def __init__(self, config=None, training=True, train_form='Both'):
# Load vocabulary
self.char2idx, self.idx2char = load_vocab()
self.graph = tf.Graph()
with self.graph.as_default():
if training:
self.origx, self.x, self.y1, self.y2, self.y3, self.num_batch = get_batch(
config, train_form)
self.prev_max_attentions_li = tf.ones(shape=(hp.dec_layers,
self.num_batch),
dtype=tf.int32)
else: # Evaluation
self.x = tf.placeholder(tf.int32, shape=(1, hp.T_x))
self.y1 = tf.placeholder(tf.float32,
shape=(1, hp.T_y // hp.r,
hp.n_mels * hp.r))
self.prev_max_attentions_li = tf.placeholder(tf.int32,
shape=(
hp.dec_layers,
1,
))
# Get decoder inputs: feed last frames only
if train_form != 'Converter':
self.decoder_input = tf.concat(
(tf.zeros_like(self.y1[:, :1, -hp.n_mels:]),
self.y1[:, :-1, -hp.n_mels:]), 1)
# Networks
if train_form != 'Converter':
with tf.variable_scope("encoder"):
self.encoded = encoder(self.x, training=training)
with tf.variable_scope("decoder"):
self.mel_logits, self.done_output, self.max_attentions_li = decoder(
self.decoder_input,
self.encoded,
self.prev_max_attentions_li,
training=training)
#self.mel_output = self.mel_logits
self.mel_output = tf.nn.sigmoid(self.mel_logits)
if train_form == 'Both':
with tf.variable_scope("converter"):
#self.converter_input = tf.reshape(self.mel_output, (-1, hp.T_y, hp.n_mels))
self.converter_input = self.mel_output
self.mag_logits = converter(self.converter_input,
training=training)
self.mag_output = tf.nn.sigmoid(self.mag_logits)
elif train_form == 'Converter':
with tf.variable_scope("converter"):
#self.converter_input = tf.reshape(self.mel_output, (-1, hp.T_y, hp.n_mels))
self.converter_input = self.y1
self.mag_logits = converter(self.converter_input,
training=training)
self.mag_output = tf.nn.sigmoid(self.mag_logits)
self.global_step = tf.Variable(0,
name='global_step',
trainable=False)
if training:
# Loss
if train_form != 'Converter':
self.loss1 = tf.reduce_mean(
tf.abs(self.mel_output - self.y1))
if hp.include_dones:
self.loss2 = tf.reduce_mean(
tf.nn.sparse_softmax_cross_entropy_with_logits(
logits=self.done_output, labels=self.y2))
if train_form != 'Encoder':
self.loss3 = tf.reduce_mean(
tf.abs(self.mag_output - self.y3))
if train_form == 'Both':
if hp.include_dones:
self.loss = self.loss1 + self.loss2 + self.loss3
else:
self.loss = self.loss1 + self.loss3
elif train_form == 'Encoder':
if hp.include_dones:
self.loss = self.loss1 + self.loss2
else:
self.loss = self.loss1
else:
self.loss = self.loss3
# Training Scheme
self.optimizer = tf.train.AdamOptimizer(learning_rate=hp.lr)
## gradient clipping
self.gvs = self.optimizer.compute_gradients(self.loss)
self.clipped = []
for grad, var in self.gvs:
grad = grad if grad is None else tf.clip_by_value(
grad, -1. * hp.max_grad_val, hp.max_grad_val)
grad = grad if grad is None else tf.clip_by_norm(
grad, hp.max_grad_norm)
self.clipped.append((grad, var))
self.train_op = self.optimizer.apply_gradients(
self.clipped, global_step=self.global_step)
# Summary
tf.summary.scalar('loss', self.loss)
if train_form != 'Converter':
tf.summary.histogram('mel_output', self.mel_output)
tf.summary.histogram('mel_actual', self.y1)
tf.summary.scalar('loss1', self.loss1)
if hp.include_dones:
tf.summary.histogram('done_output', self.done_output)
tf.summary.histogram('done_actual', self.y2)
tf.summary.scalar('loss2', self.loss2)
if train_form != 'Encoder':
tf.summary.histogram('mag_output', self.mag_output)
tf.summary.histogram('mag_actual', self.y3)
tf.summary.scalar('loss3', self.loss3)
self.merged = tf.summary.merge_all()
def __init__(self, config=None, training=True):
# Load vocabulary
self.char2idx, self.idx2char = load_vocab()
self.graph = tf.Graph()
with self.graph.as_default():
# Data Feeding
## x: Text. (N, T_x), int32
## y1: Reduced melspectrogram. (N, T_y//r, n_mels*r) float32
## y2: Reduced dones. (N, T_y//r,) int32
## z: Magnitude. (N, T_y, n_fft//2+1) float32
if training:
self.origx, self.x, self.y1, self.y2, self.y3, self.num_batch = get_batch(
config)
#self.origx, self.x, self.y1, self.y3, self.num_batch = get_batch(config)
self.prev_max_attentions_li = tf.ones(shape=(hp.dec_layers,
hp.batch_size),
dtype=tf.int32)
else: # Evaluation
self.x = tf.placeholder(tf.int32, shape=(1, hp.T_x))
self.y1 = tf.placeholder(tf.float32,
shape=(1, hp.T_y // hp.r,
hp.n_mels * hp.r))
self.prev_max_attentions_li = tf.placeholder(tf.int32,
shape=(
hp.dec_layers,
1,
))
# Get decoder inputs: feed last frames only (N, Ty//r, n_mels)
self.decoder_input = tf.concat((tf.zeros_like(
self.y1[:, :1, -hp.n_mels:]), self.y1[:, :-1, -hp.n_mels:]), 1)
# Networks
with tf.variable_scope("encoder"):
self.keys, self.vals = encoder(self.x,
training=training) # (N, Tx, e)
with tf.variable_scope("decoder"):
#self.mel_logits, self.decoder_output, self.alignments_li, self.max_attentions_li \
self.mel_logits, self.done_output, self.decoder_output, self.alignments_li, self.max_attentions_li \
= decoder(self.decoder_input,
self.keys,
self.vals,
self.prev_max_attentions_li,
training=training)
self.mel_output = tf.nn.sigmoid(self.mel_logits)
with tf.variable_scope("converter"):
# Restore shape
self.converter_input = tf.reshape(
self.decoder_output, (-1, hp.T_y, hp.embed_size // hp.r))
self.converter_input = fc_block(
self.converter_input,
hp.converter_channels,
activation_fn=tf.nn.relu,
training=training) # (N, Ty, v)
# Converter
#self.mag_logits = converter(self.converter_input, training=training)
# self.converter_input = tf.reshape(self.mel_output, (-1, hp.T_y, hp.n_mels))
self.mag_logits = converter(self.converter_input,
training=training)
self.mag_output = tf.nn.sigmoid(self.mag_logits)
self.global_step = tf.Variable(0,
name='global_step',
trainable=False)
if training:
# Loss
self.loss1 = tf.reduce_mean(tf.abs(self.mel_output - self.y1))
self.loss2 = tf.reduce_mean(
tf.nn.sparse_softmax_cross_entropy_with_logits(
logits=self.done_output, labels=self.y2))
self.loss3 = tf.reduce_mean(tf.abs(self.mag_output - self.y3))
self.loss = self.loss1 + self.loss2 + self.loss3
#self.loss = self.loss1 + self.loss3
# Training Scheme
self.optimizer = tf.train.AdamOptimizer(learning_rate=hp.lr)
## gradient clipping
self.gvs = self.optimizer.compute_gradients(self.loss)
self.clipped = []
for grad, var in self.gvs:
grad = grad if grad is None else tf.clip_by_value(
grad, -1. * hp.max_grad_val, hp.max_grad_val)
grad = grad if grad is None else tf.clip_by_norm(
grad, hp.max_grad_norm)
self.clipped.append((grad, var))
self.train_op = self.optimizer.apply_gradients(
self.clipped, global_step=self.global_step)
# Summary
tf.summary.histogram('mel_output', self.mel_output)
tf.summary.histogram('mel_actual', self.y1)
tf.summary.histogram('done_output', self.done_output)
tf.summary.histogram('done_actual', self.y2)
tf.summary.histogram('mag_output', self.mag_output)
tf.summary.histogram('mag_actual', self.y3)
tf.summary.scalar('loss', self.loss)
tf.summary.scalar('loss1', self.loss1)
tf.summary.scalar('loss2', self.loss2)
tf.summary.scalar('loss3', self.loss3)
self.merged = tf.summary.merge_all()
def __init__(self, training=True):
# Load vocabulary
self.char2idx, self.idx2char = load_vocab()
# Graph
self.graph = tf.Graph()
with self.graph.as_default():
# Data Feeding
## x: Text. (N, Tx), int32
## y1: Reduced melspectrogram. (N, Ty//r, n_mels*r) float32
## y2: Reduced dones. (N, Ty//r,) int32
## z: Magnitude. (N, Ty, n_fft//2+1) float32
if training:
self.x, self.y1, self.y2, self.z, self.num_batch = get_batch()
self.prev_max_attentions_li = tf.ones(shape=(hp.dec_layers, hp.batch_size), dtype=tf.int32)
else: # Inference
self.x = tf.placeholder(tf.int32, shape=(hp.batch_size, hp.Tx))
self.y1 = tf.placeholder(tf.float32, shape=(hp.batch_size, hp.Ty//hp.r, hp.n_mels*hp.r))
self.prev_max_attentions_li = tf.placeholder(tf.int32, shape=(hp.dec_layers, hp.batch_size,))
# Get decoder inputs: feed last frames only (N, Ty//r, n_mels)
self.decoder_input = tf.concat((tf.zeros_like(self.y1[:, :1, -hp.n_mels:]), self.y1[:, :-1, -hp.n_mels:]), 1)
# Networks
with tf.variable_scope("encoder"):
self.keys, self.vals = encoder(self.x, training=training) # (N, Tx, e)
with tf.variable_scope("decoder"):
# mel_logits: (N, Ty/r, n_mels*r)
# done_output: (N, Ty/r, 2),
# decoder_output: (N, Ty/r, e)
# alignments_li: dec_layers*(Tx, Ty/r)
# max_attentions_li: dec_layers*(N, T_y/r)
self.mel_logits, self.done_output, self.decoder_output, self.alignments_li, self.max_attentions_li \
= decoder(self.decoder_input,
self.keys,
self.vals,
self.prev_max_attentions_li,
training=training)
self.mel_output = tf.nn.sigmoid(self.mel_logits)
with tf.variable_scope("converter"):
# Restore shape
self.converter_input = tf.reshape(self.decoder_output, (-1, hp.Ty, hp.embed_size//hp.r))
self.converter_input = fc_block(self.converter_input,
hp.converter_channels,
activation_fn=tf.nn.relu,
training=training) # (N, Ty, v)
# Converter
self.mag_logits = converter(self.converter_input, training=training) # (N, Ty, 1+n_fft//2)
self.mag_output = tf.nn.sigmoid(self.mag_logits)
self.global_step = tf.Variable(0, name='global_step', trainable=False)
if training:
# Loss
self.loss_mels = tf.reduce_mean(tf.abs(self.mel_output - self.y1))
self.loss_dones = tf.reduce_mean(tf.nn.sparse_softmax_cross_entropy_with_logits(logits=self.done_output, labels=self.y2))
self.loss_mags = tf.reduce_mean(tf.abs(self.mag_output - self.z))
self.loss = self.loss_mels + self.loss_dones + self.loss_mags
# Training Scheme
self.optimizer = tf.train.AdamOptimizer(learning_rate=hp.lr)
## gradient clipping
self.gvs = self.optimizer.compute_gradients(self.loss)
self.clipped = []
for grad, var in self.gvs:
grad = tf.clip_by_value(grad, -1. * hp.max_grad_val, hp.max_grad_val)
grad = tf.clip_by_norm(grad, hp.max_grad_norm)
self.clipped.append((grad, var))
self.train_op = self.optimizer.apply_gradients(self.clipped, global_step=self.global_step)
# Summary
tf.summary.scalar('Train_Loss/LOSS', self.loss)
tf.summary.scalar('Train_Loss/mels', self.loss_mels)
tf.summary.scalar('Train_Loss/dones', self.loss_dones)
tf.summary.scalar('Train_Loss/mags', self.loss_mags)
self.merged = tf.summary.merge_all()
def __init__(self, training=True):
# Load vocabulary
self.char2idx, self.idx2char = load_vocab()
self.graph = tf.Graph()
with self.graph.as_default():
# Data Feeding
## x: Text. (N, T_x), int32
## y1: Reduced melspectrogram. (N, T_y//r, n_mels*r) float32
## y2: Reduced dones. (N, T_y//r,) int32
## z: Magnitude. (N, T_y, n_fft//2+1) float32
if training:
self.x, self.y1, self.y2, self.z, self.num_batch = get_batch()
self.prev_max_attentions = tf.constant([0] * hp.batch_size)
else: # Evaluation
self.x = tf.placeholder(tf.int32,
shape=(hp.batch_size, hp.T_x))
self.y1 = tf.placeholder(tf.float32,
shape=(hp.batch_size, hp.T_y // hp.r,
hp.n_mels * hp.r))
self.prev_max_attentions = tf.placeholder(
tf.int32, shape=(hp.batch_size, ))
# Get decoder inputs: feed last frames only (N, T_y//r, n_mels)
self.decoder_input = tf.concat((tf.zeros_like(
self.y1[:, :1, -hp.n_mels:]), self.y1[:, :-1, -hp.n_mels:]), 1)
# Networks
with tf.variable_scope("net"):
# Encoder. keys: (N, T_x, e), vals: (N, T_x, e)
self.keys, self.vals, self.masks = encoder(self.x,
training=training,
scope="encoder")
# Decoder. mel_output: (N, T_y/r, n_mels*r), done_output: (N, T_y/r, 2),
# decoder_output: (N, T_y/r, e), alignments: (N, T_y, T_x)
self.mel_output, self.done_output, self.decoder_output, self.alignments, self.max_attentions = decoder(
self.decoder_input,
self.keys,
self.vals,
self.masks,
self.prev_max_attentions,
training=training,
scope="decoder",
reuse=None)
# Restore shape. converter_input: (N, T_y, e/r)
self.converter_input = tf.reshape(self.decoder_output,
(hp.batch_size, hp.T_y, -1))
self.converter_input = normalize(self.converter_input,
type=hp.norm_type,
training=training,
activation_fn=tf.nn.relu)
# Converter. mag_output: (N, T_y, 1+n_fft//2)
self.mag_output = converter(self.converter_input,
training=training,
scope="converter")
if training:
# Loss
self.loss1_mae = tf.reduce_mean(
tf.abs(self.mel_output - self.y1))
self.loss1_ce = tf.reduce_mean(
tf.nn.sparse_softmax_cross_entropy_with_logits(
logits=self.done_output, labels=self.y2))
self.loss2 = tf.reduce_mean(tf.abs(self.mag_output - self.z))
self.loss = self.loss1_mae + self.loss1_ce + self.loss2
# Training Scheme
self.global_step = tf.Variable(0,
name='global_step',
trainable=False)
self.optimizer = tf.train.AdamOptimizer(learning_rate=hp.lr)
## gradient clipping
self.gvs = self.optimizer.compute_gradients(self.loss)
self.clipped = []
for grad, var in self.gvs:
grad = tf.clip_by_value(grad, -1. * hp.max_grad_val,
hp.max_grad_val)
grad = tf.clip_by_norm(grad, hp.max_grad_norm)
self.clipped.append((grad, var))
self.train_op = self.optimizer.apply_gradients(
self.clipped, global_step=self.global_step)
# Summary
tf.summary.scalar('loss', self.loss)
tf.summary.scalar('loss1_mae', self.loss1_mae)
tf.summary.scalar('loss1_ce', self.loss1_ce)
tf.summary.scalar('loss2', self.loss2)
self.merged = tf.summary.merge_all()
def __init__(self, training=True):
# Load vocabulary
self.char2idx, self.idx2char = load_vocab()
# Graph
self.graph = tf.Graph()
with self.graph.as_default():
# Data Feeding
## x: Text. (N, Tx), int32
## y1: Melspectrogram. (N, Ty, n_mels) float32
## y2: Dones. (N, Ty) int32
## z: Magnitude. (N, Ty, n_fft//2+1) float32
if training:
self.x, self.y1, self.y2, self.z = get_batch()
self.prev_max_attentions_li = tf.ones(shape=(hp.dec_layers,
hp.batch_size),
dtype=tf.int32)
else: # Inference
self.x = tf.placeholder(tf.int32, shape=(hp.batch_size, hp.Tx))
self.y1 = tf.placeholder(tf.float32,
shape=(hp.batch_size, hp.Ty // hp.r,
hp.n_mels * hp.r))
self.prev_max_attentions_li = tf.placeholder(tf.int32,
shape=(
hp.dec_layers,
hp.batch_size,
))
# Get decoder inputs: feed last frames only (N, Ty, n_mels)
self.decoder_input = tf.concat((tf.zeros_like(
self.y1[:, :1, -hp.n_mels:]), self.y1[:, :-1, -hp.n_mels:]), 1)
# Networks
with tf.variable_scope("encoder"):
self.keys, self.vals = encoder(self.x,
training=training) # (N, Tx, e)
with tf.variable_scope("decoder"):
# mel_logits: (N, Ty, n_mels)
# done_output: (N, Ty, 2),
# decoder_output: (N, Ty, e)
# alignments_li: dec_layers*(Tx, Ty)
# max_attentions_li: dec_layers*(N, T_y)
self.mel_logits, self.done_output, self.decoder_output, self.alignments_li, self.max_attentions_li = decoder(
self.decoder_input,
self.keys,
self.vals,
self.prev_max_attentions_li,
training=training)
self.mel_output = tf.nn.sigmoid(self.mel_logits)
with tf.variable_scope("converter"):
# Restore shape
self.converter_input = tf.reshape(self.decoder_output,
(-1, hp.Ty, hp.embed_size))
self.converter_input = fc_block(
self.converter_input,
hp.converter_channels,
activation_fn=tf.nn.relu,
training=training) # (N, Ty, v)
# Converter
self.mag_logits = converter(
self.converter_input,
training=training) # (N, Ty, 1+n_fft//2)
self.mag_output = tf.nn.sigmoid(self.mag_logits)
self.global_step = tf.Variable(0,
name='global_step',
trainable=False)
if training:
# Loss
self.loss_mels = tf.reduce_mean(
tf.abs(self.mel_output - self.y1))
self.loss_dones = tf.reduce_mean(
tf.nn.sparse_softmax_cross_entropy_with_logits(
logits=self.done_output, labels=self.y2))
self.loss_mags = tf.reduce_mean(
tf.abs(self.mag_output - self.z))
self.loss = self.loss_mels + self.loss_dones + self.loss_mags
# Training Scheme
self.optimizer = tf.train.AdamOptimizer(learning_rate=hp.lr)
## gradient clipping
self.gvs = self.optimizer.compute_gradients(self.loss)
self.clipped = []
for grad, var in self.gvs:
grad = tf.clip_by_value(grad, -1. * hp.max_grad_val,
hp.max_grad_val)
grad = tf.clip_by_norm(grad, hp.max_grad_norm)
self.clipped.append((grad, var))
self.train_op = self.optimizer.apply_gradients(
self.clipped, global_step=self.global_step)
# Summary
tf.summary.scalar('Train_Loss/LOSS', self.loss)
tf.summary.scalar('Train_Loss/mels', self.loss_mels)
tf.summary.scalar('Train_Loss/dones', self.loss_dones)
tf.summary.scalar('Train_Loss/mags', self.loss_mags)
self.merged = tf.summary.merge_all()