Acoustics. Determination of sound power levels of noise sources. Engineering methods for small, movable sources in reverberant fields. Comparison for hard-walled test rooms— 20 стр.
Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane— 40 стр.
Test code for the measurement of airborne noise emitted by rotating electrical machinery, Engineering method for free-field conditions over a reflecting plane— 28 стр.
