Audio Quality and File Size

Hi

I have a colleague who is currently creating a rather large (100 PPT slides and counting) eLearning project in Articulate. It also contains quite a few Captivate videos.

There are issues with audio quality, although set to CD quality it sounded "tinny" and low quality. I've suggested it should be increased to 128 kbps, which has helped enormously,  but we have concerns that this may make the PPT and PPTA file sizes enormous.The PPTA is currently at 25mb

Any tips from folks who are used to dealing with such large PPT files?

Thanks in advance!

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