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 "cells": [
  {
   "cell_type": "markdown",
   "id": "b6ee1ede",
   "metadata": {},
   "source": [
    "## Voice Style Control Demo"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b7f043ee",
   "metadata": {},
   "outputs": [],
   "source": [
    "import os\n",
    "import torch\n",
    "from openvoice import se_extractor\n",
    "from openvoice.api import BaseSpeakerTTS, ToneColorConverter"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "15116b59",
   "metadata": {},
   "source": [
    "### Initialization"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "aacad912",
   "metadata": {},
   "outputs": [],
   "source": [
    "ckpt_base = 'checkpoints/base_speakers/EN'\n",
    "ckpt_converter = 'checkpoints/converter'\n",
    "device=\"cuda:0\" if torch.cuda.is_available() else \"cpu\"\n",
    "output_dir = 'outputs'\n",
    "\n",
    "base_speaker_tts = BaseSpeakerTTS(f'{ckpt_base}/config.json', device=device)\n",
    "base_speaker_tts.load_ckpt(f'{ckpt_base}/checkpoint.pth')\n",
    "\n",
    "tone_color_converter = ToneColorConverter(f'{ckpt_converter}/config.json', device=device)\n",
    "tone_color_converter.load_ckpt(f'{ckpt_converter}/checkpoint.pth')\n",
    "\n",
    "os.makedirs(output_dir, exist_ok=True)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "7f67740c",
   "metadata": {},
   "source": [
    "### Obtain Tone Color Embedding"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "f8add279",
   "metadata": {},
   "source": [
    "The `source_se` is the tone color embedding of the base speaker. \n",
    "It is an average of multiple sentences generated by the base speaker. We directly provide the result here but\n",
    "the readers feel free to extract `source_se` by themselves."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "63ff6273",
   "metadata": {},
   "outputs": [],
   "source": [
    "source_se = torch.load(f'{ckpt_base}/en_default_se.pth').to(device)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "4f71fcc3",
   "metadata": {},
   "source": [
    "The `reference_speaker.mp3` below points to the short audio clip of the reference whose voice we want to clone. We provide an example here. If you use your own reference speakers, please **make sure each speaker has a unique filename.** The `se_extractor` will save the `targeted_se` using the filename of the audio and **will not automatically overwrite.**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "55105eae",
   "metadata": {},
   "outputs": [],
   "source": [
    "reference_speaker = 'resources/example_reference.mp3' # This is the voice you want to clone\n",
    "target_se, audio_name = se_extractor.get_se(reference_speaker, tone_color_converter, target_dir='processed', vad=True)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "a40284aa",
   "metadata": {},
   "source": [
    "### Inference"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "73dc1259",
   "metadata": {},
   "outputs": [],
   "source": [
    "save_path = f'{output_dir}/output_en_default.wav'\n",
    "\n",
    "# Run the base speaker tts\n",
    "text = \"This audio is generated by OpenVoice.\"\n",
    "src_path = f'{output_dir}/tmp.wav'\n",
    "base_speaker_tts.tts(text, src_path, speaker='default', language='English', speed=1.0)\n",
    "\n",
    "# Run the tone color converter\n",
    "encode_message = \"@MyShell\"\n",
    "tone_color_converter.convert(\n",
    "    audio_src_path=src_path, \n",
    "    src_se=source_se, \n",
    "    tgt_se=target_se, \n",
    "    output_path=save_path,\n",
    "    message=encode_message)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "6e3ea28a",
   "metadata": {},
   "source": [
    "**Try with different styles and speed.** The style can be controlled by the `speaker` parameter in the `base_speaker_tts.tts` method. Available choices: friendly, cheerful, excited, sad, angry, terrified, shouting, whispering. Note that the tone color embedding need to be updated. The speed can be controlled by the `speed` parameter. Let's try whispering with speed 0.9."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "fd022d38",
   "metadata": {},
   "outputs": [],
   "source": [
    "source_se = torch.load(f'{ckpt_base}/en_style_se.pth').to(device)\n",
    "save_path = f'{output_dir}/output_whispering.wav'\n",
    "\n",
    "# Run the base speaker tts\n",
    "text = \"This audio is generated by OpenVoice.\"\n",
    "src_path = f'{output_dir}/tmp.wav'\n",
    "base_speaker_tts.tts(text, src_path, speaker='whispering', language='English', speed=0.9)\n",
    "\n",
    "# Run the tone color converter\n",
    "encode_message = \"@MyShell\"\n",
    "tone_color_converter.convert(\n",
    "    audio_src_path=src_path, \n",
    "    src_se=source_se, \n",
    "    tgt_se=target_se, \n",
    "    output_path=save_path,\n",
    "    message=encode_message)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "5fcfc70b",
   "metadata": {},
   "source": [
    "**Try with different languages.** OpenVoice can achieve multi-lingual voice cloning by simply replace the base speaker. We provide an example with a Chinese base speaker here and we encourage the readers to try `demo_part2.ipynb` for a detailed demo."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "a71d1387",
   "metadata": {},
   "outputs": [],
   "source": [
    "\n",
    "ckpt_base = 'checkpoints/base_speakers/ZH'\n",
    "base_speaker_tts = BaseSpeakerTTS(f'{ckpt_base}/config.json', device=device)\n",
    "base_speaker_tts.load_ckpt(f'{ckpt_base}/checkpoint.pth')\n",
    "\n",
    "source_se = torch.load(f'{ckpt_base}/zh_default_se.pth').to(device)\n",
    "save_path = f'{output_dir}/output_chinese.wav'\n",
    "\n",
    "# Run the base speaker tts\n",
    "text = \"今天天气真好，我们一起出去吃饭吧。\"\n",
    "src_path = f'{output_dir}/tmp.wav'\n",
    "base_speaker_tts.tts(text, src_path, speaker='default', language='Chinese', speed=1.0)\n",
    "\n",
    "# Run the tone color converter\n",
    "encode_message = \"@MyShell\"\n",
    "tone_color_converter.convert(\n",
    "    audio_src_path=src_path, \n",
    "    src_se=source_se, \n",
    "    tgt_se=target_se, \n",
    "    output_path=save_path,\n",
    "    message=encode_message)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "8e513094",
   "metadata": {},
   "source": [
    "**Tech for good.** For people who will deploy OpenVoice for public usage: We offer you the option to add watermark to avoid potential misuse. Please see the ToneColorConverter class. **MyShell reserves the ability to detect whether an audio is generated by OpenVoice**, no matter whether the watermark is added or not."
   ]
  }
 ],
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