I have covered this before, but it keeps coming up. This week I created this quick tutorial for a client, so here it is in a bit more detail.
1. The only audio format that can be embedded into a PowerPoint presentation is a .wav
2. By default PowerPoint will only embedd a .wav file if it is under 100k (very small – generally less than 10 seconds)
3. You can raise the embeddable file size to 50 MB!
4. Go to TOOLS >> OPTIONS
5. Go to the GENERAL tab
6. Change the 100 to 50000 (do not add a comma)
– Troy @ TLC