diff --git a/dist/jni/TtsEngine.kt b/dist/jni/TtsEngine.kt
index ab7e08f..25c3d30 100644
--- a/dist/jni/TtsEngine.kt
+++ b/dist/jni/TtsEngine.kt
@@ -43,8 +43,9 @@ data class TtsResult(
 
 // Configuration sampling. Défauts validés sur fixture FR (cf project_tts_session_28may).
 data class TtsSampling(
-    val cpTemp: Float = 0.9f, val cpTopK: Int = 50, val cpTopP: Float = 1.0f, val cpRepPenalty: Float = 1.05f,
-    val talkerTemp: Float = 0.9f, val talkerTopK: Int = 50, val talkerTopP: Float = 1.0f, val talkerRepPenalty: Float = 1.05f
+    // Défauts validés à l'écoute (top_p=0.95 + rep=1.10 moins robotique vs 1.0/1.05).
+    val cpTemp: Float = 0.9f, val cpTopK: Int = 50, val cpTopP: Float = 0.95f, val cpRepPenalty: Float = 1.10f,
+    val talkerTemp: Float = 0.9f, val talkerTopK: Int = 50, val talkerTopP: Float = 0.95f, val talkerRepPenalty: Float = 1.10f
 )
 
 class TtsEngine(
diff --git a/dist/jni/tts_engine.cpp b/dist/jni/tts_engine.cpp
index bd569c2..fc55f4c 100644
--- a/dist/jni/tts_engine.cpp
+++ b/dist/jni/tts_engine.cpp
@@ -613,6 +613,17 @@ TtsSynthesizeResult tts_engine_synthesize(TtsEngine * eng, const TtsSynthesizeCf
     R.frames        = N_done;
     R.audio_s       = N_done / 12.0;
 
+    // Dump optionnel des codes pour analyse des attracteurs (KZTTS_DUMP_CODES=path).
+    // Format : int32 binaire [N, 16] time-major (= codes_engine raw).
+    if (const char * dump = getenv("KZTTS_DUMP_CODES")) {
+        FILE * f = fopen(dump, "wb");
+        if (f) {
+            fwrite(codes_engine.data(), sizeof(int32_t), codes_engine.size(), f);
+            fclose(f);
+            fprintf(stderr, "codes dumped to %s (%d frames × 16)\n", dump, N_done);
+        }
+    }
+
     // --- 8) Decoder final -> WAV ---
     // KZTTS_DECODER_SUBPROC=path/kazeia_decoder_chraac : fork+exec un sous-process décodeur
     // statiquement linké contre chraac (-22% sur decoder). Le talker reste qualcomm (qui marche).
diff --git a/dist/jni/tts_engine.h b/dist/jni/tts_engine.h
index d85e07c..0337f09 100644
--- a/dist/jni/tts_engine.h
+++ b/dist/jni/tts_engine.h
@@ -30,16 +30,19 @@ struct TtsSynthesizeCfg {
     int          max_steps     = 256;
     uint32_t     seed          = 42;
 
-    // Sampling (par défaut = défauts in-house validés sur fixture FR)
+    // Sampling : défauts validés à l'écoute (panel A/B) sur tts_engine + chraac subproc.
+    // top_p=0.95 + rep_penalty=1.10 : sweet spot moins robotique, moins de pauses 690
+    // doublées sur CB0 (cf TU.2 attracteurs identifiés). Ancien défaut top_p=1.0
+    // rep=1.05 disponible en surcharge via env KZTTS_REPP / KZTTS_TOPP.
     float cp_temp        = 0.9f;
     int   cp_top_k       = 50;
-    float cp_top_p       = 1.0f;
-    float cp_rep_penalty = 1.05f;
+    float cp_top_p       = 0.95f;
+    float cp_rep_penalty = 1.10f;
 
     float talker_temp        = 0.9f;
     int   talker_top_k       = 50;
-    float talker_top_p       = 1.0f;
-    float talker_rep_penalty = 1.05f;
+    float talker_top_p       = 0.95f;
+    float talker_rep_penalty = 1.10f;
 };
 
 struct TtsSynthesizeResult {
diff --git a/dist/jni/tts_pipeline.cpp b/dist/jni/tts_pipeline.cpp
index b57d74b..8a7252d 100644
--- a/dist/jni/tts_pipeline.cpp
+++ b/dist/jni/tts_pipeline.cpp
@@ -67,12 +67,12 @@ int main(int argc, char** argv) {
     sc.seed         = env_i("KZTTS_SEED", 42);
     sc.cp_temp        = env_f("KZTTS_CP_TEMP",  0.9f);
     sc.cp_top_k       = env_i("KZTTS_CP_TOPK",  50);
-    sc.cp_top_p       = env_f("KZTTS_CP_TOPP",  1.0f);
-    sc.cp_rep_penalty = env_f("KZTTS_CP_REPP",  1.05f);
+    sc.cp_top_p       = env_f("KZTTS_CP_TOPP",  0.95f);
+    sc.cp_rep_penalty = env_f("KZTTS_CP_REPP",  1.10f);
     sc.talker_temp        = env_f("KZTTS_TEMP", 0.9f);
     sc.talker_top_k       = env_i("KZTTS_TOPK", 50);
-    sc.talker_top_p       = env_f("KZTTS_TOPP", 1.0f);
-    sc.talker_rep_penalty = env_f("KZTTS_REPP", 1.05f);
+    sc.talker_top_p       = env_f("KZTTS_TOPP", 0.95f);
+    sc.talker_rep_penalty = env_f("KZTTS_REPP", 1.10f);
 
     auto R = tts_engine_synthesize(eng, sc);
     if (R.err) { fprintf(stderr, "tts_engine_synthesize FAIL err=%d\n", R.err); tts_engine_free(eng); return 4; }