音频剪切_音频编辑入门指南：剪切，修剪和排列

音频剪切

Audacity novices often start with lofty project ideas, but sometimes they lack the basics. Knowing how to cut and trim tracks is basic audio editing and is a fundamental starting point for making more elaborate arrangements.

大胆的新手通常从崇高的项目创意开始，但有时他们缺乏基础知识。知道如何剪切和修剪音轨是基本的音频编辑，并且是进行更精心安排的基本出发点。

For this exercise, I’ll be making a ringtone from a Castlevania: Symphony of the Night track. I have the original CD and used that so I started with better quality audio than an MP3. You can follow along with any file you like, just so you get a feel for cutting, trimming, and arranging sound clips for yourself.

对于本练习，我将从《恶魔城：夜晚的交响曲》中制作铃声。我拥有原始CD并使用过该CD，因此我开始使用的音频质量要优于MP3。您可以随心所欲地跟随任何文件，这样就可以自己剪切，修剪和安排声音片段。

I know which parts I want to edit in the track, but a quick play-through will help me look for those areas visually.

我知道我想在曲目中编辑哪些部分，但是快速浏览可以帮助我直观地查找这些区域。

The scrubber in the above screenshot is pointing to a lull in the music, where the audio drops low or fades out. These areas are ideal spots to work with.

上方屏幕截图中的清理器指向音乐中的停顿状态，音频下降或消失。这些区域是理想的合作场所。

First, let’s make sure the Selection tool is active.

首先，确保选择工具处于活动状态。

Next, let’s make a selection in an area of the track where we want to make an edit. Click and drag your mouse, and you’ll see that the background changes to a darker shade of gray.

接下来，让我们在要编辑的音轨区域中进行选择。单击并拖动鼠标，您将看到背景变为更深的灰色阴影。

I know that the song changes somewhere in here. You can hit CTRL+1 to Zoom In, or click on the icon that’s a magnifying glass with a plus. This will help us identify more precisely where to end our selection.

我知道这首歌在这里某处改变了。您可以按CTRL + 1进行放大，或单击带有加号的放大镜图标。这将帮助我们更准确地确定在哪里结束我们的选择。

That’s much better, isn’t it? You can see that on the right side of the selection area, there’s a spike in amplitude. That’s where I want my selection to end, but it’s not properly aligned. If you move your mouse close to that area, you’ll see the cursor change to a hand that’s pointing.

那好多了，不是吗？您会看到在选择区域的右侧，振幅出现尖峰。那是我希望选择结束的地方，但是排列不正确。如果将鼠标移到该区域附近，您会看到光标变为指向的手。

Clicking and dragging while this cursor is shown will allow you to change that particular selection boundary. You can see mine is much better now.

在显示此光标时单击并拖动将允许您更改特定的选择边界。您可以看到我的现在好多了。

Repeat the same process with the left boundary. You can see my selection encompasses a quiet beginning point and a quiet ending point, which makes it sound clean and natural.

左边界重复相同的过程。您可以看到我的选择包含一个安静的起点和一个安静的终点，这使其听起来干净自然。

What I want to do is cut this section and move it to another area. I can just click the Cut button or hit CTRL+X.

我想做的是剪掉这一部分，然后将其移到另一个区域。我只需单击“剪切”按钮或按CTRL + X。

You can see that the rest of the track after my selection got pushed up to where the selection started.

您可以看到我选择后的曲目的其余部分被推到了选择开始的位置。

While it’s possible to paste that clip in the same track at a different point, it’s much easier to make arrangements using multiple tracks. Go to Tracks > Add New > Stereo Track.

尽管可以将该剪辑粘贴到同一轨道的不同点，但使用多个轨道进行安排要容易得多。转到轨道>添加新>立体声轨道。

Using different tracks can help keep things straight, so you can think of it like using Layers in an image editor. Sometimes, it’s more work to use multiple tracks, and sometimes it’s a necessity, but it’s process you should familiarize yourself with if you plan to do audio editing.

使用不同的轨道可以使事情保持直线，因此您可以将其视为在图像编辑器中使用“图层”。有时，使用多个音轨需要做更多的工作，有时这是必要的，但是如果您打算进行音频编辑，则应该熟悉此过程。

Two tracks ending up being too tall for good screenshots, so I clicked on the bottom of each track area and dragged up to resize them vertically. This has no effect on the audio, it just makes it easier to see things.

两条轨道最终都太高而无法获得良好的屏幕截图，因此我单击了每个轨道区域的底部，然后向上拖动以垂直调整它们的大小。这对音频没有影响，只是使看东西更容易。

And now, click where you want to paste the clip in the second track and click on the Paste button or hit CTRL+V.

现在，单击要在第二轨道中粘贴剪辑的位置，然后单击“粘贴”按钮或按CTRL + V。

Note that the bottom track has an active selection. The dark background is not in the top track at all, despite being visible in the timeline. Now, I want to change its linear placement, or in other words, move it in time. To do that, we use the Time Shift Tool.

请注意，底部轨道具有活动的选择。尽管在时间轴中可见，但深色背景根本不在顶部轨道中。现在，我想更改其线性位置，换句话说，及时移动它。为此，我们使用时移工具。

Now you can click and drag anywhere in your selection and the whole thing will slide side-to-side. You can also have it snap to other locations, like the beginning or end.

现在，您可以单击并拖动选择中的任意位置，整个过程将左右滑动。您还可以将其捕捉到其他位置，例如开始或结束。

Alright, I have it where I want it in relation to another section of the track. When you hit play, however, Audacity will play both tracks over each other. This works well for mixing different tracks, but not here. Let’s insert some silence in the first track. Click on the selection tool and highlight the portion of the first track that’s directly above the second. You’ll see that you can snap to that area.

好吧，相对于曲目的其他部分，我可以在需要的地方使用它。但是，当您点击播放时，Audacity会同时播放两条音轨。这对于混合不同的音轨效果很好，但此处不适用。让我们在第一首曲目中插入一些沉默。单击选择工具，然后突出显示第一首曲目中第二首曲目正上方的部分。您会看到可以捕捉到该区域。

Next, click on the Insert Silence tool, located next to the Undo button.

接下来，单击“撤消”按钮旁边的“插入沉默”工具。

This converts our selection to silence. Instead of cutting and having the latter part of the track jump forward, this will keep it as-is because the silence acts as a placeholder. Next, I decided to cut some of the audio after the pasted clip.

这会将我们的选择转换为静音。无需剪切并使曲目的后半部分向前跳跃，而是将其保持原样，因为静音充当占位符。接下来，我决定在粘贴的剪辑之后剪切一些音频。

Finally, the portions of the track I wanted to align are properly done.

最后，我要对齐的轨道部分已正确完成。

But wait, I only want the middle sections of this track! Instead of cutting out areas of the track before and after, we can use the trim tool to make this easier. Use the selection tool to highlight what you want to keep.

但是，等等，我只想要这条轨道的中间部分！我们可以使用修剪工具来简化此过程，而不必前后剪切轨道的区域。使用选择工具突出显示您要保留的内容。

Adjust your start and end points, but be sure to drag your mouse down into the second track while making your selection. Notice how the dark gray background appears on both tracks in the above screenshot. When you’re ready, click on the Trim Tool, which is right next to the Paste button.

调整起点和终点，但是在进行选择时，请确保将鼠标向下拖动到第二条轨道。请注意，在上述屏幕截图中，深灰色背景如何出现在两条轨道上。准备好后，单击“粘贴”按钮旁边的“修剪工具”。

You can see that the Trim Tool acts just like a Crop Tool does in image editors. The Trim Tool leaves the audio where it is, but that’s not particularly useful in our case. Use the Time Shift Tool to move this so it aligns with 0 on the timeline. All done!

您可以看到，修剪工具的作用就像图像编辑器中的“修剪工具”一样。修剪工具会将音频保留在原处，但这在我们的案例中并不是特别有用。使用“时移工具”移动它，使其在时间轴上与0对齐。全做完了！

Since this is a ringtone for me, I went to File > Export and saved it as an MP3.

由于这是我的手机铃声，因此我转到“文件”>“导出”并将其保存为MP3。

If you chose not to follow along, here are a few important points to take away from this procedure:

如果您选择不遵循，则此过程有一些重要要点：

Your audio selections can be changed by dragging from as close to the original boundary as possible.
可以通过从尽可能靠近原始边界的方向拖动来更改音频选择。
The Cut Tool removes sections from the timeline, leaving no gap.
剪切工具从时间线中删除部分，不留任何间隙。
The Insert Silence Tool removes audio but leaves a gap.
插入静音工具可删除音频，但会留出空隙。
Pasting clips inserts them where ever the scrubber is, i.e. where you clicked last.
粘贴剪辑会将其插入到洗涤器所在的位置，即您最后单击的位置。
The Trim Tool acts as a Crop Tool, leaving the audio where it is in the timeline.
修剪工具充当裁剪工具，将音频保留在时间轴中。
You can add multiple tracks and use them like layers to better arrange your audio piece.
您可以添加多个轨道，并像分层一样使用它们，以更好地安排音频片段。

Hopefully this exercise will give you a feel for the really basic edits you can make to tracks. They’re the foundation of all of the more advanced stuff you’ll be doing, so executing them quickly and efficiently will save loads of time later on. If this is your first Audacity How-To, here are the other articles in this series so far:

希望本练习将使您对可以进行跟踪的真正基本编辑感到满意。它们是您将要执行的所有更高级的工作的基础，因此快速有效地执行它们将节省以后的时间。如果这是您的第一个Audacity How-To，这是迄今为止该系列的其他文章：