An Anechoic Chamber with Blanket Wedge Construction

Peterson GE, Hellwarth GA, Dunn HK. An Anechoic Chamber with Blanket Wedge Construction. J Audio Eng Soc. 1967;15(1):67-72. Available from: https://aes.org/publications/elibrary-page/?id=1113

@article{Peterson1967_1113,
  author = {Peterson, Gordon E. and Hellwarth, George A. and Dunn, Hugh K.},
  title = {{An Anechoic Chamber with Blanket Wedge Construction}},
  journal = {Journal of the Audio Engineering Society},
  volume = {15},
  number = {1},
  pages = {67--72},
  year = {1967},
  month = jan,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=1113}
}

TY  - JOUR
TI  - An Anechoic Chamber with Blanket Wedge Construction
AU  - Peterson, Gordon E.
AU  - Hellwarth, George A.
AU  - Dunn, Hugh K.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 15
IS  - 1
SP  - 67
EP  - 72
PY  - 1967
DA  - 1967/01/06
UR  - https://aes.org/publications/elibrary-page/?id=1113
PB  - Audio Engineering Society
LA  - en
AB  - 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.
ER  -