fix: redundant [spk_emb]s in refine_text (fix #459) (#464)

ChatTTS/core.py

@@ -329,6 +329,7 @@ class Chat:
             self.pretrain_models["tokenizer"] = tokenizer
             self.tokenizer_len = len(tokenizer)
             self.tokenizer_spk_emb_ids: torch.Tensor = tokenizer.convert_tokens_to_ids("[spk_emb]")
+            self.tokenizer_break_0_ids: torch.Tensor = tokenizer.convert_tokens_to_ids("[break_0]")
             self.tokenizer_eos_token: torch.Tensor = torch.tensor(
                 tokenizer.convert_tokens_to_ids("[Ebreak]"), device=gpt.device_gpt
             ).unsqueeze_(0)
@@ -377,12 +378,7 @@ class Chat:
                 )
                 text_tokens = refined.ids
                 text_tokens = [
-                    i[
-                        i
-                        < self.pretrain_models["tokenizer"].convert_tokens_to_ids(
-                            "[break_0]"
-                        )
-                    ]
+                    i[i.less(self.tokenizer_break_0_ids)]
                     for i in text_tokens
                 ]
                 text = self.pretrain_models["tokenizer"].batch_decode(text_tokens)
@@ -458,7 +454,7 @@ class Chat:
                     filters=[{"id": lzma.FILTER_LZMA2, "preset": 9 | lzma.PRESET_EXTREME}],
                 ), dtype=np.float16).copy(),
             ).unsqueeze(0).expand(text_len, -1), p=2.0, dim=1, eps=1e-12
-        ).to(self.gpt.device_gpt).expand(emb.shape)
+        ).to(self.gpt.device_gpt).unsqueeze_(1).expand(emb.shape)
         cond = input_ids.narrow(-1, 0, 1).eq(self.tokenizer_spk_emb_ids).expand(emb.shape)
         torch.where(cond, n, emb, out=emb)
         del cond, n
@@ -483,6 +479,12 @@ class Chat:
             temperature = [params.temperature] * gpt.num_vq
         else:
             temperature = params.temperature
+        
+        for i, t in enumerate(text):
+            text[i] = t.replace('[Stts]', '').replace('[spk_emb]', '').replace('[empty_spk]', '').strip()
+            """
+            see https://github.com/2noise/ChatTTS/issues/459
+            """
 
         if params.prompt:
             text = [params.prompt + i for i in text]
@@ -557,7 +559,7 @@ class Chat:
         emb = gpt(input_ids, text_mask)
         del text_mask
 
-        result = gpt.generate(
+        result = next(gpt.generate(
             emb,
             input_ids,
             temperature=torch.tensor([params.temperature], device=device),
@@ -570,10 +572,10 @@ class Chat:
             infer_text=True,
             stream=False,
             context=self.context,
-        )
+        ))
 
         del emb, input_ids
         del_all(logits_warpers)
         del_all(logits_processors)
 
-        return next(result)
+        return result