add japanese support

app.py

@@ -53,6 +53,12 @@ model_path = os.path.join(
 )
 config = XttsConfig()
 config.load_json(os.path.join(model_path, "config.json"))
+
+if "ja-jp" not in config.languages:
+    #fix to have JP before next TTS update
+    config.languages.append("ja-jp")
+
+
 model = Xtts.init_from_config(config)
 model.load_checkpoint(
     config,
@@ -178,7 +184,7 @@ def wave_header_chunk(frame_input=b"", channels=1, sample_width=2, sample_rate=2
     wav_buf.seek(0)
     return wav_buf.read()
 
-xtts_supported_languages=["en","es","fr","de","it","pt","pl","tr","ru","nl","cs","ar","zh-cn"]
+xtts_supported_languages=["en","es","fr","de","it","pt","pl","tr","ru","nl","cs","ar","zh-cn","ja-jp"]
 def detect_language(prompt):
     # Fast language autodetection
     if len(prompt)>15:
@@ -186,6 +192,10 @@ def detect_language(prompt):
         if language_predicted == "zh": 
             #we use zh-cn on xtts
             language_predicted = "zh-cn"
+        if language_predicted == "ja": 
+            #we use zh-cn 
+            language_predicted = "ja-jp"
+            
         if language_predicted not in xtts_supported_languages:
             print(f"Detected a language not supported by xtts :{language_predicted}, switching to english for now")
             gr.Warning(f"Language detected '{language_predicted}' can not be spoken properly 'yet' ")