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    "info": {
        "author": "Yihui Xiong",
        "author_email": "yihui.xiong@hotmail.com",
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        "classifiers": [
            "Development Status :: 2 - Pre-Alpha",
            "Intended Audience :: Developers",
            "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
            "Natural Language :: English",
            "Programming Language :: Python :: 2",
            "Programming Language :: Python :: 2.7",
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        "description": "Voice Engine\n============\n\n[![Build Status](https://travis-ci.org/voice-engine/voice-engine.svg?branch=master)](https://travis-ci.org/voice-engine/voice-engine)\n[![](https://img.shields.io/pypi/v/voice-engine.svg)](https://pypi.python.org/pypi/voice-engine)\n\n\nThe library is used to create voice interface applications.\nIt includes building blocks such as KWS (keyword spotting), DOA (Direction Of Arrival). There are also elements to measure RMS (dBFS or dB(A)).\n\n\n### Requirements\n+ pyaudio\n+ numpy\n+ snowboy\n\n\n### Installation\nInstall pyaudio, numpy and snowboy, use virtualenv a virtual python environment.\n\n```\nsudo apt install python-pyaudio python-numpy python-virtualenv\nsudo apt-get install swig python-dev libatlas-base-dev build-essential make\ngit clone --depth 1 https://github.com/Kitt-AI/snowboy.git\ncd snowboy\nvirtualenv --system-site-packages env\nsource env/bin/activate\npython setup.py build\npython setup.py bdist_wheel\npip install dist/snowboy*.whl\ncd ..\ngit clone https://github.com/voice-engine/voice-engine.git\ncd voice-engine\npython setup.py bdist_wheel\npip install dist/*.whl\n```\n\n### Get started\nTo record audio and search keyword \"snowboy\", see also [`kws_snowboy.py`](voice_engine/kws_snowboy.py)\n\n```python\nimport time\nfrom voice_engine.kws import KWS\nfrom voice_engine.source import Source\n\nsrc = Source()\nkws = KWS()\nsrc.link(kws)\n\ndef on_detected(keyword):\n    print('found {}'.format(keyword))\nkws.on_detected = on_detected\n\nkws.start()\nsrc.start()\nwhile True:\n    try:\n        time.sleep(1)\n    except KeyboardInterrupt:\n        break\nkws.stop()\nsrc.stop()\n```\n\n### Building blocks\nThe library uses gstreamer-like [elements](voice_engine/element.py) which can be linked together as an audio pipeline.\nOne element can connect to more than one other elements.\n\nThe topology can be:\n```\nSource --> ChannelPicker --> KWS          Source --> ChannelPicker --> KWS --> Alexa\n  |                          /\\\n  V                        /   \\\n DOA                   Alexa   Google Asissitant \n\n```\n\n\n",
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        "license": "GNU General Public License v3",
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