| Sound and Movie Solutions
Problem
You create a presentation that includes linked images, sounds or
movies. Everything looks perfect, so you email the presentation to
someone else, burn a CD of it or just move it to a different folder
on your own computer. Now nothing works right - Powerpoint displays
a missing graphic icon instead of your pictures, and it won't play
your sounds and movies.
Quick Fix for WAV Sounds
- Choose Tools, Options and go to the General tab
- Set the value next to "Link sounds with file size greater
than" to 50000 kb
- Click OK
- If you've already added sounds to your presentation, you'll
need to locate and delete them then re-insert them (use Insert,
Movies and Sounds, Sound from File...)
- The sounds you re-insert this way and any sounds (with file
sizes less than 50000kb or about 50mb) will be embedded into
your PPT file, not linked. Your PPT file will be larger this
way, but the sounds won't get lost.
Quick Fix for MP3 Sounds
MP3s are generally much smaller than WAVs but can't be embedded.
Luckily, there are a few tricks up the virtual sleeves:
Thanks to PowerPoint MVPs Jean-Pierre Forestier and Enric Mañas
for this method of using
CDex
(download it here and install it first). Then:
- Use Options (Opciones, etc.) to set your preferred language.
- Choose Convert, Add a RIFF-WAV header(s) to MP2 o MP3
file(s)
- Select the file you want to convert
- Click "Convert"...
By adding this RIFF-WAV header, we obtain a WAV file that's
the same size as the original mp3.
Once you've used CDEX to "WAVify" your MP3s you can insert them
using the Quick Fix for WAV Sounds instructions above and they'll be
embedded, not linked. And if they're not linked, the links can't
break.
There are other utilities that perform similar functions.
PowerPoint MVP Michael Koerner reports
http://www.studiodust.com/riffmp3.html will also do the job.
Michael also notes that this trick may not work in all versions
of PowerPoint under all operating systems. For example, it doesn't
work in PowerPoint 2002 under Windows 98 but works fine under
Windows XP.
Quick Fix for Movies and Other Sound Types
For each non-WAV sound or movie in your presentation
- Delete the sound or movie from your presenation
- Copy the sound or movie file to the same folder as your
presentation's been saved to
- Re-insert the sound or movie (Insert, Movies and Sounds, ...
From File)
- Save your presentation
If this doesn't solve your problem, or your presentation contains
so many links that these "quick fixes" would be too slow, read on.
Why images, movies and sounds go bad
There are two main reasons why images, movies and sounds might work
on your computer but not on others:
- Broken links
- Missing CODECs
- Viewer Bugs
If you use a Mac, read
this page and the linked pages for some important Mac-specific
info.
Before we delve into the murky muddle of multimedia, let's look
at linked images. They're fairly straightforward.
Images
Avoid linking images if possible. If you already have linked images
in your presentation, PC users can use the free demo version of
PPTools FixLinks Pro to fix image links or embed the images so they
won't break when the PPT file and images are moved to another
computer.
Read more about it on
The PPTools Site or download it at
http://get.pptools.com
Movies and Sounds
Movies are always linked in PowerPoint. So are all sounds but WAVs.
WAV sounds are linked if they're above the maximum embedding size
you specify in Tools, Options. But not always. See below.
To avoid linking problems:
- Pick (or create) the folder you want to store your
presentation and movies/sounds in. Save your presentation to
that folder.
- Copy sound and movie files to the same folder.
- Insert the sounds and movies into your presentation from
that folder.
- When you move the PPT file to another computer, be sure to
move all the movie and sound files too. As long as you put them
in the same folder as the PPT file, the links will usually not
break.
By following these steps, you force PowerPoint to create
"pathless links" -- links that point to just the linked file name,
not the path. When PPT sees these, it looks for the linked file in
the current folder, which is almost always the one where the PPT
file itself lives. Result: the links don't break.
It won't work to copy the sounds/movies to the folder with the
PPT file after you've inserted them.
If you've already added sounds and movies, either delete them
then reinsert them from the folder where the PPT file lives or (if
you use a PC) check out
PPTools FixLinks Pro, which will de-path the links in your
presentation automatically.
PPTools
FixLinks Pro converts your links from fully pathed ones (for
example links that point to C:\My Documents\Images\MyPhoto.JPG ) to
pathless/relative links ( MyPhoto.JPG only, no path or drive).
When PowerPoint runs into one of these pathless links, it looks
for the linked file in the current operating system path, just as it
does with links to files you've inserted following the instructions
above.
Note: this is NOT necessarily the same as the location of the
current PowerPoint file, though it often is. In order for your links
to work, you need to understand where PowerPoint will look for them,
even if you've ensured that they're relative. Here's what we've
learned about it:
| When you: |
PowerPoint sets current path to: |
| Start PowerPoint; choose File, Open; choose a PPT or PPS
file |
Same folder as PPT/PPS file |
| Start PowerPoint; choose Open An Existing Presentation |
Same folder as PowerPoint's main EXE file or ??? |
| Start PowerPoint; choose file from Most Recently Used
list |
Same folder as PowerPoint's main EXE file or ??? |
| Doubleclick a PPT/PPS in Explorer |
Same folder as PPT/PPS file |
| Start a PPT/PPS from command prompt |
Current drive/folder |
| Start a PPT/PPS from a shortcut |
Shortcut's Start-In folder, if set; otherwise, the same
folder as the shortcut file |
|