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Per aggiungere un commento audio alle slide di Powerpoint
One of several such tools. A straightforward one to start with.
Quite an interesting additional tool to add voice to your PPT deck - how useful it might be, who knows - may be for some key decision-maker/influencer who couldn't attend your face-to-face presentation?
It's 2012 the Age of Information and we're STILL using PowerPoint Wrong.