Update README + metadata: severity recomputed from canonical speaker mapping (test Mild 197->421, Severe 438->214).

README.md

@@ -79,10 +79,10 @@ corpus×severity confound. All LibriSpeech rows are labelled
 ### By severity
 ```
 {
-  "Mild": 197,
+  "Mild": 421,
   "Moderate": 585,
   "Normal": 560,
-  "Severe": 438
+  "Severe": 214
 }
 ```
 
@@ -131,8 +131,15 @@ doesn't have to remap on the fly:
    prefix prevents speaker-invariance objectives, LSO splits, and per-speaker
    statistics from silently merging them.
 
-Other columns (`severity`, `diagnosis`, `condition`, `intelligibility`) are
-preserved verbatim from their source corpora.
+3. **`severity` is recomputed per speaker from the canonical mapping**
+   (TORGO: clinical severity from the TORGO speaker sheet; UA-Speech:
+   intelligibility banding → `Very-low (<=19%) -> Severe`,
+   `Low (28-39%) / Mid (58-62%) -> Moderate`, `High (>=86%) -> Mild`). This
+   corrects a prior UA-Speech labelling bug where `M01` was `Mild` and
+   `M09` / `M10` were `Severe`.
+
+Other columns (`diagnosis`, `condition`, `intelligibility`) are preserved
+verbatim from their source corpora.
 
 ## Schema
 

dataset_metadata.json

@@ -17,16 +17,16 @@
     "LibriSpeech": 280
   },
   "test_by_severity": {
-    "Mild": 197,
+    "Mild": 421,
     "Moderate": 585,
     "Normal": 560,
-    "Severe": 438
+    "Severe": 214
   },
   "test_allocation_by_severity": {
-    "Mild": 197,
+    "Mild": 421,
     "Moderate": 585,
     "Normal": 560,
-    "Severe": 438
+    "Severe": 214
   },
   "test_by_speaker": {
     "UA-Speech_M10": 193,
@@ -57,7 +57,48 @@
     "colliding_ids_fixed_across_TORGO_and_UA_Speech": [
       "M01",
       "M05"
-    ]
+    ],
+    "severity_recomputed_from_canonical_speaker_mapping": true
+  },
+  "speaker_severity_mapping": {
+    "TORGO": {
+      "M01": "Severe",
+      "M02": "Severe",
+      "M03": "Mild",
+      "M04": "Severe",
+      "M05": "Moderate",
+      "F01": "Severe",
+      "F03": "Moderate",
+      "F04": "Mild",
+      "MC01": "Normal",
+      "MC02": "Normal",
+      "MC03": "Normal",
+      "MC04": "Normal",
+      "FC01": "Normal",
+      "FC02": "Normal",
+      "FC03": "Normal"
+    },
+    "UA-Speech": {
+      "M01": "Severe",
+      "M04": "Severe",
+      "M12": "Severe",
+      "F03": "Severe",
+      "M05": "Moderate",
+      "M06": "Moderate",
+      "M07": "Moderate",
+      "M11": "Moderate",
+      "F02": "Moderate",
+      "F04": "Moderate",
+      "M03": "Moderate",
+      "F01": "Moderate",
+      "M08": "Mild",
+      "M09": "Mild",
+      "M10": "Mild",
+      "M14": "Mild",
+      "M02": "Mild",
+      "F05": "Mild"
+    },
+    "LibriSpeech": "Normal (all rows)"
   },
   "columns": [
     "audio",