kyutai/tts_pytorch.ipynb

{
 "cells": [
  {
   "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/{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",
    "tts_model.mimi.streaming_forever(1)\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",
    "pcms = []\n",
    "def _on_frame(frame):\n",
    "    print(\"Step\", len(pcms), end=\"\\r\")\n",
    "    if (frame != -1).all():\n",
    "        pcm = tts_model.mimi.decode(frame[:, 1:, :]).cpu().numpy()\n",
    "        pcms.append(np.clip(pcm[0, 0], -1, 1))\n",
    "\n",
    "result = tts_model.generate([entries], [condition_attributes], on_frame=_on_frame)\n",
    "\n",
    "print(\"Done generating.\")\n",
    "audio = np.concatenate(pcms, axis=-1)"
   ]
  },
  {
   "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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