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Old 28th August 2017
 
Lives for gear
 
Jens Eklund's Avatar
 
That would naturally depend on what kind of measurement you're comparing. Reverberation chamber or impedance tube. If Chamber: use the same size as the sample used in the actual measurement. If impedance tube; use infinite. Also, you naturally need to use diffuse (random incidence) setting for reverberation measurements and 0 deg incidence for tube.