kyutai/tts_pytorch.ipynb

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  {
   "cell_type": "code",
   "execution_count": null,
   "id": "0",
   "metadata": {},
   "outputs": [],
   "source": [
    "!pip install git+https://git@github.com/kyutai-labs/moshi#egg=moshi&subdirectory=moshi"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "1",
   "metadata": {},
   "outputs": [],
   "source": [
    "import argparse\n",
    "import sys\n",
    "\n",
    "import numpy as np\n",
    "import sphn\n",
    "import torch\n",
    "from moshi.models.loaders import CheckpointInfo\n",
    "from moshi.models.tts import DEFAULT_DSM_TTS_REPO, DEFAULT_DSM_TTS_VOICE_REPO, TTSModel\n",
    "\n",
    "from IPython.display import display, Audio"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "2",
   "metadata": {},
   "outputs": [],
   "source": [
    "# Configuration\n",
    "text = \"Hey there! How are you? I had the craziest day today.\"\n",
    "voice = \"expresso/ex03-ex01_happy_001_channel1_334s.wav\"\n",
    "print(f\"See https://huggingface.co/datasets/{DEFAULT_DSM_TTS_VOICE_REPO} for available voices.\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "3",
   "metadata": {},
   "outputs": [],
   "source": [
    "# Set everything up\n",
    "checkpoint_info = CheckpointInfo.from_hf_repo(DEFAULT_DSM_TTS_REPO)\n",
    "tts_model = TTSModel.from_checkpoint_info(\n",
    "    checkpoint_info, n_q=32, temp=0.6, device=torch.device(\"cuda\"), dtype=torch.half\n",
    ")\n",
    "\n",
    "# You could also generate multiple audios at once by passing a list of texts.\n",
    "entries = tts_model.prepare_script([text], padding_between=1)\n",
    "voice_path = tts_model.get_voice_path(voice)\n",
    "# CFG coef goes here because the model was trained with CFG distillation,\n",
    "# so it's not _actually_ doing CFG at inference time.\n",
    "condition_attributes = tts_model.make_condition_attributes(\n",
    "    [voice_path], cfg_coef=2.0\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "4",
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"Generating audio...\")\n",
    "\n",
    "# This doesn't do streaming generation,\n",
    "result = tts_model.generate([entries], [condition_attributes])\n",
    "\n",
    "frames = torch.cat(result.frames, dim=-1)\n",
    "audio_tokens = frames[:, tts_model.lm.audio_offset :, tts_model.delay_steps :]\n",
    "with torch.no_grad():\n",
    "    audios = tts_model.mimi.decode(audio_tokens)\n",
    "\n",
    "audio = audios[0].cpu().numpy()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "5",
   "metadata": {},
   "outputs": [],
   "source": [
    "display(\n",
    "    Audio(audio, rate=tts_model.mimi.sample_rate, autoplay=True)\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "6",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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