fix audio issue

src/app/pronunciation/pronunciation.component.ts

@@ -188,7 +188,8 @@ export class PronunciationComponent implements OnDestroy, OnInit {
       const staticPath = this.getStaticTeacherAudioPath(this.word);
       this.isTeacherLoading = true;
       try {
-        const resp = await fetch(staticPath, { method: 'HEAD' });
+        // Use GET instead of HEAD – HF serves GET correctly
+        const resp = await fetch(staticPath, { method: 'GET' });
         if (resp.ok) {
           this.teacherAudioCache.set(this.word, staticPath);
           this.playAudioWithWaveform(staticPath, 'teacher');
@@ -201,6 +202,7 @@ export class PronunciationComponent implements OnDestroy, OnInit {
       this.isTeacherLoading = false;
     }
 
+
     const cached = this.teacherAudioCache.get(this.word);
     if (cached) {
       this.isTeacherLoading = true;
@@ -213,7 +215,7 @@ export class PronunciationComponent implements OnDestroy, OnInit {
 
     // Try streaming audio bytes from the backend (no server-side file). Fallback to existing blob/url flows.
     this.api.generateTeacherAudioStream(this.word, this.selectedFile).subscribe({
-      next: (blob) => {
+      next: (blob:any) => {
         try {
           const objUrl = URL.createObjectURL(blob);
           const prev = this.teacherAudioCache.get(this.word);