support for the atom:Path type parameter? I came across this issue when trying to use the 'midi file' LV2 plugin that comes bundled with Carla (https://github.com/falkTX/Carla]). If this parameter was supported, there would be an icon to open a popup 'open file' window, that would allow loading a midi file into the plugin, as is shown in the screenshot from Ardour. Right now in REAPER, this icon does not show up. I orginally thought it was an issue in Carla, so I originally opened an issue ticket on Github and I got the following reply from falkTX, Carla's developer:

"when using the midi file directly in reaper, the issue will be on reaper side.
it needs to support plugin parameters of atom:Path type.
I guess it does not do that right now."

(link: https://github.com/falkTX/Carla/issues/1398)
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Old 12-13-2021, 01:29 PM   #2
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Having the same issue here as well with the DIE Fluidsynth plugin (also maintained by falk). There’s no button that allows me to choose which sf2 file to use so the instrument is entirely unusable in REAPER for the same reason.
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Old 03-09-2023, 05:11 PM   #3
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This is still an issue. It pops up generally with simple plugins that do not have a user interface.

For example, this convolver:

https://github.com/x42/convoLV2

which needs a path to the impulse response file.

Without a plugin GUI, the only way to have a user specify a file is by using an atom:Path parameter.
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Old 03-21-2023, 03:54 PM   #4
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I am using https://github.com/mikeoliphant/neural-amp-modeler-lv2 (Linux) but I have to use other DAWs since Reaper doesn't support atom:Path. Sign me up on the list of users hoping that Reaper will support it soon.
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Old 04-01-2023, 10:20 AM   #5
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Another +1. Seems this would also be helpful for accessibility with LV2 format plugs.
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Old 04-12-2023, 05:38 AM   #6
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Yet another +1. Only some plugins are compiled for Linux and more for Mac, so it's imperative that the host have a fully supported back-end to not further exclude these OSes.
Omitting atom:Path is limiting Reaper adoption in *all* OSes. Thanks for the consideration.
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Old 04-16-2023, 05:41 PM   #7
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+1 on this
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Old 04-17-2023, 05:33 AM   #8
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+1 Would be great to have this implemented! :-)
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Old 05-16-2023, 01:03 PM   #9
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I've been looking into the new Neuro-amp-modeler-lv2 plugin:

https://github.com/mikeoliphant/neural-amp-modeler-lv2

I've learned that we can't use this plug in without yucky workarounds.

It would be REALLY nice if this were supported!

EDIT: There are SO MANY Plugins that we Linux users can't use in Reaper because of this. Justin, Schwa, this is SO important! Linux users have a limited source of plugins as it is, and this one thing is preventing us from using so many more plugins that other DAWs are able to use, such as Ardour.

EDIT 2: Here's another post I made about this that has more detail:

https://forum.cockos.com/showthread.php?t=279210

Please, respond to this topic and explain why this shouldn't be a priority. Thank you!

Last edited by audiojunkie; 05-16-2023 at 02:27 PM.
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Old 05-17-2023, 05:49 AM   #10
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+1 on this too!
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Old 05-22-2023, 11:27 AM   #11
wholehalf
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Check the latest prerelease thread!
https://forum.cockos.com/showthread.php?t=279338
Quote:
+ LV2: non-automatable patch parameter support including atom:Path filename selection [t=252480]
Many thanks!
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Old 05-22-2023, 02:48 PM   #12
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Very, very cool!!!
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Old 05-29-2023, 10:05 AM   #13
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Quote:
Originally Posted by wholehalf View Post
Check the latest prerelease thread!
https://forum.cockos.com/showthread.php?t=279338

Many thanks!
I haven't been able to find a build with this working. I tried that prerelease build without success. We're up to version 6.80 in production now, and I don't see any mention of this in release notes.
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Old 05-30-2023, 12:40 PM   #14
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Quote:
Originally Posted by sockmonkey72 View Post
v6.79+dev0522 - May 22 2023
  • + LV2: non-automatable patch parameter support including atom:Path filename selection [t=252480]

Changelog - Pre-Releases

Thank you!
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Old 05-30-2023, 03:56 PM   #15
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Quote:
Originally Posted by ladron View Post
I haven't been able to find a build with this working. I tried that prerelease build without success. We're up to version 6.80 in production now, and I don't see any mention of this in release notes.
Nevermind - I just didn't get the correct version from the prerelease list.
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Old 05-31-2023, 02:25 PM   #16
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It didn't make it to 6.80 but it's in new pre-release 6.80+ https://forum.cockos.com/showthread.php?t=279565
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Old 08-20-2023, 07:14 AM   #17
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Quote:
Originally Posted by krahosk View Post
Thank you!
Still no IR/file selector with certain x42 plugins such as https://x42-plugins.com/x42/x42-zconvolver:



vs



and in the non-preset version...



which is able to open up a file selector in Ardour (the green box) but is completely missing in REAPER:

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Last edited by chmaha; 08-21-2023 at 03:52 AM.
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Old 09-07-2023, 04:31 PM   #18
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Patiently bumping for exposure and comments
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Old 10-12-2023, 01:09 AM   #19
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Seems like as of v6.83 you can now browse for an IR in the x42 configurable convolver (thanks!) but still not in the preset-only convolver (still just a completely blank window).
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