Marco Marzaduri: digital media

I am Marco Marzaduri (Marco Roberto Maria Marzaduri) and I work in computing: cybersecurity, digital forensics and web development. Here I take apart the digital media we use every day: images, sounds, video and games, to understand what happens inside files, codecs and game engines.

Every article starts from a concrete question, tackles it with an example and ends with a summary worth keeping at hand.

What I write about here

• Graphics & images: pixels, colour, formats.
• Digital audio: sampling, codecs, recording.
• Video & streaming: codecs, bitrate, HDR.
• Game development: game loop, physics, sprites.

Report – Rai 3

In 2017 I appeared in the Italian investigative programme Report (Rai 3), in the episode “Un italiano a Panama”. The excerpt is on my YouTube channel.

My other sites

My professional website is marzaduri.com; my other notebooks are marzaduri.org, marzaduri.net, marcomarzaduri.com, marcomarzaduri.org and marcomarzaduri.net.

Topics

• Graphics & images — Pixels and vectors, colour spaces, formats and compression, resolution and 3D graphics basics.
• Digital audio — Sampling, bit depth, codecs, home recording, mixing and podcasts.
• Video & streaming — Codecs and containers, bitrate, HDR, adaptive streaming, editing and transcoding.
• Game development — Game loop, engines, physics, collisions, sprites, enemy AI, audio and input.