Update index.html

index.html

@@ -637,15 +637,15 @@
                 updatePlaybackRate(speed);
             });
             
-            // 再生速度を更新 (音の高さを保持)
+
             function updatePlaybackRate(speed) {
                 currentPlaybackRate = speed;
                 video.playbackRate = speed;
                 
-                // 音声の再生速度を変更 (SoundTouchJSが音の高さを保持)
+                // 音声の再生速度を変更
                 audioFiles.forEach(file => {
-                    if (soundTouchNodes[file]) {
-                        soundTouchNodes[file].tempo = speed;
+                    if (audioSources[file]) {
+                        audioSources[file].processor.tempo = speed;
                     }
                 });
             }
@@ -677,25 +677,19 @@
                 }
             }
             
-            // 音声ファイルを読み込む
-    function loadAudioFiles() {
-      audioFiles.forEach(file => {
-        fetch(`${file}.mp3`)
-          .then(response => response.arrayBuffer())
-          .then(arrayBuffer => audioContext.decodeAudioData(arrayBuffer))
-          .then(audioBuffer => {
-            audioBuffers[file] = audioBuffer;
-            gainNodes[file] = audioContext.createGain();
-            gainNodes[file].gain.value = 1;
-            
-            // SoundTouchノードを作成
-            soundTouchNodes[file] = new window.soundtouch.SoundTouch(audioBuffer.sampleRate);
-            soundTouchNodes[file].tempo = currentPlaybackRate;
-            soundTouchNodes[file].pitch = 1;
-          })
-          .catch(error => console.error(`Error loading ${file}.mp3:`, error));
-      });
-    }
+            async function loadAudioFiles() {
+                for (const file of audioFiles) {
+                    try {
+                        const response = await fetch(`${file}.mp3`);
+                        const arrayBuffer = await response.arrayBuffer();
+                        audioBuffers[file] = await audioContext.decodeAudioData(arrayBuffer);
+                        gainNodes[file] = audioContext.createGain();
+                        gainNodes[file].gain.value = 1;
+                    } catch (error) {
+                        console.error(`Error loading ${file}.mp3:`, error);
+                    }
+                }
+            }
             
             function playAudio(file, startTime) {
                 if (!audioBuffers[file]) return;
@@ -750,28 +744,26 @@
                 audioSources[file] = pitchShifter;
             }
 
-    // 一時停止関数も修正
-    function pauseMedia() {
-      if (!isPlaying) return;
-      
-      video.pause();
-      audioFiles.forEach(file => {
-        if (audioSources[file]) {
-          try {
-            audioSources[file].source.stop();
-            audioSources[file].processor.disconnect();
-          } catch(e) {
-            console.log("Audio source already stopped");
-          }
-          audioSources[file] = null;
-        }
-      });
-      
-      isPlaying = false;
-      isVideoPlaying = false;
-      playPauseBtn.textContent = '▶';
-    }
-            
+            function pauseMedia() {
+                if (!isPlaying) return;
+                
+                video.pause();
+                audioFiles.forEach(file => {
+                    if (audioSources[file]) {
+                        try {
+                            audioSources[file].source.stop();
+                            audioSources[file].processor.disconnect();
+                        } catch (e) {
+                            console.log("Audio source already stopped");
+                        }
+                        audioSources[file] = null;
+                    }
+                });
+                
+                isPlaying = false;
+                isVideoPlaying = false;
+                playPauseBtn.textContent = '▶';
+            }
             // 再生関数
             function playMedia() {
                 const startTime = video.currentTime;