Update tools/asr_tool.py

tools/asr_tool.py

@@ -1,9 +1,27 @@
 from faster_whisper import WhisperModel
+import os
 
-model = WhisperModel("base", device="cpu")
+# Globalt model för att undvika återladdning
+model = None
+
+def get_model():
+    global model
+    if model is None:
+        model = WhisperModel("base", device="cpu", compute_type="int8")
+    return model
 
 def transcribe_audio(audio_path: str) -> str:
-    segments, _ = model.transcribe(audio_path)
-    transcription = " ".join(segment.text for segment in segments)
-    return transcription or "No transcription found."
+    """Transkribera ljudfil till text"""
+    try:
+        if not os.path.exists(audio_path):
+            return f"Audio file not found: {audio_path}"
+        
+        model = get_model()
+        segments, info = model.transcribe(audio_path, beam_size=5)
+        
+        transcription = " ".join(segment.text for segment in segments)
+        return transcription.strip() or "No transcription found."
+    
+    except Exception as e:
+        return f"Error transcribing audio: {str(e)}"