From 52208a98a962f072c1360e477d94b59703fcd2ce Mon Sep 17 00:00:00 2001
From: Hawk Lee <l.y@live.cn>
Date: Fri, 23 Jan 2026 16:26:02 +0800
Subject: [PATCH] v1.9.83: High-Sensitivity Blink Detection & Dampening

---
 .../core/atomic_components/motion_stitch.py   | 24 +++++++++++++------
 pyproject.toml                                |  2 +-
 2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/libs/Ditto/core/atomic_components/motion_stitch.py b/libs/Ditto/core/atomic_components/motion_stitch.py
index 11b03d7..4f3e7d0 100644
--- a/libs/Ditto/core/atomic_components/motion_stitch.py
+++ b/libs/Ditto/core/atomic_components/motion_stitch.py
@@ -638,15 +638,21 @@ class MotionStitch:
                 # Detect Blink Strength (Avg of Index 34)
                 blink_strength = float(safe_right_blink.mean())
                 
-                # [Fix v1.9.82] Lower Threshold significantly (0.1 -> 0.005)
-                # Actual signals are ~0.02, so 0.1 never triggered.
-                if blink_strength > 0.005: 
-                     # Dampen Logic: Stronger blink = Stronger dampening.
-                     # Scale: 0.005 -> 0.02 range mapping to 1.0 -> 0.2 factor
-                     ratio = (blink_strength - 0.005) / 0.015 # 0.0 to 1.0
+                # [Fix v1.9.83] High-Sensitivity Blink Detection & Dampening
+                # User reports mouth twitch persists.
+                # Strategy:
+                # 1. Threshold -> 0.002 (Capture even micro-blinks).
+                # 2. Dampening -> Stronger active suppression (up to 95%).
+                # 3. Log -> Print "[AIIA DAMP]" to confirm trigger.
+
+                if blink_strength > 0.002: 
+                     # Ratio logic: 0.002 -> 0.01 mapping to 0.0 -> 1.0
+                     ratio = (blink_strength - 0.002) / 0.008 
                      ratio = min(max(ratio, 0.0), 1.0)
                      
-                     damp_factor = 1.0 - (ratio * 0.8) # 1.0 down to 0.2
+                     # Max Dampening: 0.05 (retain only 5% motion)
+                     # Damp factor goes from 1.0 (no damp) to 0.05 (freeze)
+                     damp_factor = 1.0 - (ratio * 0.95)
                      
                      # Indices to Dampen:
                      # 6 (CornerL), 12 (CornerR), 14 (Lip), 17, 19, 20 (Mouth)
@@ -654,6 +660,10 @@ class MotionStitch:
                      
                      x_d_info["exp"][:, mouth_indices] *= damp_factor
                      
+                     # Debug Log (Temporary)
+                     if damp_factor < 0.9:
+                         print(f"[AIIA DAMP] Frame {self.idx}: Blink={blink_strength:.4f} | Damping Mouth x{damp_factor:.2f}")
+                     
                      # Also dampen "Sneer" or other cheek muscles if possible (Index 8/9?)
                      # For now, targeting corners (6/12) is most critical.
 
diff --git a/pyproject.toml b/pyproject.toml
index f63b92c..838acc6 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "aiia"
 description = "The Ultimate AI Audio/Video toolkit for ComfyUI. Features an enhanced Ditto (with optimizations that outperform official demos and other SOTA talking head models in lip-sync accuracy and natural motion), EchoMimic V3 & FLOAT, VibeVoice & CosyVoice 3.0 (Zero-Shot Voice Cloning), Multi-Role Podcast Generation, and a powerful Media Browser."
-version = "1.9.82"
+version = "1.9.83"
 license = {file = "LICENSE"}
 readme = "README.md"
 authors = [