Update tts_engine.py

tts_engine.py

@@ -1,13 +1,12 @@
 import os
 from TTS.api import TTS
 
-# Map our app languages → Coqui TTS codes
 LANG_MAP = {
     "english": "en",
-    "yoruba": "en",   # no native Yoruba model, fallback to English phonemes
-    "hausa": "en",    # same here, fallback
-    "igbo": "en",     # same here
-    "pidgin": "en",   # close enough to English
+    "yoruba": "en",
+    "hausa": "en",
+    "igbo": "en",
+    "pidgin": "en",
     "esan": "en",
     "tiv": "en",
     "calabar": "en",
@@ -22,7 +21,6 @@ class TTSEngine:
         self.tts = None
 
         if self.use_coqui:
-            # Multilingual model (limited codes available)
             self.tts = TTS(
                 "tts_models/multilingual/multi-dataset/your_tts",
                 progress_bar=False,
@@ -30,19 +28,16 @@ class TTSEngine:
             )
 
     def speak(self, text, lang="english", voice_clone=False):
-        """
-        Returns path to generated audio file (for Gradio playback).
-        """
         if not text:
             return None
 
         out_file = "output.wav"
 
         if self.use_coqui:
-            # normalize language
             lang_code = LANG_MAP.get(lang.lower(), "en")
 
             if voice_clone and os.path.exists("my_voice.wav"):
+                # clone your own voice
                 self.tts.tts_to_file(
                     text=text,
                     file_path=out_file,
@@ -50,13 +45,14 @@ class TTSEngine:
                     language=lang_code
                 )
             else:
+                # fallback to a neutral synthetic voice
                 self.tts.tts_to_file(
                     text=text,
                     file_path=out_file,
+                    speaker_wav=None,   # Let model pick default embedding
                     language=lang_code
                 )
         else:
-            # Lazy import to avoid HF crash
             import pyttsx3
             engine = pyttsx3.init()
             engine.save_to_file(text, out_file)