Added unconditional generation

app.py

@@ -183,7 +183,7 @@ def infer_from_audio(text, language, accent, audio_prompt, record_audio_prompt,
     if audio_prompt is None and record_audio_prompt is None:
         audio_prompts = torch.zeros([1, 0, NUM_QUANTIZERS]).type(torch.int32).to(device)
         text_prompts = torch.zeros([1, 0]).type(torch.int32)
-        lang_pr = language if language != 'mix' else 'en'
+        lang_pr = 'en'
         enroll_x_lens = 0
     else:
         audio_prompt = audio_prompt if audio_prompt is not None else record_audio_prompt