Sunday, September 16, 2018

All Correct and 100% Useless

All Correct and 100%  Useless

We have all grown to depend on error messages to correct computer mistakes.  Spell-checking and grammar checking have helped us become better writers and present.  Programs such as PowerPoint are a vast improvement over the 35mm slides we prepared in the pre-computer days.  I have always searched for the stretching the limits of my PowerPoint knowledge.  A few weeks ago, I learned the PowerPoint presentation could produce a video MP4 files by just a “save as” command.  I saved a file and this error message popped up.

For this test I had only one media file.  The error message does not tell me what is wrong with the media.  Many hours of experimentation I learned this message means --  Microsoft Office cannot save MP3 audio files when creating MP4 video files.  However, WAV files can be saved without conversion or problems.  The message was accurate, but useless.

Creating a Video PPT File

Creating video file for your PowerPoint presentation gives you control and security over what users can do with your information.  The end users cannot change or edit your file and you can add audio narration, music, or other sounds.  Users do not need PowerPoint to see the video.

Start by going to the File menu. Choose Export. Choose Create video.  Choose the presentation quality and the options for slide timings.  If you created slide timings when you made the show, you may use them or a selection a standard timing for that will apply to all of the slides.  Then click on Create Video. 

Audio in MP3 format cannot be used for PPT videos.  PowerPoint saves audio in WAV format.  Files may be converted with audio programs such as Audacity.  If you don’t convert the file to WAV, another program can be used to add the recording to the completed video.  I used a free online system called Add Audio to Video.  (   This web page asks you to upload the MP4 file and the audio file.  Make sure the timing on the audio is what you want to match the slide set.  Add Audio has many options.  I choose add audio to video.    In a few moments, your file will be converted, and you can download it. 

The MP4 video is immediately viewable on your computer.  If you want to share it, use one of the video sharing services such as YouTube, Vimeo, or Screencast.  You will have to determine which works best for you.  I choose the free version of Screencast because it has no ads or promos as YouTube. The free version limits storage size and monthly downloads.  Screencast gives a URL to share that will send users to the file and play it.  The other option is an embedded viewer that can be added to a web page.  The viewer size may be changed.  You are done and may tell people the URL for the video.    

1 comment:

Unknown said...

Thank you for this informative article! It is very timely, as we followed the excellent advice you gave us this summer to use PowerPoint to create a slide show with audio. Since time was of the essence, we turned to a graphics designer we know who produced an amazing presentation. It was a tremendous success when I set it up at the upshernish. Thank you again for your invaluable suggestion.

Gmar chasimah tovah.