def main():
parser = argparse.ArgumentParser(
description='Running DeepSpeech inference.')
parser.add_argument('--model',
help='Path to the model (protocol buffer binary file)')
parser.add_argument(
'--alphabet',
help=
'Path to the configuration file specifying the alphabet used by the network'
)
parser.add_argument('--lm',
nargs='?',
help='Path to the language model binary file')
parser.add_argument(
'--trie',
nargs='?',
help=
'Path to the language model trie file created with native_client/generate_trie'
)
parser.add_argument('--audio',
help='Path to the audio file to run (WAV format)')
parser.add_argument('--version', help='Print version and exits')
args = parser.parse_args()
if args.version:
printVersions()
return 0
print('Loading model from file {}'.format(args.model), file=sys.stderr)
model_load_start = timer()
ds = Model(args.model, N_FEATURES, N_CONTEXT, args.alphabet, BEAM_WIDTH)
model_load_end = timer() - model_load_start
print('Loaded model in {:.3}s.'.format(model_load_end), file=sys.stderr)
if args.lm and args.trie:
print('Loading language model from files {} {}'.format(
args.lm, args.trie),
file=sys.stderr)
lm_load_start = timer()
ds.enableDecoderWithLM(args.alphabet, args.lm, args.trie, LM_WEIGHT,
VALID_WORD_COUNT_WEIGHT)
lm_load_end = timer() - lm_load_start
print('Loaded language model in {:.3}s.'.format(lm_load_end),
file=sys.stderr)
fin = wave.open(args.audio, 'rb')
fs = fin.getframerate()
if fs != 16000:
print(
'Warning: original sample rate ({}) is different than 16kHz. Resampling might produce erratic speech recognition.'
.format(fs),
file=sys.stderr)
fs, audio = convert_samplerate(args.audio)
else:
audio = np.frombuffer(fin.readframes(fin.getnframes()), np.int16)
audio_length = fin.getnframes() * (1 / 16000)
fin.close()
print('Running inference.', file=sys.stderr)
inference_start = timer()
print(ds.stt(audio, fs))
inference_end = timer() - inference_start
print('Inference took %0.3fs for %0.3fs audio file.' %
(inference_end, audio_length),
file=sys.stderr)
def __call__(self, *args, **kwargs):
printVersions()
exit(0)
def __call__(self, *args, **kwargs):
printVersions()
exit(0)
