eval.py

import argparse
import os
import re
from hparams import hparams, hparams_debug_string
from synthesizer import Synthesizer
from util import plot


sentences = [
    # From July 8, 2017 New York Times:
    'Scientists at the CERN laboratory say they have discovered a new particle.',
    'There’s a way to measure the acute emotional intelligence that has never gone out of style.',
    'President Trump met with other leaders at the Group of 20 conference.',
    'The Senate\'s bill to repeal and replace the Affordable Care Act is now imperiled.',
    # From Google's Tacotron example page:
    'Generative adversarial network or variational auto-encoder.',
    'The buses aren\'t the problem, they actually provide a solution.',
    'Does the quick brown fox jump over the lazy dog?',
    'Talib Kweli confirmed to AllHipHop that he will be releasing an album in the next year.',
    # From mycroft
    "It took me quite a long time to develop a voice, and now that I have it I'm not going to be silent.",
    "As commander-in-chief of the Continental Army during the American Revolutionary War, he was the principal force in the surrender of the British at Yorktown",
    "Be a voice, not an echo.",
    "The human voice is the most perfect instrument of all.",
    "I'm sorry Dave, I'm afraid I can't do that.",
    "This cake is great, It's so delicious and moist.",
    "hello, my name is mycroft.",
    "hi.",
    "wow.",
    "cool.",
    "great.",
]


def get_output_base_path(checkpoint_path):
  base_dir = os.path.dirname(checkpoint_path)
  m = re.compile(r'.*?\.ckpt\-([0-9]+)').match(checkpoint_path)
  name = 'eval-%d' % int(m.group(1)) if m else 'eval'
  return os.path.join(base_dir, name)


def run_eval(args):
  print(hparams_debug_string())
  synth = Synthesizer()
  synth.load(args.checkpoint)
  base_path = get_output_base_path(args.checkpoint)
  for i, text in enumerate(sentences):
    wav_path = '%s-%d.wav' % (base_path, i)
    align_path = '%s-%d.png' % (base_path, i)
    print('Synthesizing and plotting: %s' % wav_path)
    wav, alignment = synth.synthesize(text)
    with open(wav_path, 'wb') as f:
      f.write(wav)
    plot.plot_alignment(
        alignment, align_path,
        info='%s' % (text)
    )


def main():
  parser = argparse.ArgumentParser()
  parser.add_argument(
      '--checkpoint', required=True,
      help='Path to model checkpoint')
  parser.add_argument(
      '--hparams', default='',
      help='Hyperparameter overrides as a comma-separated list of name=value pairs')
  parser.add_argument(
      '--force_cpu', default=False,
      help='Force synthesize with cpu')
  parser.add_argument(
      '--gpu_assignment', default='0',
      help='Set the gpu the model should run on')

  args = parser.parse_args()

  os.environ['CUDA_VISIBLE_DEVICES'] = args.gpu_assignment

  if args.force_cpu:
    os.environ['CUDA_VISIBLE_DEVICES'] = ''

  os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'
  hparams.parse(args.hparams)
  run_eval(args)


if __name__ == '__main__':
  main()