From 8de7fbf3f5442974dcf56925a318d25005f43058 Mon Sep 17 00:00:00 2001
From: Pyrox <pyrox@pyrox.dev>
Date: Sun, 23 Jun 2024 14:45:47 -0400
Subject: [PATCH] [systems.zaphod] pipewire: configure for low latency

---
 .../x86_64-linux/zaphod/services/pipewire.nix | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/systems/x86_64-linux/zaphod/services/pipewire.nix b/systems/x86_64-linux/zaphod/services/pipewire.nix
index 85101f69..30e523be 100644
--- a/systems/x86_64-linux/zaphod/services/pipewire.nix
+++ b/systems/x86_64-linux/zaphod/services/pipewire.nix
@@ -7,6 +7,35 @@
     jack.enable = true;
     pulse.enable = true;
     wireplumber.enable = true;
+    extraConfig = {
+      pipewire."92-low-latency" = {
+        "context.properties" = {
+          "default.clock.rate" = 48000;
+          "default.clock.quantum" = 32;
+          "default.clock.min-quantum" = 32;
+          "default.clock.max-quantum" = 32;
+        };
+      };
+      pipewire-pulse."92-low-latency" = {
+        "context.properties" = [
+          {
+            name = "libpipewire-module-protocol-pulse";
+            args = { };
+          }
+        ];
+        "pulse.properties" = {
+          "pulse.min.req" = "32/48000";
+          "pulse.default.req" = "32/48000";
+          "pulse.max.req" = "32/48000";
+          "pulse.min.quantum" = "32/48000";
+          "pulse.max.quantum" = "32/48000";
+        };
+        "stream.properties" = {
+          "node.latency" = "32/48000";
+          "resample.quality" = 1;
+        };
+      };
+    };
   };
   security.rtkit.enable = true;
 }
-- 
2.51.2