Updated: Wednesday, 25 June 2014

Home

Catalog

Tech Topics

Audio Links

  True Audio Home Page
True Audio publishes the software applications TrueRTA and WinSpeakerz and the book Introduction to Loudspeaker Design. Click on the Selection Guide below to find your product. Scroll down to review our suggested systems!
m





New Second Edition

Only $9.99
on iBooks



A Mac or iOS device is required.

Hard Copies are now available through Amazon Worldwide!
New for 2014

Introduction to Loudspeaker Design
Second Edition

available on iBooks

The second edition brings new material and polishes the first edition with many new or improved illustrations. The crossover design chapter has been expanded to include formulas for calculating component values for the most popular crossover types. Equations have been added for calculating impedance compensation and attenuation networks. A new Chapter 8 titled “Loudspeaker Simulation” has been added and introduces loudspeaker equivalent circuit analysis with equations for calculating the magnitude and phase responses of closed and vented loudspeaker systems.

 
 
About TrueRTA TrueRTA Selection Guide TrueRTA FAQs TrueRTA Support TrueRTA Downloads

Create your own professional measurement system starting with TrueRTA software on your pc. Then add the measurement microphone, preamp and USB interface of your choice. The TrueRTA setup you choose is virtually unlimited for field measurement work because you can select your own professional grade microphone cable. This allows you to take measurements from any distance.

All-in-one measurement systems do offer simplicity but they also lock you into a fixed system with no upgrade paths.

"While lots of audio measurement software applications exist for the PC, the one that seems to have captured the hearts of engineers and enthusiasts is TrueRTA, available at trueaudio.com. Most speaker engineers I know keep a copy on their computers." - Brent Butterworth, Sound and Vision Magazine, Jan 2011

Read the entire article here.


TrueRTA is currently at version 3.5.5:


Screenshot of Spectrum Analyzer in Bar Mode - Level 4


Here are some complete measurement systems we recommend in 3 price ranges. All are upgradable!
Please Note: True Audio only sells the software for these systems. The hardware must be purchased elsewhere.

Recommended Audio Measurement Systems for use with TrueRTA
 

System 1
Basic

System 2
Standard
System 3
Advanced

1/3rd Octave RTA
Great for Car Audio
Pink Noise
Upgradable

1/6th Octave RTA
Acoustic Measurements
Electronic Measurements
Quick Sweep
Upgradable

1/24th Octave RTA
Acoustic Measurements
Electronic Measurements
Quick Sweep
Upgradable

TrueRTA Measurement Software  
TrueRTA Level 2
Buy Now from True Audio
$39.95
TrueRTA Level 3
Buy Now from True Audio
$69.95
TrueRTA Level 4
Buy Now from True Audio
$99.95
Professional Measurement Microphone (Calibrated)
(Purchase at Parts Express)

Dayton EMM-6 (PE)
$49.00
Dayton EMM-6 (PE)
$49.00
Dayton EMM-6 (PE)
$49.00
15 foot Professional Microphone Cable
(use other lengths or in multiples for long runs)
(Purchase at Parts Express) 


Pro Co15' (PE)

$9.98
Pro Co15' (PE)
$9.98
Pro Co15' (PE)
$9.98
USB Audio Interface
(Purchase at Amazon)

MXL Mic Mate (Amazon)
$40.00

Behringer Xenyx 302USB(Amazon)
$49.99
Tascam US122 MKII (Amazon)
$79.99
Your Windows PC      
Approximate Complete System Cost   $138.93   $178.92   $238.92


Click Here for a list of hardware recommended for use with TrueRTA

Click Here to download the FREE TrueRTA Level 1
Level 1 NEVER EXPIRES!  Vista and Windows 7 Compatible!
 

Click Here to learn more about TrueRTA! Read about TrueRTA Level 4 from
Acoustic Software Reviews
Questions about Sound Cards, Mics or Calibration?
Click here:
TrueRTA FAQs

How to Use TrueRTA
at the

 
Audio Forum!

NEW v 3.5 for Windows 7
The new version is fully compatible with Windows 7 and now allows selection of audio devices from within the software.
New to Real Time Analyzers? Click below to go to the Audio Visual Science Forum

Read the .pdf Affordable Audio Review:

 

 WinSpeakerz Loudspeaker Design Software "The Speaker Design Toolbox"
About WinSpeakerz WinSpeakerz Support WinSpeakerz_Demo WinSpeakerz Drivers



You can use our friendly software to build great sounding loudspeakers that you might pay hundreds or even thousands of dollars for at an audio salon! Windows 7 compatible.

New Low Price! Now Only $39.95!

Click here to learn more!
Click here to download the WinSpeakerz Free Demo - Never Expires! (Windows 7 compatible)

Click here to explore John Murphy's Corner-Line-Array...An Open DIY Project!

 

 Introduction to Loudspeaker Design by John L. Murphy


Our highly acclaimed book!

"I highly recommend this book to anyone entering the difficult but rewarding, area of speaker design. I found it a pleasure to read."

"I cannot imagine a better 'Introduction to Loudspeaker Design' than this book"

from Dennis Colin's review in Speaker Builder magazine...click here to read the complete review


Introduction to Loudspeaker Design'
is written for hobbyists, students, technicians and engineers seeking an overview of the technology of loudspeakers. Starting with a brief history of audio developments the book begins by introducing the concepts of frequency, pitch and loudness and proceeds to develop the idea of a loudspeaker as a system. 

The book covers such topics as loudspeaker design tradeoffs, spatial loading, diffraction loss, cavity effect and enclosure construction. A complete chapter is devoted to the subject of crossover design. The appendices contain technical references, design aids and a chart depicting 18 different loudspeaker enclosure types. 


Chapter Headings include:

reddot.gif (829 bytes) Audio Basics
reddot.gif (829 bytes) Loudspeaker Basics
reddot.gif (829 bytes) Advanced Loudspeaker Topics
reddot.gif (829 bytes) Enclosure Design & Construction
reddot.gif (829 bytes) Crossover Design
reddot.gif (829 bytes) Driver Parameter Measurement
reddot.gif (829 bytes) Frequently Asked Questions


Click here to learn more!
Click here to order!

 

Audio Books

Free Demos

Audio Topics

From True Audio

Speaker Builder magazine said: "In conclusion, I cannot imagine a better "Introduction to Loudspeaker Design" than this book."  Click to read more ...

'Introduction to Loudspeaker Design"
by John L Murphy

The book for hobbyists, technicians, and engineers seeking an overview of the technology of loudspeakers.

The perfect companion to our speaker design software!

Only
$24.95!

Order ILD Now!
Read the full book review
Read About ILD!

True Audio, in Association with 
Click here to visit the Audio Engineering Bookstore ...
Invites You to Visit
The Audio Engineering Bookstore


Lancaster's Active Filter Cookbook
by Don Lancaster


Loudspeaker Design Cookbook
by Vance Dickason

to the Bookstore

Download  our Real Time Analyzer!
winlogo.gif (272 bytes) TrueRTA Level 1
for Windows XP, Vista and Windows 7

Download a Demo of our software and see for yourself what loudspeaker design is all about!

winlogo.gif (272 bytes) Get the WinSpeakerz demo and Demo Manual!  for Windows XP, Vista and Windows 7
   

More Free Stuff

Murphy on Tubes vs. Solid-State

Echo, Reverb and Time Delay Effects
John Murphy's Posts on Audio Topics
   
Speaker Topics
Overview of  Crossovers
Overview of  Crossovers-II
Linkwitz-Riley Crossovers
Neutralizing L(e) with a Zobel
Design a Linkwitz Transform Circuit
   

Audio Links

  Organizations
  Speaker Driver Manufacturers
  Speaker Component Sources
  Speaker System Manufacturers
Speaker Suppliers
Speaker Reconing
Audio Search Engines
Other Audio Sites
Woodworking Sites
   

DIY Audio Projects

Murphy-Corner-Line-Array

Catalog

Reviews

Customer Comments Meet John Murphy!
 

Windows software

 

Book - ILD

Amazon Book Store

 

"I use WinSpeakerz frequently. It's extremely easy to use, fast, accurate and helpful. It provides a quick way of trying many "what if" scenarios. Any speaker designer from beginner to pro will find WinSpeakerz to offer exceptional value. Highly recommended!"

Mike Dzurko,
President, 
Audio Concepts Inc.

Read More Customer Comments!

John L. Murphy

John is the designer of:

WT3
TrueRTA
WinSpeakerz
MacSpeakerz
and the author of:
'Introduction to Loudspeaker Design'
Read about John's extensive background in Physics and Audio!

Support

WinSpeakerz Support

WinSpeakerz Drivers

Special Pages



Andersonville TN 37705

Phone: 865-494-3388

 

True Audio Home Page | Catalog | Tech Topics | Audio Links | Book Store
WinSpeakerz InfoWinSpeakerz SupportWinSpeakerz Drivers | Try the WinSpeakerz Demo
TrueRTA Info | TrueRTA Support  | TrueRTA Downloads
Introduction to Loudspeaker Design | About the Author | Box Chart | Privacy Page | Security Policy

Your comments are welcome at webmaster@trueaudio.com
Copyright©1990-2014 True Audio, Andersonville TN USA, All rights reserved.