diff --git a/src/daemon/filter-chain/sink-dolby-surround.conf b/src/daemon/filter-chain/sink-dolby-surround.conf
index f51395806..7eb66e6da 100644
--- a/src/daemon/filter-chain/sink-dolby-surround.conf
+++ b/src/daemon/filter-chain/sink-dolby-surround.conf
@@ -3,45 +3,118 @@
 # Copy this file into a conf.d/ directory such as
 # ~/.config/pipewire/filter-chain.conf.d/
 #
-context.modules = [
-    { name = libpipewire-module-filter-chain
-        flags = [ nofail ]
-        args = {
-            node.description = "Dolby Surround Sink"
-            media.name       = "Dolby Surround Sink"
-            filter.graph = {
-                nodes = [
-                    {
-                        type  = builtin
-                        name  = mixer
-                        label = mixer
-                        control = { "Gain 1" = 0.5 "Gain 2" = 0.5 }
-                    }
-                    {
-                        type   = ladspa
-                        name   = enc
-                        plugin = surround_encoder_1401
-                        label  = surroundEncoder
-                    }
-                ]
-                links = [
-                    { output = "mixer:Out" input = "enc:S" }
-                ]
-                inputs  = [ "enc:L" "enc:R" "enc:C" null "mixer:In 1" "mixer:In 2" ]
-                outputs = [ "enc:Lt" "enc:Rt" ]
+{
+  "context.modules": [
+    {
+      "name": "libpipewire-module-filter-chain",
+      "flags": [
+        "nofail"
+      ],
+      "args": {
+        "node.description": "Dolby Surround Sink",
+        "media.name": "Dolby Surround Sink",
+        "filter.graph": {
+          "nodes": [
+            {
+              "type": "builtin",
+              "name": "mixer_fc",
+              "label": "mixer"
+            },
+            {
+              "type": "builtin",
+              "name": "mixer_s",
+              "label": "mixer"
+            },
+            {
+              "type": "builtin",
+              "name": "s_phased",
+              "label": "convolver",
+              "config": {
+                "filename": "/hilbert",
+                "length": 90
+              }
+            },
+            {
+              "type": "builtin",
+              "name": "mixer_lt",
+              "label": "mixer",
+              "control": {
+                "Gain 1": 1,
+                "Gain 2": 0,
+                "Gain 3": 0.7071067811865475,
+                "Gain 4": -0.7071067811865475
+              }
+            },
+            {
+              "type": "builtin",
+              "name": "mixer_rt",
+              "label": "mixer",
+              "control": {
+                "Gain 1": 0,
+                "Gain 2": 1,
+                "Gain 3": 0.7071067811865475,
+                "Gain 4": 0.7071067811865475
+              }
             }
-            capture.props = {
-                node.name      = "effect_input.dolby_surround"
-                media.class    = Audio/Sink
-                audio.channels = 6
-                audio.position = [ FL FR FC LFE SL SR ]
-            }
-            playback.props = {
-                node.name      = "effect_output.dolby_surround"
-                node.passive   = true
-                audio.channels = 2
-                audio.position = [ FL FR ]
+          ],
+          "links": [
+            {
+              "output": "mixer_fc:Out",
+              "input": "mixer_lt:In 3"
+            },
+            {
+              "output": "mixer_fc:Out",
+              "input": "mixer_rt:In 3"
+            },
+            {
+              "output": "mixer_s:Out",
+              "input": "s_phased:In"
+            },
+            {
+              "output": "s_phased:Out",
+              "input": "mixer_lt:In 4"
+            },
+            {
+              "output": "s_phased:Out",
+              "input": "mixer_rt:In 4"
             }
+          ],
+          "inputs": [
+            "mixer_lt:In 1",
+            "mixer_rt:In 2",
+            "mixer_fc:In 1",
+            "mixer_fc:In 2",
+            "mixer_s:In 1",
+            "mixer_s:In 2"
+          ],
+          "outputs": [
+            "mixer_lt:Out",
+            "mixer_rt:Out"
+          ]
+        },
+        "capture.props": {
+          "node.name": "effect_input.dolby_surround",
+          "media.class": "Audio/Sink",
+          "audio.channels": 6,
+          "audio.position": [
+            "FL",
+            "FR",
+            "FC",
+            "LFE",
+            "SL",
+            "SR"
+          ]
+        },
+        "playback.props": {
+          "node.name": "effect_output.dolby_surround",
+          "node.passive": true,
+          "audio.channels": 2,
+          "audio.position": [
+            "FL",
+            "FR"
+          ]
         }
+      }
     }
-]
+  ]
+}