diff --git a/TTS/engine_wrapper.py b/TTS/engine_wrapper.py
index a06b4b9..ffabd35 100644
--- a/TTS/engine_wrapper.py
+++ b/TTS/engine_wrapper.py
@@ -95,9 +95,13 @@ class TTSEngine:
     def call_tts(self, filename: str, text: str):
         self.tts_module.run(text=process_text(text), filepath=f"{self.path}/{filename}.mp3")
         try:
-            self.length += MP3(f"{self.path}/{filename}.mp3").info.length
-        except (MutagenError, HeaderNotFoundError):
-            self.length += sox.file_info.duration(f"{self.path}/{filename}.mp3")
+            try:
+                self.length += MP3(f"{self.path}/{filename}.mp3").info.length
+            except (MutagenError, HeaderNotFoundError):
+                self.length += sox.file_info.duration(f"{self.path}/{filename}.mp3")
+        except Exception: # last resort backup
+            clip = AudioFileClip(f"{self.path}/{filename}.mp3")
+            self.length += clip.duration
 
 def process_text(text: str):
     lang = getenv("POSTLANG", "")