diff --git a/app/web/src/main.js b/app/web/src/main.js
index 57b1a8a..466f93e 100644
--- a/app/web/src/main.js
+++ b/app/web/src/main.js
@@ -604,6 +604,10 @@ async function openRecording(id) {
         bubble.className = `tbubble ${scls[tu.sp] || ''} arrow-${seat.side}`;
         bubble.style.left = '';
         bubble.style.top = '';
+        // Tail x-position along the top/bottom edge = the speaker's seat mapped
+        // into bubble-local coordinates (bubble is centred, BUBBLE_W wide).
+        const ax = Math.max(8, Math.min(92, (seat.x - (50 - BUBBLE_W / 2)) / BUBBLE_W * 100));
+        bubble.style.setProperty('--ax', ax.toFixed(1) + '%');
         bubble.querySelector('.tb-name').textContent = spkLabel(tu.sp, i >= 0 ? i : 0);
         // The full turn as clickable word spans — highlighted + scrolled below.
         bubble.querySelector('.tb-text').innerHTML =
@@ -746,11 +750,14 @@ function escapeHtml(s) { return (s || '').replace(/[&<>"]/g, c => ({ '&': '&amp;
 const SEAT_LAYOUTS = {
   1: [{ x: 50, y: 84, side: 'bottom' }],
   2: [{ x: 50, y: 14, side: 'top' }, { x: 50, y: 84, side: 'bottom' }],
-  3: [{ x: 50, y: 13, side: 'top' }, { x: 26, y: 84, side: 'bottomleft' }, { x: 74, y: 84, side: 'bottomright' }],
+  3: [{ x: 50, y: 13, side: 'top' }, { x: 26, y: 84, side: 'bottom' }, { x: 74, y: 84, side: 'bottom' }],
   4: [{ x: 50, y: 12, side: 'top' }, { x: 90, y: 50, side: 'right' }, { x: 50, y: 86, side: 'bottom' }, { x: 10, y: 50, side: 'left' }],
   5: [{ x: 32, y: 12, side: 'top' }, { x: 68, y: 12, side: 'top' }, { x: 90, y: 60, side: 'right' }, { x: 50, y: 86, side: 'bottom' }, { x: 10, y: 60, side: 'left' }],
-  6: [{ x: 32, y: 12, side: 'top' }, { x: 68, y: 12, side: 'top' }, { x: 90, y: 50, side: 'right' }, { x: 68, y: 86, side: 'bottomright' }, { x: 32, y: 86, side: 'bottomleft' }, { x: 10, y: 50, side: 'left' }],
+  6: [{ x: 32, y: 12, side: 'top' }, { x: 68, y: 12, side: 'top' }, { x: 90, y: 50, side: 'right' }, { x: 68, y: 86, side: 'bottom' }, { x: 32, y: 86, side: 'bottom' }, { x: 10, y: 50, side: 'left' }],
 };
+// Bubble width in scene-% (kept in sync with .tbubble in style.css) — needed to
+// map a seat's x onto the bubble edge so the tail points AT the speaker.
+const BUBBLE_W = 54;
 function tableSeats(n) { return SEAT_LAYOUTS[Math.min(6, Math.max(1, n))] || SEAT_LAYOUTS[6]; }
 
 // Toggle-button icons: three people around a table / a text sheet.
diff --git a/app/web/src/style.css b/app/web/src/style.css
index 9a2316f..15e2043 100644
--- a/app/web/src/style.css
+++ b/app/web/src/style.css
@@ -316,12 +316,10 @@ audio { width: 100%; margin-bottom: 10px; }
   display: none;
 }
 .tbubble[class*="arrow-"]::after { display: block; }
-.tbubble.arrow-top::after { top: -7px; left: 50%; transform: translateX(-50%) rotate(-135deg); }
-.tbubble.arrow-bottom::after { bottom: -7px; left: 50%; transform: translateX(-50%) rotate(45deg); }
+.tbubble.arrow-top::after { top: -7px; left: var(--ax, 50%); transform: translateX(-50%) rotate(-135deg); }
+.tbubble.arrow-bottom::after { bottom: -7px; left: var(--ax, 50%); transform: translateX(-50%) rotate(45deg); }
 .tbubble.arrow-left::after { left: -7px; top: 50%; transform: translateY(-50%) rotate(135deg); }
 .tbubble.arrow-right::after { right: -7px; top: 50%; transform: translateY(-50%) rotate(-45deg); }
-.tbubble.arrow-bottomleft::after { bottom: -7px; left: 22%; transform: rotate(45deg); }
-.tbubble.arrow-bottomright::after { bottom: -7px; right: 22%; transform: rotate(45deg); }
 .tidle { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); font-size: 13px; text-align: center; }
 #viewswitch svg { display: block; }
 
diff --git a/docs/08-changelog.md b/docs/08-changelog.md
index 2668580..08febf3 100644
--- a/docs/08-changelog.md
+++ b/docs/08-changelog.md
@@ -3,6 +3,13 @@
 Chronik der Entwicklungsschritte. **Regel: jede zukünftige Änderung bekommt hier einen Eintrag** (Datum,
 Was, Warum, betroffene Dateien/Backups).
 
+## 2026-07-17 — GUI: Blasen-Oeffnung zeigt exakt auf den Sprecher
+
+Bei mehreren Sprechern je Tischkante (5-/6-Sitz-Layouts) zeigte der Schwanz nur auf die Kantenmitte.
+Jetzt wird die Sitz-x-Position in Blasen-Koordinaten umgerechnet (CSS-Variable --ax, BUBBLE_W in
+main.js synchron zur CSS-Breite) — die Oeffnung wandert entlang der Ober-/Unterkante exakt zum
+Sprechenden; bottomleft/bottomright-Sonderklassen entfallen. Bundle `index-FKbNFs-A.js`.
+
 ## 2026-07-17 — GUI: Tisch-Blase fix, Oeffnung wandert zum Sprecher
 
 Feinschliff nach User-Feedback: Die Sprechblase liegt wieder FEST auf dem Tisch (54 % Breite),