教程:声音去除，自动语音对齐，以及更多的Adobe Audition CC
探索3个新的关键功能在试听CC, the newest version of Adobe's professional audio editing application: Sound Removal for eliminating hums and other variable-frequency unwanted noises, 响度雷达仪表，用于匹配和坚持广播音量标准, 和自动语音对齐ADR.
在本教程中 I'm going to walk you through a couple of the new features in Adobe Audition Creative Cloud (CC). 我想你们中的很多人可能已经更新了，而你们中的一些人还在观望. I’m going to show you a couple of the new things that you have to look forward to when you decide to upgrade, or when those of you who have upgraded but haven’t explored its features yet start using it in your projects.
请注意，要遵循本教程的文本, you’ll need to refer to the video version embedded in the article if you want to hear the audio issues I’m describing in the example clip. 我会提供时间码这样你就可以直接跳到我播放片段的地方.
声音剂
我要给大家展示的第一个功能是“声音清除器”. 如果你曾经在任何其他应用程序中使用过某种噪音去除工具, 你会发现它们是相似的, 但是在很小的程度上是不同的. 我这里有一段音轨是我通过USB转盘直接从黑胶唱片上录下来的. You can see that there's a little bit of low hum where the pointer is hovering in the waveform 所示 图1(下面).
图1. 注意波形中可见的低嗡嗡声. 我们会用声音清除器处理的.
可能在网上听这个，感觉不太明显. 但如果你戴上一套好的耳机或扬声器听，会有明显的嗡嗡声. If you listen closely, you can get a sense of what it sounds like at the 1:00 mark in the clip below.
所以你可能能听到嗡嗡声，也可能听不到. 但它确实存在，就像我们从波形的视觉表现中知道的那样. 你可以很容易地在图1所示的频谱底部看到它.
我们怎么去掉它呢? 你可以选择选中它，设置一个杂音打印，然后去掉它, 在早期版本的《百家乐app下载》中，我们很可能就是这么做的. But Audition CC has a slightly different way of doing that with the new 声音剂 tool, 哪个是用来清除变频噪声的. 下面是它的工作原理.
首先，选择画笔选择工具(键盘快捷键F)，如图所示 图2(下面).
图2. 选择画笔选择工具.
接下来，您需要在频率(下面的图3)，我们将其标识为图1中的嗡嗡声. 如果你用画笔画得不太好, 如果你有点松的话, 别担心. 你可以调整它(升高), 降低它, 或者沿着时间线进一步扩展)，很容易使用角参考线, 顶部和底部, 所示 图4(在图3下面).
图3. 用绘画掩盖喧嚣.
图4. 调整油漆与角落的指导.
发出像这样的低频嗡嗡声, 你要小心不要取出太多，以免失去一些低端资产. So get to where it looks visually accurate to you (keeping in mind that you can adjust it later after previewing the effect), 就放在那里, 看看它能做什么.
To prepare Audition to apply the 声音剂 effect by telling it to analyze your selection, go to Effects > Noise Reduction/Restoration > Learn Sound Model (下面的图5).
图5. 选择学习声音模型.
现在, 这个工具的美妙之处在于，我不仅可以选择我已经选择的区域, 但我也可以看看赛道上其他安静的地方. 如果我能找到那种嗡嗡声, 即使是在最底层, 我可以在其他地方选择一些底部, and Audition will combine all of that in the Sound Model it’s learning in order to to figure out exactly what I'm trying to get rid of.
当然, it's all adjustable; you can change the size of your selection and modify it throughout, 如图4中的第一个选择所示.
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