Here is a small selection of the best video tutorials for an introduction to multimedia systems. They cover the basics of sound, images, and video technologies.
Audio Technology ❯ Digital Audio Explained: Sound Sampling
Video Technology ❯ 720p vs. 1080i Explained
Video Technology ❯ Progresive Scan vs. Interlaced Scan
Video Technology ❯ ATSC 3.0 Next Generation Broadcasting
Compression ❯ How JPEG Works
Compression ❯ Basics of Video Encoding
Compression ❯ Introduction to Video Compression
Compression ❯ Audio File Formats
Compression ❯ Image File Formats
Compression ❯ H.264 Compression Technology
Compression ❯ H.265 (HEVC) vs H.264 (AVC) Compression
Multimedia Physiology ❯ The Optical Illusion of Motion
Multimedia Physiology ❯ Phi Phenomenon Example 2
History of Multimedia ❯ The Original Macintosh Super Bowl 1984 Commercial