Đài PTTH Thanh Hoá | CC BY 3.0 / Wikimedia Commons
Source: https://commons.wikimedia.org/wiki/File:C%E1%BA%A5p_%C4%91%E1%BB%95i_gi%E1%BA%A5y_ph%C3%A9p_LX_qua_b%C6%B0u_%C4%91i%E1%BB%87n.ogv
License: https://creativecommons.org/licenses/by/3.0
Changes: excerpted audio, re-encoded, captions and original motion graphics added. No synthetic voice or added soundtrack.

Video license: CC-BY-4.0 https://creativecommons.org/licenses/by/4.0/
Artist / recording page: https://commons.wikimedia.org/wiki/File:C%E1%BA%A5p_%C4%91%E1%BB%95i_gi%E1%BA%A5y_ph%C3%A9p_LX_qua_b%C6%B0u_%C4%91i%E1%BB%87n.ogv
Motion graphics and edit: AI Free Audio to Video.