diff --git a/subgen/subgen.py b/subgen/subgen.py
index 182a41b..0366f7a 100644
--- a/subgen/subgen.py
+++ b/subgen/subgen.py
@@ -25,11 +25,8 @@ import whisper
 import re
 
 def convert_to_bool(in_bool):
-    if isinstance(in_bool, bool):
-        return in_bool
-    else:
-        value = str(in_bool).lower()
-        return value not in ('false', 'off', '0', 0)
+    # Convert the input to string and lower case, then check against true values
+    return str(in_bool).lower() in ('true', 'on', '1')
 
 # Replace your getenv calls with appropriate default values here
 plextoken = os.getenv('PLEXTOKEN', 'token here')