Improve phase trail and correlation controls

www/core/audio.js

@@ -1,7 +1,12 @@
 // core/audio.js — Phoenix Audio-Init, Metrics-WS, Waveform/Spectrogram buffers
 // Wird von main.js mit `initAudio(env)` gestartet. Nutzt env.config (CONFIG) und env.meters.
 
-import { applyPhoenixGlobalConfig, buildPhoenixGlobalConfigPayload, saveConfig } from './config.js';
+import {
+  applyPhoenixGlobalConfig,
+  buildPhoenixGlobalConfigPayload,
+  normalizeCorrelationResponseSeconds,
+  saveConfig,
+} from './config.js';
 import { decodePhoenixSpectroBuffer, decodePhoenixVisualsBuffer } from './binary_protocol.js';
 import { getRtwCenters } from './rtw_centers.js';
 
@@ -943,7 +948,10 @@ export function buildRtaRuntimeConfig(CONFIG = {}) {
     ppmEbuDecayDbPerS: 24 / 2.8,
     lufsIWindowMin: Number.isFinite(CONFIG.LUFS_I_WINDOW_MIN) ? CONFIG.LUFS_I_WINDOW_MIN : 4,
     lufsINormEnabled: !!CONFIG.LUFS_I_NORM_ENABLED,
-    correlationResponseS: Number(CONFIG.CORR_RESPONSE_S) >= 1.75 ? 2.5 : 1.0,
+    correlationResponseS: normalizeCorrelationResponseSeconds(CONFIG.CORR_RESPONSE_S),
+    correlationSilenceThresholdRmsDbfs: Number.isFinite(CONFIG.CORR_SILENCE_THRESHOLD_RMS_DBFS)
+      ? Math.max(-90, Math.min(-40, CONFIG.CORR_SILENCE_THRESHOLD_RMS_DBFS))
+      : -75,
     correlationResetToken: Math.max(0, Math.floor(Number(CONFIG.CORR_RESET_TOKEN) || 0)),
     xyPoints: [128, 256, 512, 1024, 2048].includes(Number(CONFIG.XY_POINTS))
       ? Number(CONFIG.XY_POINTS)

www/core/config.js

@@ -1,5 +1,13 @@
 // core/config.js — zentrale CONFIG + Presets + Persistenz
 
+export function normalizeCorrelationResponseSeconds(value) {
+  const seconds = Number(value);
+  if (!Number.isFinite(seconds) || seconds <= 0) return 1.0;
+  if (seconds < 0.75) return 0.5;
+  if (seconds < 1.75) return 1.0;
+  return 2.5;
+}
+
 function isLoopbackHost(host) {
   const h = String(host || '').trim().toLowerCase();
   return h === 'localhost' || h === '127.0.0.1' || h === '::1' || h === '[::1]';
@@ -971,7 +979,7 @@ function loadConfig(opts = {}) {
       const fallback = Number.isFinite(CONFIG.GONIO_DISPLAY_GAIN_DB) ? CONFIG.GONIO_DISPLAY_GAIN_DB : 0;
       CONFIG.GONIO_MANUAL_GAIN_DB = Math.max(-35, Math.min(35, Math.round(fallback / 5) * 5));
     }
-    CONFIG.CORR_RESPONSE_S = Number(CONFIG.CORR_RESPONSE_S) >= 1.75 ? 2.5 : 1.0;
+    CONFIG.CORR_RESPONSE_S = normalizeCorrelationResponseSeconds(CONFIG.CORR_RESPONSE_S);
     const corrNegativeMarkerMode = String(CONFIG.CORR_NEGATIVE_MARKER_MODE || 'memory').toLowerCase();
     CONFIG.CORR_NEGATIVE_MARKER_MODE = ['memory', 'hold', 'off'].includes(corrNegativeMarkerMode)
       ? corrNegativeMarkerMode