AES Standard

The following standards and information documents are published by the Audio Engineering Society. The latest printing will include all amendments and corrections and will be available within a week of its date.

PLEASE NOTE: These are copyrighted documents and are for the use of the original purchaser only. They must not be printed or circulated without the written permission of the AES Standards Committee. Any other use of AES standards information obtained from this website, including republishing or selling, is expressly forbidden.

PREVIEW extracts are provided without charge as a guide to the content of each standard.

For links to other standards organizations relevant to audio engineering, click here. For questions, please contact the AES Standards Secretary.

AES Store Shopping Instructions

• To select multiple documents, check the select box next to each item you would like to add to your shopping basket and press the button at the bottom of page to add these items to the shopping cart.
• To add a single item to your shopping basket, click on the +1 button next to the item.

1 record found.

AES75-2023: AES standard for acoustics – Measuring loudspeaker maximum linear sound levels using noise

Printing Date: 2023-04-16

Publication History: Published 2022, Revised 2023

Abstract: This standard details a procedure for measuring maximum linear sound levels of a loudspeaker system or driver using a test signal called Music-Noise. In order to measure maximum linear sound levels meaningfully and repeatably, a signal is required whose RMS and peak levels as functions of frequency have been shown to be representative of program material. Various existing standards define noise-based test signals which, like Music-Noise, have incorporated the knowledge that typical program material has a diminishing RMS level with increasing frequency, but Music-Noise uniquely also features a relatively constant peak level as a function of frequency, so that the crest factor (peak level – RMS level) increases with frequency, which an analysis on a large variety of music and other content has revealed is an important additional characteristic of typical program material. The specified procedure determines a loudspeaker’s maximum linear sound levels by incrementally increasing the Playback Level of Music-Noise until a stop condition is met: either an unacceptable change in the transfer function’s magnitude or an unacceptable change in the coherence of the transfer function.

downloadable PDF (Full) (938 KB)      $0.00 AES Member   |   $100.00 Non-Member

Downloadable Preview (540 KB)