!XrtRvzcHOrHtSKARne:nixos.org

NixOS Audio

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14 Jun 2023
@gdesforges:matrix.orgGuillaume DesforgesDoes anyone know how I can pipe my mic+ardour master output to an app (Google Chrome/Discord/...) ?08:55:34
@gdesforges:matrix.orgGuillaume DesforgesI think I could create a "virtual input" in JACK with takes both inputs and simulates a mic08:56:09
@gdesforges:matrix.orgGuillaume Desforges * I think I could create a "virtual input" in JACK with takes both inputs and simulates a mic which I can pick in these apps08:56:17
@gdesforges:matrix.orgGuillaume Desforgesbut IDK how to do that on Linux, I've used Banana on Windows08:56:41
@tamtaram:chat.heizhaus.orgTamara (dm me on @tammeyy:winter-cottage.eu please)
In reply to @gdesforges:matrix.org
Does anyone know how I can pipe my mic+ardour master output to an app (Google Chrome/Discord/...) ?
You use Helium which is like Jack's patchbay GUI tools
08:56:50
@gdesforges:matrix.orgGuillaume Desforgessounds nice08:57:01
@gdesforges:matrix.orgGuillaume DesforgesI tried "connecting" my ardour output to google chrome input with qjackctl but it was not enough08:57:32
@tamtaram:chat.heizhaus.orgTamara (dm me on @tammeyy:winter-cottage.eu please)You can drag the ardour output to an application input sink or as the input of a device 08:57:40
@tamtaram:chat.heizhaus.orgTamara (dm me on @tammeyy:winter-cottage.eu please)
In reply to @gdesforges:matrix.org
I tried "connecting" my ardour output to google chrome input with qjackctl but it was not enough
Hmm. Do u use jack or pipewire-jack?
08:57:57
@gdesforges:matrix.orgGuillaume Desforgespipewire with jack enabled08:58:35
@gdesforges:matrix.orgGuillaume Desforges * pipewire with jack enabled on NixOS08:58:48
@tamtaram:chat.heizhaus.orgTamara (dm me on @tammeyy:winter-cottage.eu please)I'd recommend you give a go at a pipewire native GUI tool and not qjack since that's not interacting with pipewire's native Api afaik09:00:28
@tamtaram:chat.heizhaus.orgTamara (dm me on @tammeyy:winter-cottage.eu please)Check out this ;) https://github.com/mikeroyal/PipeWire-Guide#audio-tools--libraries-to-use-with-pipewire09:00:32
@tamtaram:chat.heizhaus.orgTamara (dm me on @tammeyy:winter-cottage.eu please)qpwgraph is basically qjackctl for pipewire09:01:06
@tamtaram:chat.heizhaus.orgTamara (dm me on @tammeyy:winter-cottage.eu please)Hope u get it to worj09:03:24
@tamtaram:chat.heizhaus.orgTamara (dm me on @tammeyy:winter-cottage.eu please)* Hope u get it to work09:03:29
@Minijackson:matrix.orgMinijacksonI personally use pw-viz, which is already packaged in nixpkgs09:03:59
@evils:nixos.devevils
In reply to @evils:nixos.dev
slightly unrelated
i've added an effect in easyeffects, it crashed, and now no longer starts
(killed, returns 137)
i've not found the local config for that, so it seems like i can't undo adding the effect
and maybe related, audacity takes forever to start, but starts in a pure nix-shell
FYI: easyeffects -r resets it (still crashes on that invocation), that fixed it
12:41:59
@evils:nixos.devevils
In reply to @evils:nixos.dev
slightly unrelated
i've added an effect in easyeffects, it crashed, and now no longer starts
(killed, returns 137)
i've not found the local config for that, so it seems like i can't undo adding the effect
and maybe related, audacity takes forever to start, but starts in a pure nix-shell
* FYI: easyeffects -r resets it (still crashes on that invocation), that fixed it
still waiting for audacity to launch though xD
12:43:06
@evils:nixos.devevilsanyone know how to set the sample rate in pipewire?13:47:28
@Minijackson:matrix.orgMinijackson
In reply to @evils:nixos.dev
anyone know how to set the sample rate in pipewire?
maybe you can using the PIPEWIRE_LATENCY env variable, but it's per-client
17:59:30
@Minijackson:matrix.orgMinijackson for example PIPEWIRE_LATENCY=256/48000 carla 17:59:36
@evils:nixos.devevilsyea, i found that, it does nothing18:00:01
@evils:nixos.devevilsi did set a /etc config file that may take effect the next time i reboot, but i'm hoping not to reboot for a while18:00:39
@Minijackson:matrix.orgMinijackson
In reply to @evils:nixos.dev
yea, i found that, it does nothing
it did help me for the "latency" part
18:01:02
@Minijackson:matrix.orgMinijackson
In reply to @evils:nixos.dev
i did set a /etc config file that may take effect the next time i reboot, but i'm hoping not to reboot for a while
a pipewire config file? What did you put, if I may ask?
18:01:37
@evils:nixos.devevils
  environment.etc = let
    json = pkgs.formats.json {};
  in {
    "pipewire/pipewire.d/92-low-latency.conf".source = json.generate "92-low-latency.conf" {
      context.properties = {
        default.clock.rate = 192000;
        default.clock.quantum = 32;
        default.clock.min-quantum = 32;
        default.clock.max-quantum = 1024;
      };
    };
  };
18:02:00
@evils:nixos.devevilsbasically directly from the NixOS wiki but with my interface's max sample rate18:02:29
@Minijackson:matrix.orgMinijacksonthanks18:02:37
@Minijackson:matrix.orgMinijacksonif you don't want to reboot, you could just restart pipewire18:03:19

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