Microsoft PowerPoint允许您添加不同类型的多媒体内容。音乐(Music)只是您可以添加以吸引注意力的另一种内容类型。不过，在开始向PowerPoint演示文稿添加音乐之前，请记住，并非所有类型的音乐，甚至不是每种音效都适合您的演示文稿。
作为创建引人入胜的 PowerPoint 演示文稿(creating engaging PowerPoint presentations)的一般规则，始终围绕内容定制演示文稿，而不是相反。
让我们了解如何将音乐添加到PowerPoint幻灯片，然后使用PowerPoint 功能区(PowerPoint Ribbon)中的播放控件自定义音乐文件。
在上传第一个音乐文件之前，您应该了解以下几点： (Here are a few things you should know before you upload the first music file: )
- 您可以在幻灯片中添加一个或多个音频文件。
- 您可以从 Internet 下载歌曲或音乐文件，然后将其插入幻灯片。
- 您可以录制自己的声音并将其作为旁白添加到您的演示文稿中。
- 当您想要覆盖较长的演示文稿时，您必须使用外部音频编辑器将多个音乐文件串在一起。
- PowerPoint 支持WAV、WMA、MP3和一些其他文件格式(few other file formats)。
在本文中，我们不会讨论向 PowerPoint 添加音频旁白(adding audio narration to PowerPoint)。相反，让我们看看如何使用您选择的声音文件 将音乐添加到您的PowerPoint演示文稿中。(PowerPoint)
将音乐添加(Add Music)到您的PowerPoint 演示文稿中(PowerPoint Presentation)
向PowerPoint(PowerPoint)幻灯片添加音乐就像上传任何其他文件类型一样。
- 转到Ribbon > Insert选项卡。在媒体组中，选择Audio > Audio on My PC。
- 浏览(Browse)到桌面上音频文件的位置并上传。图标代表幻灯片上的声音文件。您可以将其拖放到任何位置。
- 文件上传到幻灯片后，“音频工具播放(Audio Tools Playback)”选项卡就会出现在功能区上。(Ribbon)您还可以在普通(Normal)幻灯片视图中选择音频文件的图标并显示音频工具播放(Audio Tools Playback)选项卡。
使用音频工具播放选项卡(Audio Tools Playback Tab)自定义音乐(Music)
默认情况下，音频样式(Audio Style)自动设置为无样式(No Style)。
您可以选择在后台播放(Play in Background)。在后台(Background)播放使音频文件在幻灯片放映期间自动启动，并且还可以跨多张幻灯片播放。
有三种方式开始播放。
- 自动：(Automatically:)当幻灯片出现时，音乐自动开始。
- 单击时：(When Clicked On: )音乐仅在您单击音频图标时播放。为此，请取消选中在显示期间隐藏(Hide During Show)选项以在演示视图中显示图标。
- 在点击序列中：(In Click Sequence:)当您在幻灯片上配置的其他效果（如动画效果）触发时播放音乐。
其他选项，如音量、跨幻灯片播放(Play Across Slides)、循环(Loop)直到停止(Stopped)和播放后倒带(Rewind)都是不言自明的。
如何修剪你的音乐剪辑
“播放(Playback)”选项卡上的“编辑(Editing)”组为您提供了几种更改音乐文件发声方式的方法。您可以使用淡入(Fade In)和淡出计时器添加(Fade Out)淡入淡出(Fade)效果，以便在演示文稿中逐渐引入声音片段。
Trim Audio是另一种编辑工具，它可以剪掉声音片段中不需要的部分并保留您要播放的部分。单击(Click)按钮打开修剪音频(Trim Audio)框。
单击播放(Play)按钮。当播放头到达您要进行剪切的点时，单击“暂停”(Pause)按钮。如果需要，使用“(Make)下一帧”(Next Frame)和“上一帧(Previous Frame)”按钮进行微调。当然，您也可以将播放头擦洗到所需位置。
将(Drag)绿色标记（在剪辑的开头）拖到标记位置。要修剪剪辑的结尾，请将右侧的红色标记拖到要结束剪辑的新点。
除了拖动标记，您还可以记下结束点的时间，然后将其输入到开始(Start)和结束(End)时间框中。
保存演示文稿时，修剪的信息将保存在文件中。您也可以在PowerPoint之外保存修剪后的音乐文件的单独副本。
如何将书签(Bookmarks)添加到音频(Audio)文件
您还可以使用书签来制作音乐文件。书签(Bookmarks)就像任何其他书签一样工作。当您在 PowerPoint 中使用视频文件或旁白的音频文件 时，它们会更有用。
但是您也可以在播放音乐时将它们用于一些创造性用途。例如，您可以在音频文件上使用书签来触发新动画，例如入口幻灯片或过渡效果。
从播放(Playback)选项卡添加书签很简单。
- 在幻灯片上，选择音频剪辑并单击“播放”(Play)。当您到达要添加书签的位置时，单击暂停(Pause)。
- 在书签组中，单击添加书签(Add Bookmark)。播放头上的黄点显示所选书签的位置。白点是未选中的书签。
- 您可以添加多个书签。要删除书签，请选择要删除的书签，然后点击工具栏上的删除书签(Remove Bookmark)按钮。
当您想要更改音频图标时(Audio Icon)
默认情况下，音频文件将在幻灯片中显示为扬声器图标。如果需要，您可以将图标更改为不同的图片。
- 选择音频文件，然后单击“音频格式(Audio Format)”选项卡。
- 单击更改图片(Change Picture)命令。
- 使用下拉菜单从源选项中选择一个文件。
- 单击插入(Insert)以交换新图片的默认图标。
为您的演示播放完美的音频(Perfect Audio)
您可以为不同的幻灯片添加不同的音效。从很酷的背景介绍音乐开始(Start)，或者在一张幻灯片上添加一个微小的音效，或者只是录制您自己的评论。
当您想将 PowerPoint 转换为视频(convert PowerPoint into a video)时，您可以考虑在幻灯片中使用歌曲或乐器乐谱。
但请记住，这些媒体不应该压倒您演示文稿的内容。有效演示的每条规则都表明，重要的是要知道要遗漏什么以及要在PowerPoint幻灯片中添加什么音乐。
How to Add Music to PowerPoint Presentations
Microsoft PowerPoint allows you to add different types of multimedia content. Music is just one more cоntent type you can add to catch attention. Before you start adding music to your PowerPoint presentations though, do remember that not all types of music and even not every sound effect may be suitable for your presentation.
As a general rule for creating engaging PowerPoint presentations, always tailor your presentation around the content and not the other way around.
Let’s learn how to add music to your PowerPoint slides and then customize the music file with the playback controls in the PowerPoint Ribbon.
Here are a few things you should know before you upload the first music file:
- You can add one or several audio files to your slides.
- You can download a song or a music file from the internet and then insert it in your slides.
- You can record your own voice and add it as a narration to your presentation.
- You must use an external audio editor to string together multiple music files when you want to cover a long presentation.
- PowerPoint supports WAV, WMA, MP3, and a few other file formats.
In this article, we won’t talk about adding audio narration to PowerPoint. Instead, let’s look at how to add music to your PowerPoint presentation with a sound file of your choice.
Add Music To Your PowerPoint Presentation
Adding music to PowerPoint slides is just like uploading any other file type.
- Go to the Ribbon > Insert tab. In the Media group, select Audio > Audio on My PC.
- Browse to the location of the audio file on your desktop and upload it. An icon represents the sound file on the slide. You can drag and position it anywhere.
- The Audio Tools Playback tab appears on the Ribbon as soon as the file is uploaded on the slide. You can also select the icon of the audio file in the Normal slide view and display the Audio Tools Playback Tab.
- Click the Preview button to test the playback.
Customize The Music With The Audio Tools Playback Tab
By default, the Audio Style is automatically set to No Style.
You can select Play in Background. Play in Background makes the audio file start automatically during a slide show and also play across multiple slides.
There are three ways to start the playback.
- Automatically: The music starts automatically when the slide appears.
- When Clicked On: The music only plays when you click on the audio icon. For this to work, uncheck the Hide During Show option to reveal the icon in the presentation view.
- In Click Sequence: The music plays when triggered with other effects you’ve configured on the slide (such as animation effects).
The other choices like Volume, Play Across Slides, Loop until Stopped, and Rewind After Playing are all self-explanatory.
How To Trim Your Music Clip
The Editing group on the Playback tab gives you a few ways to change the way your music file will sound. You can add Fade effects with the Fade In and Fade Out timers to gradually introduce the sound clip in your presentation.
Trim Audio is another editing tool that can snip away the unwanted parts of a sound clip and keep the section you want to play. Click the button to open the Trim Audio box.
Click the Play button. When the playhead reaches the point where you want to make the cut, click the Pause button. Make tiny adjustments with the Next Frame and Previous Frame buttons if required. You can, of course, scrub the playhead to the desired position too.
Drag the green marker (at the start of the clip) to the marker position. To trim the end of the clip, drag the red marker on the right to the new point where you want to end it.
Instead of dragging the markers, you can also note the time of the end points and then enter it in the Start and End time boxes.
When you save the presentation, the trimmed information is saved in the file. You can also save a separate copy of the trimmed music file outside PowerPoint too.
How To Add Bookmarks To An Audio File
You can also use bookmarks to make your music file work. Bookmarks work just like any other bookmarks. They are more useful when you use video files in your PowerPoint or narrated audio files.
But you can put them to a few creative uses while playing music too. For instance, you can use a bookmark on an audio file to trigger a new animation like an entrance slide or a transition effect.
Adding a bookmark is simple from the Playback tab.
- On the slide, select the audio clip and click Play. When you reach the point where you want to add the bookmark, click Pause.
- In the Bookmarks group, click on Add Bookmark. A yellow dot on the playhead shows the position of the selected bookmark. A white dot is an unselected bookmark.
- You can add multiple bookmarks. To remove a bookmark, select the one you want to remove and hit the Remove Bookmark button on the toolbar.
When You Want To Change The Audio Icon
By default, an audio file will appear as a speaker icon in the slide. If you want, you can change the icon to a different picture.
- Select the audio file, then click the Audio Format tab.
- Click the Change Picture command.
- Use the dropdown to select a file from the choice of sources.
- Click Insert to swap the default icon for the new picture.
Play The Perfect Audio For Your Presentation
You can add different sound effects to different slides. Start with a cool background intro music, or add a tiny sound effect to one slide, or just record your own commentary.
You can consider using songs or an instrumental score to your slides when you want to convert PowerPoint into a video.
But do remember that these media shouldn’t overpower the content of your presentation. Every rule of effective presentations says that it’s important to know what to leave out as well as what music to add into your PowerPoint slides.
