What Do We Mean By Audibility?

Author: David Moulton

Email: dmoulton@ultranet.com

Web site: http://www.moultonlabs.com

TABLE OF CONTENTS

What Do We Mean By Audibility?

Why Should We Worry About This?

"Audible" can be simply defined as:

Types of audible thresholds

The Basic Rule

In a particular test case:

Loudness Difference Demo

4 Loudness Differences

Results

% Correct X for all levels

Apparent Conclusions:

But Wait A Minute!

The Range Rule:

% correct X with Pink Noise

And here is what happens with music: % correct X with music

Pink Noise vs. Music

Implications of this

Meanwhile:

Who has Golden Ears?

Several observations:

For instance:

Or:

Meanwhile:

Therefore:

Such a standard is useful

For design purposes:

What does my test suggest?

However:

What do we mean by "chance"?

The Coincidence Rule

In this case:

Therefore, to be more sure:

At the same time,

Things we need to know about listeners:

More about listeners:

And still more . . .

When testing for small differences or thresholds

Conclusions

A related observation:

For example:

Another observation:

Still more observations:

And as a result . . .

But always keep in mind . . .

That's all, folks

to top of page

back to learning

Copyright 2002, Parsons Audio. We welcome your questions, comments, and contributions >>> Webmeister@paudio.com.