diff --git a/aiia_browser_node.py b/aiia_browser_node.py
index daacbb2..ead0b64 100755
--- a/aiia_browser_node.py
+++ b/aiia_browser_node.py
@@ -248,6 +248,35 @@ async def get_video_poster(request):
         traceback.print_exc()
         return web.Response(status=500, text=str(e))
 
+async def delete_item(request):
+    data = await request.json()
+    relative_path_str = data.get("path", "")
+    filename = data.get("filename", "")
+    if not filename:
+        return web.Response(status=400, text="Filename is required.")
+
+    try:
+        file_path = get_safe_path(output_dir, os.path.join(relative_path_str, filename))
+        
+        if file_path.is_file():
+            os.remove(file_path)
+            # Also cleanup potential cache files
+            cache_thumb = get_safe_path(image_thumb_dir, os.path.join(relative_path_str, f"{file_path.stem}.jpg"))
+            if cache_thumb.exists(): os.remove(cache_thumb)
+            cache_poster = get_safe_path(video_poster_dir, os.path.join(relative_path_str, f"{file_path.stem}.jpg"))
+            if cache_poster.exists(): os.remove(cache_poster)
+            
+            return web.json_response({"status": "success", "message": f"File {filename} deleted."})
+        elif file_path.is_dir():
+            shutil.rmtree(file_path)
+            return web.json_response({"status": "success", "message": f"Directory {filename} deleted."})
+        else:
+            return web.Response(status=404, text="Item not found")
+
+    except Exception as e:
+        traceback.print_exc()
+        return web.Response(status=500, text=str(e))
+
 async def get_batch_metadata(request):
     data = await request.json()
     path = data.get("path", "")
@@ -336,6 +365,7 @@ server.PromptServer.instance.app.router.add_post('/api/aiia/v1/browser/get_batch
 server.PromptServer.instance.app.router.add_get('/api/aiia/v1/browser/thumbnail', get_thumbnail)
 server.PromptServer.instance.app.router.add_get('/api/aiia/v1/browser/poster', get_video_poster)
 server.PromptServer.instance.app.router.add_get('/api/aiia/v1/browser/get_workflow', get_workflow)
+server.PromptServer.instance.app.router.add_post('/api/aiia/v1/browser/delete_item', delete_item)
 
 NODE_CLASS_MAPPINGS = {}
 NODE_DISPLAY_NAME_MAPPINGS = {}
\ No newline at end of file
diff --git a/js/aiia_browser.js b/js/aiia_browser.js
index 72ec279..ebca68b 100755
--- a/js/aiia_browser.js
+++ b/js/aiia_browser.js
@@ -76,7 +76,7 @@ class AIIABrowserDialog extends ComfyDialog {
         this.iconView = { resizeObserver: null, columns: 0, rowHeight: 0, activeNodes: new Map(), nodePool: [], mediaCache: new Map() };
         this.applyFocusRaf = null;
         this.iconLoadTimers = new Map();
-        
+
         this.outsideClickListener = null;
 
         this.tooltipImage = $el("img.aiia-tooltip-image");
@@ -300,6 +300,25 @@ class AIIABrowserDialog extends ComfyDialog {
             }
         }
     }
+    async deleteItem(itemName) {
+        if (!itemName) return;
+        if (!confirm(`Are you sure you want to delete "${itemName}"? This action cannot be undone.`)) return;
+        try {
+            const res = await api.fetchApi('/aiia/v1/browser/delete_item', {
+                method: 'POST',
+                body: JSON.stringify({ path: this.currentPath, filename: itemName })
+            });
+            if (!res.ok) throw new Error(`HTTP ${res.status}: ${await res.text()}`);
+            const result = await res.json();
+            if (result.status === 'success') {
+                this.setFocus(null, null);
+                this.refreshCurrentDirectory();
+            }
+        } catch (e) {
+            alert(`Error deleting item: ${e.message}`);
+            console.error(e);
+        }
+    }
     updateTooltipSizeLimits() { const rect = this.contentPanel.getBoundingClientRect(); const maxSize = Math.min(rect.width, rect.height) * 0.30; this.tooltipElement.style.setProperty('--aiia-tooltip-media-max-size', `${maxSize}px`); }
     updateSortControls() { this.sortKeySelect.value = this.sortKey; this.sortDirButton.textContent = this.sortDir === 'asc' ? '▲' : '▼'; this.sortDirButton.dataset.tooltipText = `Sort ${this.sortDir === 'asc' ? 'Descending' : 'Ascending'}`; }
     showPathInput() { this.breadcrumbs.style.display = 'none'; this.pathInputContainer.style.display = 'flex'; this.pathInput.value = this.currentPath; this.pathInput.focus(); this.pathInput.select(); }
@@ -1313,11 +1332,15 @@ class AIIABrowserDialog extends ComfyDialog {
 
         if ((target.tagName === 'INPUT' && target !== this.pathInput) || target.tagName === 'SELECT') return;
 
-        const keyMap = { 'ArrowUp': 'moveFocus', 'ArrowDown': 'moveFocus', 'ArrowLeft': 'moveFocus', 'ArrowRight': 'moveFocus', 'Enter': 'activateFocusedItem', ' ': 'toggleTooltipForFocusedItem', 'Escape': 'close' };
+        const keyMap = { 'ArrowUp': 'moveFocus', 'ArrowDown': 'moveFocus', 'ArrowLeft': 'moveFocus', 'ArrowRight': 'moveFocus', 'Enter': 'activateFocusedItem', ' ': 'toggleTooltipForFocusedItem', 'Escape': 'close', 'Delete': 'deleteFocusedItem' };
         if (keyMap[e.key]) {
             e.preventDefault(); e.stopPropagation();
             this.isKeyboardNavigating = true;
             if (keyMap[e.key] === 'moveFocus') this.moveFocus(e.key);
+            else if (keyMap[e.key] === 'deleteFocusedItem') {
+                const item = this.getAllNavigableItems()[this.currentFocusIndex];
+                if (item) this.deleteItem(item.name);
+            }
             else this[keyMap[e.key]]();
         }
     }
diff --git a/libs/Ditto/core/atomic_components/audio2motion.py b/libs/Ditto/core/atomic_components/audio2motion.py
index 370d843..3fff34f 100644
--- a/libs/Ditto/core/atomic_components/audio2motion.py
+++ b/libs/Ditto/core/atomic_components/audio2motion.py
@@ -161,7 +161,7 @@ class Audio2Motion:
 
         return res_kp_seq
     
-    def _update_kp_cond(self, res_kp_seq, idx):
+    def _update_kp_cond(self, res_kp_seq, idx, step_len=0):
         # [v1.9.144] Unconditional State Tracking
         # We process these outside the fix_kp_cond branches to ensure monitoring never stops.
         last_pose = res_kp_seq[:, idx-1]
@@ -175,11 +175,25 @@ class Audio2Motion:
         self.global_time += 1
         delta_p = pitch_deg - self.s_pitch_deg
         
-        # [v1.9.149] Pulse Heartbeat (Every Chunk)
-        # 1:1 log frequency to eliminate blind spots
+        # [v1.9.150] Detailed Diagnostic Pulse
+        # Always output current frame pitch and silence status
         real_f = res_kp_seq.shape[1]
         tag = "[Postural HEARTBEAT]" if self.look_up_timer <= 50 else "[RECOVERY ACTIVE]"
-        print(f"{tag} Frame {real_f} | Raw={pitch_deg:.2f}° | Delta={delta_p:+.2f}° | Timer={self.look_up_timer}/50")
+        print(f"{tag} Frame {real_f:04d} | Delta={delta_p:+.2f}° | Silence={self.silence_frames:03d} | Timer={self.look_up_timer}/50")
+
+        # 5. Postural Auto-Correction Logic [v1.9.150 Robustness Patch]
+        # Shorten silence threshold to 25 frames (1 second) to combat jittery audio
+        # Only trigger if notably higher than source (> 2.0 deg Higher -> Delta < -2.0)
+        if self.silence_frames >= 25 and delta_p < -2.0:
+            self.look_up_timer += step_len
+            if self.look_up_timer > 50:
+                 print(f"[正在执行纠偏] Frame {real_f} | Delta={delta_p:+.2f}° | Active Down-Pull engaged.")
+        else:
+            # ONLY RESET if we are back in the safe zone (Hysteresis)
+            if delta_p >= -0.5:
+                 if self.look_up_timer > 50:
+                      print(f"[Postural] Recovery Finished (Delta={delta_p:+.2f}°). Timer reset.")
+                 self.look_up_timer = 0
 
         if self.fix_kp_cond == 0:  # 不重置
             # 1. Silence Intensity Boost
@@ -213,23 +227,10 @@ class Audio2Motion:
             brow_indices = [217, 218, 220]
             brow_jitter = np.random.normal(0, 0.015 * boost_factor, len(brow_indices)).astype(np.float32)
             
-            # 5. Postural Auto-Correction (Anti-Stall) - [v1.9.149 Frame-Sync Fix]
-            if self.silence_frames > 50 and delta_p < -2.0:
-                # v1.149: Increment by frames added, not just 1.
-                self.look_up_timer += self.valid_clip_len
-                if self.look_up_timer > 50:
-                     diag_tag = "[正在执行纠偏]"
-                     print(f"{diag_tag} Frame {real_f} | Delta={delta_p:+.2f}° | Push-Down Active")
-            else:
-                # Reset only if significantly recovered (Hysteresis)
-                if delta_p > -0.5:
-                     if self.look_up_timer > 50:
-                         print(f"[Postural] Recovery Finished at Delta={delta_p:+.2f}°. Timer Reset.")
-                     self.look_up_timer = 0
-            
             gravity_vec = np.ones_like(last_pose) * 0.05
             if self.look_up_timer > 50:
                 gravity_vec[0, 1:67] = 0.20
+            
             # 6. Integration
             next_pose = last_pose + noise
             for i, idx_in_kp in enumerate(brow_indices):
@@ -342,7 +343,7 @@ class Audio2Motion:
         self.clip_idx += 1
 
         idx = res_kp_seq.shape[1] - self.overlap_v2
-        self._update_kp_cond(res_kp_seq, idx)
+        self._update_kp_cond(res_kp_seq, idx, step_len=step_len)
 
         return res_kp_seq
     
diff --git a/pyproject.toml b/pyproject.toml
index dabdacc..e57034e 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 = "1.9.149"
+version = "1.9.151"
 license = {file = "LICENSE"}
 readme = "README.md"
 authors = [