Keywords: Noisebarrierm.jpg en According its caption on w en Noise barrier Acoustical scientist measures sound in noise barrier design study Santa Clara County California 1970 own Anlace w en the original uploader of this file Anlace w en Anlace en Original upload log en wikipedia ftcg page en wikipedia Noisebarrierm jpg wikitable - 16 44 12 February 2006 1 856 × 932 502 509 bytes Anlace w en <nowiki> i took this picture in 1970 and release all rights </nowiki> - 16 40 12 February 2006 1 856 × 932 502 509 bytes Anlace w en <nowiki> i took this pic and release all rights </nowiki> Noise barriers in the United States Noise measurement |