Title

A Graphic Method for Predicting Audibility of Noise Sources

Date

1982

Index Abstract

Coming Soon

Photo Quality

Not Needed

Report Number

AFWAL TR 82-3086

Creator

Fidell, Sanford

Horonjeff, Richard

Corporate Author

Bolt Beranek and Newman Inc.

Laboratory

Flight Dynamics Laboratory

Date Issued

1982-0-01

Extent

42

Identifier

ADA123736

Access Rights

Approved for Public Release; Distribution Unlimited

Distribution Classification

1

Contract

F33615-82-M-3221

DoD Project

2401

DoD Task

240101

DTIC Record Exists

No

Distribution Change Authority Correspondence

None

Abstract

This report provides the technical rationale for revision of a chart developed by Fidell, Pearsons, and Bennett (1972). This chart expresses the relationships between signal-to-noise ratio and frequency that govern detectability of acoustic signals by human observers. The chart permits a user: 1) to predict the frequency region of a spectrum that is most detectable in any given ambient noise background; 2) to quantify the degree of detectability of the signal in question; and 3) to estimate reduction in signal-to-noise ratio necessary to render the signal undetectable

Report Availability

Full text available

Provenance

AFRL/VACA

Type

report

Format

1 online resource

Subject

Signal To Noise Ratio

Hearing

Audio Frequency

Predictions

Threshold Effects

Graphs

Acoustic Signals

Acoustics

Noise Reduction

Bandwidth

Ambient Noise

Sound Pressure

Masking

Background Noise

Auditory Acuity

Auditory Perception