def main():
opt = TrainOptions().parse()
device = torch.device("cuda:{}".format(opt.gpu_ids[0]) if len(opt.gpu_ids)
> 0 and torch.cuda.is_available() else "cpu")
visualizer = Visualizer(opt)
logging = visualizer.get_logger()
loss_report = visualizer.add_plot_report(['train/loss', 'val/loss'],
'loss.png')
# data
logging.info("Building dataset.")
train_dataset = MixSequentialDataset(
opt,
os.path.join(opt.dataroot, 'train'),
os.path.join(opt.dict_dir, 'train_units.txt'),
)
val_dataset = MixSequentialDataset(
opt,
os.path.join(opt.dataroot, 'dev'),
os.path.join(opt.dict_dir, 'train_units.txt'),
)
train_sampler = BucketingSampler(train_dataset, batch_size=opt.batch_size)
train_loader = MixSequentialDataLoader(train_dataset,
num_workers=opt.num_workers,
batch_sampler=train_sampler)
val_loader = MixSequentialDataLoader(val_dataset,
batch_size=int(opt.batch_size / 2),
num_workers=opt.num_workers,
shuffle=False)
opt.idim = train_dataset.get_feat_size()
opt.odim = train_dataset.get_num_classes()
opt.char_list = train_dataset.get_char_list()
opt.train_dataset_len = len(train_dataset)
logging.info('#input dims : ' + str(opt.idim))
logging.info('#output dims: ' + str(opt.odim))
logging.info("Dataset ready!")
lr = opt.lr
eps = opt.eps
iters = opt.iters
best_loss = opt.best_loss
start_epoch = opt.start_epoch
model_path = None
if opt.enhace_resume:
model_path = os.path.join(opt.works_dir, opt.enhace_resume)
if os.path.isfile(model_path):
package = torch.load(model_path,
map_location=lambda storage, loc: storage)
lr = package.get('lr', opt.lr)
eps = package.get('eps', opt.eps)
best_loss = package.get('best_loss', float('inf'))
start_epoch = int(package.get('epoch', 0))
iters = int(package.get('iters', 0))
loss_report = package.get('loss_report', loss_report)
visualizer.set_plot_report(loss_report, 'loss.png')
print('package found at {} and start_epoch {} iters {}',
format(model_path, start_epoch, iters))
else:
print("no checkpoint found at {}".format(model_path))
enhance_model = EnhanceModel.load_model(model_path, 'enhance_state_dict',
opt)
# Setup an optimizer
enhance_parameters = filter(lambda p: p.requires_grad,
enhance_model.parameters())
if opt.opt_type == 'adadelta':
enhance_optimizer = torch.optim.Adadelta(enhance_parameters,
rho=0.95,
eps=opt.eps)
elif opt.opt_type == 'adam':
enhance_optimizer = torch.optim.Adam(enhance_parameters,
lr=opt.lr,
betas=(opt.beta1, 0.999))
# Training
for epoch in range(start_epoch, opt.epochs):
enhance_model.train()
if epoch > opt.shuffle_epoch:
print("Shuffling batches for the following epochs")
train_sampler.shuffle(epoch)
for i, (data) in enumerate(train_loader,
start=(iters % len(train_dataset))):
utt_ids, spk_ids, clean_inputs, clean_log_inputs, mix_inputs, mix_log_inputs, cos_angles, targets, input_sizes, target_sizes = data
loss, enhance_out = enhance_model(clean_inputs, mix_inputs,
mix_log_inputs, cos_angles,
input_sizes)
enhance_optimizer.zero_grad() # Clear the parameter gradients
loss.backward()
# compute the gradient norm to check if it is normal or not
grad_norm = torch.nn.utils.clip_grad_norm_(
enhance_model.parameters(), opt.grad_clip)
if math.isnan(grad_norm):
logging.warning('grad norm is nan. Do not update model.')
else:
enhance_optimizer.step()
iters += 1
errors = {'train/loss': loss.item()}
visualizer.set_current_errors(errors)
if iters % opt.print_freq == 0:
visualizer.print_current_errors(epoch, iters)
state = {
'enhance_state_dict': enhance_model.state_dict(),
'opt': opt,
'epoch': epoch,
'iters': iters,
'eps': eps,
'lr': lr,
'best_loss': best_loss,
'loss_report': loss_report
}
filename = 'latest'
utils.save_checkpoint(state, opt.exp_path, filename=filename)
if iters % opt.validate_freq == 0:
enhance_model.eval()
torch.set_grad_enabled(False)
num_saved_specgram = 0
for i, (data) in tqdm(enumerate(val_loader, start=0)):
utt_ids, spk_ids, clean_inputs, clean_log_inputs, mix_inputs, mix_log_inputs, cos_angles, targets, input_sizes, target_sizes = data
loss, enhance_out = enhance_model(clean_inputs, mix_inputs,
mix_log_inputs,
cos_angles, input_sizes)
errors = {'val/loss': loss.item()}
visualizer.set_current_errors(errors)
if opt.num_saved_specgram > 0:
if num_saved_specgram < opt.num_saved_specgram:
enhanced_outs = enhance_model.calculate_all_specgram(
mix_inputs, mix_log_inputs, input_sizes)
for x in range(len(utt_ids)):
enhanced_out = enhanced_outs[x].data.cpu(
).numpy()
enhanced_out[enhanced_out <= 1e-7] = 1e-7
enhanced_out = np.log10(enhanced_out)
clean_input = clean_inputs[x].data.cpu().numpy(
)
clean_input[clean_input <= 1e-7] = 1e-7
clean_input = np.log10(clean_input)
mix_input = mix_inputs[x].data.cpu().numpy()
mix_input[mix_input <= 1e-7] = 1e-7
mix_input = np.log10(mix_input)
utt_id = utt_ids[x]
file_name = "{}_ep{}_it{}.png".format(
utt_id, epoch, iters)
input_size = int(input_sizes[x])
visualizer.plot_specgram(
clean_input, mix_input, enhanced_out,
input_size, file_name)
num_saved_specgram += 1
if num_saved_specgram >= opt.num_saved_specgram:
break
enhance_model.train()
torch.set_grad_enabled(True)
visualizer.print_epoch_errors(epoch, iters)
loss_report = visualizer.plot_epoch_errors(
epoch, iters, 'loss.png')
train_loss = visualizer.get_current_errors('train/loss')
val_loss = visualizer.get_current_errors('val/loss')
filename = None
if val_loss > best_loss:
print('val_loss {} > best_loss {}'.format(
val_loss, best_loss))
eps = utils.adadelta_eps_decay(optimizer, opt.eps_decay)
else:
filename = 'model.loss.best'
best_loss = min(val_loss, best_loss)
print('best_loss {}'.format(best_loss))
state = {
'enhance_state_dict': enhance_model.state_dict(),
'opt': opt,
'epoch': epoch,
'iters': iters,
'eps': eps,
'lr': lr,
'best_loss': best_loss,
'loss_report': loss_report
}
##filename='epoch-{}_iters-{}_loss-{:.6f}-{:.6f}.pth'.format(epoch, iters, train_loss, val_loss)
utils.save_checkpoint(state, opt.exp_path, filename=filename)
visualizer.reset()
def main():
opt = TrainOptions().parse()
device = torch.device("cuda:{}".format(opt.gpu_ids[0]) if len(opt.gpu_ids) > 0 and torch.cuda.is_available() else "cpu")
visualizer = Visualizer(opt)
logging = visualizer.get_logger()
acc_report = visualizer.add_plot_report(['train/acc', 'val/acc'], 'acc.png')
loss_report = visualizer.add_plot_report(['train/loss', 'val/loss', 'train/enhance_loss', 'val/enhance_loss'], 'loss.png')
# data
logging.info("Building dataset.")
train_dataset = MixSequentialDataset(opt, os.path.join(opt.dataroot, 'train'), os.path.join(opt.dict_dir, 'train_units.txt'),)
val_dataset = MixSequentialDataset(opt, os.path.join(opt.dataroot, 'dev'), os.path.join(opt.dict_dir, 'train_units.txt'),)
train_sampler = BucketingSampler(train_dataset, batch_size=opt.batch_size)
train_loader = MixSequentialDataLoader(train_dataset, num_workers=opt.num_workers, batch_sampler=train_sampler)
val_loader = MixSequentialDataLoader(val_dataset, batch_size=int(opt.batch_size/2), num_workers=opt.num_workers, shuffle=False)
opt.idim = train_dataset.get_feat_size()
opt.odim = train_dataset.get_num_classes()
opt.char_list = train_dataset.get_char_list()
opt.train_dataset_len = len(train_dataset)
logging.info('#input dims : ' + str(opt.idim))
logging.info('#output dims: ' + str(opt.odim))
logging.info("Dataset ready!")
# Setup an model
lr = opt.lr
eps = opt.eps
iters = opt.iters
best_acc = opt.best_acc
best_loss = opt.best_loss
start_epoch = opt.start_epoch
enhance_model_path = None
if opt.enhance_resume:
enhance_model_path = os.path.join(opt.works_dir, opt.enhance_resume)
if os.path.isfile(enhance_model_path):
enhance_model = EnhanceModel.load_model(enhance_model_path, 'enhance_state_dict', opt)
else:
print("no checkpoint found at {}".format(enhance_model_path))
asr_model_path = None
if opt.asr_resume:
asr_model_path = os.path.join(opt.works_dir, opt.asr_resume)
if os.path.isfile(asr_model_path):
asr_model = ShareE2E.load_model(asr_model_path, 'asr_state_dict', opt)
else:
print("no checkpoint found at {}".format(asr_model_path))
joint_model_path = None
if opt.joint_resume:
joint_model_path = os.path.join(opt.works_dir, opt.joint_resume)
if os.path.isfile(joint_model_path):
package = torch.load(joint_model_path, map_location=lambda storage, loc: storage)
lr = package.get('lr', opt.lr)
eps = package.get('eps', opt.eps)
best_acc = package.get('best_acc', 0)
best_loss = package.get('best_loss', float('inf'))
start_epoch = int(package.get('epoch', 0))
iters = int(package.get('iters', 0)) - 1
print('joint_model_path {} and iters {}'.format(joint_model_path, iters))
##loss_report = package.get('loss_report', loss_report)
##visualizer.set_plot_report(loss_report, 'loss.png')
else:
print("no checkpoint found at {}".format(joint_model_path))
if joint_model_path is not None or enhance_model_path is None:
enhance_model = EnhanceModel.load_model(joint_model_path, 'enhance_state_dict', opt)
if joint_model_path is not None or asr_model_path is None:
asr_model = ShareE2E.load_model(joint_model_path, 'asr_state_dict', opt)
feat_model = FbankModel.load_model(joint_model_path, 'fbank_state_dict', opt)
if opt.isGAN:
gan_model = GANModel.load_model(joint_model_path, 'gan_state_dict', opt)
##set_requires_grad([enhance_model], False)
# Setup an optimizer
enhance_parameters = filter(lambda p: p.requires_grad, enhance_model.parameters())
asr_parameters = filter(lambda p: p.requires_grad, asr_model.parameters())
if opt.isGAN:
gan_parameters = filter(lambda p: p.requires_grad, gan_model.parameters())
if opt.opt_type == 'adadelta':
enhance_optimizer = torch.optim.Adadelta(enhance_parameters, rho=0.95, eps=eps)
asr_optimizer = torch.optim.Adadelta(asr_parameters, rho=0.95, eps=eps)
if opt.isGAN:
gan_optimizer = torch.optim.Adadelta(gan_parameters, rho=0.95, eps=eps)
elif opt.opt_type == 'adam':
enhance_optimizer = torch.optim.Adam(enhance_parameters, lr=lr, betas=(opt.beta1, 0.999))
asr_optimizer = torch.optim.Adam(asr_parameters, lr=lr, betas=(opt.beta1, 0.999))
if opt.isGAN:
gan_optimizer = torch.optim.Adam(gan_parameters, lr=lr, betas=(opt.beta1, 0.999))
if opt.isGAN:
criterionGAN = GANLoss(use_lsgan=not opt.no_lsgan).to(device)
# Training
enhance_cmvn = compute_cmvn_epoch(opt, train_loader, enhance_model, feat_model)
sample_rampup = utils.ScheSampleRampup(opt.sche_samp_start_iter, opt.sche_samp_final_iter, opt.sche_samp_final_rate)
sche_samp_rate = sample_rampup.update(iters)
enhance_model.train()
feat_model.train()
asr_model.train()
for epoch in range(start_epoch, opt.epochs):
if epoch > opt.shuffle_epoch:
print("Shuffling batches for the following epochs")
train_sampler.shuffle(epoch)
for i, (data) in enumerate(train_loader, start=0):
utt_ids, spk_ids, clean_inputs, clean_log_inputs, mix_inputs, mix_log_inputs, cos_angles, targets, input_sizes, target_sizes = data
enhance_out = enhance_model(mix_inputs, mix_log_inputs, input_sizes)
enhance_feat = feat_model(enhance_out)
clean_feat = feat_model(clean_inputs)
mix_feat = feat_model(mix_inputs)
if opt.enhance_loss_type == 'L2':
enhance_loss = F.mse_loss(enhance_feat, clean_feat.detach())
elif opt.enhance_loss_type == 'L1':
enhance_loss = F.l1_loss(enhance_feat, clean_feat.detach())
elif opt.enhance_loss_type == 'smooth_L1':
enhance_loss = F.smooth_l1_loss(enhance_feat, clean_feat.detach())
enhance_loss = opt.enhance_loss_lambda * enhance_loss
loss_ctc, loss_att, acc, clean_context, mix_context = asr_model(clean_feat, enhance_feat, targets, input_sizes, target_sizes, sche_samp_rate, enhance_cmvn)
coral_loss = opt.coral_loss_lambda * CORAL(clean_context, mix_context)
asr_loss = opt.mtlalpha * loss_ctc + (1 - opt.mtlalpha) * loss_att
loss = asr_loss + enhance_loss + coral_loss
if opt.isGAN:
set_requires_grad([gan_model], False)
if opt.netD_type == 'pixel':
fake_AB = torch.cat((mix_feat, enhance_feat), 2)
else:
fake_AB = enhance_feat
gan_loss = opt.gan_loss_lambda * criterionGAN(gan_model(fake_AB, enhance_cmvn), True)
loss += gan_loss
enhance_optimizer.zero_grad()
asr_optimizer.zero_grad() # Clear the parameter gradients
loss.backward()
# compute the gradient norm to check if it is normal or not
grad_norm = torch.nn.utils.clip_grad_norm_(asr_model.parameters(), opt.grad_clip)
if math.isnan(grad_norm):
logging.warning('grad norm is nan. Do not update model.')
else:
enhance_optimizer.step()
asr_optimizer.step()
if opt.isGAN:
set_requires_grad([gan_model], True)
gan_optimizer.zero_grad()
if opt.netD_type == 'pixel':
fake_AB = torch.cat((mix_feat, enhance_feat), 2)
real_AB = torch.cat((mix_feat, clean_feat), 2)
else:
fake_AB = enhance_feat
real_AB = clean_feat
loss_D_real = criterionGAN(gan_model(real_AB.detach(), enhance_cmvn), True)
loss_D_fake = criterionGAN(gan_model(fake_AB.detach(), enhance_cmvn), False)
loss_D = (loss_D_real + loss_D_fake) * 0.5
loss_D.backward()
grad_norm = torch.nn.utils.clip_grad_norm_(gan_model.parameters(), opt.grad_clip)
if math.isnan(grad_norm):
logging.warning('grad norm is nan. Do not update model.')
else:
gan_optimizer.step()
iters += 1
errors = {'train/loss': loss.item(), 'train/loss_ctc': loss_ctc.item(),
'train/acc': acc, 'train/loss_att': loss_att.item(),
'train/enhance_loss': enhance_loss.item(), 'train/coral_loss': coral_loss.item()}
if opt.isGAN:
errors['train/loss_D'] = loss_D.item()
errors['train/gan_loss'] = opt.gan_loss_lambda * gan_loss.item()
visualizer.set_current_errors(errors)
if iters % opt.print_freq == 0:
visualizer.print_current_errors(epoch, iters)
state = {'asr_state_dict': asr_model.state_dict(),
'fbank_state_dict': feat_model.state_dict(),
'enhance_state_dict': enhance_model.state_dict(),
'opt': opt, 'epoch': epoch, 'iters': iters,
'eps': opt.eps, 'lr': opt.lr,
'best_loss': best_loss, 'best_acc': best_acc,
'acc_report': acc_report, 'loss_report': loss_report}
if opt.isGAN:
state['gan_state_dict'] = gan_model.state_dict()
filename='latest'
utils.save_checkpoint(state, opt.exp_path, filename=filename)
if iters % opt.validate_freq == 0:
sche_samp_rate = sample_rampup.update(iters)
print("iters {} sche_samp_rate {}".format(iters, sche_samp_rate))
enhance_model.eval()
feat_model.eval()
asr_model.eval()
torch.set_grad_enabled(False)
num_saved_attention = 0
for i, (data) in tqdm(enumerate(val_loader, start=0)):
utt_ids, spk_ids, clean_inputs, clean_log_inputs, mix_inputs, mix_log_inputs, cos_angles, targets, input_sizes, target_sizes = data
enhance_out = enhance_model(mix_inputs, mix_log_inputs, input_sizes)
enhance_feat = feat_model(enhance_out)
clean_feat = feat_model(clean_inputs)
mix_feat = feat_model(mix_inputs)
if opt.enhance_loss_type == 'L2':
enhance_loss = F.mse_loss(enhance_feat, clean_feat.detach())
elif opt.enhance_loss_type == 'L1':
enhance_loss = F.l1_loss(enhance_feat, clean_feat.detach())
elif opt.enhance_loss_type == 'smooth_L1':
enhance_loss = F.smooth_l1_loss(enhance_feat, clean_feat.detach())
if opt.isGAN:
set_requires_grad([gan_model], False)
if opt.netD_type == 'pixel':
fake_AB = torch.cat((mix_feat, enhance_feat), 2)
else:
fake_AB = enhance_feat
gan_loss = criterionGAN(gan_model(fake_AB, enhance_cmvn), True)
enhance_loss += opt.gan_loss_lambda * gan_loss
loss_ctc, loss_att, acc, clean_context, mix_context = asr_model(clean_feat, enhance_feat, targets, input_sizes, target_sizes, 0.0, enhance_cmvn)
asr_loss = opt.mtlalpha * loss_ctc + (1 - opt.mtlalpha) * loss_att
enhance_loss = opt.enhance_loss_lambda * enhance_loss
loss = asr_loss + enhance_loss
errors = {'val/loss': loss.item(), 'val/loss_ctc': loss_ctc.item(),
'val/acc': acc, 'val/loss_att': loss_att.item(),
'val/enhance_loss': enhance_loss.item()}
if opt.isGAN:
errors['val/gan_loss'] = opt.gan_loss_lambda * gan_loss.item()
visualizer.set_current_errors(errors)
if opt.num_save_attention > 0 and opt.mtlalpha != 1.0:
if num_saved_attention < opt.num_save_attention:
att_ws = asr_model.calculate_all_attentions(enhance_feat, targets, input_sizes, target_sizes, enhance_cmvn)
for x in range(len(utt_ids)):
att_w = att_ws[x]
utt_id = utt_ids[x]
file_name = "{}_ep{}_it{}.png".format(utt_id, epoch, iters)
dec_len = int(target_sizes[x])
enc_len = int(input_sizes[x])
visualizer.plot_attention(att_w, dec_len, enc_len, file_name)
num_saved_attention += 1
if num_saved_attention >= opt.num_save_attention:
break
enhance_model.train()
feat_model.train()
asr_model.train()
torch.set_grad_enabled(True)
visualizer.print_epoch_errors(epoch, iters)
acc_report = visualizer.plot_epoch_errors(epoch, iters, 'acc.png')
loss_report = visualizer.plot_epoch_errors(epoch, iters, 'loss.png')
val_loss = visualizer.get_current_errors('val/loss')
val_acc = visualizer.get_current_errors('val/acc')
filename = None
if opt.criterion == 'acc' and opt.mtl_mode is not 'ctc':
if val_acc < best_acc:
logging.info('val_acc {} > best_acc {}'.format(val_acc, best_acc))
opt.eps = utils.adadelta_eps_decay(asr_optimizer, opt.eps_decay)
else:
filename='model.acc.best'
best_acc = max(best_acc, val_acc)
logging.info('best_acc {}'.format(best_acc))
elif args.criterion == 'loss':
if val_loss > best_loss:
logging.info('val_loss {} > best_loss {}'.format(val_loss, best_loss))
opt.eps = utils.adadelta_eps_decay(asr_optimizer, opt.eps_decay)
else:
filename='model.loss.best'
best_loss = min(val_loss, best_loss)
logging.info('best_loss {}'.format(best_loss))
state = {'asr_state_dict': asr_model.state_dict(),
'fbank_state_dict': feat_model.state_dict(),
'enhance_state_dict': enhance_model.state_dict(),
'opt': opt, 'epoch': epoch, 'iters': iters,
'eps': opt.eps, 'lr': opt.lr,
'best_loss': best_loss, 'best_acc': best_acc,
'acc_report': acc_report, 'loss_report': loss_report}
if opt.isGAN:
state['gan_state_dict'] = gan_model.state_dict()
utils.save_checkpoint(state, opt.exp_path, filename=filename)
visualizer.reset()
enhance_cmvn = compute_cmvn_epoch(opt, train_loader, enhance_model, feat_model)
def main():
opt = TrainOptions().parse()
device = torch.device("cuda:{}".format(opt.gpu_ids[0]) if len(opt.gpu_ids) > 0 and torch.cuda.is_available() else "cpu")
visualizer = Visualizer(opt)
logging = visualizer.get_logger()
acc_report = visualizer.add_plot_report(['train/acc', 'val/acc'], 'acc.png')
loss_report = visualizer.add_plot_report(['train/loss', 'val/loss'], 'loss.png')
# data
logging.info("Building dataset.")
# train目录 和 dict目录，作为输入
train_dataset = SequentialDataset(opt, os.path.join(opt.dataroot, 'train'), os.path.join(opt.dict_dir, 'train_units.txt'),)
val_dataset = SequentialDataset(opt, os.path.join(opt.dataroot, 'dev'), os.path.join(opt.dict_dir, 'train_units.txt'),)
train_sampler = BucketingSampler(train_dataset, batch_size=opt.batch_size)
train_loader = SequentialDataLoader(train_dataset, num_workers=opt.num_workers, batch_sampler=train_sampler)
val_loader = SequentialDataLoader(val_dataset, batch_size=int(opt.batch_size/2), num_workers=opt.num_workers, shuffle=False)
opt.idim = train_dataset.get_feat_size()
opt.odim = train_dataset.get_num_classes()
opt.char_list = train_dataset.get_char_list()
opt.train_dataset_len = len(train_dataset)
logging.info('#input dims : ' + str(opt.idim))
logging.info('#output dims: ' + str(opt.odim))
logging.info("Dataset ready!")
# Setup a model
asr_model = E2E(opt)
##fbank_model = FbankModel(opt)
lr = opt.lr # default=0.005
eps = opt.eps # default=1e-8
iters = opt.iters # default=0
start_epoch = opt.start_epoch # default=0
best_loss = opt.best_loss # default=float('inf')
best_acc = opt.best_acc # default=0
if opt.resume:
# 如果有中继点
model_path = os.path.join(opt.works_dir, opt.resume)
if os.path.isfile(model_path):
package = torch.load(model_path, map_location=lambda storage, loc: storage)
lr = package.get('lr', opt.lr)
eps = package.get('eps', opt.eps)
best_loss = package.get('best_loss', float('inf'))
best_acc = package.get('best_acc', 0)
start_epoch = int(package.get('epoch', 0))
iters = int(package.get('iters', 0))
acc_report = package.get('acc_report', acc_report)
loss_report = package.get('loss_report', loss_report)
visualizer.set_plot_report(acc_report, 'acc.png')
visualizer.set_plot_report(loss_report, 'loss.png')
asr_model = E2E.load_model(model_path, 'asr_state_dict')
##fbank_model = FbankModel.load_model(model_path, 'fbank_state_dict')
logging.info('Loading model {} and iters {}'.format(model_path, iters))
else:
print("no checkpoint found at {}".format(model_path))
# convert to cuda
asr_model.cuda()
##fbank_model.cuda()
print(asr_model)
# Setup an optimizer
#parameters = filter(lambda p: p.requires_grad, itertools.chain(asr_model.parameters(), fbank_model.parameters()))
parameters = filter(lambda p: p.requires_grad, itertools.chain(asr_model.parameters())) # ?
if opt.opt_type == 'adadelta':
optimizer = torch.optim.Adadelta(parameters, rho=0.95, eps=eps)
elif opt.opt_type == 'adam':
optimizer = torch.optim.Adam(parameters, lr=lr, betas=(opt.beta1, 0.999))
asr_model.train()
#fbank_model.train()
sample_rampup = utils.ScheSampleRampup(opt.sche_samp_start_iter, opt.sche_samp_final_iter, opt.sche_samp_final_rate)
sche_samp_rate = sample_rampup.update(iters)
'''fbank_cmvn_file = os.path.join(opt.exp_path, 'fbank_cmvn.npy')
if os.path.exists(fbank_cmvn_file):
fbank_cmvn = np.load(fbank_cmvn_file)
else:
for i, (data) in enumerate(train_loader, start=0):
utt_ids, spk_ids, inputs, log_inputs, targets, input_sizes, target_sizes = data
fbank_cmvn = fbank_model.compute_cmvn(inputs, input_sizes)
if fbank_cmvn is not None:
np.save(fbank_cmvn_file, fbank_cmvn)
print('save fbank_cmvn to {}'.format(fbank_cmvn_file))
break
fbank_cmvn = torch.FloatTensor(fbank_cmvn)'''
for epoch in range(start_epoch, opt.epochs):
if epoch > opt.shuffle_epoch:
print("Shuffling batches for the following epochs")
train_sampler.shuffle(epoch)
for i, (data) in enumerate(train_loader, start=(iters*opt.batch_size)%len(train_dataset)):
#utt_ids, spk_ids, inputs, log_inputs, targets, input_sizes, target_sizes = data
#fbank_features = fbank_model(inputs, fbank_cmvn)
utt_ids, spk_ids, fbank_features, targets, input_sizes, target_sizes = data
loss_ctc, loss_att, acc, context = asr_model(fbank_features, targets, input_sizes, target_sizes, sche_samp_rate)
loss = opt.mtlalpha * loss_ctc + (1 - opt.mtlalpha) * loss_att
optimizer.zero_grad() # Clear the parameter gradients
loss.backward() # compute backwards
# compute the gradient norm to check if it is normal or not 'fbank_state_dict': fbank_model.state_dict(),
grad_norm = torch.nn.utils.clip_grad_norm_(asr_model.parameters(), opt.grad_clip)
if math.isnan(grad_norm):
logging.warning('grad norm is nan. Do not update model.')
else:
optimizer.step()
iters += 1
errors = {'train/loss': loss.item(), 'train/loss_ctc': loss_ctc.item(),
'train/acc': acc, 'train/loss_att': loss_att.item()}
visualizer.set_current_errors(errors)
if iters % opt.print_freq == 0:
visualizer.print_current_errors(epoch, iters)
state = {'asr_state_dict': asr_model.state_dict(),
'opt': opt, 'epoch': epoch, 'iters': iters,
'eps': opt.eps, 'lr': opt.lr,
'best_loss': best_loss, 'best_acc': best_acc,
'acc_report': acc_report, 'loss_report': loss_report}
filename='latest'
utils.save_checkpoint(state, opt.exp_path, filename=filename)
if iters % opt.validate_freq == 0:
sche_samp_rate = sample_rampup.update(iters)
print("iters {} sche_samp_rate {}".format(iters, sche_samp_rate))
asr_model.eval()
#fbank_model.eval()
torch.set_grad_enabled(False)
num_saved_attention = 0
for i, (data) in tqdm(enumerate(val_loader, start=0)):
#utt_ids, spk_ids, inputs, log_inputs, targets, input_sizes, target_sizes = data
#fbank_features = fbank_model(inputs, fbank_cmvn)
utt_ids, spk_ids, fbank_features, targets, input_sizes, target_sizes = data
loss_ctc, loss_att, acc, context = asr_model(fbank_features, targets, input_sizes, target_sizes, 0.0)
loss = opt.mtlalpha * loss_ctc + (1 - opt.mtlalpha) * loss_att
errors = {'val/loss': loss.item(), 'val/loss_ctc': loss_ctc.item(),
'val/acc': acc, 'val/loss_att': loss_att.item()}
visualizer.set_current_errors(errors)
if opt.num_save_attention > 0 and opt.mtlalpha != 1.0:
if num_saved_attention < opt.num_save_attention:
att_ws = asr_model.calculate_all_attentions(fbank_features, targets, input_sizes, target_sizes)
for x in range(len(utt_ids)):
att_w = att_ws[x]
utt_id = utt_ids[x]
file_name = "{}_ep{}_it{}.png".format(utt_id, epoch, iters)
dec_len = int(target_sizes[x])
enc_len = int(input_sizes[x])
visualizer.plot_attention(att_w, dec_len, enc_len, file_name)
num_saved_attention += 1
if num_saved_attention >= opt.num_save_attention:
break
asr_model.train()
#fbank_model.train()
torch.set_grad_enabled(True)
visualizer.print_epoch_errors(epoch, iters)
acc_report = visualizer.plot_epoch_errors(epoch, iters, 'acc.png')
loss_report = visualizer.plot_epoch_errors(epoch, iters, 'loss.png')
val_loss = visualizer.get_current_errors('val/loss')
val_acc = visualizer.get_current_errors('val/acc')
filename = None
if opt.criterion == 'acc' and opt.mtl_mode is not 'ctc':
if val_acc < best_acc:
logging.info('val_acc {} > best_acc {}'.format(val_acc, best_acc))
opt.eps = utils.adadelta_eps_decay(optimizer, opt.eps_decay)
else:
filename='model.acc.best'
best_acc = max(best_acc, val_acc)
logging.info('best_acc {}'.format(best_acc))
elif args.criterion == 'loss':
if val_loss > best_loss:
logging.info('val_loss {} > best_loss {}'.format(val_loss, best_loss))
opt.eps = utils.adadelta_eps_decay(optimizer, opt.eps_decay)
else:
filename='model.loss.best'
best_loss = min(val_loss, best_loss)
logging.info('best_loss {}'.format(best_loss))
state = {'asr_state_dict': asr_model.state_dict(),
'opt': opt, 'epoch': epoch, 'iters': iters,
'eps': opt.eps, 'lr': opt.lr,
'best_loss': best_loss, 'best_acc': best_acc,
'acc_report': acc_report, 'loss_report': loss_report}
utils.save_checkpoint(state, opt.exp_path, filename=filename)
##filename='epoch-{}_iters-{}_loss-{:.4f}_acc-{:.4f}.pth'.format(epoch, iters, val_loss, val_acc)
##utils.save_checkpoint(state, opt.exp_path, filename=filename)
visualizer.reset()
def main():
opt = fake_opt.Enhance_gan_train()
device = torch.device("cuda:{}".format(opt.gpu_ids[0]) if len(opt.gpu_ids)
> 0 and torch.cuda.is_available() else "cpu")
visualizer = Visualizer(opt)
logging = visualizer.get_logger()
loss_report = visualizer.add_plot_report([
'train/loss', 'val/loss', 'train/gan_loss', 'train/enhance_loss',
'train/loss_D'
], 'loss.png')
# data
logging.info("Building dataset.")
'''
train_dataset = MixSequentialDataset(opt, os.path.join(opt.dataroot, 'train'), os.path.join(opt.dict_dir, 'train_units.txt'),)
val_dataset = MixSequentialDataset(opt, os.path.join(opt.dataroot, 'dev'), os.path.join(opt.dict_dir, 'train_units.txt'),)
train_sampler = BucketingSampler(train_dataset, batch_size=opt.batch_size)
train_loader = MixSequentialDataLoader(train_dataset, num_workers=opt.num_workers, batch_sampler=train_sampler)
val_loader = MixSequentialDataLoader(val_dataset, batch_size=int(opt.batch_size/2), num_workers=opt.num_workers, shuffle=False)
opt.idim = train_dataset.get_feat_size()
opt.odim = train_dataset.get_num_classes()
opt.char_list = train_dataset.get_char_list()
opt.train_dataset_len = len(train_dataset)
logging.info('#input dims : ' + str(opt.idim))
logging.info('#output dims: ' + str(opt.odim))
logging.info("Dataset ready!")'''
train_dataset = MixSequentialDataset(
opt,
os.path.join(opt.dataroot, 'train'),
os.path.join(opt.dict_dir, 'train/vocab'),
)
val_dataset = MixSequentialDataset(
opt,
os.path.join(opt.dataroot, 'dev'),
os.path.join(opt.dict_dir, 'train/vocab'),
)
train_sampler = BucketingSampler(train_dataset, batch_size=opt.batch_size)
train_loader = MixSequentialDataLoader(train_dataset,
num_workers=opt.num_workers,
batch_sampler=train_sampler)
val_loader = MixSequentialDataLoader(val_dataset,
batch_size=int(opt.batch_size / 2),
num_workers=opt.num_workers,
shuffle=False)
opt.idim = train_dataset.get_feat_size()
opt.odim = train_dataset.get_num_classes()
opt.char_list = train_dataset.get_char_list()
opt.train_dataset_len = len(train_dataset)
logging.info('#input dims : ' + str(opt.idim))
logging.info('#output dims: ' + str(opt.odim))
logging.info("Dataset ready!")
# Setup an model
lr = opt.lr
eps = opt.eps
iters = opt.iters
best_loss = opt.best_loss
start_epoch = opt.start_epoch
model_path = None
if opt.enhance_resume:
model_path = os.path.join(opt.works_dir, opt.enhance_resume)
if os.path.isfile(model_path):
package = torch.load(model_path,
map_location=lambda storage, loc: storage)
lr = package.get('lr', opt.lr)
eps = package.get('eps', opt.eps)
best_loss = package.get('best_loss', float('inf'))
start_epoch = int(package.get('epoch', 0))
iters = int(package.get('iters', 0))
loss_report = package.get('loss_report', loss_report)
visualizer.set_plot_report(loss_report, 'loss.png')
else:
print("no checkpoint found at {}".format(model_path))
enhance_model = EnhanceModel.load_model(model_path, 'enhance_state_dict',
opt)
gan_model = GANModel.load_model(model_path, 'gan_state_dict', opt)
print(gan_model)
if opt.enhance_opt_type == 'gan_fft':
feat_model = FFTModel.load_model(model_path, 'fft_state_dict', opt)
elif opt.enhance_opt_type == 'gan_fbank':
feat_model = FbankModel.load_model(model_path, 'fbank_state_dict', opt)
else:
raise NotImplementedError('enhance_opt_type [%s] is not recognized' %
enhance_opt_type)
# Setup an optimizer
enhance_parameters = filter(
lambda p: p.requires_grad,
itertools.chain(enhance_model.parameters(), feat_model.parameters()))
gan_parameters = filter(lambda p: p.requires_grad, gan_model.parameters())
if opt.opt_type == 'adadelta':
enhance_optimizer = torch.optim.Adadelta(enhance_parameters,
rho=0.95,
eps=eps)
gan_optimizer = torch.optim.Adadelta(gan_parameters, rho=0.95, eps=eps)
elif opt.opt_type == 'adam':
enhance_optimizer = torch.optim.Adam(enhance_parameters,
lr=lr,
betas=(opt.beta1, 0.999))
gan_optimizer = torch.optim.Adam(gan_parameters,
lr=lr,
betas=(opt.beta1, 0.999))
criterionGAN = GANLoss(use_lsgan=not opt.no_lsgan).to(device)
# Training
enhance_cmvn_path = '/usr/home/wudamu/Documents/Robust_e2e_gan-master/checkpoints/enhance_gan_train_change_param/enhance_cmvn.npy'
if enhance_cmvn_path:
enhance_cmvn = np.load(enhance_cmvn_path)
enhance_cmvn = torch.FloatTensor(enhance_cmvn)
else:
enhance_cmvn = compute_cmvn_epoch(opt, train_loader, enhance_model,
feat_model)
#enhance_cmvn = compute_cmvn_epoch(opt, train_loader, enhance_model, feat_model)
enhance_model.train()
feat_model.train()
gan_model.train()
for epoch in range(start_epoch, opt.epochs):
if epoch > opt.shuffle_epoch:
print("Shuffling batches for the following epochs")
train_sampler.shuffle(epoch)
for i, (data) in enumerate(train_loader,
start=(iters % len(train_dataset))):
utt_ids, spk_ids, clean_inputs, clean_log_inputs, mix_inputs, mix_log_inputs, cos_angles, targets, input_sizes, target_sizes = data
enhance_loss, enhance_out = enhance_model(
clean_inputs=clean_inputs,
mix_inputs=mix_inputs,
mix_log_inputs=mix_log_inputs,
cos_angles=cos_angles,
input_sizes=input_sizes)
enhance_feat = feat_model(enhance_out, enhance_cmvn)
clean_feat = feat_model(clean_inputs, enhance_cmvn)
set_requires_grad([gan_model], False)
gan_loss = criterionGAN(gan_model(enhance_feat), True)
enhance_optimizer.zero_grad()
loss = enhance_loss + opt.gan_loss_lambda * gan_loss
loss.backward()
# compute the gradient norm to check if it is normal or not
grad_norm = torch.nn.utils.clip_grad_norm_(
enhance_model.parameters(), opt.grad_clip)
if math.isnan(grad_norm):
logging.warning('grad norm is nan. Do not update model.')
else:
enhance_optimizer.step()
set_requires_grad([gan_model], True)
gan_optimizer.zero_grad()
loss_D_real = criterionGAN(gan_model(clean_feat.detach()), True)
loss_D_fake = criterionGAN(gan_model(enhance_feat.detach()), False)
loss_D = (loss_D_real + loss_D_fake) * 0.5
loss_D.backward()
grad_norm = torch.nn.utils.clip_grad_norm_(gan_model.parameters(),
opt.grad_clip)
if math.isnan(grad_norm):
logging.warning('grad norm is nan. Do not update model.')
else:
gan_optimizer.step()
iters += 1
errors = {
'train/loss': loss.item(),
'train/gan_loss': gan_loss.item(),
'train/enhance_loss': enhance_loss.item(),
'train/loss_D': loss_D.item()
}
visualizer.set_current_errors(errors)
if iters % opt.print_freq == 0:
visualizer.print_current_errors(epoch, iters)
state = {
'enhance_state_dict': enhance_model.state_dict(),
'gan_state_dict': gan_model.state_dict(),
'opt': opt,
'epoch': epoch,
'iters': iters,
'eps': opt.eps,
'lr': opt.lr,
'best_loss': best_loss,
'loss_report': loss_report
}
if opt.enhance_opt_type == 'gan_fft':
state['fft_state_dict'] = feat_model.state_dict()
elif opt.enhance_opt_type == 'gan_fbank':
state['fbank_state_dict'] = feat_model.state_dict()
filename = 'latest'
utils.save_checkpoint(state, opt.exp_path, filename=filename)
if iters % opt.validate_freq == 0:
enhance_model.eval()
feat_model.eval()
gan_model.eval()
torch.set_grad_enabled(False)
num_saved_specgram = 0
for i, (data) in tqdm(enumerate(val_loader, start=0)):
utt_ids, spk_ids, clean_inputs, clean_log_inputs, mix_inputs, mix_log_inputs, cos_angles, targets, input_sizes, target_sizes = data
loss, enhance_out = enhance_model(
clean_inputs=clean_inputs,
mix_inputs=mix_inputs,
mix_log_inputs=mix_log_inputs,
cos_angles=cos_angles,
input_sizes=input_sizes)
errors = {'val/loss': loss.item()}
visualizer.set_current_errors(errors)
if opt.num_saved_specgram > 0:
if num_saved_specgram < opt.num_saved_specgram:
enhanced_outs = enhance_model.calculate_all_specgram(
mix_inputs, mix_log_inputs, input_sizes)
for x in range(len(utt_ids)):
enhanced_out = enhanced_outs[x].data.cpu(
).numpy()
enhanced_out[enhanced_out <= 1e-7] = 1e-7
enhanced_out = np.log10(enhanced_out)
clean_input = clean_inputs[x].data.cpu().numpy(
)
clean_input[clean_input <= 1e-7] = 1e-7
clean_input = np.log10(clean_input)
mix_input = mix_inputs[x].data.cpu().numpy()
mix_input[mix_input <= 1e-7] = 1e-7
mix_input = np.log10(mix_input)
utt_id = utt_ids[x]
file_name = "{}_ep{}_it{}.png".format(
utt_id, epoch, iters)
input_size = int(input_sizes[x])
visualizer.plot_specgram(
clean_input, mix_input, enhanced_out,
input_size, file_name)
num_saved_specgram += 1
if num_saved_specgram >= opt.num_saved_specgram:
break
enhance_model.train()
feat_model.train()
gan_model.train()
torch.set_grad_enabled(True)
visualizer.print_epoch_errors(epoch, iters)
loss_report = visualizer.plot_epoch_errors(
epoch, iters, 'loss.png')
train_loss = visualizer.get_current_errors('train/loss')
val_loss = visualizer.get_current_errors('val/loss')
filename = None
if val_loss > best_loss:
print('val_loss {} > best_loss {}'.format(
val_loss, best_loss))
opt.eps = utils.adadelta_eps_decay(enhance_optimizer,
opt.eps_decay)
else:
filename = 'model.loss.best'
best_loss = min(val_loss, best_loss)
print('best_loss {}'.format(best_loss))
state = {
'enhance_state_dict': enhance_model.state_dict(),
'gan_state_dict': gan_model.state_dict(),
'opt': opt,
'epoch': epoch,
'iters': iters,
'eps': opt.eps,
'lr': opt.lr,
'best_loss': best_loss,
'loss_report': loss_report
}
if opt.enhance_opt_type == 'gan_fft':
state['fft_state_dict'] = feat_model.state_dict()
elif opt.enhance_opt_type == 'gan_fbank':
state['fbank_state_dict'] = feat_model.state_dict()
##filename='epoch-{}_iters-{}_loss-{:.6f}-{:.6f}.pth'.format(epoch, iters, train_loss, val_loss)
utils.save_checkpoint(state, opt.exp_path, filename=filename)
visualizer.reset()
enhance_cmvn = compute_cmvn_epoch(opt, train_loader,
enhance_model, feat_model)