How does a computer program decide which bits of an audio file to keep and which to ditch during compression? We learn about the mp3 algorithm and Jonathan talks about math a lot.Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htmAnd to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices
