Hello. Sign In
ASA Standards Store in partnership with IHS Markit
Look Inside


2006 Edition, February 28, 2006

Complete Document

American National Standard For Rating Noise with Respect to Speech Interference

Includes all amendments and changes through Reaffirmation Notice , March 30, 2011

View Abstract
Product Details
Document History

Detail Summary

Active, Most Current

Price (USD)
Single User
In Stock
PDF + Print
In Stock
$126.00 You save 30%
Add to Cart

Product Details:

  • Revision: 2006 Edition, February 28, 2006
  • Published Date: March 30, 2011
  • Status: Active, Most Current
  • Document Language: English
  • Published By: Acoustical Society of America (ASA)
  • Page Count: 20
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

This standard defines a simple numerical method for rating the expected speech-interfering aspects of noise using acoustical measurements of the noise. The relevant acoustical characteristics of the noise are summarized in terms of a single-valued index known as the speech interference level. The application of the measure is intended for natural speech.

NOTE The speech interference level is related to the speech intelligibility index (ANSI S3.5-1997 (R2002) and to A-weighted sound level (ANSI S1.42-2001 (R 2006)).