汉语拼音音频数据汇集（目前为 mp3 或 wav 格式），原始音频来自网络，已移除重复文件，本项目仅供参考。
- https://www.digmandarin.com/chinese-pinyin-chart
- http://lost-theory.org/chinese/phonetics/
- https://mandarintemple.com/learning-materials/pinyin-table/
- https://studycli.org/pinyin-chart/
- https://www.uvm.edu/~chinese/pinyin.htm
- https://chinese.yabla.com/chinese-pinyin-chart.php
- https://yoyochinese.com/chinese-learning-tools/Mandarin-Chinese-pronunciation-lesson/pinyin-chart-table
- https://www.sreading.org/zh-hans/pinyin-pathway
- https://github.com/hotoo/pinyin/tree/master/public/audio
- https://github.com/davinfifield/mp3-chinese-pinyin-sound
- https://github.com/shikangkai/Chinese-Pinyin-Audio （和 lost-theory.org/github-davinfifield 重复的文件不保留）
- https://github.com/hugolpz/audio-cmn/tree/master/64k/syllabs
- https://gitcode.com/open-source-toolkit/79b35