tweaks and fixes

vall_e/inference.py

@@ -33,6 +33,7 @@ class TTS():
 			pass
 
 		cfg.mode = "inferencing"
+		cfg.trainer.load_module_only = True
 		
 		self.symmap = None
 		if ar_ckpt and nar_ckpt:

vall_e/models/ar.py

@@ -150,6 +150,7 @@ def example_usage():
 	from ..emb.qnt import decode_to_file
 	from ..engines import Engine
 	from tqdm import tqdm
+	from ..utils import wrapper as ml
 
 	device = "cuda"
 	x8 = partial(repeat, pattern="t -> t l", l=cfg.models.prom_levels) 
@@ -184,15 +185,19 @@ def example_usage():
 		'n_layers': 24,
 	}
 
+	"""	
 	try:
 		kwargs['config'] = cfg.models.ar
 	except Exception as e:
 		pass
+	"""	
 
 	model = AR(**kwargs).to(device)
-	engine = Engine(model=model, optimizer=torch.optim.SGD(model.parameters(), lr=0.1))
+	optimizer = ml.Prodigy(model.parameters(), lr=1.0)
+	engine = Engine(model=model, optimizer=optimizer)
+	steps = 500
 	
-	def sample( name, steps=400 ):
+	def sample( name, steps=600 ):
 		engine.eval()
 		out = engine(text_list, proms_list, max_steps=steps)
 		for i, o in enumerate(out):
@@ -200,7 +205,7 @@ def example_usage():
 
 	def train():
 		engine.train()
-		t = trange(60)
+		t = trange(steps)
 		for i in t:
 			stats = {"step": i}
 			stats |= engine.traverse(text_list=text_list, proms_list=proms_list, resps_list=resps_list)

vall_e/models/ar_nar.py

@@ -1,5 +1,4 @@
 from .base import Base, list_to_tensor, Categorical
-from ..utils import wrapper as ml
 from ..config import cfg
 
 import torch
@@ -173,6 +172,7 @@ def example_usage():
 	from ..emb.qnt import decode_to_file, unload_model
 	from ..engines import Engine
 	from tqdm import tqdm
+	from ..utils import wrapper as ml
 
 	device = "cuda"
 	x8 = partial(repeat, pattern="t -> t l", l=cfg.models.prom_levels) 
@@ -215,8 +215,8 @@ def example_usage():
 	"""
 
 	model = AR_NAR(**kwargs).to(device)
+	steps = 500
 	optimizer = ml.Prodigy(model.parameters(), lr=1.0)
-	#optimizer = ml.AdamW(model.parameters(), lr=0.0001)
 	engine = Engine(model=model, optimizer=optimizer)
 
 	print(f"AR+NAR parameter count: {sum(p.numel() for p in model.parameters() if p.requires_grad)}")
@@ -238,7 +238,7 @@ def example_usage():
 
 	def train():
 		engine.train()
-		t = trange(500)
+		t = trange(steps)
 		for i in t:
 			stats = {"step": i}
 			stats |= engine.traverse(text_list=text_list, proms_list=proms_list, resps_list=resps_list)

vall_e/models/base.py

@@ -68,7 +68,9 @@ class MultiEmbedding(nn.Embedding):
 		self.n_tokens = n_tokens
 		self.weight = nn.Parameter(torch.randn(max_n_levels, n_tokens, token_dim))
 
-	def forward(self, x_list: list[Tensor]) -> list[Tensor]:
+	# to-do: select quant level from given quant_levels tensor if given (i.e. through the resp_emb)
+	# I imagine this is an oversight in the NAR.
+	def forward(self, x_list: list[Tensor], quant_levels: Tensor | None = None) -> list[Tensor]:
 		if len(x_list) == 0:
 			return []
 
@@ -151,9 +153,13 @@ class Base(nn.Module):
 		return False
 
 	@property
-	def n_embeddings(self):
+	def n_embeddings(self) -> int:
 		return self.n_resp_levels if self.monolithic else 1
 
+	@property
+	def use_old_embeddings(self) -> bool:
+		return True
+
 	@property
 	def stop_token(self):
 		if not self.causal:
@@ -199,14 +205,14 @@ class Base(nn.Module):
 
 		# use dedicated embeddings for each RVQ-bin level in the input acoustic prompt if requested
 		# n_embeddings == prom_levels because using the MultiEmbedding is more than fine for the input acoustic prompt
-		if self.n_embeddings == self.n_prom_levels:
+		if self.n_embeddings == self.n_prom_levels or not self.use_old_embeddings:
 			self.proms_emb = PromEmbedding(self.n_prom_levels, n_prom_tokens, d_model) 
 		else:
 			self.proms_emb = MultiEmbedding(self.n_prom_levels, n_prom_tokens, d_model)
 		
 		# use dedicated embeddings for each RVQ-bin level in the output response / target if requested
 		# n_embeddings > 1 because the using the MultiEmbedding "works" fine enough for split AR/NARs.
-		if self.n_embeddings > 1:
+		if self.n_embeddings > 1 or not self.use_old_embeddings:
 			self.resps_emb = RespEmbedding(self.n_embeddings, n_resp_tokens, d_model)
 		else:
 			self.resps_emb = MultiEmbedding(self.n_resp_levels, n_resp_tokens, d_model)
@@ -409,6 +415,7 @@ def example_usage():
 	from ..emb.qnt import decode_to_file
 	from ..engines import Engine, Engines
 	from tqdm import tqdm, trange
+	from ..utils import wrapper as ml
 
 	from .ar import AR
 	from .nar import NAR
@@ -432,7 +439,7 @@ def example_usage():
 	for name, model in models.items():
 		print(f"{name} parameter count: {sum(p.numel() for p in model.parameters() if p.requires_grad)}")
 
-	engines = Engines({ name: Engine(model=model, optimizer=torch.optim.AdamW(model.parameters(), lr=1e-4)) for name, model in models.items() })
+	engines = Engines({ name: Engine(model=model, optimizer=ml.AdamW(model.parameters(), lr=1e-4)) for name, model in models.items() })
 
 	train = True
 
@@ -449,7 +456,7 @@ def example_usage():
 		qnt.to(device),
 	]
 	
-	def sample( name, steps=400 ):
+	def sample( name, steps=600 ):
 		AR = None
 		NAR = None
 
@@ -471,7 +478,7 @@ def example_usage():
 		sample("init", 15)
 
 		engines.train()
-		t = trange(60)
+		t = trange(500)
 		for i in t:
 			stats = {"step": i}
 			"""

vall_e/models/nar.py

@@ -130,6 +130,7 @@ def example_usage():
 	from ..emb.qnt import decode_to_file
 	from ..engines import Engine
 	from tqdm import tqdm
+	from ..utils import wrapper as ml
 
 	device = "cuda"
 	x8 = partial(repeat, pattern="t -> t l", l=cfg.models.prom_levels)
@@ -162,7 +163,9 @@ def example_usage():
 		'n_layers': 12,
 	}
 	model = NAR(**kwargs).to(device)
-	engine = Engine(model=model, optimizer=torch.optim.AdamW(model.parameters(), lr=1e-4))
+	steps = 500
+	optimizer = ml.Prodigy(model.parameters(), lr=1.0)
+	engine = Engine(model=model, optimizer=optimizer)
 
 	def sample( name ):
 		engine.eval()
@@ -171,7 +174,7 @@ def example_usage():
 
 	def train():
 		engine.train()
-		t = trange(60)
+		t = trange(steps)
 		for i in t:
 			stats = {"step": i}
 			stats |= engine.traverse(text_list=text_list, proms_list=proms_list, resps_list=resps_list)

vall_e/utils/trainer.py

@@ -43,6 +43,7 @@ def load_engines(invert=False):
 	engines = dict()
 
 	for name, model in models.items():
+		if cfg.mode != "inferencing":
 			# load only the models for training initially
 			# loads disabled models at evaluation time (to load updated weights if training separately)
 			# I'm sure there's a more elegant solution to this