Update app.py

app.py

@@ -197,7 +197,7 @@ def tts_streaming(text: str, voice: str = "af_heart", speed: float = 1.0, format
             if i == 0:
                 tokens_to_send = [0] + chunk_tokens
             else:
-                tokens_to_send =  [0] + [prev_last_token] + [16] + chunk_tokens
+                tokens_to_send =  [0] + prev_last_token + [16] + chunk_tokens
                 # token_to_send = [0] + chunk_tokens
 
             # Save the last token of this chunk for the next iteration.
@@ -228,7 +228,7 @@ def tts_streaming(text: str, voice: str = "af_heart", speed: float = 1.0, format
             except Exception as e:
                 print(f"Error processing chunk {i}: {e}")
                 # In case of error, generate a short silent chunk.
-                audio_output = np.zeros((sample_rate,), dtype=np.float32)
+                audio_output = np.zeros((24000,), dtype=np.float32)
 
             # Convert the model output (assumed to be float32 in [-1, 1]) to int16 PCM.
             audio_int16 = (audio_output * 32767).astype(np.int16).flatten()