def _get_distance(self, targets, y_hats):
"""
Provides total character distance between targets & y_hats
Args:
targets (torch.Tensor): set of ground truth
y_hats (torch.Tensor): predicted y values (y_hat) by the model
Returns: total_dist, total_length
- **total_dist**: total distance between targets & y_hats
- **total_length**: total length of targets sequence
"""
total_dist = 0
total_length = 0
for (target, y_hat) in zip(targets, y_hats):
s1 = label_to_string(target, self.id2char, self.eos_id)
s2 = label_to_string(y_hat, self.id2char, self.eos_id)
dist, length = self.calc_error_rate(s1, s2)
total_dist += dist
total_length += length
return total_dist, total_length
def search(self, model: nn.Module, queue: Queue, device: str, print_every: int) -> float:
cer = 0
total_sent_num = 0
timestep = 0
model.eval()
with torch.no_grad():
while True:
inputs, targets, input_lengths, target_lengths = queue.get()
if inputs.shape[0] == 0:
break
inputs = inputs.to(device)
targets = targets.to(device)
output = model(inputs, input_lengths, teacher_forcing_ratio=0.0, return_decode_dict=False)
logit = torch.stack(output, dim=1).to(device)
pred = logit.max(-1)[1]
for idx in range(targets.size(0)):
self.target_list.append(label_to_string(targets[idx], id2char, EOS_token))
self.predict_list.append(label_to_string(pred[idx].cpu().detach().numpy(), id2char, EOS_token))
cer = self.metric(targets[:, 1:], pred)
total_sent_num += targets.size(0)
if timestep % print_every == 0:
logger.info('cer: {:.2f}'.format(cer))
timestep += 1
return cer
def search(self, model, queue, device, print_every):
cer = 0
total_sent_num = 0
timestep = 0
model.eval()
with torch.no_grad():
while True:
inputs, scripts, input_lengths, target_lengths = queue.get()
if inputs.shape[0] == 0:
break
inputs = inputs.to(device)
scripts = scripts.to(device)
targets = scripts[:, 1:]
output, _ = model(inputs,
input_lengths,
teacher_forcing_ratio=0.0,
language_model=self.language_model)
logit = torch.stack(output, dim=1).to(device)
hypothesis = logit.max(-1)[1]
for idx in range(targets.size(0)):
self.target_list.append(
label_to_string(scripts[idx], id2char, EOS_token))
self.hypothesis_list.append(
label_to_string(hypothesis[idx].cpu().detach().numpy(),
id2char, EOS_token))
cer = self.metric(targets, hypothesis)
total_sent_num += scripts.size(0)
if timestep % print_every == 0:
logger.info('cer: {:.2f}'.format(cer))
timestep += 1
return cer
def index():
global show_graph
# If hit play button
if request.method == 'POST':
if os.path.isfile(AUDIO_TO_PLAY_PATH):
os.remove(AUDIO_TO_PLAY_PATH)
file = request.files['file']
uploaded_file_path = UPLOAD_FOLDER + file.filename
is_valid, extension = allowed_file(file.filename) # check condition
if is_valid:
filename = secure_filename(file.filename)
file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
# Convert format
if extension.lower() == 'pcm':
pcm2wav(uploaded_file_path, AUDIO_TO_PLAY_PATH)
elif extension.lower() == 'wav':
convert2pcm(uploaded_file_path, AUDIO_TO_PLAY_PATH)
# Extract feature & Inference by model
spectrogram = parse_audio('./uploaded_audio/%s' % filename)
output = model(spectrogram.unsqueeze(0), torch.IntTensor([len(spectrogram)]), teacher_forcing_ratio=0.0)[0]
logit = torch.stack(output, dim=1).to(DEVICE)
y_hat = logit.max(-1)[1]
prediction = str(label_to_string(y_hat, id2char, EOS_token)[0])
os.remove(uploaded_file_path)
return render_template('uploaded.html',
audio_path='.%s' % AUDIO_TO_PLAY_PATH,
prediction=prediction)
# Root page
return render_template('homepage.html')
def index():
global show_graph
# If hit play button
if request.method == 'POST':
if os.path.isfile(AUDIO_TO_PLAY_PATH):
os.remove(AUDIO_TO_PLAY_PATH)
file = request.files['file']
uploaded_file_path = UPLOAD_FOLDER + file.filename
is_valid, extension = allowed_file(file.filename) # check condition
if is_valid:
filename = secure_filename(file.filename)
file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
# Convert format
if extension.lower() == 'pcm':
pcm2wav(uploaded_file_path, AUDIO_TO_PLAY_PATH)
elif extension.lower() == 'wav':
convert2pcm(uploaded_file_path, AUDIO_TO_PLAY_PATH)
# Extract feature & Inference by model
spectrogram = parse_audio('./uploaded_audio/%s' % filename)
output = model(spectrogram.unsqueeze(0),
torch.IntTensor([len(spectrogram)]),
teacher_forcing_ratio=0.0)[0]
logit = torch.stack(output, dim=1).to(DEVICE)
y_hat = logit.max(-1)[1]
prediction = label_to_string(y_hat, id2char, EOS_token)
os.remove(uploaded_file_path)
# Determine destination device & command
order = milestone(prediction[0])
print(order)
if order is not None:
# Launch socket to light
if order[0] == str(LIGHT):
try: # If not connected
light_socket.connect(light_addr)
light_socket.send(order[1:].encode())
except: # If already connected
light_socket.send(order[1:].encode())
# Launch socket to airconditioner
elif order[0] == str(AIRCONDITIONER):
try: # If not connected
air_socket.connect(fine_dust_addr)
air_socket.send(order[3:].encode())
except: # If already connected
air_socket.send(order[3:].encode())
# Receive ack (acknowledge)
ack = air_socket.recv(65535).decode()
print(ack)
# Show graph
elif order[0] == str(GRAPH):
if order[3:] == str(SHOW):
show_graph = True
elif order[3:] == str(OFF):
show_graph = False
# Play page
if show_graph:
return render_template('display_graph.html',
audio_path='.%s' % AUDIO_TO_PLAY_PATH,
prediction=str(prediction[0]))
else:
return render_template('uploaded.html',
audio_path='.%s' % AUDIO_TO_PLAY_PATH,
prediction=str(prediction[0]))
# Root page
return render_template('homepage.html')
window_type='hamming').transpose(0, 1).numpy()
feature_vector -= feature_vector.mean()
feature_vector = Tensor(feature_vector).transpose(0, 1)
return feature_vector
parser = argparse.ArgumentParser(description='Run Pretrain')
parser.add_argument('--model_path', type=str, default='../pretrain/model.pt')
parser.add_argument('--audio_path',
type=str,
default='../pretrain/sample_audio.pcm')
parser.add_argument('--device', type=str, default='cuda')
opt = parser.parse_args()
feature_vector = parse_audio(opt.audio_path, del_silence=True)
input_length = torch.IntTensor([len(feature_vector)])
model = load_test_model(opt, opt.device)
model.eval()
output = model(inputs=feature_vector.unsqueeze(0),
input_lengths=input_length,
teacher_forcing_ratio=0.0,
return_decode_dict=False)
logit = torch.stack(output, dim=1).to(opt.device)
pred = logit.max(-1)[1]
sentence = label_to_string(pred.cpu().detach().numpy(), id2char, EOS_token)
print(sentence)