def test_fastspeech2_train_some_layers(var_train_expr, config_path):
config = FastSpeech2Config(n_speakers=5)
model = TFFastSpeech2(config)
model._build()
optimizer = tf.keras.optimizers.Adam(lr=0.001)
with open(config_path) as f:
config = yaml.load(f, Loader=yaml.Loader)
config.update({"outdir": "./"})
config.update({"var_train_expr": var_train_expr})
STRATEGY = return_strategy()
trainer = FastSpeech2Trainer(
config=config,
strategy=STRATEGY,
steps=0,
epochs=0,
is_mixed_precision=False,
)
trainer.compile(model, optimizer)
len_trainable_vars = len(trainer._trainable_variables)
all_trainable_vars = len(model.trainable_variables)
if var_train_expr is None:
tf.debugging.assert_equal(len_trainable_vars, all_trainable_vars)
else:
tf.debugging.assert_less(len_trainable_vars, all_trainable_vars)
def test_fastspeech_trainable(num_hidden_layers, n_speakers):
config = FastSpeech2Config(
encoder_num_hidden_layers=num_hidden_layers,
decoder_num_hidden_layers=num_hidden_layers + 1,
n_speakers=n_speakers,
)
fastspeech2 = TFFastSpeech2(config, name="fastspeech")
optimizer = tf.keras.optimizers.Adam(lr=0.001)
# fake inputs
input_ids = tf.convert_to_tensor([[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]],
tf.int32)
attention_mask = tf.convert_to_tensor([[1, 1, 1, 1, 1, 1, 1, 1, 1, 1]],
tf.int32)
speaker_ids = tf.convert_to_tensor([0], tf.int32)
duration_gts = tf.convert_to_tensor([[1, 1, 1, 1, 1, 1, 1, 1, 1, 1]],
tf.int32)
f0_gts = tf.convert_to_tensor([[1, 1, 1, 1, 1, 1, 1, 1, 1, 1]], tf.float32)
energy_gts = tf.convert_to_tensor([[1, 1, 1, 1, 1, 1, 1, 1, 1, 1]],
tf.float32)
mel_gts = tf.random.uniform(shape=[1, 10, 80], dtype=tf.float32)
@tf.function
def one_step_training():
with tf.GradientTape() as tape:
mel_outputs_before, _, duration_outputs, _, _ = fastspeech2(
input_ids,
speaker_ids,
duration_gts,
f0_gts,
energy_gts,
training=True,
)
duration_loss = tf.keras.losses.MeanSquaredError()(
duration_gts, duration_outputs)
mel_loss = tf.keras.losses.MeanSquaredError()(mel_gts,
mel_outputs_before)
loss = duration_loss + mel_loss
gradients = tape.gradient(loss, fastspeech2.trainable_variables)
optimizer.apply_gradients(
zip(gradients, fastspeech2.trainable_variables))
tf.print(loss)
import time
for i in range(2):
if i == 1:
start = time.time()
one_step_training()
print(time.time() - start)
def _load_fastspeech2(self, path='./model_files/fastspeech2'):
config = os.path.join(path, 'config.yml')
with open(config) as f:
config = yaml.load(f, Loader=yaml.Loader)
config = FastSpeech2Config(**config["fastspeech_params"])
fastspeech2 = TFFastSpeech2(config=config,
name="fastspeech2v1",
enable_tflite_convertible=True)
fastspeech2._build()
weights = os.path.join(path, 'model-150000.h5')
fastspeech2.load_weights(weights)
print(fastspeech2.summary())
return fastspeech2
def main():
"""Run training process."""
parser = argparse.ArgumentParser(
description="Train FastSpeech (See detail in tensorflow_tts/bin/train-fastspeech.py)"
)
parser.add_argument(
"--train-dir",
default=None,
type=str,
help="directory including training data. ",
)
parser.add_argument(
"--dev-dir",
default=None,
type=str,
help="directory including development data. ",
)
parser.add_argument(
"--use-norm", default=1, type=int, help="usr norm-mels for train or raw."
)
parser.add_argument(
"--f0-stat",
default="./dump/stats_f0.npy",
type=str,
required=True,
help="f0-stat path.",
)
parser.add_argument(
"--energy-stat",
default="./dump/stats_energy.npy",
type=str,
required=True,
help="energy-stat path.",
)
parser.add_argument(
"--outdir", type=str, required=True, help="directory to save checkpoints."
)
parser.add_argument(
"--config", type=str, required=True, help="yaml format configuration file."
)
parser.add_argument(
"--resume",
default="",
type=str,
nargs="?",
help='checkpoint file path to resume training. (default="")',
)
parser.add_argument(
"--verbose",
type=int,
default=1,
help="logging level. higher is more logging. (default=1)",
)
parser.add_argument(
"--mixed_precision",
default=0,
type=int,
help="using mixed precision for generator or not.",
)
parser.add_argument(
"--pretrained",
default="",
type=str,
nargs="?",
help="pretrained weights .h5 file to load weights from. Auto-skips non-matching layers",
)
args = parser.parse_args()
# return strategy
STRATEGY = return_strategy()
# set mixed precision config
if args.mixed_precision == 1:
tf.config.optimizer.set_experimental_options({"auto_mixed_precision": True})
args.mixed_precision = bool(args.mixed_precision)
args.use_norm = bool(args.use_norm)
# set logger
if args.verbose > 1:
logging.basicConfig(
level=logging.DEBUG,
stream=sys.stdout,
format="%(asctime)s (%(module)s:%(lineno)d) %(levelname)s: %(message)s",
)
elif args.verbose > 0:
logging.basicConfig(
level=logging.INFO,
stream=sys.stdout,
format="%(asctime)s (%(module)s:%(lineno)d) %(levelname)s: %(message)s",
)
else:
logging.basicConfig(
level=logging.WARN,
stream=sys.stdout,
format="%(asctime)s (%(module)s:%(lineno)d) %(levelname)s: %(message)s",
)
logging.warning("Skip DEBUG/INFO messages")
# check directory existence
if not os.path.exists(args.outdir):
os.makedirs(args.outdir)
# check arguments
if args.train_dir is None:
raise ValueError("Please specify --train-dir")
if args.dev_dir is None:
raise ValueError("Please specify --valid-dir")
# load and save config
with open(args.config) as f:
config = yaml.load(f, Loader=yaml.Loader)
config.update(vars(args))
config["version"] = tensorflow_tts.__version__
with open(os.path.join(args.outdir, "config.yml"), "w") as f:
yaml.dump(config, f, Dumper=yaml.Dumper)
for key, value in config.items():
logging.info(f"{key} = {value}")
# get dataset
if config["remove_short_samples"]:
mel_length_threshold = config["mel_length_threshold"]
else:
mel_length_threshold = None
if config["format"] == "npy":
charactor_query = "*-ids.npy"
mel_query = "*-raw-feats.npy" if args.use_norm is False else "*-norm-feats.npy"
duration_query = "*-durations.npy"
f0_query = "*-raw-f0.npy"
energy_query = "*-raw-energy.npy"
else:
raise ValueError("Only npy are supported.")
# define train/valid dataset
train_dataset = CharactorDurationF0EnergyMelDataset(
root_dir=args.train_dir,
charactor_query=charactor_query,
mel_query=mel_query,
duration_query=duration_query,
f0_query=f0_query,
energy_query=energy_query,
f0_stat=args.f0_stat,
energy_stat=args.energy_stat,
mel_length_threshold=mel_length_threshold,
).create(
is_shuffle=config["is_shuffle"],
allow_cache=config["allow_cache"],
batch_size=config["batch_size"]
* STRATEGY.num_replicas_in_sync
* config["gradient_accumulation_steps"],
)
valid_dataset = CharactorDurationF0EnergyMelDataset(
root_dir=args.dev_dir,
charactor_query=charactor_query,
mel_query=mel_query,
duration_query=duration_query,
f0_query=f0_query,
energy_query=energy_query,
f0_stat=args.f0_stat,
energy_stat=args.energy_stat,
mel_length_threshold=mel_length_threshold,
).create(
is_shuffle=config["is_shuffle"],
allow_cache=config["allow_cache"],
batch_size=config["batch_size"] * STRATEGY.num_replicas_in_sync,
)
# define trainer
trainer = FastSpeech2Trainer(
config=config,
strategy=STRATEGY,
steps=0,
epochs=0,
is_mixed_precision=args.mixed_precision,
)
with STRATEGY.scope():
# define model
fastspeech = TFFastSpeech2(
config=FastSpeech2Config(**config["fastspeech2_params"])
)
fastspeech._build()
fastspeech.summary()
if len(args.pretrained) > 1:
fastspeech.load_weights(args.pretrained, by_name=True, skip_mismatch=True)
logging.info(
f"Successfully loaded pretrained weight from {args.pretrained}."
)
# AdamW for fastspeech
learning_rate_fn = tf.keras.optimizers.schedules.PolynomialDecay(
initial_learning_rate=config["optimizer_params"]["initial_learning_rate"],
decay_steps=config["optimizer_params"]["decay_steps"],
end_learning_rate=config["optimizer_params"]["end_learning_rate"],
)
learning_rate_fn = WarmUp(
initial_learning_rate=config["optimizer_params"]["initial_learning_rate"],
decay_schedule_fn=learning_rate_fn,
warmup_steps=int(
config["train_max_steps"]
* config["optimizer_params"]["warmup_proportion"]
),
)
optimizer = AdamWeightDecay(
learning_rate=learning_rate_fn,
weight_decay_rate=config["optimizer_params"]["weight_decay"],
beta_1=0.9,
beta_2=0.98,
epsilon=1e-6,
exclude_from_weight_decay=["LayerNorm", "layer_norm", "bias"],
)
_ = optimizer.iterations
# compile trainer
trainer.compile(model=fastspeech, optimizer=optimizer)
# start training
try:
trainer.fit(
train_dataset,
valid_dataset,
saved_path=os.path.join(config["outdir"], "checkpoints/"),
resume=args.resume,
)
except KeyboardInterrupt:
trainer.save_checkpoint()
logging.info(f"Successfully saved checkpoint @ {trainer.steps}steps.")
def main():
"""Run fastspeech2 decoding from folder."""
parser = argparse.ArgumentParser(
description=
"Decode soft-mel features from charactor with trained FastSpeech "
"(See detail in examples/fastspeech2/decode_fastspeech2.py).")
parser.add_argument(
"--rootdir",
default=None,
type=str,
required=True,
help="directory including ids/durations files.",
)
parser.add_argument("--outdir",
type=str,
required=True,
help="directory to save generated speech.")
parser.add_argument("--checkpoint",
type=str,
required=True,
help="checkpoint file to be loaded.")
parser.add_argument(
"--config",
default=None,
type=str,
required=True,
help="yaml format configuration file. if not explicitly provided, "
"it will be searched in the checkpoint directory. (default=None)",
)
parser.add_argument(
"--batch-size",
default=8,
type=int,
required=False,
help="Batch size for inference.",
)
parser.add_argument(
"--verbose",
type=int,
default=1,
help="logging level. higher is more logging. (default=1)",
)
args = parser.parse_args()
# set logger
if args.verbose > 1:
logging.basicConfig(
level=logging.DEBUG,
format=
"%(asctime)s (%(module)s:%(lineno)d) %(levelname)s: %(message)s",
)
elif args.verbose > 0:
logging.basicConfig(
level=logging.INFO,
format=
"%(asctime)s (%(module)s:%(lineno)d) %(levelname)s: %(message)s",
)
else:
logging.basicConfig(
level=logging.WARN,
format=
"%(asctime)s (%(module)s:%(lineno)d) %(levelname)s: %(message)s",
)
logging.warning("Skip DEBUG/INFO messages")
# check directory existence
if not os.path.exists(args.outdir):
os.makedirs(args.outdir)
# load config
with open(args.config) as f:
config = yaml.load(f, Loader=yaml.Loader)
config.update(vars(args))
if config["format"] == "npy":
char_query = "*-ids.npy"
char_load_fn = np.load
else:
raise ValueError("Only npy is supported.")
# define data-loader
dataset = CharactorDataset(
root_dir=args.rootdir,
charactor_query=char_query,
charactor_load_fn=char_load_fn,
return_utt_id=True,
)
dataset = dataset.create(batch_size=args.batch_size)
# define model and load checkpoint
fastspeech2 = TFFastSpeech2(
config=FastSpeech2Config(**config["fastspeech_params"]),
name="fastspeech2")
fastspeech2._build()
fastspeech2.load_weights(args.checkpoint)
for data in tqdm(dataset, desc="Decoding"):
utt_ids = data[0]
char_ids = data[1]
# fastspeech inference.
(
masked_mel_before,
masked_mel_after,
duration_outputs,
_,
_,
) = fastspeech2.inference(
char_ids,
attention_mask=tf.math.not_equal(char_ids, 0),
speaker_ids=tf.zeros(shape=[tf.shape(char_ids)[0]],
dtype=tf.int32),
speed_ratios=tf.ones(shape=[tf.shape(char_ids)[0]],
dtype=tf.float32),
f0_ratios=tf.ones(shape=[tf.shape(char_ids)[0]], dtype=tf.float32),
energy_ratios=tf.ones(shape=[tf.shape(char_ids)[0]],
dtype=tf.float32),
)
# convert to numpy
masked_mel_befores = masked_mel_before.numpy()
masked_mel_afters = masked_mel_after.numpy()
for (utt_id, mel_before, mel_after,
durations) in zip(utt_ids, masked_mel_befores, masked_mel_afters,
duration_outputs):
# real len of mel predicted
real_length = durations.numpy().sum()
utt_id = utt_id.numpy().decode("utf-8")
# save to folder.
np.save(
os.path.join(args.outdir, f"{utt_id}-fs-before-feats.npy"),
mel_before[:real_length, :].astype(np.float32),
allow_pickle=False,
)
np.save(
os.path.join(args.outdir, f"{utt_id}-fs-after-feats.npy"),
mel_after[:real_length, :].astype(np.float32),
allow_pickle=False,
)
def main():
"""Run fastspeech2 decoding from folder."""
parser = argparse.ArgumentParser(
description=
"Decode soft-mel features from charactor with trained FastSpeech "
"(See detail in examples/fastspeech2/decode_fastspeech2.py).")
parser.add_argument(
"--rootdir",
default=None,
type=str,
required=True,
help="directory including ids/durations files.",
)
parser.add_argument("--outdir",
type=str,
required=True,
help="directory to save generated speech.")
parser.add_argument("--checkpoint",
type=str,
required=True,
help="checkpoint file to be loaded.")
parser.add_argument(
"--config",
default=None,
type=str,
required=True,
help="yaml format configuration file. if not explicitly provided, "
"it will be searched in the checkpoint directory. (default=None)",
)
parser.add_argument(
"--batch-size",
default=8,
type=int,
required=False,
help="Batch size for inference.",
)
parser.add_argument(
"--verbose",
type=int,
default=1,
help="logging level. higher is more logging. (default=1)",
)
args = parser.parse_args()
# set logger
if args.verbose > 1:
logging.basicConfig(
level=logging.DEBUG,
format=
"%(asctime)s (%(module)s:%(lineno)d) %(levelname)s: %(message)s",
)
elif args.verbose > 0:
logging.basicConfig(
level=logging.INFO,
format=
"%(asctime)s (%(module)s:%(lineno)d) %(levelname)s: %(message)s",
)
else:
logging.basicConfig(
level=logging.WARN,
format=
"%(asctime)s (%(module)s:%(lineno)d) %(levelname)s: %(message)s",
)
logging.warning("Skip DEBUG/INFO messages")
# check directory existence
if not os.path.exists(args.outdir):
os.makedirs(args.outdir)
# load config
outdpost = os.path.join(args.outdir, "postnets")
if not os.path.exists(outdpost):
os.makedirs(outdpost)
with open(args.config) as f:
config = yaml.load(f, Loader=yaml.Loader)
config.update(vars(args))
if config["format"] == "npy":
char_query = "*-ids.npy"
char_load_fn = np.load
else:
raise ValueError("Only npy is supported.")
# define data-loader
dataset = CharactorDurationF0EnergyMelDataset(
root_dir=args.rootdir,
charactor_query=char_query,
charactor_load_fn=char_load_fn,
)
dataset = dataset.create(
batch_size=1
) # force batch size to 1 otherwise it may miss certain files
# define model and load checkpoint
fastspeech2 = TFFastSpeech2(
config=FastSpeech2Config(**config["fastspeech2_params"]),
name="fastspeech2")
fastspeech2._build()
fastspeech2.load_weights(args.checkpoint)
fastspeech2 = tf.function(fastspeech2, experimental_relax_shapes=True)
for data in tqdm(dataset, desc="Decoding"):
utt_ids = data["utt_ids"]
char_ids = data["input_ids"]
mel_lens = data["mel_lengths"]
# fastspeech inference.
masked_mel_before, masked_mel_after, duration_outputs, _, _ = fastspeech2(
**data, training=True)
# convert to numpy
masked_mel_befores = masked_mel_before.numpy()
masked_mel_afters = masked_mel_after.numpy()
for (utt_id, mel_before, mel_after, durations,
mel_len) in zip(utt_ids, masked_mel_befores, masked_mel_afters,
duration_outputs, mel_lens):
# real len of mel predicted
real_length = np.around(durations.numpy().sum()).astype(int)
utt_id = utt_id.numpy().decode("utf-8")
np.save(
os.path.join(outdpost, f"{utt_id}-postnet.npy"),
mel_after[:mel_len, :].astype(np.float32),
allow_pickle=False,
)
def main():
"""Run training process."""
parser = argparse.ArgumentParser(description="Train Tacotron2")
parser.add_argument("--outdir",
type=str,
required=True,
help="directory to save checkpoints.")
parser.add_argument("--rootdir",
type=str,
required=True,
help="dataset directory root")
parser.add_argument(
"--resume",
default="",
type=str,
nargs="?",
help='checkpoint file path to resume training. (default="")')
parser.add_argument(
"--verbose",
type=int,
default=1,
help="logging level. higher is more logging. (default=1)")
parser.add_argument("--batch-size",
default=16,
type=int,
help="batch size.")
parser.add_argument("--mixed_precision",
default=0,
type=int,
help="using mixed precision for generator or not.")
parser.add_argument(
"--pretrained",
default="",
type=str,
nargs="?",
help=
'pretrained weights .h5 file to load weights from. Auto-skips non-matching layers',
)
args = parser.parse_args()
if args.resume is not None and os.path.isdir(args.resume):
args.resume = tf.train.latest_checkpoint(args.resume)
# set mixed precision config
if args.mixed_precision == 1:
tf.config.optimizer.set_experimental_options(
{"auto_mixed_precision": True})
args.mixed_precision = bool(args.mixed_precision)
# set logger
log_format = "%(asctime)s (%(module)s:%(lineno)d) %(levelname)s: %(message)s"
if args.verbose > 1:
logging.basicConfig(level=logging.DEBUG,
stream=sys.stdout,
format=log_format)
elif args.verbose > 0:
logging.basicConfig(level=logging.INFO,
stream=sys.stdout,
format=log_format)
else:
logging.basicConfig(level=logging.WARN,
stream=sys.stdout,
format=log_format)
logging.warning("Skip DEBUG/INFO messages")
# check directory existence(checkpoint)
if not os.path.exists(args.outdir):
os.makedirs(args.outdir)
# select processor
Processor = JSpeechProcessor # for test
class Generator(Processor.Generator):
def __init__(self):
super().__init__()
self._scaler_energy = StandardScaler(copy=False)
self._scaler_f0 = StandardScaler(copy=False)
self._energy_stat = np.stack((0, 0))
self._f0_stat = np.stack((0, 0))
def __call__(self, rootdir, tid, seq, speaker):
tid, seq, feat_path, speaker = super().__call__(
rootdir, tid, seq, speaker)
f0_path = os.path.join(rootdir, "f0", f"{tid}.f0")
energy_path = os.path.join(rootdir, "energies", f"{tid}.e")
duration_path = os.path.join(rootdir, "durations", f"{tid}.dur")
with open(f0_path) as f:
f0 = np.fromfile(f, dtype='float32')
self._scaler_f0.partial_fit(f0[f0 != 0].reshape(-1, 1))
with open(energy_path) as f:
energy = np.fromfile(f, dtype='float32')
self._scaler_energy.partial_fit(energy[energy != 0].reshape(
-1, 1))
return tid, seq, feat_path, f0_path, energy_path, duration_path, speaker
def complete(self):
self._f0_stat = np.stack(
(self._scaler_f0.mean_, self._scaler_f0.scale_))
self._energy_stat = np.stack(
(self._scaler_energy.mean_, self._scaler_energy.scale_))
print("energy stat: mean {}, scale {}".format(
self._energy_stat[0], self._energy_stat[1]))
print("f0 stat: mean {}, scale {}".format(self._f0_stat[0],
self._f0_stat[1]))
def energy_stat(self):
return self._energy_stat
def f0_stat(self):
return self._f0_stat
generator = Generator()
processor = Processor(rootdir=args.rootdir, generator=generator)
config = Config(args.outdir, args.batch_size, processor.vocab_size())
# split train and test
train_split, valid_split = train_test_split(processor.items,
test_size=config.test_size,
random_state=42,
shuffle=True)
train_dataset = generate_datasets(train_split, config, generator.f0_stat(),
generator.energy_stat())
valid_dataset = generate_datasets(valid_split, config, generator.f0_stat(),
generator.energy_stat())
# define trainer
trainer = FastSpeech2Trainer(config=config,
strategy=STRATEGY,
steps=0,
epochs=0,
is_mixed_precision=args.mixed_precision)
with STRATEGY.scope():
# define model
fastspeech = TFFastSpeech2(config=config)
# build
fastspeech._build()
fastspeech.summary()
if len(args.pretrained) > 1:
fastspeech.load_weights(args.pretrained,
by_name=True,
skip_mismatch=True)
logging.info(
f"Successfully loaded pretrained weight from {args.pretrained}."
)
# AdamW for fastspeech
learning_rate_fn = tf.keras.optimizers.schedules.PolynomialDecay(
initial_learning_rate=config.initial_learning_rate,
decay_steps=config.decay_steps,
end_learning_rate=config.end_learning_rate,
)
learning_rate_fn = WarmUp(
initial_learning_rate=config.initial_learning_rate,
decay_schedule_fn=learning_rate_fn,
warmup_steps=int(config.train_max_steps *
config.warmup_proportion))
optimizer = AdamWeightDecay(
learning_rate=learning_rate_fn,
weight_decay_rate=config.weight_decay,
beta_1=0.9,
beta_2=0.98,
epsilon=1e-6,
exclude_from_weight_decay=["LayerNorm", "layer_norm", "bias"],
)
_ = optimizer.iterations
# compile trainer
trainer.compile(model=fastspeech, optimizer=optimizer)
# start training
try:
trainer.fit(train_dataset,
valid_dataset,
saved_path=os.path.join(config.outdir, "checkpoints/"),
resume=args.resume)
except KeyboardInterrupt:
trainer.save_checkpoint()
logging.info(f"Successfully saved checkpoint @ {trainer.steps}steps.")
def main():
parser = argparse.ArgumentParser(description="Dump FastSpeech2")
parser.add_argument("--outdir",
default="./",
type=str,
help="directory to save pb or tflite file.")
parser.add_argument("--checkpoint",
type=str,
required=True,
help="checkpoint file to be loaded.")
parser.add_argument("--vocab_size",
type=int,
required=True,
help="vocab size")
parser.add_argument("--tflite",
type=bool,
default=False,
help="saved model to tflite")
args = parser.parse_args()
# check directory existence(checkpoint)
if not os.path.exists(args.outdir):
os.makedirs(args.outdir)
if args.checkpoint is not None and os.path.isdir(args.checkpoint):
args.checkpoint = tf.train.latest_checkpoint(args.checkpoint)
save_name = os.path.splitext(os.path.basename(args.checkpoint))[0]
config = Config(args.outdir, args.vocab_size)
# define model.
fastspeech2 = TFFastSpeech2(config=config,
name="fastspeech2",
enable_tflite_convertible=args.tflite)
#build
if args.tflite is True:
print("dump tflite => vocab_size: {}".format(args.vocab_size))
input_ids = tf.convert_to_tensor([[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]],
tf.int32)
speaker_ids = tf.convert_to_tensor([0], tf.int32)
duration_gts = tf.convert_to_tensor([[1, 1, 1, 1, 1, 1, 1, 1, 1, 1]],
tf.int32)
f0_gts = tf.convert_to_tensor(
[[10, 10, 10, 10, 10, 10, 10, 10, 10, 10]], tf.float32)
energy_gts = tf.convert_to_tensor(
[[10, 10, 10, 10, 10, 10, 10, 10, 10, 10]], tf.float32)
fastspeech2(input_ids, speaker_ids, duration_gts, f0_gts, energy_gts)
fastspeech2.load_weights(args.checkpoint)
fastspeech2.summary()
fastspeech2_concrete_function = fastspeech2.inference_tflite.get_concrete_function(
)
converter = tf.lite.TFLiteConverter.from_concrete_functions(
[fastspeech2_concrete_function])
converter.optimizations = [tf.lite.Optimize.DEFAULT]
converter.target_spec.supported_ops = [
tf.lite.OpsSet.TFLITE_BUILTINS, tf.lite.OpsSet.SELECT_TF_OPS
]
tflite_model = converter.convert()
with open(os.path.join(args.outdir, "{}.tflite".format(save_name)),
'wb') as f:
f.write(tflite_model)
else:
print("dump => vocab_size: {}".format(args.vocab_size))
# tensorflow-gpu==2.3.0 bug to load_weight after call inference
fastspeech2.inference(
input_ids=tf.expand_dims(tf.convert_to_tensor([1], dtype=tf.int32),
0),
speaker_ids=tf.convert_to_tensor([0], dtype=tf.int32),
speed_ratios=tf.convert_to_tensor([1.0], dtype=tf.float32),
f0_ratios=tf.convert_to_tensor([1.0], dtype=tf.float32),
energy_ratios=tf.convert_to_tensor([1.0], dtype=tf.float32))
fastspeech2.load_weights(args.checkpoint)
tf.saved_model.save(fastspeech2,
os.path.join(args.outdir, save_name),
signatures=fastspeech2.inference)