allow loading a different model within the web ui (apparently I did not have the web UI in the documentation)

README.md

@@ -20,7 +20,6 @@ Simply run `pip install git+https://git.ecker.tech/mrq/vall-e` or `pip install g
 
 I've tested this repo under Python versions `3.10.9`, `3.11.3`, and `3.12.3`.
 
-
 ## Pre-Trained Model
 
 > [!NOTE]
@@ -196,11 +195,34 @@ And some experimental sampling flags you can use too (your mileage will ***defin
   + **!**NOTE**!**: This is incompatible with beam search sampling (for the meantime at least).
 * `--mirostat-eta`: (AR only) the "learning rate" during mirostat sampling applied to the maximum surprise.
 
+### Web UI
+
+A Gradio-based web UI is accessible by running `python3 -m vall_e.webui`. You can, optionally, pass:
+
+* `--yaml=./path/to/your/config.yaml`: will load the targeted YAML
+* `--listen 0.0.0.0:7860`: will set the web UI to listen to all IPs at port 7860. Replace the IP and Port to your preference.
+
+#### Inference
+
+Synthesizing speech is simple:
+
+* `Input Prompt`: The guiding text prompt. Each new line will be it's own generated audio to be stitched together at the end.
+* `Audio Input`: The reference audio for the synthesis. Under Gradio, you can trim your clip accordingly, but leaving it as-is works fine.
+* `Output`: The resultant audio.
+* `Inference`: Button to start generating the audio.
+
+All the additional knobs have a description that can be correlated to the above CLI flags.
+
+#### Settings
+
+So far, this only allows you to load a different model without needing to restart. The previous model should seamlessly unload, and the new one will load in place.
+
 ## To-Do
 
 * [x] train and release a serviceable model for finetuning against.
 * [ ] train and release a ***good*** zero-shot model.
   - this should, hopefully, just simply requires another epoch or two for `ar+nar-llama-8`, as the foundation seems rather robust now.
+* [ ] well-integrated training through the Web UI (without the kludge from ai-voice-cloning)
 * [x] ~~explore alternative setups, like a NAR-only model~~
   - the current experiment of an AR length-predictor + NAR for the rest seems to fall apart...
 * [x] ~~explore better sampling techniques~~

vall_e/config.py

@@ -210,11 +210,10 @@ class ModelExperimentalSettings:
 # I really need to clean this up
 @dataclass()
 class Model:
-	name: str = "" # vanity name for the model
+	name: str = "ar+nar" # vanity name for the model
 	version: int = 5 # 1 = old with MultiEmbedding, 2 = new with AudioEmbedding, 3+ = additional embeddings
 	size: str | dict = "full" # preset string or explicitly defined dimensionality
-	resp_levels: int = 1 # RVQ-bin levels this model targets for outputs
+	resp_levels: int = 8 # RVQ-bin levels this model supports
-	prom_levels: int = 8 # RVQ-bin levels this model accepts as an input prompt
 	tasks: int = 8 # ["tts", "ns", "sr", "tse", "cse", "nse"] and leaves two more for anything else I want (like "svc") (unused)
 	langs: int = 1 # defined languages (semi-unused)
 	tones: int = 1 # defined tones (unsued)
@@ -238,7 +237,10 @@ class Model:
 
 	@property
 	def max_levels(self):
-		return max(self.prom_levels, self.resp_levels)
+		# return RVQ level range
+		if self.experimental is not None and self.experimental.rvq_level_range:
+			return self.experimental.rvq_level_range[-1]
+		return self.resp_levels
 
 	@property
 	# required for fp8 as the lengths needs to be divisible by 8
@@ -626,7 +628,7 @@ class Inference:
 	use_encodec: bool = True
 	use_dac: bool = True
 
-	@cached_property
+	@property
 	def dtype(self):
 		if self.weight_dtype == "float16":
 			return torch.float16
@@ -651,7 +653,7 @@ class Optimizations:
 	optimizers: bool = True # inject/replace optimizers (BnB, DAdaptation)
 	
 	bitsandbytes: bool = False # use bitsandbytes
-	dadaptation: bool = True # use dadaptation optimizer
+	dadaptation: bool = False # use dadaptation optimizer
 	bitnet: bool = False # use bitnet
 	fp8: bool = False # use fp8
 
@@ -671,7 +673,8 @@ class Config(BaseConfig):
 	bitsandbytes: dict | list | None = None # deprecated
 	optimizations: Optimizations = field(default_factory=lambda: Optimizations)
 	
-	tokenizer: str = "./tokenizer.json"
+	tokenizer: str | None = None
+	tokenizer_path: str = "./tokenizer.json"
 
 	sample_rate: int = 24_000
 	variable_sample_rate: bool = False # NOT recommended, as running directly 24Khz audio in the 44Khz DAC model will have detrimental quality loss
@@ -760,14 +763,21 @@ class Config(BaseConfig):
 		self.dataset.validation = [ Path(dir) for dir in self.dataset.validation ]
 		self.dataset.noise = [ Path(dir) for dir in self.dataset.noise ]
 
+		# do cleanup
 		for model in self.models:
 			if not isinstance( model, dict ):
 				continue
 
+			if "prom_levels" in model:
+				del model["prom_levels"]
+			
+			if "interleave" in model:
+				del model["interleave"]
+
 			if "audio_embedding_sums" not in model:
 				continue
 
-			if not model["experimental"]:
+			if "experimental" not in model or not model["experimental"]:
 				model["experimental"] = {}
 
 			model["experimental"]["audio_embedding_sums"] = model.pop("audio_embedding_sums")
@@ -837,9 +847,9 @@ class Config(BaseConfig):
 			try:
 				from transformers import PreTrainedTokenizerFast
 
-				tokenizer_path = cfg.rel_path / cfg.tokenizer
+				tokenizer_path = cfg.rel_path / cfg.tokenizer_path
 				if not tokenizer_path.exists():
-					tokenizer_path = Path("./data/") / cfg.tokenizer
+					tokenizer_path = Path("./data/") / cfg.tokenizer_path
 				cfg.tokenizer = PreTrainedTokenizerFast(tokenizer_file=str(tokenizer_path))
 			except Exception as e:
 				cfg.tokenizer = NaiveTokenizer()

vall_e/data.py

@@ -961,8 +961,8 @@ class Dataset(_Dataset):
 		"""
 
 		# trim to fit to requested prom/resps levels
-		proms = proms[:, :cfg.model.prom_levels]
+		proms = proms[:, :cfg.model.resp_levels]
-		resps = resps[:, :cfg.model.prom_levels]
+		resps = resps[:, :cfg.model.resp_levels]
 
 
 		return dict(
@@ -1466,7 +1466,7 @@ if __name__ == "__main__":
 			if task not in cfg.dataset.tasks_list:
 				continue
 
-			print(text, task, cfg.model.prom_levels)
+			print(text, task, cfg.model.resp_levels)
 			print( proms.shape, resps.shape )
 
 			tokens = 0

vall_e/engines/__init__.py

@@ -37,7 +37,7 @@ def load_engines(training=True):
 		optimizer = None
 		lr_scheduler = None
 
-		inferencing = cfg.mode == "inferencing" or not model.config.training
+		inferencing = cfg.mode == "inferencing" or not model.config.training or not training
 		backend = cfg.inference.backend if inferencing else cfg.trainer.backend
 		dtype = cfg.inference.dtype if inferencing else cfg.trainer.dtype
 		amp = cfg.inference.amp if inferencing else cfg.trainer.amp

vall_e/inference.py

@@ -8,10 +8,10 @@ from einops import rearrange
 from pathlib import Path
 
 from .emb import g2p, qnt
-from .emb.qnt import trim, trim_random
+from .emb.qnt import trim, trim_random, unload_model
 from .utils import to_device, set_seed, wrapper as ml
 
-from .config import cfg
+from .config import cfg, Config
 from .models import get_models
 from .engines import load_engines, deepspeed_available
 from .data import get_phone_symmap, get_lang_symmap, _load_quants, _cleanup_phones, tokenize
@@ -23,10 +23,14 @@ class TTS():
 	def __init__( self, config=None, device=None, amp=None, dtype=None ):
 		self.loading = True 
 
-		self.input_sample_rate = 24000
+		self.load_config( config=config, device=device, amp=amp, dtype=dtype )	
-		self.output_sample_rate = 24000
+		self.load_model()
 
+		self.loading = False 
+
+	def load_config( self, config=None, device=None, amp=None, dtype=None ):
 		if config:
+			print("Loading YAML:", config)
 			cfg.load_yaml( config )
 
 		try:
@@ -53,7 +57,10 @@ class TTS():
 		self.dtype = cfg.inference.dtype
 		self.amp = amp
 		
-		self.symmap = None
+
+	def load_model( self ):
+		load_engines.cache_clear()
+		unload_model()
 		
 		self.engines = load_engines(training=False)
 		for name, engine in self.engines.items():
@@ -61,11 +68,8 @@ class TTS():
 				engine.to(self.device, dtype=self.dtype if not self.amp else torch.float32)
 
 		self.engines.eval()
-
+		self.symmap = get_phone_symmap()
-		if self.symmap is None:
+		print("Loaded model")
-			self.symmap = get_phone_symmap()
-
-		self.loading = False 
 
 	def encode_text( self, text, language="en" ):
 		# already a tensor, return it

vall_e/models/ar_nar.py

@@ -33,12 +33,6 @@ class AR_NAR(Base):
 	def causal(self):
 		return "ar" in self.capabilities
 
-	@property
-	def n_prom_levels(self) -> int:
-		if hasattr(self, "config") and self.config:
-			return self.config.prom_levels
-		return cfg.model.prom_levels
-
 	@property
 	def n_resp_levels(self) -> int:
 		if hasattr(self, "config") and self.config:
@@ -197,7 +191,7 @@ class AR_NAR(Base):
 			
 			# is NAR
 			if max_levels == 0:
-				max_levels = self.n_resp_levels - 1
+				max_levels = self.n_max_levels - 1
 
 			# expand if given a raw 1D tensor
 			for i, resp in enumerate(resps_list):
@@ -373,7 +367,6 @@ def example_usage():
 	# mamba seems to ONLY be used as an AR (any NAR attempts lobotomizes it)
 	"""
 	if "mamba" in cfg.model.arch_type:
-		cfg.model.prom_levels = 1
 		cfg.model.resp_levels = 1
 	"""
 	# cfg.model.loss_factors = {}
@@ -383,7 +376,7 @@ def example_usage():
 
 	def _load_quants(path) -> Tensor:
 		qnt = np.load(path, allow_pickle=True)[()]
-		return torch.from_numpy(qnt["codes"].astype(np.int16))[0, :cfg.model.prom_levels, :].t().to(torch.int16)
+		return torch.from_numpy(qnt["codes"].astype(np.int16))[0, :cfg.model.resp_levels, :].t().to(torch.int16)
 
 	qnt = _load_quants(f"./data/qnt.{'dac' if cfg.audio_backend == 'dac' else 'enc'}")
 

vall_e/models/base.py

@@ -123,7 +123,7 @@ class AudioEmbedding_Old(nn.Module):
 	):
 		super().__init__()
 		# array of embeddings
-		#   proms are [0, prom_levels]
+		#   proms are [0, resp_levels]
 		#   resp are split to where [0] is for the AR, and [1:] are reserved for NAR
 		self.embeddings = nn.ModuleList([nn.Embedding(n_tokens, token_dim) for n_tokens in l_tokens])
 		# weight influencer for the influence for each level (desu this should be really useless because the weights in the embedding themselves should factor this)
@@ -154,7 +154,7 @@ class AudioEmbedding(nn.Module):
 	):
 		super().__init__()
 		# array of embeddings
-		#   proms are [0, prom_levels]
+		#   proms are [0, resp_levels]
 		#   resp are split to where [0] is for the AR, and [1:] are reserved for NAR
 		#     + resps cannot share the AR and NAR embeddings, since they do encode whether to predict the same level but in the next token or predict in place but the next level
 		self.embeddings = nn.ModuleList([nn.Embedding(n_tokens, token_dim) for n_tokens in l_tokens])
@@ -282,10 +282,6 @@ class Base(nn.Module):
 	def causal(self) -> bool:
 		raise NotImplementedError
 
-	@property
-	def n_prom_levels(self) -> int:
-		raise NotImplementedError
-
 	@property
 	def n_resp_levels(self) -> int:
 		raise NotImplementedError
@@ -368,7 +364,6 @@ class Base(nn.Module):
 		
 		self.l_padding = l_padding
 
-		n_prom_tokens = n_audio_tokens
 		arch_type = self.config.arch_type if self.config is not None else "llama"
 
 		self.arch_type = arch_type
@@ -397,14 +392,14 @@ class Base(nn.Module):
 		self.len_emb = None
 
 		if self.version == 1: # legacy
-			n_prom_tokens += (self.n_tasks - 1) # old models have the task tokens in the prom
+			n_audio_tokens += (self.n_tasks - 1) # old models have the task tokens in the prom
-			self.proms_emb = MultiEmbedding(self.n_prom_levels, n_prom_tokens, d_model)
+			self.proms_emb = MultiEmbedding(self.n_resp_levels, n_audio_tokens, d_model)
 			self.resps_emb = MultiEmbedding(self.n_resp_levels, n_resp_tokens, d_model, monolithic=self.monolithic)
 		elif self.version < 5:
 			# [1024] * 8
 			self.proms_emb = AudioEmbedding_Old(
-				[n_prom_tokens] * self.n_prom_levels, d_model,
+				[n_audio_tokens] * self.n_resp_levels, d_model,
-				levels=self.n_prom_levels if self.version > 3 else None,
+				levels=self.n_resp_levels if self.version > 3 else None,
 			)
 			# [1024 + STOP] + [1024] * 8
 			self.resps_emb = AudioEmbedding_Old(
@@ -413,7 +408,7 @@ class Base(nn.Module):
 			)
 		else:
 			self.proms_emb = AudioEmbedding(
-				[n_prom_tokens] * self.n_prom_levels, d_model,
+				[n_audio_tokens] * self.n_resp_levels, d_model,
 				sums=audio_embedding_sums,
 				external_mode=audio_embedding_mode,
 			)

vall_e/models/nar.py

@@ -31,12 +31,6 @@ class NAR(Base):
 	def causal(self):
 		return "len" in self.capabilities
 
-	@property
-	def n_prom_levels(self) -> int:
-		if hasattr(self, "config") and self.config:
-			return self.config.prom_levels
-		return cfg.model.prom_levels
-
 	@property
 	def n_resp_levels(self) -> int:
 		if hasattr(self, "config") and self.config:
@@ -309,7 +303,6 @@ def example_usage():
 	# mamba seems to ONLY be used as an AR (any NAR attempts lobotomizes it)
 	"""
 	if "mamba" in cfg.model.arch_type:
-		cfg.model.prom_levels = 1
 		cfg.model.resp_levels = 1
 	"""
 	# cfg.model.loss_factors = {}
@@ -319,7 +312,7 @@ def example_usage():
 
 	def _load_quants(path) -> Tensor:
 		qnt = np.load(path, allow_pickle=True)[()]
-		return torch.from_numpy(qnt["codes"].astype(np.int16))[0, :cfg.model.prom_levels, :].t().to(torch.int16)
+		return torch.from_numpy(qnt["codes"].astype(np.int16))[0, :cfg.model.resp_levels, :].t().to(torch.int16)
 
 	qnt = _load_quants(f"./data/qnt.{'dac' if cfg.audio_backend == 'dac' else 'enc'}")
 

vall_e/webui.py

@@ -19,6 +19,7 @@ tts = None
 layout = {}
 layout["inference"] = {}
 layout["training"] = {}
+layout["settings"] = {}
 
 for k in layout.keys():
 	layout[k]["inputs"] = { "progress": None }
@@ -37,14 +38,42 @@ def gradio_wrapper(inputs):
 	return decorated
 
 class timer:
-    def __enter__(self):
+	def __init__(self, msg="Elapsed time:"):
-        self.start = perf_counter()
+		self.msg = msg
-        return self
 
-    def __exit__(self, type, value, traceback):
+	def __enter__(self):
-        print(f'[{datetime.now().isoformat()}] Elapsed time: {(perf_counter() - self.start):.3f}s')
+		self.start = perf_counter()
+		return self
 
-def init_tts(restart=False):
+	def __exit__(self, type, value, traceback):
+		msg = f'{self.msg} {(perf_counter() - self.start):.3f}s'
+
+		gr.Info(msg)
+		print(f'[{datetime.now().isoformat()}] {msg}')
+
+# returns a list of models, assuming the models are placed under ./training/ or ./models/
+def get_model_paths( paths=[Path("./training/"), Path("./models/")] ):
+	yamls = []
+
+	for path in paths:
+		if not path.exists():
+			continue
+
+		for yaml in path.glob("**/*.yaml"):
+			if "/logs/" in str(yaml):
+				continue
+
+			yamls.append( yaml )
+
+	return yamls
+
+#
+def load_model( yaml ):
+	gr.Info(f"Loading: {yaml}")
+	init_tts( yaml=Path(yaml), restart=True )
+	gr.Info(f"Loaded model")
+
+def init_tts(yaml=None, restart=False):
 	global tts
 
 	if tts is not None:
@@ -53,13 +82,13 @@ def init_tts(restart=False):
 		del tts
 	
 	parser = argparse.ArgumentParser(allow_abbrev=False)
-	parser.add_argument("--yaml", type=Path, default=os.environ.get('VALLE_YAML', None)) # os environ so it can be specified in a HuggingFace Space too
+	parser.add_argument("--yaml", type=Path, default=os.environ.get('VALLE_YAML', yaml)) # os environ so it can be specified in a HuggingFace Space too
 	parser.add_argument("--device", type=str, default="cuda")
 	parser.add_argument("--amp", action="store_true")
 	parser.add_argument("--dtype", type=str, default="auto")
 	args, unknown = parser.parse_known_args()
 
-	tts = TTS( config=args.yaml, device=args.device, dtype=args.dtype if args.dtype != "auto" else None, amp=args.amp )
+	tts = TTS( config=args.yaml if yaml is None else yaml, device=args.device, dtype=args.dtype if args.dtype != "auto" else None, amp=args.amp )
 	return tts
 
 @gradio_wrapper(inputs=layout["inference"]["inputs"].keys())
@@ -78,7 +107,7 @@ def do_inference( progress=gr.Progress(track_tqdm=True), *args, **kwargs ):
 	parser.add_argument("--language", type=str, default="en")
 	parser.add_argument("--input-prompt-length", type=float, default=kwargs["input-prompt-length"])
 	parser.add_argument("--max-ar-steps", type=int, default=int(kwargs["max-seconds"]*cfg.dataset.frames_per_second))
-	parser.add_argument("--max-nar-levels", type=int, default=kwargs["max-nar-levels"])
+	parser.add_argument("--max-nar-levels", type=int, default=0), # kwargs["max-nar-levels"])
 	parser.add_argument("--ar-temp", type=float, default=kwargs["ar-temp"])
 	parser.add_argument("--nar-temp", type=float, default=kwargs["nar-temp"])
 	parser.add_argument("--min-ar-temp", type=float, default=kwargs["min-ar-temp"])
@@ -99,7 +128,9 @@ def do_inference( progress=gr.Progress(track_tqdm=True), *args, **kwargs ):
 		raise ValueError("No reference audio provided.")
 
 	tts = init_tts()
-	with timer() as t:
+	
+	gr.Info("Inferencing...")
+	with timer("Inferenced in") as t:
 		wav, sr = tts.inference(
 			text=args.text,
 			language=args.language,
@@ -169,6 +200,7 @@ def get_random_prompt():
 
 # setup args
 parser = argparse.ArgumentParser(allow_abbrev=False)
+parser.add_argument("--yaml", type=Path, default=os.environ.get('VALLE_YAML', None)) # os environ so it can be specified in a HuggingFace Space too
 parser.add_argument("--listen", default=None, help="Path for Gradio to listen on")
 parser.add_argument("--share", action="store_true")
 parser.add_argument("--render_markdown", action="store_true", default="VALLE_YAML" in os.environ)
@@ -208,7 +240,7 @@ with ui:
 			with gr.Column(scale=7):
 				with gr.Row():
 					layout["inference"]["inputs"]["max-seconds"] = gr.Slider(value=12, minimum=1, maximum=32, step=0.1, label="Maximum Seconds", info="Limits how many steps to perform in the AR pass.")
-					layout["inference"]["inputs"]["max-nar-levels"] = gr.Slider(value=7, minimum=0, maximum=7, step=1, label="Max NAR Levels", info="Limits how many steps to perform in the NAR pass.")
+					#layout["inference"]["inputs"]["max-nar-levels"] = gr.Slider(value=7, minimum=0, maximum=7, step=1, label="Max NAR Levels", info="Limits how many steps to perform in the NAR pass.")
 					layout["inference"]["inputs"]["input-prompt-length"] = gr.Slider(value=3.0, minimum=0.0, maximum=12.0, step=0.05, label="Input Prompt Trim Length", info="Trims the input prompt down to X seconds. Set 0 to disable.")
 				with gr.Row():
 					layout["inference"]["inputs"]["ar-temp"] = gr.Slider(value=0.95, minimum=0.0, maximum=1.5, step=0.05, label="Temperature (AR)", info="Modifies the randomness from the samples in the AR. (0 to greedy sample)")
@@ -249,6 +281,19 @@ with ui:
 		)
 	"""
 
+	with gr.Tab("Settings"):
+		with gr.Row():
+			with gr.Column(scale=7):
+				layout["settings"]["inputs"]["models"] = gr.Dropdown(choices=get_model_paths(), value=args.yaml, label="Model")
+			with gr.Column(scale=1):
+				layout["settings"]["buttons"]["load"] = gr.Button(value="Load Model")
+
+			layout["settings"]["buttons"]["load"].click(
+				fn=load_model,
+				inputs=[ x for x in layout["settings"]["inputs"].values() if x is not None],
+				outputs=[ x for x in layout["settings"]["outputs"].values() if x is not None],
+			)
+
 	if os.path.exists("README.md") and args.render_markdown:
 		md = open("README.md", "r", encoding="utf-8").read()
 		# remove HF's metadata