audio calculators

General Topics

Harman’s How to Listen
How to Listen is a desktop software application developed by the Harman International R&D group for the purpose of training and selecting listeners used in audio product research, development, and testing. The software consists of a number of training exercises where different kinds of timbral, spatial and dynamic distortions commonly found within the recording and audio chains are simulated and added to music.
The listener’s task is to identify, classify or rate these distortions according to a number of well-defined perceptual attributes and scales. The software automatically adjusts the difficulty of each training task based on the listener’s performance.
Harman is happy to offer a free beta version of this software to audio enthusiasts in the hope that they will use it to improve their critical listening skills and appreciation for high quality sound reproduction.

” +/-3 dB or -6 dB, What’s the Difference? ” pdf iconpdf (QSC) Written by: Gerry Tschetter Date: September 15, 2009
The purpose of this document is to explain the meaning of both specifications as they are commonly used (or misused) in pro-audio today and provide a basis for comparing loudspeakers with differing stated specifications.

Glossary of Audio Terms (Galaxy Audio)

Audio Specifications (Rane)
This note introduces the classic audio tests used to characterize audio performance. It describes each test and the conditions necessary to conduct the test.

No Such Thing as Peak Volts dBu (Rane)
It is incorrect to state peak voltage levels in dBu. It is common but it is wrong.

Calculating dB’s pdf icon (Community Pro Audio)
Calculating dB, volts, and SPL made easy.

Polarity and Phase pdf icon (Community Pro Audio)
Why they are different and what their effects are. Lots of graphs.

Assistive Listening Calculator (Acoustic Dimensions)
Interactive Online Tool

Is Sound Quality Important in a House of Worship? And if So, How Do You Achieve It? (Bose)
Free Downloads by: Curt Taipale, professional audio consultant

A Tech’s Wish List for a Quality Sound System (Bose)
Free Downloads by: Curt Taipale, professional audio consultant

    Contact Us

    Synergetic Audio Concepts, Inc.
    8780 Rufing Rd
    Greenville IN, 47124

    USA Phone: 812-923-0174
    Fax: 866-547-0298

    Contact Us

    Email Updates

    Sign up to receive web-based training releases and our in-person seminar schedule.

    Full Name:

    Email Address:


    SynAudCon is very grateful to our Sponsors and for the years of support they have given us. Visit the sponsor page


    Join SynAudCon

    Joining SynAudCon makes you a Member of our Community. Our Community is the foundation of our synergetic philosophy and a valuable asset to your ongoing audio education.


    RSS Feed