- Python 頻譜辨識
    - [python nn 聲音辨識 -1 傅立葉轉換](https://xiang1023.blogspot.com/2017/09/python-ann-1.html)
    - [使用Python和Keras建立簡單語音識別引擎_51CTO系統頻道 - MdEditor](https://www.gushiciku.cn/pl/pJUm/zh-tw)
    - [Day 25：自動語音識別(Automatic Speech Recognition) -- 觀念與實踐 - iT 邦幫忙::一起幫忙解決難題，拯救 IT 人的一天](https://ithelp.ithome.com.tw/articles/10195763)
    - [利用python实现语音文件的特征提取 - 知乎](https://zhuanlan.zhihu.com/p/228399174)
    - [Python干货：如何使用Python对音频进行特征提取？ - 知乎](https://zhuanlan.zhihu.com/p/268292831)
    - [GitHub - bishoph/sopare: Real time sound pattern recognition in Python for Raspberry/Banana Pi.](https://github.com/bishoph/sopare)
    - [home of bishoph | Smarthome, speech recognition, voice control, Raspberry Pi and more](http://www.bishoph.org/)

- Shutterstock/Adobe 可以用的 tag
    - 花
        - flower, blossom, beauty, happiness, passion, background, nature, spring, vitality
    - 紫籐
        - wisteria, platonic, romance, playfulness
    - 玫瑰
        - friendship, warmth, happiness, jealousy, romance, beauty, admiration
    - 櫻花
        - cherry blossom, purity, love, samurai, japan, energy