!XrtRvzcHOrHtSKARne:nixos.org

NixOS Audio

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14 Jun 2023
@evils:nixos.devevils18ms round trip time vs my interface's input monitoring19:21:14
@evils:nixos.devevils that's with 128/192000
with PIPEWIRE_LATENCY=512/192000 easyeffects i get 21.6ms
4096/192000 gets me 36.5ms
4096/48000 gets me 35.8ms...
and 32/192000 gets me 17.9ms 		19:55:33
@evils:nixos.devevilsso it does have an effect19:55:45
@evils:nixos.devevilsIMG_20230614_215928.jpg
Download IMG_20230614_215928.jpg		20:02:31
@evils:nixos.devevilsthat's with 32/192000 and an effect running, i think it's running out of buffer and returning 0 xD20:03:27
17 Jun 2023
@tamtaram:chat.heizhaus.orgTamara
In reply to @Minijackson:matrix.org

in my personal config, I have set:

{
  environment.pathsToLink = ["/share/soundfonts"];

  environment.variables = {
    DSSI_PATH = lib.mkForce "$HOME/.dssi:$HOME/.nix-profile/lib/dssi:/run/current-system/sw/lib/dssi:/etc/profiles/per-user/$USER/lib/dssi";
    LADSPA_PATH = lib.mkForce "$HOME/.ladspa:$HOME/.nix-profile/lib/ladspa:/run/current-system/sw/lib/ladspa:/etc/profiles/per-user/$USER/lib/ladspa";
    LV2_PATH = lib.mkForce "$HOME/.lv2:$HOME/.nix-profile/lib/lv2:/run/current-system/sw/lib/lv2:/etc/profiles/per-user/$USER/lib/lv2";
    LXVST_PATH = lib.mkForce "$HOME/.lxvst:$HOME/.nix-profile/lib/lxvst:/run/current-system/sw/lib/lxvst:/etc/profiles/per-user/$USER/lib/lxvst";
    VST_PATH = lib.mkForce "$HOME/.vst:$HOME/.nix-profile/lib/vst:/run/current-system/sw/lib/vst:/etc/profiles/per-user/$USER/lib/vst";
    VST3_PATH = lib.mkForce "$HOME/.vst3:$HOME/.nix-profile/lib/vst3:/run/current-system/sw/lib/vst3:/etc/profiles/per-user/$USER/lib/vst3";
  };
}
okay i tried this now. no difference. ardour still cannot find any plugins 		11:22:28
@Minijackson:matrix.orgMinijacksonhmmm11:23:53
@Minijackson:matrix.orgMinijacksonjust checked in my Ardour settings, and it does seem like Ardour doesn't respect this env variable11:24:09
@Minijackson:matrix.orgMinijacksoncan you go into "Edit > Preferences > Plugins > VST" and see / edit the path?11:24:33
@tamtaram:chat.heizhaus.orgTamara
In reply to @Minijackson:matrix.org
can you go into "Edit > Preferences > Plugins > VST" and see / edit the path?
oh yeah. i can do that. and now it finds my problems 		11:28:40
@tamtaram:chat.heizhaus.orgTamara
In reply to @Minijackson:matrix.org
can you go into "Edit > Preferences > Plugins > VST" and see / edit the path?
* oh yeah. i can do that. and now it finds my plugins 		11:29:26
@tamtaram:chat.heizhaus.orgTamarai see nothing regarding envs in the nix config https://github.com/NixOS/nixpkgs/blob/master/pkgs/applications/audio/ardour/default.nix11:29:37
@Minijackson:matrix.orgMinijackson
In reply to @tamtaram:chat.heizhaus.org
i see nothing regarding envs in the nix config https://github.com/NixOS/nixpkgs/blob/master/pkgs/applications/audio/ardour/default.nix
should there be? 		11:30:20
@tamtaram:chat.heizhaus.orgTamara
In reply to @Minijackson:matrix.org
should there be?
do you think it's acceptable that if i install ardour and lv2 plugins as a package, that ardour then ignores their existence? 		11:31:13
@Minijackson:matrix.orgMinijacksonI mean, Nix installs those packages in non-standard paths11:32:18
@Minijackson:matrix.orgMinijacksonbut I guess Ardour could be patched to modify the default LV2 / VST3 paths11:33:07
@tamtaram:chat.heizhaus.orgTamarafound one of the paths: https://github.com/Ardour/ardour/blob/9b797dc4c17649b6ad2cc3108e76841719332e70/libs/ardour/plugin_manager.cc#L30611:35:37
@tamtaram:chat.heizhaus.orgTamara im guessing a patch can be built using nix develop? guess thats a good introduction to nix packaging for me 11:36:47
@tamtaram:chat.heizhaus.orgTamaraohh. it does check the ENVs but only during your first time launch11:41:20
@tamtaram:chat.heizhaus.orgTamarabut the "Reset to default" button does not11:42:15
@Minijackson:matrix.orgMinijackson
In reply to @tamtaram:chat.heizhaus.org
im guessing a patch can be built using nix develop? guess thats a good introduction to nix packaging for me
it can, but I think nix removes the .git folder, so it wouldn't track your change by default 		12:15:24
@Minijackson:matrix.orgMinijackson you can make the src point to another local repository using --redirect, however 12:15:53
@tamtaram:chat.heizhaus.orgTamarauhh ok. i just made a patch file based on the upstream git. then i applied it with patch and am waiting for that to compile12:21:38
@tamtaram:chat.heizhaus.orgTamarayey at least the patch works. uhh lemme try add it to nixpkg12:25:36
@tamtaram:chat.heizhaus.orgTamaranot sure if i should switch channel for this but quick question: i've made a change to the default.nix of ardour in my local copy of the nixpkgs git. how do i build this locally? would like to do that before i open a PR12:52:27
@tamtaram:chat.heizhaus.orgTamarai got help from someone else ;) PR is up: https://github.com/NixOS/nixpkgs/pull/23826813:33:53
@gdesforges:matrix.orgGuillaume Desforges
In reply to @tamtaram:chat.heizhaus.org
not sure if i should switch channel for this but quick question: i've made a change to the default.nix of ardour in my local copy of the nixpkgs git. how do i build this locally? would like to do that before i open a PR
you can CD to the nixpkgs folder and do
nix build path:.#ardour7 		14:01:08
@tamtaram:chat.heizhaus.orgTamarathank you. build worked 14:11:17
@rampoina:matrix.orgRampoinahmm15:48:30
@rampoina:matrix.orgRampoinaI do have VST_PATH set15:48:34

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