# 背景音乐署名

曲目：[Carefree](https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1400037)
作曲：Kevin MacLeod（incompetech.com）
许可：[Creative Commons Attribution 4.0 / CC BY 4.0](https://creativecommons.org/licenses/by/4.0/)

发布视频时，请把下面这段署名放在视频介绍或作品说明中：

> “Carefree” — Kevin MacLeod (incompetech.com)
> Licensed under Creative Commons: By Attribution 4.0 License
> https://creativecommons.org/licenses/by/4.0/
> Music source: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1400037
> Edits: 45-second excerpt, fade-in / fade-out, volume normalization and synchronization with the video.

本次使用原曲开头 45 秒，淡入 0.7 秒，最后 2.5 秒淡出，目标响度 −18 LUFS。原视频画面流直接复制，保留 45 秒、1350 帧的翻书动画。