Basics of Sound and Audio

Simplified Fundamentals for all Car Audio Professionals

  Enroll in Course

Basics of Sound and Audio is for any and all Car Audio Professionals. It's an hour-long course, broken into three 20-minute segments. This course will help you with the basic concepts required in Tuning DSP Systems, Audio System Design., OEM Integration and Testing, and other courses. NOTE: You can enroll now, and view the course any time!

Part One

  • Sound
  • Cycles and Hertz
  • Audible Range
  • Bass, Midrange, Treble
  • Localization
  • Octaves
  • Loudness
  • Perceptual Masking
  • Harmonics
  • Speakers
  • Analog Recording
  • Resistance and Impedance
  • Polarity and Phase
  • Pre-emphasis
  • Frequency Responses
  • Digital Recording

Part Two

  • Amplifier Classes
  • Rules of Power
  • RTA’s and O-Scopes
  • Distortions
  • Clipping and Signal Paths
  • O-Scopes and Test Tones
  • Harmonics and Intermodulations
  • Woofers, Midranges, and Tweeters
  • Rule of Excursion
  • Rule of Dispersion
  • Crossover Filters
  • Resonance
  • Active vs Passive

Part Three

  • More on Frequency Responses
  • Human Preference and Frequency Response
  • Stereo
  • Speaker Dispersion in Cars
  • Improving System Designs
  • Three Problems of Car Stereo
  • Path-Length Differences
  • Delay
  • Review



Your Instructor


Kenneth Ward
Kenneth Ward

Ken Ward has been in car audio for more than three decades. He's worked as a national trainer, a product manager, and owned his own very successful car audio and electronics integration business. His company, Educar Training, has been recognized as the leader in OEM audio analysis and correction. He's spoken at industry conventions and events many times, contributed to certification programs in their infancy, and is widely considered one of the top trainers in the "12-volt" world.


Frequently Asked Questions


When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 30 days and we will give you a full refund.

Get started now!