Sponsored by

The Mystery Of Mastering: What You As An Engineer Need To Understand

Misunderstood by many, all engineers should familiarize themselves with the process of mastering early in their career.

By Bobby Owsinski May 2, 2011

The Audio Mastering Handbook
This article is provided by Bobby Owsinski.

Mastering audio is somewhat of a mystery to many who aren’t a mastering engineer or who haven engineered many released records.

Not only is the process somewhat of a mystery, it’s a misunderstood mystery as well.

So I thought it might be a good idea to do a brief overview, excerpted from “The Audio Mastering Handbook”.

Technically speaking, mastering is the intermediate step between mixing your audio and preparing it to be replicated or distributed. But it’s really much more than that.

Mastering is the process of turning a collection of songs into a record by making them sound like they belong together in tone, volume, and timing (spacing between songs).

Mastering is not a set of tools or a device that music is run through and automatically comes out mastered (despite what the adverts for these types of devices say).

It’s an art form that, when done conscientiously, mostly relies on an individual’s skill, experience with various genres of music, and good taste.

Mastering should be considered the final step in the creative process since this is our last chance to polish and fix our project. A project that has been mastered simply sounds better.”

“It sounds complete, polished, and finished. The project that might have sounded like a demo before now sounds like a “record”. Here’s why:

• The mastering engineer has added judicious amounts of EQ and compression to make the project bigger, fatter, richer, and louder.

• He’s matched the levels of each song so they all have the same apparent level.

• He’s fixed the fades so that they’re smooth.

• He’s edited out distorted parts or glitches so well you didn’t even notice.

• He’s made all the songs blend together into a cohesive unit.

• In the case of mastering for CD or vinyl, he’s inserted the spreads (the time between each song) so the songs flow seamlessly together.

• He’s sequenced the songs so they fall in the correct order.

• He’s proofed your master before it’s sent to the replicator to make sure it’s free of any glitches or noise.

• He’s also made and stored a back-up clone in case anything should happen to your cherished master.

• He’s taken care of all of the shipping to the desired replication facility if you’re using one.

Of course, as you’ll read here on ProSoundWeb, the mastering process can indeed be accomplished by skilled engineers. Interested in tackling your own mastering? Check out the following tutorial for a few quick tips.

Bobby Owsinski is an author, producer, music industry veteran and technical consultant who has written numerous books covering all aspects of audio recording. For more information be sure to check out his website and blog.

About Bobby

Bobby Owsinski
Bobby Owsinski

Music Industry Veteran and Technical Consultant
Bobby Owsinski is an author, producer, music industry veteran and technical consultant who has written numerous books covering all aspects of audio recording. To read more from Bobby, and to acquire copies of his outstanding books such as The Recording Engineer’s Handbook, be sure to check out his website at


Have something to say about this PSW content? Leave a comment!

Scroll past the ”Post Comment” button below to view any existing comments. Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Tagged with:

Subscribe to Live Sound International

Subscribe to Live Sound International magazine. Stay up-to-date, get the latest pro audio news, products and resources each month with Live Sound.