Added sound oszilator for search display

src/app/pages/algorithms/sorting/service/sorting-audio.service.ts

@@ -0,0 +1,80 @@
+import { Injectable } from '@angular/core';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class SortingAudioService {
+  private audioContext: AudioContext | null = null;
+
+  private ensureContext(): AudioContext {
+    this.audioContext ??= new AudioContext();
+    if (this.audioContext.state === 'suspended') {
+      this.audioContext.resume();
+    }
+    return this.audioContext;
+  }
+
+  // Call this on the user gesture (button click) so the AudioContext can be created/resumed.
+  initOnUserGesture(): void {
+    this.ensureContext();
+  }
+
+  playTone(value: number, maxValue: number, animationSpeedMs: number): void {
+    const ctx = this.ensureContext();
+    const frequency = this.valueToFrequency(value, maxValue);
+
+    // Keep tone duration slightly shorter than the animation frame to avoid overlap
+    const duration = Math.min(0.1, (animationSpeedMs * 0.75) / 1000);
+
+    const oscillator = ctx.createOscillator();
+    const gainNode = ctx.createGain();
+
+    oscillator.connect(gainNode);
+    gainNode.connect(ctx.destination);
+
+    oscillator.type = 'sawtooth';
+    oscillator.frequency.setValueAtTime(frequency, ctx.currentTime);
+
+    gainNode.gain.setValueAtTime(0.15, ctx.currentTime);
+    gainNode.gain.exponentialRampToValueAtTime(0.001, ctx.currentTime + duration);
+
+    oscillator.start(ctx.currentTime);
+    oscillator.stop(ctx.currentTime + duration);
+  }
+
+  playSortedSweep(sortedValues: number[], maxValue: number): void {
+    const ctx = this.ensureContext();
+    // Play a quick ascending sweep through all sorted bar values
+    const step = Math.ceil(sortedValues.length / 40);
+    sortedValues.forEach((value, i) => {
+      if (i % step !== 0) {
+        return;
+      }
+      const delayMs = (i / step) * 18;
+      setTimeout(() => {
+        const frequency = this.valueToFrequency(value, maxValue);
+        const oscillator = ctx.createOscillator();
+        const gainNode = ctx.createGain();
+
+        oscillator.connect(gainNode);
+        gainNode.connect(ctx.destination);
+
+        oscillator.type = 'sine';
+        oscillator.frequency.setValueAtTime(frequency, ctx.currentTime);
+
+        gainNode.gain.setValueAtTime(0.15, ctx.currentTime);
+        gainNode.gain.exponentialRampToValueAtTime(0.001, ctx.currentTime + 0.06);
+
+        oscillator.start(ctx.currentTime);
+        oscillator.stop(ctx.currentTime + 0.06);
+      }, delayMs);
+    });
+  }
+
+  // Maps a bar value linearly to the frequency range 180–1100 Hz (roughly 3 octaves)
+  private valueToFrequency(value: number, maxValue: number): number {
+    const minFreq = 400;
+    const maxFreq = 800;
+    return minFreq + (value / maxValue) * (maxFreq - minFreq);
+  }
+}

src/app/pages/algorithms/sorting/sorting.component.html

@@ -37,6 +37,10 @@
         <button mat-raised-button (click)="generateNewArray()">
           <mat-icon>add_box</mat-icon> {{ 'SORTING.GENERATE_NEW_ARRAY' | translate }}
         </button>
+        <button mat-raised-button (click)="toggleSound()">
+          <mat-icon>{{ isSoundEnabled ? 'volume_up' : 'volume_off' }}</mat-icon>
+          {{ isSoundEnabled ? ('SORTING.SOUND_OFF' | translate) : ('SORTING.SOUND_ON' | translate) }}
+        </button>
       </div>
 
       <div class="controls-panel">

src/app/pages/algorithms/sorting/sorting.component.ts

@@ -7,6 +7,7 @@ import {MatButtonModule} from "@angular/material/button";
 import {MatIconModule} from "@angular/material/icon";
 import {TranslateModule} from "@ngx-translate/core";
 import { SortingService } from './service/sorting.service';
+import { SortingAudioService } from './service/sorting-audio.service';
 import {SortData, SortSnapshot} from './sorting.models';
 import { FormsModule } from '@angular/forms';
 import {MatInput} from '@angular/material/input';
@@ -22,6 +23,7 @@ import {Information} from '../information/information';
 export class SortingComponent implements OnInit {
 
   private readonly sortingService: SortingService = inject(SortingService);
+  private readonly audioService: SortingAudioService = inject(SortingAudioService);
   private readonly cdr: ChangeDetectorRef = inject(ChangeDetectorRef);
 
   readonly MAX_ARRAY_SIZE: number = 200;
@@ -70,9 +72,10 @@ export class SortingComponent implements OnInit {
   unsortedArrayCopy: SortData[] = [];
   arraySize = 50;
   maxArrayValue = 100;
-  animationSpeed = 50; // Milliseconds per step
+  animationSpeed = 100; // Milliseconds per step
   selectedAlgorithm: string = this.algoInformation.entries[0].name;
   executionTime = 0;
+  isSoundEnabled = false;
 
   ngOnInit(): void {
     this.generateNewArray();
@@ -117,8 +120,14 @@ export class SortingComponent implements OnInit {
     }
   }
 
+  toggleSound(): void {
+    this.isSoundEnabled = !this.isSoundEnabled;
+  }
+
   async startSorting(): Promise<void> {
     this.resetSorting();
+    // Init the AudioContext on this user gesture so the browser allows sound
+    this.audioService.initOnUserGesture();
     const startTime = performance.now();
     let snapshots: SortSnapshot[] = [];
 
@@ -156,11 +165,22 @@ export class SortingComponent implements OnInit {
           }
         }
 
+        if (this.isSoundEnabled) {
+          // Play a tone for each comparing bar (max 2 at once to avoid noise)
+          snapshot.array
+            .filter(item => item.state === 'comparing')
+            .slice(0, 2)
+            .forEach(item => this.audioService.playTone(item.value, this.maxArrayValue, this.animationSpeed));
+        }
+
         this.cdr.detectChanges();
 
         if (index === snapshots.length - 1) {
           this.sortArray.forEach(item => item.state = 'sorted');
           this.cdr.detectChanges();
+          if (this.isSoundEnabled) {
+            this.audioService.playSortedSweep(this.sortArray.map(item => item.value), this.maxArrayValue);
+          }
         }
       }, index * this.animationSpeed);
 

src/assets/i18n/de.json

@@ -364,6 +364,8 @@
     "START": "Sortierung starten",
     "RESET": "Zurücksetzen",
     "GENERATE_NEW_ARRAY": "Neues Array generieren",
+    "SOUND_ON": "Ton an",
+    "SOUND_OFF": "Ton aus",
     "EXECUTION_TIME": "Ausführungszeit",
     "ARRAY_SIZE": "Anzahl der Balken",
     "EXPLANATION": {

src/assets/i18n/en.json

@@ -364,6 +364,8 @@
     "START": "Start Sorting",
     "RESET": "Reset",
     "GENERATE_NEW_ARRAY": "Generate New Array",
+    "SOUND_ON": "Sound On",
+    "SOUND_OFF": "Sound Off",
     "EXECUTION_TIME": "Execution Time",
     "ARRAY_SIZE": "Number of Bars",
     "EXPLANATION": {