Update app.py

app.py

@@ -37,7 +37,7 @@ def load_model():
 
         snapshot_download(
             repo_id=model_name,
-            use_auth_token=os.environ.get("HF_TOKEN"),
+            use_auth_token=os.environ.get("HUGGINGFACE_TOKEN"),
             allow_patterns=["config.json", "*.safetensors", "model.safetensors.index.json", "vocab.json", "merges.txt", "tokenizer.json"],
             ignore_patterns=["optimizer.pt", "pytorch_model.bin", "training_args.bin", "scheduler.pt"]
         )
@@ -151,9 +151,9 @@ def redistribute_codes(code_list, snac_model):
 
 @spaces.GPU()
 def generate_speech(text, voice, temperature, top_p, repetition_penalty, max_new_tokens):
-    global tokenizer
-    if tokenizer is None:
-        print("Tokenizer is not initialized. Please ensure the model is properly loaded.")
+    global tokenizer, model
+    if tokenizer is None or model is None:
+        print("Model or tokenizer is not initialized. Please ensure the model is properly loaded.")
         return None
 
     if not text.strip():