IEC 60268-4 Ed. 3.0被替代
Sound system equipment Part 4: Microphones
出版：International Electrotechnical Committee
专家解读视频
specifies methods of measurement for the electrical impedance, sensitivity, directional response pattern, dynamic range and external influences of sound system microphones, and also gives recommendations as to characteristics to be specified. It applies to sound system microphones for all applications for speech and music
CEI EN 60268-4 Ed. 2 (2005) - Identical
BS EN 60268-4:2004 - Identical
DIN EN 60268-4 (2004-07) - Identical
I.S. EN 60268-4:2004 - Identical
NF EN 60268-4:2005 - Identical
PN EN 60268-4:2004 - Identical
NEN EN IEC 60268-4:2004 - Identical
