griffin_lim_synthesis_tool.ipynb

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     "text": [
      "/home/rayhane/anaconda3/lib/python3.6/site-packages/h5py/__init__.py:36: FutureWarning: Conversion of the second argument of issubdtype from `float` to `np.floating` is deprecated. In future, it will be treated as `np.float64 == np.dtype(float).type`.\n",
      "  from ._conv import register_converters as _register_converters\n"
     ]
    },
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     "data": {
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       "(636, 80)"
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     "execution_count": 1,
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   "source": [
    "import numpy as np\n",
    "from datasets.audio import *\n",
    "import os\n",
    "from hparams import hparams\n",
    "\n",
    "n_sample = 0 #Change n_steps here\n",
    "mel_folder = 'logs-Tacotron/mel-spectrograms' #Or change file path\n",
    "mel_file = 'mel-prediction-step-{}.npy'.format(n_sample) #Or file name (for other generated mels)\n",
    "out_dir = 'wav_out'\n",
    "\n",
    "os.makedirs(out_dir, exist_ok=True)\n",
    "\n",
    "#mel_file = os.path.join(mel_folder, mel_file)\n",
    "mel_file = 'training_data/mels/mel-LJ001-0005.npy'\n",
    "mel_spectro = np.load(mel_file)\n",
    "mel_spectro.shape"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "/home/rayhane/.local/lib/python3.6/site-packages/librosa/util/utils.py:1725: FutureWarning: Conversion of the second argument of issubdtype from `float` to `np.floating` is deprecated. In future, it will be treated as `np.float64 == np.dtype(float).type`.\n",
      "  if np.issubdtype(x.dtype, float) or np.issubdtype(x.dtype, complex):\n"
     ]
    }
   ],
   "source": [
    "wav = inv_mel_spectrogram(mel_spectro.T, hparams) \n",
    "#save the wav under test_<folder>_<file>\n",
    "save_wav(wav, os.path.join(out_dir, 'test_mel_{}.wav'.format(mel_file.replace('/', '_').replace('\\\\', '_').replace('.npy', ''))),\n",
    "        sr=hparams.sample_rate)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "from tacotron.utils.plot import *\n",
    "\n",
    "plot_spectrogram(mel_spectro, path=os.path.join(out_dir, 'test_mel_{}.png'.format(mel_file.replace('/', '_').replace('\\\\', '_').replace('.npy', ''))))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(636, 1025)"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "lin_file = 'training_data/linear/linear-LJ001-0005.npy'\n",
    "lin_spectro = np.load(lin_file)\n",
    "lin_spectro.shape"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "/home/rayhane/.local/lib/python3.6/site-packages/librosa/util/utils.py:1725: FutureWarning: Conversion of the second argument of issubdtype from `float` to `np.floating` is deprecated. In future, it will be treated as `np.float64 == np.dtype(float).type`.\n",
      "  if np.issubdtype(x.dtype, float) or np.issubdtype(x.dtype, complex):\n"
     ]
    }
   ],
   "source": [
    "wav = inv_linear_spectrogram(lin_spectro.T, hparams)\n",
    "save_wav(wav, os.path.join(out_dir, 'test_linear_{}.wav'.format(mel_file.replace('/', '_').replace('\\\\', '_').replace('.npy', ''))),\n",
    "        sr=hparams.sample_rate)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [],
   "source": [
    "plot_spectrogram(lin_spectro, path=os.path.join(out_dir, 'test_linear_{}.png'.format(mel_file.replace('/', '_').replace('\\\\', '_').replace('.npy', ''))),\n",
    "                auto_aspect=True)"
   ]
  }
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