Fix Whisper transcription: save bytes to file before processing

app.py

@@ -113,8 +113,17 @@ def transcribe_audio_whisper(audio_file):
         # Load Whisper model (will be done on GPU)
         model = whisper.load_model("small")
 
+        # Save uploaded audio to temporary file for processing
+        with tempfile.NamedTemporaryFile(suffix=".wav", delete=False) as temp_audio:
+            temp_audio_path = temp_audio.name
+            with open(temp_audio_path, "wb") as f:
+                f.write(audio_file)
+
         # Transcribe the audio
-        result = model.transcribe(audio_file)
+        result = model.transcribe(temp_audio_path)
+
+        # Clean up temporary file
+        os.unlink(temp_audio_path)
 
         return result["text"].strip()