> For the complete documentation index, see [llms.txt](https://docs.acestudio.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.acestudio.ai/docs/product-wiki-zh/ai-gong-ju/doubles.md).
# Doubles
## 什么是 Doubles
在人声制作中，我们通常会在左右声像 50%–100% 范围内，再录两条 take，与主唱或和声人声一起使用，以获得更宽的空间感和更饱满的音色。
{% hint style="info" %}
**为什么不直接复制？**
如果只是复制，内容会与原始内容完全相同。在这种情况下，AI 会为复制后的内容生成相同的音频结果，这会导致相位问题。
{% endhint %}
## 创建 Doubles
在 MIDI 片段或轨道头上右键单击，并在右键菜单中选择“创建人声 Doubles”以打开 Doubles 面板。
在人声 Doubles 面板中，你可以
* 设置与原始内容的相似度。100% 表示不对原始内容做任何更改。
* 默认的人性化处理包括音符时长、音符位置以及辅音时长
* 85% - 90% 通常就足以满足常规需求。
* 是否对用户音高应用随机效果。
* 这只会对你绘制的音高曲线生效。勾选此复选框不会更改 AI 生成的默认音高。
* 是否对 VoiceMix 应用随机效果。
* 如果你没有在这条轨道上混合声线，就不需要勾选此框。
---
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