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Driving Miss Digital

Driving Miss Digital, written as a simple fictional love story, is a primer that explains the basics and basis of modern audio and video technology.

Driving Miss Digital is a primer that explains, from first concepts, the basics and basis of modern audio and video technology. It is written as a fictional love story in simple English.

I highly recommend you read not more than two articles a day. You’ll have the answer to everything you’re looking for in no time. Enjoy!

Important: The internal navigation links are broken. Use this menu to navigate to all the chapters.

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Start here: Introduction

Analogue is Analog

Section One: Analog, Digital and Sampling

Analogue is Analog
Digital is Discrete

Professor Sampler’s notes:

Understanding Analog Signals

  1. Analog
  2. Signal
  3. Waves
  4. Wave-particle duality and Uncertainty
  5. Disadvantages of Analog Systems

Understanding Digital Signals

  1. Digitization
  2. Decimal, Binary and Hex
  3. Analog vs Digital
  4. Disadvantages of digital systems

Understanding Sampling

  1. Sampling analog signals
  2. The Shannon-Nyquist sampling theorem: Part I
  3. The Shannon-Nyquist sampling theorem:Part II
  4. The Shannon-Nyquist sampling theorem:Part III
  5. Reconstruction
  6. Interpolation
  7. Aliasing

The Challenge


Section Two: The Eye and the Image

The Eye Checkup

Defining Sharpness
Image Resolution
The World of Contrasts
At the Edge of Acutance
What Noise Does

The First Phone Call

Notes by Dr. Optoglass:

Understanding the Human Eye

  1. The Sine Grating
  2. Spatial Frequency
  3. The Human Eye Part I
  4. The Human Eye Part II
  5. The Human Eye Part III
  6. Eye Geometry

Comparing the Eye with a Camera

  1. Angle of View and Aspect Ratio
  2. The Focal Lengths of the Human Eye
  3. The Resolution of the Human Eye
  4. Airy Disk and Pixel Density of the Eye
  5. The Megapixel Counts of the Human Eye

Understanding Light

  1. How to Measure Light
  2. The Units of Photometry Part I
  3. The Units of Photometry Part II
  4. Camera Exposure
  5. How to Read Light for Exposure
  6. The F-numbers of the Human Eye

Understanding Dynamic Range and Color

  1. Sensitivity and ISO of the Human Eye
  2. Dynamic Range of the Human Eye
  3. Color Bit Depth, Middle Grey and White Balance of the Human Eye

Understanding Motion and Frame Rates

  1. Motion and the Frame Rate of the Human Eye

Understanding Stereoscopy

  1. Stereoscopy – Understanding Depth
  2. Stereoscopy – Stereopsis, Parallax and the Inter-ocular Distance
  3. Stereoscopy – Convergence and Fusion
  4. Stereoscopy – Challenges in Reproducing Stereopsis in Cameras and Displays

Understanding Noise and Dithering

  1. Noise and Dithering

The Night Out
Lights Out


Section Three: The Ear and Audio

A New Awakening
The Difference between Sound and Audio
Hearing vs Listening

Grandma Moon Speaks:

Understanding Sound

  1. What is Sound?
  2. What Influences Sound
  3. RMS and the Decibel

Understanding the Human Ear

  1. The Human Ear Part 1
  2. The Human Ear Part 2

Qualities of Sound

  1. Frequency Range of the Human Ear
  2. Pitch and Tone
  3. Timbre and Duration
  4. Harmonics
  5. Loudness or Volume
  6. Reverberation and Echo
  7. The Doppler Effect

Making Sound Work

  1. Bit Depth and Sample Rate of the Human Ear
  2. Pulse Code Modulation, and LPCM
  3. How many Audio Channels does the Human Ear Need?
  4. Stereo Sound
  5. Human Voice
  6. Recording Sound

The Same Story


Section Four: Unification

Sampler in the Dock
Knowing the Enemy
Love, in Secret
Analog Stands on Trial
Time Sweeps, whether there’s Dirt or Not
A New Town

Bob’s and Cathy’s Notes – Building the Ideal Audiovisual System:

  1. Camera, Resolution and Frame Rate
  2. Sensitivity, Dynamic Range and Color
  3. Audio
  4. Summary

Note: The internal navigational links on each article are broken.