diff --git a/vall_e/config.py b/vall_e/config.py
index ef6d515..8ae3309 100755
--- a/vall_e/config.py
+++ b/vall_e/config.py
@@ -340,7 +340,11 @@ class DeepSpeed:
 	use_compression_training: bool = False
 	compression_bits: int = 8
 	inferencing: bool = False
+	
 	amp: bool = False
+	fp16: bool = False
+
+	config: dict = field(default_factory=lambda: {}) # to pass through deepspeed config
 
 	@cached_property
 	def ds_cfg(self):
@@ -368,7 +372,7 @@ class DeepSpeed:
 			autotune_params['exps_dir'] = str( cfg.relpath / "autotune" / "exps_" )
 
 		# DeepSpeed fp16 is incompatible with its AMP
-		if cfg.trainer.weight_dtype.lower() == "float16":
+		if cfg.trainer.weight_dtype.lower() == "float16" and self.fp16:
 			self.amp = False
 
 		# disable local AMP
@@ -388,9 +392,9 @@ class DeepSpeed:
 			} if not cfg.hyperparameters.torch_scheduler else None,
 			"gradient_clipping": cfg.hyperparameters.gradient_clipping,
 			"fp16": {
-				"enabled": cfg.trainer.weight_dtype.lower() == "float16",
+				"enabled": cfg.trainer.weight_dtype.lower() == "float16" and self.fp16,
 				"auto_cast": True, # ???
-			} if not self.amp else None,
+			},
 			"bf16": {
 				"enabled": cfg.trainer.weight_dtype.lower() == "bfloat16",
 			},
@@ -482,6 +486,8 @@ class DeepSpeed:
 
 		if os.path.exists("./data/ds_config.json"):
 			ds_cfg.update(json.load(open("./data/ds_config.json", "r", encoding="utf-8")))
+		else:
+			ds_cfg.update(self.config)
 
 		return ds_cfg