output_filename = f"{re.sub('[^a-zA-Z0-9]', '_', prompt)}_{re.sub('[^a-zA-Z0-9]', '_', language)}"[:250] + ".wav"

app.py

@@ -1,5 +1,6 @@
 import sys
 import os
+import re
 import time
 import math
 import torch
@@ -67,7 +68,7 @@ def predict(prompt, language, gender, audio_file_pth, mic_file_path, use_mic):
         else:
             speaker_wav = "./examples/female.wav"
         
-    output_filename = f"{prompt.replace(' ', '_')}_{language}"[:250] + ".wav"
+    output_filename = f"{re.sub('[^a-zA-Z0-9]', '_', prompt)}_{re.sub('[^a-zA-Z0-9]', '_', language)}"[:250] + ".wav"
     
     try:
         if language == "fr":