AES Store

Journal Forum

Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
10 comments

Reflecting on Reflections - June 2014
1 comment

Quiet Thoughts on a Deafening Problem - May 2014
1 comment

Access Journal Forum

AES E-Library

An Anechoic Chamber with Blanket Wedge Construction

The performance of a small anechoic chamber of inexpensive construction is described. The chamber was built within another room, and acoustic absorption material was also mounted in the outer room. The room rests on a concrete slab which is supported on heavy density fiberglass board. This fiberglass board in turn rests on second concrete slab which is supported on sand. The room is constructed of concrete blocks, sealed with concrete plaster. Inside the room, sound absorption is accomplished with a thick fiberglass blanket containing a muslin septum, and with a thinner blanket laced on a network of pipes to form a wedge construction. Both conventional loudspeakers and a spark discharge were employed as sound sources for measuring the response of the room. The performance of the room is shown to be very satisfactory throughout the intermediate audio frequencies for the calibration of equipment and for measurements on speech.

Authors:
Affiliation:
JAES Volume 15 Issue 1 pp. 67-72; January 1967
Publication Date:

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