Initial release: ComfyUI-UniverSR

ComfyUI nodes for UniverSR (ICASSP 2026) — vocoder-free audio super-resolution (8/12/16/24 kHz → 48 kHz) via flow matching. - UniverSR Model Loader: presets auto-download to models/universr, plus local dir / raw .pth (from_local) loading, with caching. - UniverSR Super-Resolution: chunked overlap-add for long audio, per-channel stereo, seed control with global-RNG isolation, wet/dry blend, and an optional before/after spectrogram. - Vendors the universr inference package under vendor/ (prefers an installed copy); only extra dep beyond ComfyUI's stack is torchdiffeq. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-01 12:59:42 +02:00
commit 5f29b225b7
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+{
+  "last_node_id": 5,
+  "last_link_id": 4,
+  "nodes": [
+    {
+      "id": 1,
+      "type": "LoadAudio",
+      "pos": [120, 200],
+      "size": [320, 124],
+      "flags": {},
+      "order": 0,
+      "mode": 0,
+      "inputs": [],
+      "outputs": [
+        {"name": "AUDIO", "type": "AUDIO", "links": [1], "slot_index": 0}
+      ],
+      "properties": {"Node name for S&R": "LoadAudio"},
+      "widgets_values": ["example.wav", null, ""]
+    },
+    {
+      "id": 2,
+      "type": "UniverSRModelLoader",
+      "pos": [120, 380],
+      "size": [340, 130],
+      "flags": {},
+      "order": 1,
+      "mode": 0,
+      "inputs": [],
+      "outputs": [
+        {"name": "model", "type": "UNIVERSR_MODEL", "links": [2], "slot_index": 0}
+      ],
+      "properties": {"Node name for S&R": "UniverSRModelLoader"},
+      "widgets_values": ["universr-audio", "auto", "", ""]
+    },
+    {
+      "id": 3,
+      "type": "UniverSRSampler",
+      "pos": [540, 200],
+      "size": [340, 320],
+      "flags": {},
+      "order": 2,
+      "mode": 0,
+      "inputs": [
+        {"name": "audio", "type": "AUDIO", "link": 1},
+        {"name": "model", "type": "UNIVERSR_MODEL", "link": 2}
+      ],
+      "outputs": [
+        {"name": "audio", "type": "AUDIO", "links": [3], "slot_index": 0},
+        {"name": "spectrogram", "type": "IMAGE", "links": [4], "slot_index": 1}
+      ],
+      "properties": {"Node name for S&R": "UniverSRSampler"},
+      "widgets_values": [8000, "midpoint", 4, 1.5, 0, "randomize", 10.0, 0.5, 1.0, false, true]
+    },
+    {
+      "id": 4,
+      "type": "PreviewAudio",
+      "pos": [940, 200],
+      "size": [320, 100],
+      "flags": {},
+      "order": 3,
+      "mode": 0,
+      "inputs": [
+        {"name": "audio", "type": "AUDIO", "link": 3}
+      ],
+      "outputs": [],
+      "properties": {"Node name for S&R": "PreviewAudio"},
+      "widgets_values": []
+    },
+    {
+      "id": 5,
+      "type": "PreviewImage",
+      "pos": [940, 340],
+      "size": [320, 280],
+      "flags": {},
+      "order": 4,
+      "mode": 0,
+      "inputs": [
+        {"name": "images", "type": "IMAGE", "link": 4}
+      ],
+      "outputs": [],
+      "properties": {"Node name for S&R": "PreviewImage"},
+      "widgets_values": []
+    }
+  ],
+  "links": [
+    [1, 1, 0, 3, 0, "AUDIO"],
+    [2, 2, 0, 3, 1, "UNIVERSR_MODEL"],
+    [3, 3, 0, 4, 0, "AUDIO"],
+    [4, 3, 1, 5, 0, "IMAGE"]
+  ],
+  "groups": [],
+  "config": {},
+  "extra": {},
+  "version": 0.4
+}