Update app.py

app.py

@@ -172,8 +172,12 @@ def run_pipeline(audio_path, src_lang="auto", tgt_lang="te",
         # ── Step 4: Export MP3 ───────────────────────────────────────
         yield progress(4, "⏳ Step 4/4 — Exporting...")
         final_mp3 = os.path.join(out_dir, "ClearWave_Final.mp3")
+        # FIX: Use 320kbps MP3 + preserve original sample rate (was 46kbps at 16kHz — very low quality)
         subprocess.run(["ffmpeg", "-y", "-i", clean,
-                        "-codec:a", "libmp3lame", "-qscale:a", "2",
+                        "-codec:a", "libmp3lame",
+                        "-b:a", "320k",          # 320kbps — high quality
+                        "-ar", "48000",          # restore 48kHz sample rate
+                        "-ac", "2",              # restore stereo
                         final_mp3], capture_output=True)
 
         audio_path_out = final_mp3 if os.path.exists(final_mp3) else clean