The method to set the background music for the entire PPT process is as follows:
Open "Insert"->"Sound"->"Sound from File" and insert the prepared sound file (MP3 or WAV, etc.)
At this time, the system will pop up a dialog box asking "How do you want to start playing the sound when the slide is playing?" Click "Auto" to play the sound when the slide is displayed. There is a "speaker" icon on the slide.
Click to select the "Speaker" icon and select "Animation"->"Custom Animation";
Click the drop-down arrow on the right side of "Dawn of Heroes.mp3" in the "Custom Animation" dialog box on the right side of the window, select "Start from previous item", and then click "Effect Options";
On the "Effect Options" settings page, the default option for "Stop Playing" is [When clicked]. According to your needs, if you want the background music to exist in "X" slides, select the "Stop Playing" option. "After X slides", where X represents the number of slides you want the background music to persist. If you want to add full background music, just insert the music file on the first slide and change the "X" after the "Stop Playing" option to the total number of slides. Or you can fill in a very large number as long as it is larger than the number of slides you have.
Integrate PPT and music into one
Because by default, ppt will automatically embed the sound into the document if the sound file is less than 100KB. In fact, we can change this value as needed. The maximum size that can be changed is 50000KB, which is 50MB. How to change it?
1. Click the "Tools-Options-General" tab and fill in "50000" after "Linked sound files are not less than"; 2. The added sound files must be in ".wav" format, ".mp3 or .wma" "You can't wait for the format!" Then export the pps file and delete the original sound file.
But we will find that sometimes our music library only has music in .mp3 or .wma format, but not in .wav format. So what should we do? Then Ala told Nong Xianfu to be urgent and look down.
There are many music conversion software on the Internet now, such as: Gold wave. If you search on Google, you can find many versions of Muluolao, haha. Choose one at will. Here I provide an address: http://www.lxzx.nh.edu.sh.cn/uploadfile/200639162142747.rar. It can convert between various music file formats. WAV -> MP3, WAV -> WMA, WAV -> OGG, MP3 -> WMA, MP3 -> WAV, MP3 -> MP3, MP3 -> OGG WMA -> MP3, WMA -> ; WAV, WMA -> WMA, WMA -> OGG, OGG -> MP3, OGG -> WAV, OGG -> WMA, OGG -> OGG.
The problem arises again. After conversion, the original 3MB mp3 file suddenly became a 27MB or larger file. Although we succeeded in converting mp3 to wav, it was too frustrating to get it so big all of a sudden. Is there any way to make it smaller? This makes it easy to copy. There are also many methods of compression. Let me tell you a relatively simple method.
How to use WINDOWS recorder to compress WAV audio files
I believe that everyone’s computer has a Windows system installed, no matter 95, 98, 2000, XP, ME, etc., it all comes with a voice recorder software. Unless you are still in the DOS era, this voice recorder software can be found in Start Menu>Programs>Accessories >Entertainment>The recorder is found and opened. 1. First, "Open" the WAV file you want to compress from the "File" menu. 2. Then select "Properties" from the "File" menu. 3. A window will pop up, click "Convert Now" 4. Select "Phone" in the drop-down window. Quality" or "Radio Quality", click "OK" 5. Return to the page for immediate conversion, and then click "OK" 6. Click "Save As" in the "File" menu, select the storage location, and save.
The wav file produced in this way will be much smaller.
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