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Xiph.Org's educational videos present the technical foundations of modern digital media as increasingly detailed installments. One community member described the first episode as “a Uni[versity] lecture I never got[,] but really wanted”.

So, without any further ado, welcome to one hell of a new hobby.


This episode explains modern digital media from historical origins, basic concepts, to modern implementation. It’s intended for engineers, (software) hackers, mathematicians — the people who are interested in discovering and making things and building the technology itself — and budding geeks wanting to begin exploring video coding, as well as the technically‐curious who want to know more about the media they wrangle for work or play.

Xiph.Org's second video on digital media explores multiple facets of digital audio signals and how they really behave in the real world.

Demonstrations of sampling, quantization, bit-depth, and dither explore digital audio behavior on real audio equipment using both modern digital analysis and vintage analog bench equipment, just in case we can't trust those newfangled digital gizmos. You can download the source code for each demo and try it all for yourself!

Playback Software

If you’re having trouble with playback in a modern browser or player, please visit our playback troubleshooting and discussion page.

Players supporting WebM and Ogg/Theora