US English Female Text-to-speech (by Google)

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "background": {
    "scripts": [
      "voice_lstm_en-US.js",
      "tts_controller.js",
      "tts_main.js"
    ]
  },
  "description": "This is a high-quality text-to-speech (TTS) voice extension that runs in your browser using Native Client technology.",
  "icons": {
    "16": "google-tts-16.png",
    "48": "google-tts-48.png",
    "128": "google-tts-128.png",
    "256": "google-tts-256.png"
  },
  "manifest_version": 2,
  "name": "US English Female Text-to-speech (by Google)",
  "permissions": [
    "ttsEngine",
    "unlimitedStorage"
  ],
  "tts_engine": {
    "voices": [
      {
        "event_types": [
          "start",
          "word",
          "end",
          "error"
        ],
        "gender": "female",
        "lang": "en-US",
        "voice_name": "US English Female TTS (by Google)"
      }
    ]
  },
  "version": "2.2"
}