During the year 2005 it has proceeded to the design and construction of a new anechoic chamber at Laboratorio de Sonido of the Universidad Politécnica de Madrid. This new chamber has a free volume of 70 cubic meters and is built with rock wool wedges covered with a porous cotton cloth. The chamber cutoff frequency is 150 Hz. The chamber has been qualified according to that established in the ISO 3745 standard for the determination of the maximum distance between the sound source and the measurement position where the inverse square law is observeded, within some tolerance. For the qualification, different types of excitation signals have been used as pure tones, broadband noise, narrow band noise and pseudorandom sequences MLS.

Authors: Blanco-Martin, Elena; Gómez-Alfageme, Juan José; Sánchez-Bote, José Luis
Affiliation: Universidad Politécnica de Madrid
AES Convention: 122 (May 2007) Paper Number: 7153
Publication Date: May 1, 2007 Import into BibTeX
Subject: Instrumentation and Measurement
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=14138

Click to purchase paper as a non-member 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 $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 122Papers)   /122/7153.pdf

Start a discussion about this paper!