
Acoustics - Determination Of Sound Power Levels And Sound Energy Levels Of Noise Sources Using Sound Pressure - Engineering Methods For An Essentially Free Field Over A Reflecting Plane
出版:Acoustical Society of America

專家解讀視頻
2011(R2016) [25/02/2016]2011 [05/04/2011]1999(R2004) [12/10/2004]1999 ERRATA [01/01/0001]1999 [18/10/1999]
Also numbered as ISO 3744. (09/2003) Supersedes ANSI S12.34 (02/2006)