diff --git a/frontend/src/views/DiaryView.vue b/frontend/src/views/DiaryView.vue
index d89f086..9d36492 100644
--- a/frontend/src/views/DiaryView.vue
+++ b/frontend/src/views/DiaryView.vue
@@ -311,30 +311,30 @@
         <div v-if="showImage" class="memberImage">
             <img :src="imageUrl" @click="closeImage" />
         </div>
-    </div>
-    <div v-if="showAccidentForm" class="accidentForm">
-        <form @submit.prevent="submitAccident">
-            <div>
-                <label for="memberId">Mitglied:</label>
-                <select id="memberId" v-model="accident.memberId">
-                    <template v-for="member in members" :key="member.id" :value="member.id">
-                        <option v-if="participants.indexOf(member.id) >= 0" :value="member.id">{{ member.firstName + ' '
-                            + member.lastName }}</option>
-                    </template>
-                </select>
-            </div>
-            <div>
-                <label for="accident">Unfall:</label>
-                <textarea id="accident" v-model="accident.accident" required></textarea>
-            </div>
-            <button type="button" @click="saveAccident">Eintragen</button>
-            <button type="button" @click="closeAccidentForm">Schießen</button>
-            <ul>
-                <li v-for="accident in accidents" :key="accident.id">{{ accident.firstName + ' ' + accident.lastName +
-                    ': '
-                    + accident.accident}}</li>
-            </ul>
-        </form>
+        <div v-if="showAccidentForm" class="accidentForm">
+            <form @submit.prevent="submitAccident">
+                <div>
+                    <label for="memberId">Mitglied:</label>
+                    <select id="memberId" v-model="accident.memberId">
+                        <template v-for="member in members" :key="member.id" :value="member.id">
+                            <option v-if="participants.indexOf(member.id) >= 0" :value="member.id">{{ member.firstName + ' '
+                                + member.lastName }}</option>
+                        </template>
+                    </select>
+                </div>
+                <div>
+                    <label for="accident">Unfall:</label>
+                    <textarea id="accident" v-model="accident.accident" required></textarea>
+                </div>
+                <button type="button" @click="saveAccident">Eintragen</button>
+                <button type="button" @click="closeAccidentForm">Schießen</button>
+                <ul>
+                    <li v-for="accident in accidents" :key="accident.id">{{ accident.firstName + ' ' + accident.lastName +
+                        ': '
+                        + accident.accident}}</li>
+                </ul>
+            </form>
+        </div>
     </div>
 </template>
 
@@ -398,9 +398,12 @@ export default {
             tagHistoryMember: null,
             tagHistory: null,
             intermediateTimes: [],
-            bellSound: new Audio('/sound/bell-123742.mp3'),
-            thumbSound: new Audio('/sound/thump-105302.mp3'),
+            bellSound: null,
+            thumbSound: null,
+            soundEnabled: true,
+            debugSound: true,
             timeChecker: null,
+            playedActivityMarks: [],
             showAccidentForm: false,
             accident: {
                 memberId: '',
@@ -465,6 +468,8 @@ export default {
             }
         },
 
+        
+
         async refreshDates(selectId) {
             const response = await apiClient.get(`/diary/${this.currentClub}`);
             this.dates = response.data.map(entry => ({ id: entry.id, date: entry.date }));
@@ -592,7 +597,7 @@ export default {
                 const response = await apiClient.get(`/group/${this.currentClub}/${this.date.id}`);
                 this.groups = response.data;
             } catch (error) {
-                console.log(error);
+                // ignore
             }
         },
 
@@ -1168,6 +1173,7 @@ export default {
             if (this.timeChecker) clearInterval(this.timeChecker);
             this.timeChecker = setInterval(() => {
                 const currentTime = new Date().toLocaleTimeString('de-DE', { hour: '2-digit', minute: '2-digit', second: '2-digit' });
+                // Zeit-Check Tick
                 if (!this.trainingStart || !this.trainingEnd) {
                     return;
                 }
@@ -1183,40 +1189,80 @@ export default {
                 }
                 if (startCheckTime && currentTime === startCheckTime) {
                     this.playBellSound();
-                }
-                if (endCheckTime && currentTime === endCheckTime) {
+                } else if (endCheckTime && currentTime === endCheckTime) {
                     this.playBellSound();
+                } else {
+                    // Nach letzter Aktivität (Ende) nochmal Glocke
+                    try { this.calculateAllItemTimes(); } catch (e) {}
+                    const items = Array.isArray(this.trainingPlan) ? this.trainingPlan : [];
+                    const lastItem = items.length ? items[items.length - 1] : null;
+                    const lastEnd = lastItem && lastItem.endTime ? lastItem.endTime : null;
+                    const lastEndSS = lastEnd ? (lastEnd.length === 5 ? lastEnd + ':00' : lastEnd) : null;
+                    const lastEndMM = lastEndSS ? lastEndSS.slice(0, 5) : null;
+                    const currentHHMM = currentTime.slice(0, 5);
+                    if (lastEndSS && (currentTime === lastEndSS || (currentTime.endsWith(':00') && currentHHMM === lastEndMM))) {
+                        this.playBellSound();
+                    }
                 }
-                if (this.intermediateTimes.includes(currentTime)) {
+                // Aktivitätszeiten (Startzeiten) aus Trainingsplan prüfen
+                try { this.calculateAllItemTimes(); } catch (e) {}
+                const items = Array.isArray(this.trainingPlan) ? this.trainingPlan : [];
+                const startTimesSS = items
+                    .map(it => (it && it.startTime ? (it.startTime.length === 5 ? it.startTime + ':00' : it.startTime) : null))
+                    .filter(Boolean);
+                const startTimesMM = startTimesSS.map(t => t.slice(0, 5));
+                const currentHHMM = currentTime.slice(0, 5);
+                const isMatch = startTimesSS.includes(currentTime) || (currentTime.endsWith(':00') && startTimesMM.includes(currentHHMM));
+                if (isMatch) {
                     this.playThumbSound();
                 }
             }, 1000);
         },
 
         playBellSound() {
-            this.bellSound.play();
+            if (!this.soundEnabled) return;
+            try {
+                this.bellSound && this.bellSound.play();
+            } catch (e) {
+                // ignore
+            }
         },
 
         playThumbSound() {
-            this.thumbSound.play();
+            if (!this.soundEnabled) return;
+            try {
+                this.thumbSound && this.thumbSound.play();
+            } catch (e) {
+                // ignore
+            }
         },
 
         calculateIntermediateTimes() {
+            // Stelle sicher, dass alle startTime-Werte aktuell sind
+            try { this.calculateAllItemTimes(); } catch(e) {}
             if (!this.trainingPlan || this.trainingPlan.length === 0) {
                 this.intermediateTimes = [];
                 return;
             }
-            let times = [];
-            let currentTime = new Date("2025-01-01 " + this.trainingStart);
-            this.trainingPlan.forEach(item => {
-                const rawItem = JSON.parse(JSON.stringify(item));
-                currentTime.setMinutes(currentTime.getMinutes() + item.duration);
-                times.push(currentTime.toTimeString({ hours: '2-digit', minutes: '2-digit', seconds: '2-digit' }).slice(0, 8));
-            });
-            times = [...new Set(times)].sort();
-            this.intermediateTimes = times.filter(time =>
-                time !== this.trainingStart && time !== this.trainingEnd
-            );
+            function withSeconds(hhmm) {
+                if (!hhmm) return null;
+                const parts = hhmm.split(':');
+                if (parts.length < 3) return hhmm + ':00';
+                return hhmm;
+            }
+            const times = [];
+            for (const item of this.trainingPlan) {
+                if (item && item.startTime) {
+                    const t = withSeconds(item.startTime);
+                    if (t) times.push(t);
+                }
+            }
+            const normalizedStart = withSeconds(this.trainingStart);
+            const unique = Array.from(new Set(times));
+            const filtered = unique.filter(t => t !== normalizedStart);
+            filtered.sort();
+            this.intermediateTimes = filtered;
+            
         },
 
         async addAccident() {
@@ -1402,6 +1448,14 @@ export default {
     },
     async mounted() {
         await this.init();
+        // Versuche, Audio erst bei Nutzerinteraktion zu initialisieren (Autoplay-Policy)
+        const tryInit = () => {
+            if (!this.bellSound) this.bellSound = new Audio('/sound/bell-123742.mp3');
+            if (!this.thumbSound) this.thumbSound = new Audio('/sound/thump-105302.mp3');
+            this.soundEnabled = true;
+            window.removeEventListener('click', tryInit, { once: true });
+        };
+        window.addEventListener('click', tryInit, { once: true });
     },
     beforeUnmount() {
         if (this.timeChecker) {