AES Store

Journal Forum

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
4 comments

Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
9 comments

New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
1 comment

Access Journal Forum

AES E-Library

Low-Frequency Acoustic Noise and Its Effect on Loudspeaker Measurements

Measured loudspeaker responses fall rapidly below about 40 Hz, and acoustic noise from ventilation systems or environmental factors will cause errors in the measurement where the response is low. Spectra of the acoustic noise in our laboratory are presented, and the implications on acoustic transducer measurements are discussed. A microphone capable of response to dc is used to measure the pressure fluctuations to very low frequencies, even barometric changes due to weather. Most of the acoustic noise appears to be due to ventilation systems, and noise power spectra generally vary as 1/f squared at low frequencies.

Author:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Subject:

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!


 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society